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Proteintech dmbt1
a Heatmap of secreted protein-encoding genes differentially expressed in MDA-MB-231 vs LvM16. b Overall survival of breast cancer patients stratified by <t>DMBT1</t> expression in the UNC cohort ( GSE3521 , GSE26338 ). c – e DMBT1 expression in human breast cancer of the Qilu cohort. Shown are tumoral DMBT1 mRNA levels ( c ) and serological DMBT1 protein levels ( d ) of those with liver-metastatic or non-metastatic primary tumors, and liver metastasis-free survival of patients stratified by tumoral DMBT1 expression ( e ). f DMBT1 mRNA and protein expression in MDA-MB-231 sublines. g – i CD62L induction ( g , h ) and Ccl8 expression ( i ) of KCs treated with CM of the indicated tumor cells with or without DMBT1 overexpression or knockdown. j NETosis of neutrophils cultured with CM from the KCs in i . n = 220 ( b ), 65 ( c , e ) and 22 ( d ) patients, and 3 biological repeats ( f – j ). P values were obtained by log-rank test ( b , e ) or two-tailed unpaired t -test (others). Data are shown as mean ± SD.
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1) Product Images from "Breast cancer induces CD62L + Kupffer cells via DMBT1 to promote neutrophil extracellular trap formation and liver metastasis"

Article Title: Breast cancer induces CD62L + Kupffer cells via DMBT1 to promote neutrophil extracellular trap formation and liver metastasis

Journal: Cell Discovery

doi: 10.1038/s41421-025-00819-8

a Heatmap of secreted protein-encoding genes differentially expressed in MDA-MB-231 vs LvM16. b Overall survival of breast cancer patients stratified by DMBT1 expression in the UNC cohort ( GSE3521 , GSE26338 ). c – e DMBT1 expression in human breast cancer of the Qilu cohort. Shown are tumoral DMBT1 mRNA levels ( c ) and serological DMBT1 protein levels ( d ) of those with liver-metastatic or non-metastatic primary tumors, and liver metastasis-free survival of patients stratified by tumoral DMBT1 expression ( e ). f DMBT1 mRNA and protein expression in MDA-MB-231 sublines. g – i CD62L induction ( g , h ) and Ccl8 expression ( i ) of KCs treated with CM of the indicated tumor cells with or without DMBT1 overexpression or knockdown. j NETosis of neutrophils cultured with CM from the KCs in i . n = 220 ( b ), 65 ( c , e ) and 22 ( d ) patients, and 3 biological repeats ( f – j ). P values were obtained by log-rank test ( b , e ) or two-tailed unpaired t -test (others). Data are shown as mean ± SD.
Figure Legend Snippet: a Heatmap of secreted protein-encoding genes differentially expressed in MDA-MB-231 vs LvM16. b Overall survival of breast cancer patients stratified by DMBT1 expression in the UNC cohort ( GSE3521 , GSE26338 ). c – e DMBT1 expression in human breast cancer of the Qilu cohort. Shown are tumoral DMBT1 mRNA levels ( c ) and serological DMBT1 protein levels ( d ) of those with liver-metastatic or non-metastatic primary tumors, and liver metastasis-free survival of patients stratified by tumoral DMBT1 expression ( e ). f DMBT1 mRNA and protein expression in MDA-MB-231 sublines. g – i CD62L induction ( g , h ) and Ccl8 expression ( i ) of KCs treated with CM of the indicated tumor cells with or without DMBT1 overexpression or knockdown. j NETosis of neutrophils cultured with CM from the KCs in i . n = 220 ( b ), 65 ( c , e ) and 22 ( d ) patients, and 3 biological repeats ( f – j ). P values were obtained by log-rank test ( b , e ) or two-tailed unpaired t -test (others). Data are shown as mean ± SD.

Techniques Used: Expressing, Over Expression, Knockdown, Cell Culture, Two Tailed Test

a – c In vivo BLI ( a ), ex vivo BLI ( b ) and NETosis ( c ) in livers of NOD-SCID mice treated with Clod after intrasplenic inoculation of MCF7 with or without DMBT1 overexpression. d–f In vivo BLI ( d ), ex vivo BLI ( e ) and NETosis ( f ) of NOD-SCID mice treated with GSK484 after intrasplenic inoculation of MCF7 with or without DMBT1 overexpression. g – j NETosis ( g ), CD62L + KCs ( h ) and in vivo BLI ( i ) of livers, and survival ( j ) of nude mice after intrasplenic injection of LvM16 cells with DMBT1 knockdown. k , l Primary tumor growth ( k ) and liver metastasis ( l ) in C57BL/6 mice after orthotopic injection of AT3 cells with Dmbt1 knockdown. n = 3 or 4 ( a , b ), 3 ( c , h , k , l ), 7 ( d , i , j ), 4 ( e , f , g ) mice per group. P values were obtained by repeated measures two-way ANOVA ( a , d , i , k ), Log rank test ( j ) or two-tailed unpaired t -test (others). Scale bars, 50 μm. Data are shown as mean ± SEM ( a, d, i, k ) or mean ± SD (others).
Figure Legend Snippet: a – c In vivo BLI ( a ), ex vivo BLI ( b ) and NETosis ( c ) in livers of NOD-SCID mice treated with Clod after intrasplenic inoculation of MCF7 with or without DMBT1 overexpression. d–f In vivo BLI ( d ), ex vivo BLI ( e ) and NETosis ( f ) of NOD-SCID mice treated with GSK484 after intrasplenic inoculation of MCF7 with or without DMBT1 overexpression. g – j NETosis ( g ), CD62L + KCs ( h ) and in vivo BLI ( i ) of livers, and survival ( j ) of nude mice after intrasplenic injection of LvM16 cells with DMBT1 knockdown. k , l Primary tumor growth ( k ) and liver metastasis ( l ) in C57BL/6 mice after orthotopic injection of AT3 cells with Dmbt1 knockdown. n = 3 or 4 ( a , b ), 3 ( c , h , k , l ), 7 ( d , i , j ), 4 ( e , f , g ) mice per group. P values were obtained by repeated measures two-way ANOVA ( a , d , i , k ), Log rank test ( j ) or two-tailed unpaired t -test (others). Scale bars, 50 μm. Data are shown as mean ± SEM ( a, d, i, k ) or mean ± SD (others).

Techniques Used: In Vivo, Ex Vivo, Over Expression, Injection, Knockdown, Two Tailed Test

a Co-IP assays for DMBT1 and MUC1-C in 293 T and HL60 cells. Ctrl, Ni-NTA bead control sample. b p65 phosphorylation and nuclear distribution of MUC1-C in KCs after treatment of CM of cancer cells with or without DMBT1 knockdown/overexpression. c ChIP-qPCR analysis of p65 binding to Ccl8 or Cd62l promoters in monocytes. d p65 phosphorylation and CCL8 expression of KCs cultured with DMBT1 -overexpressing MCF7 CM and/or JSH-23 (30 μM). e – g CD62L induction ( e ), Ccl8 and Cd62l expression ( f ) of KCs after treatment of LvM16 CM, with or without GO203, and the NET-inducing effects of the CM of such KCs ( g ). h – m GO203 treatment (15 mg/kg) of NOD-SCID mice with intrasplenic injection of MCF7 cells with DMBT1 overexpression. Shown are flow cytometry analysis of CD62L + KCs in livers ( h ), in vivo BLI ( i ), ex vivo BLI of livers ( j ), representative of BLI and metastases ( k ), NETosis in livers ( l ) and body weight changes of mice ( m ) at week 4 after cancer inoculation. n = 3 biological repeats ( c , e – g ), 7 ( h , i , m ), 6 ( l ) or 3 ( j ) mice. P values were obtained by two-tailed unpaired t -test (others). Scale bars, 50 μm. Data are shown as mean ± SD (others).
Figure Legend Snippet: a Co-IP assays for DMBT1 and MUC1-C in 293 T and HL60 cells. Ctrl, Ni-NTA bead control sample. b p65 phosphorylation and nuclear distribution of MUC1-C in KCs after treatment of CM of cancer cells with or without DMBT1 knockdown/overexpression. c ChIP-qPCR analysis of p65 binding to Ccl8 or Cd62l promoters in monocytes. d p65 phosphorylation and CCL8 expression of KCs cultured with DMBT1 -overexpressing MCF7 CM and/or JSH-23 (30 μM). e – g CD62L induction ( e ), Ccl8 and Cd62l expression ( f ) of KCs after treatment of LvM16 CM, with or without GO203, and the NET-inducing effects of the CM of such KCs ( g ). h – m GO203 treatment (15 mg/kg) of NOD-SCID mice with intrasplenic injection of MCF7 cells with DMBT1 overexpression. Shown are flow cytometry analysis of CD62L + KCs in livers ( h ), in vivo BLI ( i ), ex vivo BLI of livers ( j ), representative of BLI and metastases ( k ), NETosis in livers ( l ) and body weight changes of mice ( m ) at week 4 after cancer inoculation. n = 3 biological repeats ( c , e – g ), 7 ( h , i , m ), 6 ( l ) or 3 ( j ) mice. P values were obtained by two-tailed unpaired t -test (others). Scale bars, 50 μm. Data are shown as mean ± SD (others).

Techniques Used: Co-Immunoprecipitation Assay, Control, Phospho-proteomics, Knockdown, Over Expression, ChIP-qPCR, Binding Assay, Expressing, Cell Culture, Injection, Flow Cytometry, In Vivo, Ex Vivo, Two Tailed Test

a – d In vitro analysis of the DMBT1 neutralizing antibody clone 3H11. Shown are DMBT1–MUC1 interaction in KCs after 3H11 treatment ( a ), CD62L + polarization ( b ), Ccl8 expression of KCs treated with DMBT1-containing tumoral CM with or without treatment of 3H11 ( c ) and NETosis of neutrophils after treatment of CM of the above KCs ( d ). e – i 3H11 treatment (100 μg/mouse) of C57BL/6 mice after intrasplenic inoculation of Py8119 cells. Shown are CD62L + KC abundance ( e ), NETosis ( f , zoomed areas shown at bottom) in livers, in vivo BLI ( g ), ex vivo BLI of livers and representative images of metastases ( h ), and body weight changes of the mice ( i ). j Schematic model of the tumor–KC–neutrophil interaction in breast cancer liver metastasis (figure created with elements from Biorender.com). n = 3 biological repeats ( b – d ) or 6 mice ( e – i ). P values were obtained by repeated measures two-way ANOVA ( g ) or two-tailed unpaired t -test (others). Scale bars, 50 μm. Data are shown as mean ± SEM ( g ) or mean ± SD (others).
Figure Legend Snippet: a – d In vitro analysis of the DMBT1 neutralizing antibody clone 3H11. Shown are DMBT1–MUC1 interaction in KCs after 3H11 treatment ( a ), CD62L + polarization ( b ), Ccl8 expression of KCs treated with DMBT1-containing tumoral CM with or without treatment of 3H11 ( c ) and NETosis of neutrophils after treatment of CM of the above KCs ( d ). e – i 3H11 treatment (100 μg/mouse) of C57BL/6 mice after intrasplenic inoculation of Py8119 cells. Shown are CD62L + KC abundance ( e ), NETosis ( f , zoomed areas shown at bottom) in livers, in vivo BLI ( g ), ex vivo BLI of livers and representative images of metastases ( h ), and body weight changes of the mice ( i ). j Schematic model of the tumor–KC–neutrophil interaction in breast cancer liver metastasis (figure created with elements from Biorender.com). n = 3 biological repeats ( b – d ) or 6 mice ( e – i ). P values were obtained by repeated measures two-way ANOVA ( g ) or two-tailed unpaired t -test (others). Scale bars, 50 μm. Data are shown as mean ± SEM ( g ) or mean ± SD (others).

Techniques Used: In Vitro, Expressing, In Vivo, Ex Vivo, Two Tailed Test



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Image Search Results


a Heatmap of secreted protein-encoding genes differentially expressed in MDA-MB-231 vs LvM16. b Overall survival of breast cancer patients stratified by DMBT1 expression in the UNC cohort ( GSE3521 , GSE26338 ). c – e DMBT1 expression in human breast cancer of the Qilu cohort. Shown are tumoral DMBT1 mRNA levels ( c ) and serological DMBT1 protein levels ( d ) of those with liver-metastatic or non-metastatic primary tumors, and liver metastasis-free survival of patients stratified by tumoral DMBT1 expression ( e ). f DMBT1 mRNA and protein expression in MDA-MB-231 sublines. g – i CD62L induction ( g , h ) and Ccl8 expression ( i ) of KCs treated with CM of the indicated tumor cells with or without DMBT1 overexpression or knockdown. j NETosis of neutrophils cultured with CM from the KCs in i . n = 220 ( b ), 65 ( c , e ) and 22 ( d ) patients, and 3 biological repeats ( f – j ). P values were obtained by log-rank test ( b , e ) or two-tailed unpaired t -test (others). Data are shown as mean ± SD.

Journal: Cell Discovery

Article Title: Breast cancer induces CD62L + Kupffer cells via DMBT1 to promote neutrophil extracellular trap formation and liver metastasis

doi: 10.1038/s41421-025-00819-8

Figure Lengend Snippet: a Heatmap of secreted protein-encoding genes differentially expressed in MDA-MB-231 vs LvM16. b Overall survival of breast cancer patients stratified by DMBT1 expression in the UNC cohort ( GSE3521 , GSE26338 ). c – e DMBT1 expression in human breast cancer of the Qilu cohort. Shown are tumoral DMBT1 mRNA levels ( c ) and serological DMBT1 protein levels ( d ) of those with liver-metastatic or non-metastatic primary tumors, and liver metastasis-free survival of patients stratified by tumoral DMBT1 expression ( e ). f DMBT1 mRNA and protein expression in MDA-MB-231 sublines. g – i CD62L induction ( g , h ) and Ccl8 expression ( i ) of KCs treated with CM of the indicated tumor cells with or without DMBT1 overexpression or knockdown. j NETosis of neutrophils cultured with CM from the KCs in i . n = 220 ( b ), 65 ( c , e ) and 22 ( d ) patients, and 3 biological repeats ( f – j ). P values were obtained by log-rank test ( b , e ) or two-tailed unpaired t -test (others). Data are shown as mean ± SD.

Article Snippet: The recombinant proteins, neutralizing antibody and reagents used in vitro and in vivo assays are human DMBT1 (11678-H08H, SinoBiological), murine CCL8 (AF790-SP, R&D), SAA1 (CSB-EP020656M0a0, CUSABIO), SAA3 (CSB-YP361411M, CUSABIO), GO203 (1222186-26-6, MCE), DNase I (4536282001, ROCHE), anti-mouse Ly6G (BE0075-1, BioXcell), GSK484 (HY-100514, MCE), estradiol valerate (S3149, Selleck), JSH-23 (749886-87-1, MCE) and DMBT1 ELISA kits (EH1756, FineTest).

Techniques: Expressing, Over Expression, Knockdown, Cell Culture, Two Tailed Test

a – c In vivo BLI ( a ), ex vivo BLI ( b ) and NETosis ( c ) in livers of NOD-SCID mice treated with Clod after intrasplenic inoculation of MCF7 with or without DMBT1 overexpression. d–f In vivo BLI ( d ), ex vivo BLI ( e ) and NETosis ( f ) of NOD-SCID mice treated with GSK484 after intrasplenic inoculation of MCF7 with or without DMBT1 overexpression. g – j NETosis ( g ), CD62L + KCs ( h ) and in vivo BLI ( i ) of livers, and survival ( j ) of nude mice after intrasplenic injection of LvM16 cells with DMBT1 knockdown. k , l Primary tumor growth ( k ) and liver metastasis ( l ) in C57BL/6 mice after orthotopic injection of AT3 cells with Dmbt1 knockdown. n = 3 or 4 ( a , b ), 3 ( c , h , k , l ), 7 ( d , i , j ), 4 ( e , f , g ) mice per group. P values were obtained by repeated measures two-way ANOVA ( a , d , i , k ), Log rank test ( j ) or two-tailed unpaired t -test (others). Scale bars, 50 μm. Data are shown as mean ± SEM ( a, d, i, k ) or mean ± SD (others).

Journal: Cell Discovery

Article Title: Breast cancer induces CD62L + Kupffer cells via DMBT1 to promote neutrophil extracellular trap formation and liver metastasis

doi: 10.1038/s41421-025-00819-8

Figure Lengend Snippet: a – c In vivo BLI ( a ), ex vivo BLI ( b ) and NETosis ( c ) in livers of NOD-SCID mice treated with Clod after intrasplenic inoculation of MCF7 with or without DMBT1 overexpression. d–f In vivo BLI ( d ), ex vivo BLI ( e ) and NETosis ( f ) of NOD-SCID mice treated with GSK484 after intrasplenic inoculation of MCF7 with or without DMBT1 overexpression. g – j NETosis ( g ), CD62L + KCs ( h ) and in vivo BLI ( i ) of livers, and survival ( j ) of nude mice after intrasplenic injection of LvM16 cells with DMBT1 knockdown. k , l Primary tumor growth ( k ) and liver metastasis ( l ) in C57BL/6 mice after orthotopic injection of AT3 cells with Dmbt1 knockdown. n = 3 or 4 ( a , b ), 3 ( c , h , k , l ), 7 ( d , i , j ), 4 ( e , f , g ) mice per group. P values were obtained by repeated measures two-way ANOVA ( a , d , i , k ), Log rank test ( j ) or two-tailed unpaired t -test (others). Scale bars, 50 μm. Data are shown as mean ± SEM ( a, d, i, k ) or mean ± SD (others).

Article Snippet: The recombinant proteins, neutralizing antibody and reagents used in vitro and in vivo assays are human DMBT1 (11678-H08H, SinoBiological), murine CCL8 (AF790-SP, R&D), SAA1 (CSB-EP020656M0a0, CUSABIO), SAA3 (CSB-YP361411M, CUSABIO), GO203 (1222186-26-6, MCE), DNase I (4536282001, ROCHE), anti-mouse Ly6G (BE0075-1, BioXcell), GSK484 (HY-100514, MCE), estradiol valerate (S3149, Selleck), JSH-23 (749886-87-1, MCE) and DMBT1 ELISA kits (EH1756, FineTest).

Techniques: In Vivo, Ex Vivo, Over Expression, Injection, Knockdown, Two Tailed Test

a Co-IP assays for DMBT1 and MUC1-C in 293 T and HL60 cells. Ctrl, Ni-NTA bead control sample. b p65 phosphorylation and nuclear distribution of MUC1-C in KCs after treatment of CM of cancer cells with or without DMBT1 knockdown/overexpression. c ChIP-qPCR analysis of p65 binding to Ccl8 or Cd62l promoters in monocytes. d p65 phosphorylation and CCL8 expression of KCs cultured with DMBT1 -overexpressing MCF7 CM and/or JSH-23 (30 μM). e – g CD62L induction ( e ), Ccl8 and Cd62l expression ( f ) of KCs after treatment of LvM16 CM, with or without GO203, and the NET-inducing effects of the CM of such KCs ( g ). h – m GO203 treatment (15 mg/kg) of NOD-SCID mice with intrasplenic injection of MCF7 cells with DMBT1 overexpression. Shown are flow cytometry analysis of CD62L + KCs in livers ( h ), in vivo BLI ( i ), ex vivo BLI of livers ( j ), representative of BLI and metastases ( k ), NETosis in livers ( l ) and body weight changes of mice ( m ) at week 4 after cancer inoculation. n = 3 biological repeats ( c , e – g ), 7 ( h , i , m ), 6 ( l ) or 3 ( j ) mice. P values were obtained by two-tailed unpaired t -test (others). Scale bars, 50 μm. Data are shown as mean ± SD (others).

Journal: Cell Discovery

Article Title: Breast cancer induces CD62L + Kupffer cells via DMBT1 to promote neutrophil extracellular trap formation and liver metastasis

doi: 10.1038/s41421-025-00819-8

Figure Lengend Snippet: a Co-IP assays for DMBT1 and MUC1-C in 293 T and HL60 cells. Ctrl, Ni-NTA bead control sample. b p65 phosphorylation and nuclear distribution of MUC1-C in KCs after treatment of CM of cancer cells with or without DMBT1 knockdown/overexpression. c ChIP-qPCR analysis of p65 binding to Ccl8 or Cd62l promoters in monocytes. d p65 phosphorylation and CCL8 expression of KCs cultured with DMBT1 -overexpressing MCF7 CM and/or JSH-23 (30 μM). e – g CD62L induction ( e ), Ccl8 and Cd62l expression ( f ) of KCs after treatment of LvM16 CM, with or without GO203, and the NET-inducing effects of the CM of such KCs ( g ). h – m GO203 treatment (15 mg/kg) of NOD-SCID mice with intrasplenic injection of MCF7 cells with DMBT1 overexpression. Shown are flow cytometry analysis of CD62L + KCs in livers ( h ), in vivo BLI ( i ), ex vivo BLI of livers ( j ), representative of BLI and metastases ( k ), NETosis in livers ( l ) and body weight changes of mice ( m ) at week 4 after cancer inoculation. n = 3 biological repeats ( c , e – g ), 7 ( h , i , m ), 6 ( l ) or 3 ( j ) mice. P values were obtained by two-tailed unpaired t -test (others). Scale bars, 50 μm. Data are shown as mean ± SD (others).

Article Snippet: The recombinant proteins, neutralizing antibody and reagents used in vitro and in vivo assays are human DMBT1 (11678-H08H, SinoBiological), murine CCL8 (AF790-SP, R&D), SAA1 (CSB-EP020656M0a0, CUSABIO), SAA3 (CSB-YP361411M, CUSABIO), GO203 (1222186-26-6, MCE), DNase I (4536282001, ROCHE), anti-mouse Ly6G (BE0075-1, BioXcell), GSK484 (HY-100514, MCE), estradiol valerate (S3149, Selleck), JSH-23 (749886-87-1, MCE) and DMBT1 ELISA kits (EH1756, FineTest).

Techniques: Co-Immunoprecipitation Assay, Control, Phospho-proteomics, Knockdown, Over Expression, ChIP-qPCR, Binding Assay, Expressing, Cell Culture, Injection, Flow Cytometry, In Vivo, Ex Vivo, Two Tailed Test

a – d In vitro analysis of the DMBT1 neutralizing antibody clone 3H11. Shown are DMBT1–MUC1 interaction in KCs after 3H11 treatment ( a ), CD62L + polarization ( b ), Ccl8 expression of KCs treated with DMBT1-containing tumoral CM with or without treatment of 3H11 ( c ) and NETosis of neutrophils after treatment of CM of the above KCs ( d ). e – i 3H11 treatment (100 μg/mouse) of C57BL/6 mice after intrasplenic inoculation of Py8119 cells. Shown are CD62L + KC abundance ( e ), NETosis ( f , zoomed areas shown at bottom) in livers, in vivo BLI ( g ), ex vivo BLI of livers and representative images of metastases ( h ), and body weight changes of the mice ( i ). j Schematic model of the tumor–KC–neutrophil interaction in breast cancer liver metastasis (figure created with elements from Biorender.com). n = 3 biological repeats ( b – d ) or 6 mice ( e – i ). P values were obtained by repeated measures two-way ANOVA ( g ) or two-tailed unpaired t -test (others). Scale bars, 50 μm. Data are shown as mean ± SEM ( g ) or mean ± SD (others).

Journal: Cell Discovery

Article Title: Breast cancer induces CD62L + Kupffer cells via DMBT1 to promote neutrophil extracellular trap formation and liver metastasis

doi: 10.1038/s41421-025-00819-8

Figure Lengend Snippet: a – d In vitro analysis of the DMBT1 neutralizing antibody clone 3H11. Shown are DMBT1–MUC1 interaction in KCs after 3H11 treatment ( a ), CD62L + polarization ( b ), Ccl8 expression of KCs treated with DMBT1-containing tumoral CM with or without treatment of 3H11 ( c ) and NETosis of neutrophils after treatment of CM of the above KCs ( d ). e – i 3H11 treatment (100 μg/mouse) of C57BL/6 mice after intrasplenic inoculation of Py8119 cells. Shown are CD62L + KC abundance ( e ), NETosis ( f , zoomed areas shown at bottom) in livers, in vivo BLI ( g ), ex vivo BLI of livers and representative images of metastases ( h ), and body weight changes of the mice ( i ). j Schematic model of the tumor–KC–neutrophil interaction in breast cancer liver metastasis (figure created with elements from Biorender.com). n = 3 biological repeats ( b – d ) or 6 mice ( e – i ). P values were obtained by repeated measures two-way ANOVA ( g ) or two-tailed unpaired t -test (others). Scale bars, 50 μm. Data are shown as mean ± SEM ( g ) or mean ± SD (others).

Article Snippet: The recombinant proteins, neutralizing antibody and reagents used in vitro and in vivo assays are human DMBT1 (11678-H08H, SinoBiological), murine CCL8 (AF790-SP, R&D), SAA1 (CSB-EP020656M0a0, CUSABIO), SAA3 (CSB-YP361411M, CUSABIO), GO203 (1222186-26-6, MCE), DNase I (4536282001, ROCHE), anti-mouse Ly6G (BE0075-1, BioXcell), GSK484 (HY-100514, MCE), estradiol valerate (S3149, Selleck), JSH-23 (749886-87-1, MCE) and DMBT1 ELISA kits (EH1756, FineTest).

Techniques: In Vitro, Expressing, In Vivo, Ex Vivo, Two Tailed Test

a Heatmap of secreted protein-encoding genes differentially expressed in MDA-MB-231 vs LvM16. b Overall survival of breast cancer patients stratified by DMBT1 expression in the UNC cohort ( GSE3521 , GSE26338 ). c – e DMBT1 expression in human breast cancer of the Qilu cohort. Shown are tumoral DMBT1 mRNA levels ( c ) and serological DMBT1 protein levels ( d ) of those with liver-metastatic or non-metastatic primary tumors, and liver metastasis-free survival of patients stratified by tumoral DMBT1 expression ( e ). f DMBT1 mRNA and protein expression in MDA-MB-231 sublines. g – i CD62L induction ( g , h ) and Ccl8 expression ( i ) of KCs treated with CM of the indicated tumor cells with or without DMBT1 overexpression or knockdown. j NETosis of neutrophils cultured with CM from the KCs in i . n = 220 ( b ), 65 ( c , e ) and 22 ( d ) patients, and 3 biological repeats ( f – j ). P values were obtained by log-rank test ( b , e ) or two-tailed unpaired t -test (others). Data are shown as mean ± SD.

Journal: Cell Discovery

Article Title: Breast cancer induces CD62L + Kupffer cells via DMBT1 to promote neutrophil extracellular trap formation and liver metastasis

doi: 10.1038/s41421-025-00819-8

Figure Lengend Snippet: a Heatmap of secreted protein-encoding genes differentially expressed in MDA-MB-231 vs LvM16. b Overall survival of breast cancer patients stratified by DMBT1 expression in the UNC cohort ( GSE3521 , GSE26338 ). c – e DMBT1 expression in human breast cancer of the Qilu cohort. Shown are tumoral DMBT1 mRNA levels ( c ) and serological DMBT1 protein levels ( d ) of those with liver-metastatic or non-metastatic primary tumors, and liver metastasis-free survival of patients stratified by tumoral DMBT1 expression ( e ). f DMBT1 mRNA and protein expression in MDA-MB-231 sublines. g – i CD62L induction ( g , h ) and Ccl8 expression ( i ) of KCs treated with CM of the indicated tumor cells with or without DMBT1 overexpression or knockdown. j NETosis of neutrophils cultured with CM from the KCs in i . n = 220 ( b ), 65 ( c , e ) and 22 ( d ) patients, and 3 biological repeats ( f – j ). P values were obtained by log-rank test ( b , e ) or two-tailed unpaired t -test (others). Data are shown as mean ± SD.

Article Snippet: The antibodies used for western blotting and IF were as follows: GAPDH (G9545, Sigma), β-actin (A2228, Sigma), DMBT1 (27069-1-AP, Proteintech), Ly6G (551459, BD Pharmingen), MUC1-C (ab109185, ABCAM), p-Erk1/2 (4370, CST), Erk1/2 (9102, CST), GST-Tag (2625, CST), His-Tag (12698, CST), acetyl-histone H3 (06-599, Merck), CD62L (244495, ABCAM), p65 (sc-372, Santa Cruz), p-p65 (3033, CST), polyclonal GFP antibody (ab6673, ABCAM), CD68 (213363, ABCAM), Ci-H3 (ab5103, ABCAM), MPO (AF3667, R&D), Pan-CK (sc-8018, Santa Cruz), CLEC4F (PA5-47396, R&D), CD45 beads (130-052-301, Milteny), Debris Removal Solution (130-109-398, Milteny), Alexa Fluor 488 donkey anti-rabbit IgG (A-21206, Invitrogen), Alexa Fluor 555 donkey anti- mouse IgG ( A31570 , Invitrogen), Alexa Fluor 555 Donkey anti-goat IgG (A21432, Invitrogen), Alexa Fluor 647 goat anti-mouse IgG (405322, Invitrogen), HRP-conjugated goat anti-mouse IgG (401215, Merck/Millipore), HRP-conjugated goat anti-rabbit IgG (401315, Merck /Millipore).

Techniques: Expressing, Over Expression, Knockdown, Cell Culture, Two Tailed Test

a – c In vivo BLI ( a ), ex vivo BLI ( b ) and NETosis ( c ) in livers of NOD-SCID mice treated with Clod after intrasplenic inoculation of MCF7 with or without DMBT1 overexpression. d–f In vivo BLI ( d ), ex vivo BLI ( e ) and NETosis ( f ) of NOD-SCID mice treated with GSK484 after intrasplenic inoculation of MCF7 with or without DMBT1 overexpression. g – j NETosis ( g ), CD62L + KCs ( h ) and in vivo BLI ( i ) of livers, and survival ( j ) of nude mice after intrasplenic injection of LvM16 cells with DMBT1 knockdown. k , l Primary tumor growth ( k ) and liver metastasis ( l ) in C57BL/6 mice after orthotopic injection of AT3 cells with Dmbt1 knockdown. n = 3 or 4 ( a , b ), 3 ( c , h , k , l ), 7 ( d , i , j ), 4 ( e , f , g ) mice per group. P values were obtained by repeated measures two-way ANOVA ( a , d , i , k ), Log rank test ( j ) or two-tailed unpaired t -test (others). Scale bars, 50 μm. Data are shown as mean ± SEM ( a, d, i, k ) or mean ± SD (others).

Journal: Cell Discovery

Article Title: Breast cancer induces CD62L + Kupffer cells via DMBT1 to promote neutrophil extracellular trap formation and liver metastasis

doi: 10.1038/s41421-025-00819-8

Figure Lengend Snippet: a – c In vivo BLI ( a ), ex vivo BLI ( b ) and NETosis ( c ) in livers of NOD-SCID mice treated with Clod after intrasplenic inoculation of MCF7 with or without DMBT1 overexpression. d–f In vivo BLI ( d ), ex vivo BLI ( e ) and NETosis ( f ) of NOD-SCID mice treated with GSK484 after intrasplenic inoculation of MCF7 with or without DMBT1 overexpression. g – j NETosis ( g ), CD62L + KCs ( h ) and in vivo BLI ( i ) of livers, and survival ( j ) of nude mice after intrasplenic injection of LvM16 cells with DMBT1 knockdown. k , l Primary tumor growth ( k ) and liver metastasis ( l ) in C57BL/6 mice after orthotopic injection of AT3 cells with Dmbt1 knockdown. n = 3 or 4 ( a , b ), 3 ( c , h , k , l ), 7 ( d , i , j ), 4 ( e , f , g ) mice per group. P values were obtained by repeated measures two-way ANOVA ( a , d , i , k ), Log rank test ( j ) or two-tailed unpaired t -test (others). Scale bars, 50 μm. Data are shown as mean ± SEM ( a, d, i, k ) or mean ± SD (others).

Article Snippet: The antibodies used for western blotting and IF were as follows: GAPDH (G9545, Sigma), β-actin (A2228, Sigma), DMBT1 (27069-1-AP, Proteintech), Ly6G (551459, BD Pharmingen), MUC1-C (ab109185, ABCAM), p-Erk1/2 (4370, CST), Erk1/2 (9102, CST), GST-Tag (2625, CST), His-Tag (12698, CST), acetyl-histone H3 (06-599, Merck), CD62L (244495, ABCAM), p65 (sc-372, Santa Cruz), p-p65 (3033, CST), polyclonal GFP antibody (ab6673, ABCAM), CD68 (213363, ABCAM), Ci-H3 (ab5103, ABCAM), MPO (AF3667, R&D), Pan-CK (sc-8018, Santa Cruz), CLEC4F (PA5-47396, R&D), CD45 beads (130-052-301, Milteny), Debris Removal Solution (130-109-398, Milteny), Alexa Fluor 488 donkey anti-rabbit IgG (A-21206, Invitrogen), Alexa Fluor 555 donkey anti- mouse IgG ( A31570 , Invitrogen), Alexa Fluor 555 Donkey anti-goat IgG (A21432, Invitrogen), Alexa Fluor 647 goat anti-mouse IgG (405322, Invitrogen), HRP-conjugated goat anti-mouse IgG (401215, Merck/Millipore), HRP-conjugated goat anti-rabbit IgG (401315, Merck /Millipore).

Techniques: In Vivo, Ex Vivo, Over Expression, Injection, Knockdown, Two Tailed Test

a Co-IP assays for DMBT1 and MUC1-C in 293 T and HL60 cells. Ctrl, Ni-NTA bead control sample. b p65 phosphorylation and nuclear distribution of MUC1-C in KCs after treatment of CM of cancer cells with or without DMBT1 knockdown/overexpression. c ChIP-qPCR analysis of p65 binding to Ccl8 or Cd62l promoters in monocytes. d p65 phosphorylation and CCL8 expression of KCs cultured with DMBT1 -overexpressing MCF7 CM and/or JSH-23 (30 μM). e – g CD62L induction ( e ), Ccl8 and Cd62l expression ( f ) of KCs after treatment of LvM16 CM, with or without GO203, and the NET-inducing effects of the CM of such KCs ( g ). h – m GO203 treatment (15 mg/kg) of NOD-SCID mice with intrasplenic injection of MCF7 cells with DMBT1 overexpression. Shown are flow cytometry analysis of CD62L + KCs in livers ( h ), in vivo BLI ( i ), ex vivo BLI of livers ( j ), representative of BLI and metastases ( k ), NETosis in livers ( l ) and body weight changes of mice ( m ) at week 4 after cancer inoculation. n = 3 biological repeats ( c , e – g ), 7 ( h , i , m ), 6 ( l ) or 3 ( j ) mice. P values were obtained by two-tailed unpaired t -test (others). Scale bars, 50 μm. Data are shown as mean ± SD (others).

Journal: Cell Discovery

Article Title: Breast cancer induces CD62L + Kupffer cells via DMBT1 to promote neutrophil extracellular trap formation and liver metastasis

doi: 10.1038/s41421-025-00819-8

Figure Lengend Snippet: a Co-IP assays for DMBT1 and MUC1-C in 293 T and HL60 cells. Ctrl, Ni-NTA bead control sample. b p65 phosphorylation and nuclear distribution of MUC1-C in KCs after treatment of CM of cancer cells with or without DMBT1 knockdown/overexpression. c ChIP-qPCR analysis of p65 binding to Ccl8 or Cd62l promoters in monocytes. d p65 phosphorylation and CCL8 expression of KCs cultured with DMBT1 -overexpressing MCF7 CM and/or JSH-23 (30 μM). e – g CD62L induction ( e ), Ccl8 and Cd62l expression ( f ) of KCs after treatment of LvM16 CM, with or without GO203, and the NET-inducing effects of the CM of such KCs ( g ). h – m GO203 treatment (15 mg/kg) of NOD-SCID mice with intrasplenic injection of MCF7 cells with DMBT1 overexpression. Shown are flow cytometry analysis of CD62L + KCs in livers ( h ), in vivo BLI ( i ), ex vivo BLI of livers ( j ), representative of BLI and metastases ( k ), NETosis in livers ( l ) and body weight changes of mice ( m ) at week 4 after cancer inoculation. n = 3 biological repeats ( c , e – g ), 7 ( h , i , m ), 6 ( l ) or 3 ( j ) mice. P values were obtained by two-tailed unpaired t -test (others). Scale bars, 50 μm. Data are shown as mean ± SD (others).

Article Snippet: The antibodies used for western blotting and IF were as follows: GAPDH (G9545, Sigma), β-actin (A2228, Sigma), DMBT1 (27069-1-AP, Proteintech), Ly6G (551459, BD Pharmingen), MUC1-C (ab109185, ABCAM), p-Erk1/2 (4370, CST), Erk1/2 (9102, CST), GST-Tag (2625, CST), His-Tag (12698, CST), acetyl-histone H3 (06-599, Merck), CD62L (244495, ABCAM), p65 (sc-372, Santa Cruz), p-p65 (3033, CST), polyclonal GFP antibody (ab6673, ABCAM), CD68 (213363, ABCAM), Ci-H3 (ab5103, ABCAM), MPO (AF3667, R&D), Pan-CK (sc-8018, Santa Cruz), CLEC4F (PA5-47396, R&D), CD45 beads (130-052-301, Milteny), Debris Removal Solution (130-109-398, Milteny), Alexa Fluor 488 donkey anti-rabbit IgG (A-21206, Invitrogen), Alexa Fluor 555 donkey anti- mouse IgG ( A31570 , Invitrogen), Alexa Fluor 555 Donkey anti-goat IgG (A21432, Invitrogen), Alexa Fluor 647 goat anti-mouse IgG (405322, Invitrogen), HRP-conjugated goat anti-mouse IgG (401215, Merck/Millipore), HRP-conjugated goat anti-rabbit IgG (401315, Merck /Millipore).

Techniques: Co-Immunoprecipitation Assay, Control, Phospho-proteomics, Knockdown, Over Expression, ChIP-qPCR, Binding Assay, Expressing, Cell Culture, Injection, Flow Cytometry, In Vivo, Ex Vivo, Two Tailed Test

a – d In vitro analysis of the DMBT1 neutralizing antibody clone 3H11. Shown are DMBT1–MUC1 interaction in KCs after 3H11 treatment ( a ), CD62L + polarization ( b ), Ccl8 expression of KCs treated with DMBT1-containing tumoral CM with or without treatment of 3H11 ( c ) and NETosis of neutrophils after treatment of CM of the above KCs ( d ). e – i 3H11 treatment (100 μg/mouse) of C57BL/6 mice after intrasplenic inoculation of Py8119 cells. Shown are CD62L + KC abundance ( e ), NETosis ( f , zoomed areas shown at bottom) in livers, in vivo BLI ( g ), ex vivo BLI of livers and representative images of metastases ( h ), and body weight changes of the mice ( i ). j Schematic model of the tumor–KC–neutrophil interaction in breast cancer liver metastasis (figure created with elements from Biorender.com). n = 3 biological repeats ( b – d ) or 6 mice ( e – i ). P values were obtained by repeated measures two-way ANOVA ( g ) or two-tailed unpaired t -test (others). Scale bars, 50 μm. Data are shown as mean ± SEM ( g ) or mean ± SD (others).

Journal: Cell Discovery

Article Title: Breast cancer induces CD62L + Kupffer cells via DMBT1 to promote neutrophil extracellular trap formation and liver metastasis

doi: 10.1038/s41421-025-00819-8

Figure Lengend Snippet: a – d In vitro analysis of the DMBT1 neutralizing antibody clone 3H11. Shown are DMBT1–MUC1 interaction in KCs after 3H11 treatment ( a ), CD62L + polarization ( b ), Ccl8 expression of KCs treated with DMBT1-containing tumoral CM with or without treatment of 3H11 ( c ) and NETosis of neutrophils after treatment of CM of the above KCs ( d ). e – i 3H11 treatment (100 μg/mouse) of C57BL/6 mice after intrasplenic inoculation of Py8119 cells. Shown are CD62L + KC abundance ( e ), NETosis ( f , zoomed areas shown at bottom) in livers, in vivo BLI ( g ), ex vivo BLI of livers and representative images of metastases ( h ), and body weight changes of the mice ( i ). j Schematic model of the tumor–KC–neutrophil interaction in breast cancer liver metastasis (figure created with elements from Biorender.com). n = 3 biological repeats ( b – d ) or 6 mice ( e – i ). P values were obtained by repeated measures two-way ANOVA ( g ) or two-tailed unpaired t -test (others). Scale bars, 50 μm. Data are shown as mean ± SEM ( g ) or mean ± SD (others).

Article Snippet: The antibodies used for western blotting and IF were as follows: GAPDH (G9545, Sigma), β-actin (A2228, Sigma), DMBT1 (27069-1-AP, Proteintech), Ly6G (551459, BD Pharmingen), MUC1-C (ab109185, ABCAM), p-Erk1/2 (4370, CST), Erk1/2 (9102, CST), GST-Tag (2625, CST), His-Tag (12698, CST), acetyl-histone H3 (06-599, Merck), CD62L (244495, ABCAM), p65 (sc-372, Santa Cruz), p-p65 (3033, CST), polyclonal GFP antibody (ab6673, ABCAM), CD68 (213363, ABCAM), Ci-H3 (ab5103, ABCAM), MPO (AF3667, R&D), Pan-CK (sc-8018, Santa Cruz), CLEC4F (PA5-47396, R&D), CD45 beads (130-052-301, Milteny), Debris Removal Solution (130-109-398, Milteny), Alexa Fluor 488 donkey anti-rabbit IgG (A-21206, Invitrogen), Alexa Fluor 555 donkey anti- mouse IgG ( A31570 , Invitrogen), Alexa Fluor 555 Donkey anti-goat IgG (A21432, Invitrogen), Alexa Fluor 647 goat anti-mouse IgG (405322, Invitrogen), HRP-conjugated goat anti-mouse IgG (401215, Merck/Millipore), HRP-conjugated goat anti-rabbit IgG (401315, Merck /Millipore).

Techniques: In Vitro, Expressing, In Vivo, Ex Vivo, Two Tailed Test

(A) Flow cytometry staining of cell lines over-expressing DMBT1. (B) Western blot of 293T and 293T-ACE2KO using anti-ACE2 mAb. Cell lines over-expressing DMBT1 were analyzed using anti-DMBT1 pAb. (C) Luminescence values (RLU) of 293T and 293T-ACE2KO over-expressing DMBT1 cells infected with VLP (MOI=0.03). (D) Relative infection changes of 293T and 293T-ACE2KO cells over-expressing DMBT1. Data were representative of three independent experiments. *, P<0.05; Statistic significance was assessed by one-way ANOVA.

Journal: bioRxiv

Article Title: DMBT1 promotes SARS-CoV-2 infection and its SRCR-derived peptide inhibits SARS-CoV-2 infection

doi: 10.1101/2025.03.06.641801

Figure Lengend Snippet: (A) Flow cytometry staining of cell lines over-expressing DMBT1. (B) Western blot of 293T and 293T-ACE2KO using anti-ACE2 mAb. Cell lines over-expressing DMBT1 were analyzed using anti-DMBT1 pAb. (C) Luminescence values (RLU) of 293T and 293T-ACE2KO over-expressing DMBT1 cells infected with VLP (MOI=0.03). (D) Relative infection changes of 293T and 293T-ACE2KO cells over-expressing DMBT1. Data were representative of three independent experiments. *, P<0.05; Statistic significance was assessed by one-way ANOVA.

Article Snippet: The DMBT1 protein was detected by using a rabbit polyclonal antibody (Sino Biological, China) at a dilution of 1:1000 and a rabbit polymer detection system (ZSGB-BIO, China).

Techniques: Flow Cytometry, Staining, Expressing, Western Blot, Infection

(A) RNA expression of DMBT1 in airway epithelial cell on violin plot from scRNA-seq/snRNA-seq. (B) Section of human trachea stained with the anti-DMBT1 Rabbit Polyclonal antibody. Scale bar = 200 μm. DMBT1 expression was upregulated in ACE2+ AT2 cells of COVID group. (C) RNA expression of DMBT1 in airway epithelial cell of COVID (left blue bars) and control (right red bars) group on violin plot. (D) RNA expression of DMBT1 in ACE2-AT2 cells (left blue bars) and ACE2+ cells (right red bars) on violin plot.

Journal: bioRxiv

Article Title: DMBT1 promotes SARS-CoV-2 infection and its SRCR-derived peptide inhibits SARS-CoV-2 infection

doi: 10.1101/2025.03.06.641801

Figure Lengend Snippet: (A) RNA expression of DMBT1 in airway epithelial cell on violin plot from scRNA-seq/snRNA-seq. (B) Section of human trachea stained with the anti-DMBT1 Rabbit Polyclonal antibody. Scale bar = 200 μm. DMBT1 expression was upregulated in ACE2+ AT2 cells of COVID group. (C) RNA expression of DMBT1 in airway epithelial cell of COVID (left blue bars) and control (right red bars) group on violin plot. (D) RNA expression of DMBT1 in ACE2-AT2 cells (left blue bars) and ACE2+ cells (right red bars) on violin plot.

Article Snippet: The DMBT1 protein was detected by using a rabbit polyclonal antibody (Sino Biological, China) at a dilution of 1:1000 and a rabbit polymer detection system (ZSGB-BIO, China).

Techniques: RNA Expression, Staining, Expressing, Control

(A) Schematic diagram of DMBT1 protein structure. Full length amino acid sequence of SRCR domain of DMBT1 and overlapping peptide library of SRCR domain. (B) Infection rate at SARS-CoV-2 virus with MOI at 3. (C) Infection rate at SARS-CoV-2 virus with MOI at 0.6. (D) Inhibition of peptide of SARS-CoV-2 pseudovirus infection. (E-G) IC50 values were determined using logistic regression analysis. Relative change rate was calculated based on comparison to DMSO control. (E) 293T-DMBT1 was infected by SARS-CoV-2 original strain (SH01) after peptide treatment. Virus incubated with peptide 7 in a 1:2 gradient dilution from 800 μg/mL, and then added to cells. Detection of viral infection by immunofluorescence at 48 hpi. (F) 293T-DMBT1 was infected by SARS-CoV-2 Delta pseudovirus after peptide treatment. (G) HeLa and A549 cells were infected by SARS-CoV-2 pseudovirus 3 strains after peptide treatment. (F, G) Pseudovirus (MOI=5) was incubated with peptide 7 in a 1:2 gradient dilution from 100 μM, and then added to cells. Intracellular Fluc activity of cell lysates was determined at 48 hpi.

Journal: bioRxiv

Article Title: DMBT1 promotes SARS-CoV-2 infection and its SRCR-derived peptide inhibits SARS-CoV-2 infection

doi: 10.1101/2025.03.06.641801

Figure Lengend Snippet: (A) Schematic diagram of DMBT1 protein structure. Full length amino acid sequence of SRCR domain of DMBT1 and overlapping peptide library of SRCR domain. (B) Infection rate at SARS-CoV-2 virus with MOI at 3. (C) Infection rate at SARS-CoV-2 virus with MOI at 0.6. (D) Inhibition of peptide of SARS-CoV-2 pseudovirus infection. (E-G) IC50 values were determined using logistic regression analysis. Relative change rate was calculated based on comparison to DMSO control. (E) 293T-DMBT1 was infected by SARS-CoV-2 original strain (SH01) after peptide treatment. Virus incubated with peptide 7 in a 1:2 gradient dilution from 800 μg/mL, and then added to cells. Detection of viral infection by immunofluorescence at 48 hpi. (F) 293T-DMBT1 was infected by SARS-CoV-2 Delta pseudovirus after peptide treatment. (G) HeLa and A549 cells were infected by SARS-CoV-2 pseudovirus 3 strains after peptide treatment. (F, G) Pseudovirus (MOI=5) was incubated with peptide 7 in a 1:2 gradient dilution from 100 μM, and then added to cells. Intracellular Fluc activity of cell lysates was determined at 48 hpi.

Article Snippet: The DMBT1 protein was detected by using a rabbit polyclonal antibody (Sino Biological, China) at a dilution of 1:1000 and a rabbit polymer detection system (ZSGB-BIO, China).

Techniques: Sequencing, Infection, Virus, Inhibition, Comparison, Control, Incubation, Immunofluorescence, Activity Assay

(A) Flow cytometry staining of cell lines over-expressing DMBT1. (B) Western blot of 293T and 293T-ACE2KO using anti-ACE2 mAb. Cell lines over-expressing DMBT1 were analyzed using anti-DMBT1 pAb. (C) Luminescence values (RLU) of 293T and 293T-ACE2KO over-expressing DMBT1 cells infected with VLP (MOI=0.03). (D) Relative infection changes of 293T and 293T-ACE2KO cells over-expressing DMBT1. Data were representative of three independent experiments. *, P<0.05; Statistic significance was assessed by one-way ANOVA.

Journal: bioRxiv

Article Title: DMBT1 promotes SARS-CoV-2 infection and its SRCR-derived peptide inhibits SARS-CoV-2 infection

doi: 10.1101/2025.03.06.641801

Figure Lengend Snippet: (A) Flow cytometry staining of cell lines over-expressing DMBT1. (B) Western blot of 293T and 293T-ACE2KO using anti-ACE2 mAb. Cell lines over-expressing DMBT1 were analyzed using anti-DMBT1 pAb. (C) Luminescence values (RLU) of 293T and 293T-ACE2KO over-expressing DMBT1 cells infected with VLP (MOI=0.03). (D) Relative infection changes of 293T and 293T-ACE2KO cells over-expressing DMBT1. Data were representative of three independent experiments. *, P<0.05; Statistic significance was assessed by one-way ANOVA.

Article Snippet: Incubation with Anti-DMBT1 rabbit pAb (Sino Biological, China) and anti-ACE2 rabbit mAb (ABclonal, China) was performed overnight at 4°C.

Techniques: Flow Cytometry, Staining, Expressing, Western Blot, Infection

(A) RNA expression of DMBT1 in airway epithelial cell on violin plot from scRNA-seq/snRNA-seq. (B) Section of human trachea stained with the anti-DMBT1 Rabbit Polyclonal antibody. Scale bar = 200 μm. DMBT1 expression was upregulated in ACE2+ AT2 cells of COVID group. (C) RNA expression of DMBT1 in airway epithelial cell of COVID (left blue bars) and control (right red bars) group on violin plot. (D) RNA expression of DMBT1 in ACE2-AT2 cells (left blue bars) and ACE2+ cells (right red bars) on violin plot.

Journal: bioRxiv

Article Title: DMBT1 promotes SARS-CoV-2 infection and its SRCR-derived peptide inhibits SARS-CoV-2 infection

doi: 10.1101/2025.03.06.641801

Figure Lengend Snippet: (A) RNA expression of DMBT1 in airway epithelial cell on violin plot from scRNA-seq/snRNA-seq. (B) Section of human trachea stained with the anti-DMBT1 Rabbit Polyclonal antibody. Scale bar = 200 μm. DMBT1 expression was upregulated in ACE2+ AT2 cells of COVID group. (C) RNA expression of DMBT1 in airway epithelial cell of COVID (left blue bars) and control (right red bars) group on violin plot. (D) RNA expression of DMBT1 in ACE2-AT2 cells (left blue bars) and ACE2+ cells (right red bars) on violin plot.

Article Snippet: Incubation with Anti-DMBT1 rabbit pAb (Sino Biological, China) and anti-ACE2 rabbit mAb (ABclonal, China) was performed overnight at 4°C.

Techniques: RNA Expression, Staining, Expressing, Control

(A) Schematic diagram of DMBT1 protein structure. Full length amino acid sequence of SRCR domain of DMBT1 and overlapping peptide library of SRCR domain. (B) Infection rate at SARS-CoV-2 virus with MOI at 3. (C) Infection rate at SARS-CoV-2 virus with MOI at 0.6. (D) Inhibition of peptide of SARS-CoV-2 pseudovirus infection. (E-G) IC50 values were determined using logistic regression analysis. Relative change rate was calculated based on comparison to DMSO control. (E) 293T-DMBT1 was infected by SARS-CoV-2 original strain (SH01) after peptide treatment. Virus incubated with peptide 7 in a 1:2 gradient dilution from 800 μg/mL, and then added to cells. Detection of viral infection by immunofluorescence at 48 hpi. (F) 293T-DMBT1 was infected by SARS-CoV-2 Delta pseudovirus after peptide treatment. (G) HeLa and A549 cells were infected by SARS-CoV-2 pseudovirus 3 strains after peptide treatment. (F, G) Pseudovirus (MOI=5) was incubated with peptide 7 in a 1:2 gradient dilution from 100 μM, and then added to cells. Intracellular Fluc activity of cell lysates was determined at 48 hpi.

Journal: bioRxiv

Article Title: DMBT1 promotes SARS-CoV-2 infection and its SRCR-derived peptide inhibits SARS-CoV-2 infection

doi: 10.1101/2025.03.06.641801

Figure Lengend Snippet: (A) Schematic diagram of DMBT1 protein structure. Full length amino acid sequence of SRCR domain of DMBT1 and overlapping peptide library of SRCR domain. (B) Infection rate at SARS-CoV-2 virus with MOI at 3. (C) Infection rate at SARS-CoV-2 virus with MOI at 0.6. (D) Inhibition of peptide of SARS-CoV-2 pseudovirus infection. (E-G) IC50 values were determined using logistic regression analysis. Relative change rate was calculated based on comparison to DMSO control. (E) 293T-DMBT1 was infected by SARS-CoV-2 original strain (SH01) after peptide treatment. Virus incubated with peptide 7 in a 1:2 gradient dilution from 800 μg/mL, and then added to cells. Detection of viral infection by immunofluorescence at 48 hpi. (F) 293T-DMBT1 was infected by SARS-CoV-2 Delta pseudovirus after peptide treatment. (G) HeLa and A549 cells were infected by SARS-CoV-2 pseudovirus 3 strains after peptide treatment. (F, G) Pseudovirus (MOI=5) was incubated with peptide 7 in a 1:2 gradient dilution from 100 μM, and then added to cells. Intracellular Fluc activity of cell lysates was determined at 48 hpi.

Article Snippet: Incubation with Anti-DMBT1 rabbit pAb (Sino Biological, China) and anti-ACE2 rabbit mAb (ABclonal, China) was performed overnight at 4°C.

Techniques: Sequencing, Infection, Virus, Inhibition, Comparison, Control, Incubation, Immunofluorescence, Activity Assay

(A) RNA expression of DMBT1 in airway epithelial cell on violin plot from scRNA-seq/snRNA-seq. (B) Section of human trachea stained with the anti-DMBT1 Rabbit Polyclonal antibody. Scale bar = 200 μm. DMBT1 expression was upregulated in ACE2+ AT2 cells of COVID group. (C) RNA expression of DMBT1 in airway epithelial cell of COVID (left blue bars) and control (right red bars) group on violin plot. (D) RNA expression of DMBT1 in ACE2-AT2 cells (left blue bars) and ACE2+ cells (right red bars) on violin plot.

Journal: bioRxiv

Article Title: DMBT1 promotes SARS-CoV-2 infection and its SRCR-derived peptide inhibits SARS-CoV-2 infection

doi: 10.1101/2025.03.06.641801

Figure Lengend Snippet: (A) RNA expression of DMBT1 in airway epithelial cell on violin plot from scRNA-seq/snRNA-seq. (B) Section of human trachea stained with the anti-DMBT1 Rabbit Polyclonal antibody. Scale bar = 200 μm. DMBT1 expression was upregulated in ACE2+ AT2 cells of COVID group. (C) RNA expression of DMBT1 in airway epithelial cell of COVID (left blue bars) and control (right red bars) group on violin plot. (D) RNA expression of DMBT1 in ACE2-AT2 cells (left blue bars) and ACE2+ cells (right red bars) on violin plot.

Article Snippet: The DMBT1 protein was detected by using a rabbit polyclonal antibody (Sino Biological, China) at a dilution of 1:1000 and a rabbit polymer detection system (ZSGB-BIO, China).

Techniques: RNA Expression, Staining, Expressing, Control

(A) Flow cytometry staining of cell lines over-expressing DMBT1. (B) Western blot of 293T and 293T-ACE2KO using anti-ACE2 mAb. Cell lines over-expressing DMBT1 were analyzed using anti-DMBT1 pAb. (C) Luminescence values (RLU) of 293T and 293T-ACE2KO over-expressing DMBT1 cells infected with VLP (MOI=0.03). (D) Relative infection changes of 293T and 293T-ACE2KO cells over-expressing DMBT1. Data were representative of three independent experiments. *, P<0.05; Statistic significance was assessed by one-way ANOVA.

Journal: bioRxiv

Article Title: DMBT1 promotes SARS-CoV-2 infection and its SRCR-derived peptide inhibits SARS-CoV-2 infection

doi: 10.1101/2025.03.06.641801

Figure Lengend Snippet: (A) Flow cytometry staining of cell lines over-expressing DMBT1. (B) Western blot of 293T and 293T-ACE2KO using anti-ACE2 mAb. Cell lines over-expressing DMBT1 were analyzed using anti-DMBT1 pAb. (C) Luminescence values (RLU) of 293T and 293T-ACE2KO over-expressing DMBT1 cells infected with VLP (MOI=0.03). (D) Relative infection changes of 293T and 293T-ACE2KO cells over-expressing DMBT1. Data were representative of three independent experiments. *, P<0.05; Statistic significance was assessed by one-way ANOVA.

Article Snippet: Full length cDNA of DMBT1 gene was purchased from R&D systems, USA (RDC3108).

Techniques: Flow Cytometry, Staining, Expressing, Western Blot, Infection

(A) RNA expression of DMBT1 in airway epithelial cell on violin plot from scRNA-seq/snRNA-seq. (B) Section of human trachea stained with the anti-DMBT1 Rabbit Polyclonal antibody. Scale bar = 200 μm. DMBT1 expression was upregulated in ACE2+ AT2 cells of COVID group. (C) RNA expression of DMBT1 in airway epithelial cell of COVID (left blue bars) and control (right red bars) group on violin plot. (D) RNA expression of DMBT1 in ACE2-AT2 cells (left blue bars) and ACE2+ cells (right red bars) on violin plot.

Journal: bioRxiv

Article Title: DMBT1 promotes SARS-CoV-2 infection and its SRCR-derived peptide inhibits SARS-CoV-2 infection

doi: 10.1101/2025.03.06.641801

Figure Lengend Snippet: (A) RNA expression of DMBT1 in airway epithelial cell on violin plot from scRNA-seq/snRNA-seq. (B) Section of human trachea stained with the anti-DMBT1 Rabbit Polyclonal antibody. Scale bar = 200 μm. DMBT1 expression was upregulated in ACE2+ AT2 cells of COVID group. (C) RNA expression of DMBT1 in airway epithelial cell of COVID (left blue bars) and control (right red bars) group on violin plot. (D) RNA expression of DMBT1 in ACE2-AT2 cells (left blue bars) and ACE2+ cells (right red bars) on violin plot.

Article Snippet: Full length cDNA of DMBT1 gene was purchased from R&D systems, USA (RDC3108).

Techniques: RNA Expression, Staining, Expressing, Control

(A) Schematic diagram of DMBT1 protein structure. Full length amino acid sequence of SRCR domain of DMBT1 and overlapping peptide library of SRCR domain. (B) Infection rate at SARS-CoV-2 virus with MOI at 3. (C) Infection rate at SARS-CoV-2 virus with MOI at 0.6. (D) Inhibition of peptide of SARS-CoV-2 pseudovirus infection. (E-G) IC50 values were determined using logistic regression analysis. Relative change rate was calculated based on comparison to DMSO control. (E) 293T-DMBT1 was infected by SARS-CoV-2 original strain (SH01) after peptide treatment. Virus incubated with peptide 7 in a 1:2 gradient dilution from 800 μg/mL, and then added to cells. Detection of viral infection by immunofluorescence at 48 hpi. (F) 293T-DMBT1 was infected by SARS-CoV-2 Delta pseudovirus after peptide treatment. (G) HeLa and A549 cells were infected by SARS-CoV-2 pseudovirus 3 strains after peptide treatment. (F, G) Pseudovirus (MOI=5) was incubated with peptide 7 in a 1:2 gradient dilution from 100 μM, and then added to cells. Intracellular Fluc activity of cell lysates was determined at 48 hpi.

Journal: bioRxiv

Article Title: DMBT1 promotes SARS-CoV-2 infection and its SRCR-derived peptide inhibits SARS-CoV-2 infection

doi: 10.1101/2025.03.06.641801

Figure Lengend Snippet: (A) Schematic diagram of DMBT1 protein structure. Full length amino acid sequence of SRCR domain of DMBT1 and overlapping peptide library of SRCR domain. (B) Infection rate at SARS-CoV-2 virus with MOI at 3. (C) Infection rate at SARS-CoV-2 virus with MOI at 0.6. (D) Inhibition of peptide of SARS-CoV-2 pseudovirus infection. (E-G) IC50 values were determined using logistic regression analysis. Relative change rate was calculated based on comparison to DMSO control. (E) 293T-DMBT1 was infected by SARS-CoV-2 original strain (SH01) after peptide treatment. Virus incubated with peptide 7 in a 1:2 gradient dilution from 800 μg/mL, and then added to cells. Detection of viral infection by immunofluorescence at 48 hpi. (F) 293T-DMBT1 was infected by SARS-CoV-2 Delta pseudovirus after peptide treatment. (G) HeLa and A549 cells were infected by SARS-CoV-2 pseudovirus 3 strains after peptide treatment. (F, G) Pseudovirus (MOI=5) was incubated with peptide 7 in a 1:2 gradient dilution from 100 μM, and then added to cells. Intracellular Fluc activity of cell lysates was determined at 48 hpi.

Article Snippet: Full length cDNA of DMBT1 gene was purchased from R&D systems, USA (RDC3108).

Techniques: Sequencing, Infection, Virus, Inhibition, Comparison, Control, Incubation, Immunofluorescence, Activity Assay