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mouse anti il 17a mab  (Sino Biological)


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    Structured Review

    Sino Biological mouse anti il 17a mab
    SDS-PAGE and Western blot analysis of <t>hScFv-IL-17A</t> proteins expressed in various E. coli strains. (a) SDS-PAGE of insoluble fractions; (b) SDS-PAGE of soluble fractions; (c) Western blot of insoluble fractions; (d) Western blot of soluble fractions. Lane 1: M (molecular weight marker); Lanes 2–4: hScFv-IL-17A-WT expressed in E. coli Origami B (DE3), SHuffle, and BL21 (DE3) with DisCoTune, respectively; Lanes 5–7: hScFv-IL-17A-C97S expressed in the same strains; Lane 8: purified hScFv M6-1B9 (positive control). Western blot detection was performed using an anti-His tag antibody. The arrow indicates the expected size of hScFv-IL-17A (∼28 kDa). Estimated amounts of hScFv-IL-17A are labeled. < LOD indicates signals below the limit of detection.
    Mouse Anti Il 17a Mab, supplied by Sino Biological, used in various techniques. Bioz Stars score: 93/100, based on 3 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
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    1) Product Images from "Comparative evaluation of E. coli expression systems for soluble hScFv-IL-17A with an unpaired CDR-L3 cysteine"

    Article Title: Comparative evaluation of E. coli expression systems for soluble hScFv-IL-17A with an unpaired CDR-L3 cysteine

    Journal: Journal of Genetic Engineering & Biotechnology

    doi: 10.1016/j.jgeb.2025.100613

    SDS-PAGE and Western blot analysis of hScFv-IL-17A proteins expressed in various E. coli strains. (a) SDS-PAGE of insoluble fractions; (b) SDS-PAGE of soluble fractions; (c) Western blot of insoluble fractions; (d) Western blot of soluble fractions. Lane 1: M (molecular weight marker); Lanes 2–4: hScFv-IL-17A-WT expressed in E. coli Origami B (DE3), SHuffle, and BL21 (DE3) with DisCoTune, respectively; Lanes 5–7: hScFv-IL-17A-C97S expressed in the same strains; Lane 8: purified hScFv M6-1B9 (positive control). Western blot detection was performed using an anti-His tag antibody. The arrow indicates the expected size of hScFv-IL-17A (∼28 kDa). Estimated amounts of hScFv-IL-17A are labeled. < LOD indicates signals below the limit of detection.
    Figure Legend Snippet: SDS-PAGE and Western blot analysis of hScFv-IL-17A proteins expressed in various E. coli strains. (a) SDS-PAGE of insoluble fractions; (b) SDS-PAGE of soluble fractions; (c) Western blot of insoluble fractions; (d) Western blot of soluble fractions. Lane 1: M (molecular weight marker); Lanes 2–4: hScFv-IL-17A-WT expressed in E. coli Origami B (DE3), SHuffle, and BL21 (DE3) with DisCoTune, respectively; Lanes 5–7: hScFv-IL-17A-C97S expressed in the same strains; Lane 8: purified hScFv M6-1B9 (positive control). Western blot detection was performed using an anti-His tag antibody. The arrow indicates the expected size of hScFv-IL-17A (∼28 kDa). Estimated amounts of hScFv-IL-17A are labeled. < LOD indicates signals below the limit of detection.

    Techniques Used: SDS Page, Western Blot, Molecular Weight, Marker, Purification, Positive Control, Labeling

    The expression efficiency of soluble hScFv-IL-17A-WT (orange) and hScFv-IL-17A-C97S (green) in different expression systems: (WT/Ori and C97S/Ori) from Origami B (DE3); (WT/SHuffle and C97S/SHuffle) from SHuffle; and (WT/BL21Dc and C97S/BL21Dc) from BL21 (DE3) with DisCoTune. Data represent mean ± SD from three independent biological replicates. (For interpretation of the references to colour in this figure legend, the reader is referred to the web version of this article.)
    Figure Legend Snippet: The expression efficiency of soluble hScFv-IL-17A-WT (orange) and hScFv-IL-17A-C97S (green) in different expression systems: (WT/Ori and C97S/Ori) from Origami B (DE3); (WT/SHuffle and C97S/SHuffle) from SHuffle; and (WT/BL21Dc and C97S/BL21Dc) from BL21 (DE3) with DisCoTune. Data represent mean ± SD from three independent biological replicates. (For interpretation of the references to colour in this figure legend, the reader is referred to the web version of this article.)

    Techniques Used: Expressing

    Indirect ELISA of hScFv-IL-17A binding to hIL-17A using an avidin–biotin system. Purified hScFv-IL-17A-WT and hScFv-IL-17A-C97S were tested at 1 and 5 µg/mL, expressed from SHuffle (WT/SHuffle-1, WT/SHuffle-5; C97S/SHuffle-1, C97S/SHuffle-5; light/dark green) and BL21 (DE3) with DisCoTune (WT/BL21Dc-1, WT/BL21Dc-5; C97S/BL21Dc-1, C97S/BL21Dc-5; light/dark orange). An IL-17A mAb (dark grey) was used as a positive control. Data represent mean ± SD from three independent biological replicates. Statistical analysis was determined by unpaired two-tailed Student’s t -test. Significance levels are denoted as: ** p < 0.01, *** p < 0.001, **** p < 0.0001. (For interpretation of the references to colour in this figure legend, the reader is referred to the web version of this article.)
    Figure Legend Snippet: Indirect ELISA of hScFv-IL-17A binding to hIL-17A using an avidin–biotin system. Purified hScFv-IL-17A-WT and hScFv-IL-17A-C97S were tested at 1 and 5 µg/mL, expressed from SHuffle (WT/SHuffle-1, WT/SHuffle-5; C97S/SHuffle-1, C97S/SHuffle-5; light/dark green) and BL21 (DE3) with DisCoTune (WT/BL21Dc-1, WT/BL21Dc-5; C97S/BL21Dc-1, C97S/BL21Dc-5; light/dark orange). An IL-17A mAb (dark grey) was used as a positive control. Data represent mean ± SD from three independent biological replicates. Statistical analysis was determined by unpaired two-tailed Student’s t -test. Significance levels are denoted as: ** p < 0.01, *** p < 0.001, **** p < 0.0001. (For interpretation of the references to colour in this figure legend, the reader is referred to the web version of this article.)

    Techniques Used: Indirect ELISA, Binding Assay, Avidin-Biotin Assay, Purification, Positive Control, Two Tailed Test

    Binding assessment of hScFv-IL-17A-WT (a) and hScFv-IL-17A-C97S (b) from BL21 (DE3) with DisCoTune by competitive ELISA. Various concentrations (0.1, 1, and 2 µg/mL) of IL-17A mAb (neutralizing antibody) were tested in competition with hScFv-IL-17A. WT was used at 1 µg/mL, whereas C97S was used at 5 µg/mL to compensate for its reduced binding activity observed in indirect ELISA. An anti-IFN-γ mAb (clone B27) was used as an irrelevant antibody control. Data represent mean ± SD from three independent biological replicates.
    Figure Legend Snippet: Binding assessment of hScFv-IL-17A-WT (a) and hScFv-IL-17A-C97S (b) from BL21 (DE3) with DisCoTune by competitive ELISA. Various concentrations (0.1, 1, and 2 µg/mL) of IL-17A mAb (neutralizing antibody) were tested in competition with hScFv-IL-17A. WT was used at 1 µg/mL, whereas C97S was used at 5 µg/mL to compensate for its reduced binding activity observed in indirect ELISA. An anti-IFN-γ mAb (clone B27) was used as an irrelevant antibody control. Data represent mean ± SD from three independent biological replicates.

    Techniques Used: Binding Assay, Competitive ELISA, Activity Assay, Indirect ELISA, Control

    Structural alignment of hScFv-IL-17A-WT and hScFvIL-17A-C97S. The predicted structures were generated using ABodyBuilder2. The conformational structures of hScFv-IL-17A-WT and hScFv-IL-17A-C97S were compared using UCSF ChimeraX software. The red ribbon indicates hScFv-IL-17A-WT structure, and the gold ribbon indicates hScFv-IL-17A-C97S structure. (For interpretation of the references to colour in this figure legend, the reader is referred to the web version of this article.)
    Figure Legend Snippet: Structural alignment of hScFv-IL-17A-WT and hScFvIL-17A-C97S. The predicted structures were generated using ABodyBuilder2. The conformational structures of hScFv-IL-17A-WT and hScFv-IL-17A-C97S were compared using UCSF ChimeraX software. The red ribbon indicates hScFv-IL-17A-WT structure, and the gold ribbon indicates hScFv-IL-17A-C97S structure. (For interpretation of the references to colour in this figure legend, the reader is referred to the web version of this article.)

    Techniques Used: Generated, Software

    Related Articles

    Purification:

    Article Title: Comparative evaluation of E. coli expression systems for soluble hScFv-IL-17A with an unpaired CDR-L3 cysteine
    Article Snippet: After washing, non-specific binding was blocked with a blocking solution (2 % Bovine serum albumin (BSA) in PBS with 0.05 % tween 20) for 1 h, and 50 μL of biotinylated-hIL-17A (1 μg/mL) (Sino Biological, Beijing, China) was added and incubated for 1 h at room temperature (RT). .. After washing, purified hScFv-IL-17A-WT and hScFv-IL-17A-C97S (1 and 5 μg/mL) were added and incubated for 1 h. In this experiment, mouse anti-IL-17A mAb (neutralizing antibody mAb clone M237, Sino Biological, Beijing, China) (Cat.12047-M237) (1 μg/mL, 50 μL), which recognizes hIL-17A, was used as a positive control. ..

    Article Title: Comparative evaluation of E. coli expression systems for soluble hScFv-IL-17A with an unpaired CDR-L3 cysteine
    Article Snippet: After washing, non-specific binding was blocked with a blocking solution (2 % Bovine serum albumin (BSA) in PBS with 0.05 % tween 20) for 1 h, and 50 μL of biotinylated-hIL-17A (1 μg/mL) (Sino Biological, Beijing, China) was added and incubated for 1 h at room temperature (RT). .. After washing, purified hScFv-IL-17A-WT and hScFvIL-17A-C97S (1 and 5 μg/mL) were added and incubated for 1 h. In this experiment, mouse anti-IL-17A mAb (neutralizing antibody mAb clone M237, Sino Biological, Beijing, China) (Cat.12047-M237) (1 μg/mL, 50 μL), which recognizes hIL-17A, was used as a positive control. ..

    Incubation:

    Article Title: Comparative evaluation of E. coli expression systems for soluble hScFv-IL-17A with an unpaired CDR-L3 cysteine
    Article Snippet: After washing, non-specific binding was blocked with a blocking solution (2 % Bovine serum albumin (BSA) in PBS with 0.05 % tween 20) for 1 h, and 50 μL of biotinylated-hIL-17A (1 μg/mL) (Sino Biological, Beijing, China) was added and incubated for 1 h at room temperature (RT). .. After washing, purified hScFv-IL-17A-WT and hScFv-IL-17A-C97S (1 and 5 μg/mL) were added and incubated for 1 h. In this experiment, mouse anti-IL-17A mAb (neutralizing antibody mAb clone M237, Sino Biological, Beijing, China) (Cat.12047-M237) (1 μg/mL, 50 μL), which recognizes hIL-17A, was used as a positive control. ..

    Article Title: Comparative evaluation of E. coli expression systems for soluble hScFv-IL-17A with an unpaired CDR-L3 cysteine
    Article Snippet: After washing, non-specific binding was blocked with a blocking solution (2 % Bovine serum albumin (BSA) in PBS with 0.05 % tween 20) for 1 h, and 50 μL of biotinylated-hIL-17A (1 μg/mL) (Sino Biological, Beijing, China) was added and incubated for 1 h at room temperature (RT). .. After washing, purified hScFv-IL-17A-WT and hScFvIL-17A-C97S (1 and 5 μg/mL) were added and incubated for 1 h. In this experiment, mouse anti-IL-17A mAb (neutralizing antibody mAb clone M237, Sino Biological, Beijing, China) (Cat.12047-M237) (1 μg/mL, 50 μL), which recognizes hIL-17A, was used as a positive control. ..

    Positive Control:

    Article Title: Comparative evaluation of E. coli expression systems for soluble hScFv-IL-17A with an unpaired CDR-L3 cysteine
    Article Snippet: After washing, non-specific binding was blocked with a blocking solution (2 % Bovine serum albumin (BSA) in PBS with 0.05 % tween 20) for 1 h, and 50 μL of biotinylated-hIL-17A (1 μg/mL) (Sino Biological, Beijing, China) was added and incubated for 1 h at room temperature (RT). .. After washing, purified hScFv-IL-17A-WT and hScFv-IL-17A-C97S (1 and 5 μg/mL) were added and incubated for 1 h. In this experiment, mouse anti-IL-17A mAb (neutralizing antibody mAb clone M237, Sino Biological, Beijing, China) (Cat.12047-M237) (1 μg/mL, 50 μL), which recognizes hIL-17A, was used as a positive control. ..

    Article Title: Comparative evaluation of E. coli expression systems for soluble hScFv-IL-17A with an unpaired CDR-L3 cysteine
    Article Snippet: After washing, non-specific binding was blocked with a blocking solution (2 % Bovine serum albumin (BSA) in PBS with 0.05 % tween 20) for 1 h, and 50 μL of biotinylated-hIL-17A (1 μg/mL) (Sino Biological, Beijing, China) was added and incubated for 1 h at room temperature (RT). .. After washing, purified hScFv-IL-17A-WT and hScFvIL-17A-C97S (1 and 5 μg/mL) were added and incubated for 1 h. In this experiment, mouse anti-IL-17A mAb (neutralizing antibody mAb clone M237, Sino Biological, Beijing, China) (Cat.12047-M237) (1 μg/mL, 50 μL), which recognizes hIL-17A, was used as a positive control. ..



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    Image Search Results


    SDS-PAGE and Western blot analysis of hScFv-IL-17A proteins expressed in various E. coli strains. (a) SDS-PAGE of insoluble fractions; (b) SDS-PAGE of soluble fractions; (c) Western blot of insoluble fractions; (d) Western blot of soluble fractions. Lane 1: M (molecular weight marker); Lanes 2–4: hScFv-IL-17A-WT expressed in E. coli Origami B (DE3), SHuffle, and BL21 (DE3) with DisCoTune, respectively; Lanes 5–7: hScFv-IL-17A-C97S expressed in the same strains; Lane 8: purified hScFv M6-1B9 (positive control). Western blot detection was performed using an anti-His tag antibody. The arrow indicates the expected size of hScFv-IL-17A (∼28 kDa). Estimated amounts of hScFv-IL-17A are labeled. < LOD indicates signals below the limit of detection.

    Journal: Journal of Genetic Engineering & Biotechnology

    Article Title: Comparative evaluation of E. coli expression systems for soluble hScFv-IL-17A with an unpaired CDR-L3 cysteine

    doi: 10.1016/j.jgeb.2025.100613

    Figure Lengend Snippet: SDS-PAGE and Western blot analysis of hScFv-IL-17A proteins expressed in various E. coli strains. (a) SDS-PAGE of insoluble fractions; (b) SDS-PAGE of soluble fractions; (c) Western blot of insoluble fractions; (d) Western blot of soluble fractions. Lane 1: M (molecular weight marker); Lanes 2–4: hScFv-IL-17A-WT expressed in E. coli Origami B (DE3), SHuffle, and BL21 (DE3) with DisCoTune, respectively; Lanes 5–7: hScFv-IL-17A-C97S expressed in the same strains; Lane 8: purified hScFv M6-1B9 (positive control). Western blot detection was performed using an anti-His tag antibody. The arrow indicates the expected size of hScFv-IL-17A (∼28 kDa). Estimated amounts of hScFv-IL-17A are labeled. < LOD indicates signals below the limit of detection.

    Article Snippet: After washing, purified hScFv-IL-17A-WT and hScFv-IL-17A-C97S (1 and 5 μg/mL) were added and incubated for 1 h. In this experiment, mouse anti-IL-17A mAb (neutralizing antibody mAb clone M237, Sino Biological, Beijing, China) (Cat.12047-M237) (1 μg/mL, 50 μL), which recognizes hIL-17A, was used as a positive control.

    Techniques: SDS Page, Western Blot, Molecular Weight, Marker, Purification, Positive Control, Labeling

    The expression efficiency of soluble hScFv-IL-17A-WT (orange) and hScFv-IL-17A-C97S (green) in different expression systems: (WT/Ori and C97S/Ori) from Origami B (DE3); (WT/SHuffle and C97S/SHuffle) from SHuffle; and (WT/BL21Dc and C97S/BL21Dc) from BL21 (DE3) with DisCoTune. Data represent mean ± SD from three independent biological replicates. (For interpretation of the references to colour in this figure legend, the reader is referred to the web version of this article.)

    Journal: Journal of Genetic Engineering & Biotechnology

    Article Title: Comparative evaluation of E. coli expression systems for soluble hScFv-IL-17A with an unpaired CDR-L3 cysteine

    doi: 10.1016/j.jgeb.2025.100613

    Figure Lengend Snippet: The expression efficiency of soluble hScFv-IL-17A-WT (orange) and hScFv-IL-17A-C97S (green) in different expression systems: (WT/Ori and C97S/Ori) from Origami B (DE3); (WT/SHuffle and C97S/SHuffle) from SHuffle; and (WT/BL21Dc and C97S/BL21Dc) from BL21 (DE3) with DisCoTune. Data represent mean ± SD from three independent biological replicates. (For interpretation of the references to colour in this figure legend, the reader is referred to the web version of this article.)

    Article Snippet: After washing, purified hScFv-IL-17A-WT and hScFv-IL-17A-C97S (1 and 5 μg/mL) were added and incubated for 1 h. In this experiment, mouse anti-IL-17A mAb (neutralizing antibody mAb clone M237, Sino Biological, Beijing, China) (Cat.12047-M237) (1 μg/mL, 50 μL), which recognizes hIL-17A, was used as a positive control.

    Techniques: Expressing

    Indirect ELISA of hScFv-IL-17A binding to hIL-17A using an avidin–biotin system. Purified hScFv-IL-17A-WT and hScFv-IL-17A-C97S were tested at 1 and 5 µg/mL, expressed from SHuffle (WT/SHuffle-1, WT/SHuffle-5; C97S/SHuffle-1, C97S/SHuffle-5; light/dark green) and BL21 (DE3) with DisCoTune (WT/BL21Dc-1, WT/BL21Dc-5; C97S/BL21Dc-1, C97S/BL21Dc-5; light/dark orange). An IL-17A mAb (dark grey) was used as a positive control. Data represent mean ± SD from three independent biological replicates. Statistical analysis was determined by unpaired two-tailed Student’s t -test. Significance levels are denoted as: ** p < 0.01, *** p < 0.001, **** p < 0.0001. (For interpretation of the references to colour in this figure legend, the reader is referred to the web version of this article.)

    Journal: Journal of Genetic Engineering & Biotechnology

    Article Title: Comparative evaluation of E. coli expression systems for soluble hScFv-IL-17A with an unpaired CDR-L3 cysteine

    doi: 10.1016/j.jgeb.2025.100613

    Figure Lengend Snippet: Indirect ELISA of hScFv-IL-17A binding to hIL-17A using an avidin–biotin system. Purified hScFv-IL-17A-WT and hScFv-IL-17A-C97S were tested at 1 and 5 µg/mL, expressed from SHuffle (WT/SHuffle-1, WT/SHuffle-5; C97S/SHuffle-1, C97S/SHuffle-5; light/dark green) and BL21 (DE3) with DisCoTune (WT/BL21Dc-1, WT/BL21Dc-5; C97S/BL21Dc-1, C97S/BL21Dc-5; light/dark orange). An IL-17A mAb (dark grey) was used as a positive control. Data represent mean ± SD from three independent biological replicates. Statistical analysis was determined by unpaired two-tailed Student’s t -test. Significance levels are denoted as: ** p < 0.01, *** p < 0.001, **** p < 0.0001. (For interpretation of the references to colour in this figure legend, the reader is referred to the web version of this article.)

    Article Snippet: After washing, purified hScFv-IL-17A-WT and hScFv-IL-17A-C97S (1 and 5 μg/mL) were added and incubated for 1 h. In this experiment, mouse anti-IL-17A mAb (neutralizing antibody mAb clone M237, Sino Biological, Beijing, China) (Cat.12047-M237) (1 μg/mL, 50 μL), which recognizes hIL-17A, was used as a positive control.

    Techniques: Indirect ELISA, Binding Assay, Avidin-Biotin Assay, Purification, Positive Control, Two Tailed Test

    Binding assessment of hScFv-IL-17A-WT (a) and hScFv-IL-17A-C97S (b) from BL21 (DE3) with DisCoTune by competitive ELISA. Various concentrations (0.1, 1, and 2 µg/mL) of IL-17A mAb (neutralizing antibody) were tested in competition with hScFv-IL-17A. WT was used at 1 µg/mL, whereas C97S was used at 5 µg/mL to compensate for its reduced binding activity observed in indirect ELISA. An anti-IFN-γ mAb (clone B27) was used as an irrelevant antibody control. Data represent mean ± SD from three independent biological replicates.

    Journal: Journal of Genetic Engineering & Biotechnology

    Article Title: Comparative evaluation of E. coli expression systems for soluble hScFv-IL-17A with an unpaired CDR-L3 cysteine

    doi: 10.1016/j.jgeb.2025.100613

    Figure Lengend Snippet: Binding assessment of hScFv-IL-17A-WT (a) and hScFv-IL-17A-C97S (b) from BL21 (DE3) with DisCoTune by competitive ELISA. Various concentrations (0.1, 1, and 2 µg/mL) of IL-17A mAb (neutralizing antibody) were tested in competition with hScFv-IL-17A. WT was used at 1 µg/mL, whereas C97S was used at 5 µg/mL to compensate for its reduced binding activity observed in indirect ELISA. An anti-IFN-γ mAb (clone B27) was used as an irrelevant antibody control. Data represent mean ± SD from three independent biological replicates.

    Article Snippet: After washing, purified hScFv-IL-17A-WT and hScFv-IL-17A-C97S (1 and 5 μg/mL) were added and incubated for 1 h. In this experiment, mouse anti-IL-17A mAb (neutralizing antibody mAb clone M237, Sino Biological, Beijing, China) (Cat.12047-M237) (1 μg/mL, 50 μL), which recognizes hIL-17A, was used as a positive control.

    Techniques: Binding Assay, Competitive ELISA, Activity Assay, Indirect ELISA, Control

    Structural alignment of hScFv-IL-17A-WT and hScFvIL-17A-C97S. The predicted structures were generated using ABodyBuilder2. The conformational structures of hScFv-IL-17A-WT and hScFv-IL-17A-C97S were compared using UCSF ChimeraX software. The red ribbon indicates hScFv-IL-17A-WT structure, and the gold ribbon indicates hScFv-IL-17A-C97S structure. (For interpretation of the references to colour in this figure legend, the reader is referred to the web version of this article.)

    Journal: Journal of Genetic Engineering & Biotechnology

    Article Title: Comparative evaluation of E. coli expression systems for soluble hScFv-IL-17A with an unpaired CDR-L3 cysteine

    doi: 10.1016/j.jgeb.2025.100613

    Figure Lengend Snippet: Structural alignment of hScFv-IL-17A-WT and hScFvIL-17A-C97S. The predicted structures were generated using ABodyBuilder2. The conformational structures of hScFv-IL-17A-WT and hScFv-IL-17A-C97S were compared using UCSF ChimeraX software. The red ribbon indicates hScFv-IL-17A-WT structure, and the gold ribbon indicates hScFv-IL-17A-C97S structure. (For interpretation of the references to colour in this figure legend, the reader is referred to the web version of this article.)

    Article Snippet: After washing, purified hScFv-IL-17A-WT and hScFv-IL-17A-C97S (1 and 5 μg/mL) were added and incubated for 1 h. In this experiment, mouse anti-IL-17A mAb (neutralizing antibody mAb clone M237, Sino Biological, Beijing, China) (Cat.12047-M237) (1 μg/mL, 50 μL), which recognizes hIL-17A, was used as a positive control.

    Techniques: Generated, Software

    ( A ) Schematic depicting the experimental paradigm for ABX-treated APPPS1-21 male mice. ( B ) Th17 cell percentages by flow cytometry in LILN, SILN, and spleen in VHL- and ABX-treated APPPS1-21 mice. ( C ) IL-17 levels in the media of CD3/CD28 bead–restimulated T cells derived from the LILN, SILN, and spleen from VHL- and ABX-treated APPPS1-21 mice. ( D ) Schematic depicting the experimental paradigm for propionate-treated APPPS1-21 and NTG male mice. ( E ) Representative flow cytometry plot depicting a reduction in Th17 cells in the plasma of propionate-treated APPPS1-21 mice. Quantification of Th17 cell percentages by flow cytometry in the plasma of VHL- and propionate-treated ( F ) APPPS1-21 and ( G ) NTG mice. Quantification of IL-17 levels via ELISA in the large intestine of VHL- and ABX-treated ( H ) APPPS1-21 and ( I ) NTG mice. Quantification of IL-17 levels was done via ELISA in the plasma of VHL- and ABX-treated ( J ) APPPS1-21 and ( K ) NTG mice. ( L ) Pearson’s correlation analysis between LILN Th17 cells and LI IL-17 levels in VHL- and ABX-treated APPPS1-21 mice. ( M ) Pearson’s correlation analysis between plasma IL-17 and LI IL-17 levels in VHL- and ABX-treated APPPS1-21 mice. Quantification of IL-17 levels was done via ELISA in the large intestine of VHL- and propionate-treated ( N ) APPPS1-21 and ( O ) NTG mice. Pearson’s correlation analysis between GFAP + astrocyte percentage area and LI IL-17 levels in ( P ) VHL- and ABX-treated APPPS1-21 mice and ( Q ) VHL- and propionate-treated APPPS1-21 mice. Data are expressed as the mean ± SD. n = 5–14/group. * P ≤ 0.05, by 2-tailed, unpaired Student’s t test. Males are denoted by triangles and females by circles.

    Journal: The Journal of Clinical Investigation

    Article Title: The gut microbiome controls reactive astrocytosis during A β amyloidosis via propionate-mediated regulation of IL-17

    doi: 10.1172/JCI180826

    Figure Lengend Snippet: ( A ) Schematic depicting the experimental paradigm for ABX-treated APPPS1-21 male mice. ( B ) Th17 cell percentages by flow cytometry in LILN, SILN, and spleen in VHL- and ABX-treated APPPS1-21 mice. ( C ) IL-17 levels in the media of CD3/CD28 bead–restimulated T cells derived from the LILN, SILN, and spleen from VHL- and ABX-treated APPPS1-21 mice. ( D ) Schematic depicting the experimental paradigm for propionate-treated APPPS1-21 and NTG male mice. ( E ) Representative flow cytometry plot depicting a reduction in Th17 cells in the plasma of propionate-treated APPPS1-21 mice. Quantification of Th17 cell percentages by flow cytometry in the plasma of VHL- and propionate-treated ( F ) APPPS1-21 and ( G ) NTG mice. Quantification of IL-17 levels via ELISA in the large intestine of VHL- and ABX-treated ( H ) APPPS1-21 and ( I ) NTG mice. Quantification of IL-17 levels was done via ELISA in the plasma of VHL- and ABX-treated ( J ) APPPS1-21 and ( K ) NTG mice. ( L ) Pearson’s correlation analysis between LILN Th17 cells and LI IL-17 levels in VHL- and ABX-treated APPPS1-21 mice. ( M ) Pearson’s correlation analysis between plasma IL-17 and LI IL-17 levels in VHL- and ABX-treated APPPS1-21 mice. Quantification of IL-17 levels was done via ELISA in the large intestine of VHL- and propionate-treated ( N ) APPPS1-21 and ( O ) NTG mice. Pearson’s correlation analysis between GFAP + astrocyte percentage area and LI IL-17 levels in ( P ) VHL- and ABX-treated APPPS1-21 mice and ( Q ) VHL- and propionate-treated APPPS1-21 mice. Data are expressed as the mean ± SD. n = 5–14/group. * P ≤ 0.05, by 2-tailed, unpaired Student’s t test. Males are denoted by triangles and females by circles.

    Article Snippet: In addition, both saline- and propionate-treated mice received anti–mouse IL-17A mAb (BE0173, Bio X Cell) every third day at a dose of 10 mg/kg from 1 month to 3 months of age, similar to previous studies ( – ).

    Techniques: Flow Cytometry, Derivative Assay, Clinical Proteomics, Enzyme-linked Immunosorbent Assay

    ( A ) Schematic depicting the experimental paradigm. ( B ) Plasma IL-17 levels in APPPS1-21 male and female mice treated with saline plus IgG, saline plus IL-17 mAb, or propionate plus IL-17 mAb. ( C ) LI levels of IL-17 in saline plus IgG, saline plus IL-17 mAb, and propionate plus IL-17 mAb groups. ( D and E ) Representative images of GFAP + astrocytes and Aβ plaques in saline plus IgG, saline plus IL-17 mAb, and propionate plus IL-17 mAB groups. Scale bars: 1,000 μm (original magnification, ×10; D ) and 100 μm (original magnification, ×40; E ). Quantification of the percentage of areas of ( F ) GFAP + astrocytes, ( G ) Aβ plaques, and ( H ) PAAs in the saline plus IgG, saline plus IL-17 mAb, and propionate plus IL-17 mAb groups. ( I ) Pearson’s correlation analysis between the area percentages of GFAP + astrocytes and Aβ plaques. Data are expressed as the mean ± SD. n = 6–12/group. Four sections were used per animal. * P ≤ 0.05, ** P ≤ 0.01, *** P ≤ 0.001, and **** P ≤ 0.0001, by 2-way ANOVA. Males are denoted by triangles and females by circles. Dotted lines indicate the area of cortex analyzed.

    Journal: The Journal of Clinical Investigation

    Article Title: The gut microbiome controls reactive astrocytosis during A β amyloidosis via propionate-mediated regulation of IL-17

    doi: 10.1172/JCI180826

    Figure Lengend Snippet: ( A ) Schematic depicting the experimental paradigm. ( B ) Plasma IL-17 levels in APPPS1-21 male and female mice treated with saline plus IgG, saline plus IL-17 mAb, or propionate plus IL-17 mAb. ( C ) LI levels of IL-17 in saline plus IgG, saline plus IL-17 mAb, and propionate plus IL-17 mAb groups. ( D and E ) Representative images of GFAP + astrocytes and Aβ plaques in saline plus IgG, saline plus IL-17 mAb, and propionate plus IL-17 mAB groups. Scale bars: 1,000 μm (original magnification, ×10; D ) and 100 μm (original magnification, ×40; E ). Quantification of the percentage of areas of ( F ) GFAP + astrocytes, ( G ) Aβ plaques, and ( H ) PAAs in the saline plus IgG, saline plus IL-17 mAb, and propionate plus IL-17 mAb groups. ( I ) Pearson’s correlation analysis between the area percentages of GFAP + astrocytes and Aβ plaques. Data are expressed as the mean ± SD. n = 6–12/group. Four sections were used per animal. * P ≤ 0.05, ** P ≤ 0.01, *** P ≤ 0.001, and **** P ≤ 0.0001, by 2-way ANOVA. Males are denoted by triangles and females by circles. Dotted lines indicate the area of cortex analyzed.

    Article Snippet: In addition, both saline- and propionate-treated mice received anti–mouse IL-17A mAb (BE0173, Bio X Cell) every third day at a dose of 10 mg/kg from 1 month to 3 months of age, similar to previous studies ( – ).

    Techniques: Clinical Proteomics, Saline

    ABX reshape gut microbial composition (i.e., increased Akkermansia ), which leads to changes in the levels of gut-derived metabolites, such as an increase in propionate. Propionate reduces peripheral Th17 cells and IL-17 production in the periphery, which likely leads to lower concentrations of IL-17 in the CNS. Since IL-17 activates astrocytes, which may compromise their ability to phagocytose Aβ plaques, lower IL-17 levels reduce reactive astrocytes and decrease Aβ plaques. The propionate-induced reduction is dependent on IL-17 signaling.

    Journal: The Journal of Clinical Investigation

    Article Title: The gut microbiome controls reactive astrocytosis during A β amyloidosis via propionate-mediated regulation of IL-17

    doi: 10.1172/JCI180826

    Figure Lengend Snippet: ABX reshape gut microbial composition (i.e., increased Akkermansia ), which leads to changes in the levels of gut-derived metabolites, such as an increase in propionate. Propionate reduces peripheral Th17 cells and IL-17 production in the periphery, which likely leads to lower concentrations of IL-17 in the CNS. Since IL-17 activates astrocytes, which may compromise their ability to phagocytose Aβ plaques, lower IL-17 levels reduce reactive astrocytes and decrease Aβ plaques. The propionate-induced reduction is dependent on IL-17 signaling.

    Article Snippet: In addition, both saline- and propionate-treated mice received anti–mouse IL-17A mAb (BE0173, Bio X Cell) every third day at a dose of 10 mg/kg from 1 month to 3 months of age, similar to previous studies ( – ).

    Techniques: Derivative Assay