antibodies targeting acan  (Proteintech)

Journal: Bioactive Materials

Article Title: An intelligent nanoliposome alleviates disc degeneration and discogenic pain by inhibiting neurovascular ingrowth via a “Soil-conditioning, seed-modulating, and weeds-suppressing” strategy

doi: 10.1016/j.bioactmat.2025.11.048

Figure Lengend Snippet: Screening and validation of potential compounds for IVDD. (A) An intersection analysis of four compound libraries (Neuronal Signaling Library, FDA-approved Library, Natural Products Library, and Angiogenesis-Related Library) identified five potential therapeutic candidates. (B) Schematic of the in vitro experimental design. (C) Heatmap displaying the relative mRNA expression levels of key genes, including Acan , Mmp3 , and Vegfa , in NPCs following treatment with the five candidate compounds (n = 3). (D) RT-qPCR analysis of the relative mRNA expression of neurovascular modulation genes ( Slit2 , Sema3a , and Netrin-1 ) in NPCs treated with H 2 O 2 with or without RSV (n = 3). Data represent mean ± SD. The comparisons among groups were performed using one-way ANOVA. ∗, P < 0.05; ∗∗, P < 0.01; ∗∗∗, P < 0.001; ∗∗∗∗, P < 0.0001; ns = not significant.

Article Snippet: For immunofluorescence (IF) staining, antigen retrieval was conducted using citrate buffer (0.1 M, pH 6.0), followed by blocking in 10 % normal goat serum (Solarbio, Cat. No. SL038) at room temperature for 1 h. Sections were incubated overnight at 4 °C with primary antibodies targeting ACAN (Cat. No. DF7561, Affinity), COL2A1 (Cat. No. AF0135, Affinity), MMP3 (Cat. No. AF0217, Affinity), MMP13 (Cat. No. 18165-1-AP, Proteintech), CD31 (Cat. No. AF0077, Affinity), p-LATS1 (Cat. No. AF7170, Affinity), p-YAP (Cat. No. AF3328, Affinity), Tuj1 (Cat. No. 66375, Proteintech), CGRP (Cat. No. DF7386, Affinity), SP (Cat. No. DF7522, Affinity), and PGP9.5 (Cat. No. AF5490, Affinity) followed by incubation with appropriate fluorescent secondary antibodies for 2 h at room temperature and counterstaining with DAPI (Beyotime, Cat. No. C1006).

Techniques: Biomarker Discovery, In Vitro, Expressing, Quantitative RT-PCR

Journal: Bioactive Materials

Article Title: An intelligent nanoliposome alleviates disc degeneration and discogenic pain by inhibiting neurovascular ingrowth via a “Soil-conditioning, seed-modulating, and weeds-suppressing” strategy

doi: 10.1016/j.bioactmat.2025.11.048

Figure Lengend Snippet: NM-LP TK /RSV-MnCDs attenuates H 2 O 2 -induced ECM degradation by enhancing anabolic gene expression and suppressing catabolic activity in NPCs. (A–D) RT-qPCR analysis of mRNA expression levels of anabolic markers Acan and Col2a1 , and catabolic enzymes Adamts5 and Mmp3 in NPCs (n = 3). (E–G) Representative IF images and quantitative analyses of ACAN and MMP3 expression in NPCs across treatment groups, showing reduced ECM degradation in NM-LPTK/RSV-MnCDs-treated NPCs (n = 3). Scale bar, 30 μm. Data are presented as mean ± SD. The comparisons among groups were performed using one-way ANOVA. ∗, P < 0.05; ∗∗, P < 0.01; ∗∗∗, P < 0.001; ∗∗∗∗, P < 0.0001; ns = not significant.

Article Snippet: For immunofluorescence (IF) staining, antigen retrieval was conducted using citrate buffer (0.1 M, pH 6.0), followed by blocking in 10 % normal goat serum (Solarbio, Cat. No. SL038) at room temperature for 1 h. Sections were incubated overnight at 4 °C with primary antibodies targeting ACAN (Cat. No. DF7561, Affinity), COL2A1 (Cat. No. AF0135, Affinity), MMP3 (Cat. No. AF0217, Affinity), MMP13 (Cat. No. 18165-1-AP, Proteintech), CD31 (Cat. No. AF0077, Affinity), p-LATS1 (Cat. No. AF7170, Affinity), p-YAP (Cat. No. AF3328, Affinity), Tuj1 (Cat. No. 66375, Proteintech), CGRP (Cat. No. DF7386, Affinity), SP (Cat. No. DF7522, Affinity), and PGP9.5 (Cat. No. AF5490, Affinity) followed by incubation with appropriate fluorescent secondary antibodies for 2 h at room temperature and counterstaining with DAPI (Beyotime, Cat. No. C1006).

Techniques: Gene Expression, Activity Assay, Quantitative RT-PCR, Expressing

Journal: Bioactive Materials

Article Title: An intelligent nanoliposome alleviates disc degeneration and discogenic pain by inhibiting neurovascular ingrowth via a “Soil-conditioning, seed-modulating, and weeds-suppressing” strategy

doi: 10.1016/j.bioactmat.2025.11.048

Figure Lengend Snippet: NM-LP TK /RSV-MnCDs attenuates IVDD by restoring matrix homeostasis in LSI and AFP mouse models. (A) The mice experimental design diagram. (B) Representative H&E and SOFG images, and IF staining for ACAN and MMP3 expression (n = 5). Scale bar, 100 μm. (C) Histological scoring of disc degeneration in LSI and sham mice (n = 5). (D–E) Quantitative analysis of ACAN and MMP3 fluorescence intensity (n = 5). (F) Representative H&E and SOFG staining images of disc sections (n = 5). Scale bar, 100 μm. (G) Histological scores of AFP disc sections in each treatment group (n = 5). (H–I) Quantification of ACAN and MMP3 fluorescence intensity in the AFP model (n = 5). Data are presented as mean ± SD. The comparisons among groups were performed using one-way ANOVA. ∗, P < 0.05; ∗∗, P < 0.01; ∗∗∗, P < 0.001; ∗∗∗∗, P < 0.0001; ns = not significant.

Article Snippet: For immunofluorescence (IF) staining, antigen retrieval was conducted using citrate buffer (0.1 M, pH 6.0), followed by blocking in 10 % normal goat serum (Solarbio, Cat. No. SL038) at room temperature for 1 h. Sections were incubated overnight at 4 °C with primary antibodies targeting ACAN (Cat. No. DF7561, Affinity), COL2A1 (Cat. No. AF0135, Affinity), MMP3 (Cat. No. AF0217, Affinity), MMP13 (Cat. No. 18165-1-AP, Proteintech), CD31 (Cat. No. AF0077, Affinity), p-LATS1 (Cat. No. AF7170, Affinity), p-YAP (Cat. No. AF3328, Affinity), Tuj1 (Cat. No. 66375, Proteintech), CGRP (Cat. No. DF7386, Affinity), SP (Cat. No. DF7522, Affinity), and PGP9.5 (Cat. No. AF5490, Affinity) followed by incubation with appropriate fluorescent secondary antibodies for 2 h at room temperature and counterstaining with DAPI (Beyotime, Cat. No. C1006).

Techniques: Staining, Expressing, Fluorescence

Journal: ACS Nano

Article Title: Development of Intervertebral Disc Organoids through Directed Differentiation of Mesenchymal Stem Cells and Hierarchical 3D Printing

doi: 10.1021/acsnano.5c14391

Figure Lengend Snippet: Hierarchical 3D-printed IVDOs recapitulate the NP and AF structure. (a) Histological images of H&E, Masson, and safranin O/fast green staining. (b) Immunofluorescence staining results for COL II, COL I, and ACAN demonstrate that the HG and SilMA hydrogels and the NP and AF differentiation media had synergistic effects on the zone-specific matrix secretion of IVD organoids at 28 days. (c) Semiquantitative fluorescence intensity of COL2, COL1 and ACAN. * p < 0.05, ** p < 0.01, two-tailed unpaired t test. n = 3 independent experiments per group.

Article Snippet: Sections were incubated for 1 h at room temperature using COL-1 (Proteintech, 14695-1-AP), COL-2 (Proteintech, 28459–1-AP), and ACAN (Proteintech, 13880-1-AP) as primary antibodies.

Techniques: Staining, Immunofluorescence, Fluorescence, Two Tailed Test