Journal: Journal of Translational Autoimmunity

Article Title: T cell proliferative response to a homocitrullinated peptide correlates with joint pathology in collagen induced arthritis

doi: 10.1016/j.jtauto.2025.100345

Figure Lengend Snippet: RA-Specific Serum IgG Antibodies in DBA/1J Mice. Sera were collected biweekly from DBA/1J mice immunized with bovine type II collagen (bCII) (arthritic: N = 9–18; non-arthritic: N = 17–37), or PBS (N = 14) and tested via indirect ELISA for A) anti-CitP, and B) anti-HomoCitP IgG antibodies. Graphs show the median [IQR] for each group, with a cut-off indicating the limit of detection (dashed line). Statistical analysis was performed using a mixed effects model with the Geisser-Greenhouse correction and Tukey's multiple comparisons test. The resulting p-values are indicated on the graphs.

Article Snippet: The anti-mCII ELISA kits were used according to manufacturer's protocol (2036T; Chondrex).

Techniques: Indirect ELISA

Journal: Journal of Translational Autoimmunity

Article Title: T cell proliferative response to a homocitrullinated peptide correlates with joint pathology in collagen induced arthritis

doi: 10.1016/j.jtauto.2025.100345

Figure Lengend Snippet: Phenotypic Characterization of Collagen Induced Arthritis in DBA/1J Mice. DBA/1J mice were immunized with bovine type II collagen (N = 11–55; arthritic: n = 6–18; non-arthritic: n = 5–37) or PBS (N = 4–14). A) Representative photographs and E) 3D-rendered micro-CT radiographs of arthritic (red arrow = bone erosion), non-arthritic, and PBS-injected mouse hind limbs. Changes in B) clinical arthritis score, C) anti-bovine type II collagen (CII) IgG and D) anti-mouse CII IgG over time. Dashed line represents the antibody positivity cut-off, indicating the limit of detection. F) Hind limb bone mineral density and G) bone mineral density of bCII-immunized fore and hind limbs over time. H) Pain-like behaviour at day 47 post primary immunization. Graphs show the median [IQR], with each symbol in F-H) representing an individual mouse. For B-D), statistical analysis was performed using a mixed effects model with the Geisser-Greenhouse correction and Tukey's multiple comparisons test, with resulting p-values shown in the graphs. Kruskal-Wallis with Dunn's multiple comparisons test was used for F) and H), and the resulting p-values were p = 0.0008 and p = 0.0003 respectively, with p-values for pairwise comparisons indicated on the graphs. For G), a Spearman correlation coefficient (r) was calculated and p < 0.05 was considered significant.

Article Snippet: Immunization-grade bovine type II collagen (bCII) protein was purchased from Chondrex Inc (20022; USA).

Techniques: Micro-CT, Injection

Journal: Journal of Translational Autoimmunity

Article Title: T cell proliferative response to a homocitrullinated peptide correlates with joint pathology in collagen induced arthritis

doi: 10.1016/j.jtauto.2025.100345

Figure Lengend Snippet: Splenic T Cell Proliferation Following Stimulation with Type II Collagen Protein. Splenocytes isolated at day 49 post primary immunization from DBA/1J mice immunized with bovine type II collagen (bCII) (arthritic: N = 8; non-arthritic: N = 7) or PBS (N = 10) were cultured in media alone or 80 μg/mL bCII protein. Following 72 h incubation, A) CD4 + and B) CD8 + T cell proliferation following stimulation with bCII was measured by flow cytometry and is shown as a mean (±SD) stimulation index, with data points representing individual mice. Stimulation indices greater than 1.6 (dashed line) were considered a positive response. Statistical analysis was performed using one-way ANOVA with Tukey's multiple comparisons test, and the resulting p-values were p = 0.0054 and p = 0.0987 respectively, with p-values for pairwise comparisons indicated on the graphs. ns: not significant.

Article Snippet: Immunization-grade bovine type II collagen (bCII) protein was purchased from Chondrex Inc (20022; USA).

Techniques: Isolation, Cell Culture, Incubation, Flow Cytometry

Journal: Journal of Translational Autoimmunity

Article Title: T cell proliferative response to a homocitrullinated peptide correlates with joint pathology in collagen induced arthritis

doi: 10.1016/j.jtauto.2025.100345

Figure Lengend Snippet: RA-Specific Serum IgG Antibodies in DBA/1J Mice. Sera were collected biweekly from DBA/1J mice immunized with bovine type II collagen (bCII) (arthritic: N = 9–18; non-arthritic: N = 17–37), or PBS (N = 14) and tested via indirect ELISA for A) anti-CitP, and B) anti-HomoCitP IgG antibodies. Graphs show the median [IQR] for each group, with a cut-off indicating the limit of detection (dashed line). Statistical analysis was performed using a mixed effects model with the Geisser-Greenhouse correction and Tukey's multiple comparisons test. The resulting p-values are indicated on the graphs.

Article Snippet: Immunization-grade bovine type II collagen (bCII) protein was purchased from Chondrex Inc (20022; USA).

Techniques: Indirect ELISA

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: Oxidative stress and aberrant neurovascularization are progressively enhanced during IVDD. (A) Representative T2-weighted MRI images showing disc structure in human intervertebral discs at varying Pfirrmann degeneration grades (II–IV). (B–C) Fluorescent staining and quantitative analysis of ROS levels in primary NPCs from grades II–IV NP tissues, showing a significant increase in oxidative stress with disease severity (n = 5). Scale bar, 20 μm. (D–F) IHC staining and quantitative analyses of CD31 and Tuj1 across different degenerative grades (n = 5). Scale bar, 50 μm. (G) H&E, SOFG, and IF staining of COL2A1 and MMP3 for IVDs (n = 5). Scale bar, 100 μm. (H) Histological score of the IVD tissues (n = 5). (I–J) Quantification of IF staining for COL2A1 and MMP3 (n = 5). (K–M) IF staining and corresponding quantification analyses of CD31 and Tuj1 in disc tissues of sham and AFP-treated mice (n = 5). Scale bar, 100 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: Staining, Immunohistochemistry

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 suppresses vascular ingrowth and matrix degradation in AFP-induced disc degeneration through Hippo pathway inactivation. (A–D) Representative IF images and quantitative analyses of CD31 and Tuj1 in IVDs from AFP-induced IVDD mice treated with MCB, TRULI, or their combinations with NM-LP TK /RSV-MnCDs (n = 5). Scale bar, 100 μm. (E–H) IF staining and quantification of COL2A1 and MMP13 expression in NP regions (n = 5). Scale bar, 100 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: Staining, Expressing