bag1  (Proteintech)

Journal: Cellular and Molecular Life Sciences: CMLS

Article Title: Proteostasis network response to environmental chronic stress: linking survival to protein aggregation in a human neuroblastoma cellular model

doi: 10.1007/s00018-025-05884-6

Figure Lengend Snippet: Analysis of the BAG1/BAG3 triage system. a Western blot analysis of the expression of BAG1 in the RIPA-soluble protein fraction after 24 h ( n = 3) and b 72 h ( n = 4). c Analysis of the expression of soluble BAG3 after 24 h ( n = 4) and d 72 h ( n = 4). e. Analysis of BAG3 in the insoluble fraction after 72 h of treatment ( n = 3). Data were normalized against Vinculin as loading control. For the insoluble fraction, the same amount of proteins quantified in the respective soluble fractions were considered. Data are expressed as fold increase ± S.E.M and compared to normalized control, shown as dashed line. Statistical significance was determined after one-way ANOVA with Dunnet’s multiple comparison test of each treatment against control. *** p < 0.001; ** p < 0.01; * p < 0.05

Article Snippet: Primary antibodies utilized were: PARP-1, Cell Signaling Technology, 9542; BiP/Grp78, Abcam, ab32618; p-eIF2⍺, Cell Signaling Technology, 9721; eIF2⍺, Cell Signaling Technology, 9722; Ubiquitin, antibodies.com, A85455; BAG3, Invitrogen, MA5-32706; BAG1, Proteintech, 19064–1-AP; LC3, RBC Lifescience, PD014; p62/SQSTM1, Cell Signaling Technology, 8025; pTDP-43, Proteintech, 80007–1-RR −1-AP; TDP-43, Proteintech, 12892–1-AP; β-Actin, Sigma-Aldrich, A5316; Vinculin, Sigma-Aldrich, V9131.

Techniques: Western Blot, Expressing, Control, Comparison

Journal: Annals of the Rheumatic Diseases

Article Title: Unveiling inflammatory and prehypertrophic cell populations as key contributors to knee cartilage degeneration in osteoarthritis using multi-omics data integration

doi: 10.1136/ard-2023-224420

Figure Lengend Snippet: The OA-associated changes between patients with OA and non-OA controls. (A) The Manhattan-like plot demonstrates the population-specific DE genes between patients with OA and non-OA controls. The numbers on the top panel denote the number of DE genes for each population. The dot size represents the value of −log10 (adjusted p). (B) The subnetworks identified by PhenomeExpress. The DE genes of preHTC were enriched in a pMAPK38 cascade subnetwork. (C) The visualisation of subpopulations of preHTC using UMAP projections, that is, preHTC-1 (blue), preHTC-2 (green), preHTC-3 (brown) and preHTC-4 (red), where a total of 25 778 chondrocytes were analysed by the integrative analysis of all 19 samples. (D) The bar plot shows the significant GO terms for each subpopulation. (E) The Manhattan-like plot shows the zone-specific DE genes between patients with OA and non-OA controls, that is, AS (red), SZ (yellow), MZ (blue) and DZ (green). The numbers on the top panel or bottom panel represent the number of significant upregulated or downregulated DE genes for each zone. (F) The bar plot shows the significant GO terms that were enriched by the zone-specific DE genes. Notably, the MZ-specific and DZ-specific DE genes were not enriched in any biologically meaningful pathways. (G) The subnetworks identified by PhenomeExpress. The DE genes of AS were enriched in response to the chemokine subnetwork and those of SZ were enriched in the regulation of the transcription subnetwork. (H) The top-ranked DE gene of AS or SZ between patients with OA and non-OA controls, BAG1, was validated by IHC staining. (I) The top-ranked DE gene of AS or SZ between patients with OA and non-OA controls, CD9, was validated by IHC staining. The quantification of positive cells from different zones (ie, SZ, MZ and DZ) is displayed by bar plots (replicates n=6), where the AS and SZ were hardly distinguished during IHC staining, therefore, the AS and SZ in Geo-seq results were merged together to only present as SZ in IHC staining. The scale bar: left, 500 μm; right, 50 μm. AS, articular surface; DZ, deep zone; GO, Gene Ontology; IHC, immunohistochemistry; InfC, inflammatory chondrocyte; MZ, middle zone; NS, no significant; OA, osteoarthritis; preInfC, pre-inflammatory chondrocyte; preFC, prefibrocartilage chondrocyte; preHTC, prehypertrophic chondrocyte; SZ, superficial zone; UMAP, uniform manifold approximation and projection. *p<0.05, **p<0.01, ***p<0.001.

Article Snippet: After rinsing, sections were sealed with goat serum (ZSGB-BIO, China) for 20 min at room temperature and incubated with rabbit antihuman CD74 (1:50, ab181470, Abcam, UK), mouse antihuman BMP2 (1:100, 66383-1-Ig, Proteintech, China), rabbit antihuman IBSP (1:2000, ab270605, Abcam), rabbit antihuman CHI3L1 (1:200, ab255297, Abcam), rabbit antihuman GPR183 (1:200, ab150625, Abcam), rabbit antihuman BAG1 (1:100, 19064-1-AP, Proteintech), rrabbit antihuman CD9 (1:2000, 20597-1-AP, Proteintech) overnight at 4°C.

Techniques: Immunohistochemistry