CD34 Antibody - #AF5149

Fig. 5. Chondrocyte apoptosis and immune molecular biomarkers were inhibited by BBR binding to SP-D in vivo in OA. OA model rats (n = 5/group) were injected using 25 μl of 200 μM BBR, followed by 25 μl rhSP-D (40 μg/mL) 1 day later. Sham-operated and OA-induction groups received an injection of 50 μl PBS into the right knee joint. For rats receiving rAAV-GFP or rAAV-SP-D shRNA, injections were performed for 10 consecutive days beginning 1 day after the initial BBR injection. At 10 weeks post-surgery, animals were sacrificed and the knee joints were collected for TUNEL and IHC analysis. (A) TUNEL staining (400 ×) was used to assess apoptosis. The p-p65, TLR4, F4/80, CD68, and CD34 expression was assessed via IHC (400 × with higher 800 × magnification inset). (B) Quantification of the indicated proteins in IHC images. Each column represents the mean ± SEM (n = 5). ***P < 0.001 versus the sham-operated group; ##P < 0.01 and ###P < 0.001 versus the OA-induction group; &P < 0.05 and &&P < 0.01 versus the OA + BBR group.

(D) Representative microscopic feature of subtaneous tumor in H&E-stained sections of nude mice (left). CD34 protein expression was higher in tumors with low expression of BCL2L10 by IHC (middle and right).