AZD-8330

Osteoarthritis (OA) is a prevalent degenerative joint disease [1]. It has come to light that AZD8330 can suppress the generation of proinflammatory factors and deter the inflammatory response [2]. Given that inflammation is a primary causative factor in OA, it is posited that AZD8330 might exhibit superior efficacy in OA management.

In this study, we investigated the potential of intraperitoneal injection of AZD8330 to retard the progression of osteoarthritis in a murine model with surgically induced medial meniscus destruction (DMM). Concurrently, we employed ATDC5 cartilage cells to dissect the mechanism through which AZD8330 inhibits the TNF-α-induced NF-κB signaling pathway via modulation of RIP1. The findings revealed that AZD8330 mitigated cartilage degradation and the inflammatory response, leading to a substantial reduction in OARSI scores among DMM mice treated with AZD8330. Mechanistically, AZD8330 functioned as a suppressor of the TNF-α-induced NF-κB/p65 signaling pathway by facilitating the phosphorylation activation of cIAP1-mediated RIP1. The combination of data from both in vivo and in vitro experiments supports the conclusion that AZD8330 can attenuate chondrocyte degradation, thereby alleviating OA, by regulating the NF-κB/P65 signaling pathway through modulation of RIP1 activity. Consequently, the utilization of AZD8330 may hold potential in the prophylaxis of osteoarthritis.

Our investigation delineates the role of AZD8330 in the regulation of inflammation in the context of OA treatment. Furthermore, we have unveiled that the inhibitory impact of AZD8330 on OA may hinge upon the activation of cIAP1, which in turn downregulates RIP1, thereby restraining the NF-κB/P65 signaling pathway. This study lends credence to the notion that AZD8330 may be a promising contender for osteoarthritis therapy.

Our study provides compelling evidence attesting to the capacity of AZD8330 in managing inflammation within the realm of OA treatment. Likewise, our study has elucidated that the attenuation of OA by AZD8330 relies on the activation of cIAP1 to inhibit RIP1, consequently suppressing the NF-κB signaling pathway. On the strength of our present study, we may have identified a viable drug candidate for OA treatment.

In human lung cancer, Tripartite motif 65 (TRIM65) is documented as an important regulator in carcinogenesis. Knockdown of TRIM65 prevents the tumorigenesis of lung cancer cells, while TRIM65 overexpression presents the opposite effect. However, the roles of TRIM65 in human lymphocyte malignancies have reported little. Herein, we found that Jurkat (T‐lymphocyte) and Raji (B‐lymphocyte) expressed TRIM65. We aimed to investigate whether TRIM65 was a potential oncogenic protein that regulated the tumorigenesis of Jurkat and Raji cells. In our present study, cells were transfected with siRNA‐TRIM65 or TRIM65 overexpression vector, Cell counting kit‐8 (CCK‐8), Flow cytometry and Annexin V‐FITC/propidium iodide (PI) staining was carried out to detect cell viability, cell cycle profile and cell apoptosis, respectively. Extracellular signal‐regulated kinases 1/2 (ERK1/2) pathway‐associated proteins, such as Bcl2, cleaved‐caspase 3, vascular endothelial growth factor (VEGF), and phosphorylated ERK1/2 (p‐ERK1/2) were assessed. Our data indicated that knockdown of TRIM65 prevented the tumorigenesis of Jurkat and Raji cells. TRIM65 silencing inhibited cell proliferation, promoted cell apoptosis and arrested cell cycle, highly like through blocking ERK1/2 pathway. However, TRIM65 overexpression enhanced cell viability, increased the protein levels of Bcl2, VEGF, p‐ERK1/2 while decreased cleaved‐caspase 3 expression, suggesting the promoted effect of TRIM65 overexpression in the tumorigenesis of those two lymphoma cells. To validate the involvement of ERK1/2 pathway, ERK1/2 inhibitor AZD8330 (1 µmol/L) was introduced. We found that AZD8330 significantly prevented TRIM65 overexpression‐induced tumorigenesis. We concluded that TRIM65 served as a potential oncogenic protein on Jurkat and Raji cells, and ERK1/2 pathway was the underlying mechanism. Approaches targeting TRIM65 provided a novel strategy for the treatment of lymphoma.