Zhongguo Gu Shang
January 2024
Osteoarthritis (OA) is the second-commonest arthritis, but pathogenic and regulatory mechanisms underlying OA remain incompletely understood. Here, we aimed to identify the mechanisms associated with microRNA-1 (miR-1) treatment of OA in rodent OA models using a proteomic approach. First, N = 18 Sprague Dawley (SD) rats underwent sham surgery (n = 6) or ACL transection (n = 12), followed at an interval of one week by randomization of the ACL transection group to intra-articular administration of either 50 µL placebo (control group) or miR-1 agomir, a mimic of endogenous miR-1 (experimental group).
View Article and Find Full Text PDFEndochondral bone formation from the growth plate plays a critical role in vertebrate limb development and skeletal homeostasis. Although miR-1 is mainly expressed in the hypertrophic region of the growth plate during this process, its role in the endochondral bone formation is unknown. To elucidate the role of miR-1 in cartilage development, chondrocyte-specific transgenic mice with high expression of miR-1 were generated (Col2a1-Cre-ER-GFP-RFP-miR-1).
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