Exosomal miRNAs in osteoarthritis.

Exosomes, as lipid nanostructure, are secreted by approximately all cell types within the body and actively involved in either short or long distances cell-cell communication in an autocrine and paracrine manner. Recently, exosomes are widely used as a nanocarrier for delivery of various nucleotide- or protein passed molecules including miRNA, and drugs into various cells, as a therapeutic strategy in a broad range of diseases including osteoarthritis. Osteoarthritis is one of the most common debilitating chronic musculoskeletal disorders with a multifaceted condition and an increasing impact on the quality of life. Therefore, this review aims to focus on the current knowledge of the exosomal miRNAs in the osteoarthritis to address their potential therapeutic application.