“…The primary obstacle associated with autologous chondrocyte implantation in articular cartilage repair is the loss of the chondrocyte phenotype (Duan et al, 2015). Prior work has demonstrated that MSCs can be isolated from various types of adult mesenchymal tissue, including bone marrow, skeletal muscle, adipose tissue, and human umbilical cord (Campagnoli et al, 2001;Zuk et al, 2002;Da Silva Meirelles et al, 2006;Kestendjieva et al, 2008;Hua et al, 2013). This is largely due to their high expansion efficiency and their capacity to differentiate into multiple cell types, including adipocytes, osteoblasts, chondrocytes, skeletal myocytes, and tenocytes (Pittenger et al, 1999).…”