“…Until now, the etiology and pathophysiology of OA have not been well documented. Various treatments, such as cellular therapies (Fu et al, 2014;Lee and Wang, 2017;Lin et al, 2017;Teo et al, 2019;Xu et al, 2019), administration of certain drugs or chemicals (Zhang et al, 2016(Zhang et al, , 2019Yao et al, 2019), therapeutic surgeries (Chen Y. et al, 2015), and biofabrication approach (Tatman et al, 2015;Onofrillo et al, 2018;Lee et al, 2019), have been intensely studied and tested in various preclinical studies and clinical trials during recent decades (Lee and Wang, 2017;Zhang et al, 2019). However, several hurdles are required to be addressed for therapeutic optimization before clinical translation.…”