Fig. 8From: Clearance of senescent cells with ABT-263 improves biological functions of synovial mesenchymal stem cells from osteoarthritis patientsImmunohistochemistry of senescence markers in chondrogenic pellets. Representative images and positive ratios of a p16, b p21, c MMP-13, and d IL-6 immunostaining in the control and ABT-263 groupsBack to article page