Osteocyte-derived exosomes induced by mechanical strain promote human periodontal ligament stem cell proliferation and osteogenic differentiation via the miR-181b-5p/PTEN/AKT signa... oleh Pei-ying Lv, Peng-fei Gao, Guang-jie Tian, Yan-yan Yang, Fei-fei Mo, Zi-hui Wang, Lu Sun, Ming-jie Kuang, Yong-lan Wang