Pan Jin1,2, Huayu Wu3, Guojie Xu1,2, Li Zheng4, Jinmin Zhao5,6. 1. Department of Orthopaedic Trauma and Hand Surgery, The First Affiliated Hospital of Guangxi Medical University, Nanning, 530021, Guangxi, China. 2. Research Center for Regenerative Medicine, Guangxi Medical, University, Nanning, 530021, Guangxi, China. 3. Department of Cell Biology & Genetics, School of Premedical Sciences, Guangxi Medical University, Nanning, 530021, Guangxi, China. 4. The Medical and Scientific Research Center, Guangxi Medical University, Nanning, 530021, Guangxi, China. zhengli224@163.com. 5. Department of Orthopaedic Trauma and Hand Surgery, The First Affiliated Hospital of Guangxi Medical University, Nanning, 530021, Guangxi, China. zhaojinmin@126.com. 6. Research Center for Regenerative Medicine, Guangxi Medical, University, Nanning, 530021, Guangxi, China. zhaojinmin@126.com.