临床骨科杂志 Journal of Clinical Orthopaedics ;24( ) 松 ; -α; ; ; 中图分类号: 文献标识码: 文章编号: ( ) R 681;R-33 A 1008 - 0287 2021 04 - 0601 - 04 The role of autophagy in tumor necrosis factor-α induced apoptosis in osteoblasts SHI Fang- fu CUI Hong-wang SUN Bo Dept of Spine and Osteopathic Surgery the First Affiliated Hospital , , ( , of Hainan Medical College Haikou Hainan 570102 China , , , ) Abstract Objective : To investigate the role of autophagy in tumor necrosis factor-α(TNF-α) induced apoptosis in Methods osteoblasts. The MC3T3-E1 osteoblasts culture fluid were divided into control group (non-management), TNF-α observation group (adding 40 μg / L TNF-α) and rapamycin(RAP) observation group ( adding 100 nmol / L RAP for 1 h,and then adding 40 μg / L TNF-α),according to different treatment methods. The methyl thiazolyl tetrazo- lium(MTT) assay was used to detect MC3T3-E1 cell proliferation,the apoptosis of cells was detected by floecytome- Results try,the