摘要
目的:观察第10号染色体同源缺失性磷酸酶-张力蛋白同源的基因(PTEN)对急性淋巴细胞白血病细胞增殖、侵袭的影响。方法:在人急性淋巴细胞白血病细胞CEM-C1中转染PTEN过表达载体(p BPPTEN),同时转染对照载体(p BP),以没有转染的细胞作为对照,RT-PCR和Western blot检测转染后细胞中PTEN的水平;MTT和集落形成试验检测细胞增殖能力;Transwell小室检测细胞侵袭和迁移能力;Western blot检测PTEN、基质金属蛋白酶-2(MMP-2)、基质金属蛋白酶-9(MMP-9)、p38丝裂原活化蛋白激酶(p38MAPK)、磷酸化的p38MAPK(p-p38MAPK)的水平。结果:转染对照载体的CEM-C1细胞中PTEN水平、细胞光密度(OD)值、克隆形成数目、侵袭数目、迁移数目及PTEN、MMP-2、MMP-9、p38MAPK、pp38MAPK水平与未转染细胞相比没有明显变化(P>0.05)。转染PTEN过表达载体后的CEM-C1细胞中PTEN水平和p-p38MAPK水平升高,细胞OD值、克隆形成数目、侵袭数目、迁移数目和MMP-2、MMP-9水平降低,与未转染细胞相比差异具有统计学意义(P<0.05)。结论:PTEN抑制急性淋巴细胞白血病细胞增殖、侵袭及迁移,促进p38MAPK信号通路激活。
Objective: To investigate the effect of PTEN on the proliferation and invasion of acute lymphoblastic leukemia cells. Methods: In human acute lymphoblastic leukemia cells,CEM-C1 was transfected with PTEN overexpression vector( p BP-PTEN) and transfected into the control vector( p BP),the cells without transfection were used as controls. The levels of PTEN in transfected cells were detected by RT-PCR and Western blot,MTT and colony forming assays were used to detect cell proliferation,the cell invasion and migration ability was detected by Transwell.PTEN,MMP-2,MMP-9,p38MAPK,p-p38MAPK protein levels were detected by Western blot. Results: PTEN levels,OD value,colony forming number,invasion number,migration number and PTEN,MMP-2,MMP-9,p38MAPK,p-p38MAPK levels in CEM-C1 cells transfected with the control vector had no obvious changes compared with the non transfected cells( P〉0. 05). After the transfection of PTEN increased expression of PTEN and p-p38MAPK level vector in CEM-C1 cells,cell clone formation,invasion number,OD value,migration number and MMP-2,MMP-9 level reduced compared with non transfected cells,the difference was statistically significant( P〈0. 05). Conclusion: PTEN inhibits the proliferation,invasion and amigration of acute lymphoblastic leukemia and promotes the activation of p38MAPK signaling pathway.
作者
姚金晓
杨如玉
马海龙
李超
魏旭东
Yao Jinxiao;Yang Ruyu;Ma Hailong;Li Chao;Wei Xudong(Department of Hematology,Nanyang Central Hospital,Henan Nanyang 473000,China;Department of Blood Specialty,Cancer Hospital Affiliated to Zhengzhou University,Henan Zhengzhou 450008,China)
出处
《现代肿瘤医学》
CAS
2018年第14期2147-2151,共5页
Journal of Modern Oncology
基金
国家自然科学基金面上项目(编号:81170520)