ZFP36L1对胰腺癌细胞生长调控的机制研究  

Mechanism of ZFP36L1 regulating pancreatic carcinoma cell growth

作　　者：杨洋 黄小勇[1] 赵文雪 高宁[1] 樊欣悦 张静[1,2] 杜娟[1] YANG Yang;HUANG Xiaoyong;ZHAO Wenxue;GAO Ning;FAN Xinyue;ZHANG Jing;DU Juan(Medical College of Yan'an University,Yan'an 716000,China;Basic Medical Department of Xi'an Medical University,Xi'an 710000,China)

机构地区：[1]延安大学医学院,陕西延安716000 [2]西安医学院,基础部,陕西西安710000

出　　处：《中国病理生理杂志》2024年第10期1815-1825,共11页Chinese Journal of Pathophysiology

基　　金：国家自然科学基金资助项目(No.32460232,No.32360162)。

摘　　要：目的:探究锌指蛋白36样蛋白1(ZFP36L1)对胰腺癌细胞生长的影响及其调控机制。方法:在线网站UALCAN和GEPIA分析ZFP36L1在胰腺癌中的表达及其表达变化与胰腺癌患者不良预后的相关性。Western blot检测ZFP36L1在胰腺导管细胞(HPNE)和3种不同胰腺癌细胞中的蛋白表达情况。CCK-8和集落形成实验检测ZFP36L1过表达及干扰对胰腺癌细胞增殖的影响;细胞划痕和Transwell实验检测ZFP36L1表达变化对胰腺癌细胞迁移和侵袭能力的影响;流式细胞术分析ZFP36L1表达变化对胰腺癌细胞周期的影响。生物信息学分析ZFP36L1的互作蛋白;Co-IP检测ZFP36L1与丝裂原活化蛋白激酶14(MAPK14)间的相互作用;Western blot检测过表达ZFP36L1对p38 MAPK信号通路相关蛋白表达及磷酸化的影响;回复实验检测过表达MAPK14在ZFP36L1调控胰腺癌细胞功能中的影响。结果:(1)ZFP36L1在胰腺癌中高表达,与胰腺癌患者不良预后正相关;与HPNE相比,ZFP36L1在MIA PaCa-2和ASPC-1胰腺癌细胞中的表达水平较高,在PANC-1胰腺癌细胞中的表达水平相对较低;(2)过表达ZFP36L1后,PANC-1和MIA PaCa-2细胞活力、集落形成、迁移和侵袭能力显著增加,干扰ZFP36L1表达则获得相反的结果;(3)细胞生长调控过程中ZFP36L1可促进胰腺癌细胞进入S期;(4)ZFP36L1可与MAPK14相互作用调控胰腺癌细胞生长,过表达MAPK14可逆转ZFP36L1过表达诱导的胰腺癌细胞活力和细胞迁移能力增加,使ZFP36L1敲降胰腺癌细胞的活力和迁移能力进一步下降。结论:ZFP36L1是潜在的胰腺癌促进蛋白,可通过细胞周期调控及与MAPK14互作调控胰腺癌细胞的生长。AIM:To investigate the impact and regulatory mechanisms of zinc finger protein 36-like protein 1(ZFP36L1)on pancreatic carcinoma cell growth.METHODS:The ZFP36L1 expression in pancreatic carcinoma and its correlation with patient prognosis were analyzed using online databases UALCAN and GEPIA.Western blot was utilized to detect ZFP36L1 protein expression in pancreatic ductal cells(HPNE)and three different pancreatic carcinoma cell lines.CCK-8 and cell colony formation assays were performed to evaluate the effects of ZFP36L1 on pancreatic cancer cell proliferation.Wound healing and Transwell assays were used to assess the impact of ZFP36L1 expression changes on pancreatic carcinoma cell migration and invasion.Flow cytometry experiments were used to analyze the effect of ZFP36L1 on the pancreatic carcinoma cell cycle process.Bioinformatics analysis was conducted to predict potential ZFP36L1 interacting proteins.Co-immunoprecipitation experiments were carried out to confirm the interaction between ZFP36L1 and mitogen-activated protein kinase 14(MAPK14).Rescue experiments were performed to assess the function of MAPK14 in ZFP36L1-regulated pancreatic carcinoma cell growth.RESULTS:(1)ZFP36L1 is highly expressed in pancreatic carcinoma and is positively correlated with poor prognosis in pancreatic carcinoma patients.Compared to HPNE,ZFP36L1 is highly expressed in MIA PaCa-2 and ASPC-1 cells,but relatively low in PANC-1 cells.(2)ZFP36L1 overexpression significantly increased the cell viability,colony formation,migration,and invasion abilities of PANC-1 and MIA PaCa-2 cells,while siRNA interference of ZFP36L1 led to opposite results.(3)ZFP36L1 promotes the entry of pancreatic carcinoma cells into the S phase of the cell cycle.(4)ZFP36L1 interacts with MAPK14 to regulate pancreatic cancer cell growth.MAPK14 overexpression reversed the cell viability and migration abilities of pancreatic carcinoma cells overexpressing ZFP36L1.Furthermore,it also decreased the cell viability and migration abilities of pancreatic carcinoma ce

关 键 词：锌指蛋白36样蛋白1 胰腺癌 丝裂原活化蛋白激酶14 生物信息学 细胞生长 

分 类 号：R735.9[医药卫生—肿瘤] R363[医药卫生—临床医学] Q279[生物学—细胞生物学]