[目的]探究miR-325-3p靶向PRDX4对肾细胞癌细胞增殖、侵袭及凋亡的影响。[方法]设肾细胞癌细胞Caki-1组、miR-NC组、miR-325-3p-mimics组(过表达)、miR-325-3p-inhibitor组(低表达),测定各组细胞增殖、单克隆形成数目、凋亡率、侵袭水...[目的]探究miR-325-3p靶向PRDX4对肾细胞癌细胞增殖、侵袭及凋亡的影响。[方法]设肾细胞癌细胞Caki-1组、miR-NC组、miR-325-3p-mimics组(过表达)、miR-325-3p-inhibitor组(低表达),测定各组细胞增殖、单克隆形成数目、凋亡率、侵袭水平以及miR-325-3p、PRDX4水平。[结果]miR-325-3p-inhibitor组OD值(0.93±0.03)、存活率(86.58±6.36)%、单克隆形成数目(1062.29±102.78)、穿膜数(1917.34±425.35)、PRDX4 mRNA和蛋白表达水平(4.63±0.28、1.82±0.18)高于miR-325-3p-mimics组[(0.42±0.02)、(42.25±7.20)%、(239.89±35.27)个、(293.85±95.28)个、(2.04±0.24)、(0.38±0.07)](P<0.05),细胞凋亡率(1.12±0.29)%、miR-325-3p表达水平(1.42±0.38)低于miR-325-3p-mimics组(7.14±1.11)%、(5.68±0.37)(P<0.05)。[结论]miR-325-3p上调可以抑制肾细胞癌细胞的增殖(76.59%±7.30%vs 42.25%±7.20%)、迁移侵袭(702.28±111.52 vs 293.85±95.28),同时诱导细胞凋亡(3.46±1.04 vs 7.14±1.11),而这些过程主要是通过miR-325-3p与PRDX4的相互作用实现的。展开更多
BACKGROUND Hepatocellular carcinoma(HCC)has been a pervasive malignancy throughout the world with elevated mortality.Efficient therapeutic targets are beneficial to treat and predict the disease.Currently,the exact mo...BACKGROUND Hepatocellular carcinoma(HCC)has been a pervasive malignancy throughout the world with elevated mortality.Efficient therapeutic targets are beneficial to treat and predict the disease.Currently,the exact molecular mechanisms leading to the progression of HCC are still unclear.Research has shown that the microRNA-142-3p level decreases in HCC,whereas bioinformatics analysis of the cancer genome atlas database shows the ASH1L expression increased among liver tumor tissues.In this paper,we will explore the effects and mechanisms of microRNA-142-3p and ASH1L affect the prognosis of HCC patients and HCC cell bioactivity,and the association between them.AIM To investigate the effects and mechanisms of microRNA-142-3p and ASH1L on the HCC cell bioactivity and prognosis of HCC patients.METHODS In this study,we grouped HCC patients according to their immunohistochemistry results of ASH1L with pathological tissues,and retrospectively analyzed the prognosis of HCC patients.Furthermore,explored the roles and mechanisms of microRNA-142-3p and ASH1L by cellular and animal experiments,which involved the following experimental methods:Immunohistochemical staining,western blot,quantitative real-time-polymerase chain reaction,flow cytometric analysis,tumor xenografts in nude mice,etc.The statistical methods involved in this study contained t-test,one-way analysis of variance,theχ^(2)test,the Kaplan-Meier approach and the log-rank test.RESULTS In this study,we found that HCC patients with high expression of ASH1L possess a more recurrence rate as well as a decreased overall survival rate.ASH1L promotes the tumorigenicity of HCC and microRNA-142-3p exhibits reduced expression in HCC tissues and interacts with ASH1L through targeting the ASH1L 3′untranslated region.Furthermore,microRNA-142-3p promotes apoptosis and inhibits proliferation,invasion,and migration of HCC cell lines in vitro via ASH1L.For the exploration mechanism,we found ASH1L may promote an immunosuppressive microenvironment in HCC and ASH1L affects the expression of the cell junction protein zonula occludens-1,which is potentially relevant to the immune system.CONCLUSION Loss function of microRNA-142-3p induces cancer progression and immune evasion through upregulation of ASH1L in HCC.Both microRNA-142-3p and ASH1L can feature as new biomarker for HCC in the future.展开更多
文摘[目的]探究miR-325-3p靶向PRDX4对肾细胞癌细胞增殖、侵袭及凋亡的影响。[方法]设肾细胞癌细胞Caki-1组、miR-NC组、miR-325-3p-mimics组(过表达)、miR-325-3p-inhibitor组(低表达),测定各组细胞增殖、单克隆形成数目、凋亡率、侵袭水平以及miR-325-3p、PRDX4水平。[结果]miR-325-3p-inhibitor组OD值(0.93±0.03)、存活率(86.58±6.36)%、单克隆形成数目(1062.29±102.78)、穿膜数(1917.34±425.35)、PRDX4 mRNA和蛋白表达水平(4.63±0.28、1.82±0.18)高于miR-325-3p-mimics组[(0.42±0.02)、(42.25±7.20)%、(239.89±35.27)个、(293.85±95.28)个、(2.04±0.24)、(0.38±0.07)](P<0.05),细胞凋亡率(1.12±0.29)%、miR-325-3p表达水平(1.42±0.38)低于miR-325-3p-mimics组(7.14±1.11)%、(5.68±0.37)(P<0.05)。[结论]miR-325-3p上调可以抑制肾细胞癌细胞的增殖(76.59%±7.30%vs 42.25%±7.20%)、迁移侵袭(702.28±111.52 vs 293.85±95.28),同时诱导细胞凋亡(3.46±1.04 vs 7.14±1.11),而这些过程主要是通过miR-325-3p与PRDX4的相互作用实现的。
基金Supported by the Haihe Laboratory of Cell Ecosystem Innovation Fund,No.22HHXBJC00001the Key Discipline Special Project of Tianjin Municipal Health Commission,No.TJWJ2022XK016.
文摘BACKGROUND Hepatocellular carcinoma(HCC)has been a pervasive malignancy throughout the world with elevated mortality.Efficient therapeutic targets are beneficial to treat and predict the disease.Currently,the exact molecular mechanisms leading to the progression of HCC are still unclear.Research has shown that the microRNA-142-3p level decreases in HCC,whereas bioinformatics analysis of the cancer genome atlas database shows the ASH1L expression increased among liver tumor tissues.In this paper,we will explore the effects and mechanisms of microRNA-142-3p and ASH1L affect the prognosis of HCC patients and HCC cell bioactivity,and the association between them.AIM To investigate the effects and mechanisms of microRNA-142-3p and ASH1L on the HCC cell bioactivity and prognosis of HCC patients.METHODS In this study,we grouped HCC patients according to their immunohistochemistry results of ASH1L with pathological tissues,and retrospectively analyzed the prognosis of HCC patients.Furthermore,explored the roles and mechanisms of microRNA-142-3p and ASH1L by cellular and animal experiments,which involved the following experimental methods:Immunohistochemical staining,western blot,quantitative real-time-polymerase chain reaction,flow cytometric analysis,tumor xenografts in nude mice,etc.The statistical methods involved in this study contained t-test,one-way analysis of variance,theχ^(2)test,the Kaplan-Meier approach and the log-rank test.RESULTS In this study,we found that HCC patients with high expression of ASH1L possess a more recurrence rate as well as a decreased overall survival rate.ASH1L promotes the tumorigenicity of HCC and microRNA-142-3p exhibits reduced expression in HCC tissues and interacts with ASH1L through targeting the ASH1L 3′untranslated region.Furthermore,microRNA-142-3p promotes apoptosis and inhibits proliferation,invasion,and migration of HCC cell lines in vitro via ASH1L.For the exploration mechanism,we found ASH1L may promote an immunosuppressive microenvironment in HCC and ASH1L affects the expression of the cell junction protein zonula occludens-1,which is potentially relevant to the immune system.CONCLUSION Loss function of microRNA-142-3p induces cancer progression and immune evasion through upregulation of ASH1L in HCC.Both microRNA-142-3p and ASH1L can feature as new biomarker for HCC in the future.
