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- 저자 : Ningwei Che (검색결과 2 건)
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ceRNA network of lncRNA MIR210HG/miR-377-3p/LMX1A in malignant proliferation of glioma cells
Yu Zhikuan,Che Ningwei,He Yeting,Zhang Bo 한국유전학회 2022 Genes & Genomics Vol.44 No.12
Background: Glioma represents the most heterogeneous and malignant form of brain tumor with a poor prognosis. The long non-coding RNA (LncRNA)-mediated competing endogenous RNA (ceRNA) network plays a regulatory role in cancer progression. Objectives: The present study was conducted to expound on the role of lncRNA MIR210 host gene (MIR210HG)-mediated ceRNA mechanism in the malignant proliferation of glioma cells and provide a novel theoretical basis for the treatment of glioma. Methods: Expression levels of lncRNA MIR210HG, microRNA (miR)-377-3p, and LIM homeobox transcription factor 1 alpha (LMX1A) in glioma tissues and cells were determined by reverse-transcription quantitative polymerase chain reaction. Then, cell proliferation was assessed by cell counting kit-8 and colony formation assays. After that, the subcellular localization of lncRNA MIR210HG was analyzed by subcellular fractionation assay and the bindings of miR-377-3p to lncRNA MIR210HG and LMX1A were analyzed by the dual-luciferase assay. Glioma cells were transfected with si-MIR210HG, miR-377-3p inhibitor, or overexpressed-LMX1A vectors to evaluate their effects on the malignant proliferation of glioma cells. Results: LncRNA MIR210HG was elevated in glioma tissues and cells and inhibition of lncRNA MIR210HG reduced the proliferation potential of glioma cells. LncRNA MIR210HG targeted and inhibited miR-377-3p and miR-377-3p targeted and inhibited LMX1A transcription. miR-377-3p downregulation or LMX1A overexpression reversed the inhibition of silencing lncRNA MIR210HG on glioma cell proliferation. Conclusion: LncRNA MIR210HG was upregulated in glioma tissues and cells and inhibition of lncRNA MIR210HG suppressed glioma cell proliferation through promoting miR-377-3p and repressing LMX1A.
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Guo Zu,Jing Guo,Tingting Zhou,Ningwei Che,Baiying Liu,Dong Wang,Xiangwen Zhang 생화학분자생물학회 2019 Experimental and molecular medicine Vol.51 No.-
FoxM1 is involved in the regeneration of several organs after injury and expressed in the intestinal mucosa. The intrinsic mechanism of FoxM1 activity in the mucosa after intestinal ischemia/reperfusion (I/R) injury has not been reported. Therefore, we investigated the role of FoxM1 in mediating intestinal mucosa regeneration after I/R injury. Expression of FoxM1 and the proliferation of intestinal mucosa epithelial cells were examined in rats with intestinal I/R injury and an IEC-6 cell hypoxia/reperfusion (H/R) model. The effects of FoxM1 inhibition or activation on intestinal epithelial cell proliferation were measured. FoxM1 expression was consistent with the proliferation of intestinal epithelial cells in the intestinal mucosa after I/R injury. Inhibition of FoxM1 expression led to the downregulation of Ki67 expression mediated by the inhibited expression of Nurr1, and FoxM1 overexpression promoted IEC-6 cell proliferation after H/R injury through activating Nurr1 expression. Furthermore, FoxM1 directly promoted the transcription of Nurr1 by directly binding the promoter of Nurr1. Further investigation showed low expression levels of FoxM1, Nurr1, and Ki-67 in the intestinal epithelium of patients with intestinal ischemic injury. FoxM1 acts as a critical regulator of intestinal regeneration after I/R injury by directly promoting the transcription of Nurr1. The FoxM1/ Nurr1 signaling pathway represents a promising therapeutic target for intestinal I/R injury and related clinical diseases.
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