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1.惠州市第三人民医院肿瘤科,广东 惠州 516001
2.惠州市第三人民医院康复中心,广东 惠州 516001
纸质出版日期:2024-01-25,
收稿日期:2022-12-27,
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刘文东,张嘉麟,余紫丹.lncRNA MIR4435-2HG靶向miR-376a-3p调控胆管癌细胞生物学行为的机制研究[J].局解手术学杂志,2024,33(01):30-35.
LIU Wen-dong,ZHANG Jia-lin,YU Zi-dan.Mechanism of lncRNA MIR4435-2HG targeting miR-376a-3p to regulate the biological behavior of cholangiocarcinoma cells[J].JOURNAL OF REGIONAL ANATOMY AND OPERATIVE SURGERY,2024,33(01):30-35.
刘文东,张嘉麟,余紫丹.lncRNA MIR4435-2HG靶向miR-376a-3p调控胆管癌细胞生物学行为的机制研究[J].局解手术学杂志,2024,33(01):30-35. DOI: 10.11659/jjssx.12E022138.
LIU Wen-dong,ZHANG Jia-lin,YU Zi-dan.Mechanism of lncRNA MIR4435-2HG targeting miR-376a-3p to regulate the biological behavior of cholangiocarcinoma cells[J].JOURNAL OF REGIONAL ANATOMY AND OPERATIVE SURGERY,2024,33(01):30-35. DOI: 10.11659/jjssx.12E022138.
目的
2
探讨长链非编码RNA(lncRNA)MIR4435-2HG(MIR4435-2HG)对胆管癌细胞增殖、迁移、侵袭、凋亡的影响及其对微小RNA-376a-3p(miR-376a-3p)的调控作用。
方法
2
qRT-PCR法检测人肝内胆管上皮细胞HIBEpic与人胆管癌细胞RBE中MIR4435-2HG、miR-376a-3p的表达。将si-NC、si-MIR4435-2HG、miR-NC、miR-376a-3p mimics、si-MIR4435-2HG联合anti-miR-NC、si-MIR4435-2HG联合anti-miR-376a-3p分别转染至RBE细胞,作为si-NC组、si-MIR4435-2HG组、miR-NC组、miR-376a-3p组、si-MIR4435-2HG+anti-miR-NC组、si-MIR4435-2HG+anti-miR-376a-3p组;采用MTT法、Transwell小室法及流式细胞仪分别检测细胞增殖、迁移、侵袭及凋亡情况;双荧光素酶报告基因实验验证MIR4435-2HG与miR-376a-3p的靶向关系。Western blot检测相关蛋白表达。
结果
2
RBE细胞中MIR4435-2HG表达量升高(
P
<
0.05),miR-376a-3p表达量降低(
P
<
0.05)。与si-NC组比较,si-MIR4435-2HG组MIR4435-2HG表达、细胞活力及CyclinD1、MMP-2、MMP-9蛋白水平降低(
P
<
0.05),迁移及侵袭细胞数减少(
P
<
0.05),细胞凋亡率升高(
P
<
0.05);与miR-NC组比较,miR-376a-3p组细胞活力及CyclinD1、MMP-2、MMP-9蛋白水平降低(
P
<
0.05),迁移及侵袭细胞数减少(
P
<
0.05),miR-376a-3p表达、细胞凋亡率升高(
P
<
0.05)。MIR4435-2HG可靶向调控miR-376a-3p;与si-MIR4435-2HG+anti-miR-NC组比较,si-MIR4435-2HG+anti-miR-376a-3p组细胞活力及CyclinD1、MMP-2、MMP-9蛋白水平升高(
P
<
0.05),迁移及侵袭细胞数增多(
P
<
0.05),miR-376a-3p表达、细胞凋亡率降低(
P
<
0.05)。
结论
2
敲低MIR4435-2HG可通过靶向调控miR-376a-3p进而抑制RBE细胞增殖、迁移、侵袭,并诱导其凋亡。
Objective
2
To explore the effects of long non-coding RNA (lncRNA) MIR4435-2HG (MIR4435-2HG) on the proliferation, migration, invasion and apoptosis of cholangiocarcinoma cells and its regulatory effect on microRNA-376a-3p (miR-376a-3p).
Methods
2
qRT-PCR method was used to detect the expression of MIR4435-2HG and miR-376a-3p in human intrahepatic bile duct epithelial cells HIBEpic and human cholangiocarcinoma cells RBE. si-NC, si-MIR4435-2HG, miR-NC, miR-376a-3p mimics, si-MIR4435-2HG and anti-miR-NC,and si-MIR4435-2HG and anti-miR-376a-3p were transfected into RBE cells, respectively,as the si-NC group, the si-MIR4435-2HG group, the miR-NC group, the miR-376a-3p group, the si-MIR4435-2HG+anti-miR-NC group, the si-MIR4435-2HG+anti-miR-376a-3p group. MTT method, Transwell chamber method and flow cytometry were used to detect cell proliferation, migration, invasion and apoptosis; dual luciferase reporter gene assay was used to verify the targeting relationship between MIR4435-2HG and miR-376a-3p.Western blot was used to detect the expression of related proteins.
Results
2
The expression of MIR4435-2HG was increased in RBE cells, while the expression of miR-376a-3p was decreased (
P
<
0.05). Compared with the si-NC group, the MIR4435-2HG expression, cell viability, and protein levels of CyclinD1
MMP-2
MMP-9 in the si-MIR4435-2HG group were reduced (
P
<
0.05), the numbers of migrating and invading cells were reduced (
P
<
0.05), while the MIR4435-2HG expression and apoptosis rate were increased (
P
<
0.05). Compared with the miR-NC group, the cell viability and protein levels of CyclinD1
MMP-2
MMP-9 in the miR-376a-3p group were decreased (
P
<
0.05), the numbers of migrating and invading cells were decreased (
P
<
0.05), while the MIR4435-2HG expression and apoptosis rate were increased (
P
<
0.05). MIR4435-2HG was of targeted regulation on miR-376a-3p. Compared with the si-MIR4435-2HG+anti-miR-NC group, the cell viability and protein levels of CyclinD1
MMP-2
MMP-9 in the si-MIR4435-2HG+anti-miR-376a-3p group were increased (
P
<
0.05), the numbers of migrating and invading cells were increased (
P
<
0.05), while the MIR4435-2HG expression and apoptosis rate were decreased (
P
<
0.05).
Conclusion
2
Knockdown of MIR4435-2HG can inhibit the proliferation, migration, invasion and induce apoptosis of RBE cells by targeting miR-376a-3p.
lncRNA MIR4435-2HGmiR-376a-3p胆管癌细胞增殖迁移侵袭
lncRNA MIR4435-2HGmiR-376a-3pcholangiocarcinomacell proliferationmigrationinvasion
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