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1.浙江大学医学院附属杭州市第一人民医院,转化医学研究中心,杭州 310000
2.浙江大学医学院附属杭州市第一人民医院,消化内科,杭州 310000
张 菁,Email:zj663598@163.com,研究方向:肿瘤。
张 博,Email:zhangbohzss@163.com。
收稿:2023-04-27,
修回:2023-08-03,
录用:2023-09-12,
纸质出版:2023-11-28
移动端阅览
张菁,阎优优,徐栋超,等.敲低RBX1通过下调PHF5A抑制胰腺癌细胞增殖,迁移和侵袭并促进凋亡[J].重庆医科大学学报,2023,48(11):1314-1322.
Zhang Jing,Yan Youyou,Xu Dongchao,et al.Knock-down RBX1 inhibits the proliferation,migration,and invasion of pancreatic cancer cells and promotes cell apoptosis by down-regulating PHF5A[J].Journal of Chongqing Medical University,2023,48(11):1314-1322.
张菁,阎优优,徐栋超,等.敲低RBX1通过下调PHF5A抑制胰腺癌细胞增殖,迁移和侵袭并促进凋亡[J].重庆医科大学学报,2023,48(11):1314-1322. DOI: 10.13406/j.cnki.cyxb.003347.
Zhang Jing,Yan Youyou,Xu Dongchao,et al.Knock-down RBX1 inhibits the proliferation,migration,and invasion of pancreatic cancer cells and promotes cell apoptosis by down-regulating PHF5A[J].Journal of Chongqing Medical University,2023,48(11):1314-1322. DOI: 10.13406/j.cnki.cyxb.003347.
目的
2
研究环盒蛋白1(ring-finger protein 1,RBX1)对胰腺癌(pancreatic adenocarcinoma,PAAD)细胞增殖、凋亡、迁移和侵袭的作用及其潜在的作用机制。
方法
2
利用基因表达谱交互式分析网站(gene expression profile interactive analysis website,GEPIA),实时荧光定量聚合酶链反应(quantitative reverse transcription-polymerase chain reaction,qRT-PCR)、Western blot检测RBX1在PAAD组织、细胞中的表达和预后价值。使用细胞计数试剂盒-8(cell counting kit-8,CCK-8)、细胞克隆形成能力实验、脱氧核糖核苷酸末端转移酶介导的缺口末端标记法(terminal deoxynucleotidyl transferase dUTP nick end labeling,TUNEL)、细胞划痕实验、Transwell实验检测RBX1敲低对胰腺癌-1(pancreatic carcinoma-1,PANC-1)细胞增殖、凋亡、迁移和侵袭的影响。通过LinkedOmics网站研究PAAD中RBX1和PHD锌指结构域蛋白5A(plant homodomain finger-like domain-containing protein 5A,PHF5A)的相关性。qRT-PCR和Western blot检测RBX1敲低后PHF5A的表达,进行功能拯救实验。
结果
2
RBX1在PAAD组织和细胞系中高表达,与不良预后相关(
P
<
0.05)。RBX1敲低抑制PANC-1细胞增殖、迁移和侵袭,促进细胞凋亡(
P
<
0.05)。RBX1和PHF5A在PAAD中具有相关性(
r
=0.692),且RBX1正向调控PHF5A表达(
P
<
0.05)。功能拯救实验表明PHF5A过表达部分逆转了RBX1敲低对PANC-1细胞增殖、迁移、侵袭和凋亡的作用(
P<
0.05)。
结论
2
RBX1敲低通过下调PHF5A表达抑制PANC-1细胞增殖、迁移和侵袭,促进凋亡。
Objective
2
To explore the effect of ring box protein-1(RBX1) on the proliferation,apoptosis,migration,and invasion of pancreatic adenocarcinoma(PAAD) cells and the potential mechanism of action.
Methods
2
The gene expression profile interactive analysis website,quantitative real-time reverse-transcription polymerase chain reaction(qRT-PCR),and Western blot were used to measure the expression of RBX1 in PAAD tissues and cells and to determine its prognostic value. Cell Counting Kit-8,colony formation assay,terminal deoxynucleotidyl transferase dUTP nick end labeling,wound healing assay,and transwell assay were applied to evaluate the effects of RBX1 knockdown on the proliferation,apoptosis,migration,and invasion of pancreatic carcinoma-1(PANC-1) cells. LinkedOmics website was used to investigate the correlation between RBX1 and plant homodomain finger-like domain-containing protein 5A(PHF5A) in PAAD. Functional rescue experiments were performed by measuring the expression of PHF5A after RBX1 knockdown by qRT-PCR and Western blot.
Results
2
RBX1 expression was up-regulated in PAAD tissues and cells,which was associated with a poor prognosis(
P
<
0.05). RBX1 knockdown inhibited the proliferation,migration,and invasion of PANC-1 cells and promoted cell apoptosis(
P
<
0.05). RBX1 was associated with PHF5A in PAAD(
R
=0.6918),and RBX1 positively regulated th
e expression of PHF5A(
P
<
0.05). Functional rescue experiments showed that PHF5A overexpression partially reversed the effects of RBX1 knockdown on the proliferation,migration,invasion,and apoptosis of PANC-1 cells(
P
<
0.05).
Conclusion
2
RBX1 knockdown inhibits the proliferation,migration,and invasion of PANC-1 cells and promotes cell apoptosis by down-regulating PHF5A.
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