Enabled homolog (ENAH) regulated by RNA binding protein splicing factor 3b subunit 4 (SF3B4) exacerbates the proliferation, invasion and migration of hepatocellular carcinoma cells via Notch signaling pathway

被引:20
作者
Deng, Guoming [1 ,2 ]
Luo, Yufeng [1 ,2 ]
Zhang, Yaoming [1 ,2 ]
Zhang, Jinfeng [2 ,3 ]
He, Zongyun [2 ,4 ]
机构
[1] Meizhou Peoples Hosp, Dept Hepatobiliary Surg 2, Meizhou, Peoples R China
[2] Guangdong Prov Key Lab Precis Med & Clin Translat, Meizhou, Peoples R China
[3] Meizhou Peoples Hosp, Dept Med Oncol 3, Meizhou, Peoples R China
[4] Meizhou Peoples Hosp, Dept Hepatol, Meizhou, Peoples R China
关键词
Hepatocellular carcinoma; ENAH; Notch signaling pathway; RECURRENCE; EXPRESSION; PLAYS;
D O I
10.1080/21655979.2021.2023983
中图分类号
Q81 [生物工程学(生物技术)]; Q93 [微生物学];
学科分类号
071005 ; 0836 ; 090102 ; 100705 ;
摘要
Enabled homolog (ENAH) is an actin-binding protein that implicated in multiple malignant tumors. High ENAH expression has been verified to be associated with poor prognosis in hepatocellular carcinoma (HCC). We aimed to reveal the role of ENAH in HCC and the potential mechanism. ENAH expression in HCC tissues and the prognostic correlation were analyzed by GEPIA2 database. RT-qPCR and Western blot were used to test ENAH expression in HCC cells. Following ENAH silencing, cell proliferation was estimated by CCK-8 and colony formation assays. Transwell and wound healing assays were to assess cell invasion and migration. ENCORI database was to analyze the correlation between ENAH and splicing factor 3b subunit 4 (SF3B4) in HCC tissues, which was then verified by RIP and actinomycin D assay. Then, the expression of Notch signaling-related proteins was detected by Western blotting after ENAH knockdown. Afterward, Notch1 was overexpressed to validate whether ENAH impacted the biological events of HCC cells through mediating Notch signaling. Results revealed that ENAH expression was elevated in HCC tissues and cells and associated with poor prognosis. ENAH deficiency mitigated proliferation, invasion and migration of HCC cells. Mechanistically, ENAH was positively correlated with SF3B4 in HCC tissues. SF3B4 could bind to ENAH mRNA and stabilized ENAH. Besides, ENAH activated Notch signaling. Notch1 up-regulation reversed the influence of ENAH knockdown on biological events of HCC cells. Collectively, ENAH regulated by SF3B4 promoted the development of HCC through activating Notch signaling, which identified ENAH as a potent molecular target for HCC therapy and prognosis.
引用
收藏
页码:2194 / 2206
页数:13
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