CircZNF609 enhances hepatocellular carcinoma cell proliferation, metastasis, and stemness by activating the Hedgehog pathway through the regulation of miR-15a-5p/15b-5p and GLI2 expressions
| Autor: | Yangke He, Shijia Tang, Dongqin Chen, Liang Wei, Wansheng Wang, Li Jin, Hui Huang, Ming Zeng, Fang Zhang |
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| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Cancer Research
Cell biology Carcinoma Hepatocellular Carcinogenesis Immunology Biology Zinc Finger Protein Gli2 medicine.disease_cause Article Metastasis Cellular and Molecular Neuroscience Cell Movement GLI2 Cell Line Tumor medicine Humans lcsh:QH573-671 Neoplasm Metastasis Cancer Cell Proliferation Gene knockdown lcsh:Cytology Cell growth Liver Neoplasms RNA Circular medicine.disease Hedgehog signaling pathway digestive system diseases Gene Expression Regulation Neoplastic MicroRNAs Apoptosis Hepatocellular carcinoma Cancer research Signal Transduction |
| Zdroj: | Cell Death & Disease Cell Death and Disease, Vol 11, Iss 5, Pp 1-12 (2020) |
| ISSN: | 2041-4889 |
| Popis: | Emerging evidence has revealed that aberrantly expressed circular RNAs (circRNAs) play vital roles in tumorigenesis and progression of diverse human malignancies. Although an existing literature has elucidated the regulatory role of circZNF609 in breast cancer, the crucial function that circZNF609 exerted on hepatocellular carcinoma (HCC) remains unclear. Herein, we determined to explore the molecular mechanism of circZNF609 in HCC. In this study, circZNF609 was conspicuously overexpressed and featured with loop structure in HCC. Functional tests revealed that decreased expression of circZNF609 suppressed cell proliferation, metastasis and stemness, whereas induced cell apoptosis in HCC. Subsequent molecular mechanism assays indicated that circZNF609 contributed to HCC progression through activation of Hedgehog pathway. Moreover, circZNF609 was found to be negatively correlated with miR-15a-5p/15b-5p but positively correlated with GLI2. Moreover, there was a negative correlation between miR-15a-5p/15b-5p and GLI2. Rescue experiments testified that GLI2 overexpression could recover circZNF609 depletion-mediated function on HCC development while miR-15a-5p/15b-5p inhibition could partially rescue circZNF609 silencing-mediated effect on HCC progression. Final experiments in vivo further elucidated the suppressive function of circZNF609 knockdown on the tumorigenesis of HCC. Briefly, circZNF609 enhances HCC cell proliferation, metastasis, and stemness by activating the Hedgehog pathway through the regulation of miR-15a-5p/15b-5p and GLI2 expressions. |
| Databáze: | OpenAIRE |
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