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자료유형
학술저널
저자정보
Ko Eun-Ji (Kosin University College of Medicine) Kim Eun Taeg (Pusan National University Hospital) Kim Heungyeol (Hannah Hospital) Lee Chul Min (Cha University Ilsan Medical Center School of Medicine) Koh Suk Bong (Daegu Catholic University School of Medicine) Eo Wan Kyu (Kyung Hee University College of Medicine) Kim Hongbae (Hallym University Medical Center Hallym University College of Medicine) Oh Young Lim (Kosin University College of Medicine) Ock Mee Sun (Kosin University College of Medicine) Kim Ki Hyung (Pusan National University Hospital) Cha Hee-Jae (Kosin University College of Medicine)
저널정보
한국유전학회 Genes & Genomics Genes & Genomics Vol.44 No.9
발행연도
2022.9
수록면
1,091 - 1,097 (7page)
DOI
10.1007/s13258-022-01280-7

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Background Among various human endogenous retroviruses (HERVs), the HERV-K (HML-2) group has been reported to be highly related to cancer. In pancreatic cancer cells, shRNA-mediated downregulation of HERV-K env RNA decreases cell proliferation and tumor growth through the RAS-ERK-RSK pathway; in colorectal cancer, CRISPR-Cas9 knockout (KO) of the HERV-K env gene affects tumorigenic characteristics through the nupr-1 gene. Objective The effect of HERV-K env KO has not been studied in ovarian cancer cell lines. In this study, we analyzed the tumorigenic characteristics of ovarian cancer cell lines, including cell proliferation, migration, and invasion, and the expression patterns of related proteins after CRISPR-Cas9 KO of the HERV-K env gene. Methods The HERV-K env gene KO was achieved using the CRISPR-Cas9 system in ovarian cancer cell lines SKOV3 and OVCAR3. Tumorigenic characteristics including cell proliferation, migration, and invasion were analyzed, and related protein expression was investigated by western blot analysis. Results The expression of the HERV-K env gene in KO cells was significantly reduced at RNA and protein levels, and tumorigenic characteristics including cell proliferation, migration, and invasion were significantly reduced. In HERV-K env KO SKOV3 cells, the expression of the RB protein was significantly up-regulated and the cyclin B1 protein level was significantly reduced. In contrast, in HERV-K env KO OVCAR3 cells, the level of phospho-RB protein was significantly reduced, but other protein levels were not changed. Conclusion The results of this study showed that HERV-K env gene KO affects cell proliferation, invasion, and migration of ovarian cells through RB and Cyclin B1 proteins, but the specific regulation pattern can differ by cell line.

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