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1.
Journal of Chinese Physician ; (12): 634-636, 2021.
Article in Chinese | WPRIM | ID: wpr-884096

ABSTRACT

It is known that LINC01018 and CDK6 are associated with the occurrence, progression and recurrence of malignant tumor. Our preliminary data showed that the expression of LINC01018 was down-regulated and that of CDK6 was up-regulated, which were related with the malignancy grade. Bioinformatics suggested that E2F1 binding site exist in the CDK6 promoter region, and LINC01018 might interact with E2F1. Thus we speculate that the expression of LINC01018 in malignant tumor is decreased. The interaction between LINC01018 and E2F1 activates E2F1, promotes the transcription activation of CDK6, and affects tumor proliferation, invasion and metastasis. All these are expected to reveal the effect and mechanisms of LINC01018 in the development and regulation of malignant tumor, and provide new ideas and evidences for its treatment.

2.
Journal of Chinese Physician ; (12): 1663-1667, 2021.
Article in Chinese | WPRIM | ID: wpr-931981

ABSTRACT

Objective:To establish a colon cancer cell line which overexpressing LINC01018 stably and study its biological characteristics.Methods:The expression of LINC01018 in HCoEpiC and HT-29 cells were detected by real time fluorescence quantitative polymerase chain reaction (qRT-PCR). HT-29 cells were infected with LINC01018 overexpression lentivirus to screen and establish HT-29 cell lines which overexpressing LINC01018 stably. The effect of LINC01018 on the proliferation, invasion and migration of HT-29 cells were detected by cell counting kit-8 (CCK-8) assay and Transwell assay separately. The expression of CDK6 and matrix metalloproteinase-2 (MMP-2) in HT-29 cells was detected by Western blot.Results:The expression of LINC01018 in HT-29 cells was significantly lower than that in the human colonic epithelial cells (HCoEpiC). HT-29-L18 cell lines which overexpressing LINC01018 stably was screened successfully. Overexpression of LINC01018 significantly inhibited the cell proliferation, invasion and migration, and reduced the protein expression of CDK6 and MMP-2 in HT-29 cells.Conclusions:The expression of LINC01018 was decreased abnormally in colon cancer cells. Up-regulation of LINC01018 expression can inhibit the proliferation, invasion and migration of colon cancer cells, which may be related to CDK6 and MMP-2.

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