ArticleZhongguo fei ai za zhi = Chinese journal of lung cancer2015
[Methylation Status of miR-182 Promoter in Lung Cancer Cell Lines].
Article in Zhongguo fei ai za zhi = Chinese journal of lung cancer, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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- Serum and Glucocorticoid-Inducible Kinase 1 (SGK1) in NSCLC Therapy.Pharmaceuticals (Basel, Switzerland) · 2020Review
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7 authors.
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Abstract
BACKGROUND AND
objectiveIt has been proven that the abnormal expression of miR-182 was related to the occurrence and development of tumors. The aim of this study is to explore the relationship between the methylation of miR-182 promoter and its expression in lung cancer cell lines.
methodsReal-time quantitative PCR and methylation-specific PCR were used to detect the expression level of miR-182 and its promoter methylation status in five lung cancer cell lines (A549, L9981, NL9980, 95C and 95D). DNA sequencing was used to confirm the methylation results.
resultsThe level of miR-182 expression significantly differs among these lung cancer cell lines. The highly metastatic human lung cancer cell lines, namely, A549 and L9981, demonstrate a relatively lower expression level of miR-182 compared with the lowly metastatic human lung cancer cell line 95C. Methylation-specific PCR and DNA sequencing assay results indicate that these lung cancer cell lines present different levels of miR-182 promoter methylation, and the highest methylation level is observed in A549 cells. Furthermore, the expression of miR-182 in these cell lines significantly increases when treated with 10 μM 5'-Aza-dC.
conclusionsDNA methylation occurs in the miR-182 promoter region in lung cancer cell lines. This methylation can regulate the expression level of miR-182. Further study must be conducted to explore the function of miR-182 promoter methylation in lung cancer occurrence and development. .
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