1. Docosahexaenoic acid (DHA) and linoleic acid (LA) modulate the expression of breast cancer involved miRNAs in MDA-MB-231 cell line
- Author
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Parvaneh Soofian-kordkandi, Dariush Shanehbandi, Behzad Baradaran, Mahsa Javadian, Daniel Elieh Ali Komi, Najibeh Shekari, and Tohid Kazemi
- Subjects
Nutrition and Dietetics ,Docosahexaenoic Acids ,business.industry ,Endocrinology, Diabetes and Metabolism ,Linoleic acid ,Breast Neoplasms ,medicine.disease ,Cell Line ,Linoleic Acid ,MicroRNAs ,chemistry.chemical_compound ,Breast cancer ,chemistry ,Paclitaxel ,Docosahexaenoic acid ,Cell culture ,Complementary DNA ,Gene expression ,microRNA ,medicine ,Cancer research ,Humans ,Female ,business - Abstract
Docosahexaenoic acid (DHA) and linoleic acid (LA) have modulatory effects on breast cancer (BC) cell lines. We aimed to investigate the effects of DHA, LA alone, in combination, and in the presence of paclitaxel on the expression of five microRNAs involved in the pathology of BC in MDA-MB-231 cell line.MDA-MB-231 cells were treated with either DHA or LA or in combination in the presence/absence of paclitaxel (Taxol). Total RNA was extracted and cDNA synthesized from the cells before and after treatment. The expression levels of miR-30, miR-106b, miR-20, miR-126, and miR-194 were determined by quantitative real-time PCR (qPCR).Treatment of MDA-MB-231 cells with DHA modulated the gene expression of miR-30 (increased by 7.74-fold (p 0.0001), miR-194 (decreased by 11-fold (p 0.0001)), miR-106b (increased by 2.64-fold (p = 0.0004), miR-126 (decreased by 50-fold (p 0.0001)), and miR-20 (decreased by 4-fold (p 0.0001)). Additionally, treatment of MDA-MB-231 cells with LA modulated the gene expression of miR-30 (increased by 2.38-fold (p = 0.0001)), miR-194 (decreased by 100-fold (p 0.0001)), miR-106b (decreased by 10-fold (p 0.0001)). The combined DHA/LA treatment of MDA-MB-231 cells showed regulatory effect on the expression of studied microRNAs in which decreased the expression of miR-30 (5.5-fold (p 0.0001)), miR-194 (11-fold (p 0.0001)), miR-20 (3.5-fold (p = 0.0006)), and increased the expression of miR-106b (9.78-fold (p 0.0001)).Modulation of the expression levels of BC-involved microRNAs could be one of the possible mechanisms of action through which DHA and LA may exert their biologic effects on MDA-MB-231 cell line.
- Published
- 2021
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