Reciprocal Changes in miRNA Expression with Pigmentation and Decreased Proliferation Induced in Mouse B16F1 Melanoma Cells by l-Tyrosine and 5-Bromo-2′-Deoxyuridine
| Autor: | Esther Natalia Muñoz, Michael Carvajal, Daniel Osuna, Hernán Mauricio Rivera, Luis Alberto Gómez, Mauro Florez |
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| Rok vydání: | 2021 |
| Předmět: |
0301 basic medicine
senescence Melanoma Experimental lcsh:Chemistry Melanin Mice 0302 clinical medicine Gene Regulatory Networks RNA-Seq lcsh:QH301-705.5 Cellular Senescence Spectroscopy Pigmentation Melanoma l-tyrosine General Medicine Cell cycle Microphthalmia-associated transcription factor Phenotype melanin Computer Science Applications Cell biology Gene Expression Regulation Neoplastic 5-bromo-2′-deoxyuridine 030220 oncology & carcinogenesis miRNAs Senescence Biology Article Catalysis Inorganic Chemistry 03 medical and health sciences Cyclin D1 Cell Line Tumor microRNA melanoma medicine Animals Physical and Theoretical Chemistry Molecular Biology Cell Proliferation Melanins Organic Chemistry medicine.disease MicroRNAs 030104 developmental biology Bromodeoxyuridine lcsh:Biology (General) lcsh:QD1-999 Tyrosine |
| Zdroj: | International Journal of Molecular Sciences, Vol 22, Iss 1591, p 1591 (2021) International Journal of Molecular Sciences Volume 22 Issue 4 |
| ISSN: | 1422-0067 |
| Popis: | Background: Many microRNAs have been identified as critical mediators in the progression of melanoma through its regulation of genes involved in different cellular processes such as melanogenesis, cell cycle control, and senescence. However, microRNAs’ concurrent participation in syngeneic mouse B16F1 melanoma cells simultaneously induced decreased proliferation and differential pigmentation by exposure to 5-Brd-2′-dU (5’Bromo-2-deoxyuridine) and L-Tyr (L-Tyrosine) respectively, is poorly understood. Aim: To evaluate changes in the expression of microRNAs and identify which miRNAs in-network may contribute to the functional bases of phenotypes of differential pigmentation and reduction of proliferation in B16F1 melanoma cells exposed to 5-Brd-2′-dU and L-Tyr. Methods: Small RNAseq evaluation of the expression profiles of miRNAs in B16F1 melanoma cells exposed to 5-Brd-2′-dU (2.5 μg/mL) and L-Tyr (5 mM), as well as the expression by qRT-PCR of some molecular targets related to melanogenesis, cell cycle, and senescence. By bioinformatic analysis, we constructed network models of regulation and co-expression of microRNAs. Results: We confirmed that stimulation or repression of melanogenesis with L-Tyr or 5-Brd-2′-dU, respectively, generated changes in melanin concentration, reduction in proliferation, and changes in expression of microRNAs 470-3p, 470-5p, 30d-5p, 129-5p, 148b-3p, 27b-3p, and 211-5p, which presented patterns of coordinated and reciprocal co-expression, related to changes in melanogenesis through their putative targets Mitf, Tyr and Tyrp1, and control of cell cycle and senescence: Cyclin D1, Cdk2, Cdk4, p21, and p27. Conclusions: These findings provide insights into the molecular biology of melanoma of the way miRNAs are coordinated and reciprocal expression that may operate in a network as molecular bases for understanding changes in pigmentation and decreased proliferation induced in B16F1 melanoma cells exposed to L-Tyr and 5-Brd-2′-dU. |
| Databáze: | OpenAIRE |
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