| Autor: |
Mociño-Rodríguez MD; Faculty of Chemistry, Autonomous University of the State of Mexico (UAEMex), Toluca, MEX, Mexico., Santillán-Benítez JG; Faculty of Chemistry, Autonomous University of the State of Mexico (UAEMex), Toluca, MEX, Mexico., Dozal-Domínguez DS; Specialized Hemato-Oncological Laboratory of the Children's Hospital, IMIEM, Toluca, MEX, Mexico., Hernández-Navarro MD; Faculty of Chemistry, Autonomous University of the State of Mexico (UAEMex), Toluca, MEX, Mexico., Flores-Merino MV; Molecular Biology Laboratory, Medical Research Center (CICMED), Toluca, MEX, Mexico., Sandoval-Cabrera A; Specialized Hemato-Oncological Laboratory of the Children's Hospital, IMIEM, Toluca, MEX, Mexico., García Vázquez FJ; Laboratory of Immunohistochemistry, National Pediatrics Institute, Coyoacán, MEX, Mexico. |
| Abstrakt: |
The development of breast cancer is influenced by the adipose tissue through the proteins leptin and adiponectin. However, there is little research concerning AdipoR1 and AdipoR2 receptors and the influence of leptin over them. The objective of this work was to analyze the expression of AdipoR1 and AdipoR2, modulated by differential concentrations of leptin in an obesity model (10 ng/mL, 100 ng/mL, and 1000 ng/mL) associated with breast cancer in MCF-7 and HCC1937 cell lines. Each cell line was characterized through immunohistochemistry, and the expression of AdipoR1 and AdipoR2 was analyzed by PCR in real time using TaqMan® probes. Leptin induced an increase in cell population of MCF-7 (23.8%, 10 ng/mL, 48 h) and HCC1937 (17.24%, 1000 ng/mL, 72 h). In MCF-7, the expression of AdipoR1 decreased (3.81%, 1000 ng/mL) and the expression of AdipoR2 increased by 13.74 times (10 ng/mL) with regard to the control. In HCC1937, the expression of AdipoR1 decreased by 86.28% (10 ng/mL), as well as the expression of AdipoR2 (50.3%, 100 ng/mL). In regard to the results obtained, it could be concluded that leptin has an effect over the expression of AdipoR1 and AdipoR2 mRNA. |
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