| Autor: |
Ramírez De Arellano A; Doctorate Program in Biomedical Sciences, University Center for Health Sciences, University of Guadalajara, Guadalajara, Jalisco, Mexico., Riera Leal A; Doctorate Program in Biomedical Sciences, University Center for Health Sciences, University of Guadalajara, Guadalajara, Jalisco, Mexico., Lopez-Pulido EI; Department of Clinics, University Center of Los Altos, Tepatitlan de Morelos, University of Guadalajara, Guadalajara, Jalisco, Mexico., González-Lucano LR; Institute of Technology and Higher Education of Monterrey, Campus Guadalajara, Zapopan, Jalisco, Mexico., Macías Barragan J; Department of Health Sciences, University Center of Los Valles, University of Guadalajara, Ameca, Jalisco, Mexico., Del Toro Arreola S; Department of Physiology, University Center for Health Sciences, University of Guadalajara, Guadalajara, Jalisco, Mexico., García-Chagollan M; Research Institute in Biomedical Sciences, University Center for Health Sciences, University of Guadalajara, Guadalajara, Jalisco, Mexico., Palafox-Sánchez CA; Research Institute in Biomedical Sciences, University Center for Health Sciences, University of Guadalajara, Guadalajara, Jalisco, Mexico., Muñoz-Valle JF; Research Institute in Biomedical Sciences, University Center for Health Sciences, University of Guadalajara, Guadalajara, Jalisco, Mexico., Pereira-Suárez AL; Department of Physiology, University Center for Health Sciences, University of Guadalajara, Guadalajara, Jalisco, Mexico. |
| Abstrakt: |
Prolactin (PRL) is associated with different types of cancer, such as cervical cancer. Recombinant PRL has antiapoptotic effect on cervical cancer cells, and it can also induce cytokine production on macrophages. A 60 kDa variant of PRL is produced by cervical cancer cells. The aim of the present study was to evaluate this variant's bioactivity, to test its effect on cervical cancer cell apoptosis, and to assess its ability to induce cytokine production on THP-1 macrophages. First, 60 kDa PRL was isolated and used to stimulate Nb2 cells. Later, apoptosis was measured after exposure to 60 kDa PRL. Finally, cytokines were measured on THP-1 stimulated supernatants. Our results show that 60 kDa PRL increased Nb2 cell proliferation. Apoptosis was decreased after stimuli with 60 kDa PRL in cervical cancer cells. IL-1β and TNF-α are produced by THP-1 macrophages after stimuli. These results suggest that 60 kDa PRL produced by cervical cancer cells is able to reduce apoptosis in HeLa, SiHa and C-33A cells and induce IL-1β and TNF-α production by THP-1 macrophages. |
