Luz Dary Gutierrez-Castañeda

Functions, interactions and prognostic role of POLE: a bioinformatics analysis

To describe We retrieved reported mutations for Thirty mutations in POLE were retrieved, most reported mutations were p.P286R, p.V411L and p.A456P, these mutations were likely to be pathogenic. Network analysis of POLE showed interaction of this protein in biological processes such as DNA repair, the cell proliferation cycle, and mechanisms of resistance to platinum. Immune infiltration analysis showed that T cell CD8+, T cell memory activated CD4+, T cell follicular helper, T cell gamma delta and macrophage M1 were more infiltrated in EC Mutations in POLE might affect DNA polymerase epsilon function. These mutations also affect interactions with other proteins like proteins involved in different DNA repairing mechanisms.

Isolation and phenotypic characterization of tumor cells of patients with a diagnosis of ovarian cancer

AbstractOvarian cancer is the fifth leading cause of cancer‐related deaths. It causes approximately 125,000 deaths per year worldwide; its diagnosis is made in advanced stages resulting in a high mortality rate. The objective of the study was optimizing the isolation of cells obtained from the solid tumor and ascitic fluid of patients with ovarian cancer and the phenotype with markers related to the epithelial–mesenchymal transition. For this, the solid tumor tissue was disaggregated and cultivated with different methodologies. As a result, cell growth was obtained and epi‐immunofluorescence was performed using antibodies against E‐cadherin, EpCAM, N‐cadherin, vimentin, CD133, and CD44. The primary culture from the solid tumor was obtained using Dispase II and DMEM/F12. Finally, heterogeneity was detected in terms of the expression of mesenchymal and epithelial type markers in the two types of isolated cells. Additionally, CD133 and CD44 expression was detected, proteins associated with the tumor stem cells phenotype.