Felipe Vilella

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In this study we analyze the participation of the PKC1-MAPK cell integrity pathway in cellular responses to oxidative stress in Saccharomyces cerevisiae. Evidence is presented demonstrating that only Pkc1 and the upstream elements of the cell integrity pathway are essential for cell survival upon treatment with two oxidizing agents, diamide and hydrogen(More)
This article highlights the need for methods to objectively diagnose endometrial receptivity as a factor contributing to infertility in female patients. The correct identification of the appropriate window of implantation in a given patient, by using endometrial receptivity biomarkers, can help to prevent reproductive failure resulting from misplaced timing(More)
The canonical and noncanonical NFκB signaling pathways regulate a variety of cellular activities; however, their functions in human embryonic stem cells (hESCs) have not been fully investigated. Expression studies during hESC differentiation indicated a significant increase in the expression of two key components of the canonical NFκB pathway (p50 and(More)
Annexin A2 (ANXA2) is present in vivo in the mid- and late-secretory endometria and is mainly localized in the luminal epithelium. Our aim was to evaluate its function in regulating the human implantation process. With an in vitro adhesion model, constructed to evaluate how the mouse embryo and JEG-3 spheroids attach to human endometrial epithelial cells,(More)
A precise understanding of mechanisms used by human embryonic stem cells (hESCs) to maintain genomic integrity is very important for their potential clinical applications. The G1 checkpoint serves to protect genomic integrity and prevents cells with damaged DNA from entering S-phase. Previously, we have shown that downregulation of cyclin-dependent kinase 2(More)
During embryo implantation, the blastocyst interacts with and regulates the endometrium, and endometrial fluid secreted by the endometrial epithelium nurtures the embryo. Here, we propose that maternal microRNAs (miRNAs) might act as transcriptomic modifier of the pre-implantation embryo. Microarray profiling revealed that six of 27 specific, maternal(More)
Extensive evidence suggests that soluble ligands and their receptors mediate human preimplantation embryo development and implantation. Progress in this complex area has been ongoing since the 1980s, with an ever-increasing list of candidates. This article specifically reviews evidence of soluble ligands and their receptors in the human preimplantation(More)
A number of bacterial species, mostly proteobacteria, possess monothiol glutaredoxins homologous to the Saccharomyces cerevisiae mitochondrial protein Grx5, which is involved in iron-sulphur cluster synthesis. Phylogenetic profiling is used to predict that bacterial monothiol glutaredoxins also participate in the iron-sulphur cluster (ISC) assembly(More)
MicroRNAs, also called miRNAs, are small 19-22 nucleotide (nt) sequences of noncoding RNA that work as endogenous epigenetic gene expression regulators. They are transcribed as large primary miRNAs or pre-miRNAs by RNA polymerase II and III, and are subsequently processed by the ribonucleases Drosha and Dicer to give rise to their mature forms. These mature(More)
From the first histologic dating methods to the new "-omics" technologies, there has been a lot of effort put into understanding and characterizing receptive endometrium. The development of new diagnostic approaches to using biologic fluids has opened up a new field of investigation in noninvasive endometrial diagnosis techniques. Moreover, improvements in(More)