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Mostrando ítems 11-20 de 66
Artículo
The effect of atypical nucleic acids structures in DNA double strand break repair: a tale of R-loops and G-quadruplexes
(Frontiers Media S.A., 2021)
The fine tuning of the DNA double strand break repair pathway choice relies on different regulatory layers that respond to environmental and local cues. Among them, the presence of non-canonical nucleic acids structures ...
Artículo
Molecular Pathways Leading to Induction of Cell Death and Anti-Proliferative Properties by Tacrolimus and mTOR Inhibitors in Liver Cancer Cells
(1421-9778, 2020)
Background/Aims: Orthotopic liver transplantation (OLT) is the recommended treatment for patients at early stages of hepatocarcinoma (HCC) with portal hypertension and/or increased bilirubinemia, but without ...
Artículo
Multivalent Calixarene-Based Liposomes as Platforms for Gene and Drug Delivery
(MDPI, 2021-08)
The formation of calixarene-based liposomes was investigated, and the characterization of these nanostructures was carried out using several techniques. Four amphiphilic calixarenes were used. The length of the hydrophobic ...
Artículo
BRCA2 promotes DNA-RNA hybrid resolution by DDX5 helicase at DNA breaks to facilitate their repair
(Wiley-Blackwell, 2021)
The BRCA2 tumor suppressor is a DNA double-strand break (DSB) repair factor essential for maintaining genome integrity. BRCA2-deficient cells spontaneously accumulate DNA-RNA hybrids, a known source of genome instability. ...
Artículo
Single cell analysis of bistable expression of pathogenicity island 1 and the flagellar regulon in Salmonella enterica
(MDPI, 2021-01)
Bistable expression of the Salmonella enterica pathogenicity island 1 (SPI-1) and the flagellar network (Flag) has been described previously. In this study, simultaneous monitoring of OFF and ON states in SPI-1 and in the ...
Artículo
Genome-Wide Identification and Expression Analysis of SOS Response Genes in Salmonella enterica Serovar Typhimurium
(Multidisciplinary Digital Publishing Institute (MDPI), 2021)
A bioinformatic search for LexA boxes, combined with transcriptomic detection of loci responsive to DNA damage, identified 48 members of the SOS regulon in the genome of Salmonella enterica serovar Typhimurium. Single cell ...
Artículo
Tubulin Folding Cofactor TBCB is a Target of the Salmonella Effector Protein SseK1
(MDPI, 2020)
Salmonella enterica serovar Typhimurium is a human and animal pathogen that uses type III secretion system effectors to manipulate the host cell and fulfill infection. SseK1 is a Salmonella effector with glycosyltransferase ...
Artículo
Contribution of DNA adenine methylation to gene expression heterogeneity in Salmonella enterica
(Oxford University Press, 2020)
Expression of Salmonella enterica loci harboring undermethylated GATC sites at promoters or regulatory regions was monitored by single cell analysis. Cell-to-cell differences in expression were detected in ten such loci ...
Artículo
UBQLN4 Represses Homologous Recombination and Is Overexpressed in Aggressive Tumors
(Elsevier, 2020)
Genomic instability can be a hallmark of both human genetic disease and cancer. We identify a deleterious UBQLN4 mutation in families with an autosomal recessive syndrome reminiscent of genome instability disorders. UBQLN4 ...
Artículo
UAP56/DDX39B is a major cotranscriptional RNA–DNA helicase that unwinds harmful R loops genome-wide
(Cold Spring Harbor Laboratory Press, 2020)
Nonscheduled R loops represent a major source of DNA damage and replication stress. Cells have different ways to prevent R-loop accumulation. One mechanism relies on the conserved THO complex in association with cotranscriptional ...