ABSTRACT Colorectal cancer is the third most common cancer worldwide, and the proportion of individuals diagnosed under the age of 50 years, referred to as early‐onset colorectal cancer (EOCRC), is increasing. The aim of this study was to evaluate how the demographic and clinical features of EOCR in northern Sweden and Finland have changed over time ...
Melina Charalambidi +11 more
wiley +1 more source
Assessing pathogenicity of MLH1 variants by co-expression of human MLH1 and PMS2genes in yeast [PDF]
Abstract Background Loss of DNA mismatch repair (MMR) in humans, mainly due to mutations in the hMLH1 gene, is linked to hereditary nonpolyposis colorectal cancer (HNPCC). Because not all MLH1 alterations result in loss of MMR function, accurate characterization of variants and their classification in terms of their ...
Hudler Petra +4 more
openaire +3 more sources
The
Background Gastric cancer is one of the most common cancers affecting East Asians, and MLH1 could play a critical role during tumorigenesis in this condition.
Zhi Wenxian +6 more
doaj +1 more source
The mismatch repair and meiotic recombination endonuclease Mlh1-Mlh3 is activated by polymer formation and can cleave DNA substrates in trans. [PDF]
Crossing over between homologs is initiated in meiotic prophase by the formation of DNA double-strand breaks that occur throughout the genome. In the major interference-responsive crossover pathway in baker's yeast, these breaks are resected to form 3 ...
Carol M Manhart +5 more
doaj +1 more source
Genomic and Molecular Landscape of DNA Damage Repair Deficiency across The Cancer Genome Atlas [PDF]
DNA damage repair (DDR) pathways modulate cancer risk, progression, and therapeutic response. We systematically analyzed somatic alterations to provide a comprehensive view of DDR deficiency across 33 cancer types.
Alvaro, Domenico +41 more
core +1 more source
ABSTRACT Colorectal cancer (CRC) has raised considerable health concerns worldwide, with increasing incidence rates, specifically among younger populations. Despite remarkable progress in diagnosing and treating various diseases, the genetic basis of CRC remains only partially understood.
Behnaz Bagheri +7 more
wiley +1 more source
Primary constitutional MLH1 epimutations: a focal epigenetic event [PDF]
Constitutional MLH1 epimutations are characterised by monoallelic methylation of the MLH1 promoter throughout normal tissues, accompanied by allele-specific silencing. The mechanism underlying primary MLH1 epimutations is currently unknown. The aim of this study was to perform an in-depth characterisation of constitutional MLH1 epimutations targeting ...
Dámaso, Estela +18 more
openaire +11 more sources
Genetic analysis of primary lung interdigitating dendritic cell sarcomas
Abstract Interdigitating dendritic cell sarcomas (IDCSs) are rare tumors that commonly arise in the hematopoietic system and rarely outside. The genetic drivers of IDCS carcinogenesis are unknown; therefore, therapeutic options are limited. We investigated somatic gene mutations and copy‐number alterations (CNAs) in nine IDCSs arising in the lung by ...
Mikhail S Ermakov +6 more
wiley +1 more source
Cloning of Rat MLH1 and Expression Analysis of MSH2, MSH3, MSH6, and MLH1 during Spermatogenesis
The mismatch repair system has been highly conserved in various species. In eukaryotic cells, the Mut S and Mut L homologues play crucial roles in both DNA mismatch repair and meiotic recombination. A full-length rat cDNA clone for rat MLH1 has been constructed using the RT-PCR method.
Vani, Geeta R, Varghese, CM, Rao, MRS
openaire +2 more sources
Highly sensitive MLH1 methylation analysis in blood identifies a cancer patient with low-level mosaic MLH1 epimutation [PDF]
AbstractConstitutionalMLH1methylation (epimutation) is a rare cause of Lynch syndrome. Low-level methylation (≤ 10%) has occasionally been described. This study aimed to identify low-level constitutionalMLH1epimutations and determine its causal role in patients withMLH1-hypermethylated colorectal cancer.Eighteen patients withMLH1-hypermethylated ...
Estela Dámaso +21 more
openaire +7 more sources

