The DNA mismatch repair (MMR) pathway and its regulation are critical for genomic stability. Mismatch repair (MMR) follows replication and repairs misincorporated bases and small insertions or deletions that are not recognized and removed by the ...
Hannah G. Daniels +8 more
doaj +1 more source
Signalling cell cycle arrest and cell death through the MMR System [PDF]
Loss of DNA mismatch repair (MMR) in mammalian cells, as well as having a causative role in cancer, has been linked to resistance to certain DNA damaging agents including clinically important cytotoxic chemotherapeutics.
Brown, R., O'Brien, V.
core +1 more source
Specific variants in the MLH1 gene region may drive DNA methylation, loss of protein expression, and MSI-H colorectal cancer. [PDF]
We previously identified an association between a mismatch repair gene, MLH1, promoter SNP (rs1800734) and microsatellite unstable (MSI-H) colorectal cancers (CRCs) in two samples.
Miralem Mrkonjic +21 more
doaj +1 more source
Factors modifying the risk for developing acute skin toxicity after whole-breast intensity modulated radiotherapy [PDF]
Background: After breast-conserving radiation therapy most patients experience acute skin toxicity to some degree. This may impair patients' quality of life, cause pain and discomfort. In this study, we investigated treatment and patient-related factors,
De Langhe, Sofie +9 more
core +2 more sources
Several causes may lead to CRC, either extrinsic (sporadic forms) or genetic (hereditary forms), such as Lynch syndrome (LS). Most sporadic deficient mismatch repair (dMMR) CRC cases are characterized by the methylation of the MLH1 promoter gene and/or ...
Thais Maloberti +15 more
doaj +1 more source
Mutator Phenotypes Conferred by MLH1Overexpression and by Heterozygosity for mlh1Mutations [PDF]
Loss of DNA mismatch repair due to mutation or diminished expression of the MLH1 gene is associated with genome instability and cancer. In this study, we used a yeast model system to examine three circumstances relevant to modulation of MLH1 function.
P V, Shcherbakova, T A, Kunkel
openaire +2 more sources
Tumor-associated Apc mutations in Mlh1−/−Apc1638N mice reveal a mutational signature of Mlh1 deficiency [PDF]
Apc1638N mice, which are heterozygous for a germline mutation in Apc, typically develop three to five spontaneous intestinal tumors per animal. In most cases this is associated with allelic loss of wildtype Apc. We have previously reported that the multiplicity of intestinal tumors is increased dramatically by crossing Apc1638N with an Mlh1-deficient ...
M, Kuraguchi +5 more
openaire +2 more sources
Estradiol regulates miR-135b and mismatch repair gene expressions via estrogen receptor-β in colorectal cells. [PDF]
Estrogen has anti-colorectal cancer effects which are thought to be mediated by mismatch repair gene (MMR) activity. Estrogen receptor (ER) expression is associated with microRNA (miRNA) expression in ER-positive tumors.
Fu, Lei +6 more
core +1 more source
Does sex of the patient play a role in survival for MSI colorectal cancer? [PDF]
Microsatellite instability (MSI) is a feature of colorectal tumors that develops as a result of inactivation of the DNA mismatch repair system. It is found in about 15% of all colorectal cancers and is an important prognostic molecular marker when ...
Alecu, Lucian +11 more
core +3 more sources
Lynch Syndrome Associated with Two MLH1 Promoter Variants and Allelic Imbalance of MLH1 Expression [PDF]
Lynch syndrome is a hereditary cancer syndrome caused by a constitutional mutation in one of the mismatch repair genes. The implementation of predictive testing and targeted preventative surveillance is hindered by the frequent finding of sequence variants of uncertain significance in these genes.
Fields, Michael +9 more
openaire +4 more sources

