Results 21 to 30 of about 42,721 (245)

Signalling cell cycle arrest and cell death through the MMR System [PDF]

open access: yes, 2006
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

Mismatch repair deficiency endows tumors with a unique mutation signature and sensitivity to DNA double-strand breaks

open access: yeseLife, 2014
DNA replication errors that persist as mismatch mutations make up the molecular fingerprint of mismatch repair (MMR)-deficient tumors and convey them with resistance to standard therapy.
Hui Zhao   +16 more
doaj   +1 more source

Preoperative contrast-enhanced CT imaging and clinicopathological characteristics analysis of mismatch repair-deficient colorectal cancer

open access: yesCancer Imaging, 2023
Background Colorectal cancer (CRC) can develop through various pathogenetic pathways, and one of the primary pathways is high microsatellite instability (MSI-H)/deficient mismatch repair (dMMR).
Shuai Chen   +7 more
doaj   +1 more source

Epimutation in DNA Mismatch Repair (MMR) Genes [PDF]

open access: yes, 2013
Generally, disease susceptibility is determined based on changes not only in DNA sequen‐ ces but also in the activities of genes and chromosomal regions. Epigenetic regulation has attracted attention as a mechanism underlying changes of activities of genes and chromoso‐ mal regions.
Kouji Banno   +9 more
openaire   +1 more source

Sensing and Processing of DNA Interstrand Crosslinks by the Mismatch Repair Pathway

open access: yesCell Reports, 2017
Summary: DNA interstrand crosslinks (ICLs) that are repaired in non-dividing cells must be recognized independently of replication-associated DNA unwinding. Using cell-free extracts from Xenopus eggs that support neither replication nor transcription, we
Niyo Kato   +11 more
doaj   +1 more source

Involvement of DNA mismatch repair in the maintenance of heterochromatic DNA stability in Saccharomyces cerevisiae. [PDF]

open access: yesPLoS Genetics, 2017
Heterochromatin contains a significant part of nuclear DNA. Little is known about the mechanisms that govern heterochromatic DNA stability. We show here that in the yeast Saccharomyces cerevisiae (i) DNA mismatch repair (MMR) is required for the ...
Basanta K Dahal   +6 more
doaj   +1 more source

Concordance between microsatellite instability and mismatch repair protein expression in colorectal cancer and their clinicopathological characteristics: a retrospective analysis of 502 cases

open access: yesFrontiers in Oncology, 2023
Microsatellite instability (MSI) is one of the hallmarks of colorectal cancer (CRC). Mismatch repair (MMR) protein expression may reflect MSI status.
Meihua Ye   +6 more
doaj   +1 more source

Synthesis and Quantitative Structure–Activity Relationship of Imidazotetrazine Prodrugs with Activity Independent of O6-Methylguanine-DNA-methyltransferase, DNA Mismatch Repair and p53. [PDF]

open access: yes, 2013
The antitumor prodrug Temozolomide is compromised by its dependence for activity on DNA mismatch repair (MMR) and the repair of the chemosensitive DNA lesion, O6-methylguanine (O6-MeG), by O6-methylguanine-DNA-methyltransferase (EC 2.1.1.63, MGMT). Tumor
Arris C. E.   +42 more
core   +1 more source

MutSα and MutLα immunoexpression analysis in diagnostic grading of oral epithelial dysplasia and squamous cell carcinoma [PDF]

open access: yes, 2014
Objectives. This study explored the expression of DNA mismatch repair (MMR) proteins in a range of oral biopsies. We further evaluated the significance of MMR protein expression combined with basic demographic data in differentiating grades of oral ...
Dalley, A. J., Farah, C. S., Jessri, M.
core   +1 more source

DNA Mismatch Repair (MMR) Genes and Endometrial Cancer [PDF]

open access: yes, 2011
The incidence of endometrial cancer among malignant gynecological tumors has increased with lifestyle and environmental changes. In the US, 40,000 patients are diagnosed with endometrial cancer annually, and 7,500 patients die of this disease (Jemal et al., 2009).
Kenta Masuda   +10 more
openaire   +1 more source

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