Results 21 to 30 of about 97,151 (260)

Mismatch repair deficiency/microsatellite instability-high as a predictor for anti-PD-1/PD-L1 immunotherapy efficacy

Journal of Hematology & Oncology, 2019
Immunotherapies have led to substantial changes in cancer treatment and have been a persistently popular topic in cancer research because they tremendously improve the efficacy of treatment and survival of individuals with various cancer types.
Pengfei Zhao, Li Li, Xiaoyue Jiang, Qin Li   +3 more
doaj   +1 more source

Prevalence and prognostic role of mismatch repair gene defect in endometrial cancer patients

Tumor Biology, 2017
The study was to evaluate the prevalence of mismatch repair gene defect among Thai patients with endometrial cancer and its association with clinico-pathological features and survivals.
Siriwan Tangjitgamol, Thannaporn Kittisiam, Sujitra Tanvanich   +2 more
doaj   +1 more source

Association of clinicopathological features with DNA mismatch repair status among colorectal cancer patients presenting to a Tertiary Care Cancer Hospital

International Journal of Advanced Medical and Health Research, 2022
Background: About 12%–15% of sporadic colorectal cancers (CRCs) display a defect in the DNA mismatch repair (MMR) system resulting in microsatellite instability (MSI).
Gayathri G Nair, Vijayalakshmi Nair, Usha Mary Abraham   +2 more
doaj   +1 more source

A rapid, simple DNA mismatch repair substrate construction method

Frontiers in Oncology, 2011
A more flexible and higher yielding in vitro DNA mismatch repair (MMR) substrate construction method, which was developed initially by Wang and Hays, is described for the construction of a nucleotide-based chemical mismatch (G/IU) and a G/T mismatch. Our
Timothy James Kinsella, Timothy James Kinsella, Weinan eDu   +2 more
doaj   +1 more source

Intensive surveillance endoscopy for multiple gastrointestinal tumors in a patient with constitutional mismatch repair deficiency: case report

BMC Gastroenterology, 2021
Background Constitutional mismatch repair deficiency (CMMRD) is an extremely rare autosomal recessive hereditary disease characterized by the absence of mismatch repair gene activity from birth, which results in brain tumors, colonic polyposis ...
Takayuki Ando, Takahiko Nakajima, Rei Fukuda, Keiko Nomura, Yo Niida, Miho Sakumura, Iori Motoo, Hiroshi Mihara, Sohachi Nanjo, Shinya Kajiura, Haruka Fujinami, Shojo Hojo, Tsutomu Fujii, Ichiro Yasuda   +13 more
doaj   +1 more source

Unexplained mismatch repair deficiency: Case closed

HGG Advances, 2023
Summary: To identify Lynch syndrome (LS) carriers, DNA mismatch repair (MMR) immunohistochemistry (IHC) is performed on colorectal cancers (CRCs). Upon subsequent LS diagnostics, MMR deficiency (MMRd) sometimes remains unexplained (UMMRd).
Ellis L. Eikenboom, Sarah Moen, Lotte van Leeuwen, Willemina R.R. Geurts-Giele, Carli M.J. Tops, Tjakko J. van Ham, Winand N.M. Dinjens, Hendrikus J. Dubbink, Manon C.W. Spaander, Anja Wagner   +9 more
doaj   +1 more source

The Eukaryotic Mismatch Recognition Complexes Track with the Replisome during DNA Synthesis.

PLoS Genetics, 2015
During replication, mismatch repair proteins recognize and repair mispaired bases that escape the proofreading activity of DNA polymerase. In this work, we tested the model that the eukaryotic mismatch recognition complex tracks with the advancing ...
Joanna E Haye, Alison E Gammie
doaj   +1 more source

Deficient mismatch repair and RAS mutation in colorectal carcinoma patients: a retrospective study in Eastern China [PDF]

PeerJ, 2018
Objectives To investigate the frequency and prognostic role of deficient mismatch repair (dMMR) and RAS mutation in Chinese patients with colorectal carcinoma.
Xiangyan Zhang, Wenwen Ran, Jie Wu, Hong Li, Huamin Liu, Lili Wang, Yujing Xiao, Xiaonan Wang, Yujun Li, Xiaoming Xing   +9 more
doaj   +2 more sources

Epigenetic blind spots – the role of DNA methylation dynamics in stem cell‐based models of embryogenesis

FEBS Letters, EarlyView.
Embryo‐like structures (stembryos) are an innovative tool, but they are hindered by experimental variability and limited developmental potential. DNA methylation is crucial for mammalian development, but its status in stembryo models is poorly characterized.
Sara Canil, Anna Corrà, Annalisa Scapolatiello, Chengxiang Qiu, Gianluca Amadei   +4 more
wiley   +1 more source

Mismatch Repair Deficiency and Microsatellite Instability

Encyclopedia, 2022
Mismatch repair deficiency (MMRd) is caused by the biallelic inactivation of an MMR gene, which can be attributed either to an inherited or an acquired pathway.
Sandra Schöniger, Josef Rüschoff
doaj   +1 more source