Results 31 to 40 of about 124,795 (370)

Aberrant methylation within RUNX3 CpG island associated with the nuclear and mitochondrial microsatellite instability in sporadic gastric cancers. Results of a GOIM (Gruppo Oncologico dell'Italia Meridionale) prospective study. [PDF]

open access: yes, 2007
Gastric cancer (GC) development is a multistep process, during which numerous alterations accumulate in nuclear and mitochondrial DNA. A deficiency of repair machinery brings about an accumulation of errors introduced within simple repetitive ...
Agnese, V.   +13 more
core   +1 more source

Microsatellite Instability in Yeast: Dependence on the Length of the Microsatellite [PDF]

open access: yesGenetics, 1997
One of the most common microsatellites in eukaryotes consists of tandem arrays [usually 15-50 base pairs (bp) in length] of the dinucleotide GT. We examined the rates of instability for poly GT tracts of 15, 33, 51, 99 and 105 bp in wild-type and mismatch repair-deficient strains of Saccharomyces cerevisiae. Rates of instability increased more than two
Monika Wierdl   +2 more
openaire   +2 more sources

Prognostic value of SLC4A4 and its correlation with the microsatellite instability in colorectal cancer

open access: yesFrontiers in Oncology, 2023
ObjectiveTo explore new biomarkers related to microsatellite instability in order to better predict prognosis and guide medication.MethodsThe “limma” R package was used to identify differentially expressed genes in GSE24514, and then weighted correlation
Shaorui Rui   +6 more
doaj   +1 more source

Frequency of Microsatellite Instability in Unselected Sebaceous Gland Neoplasias and Hyperplasias [PDF]

open access: yes, 2003
Sebaceous gland neoplasias are the cutaneous manifestation of the Muir–Torre syndrome, which is known to be a phenotypical variant of hereditary nonpolyposis colorectal cancer.
Bisceglia, Michele   +8 more
core   +1 more source

The degree of microsatellite instability predicts response to PD-1 blockade immunotherapy in mismatch repair-deficient/microsatellite instability-high colorectal cancers

open access: yesExperimental Hematology & Oncology, 2021
The development of programmed cell death-1 inhibitor (PD-1) has shed light on the treatment of tumors with deficiencies in DNA mismatch repair system or microsatellite instability (dMMR/MSI). However, predicting the subset in this group that will benefit
Qiao-Xuan Wang   +6 more
doaj   +1 more source

DeepSMILE: Contrastive self-supervised pre-training benefits MSI and HRD classification directly from H&E whole-slide images in colorectal and breast cancer [PDF]

open access: yesMedical Image Analysis Volume 79, July 2022, 102464, 2021
We propose a Deep learning-based weak label learning method for analyzing whole slide images (WSIs) of Hematoxylin and Eosin (H&E) stained tumor tissue not requiring pixel-level or tile-level annotations using Self-supervised pre-training and heterogeneity-aware deep Multiple Instance LEarning (DeepSMILE).
arxiv   +1 more source

Does sex of the patient play a role in survival for MSI colorectal cancer? [PDF]

open access: yes, 2018
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

Role of microsatellite instability in colon cancer

open access: yesТазовая хирургия и онкология, 2015
Coloncancer is among leading causes of cancer morbidity and mortality both inRussiaand worldwide. Development of molecular biology lead to decoding of carcinogenesis and tumor progression mechanisms.
M. Yu. Fedyanin   +2 more
doaj   +1 more source

Extended microsatellite analysis in microsatellite stable, MSH2 and MLH1 mutation-negative HNPCC patients: Genetic reclassification and correlation with clinical features [PDF]

open access: yes, 2004
Background: Hereditary nonpolyposis colorectal cancer (HNPCC) is an autosomal dominant disorder predisposing to predominantly colorectal cancer (CRC) and endometrial cancer frequently due to germline mutations in DNA mismatch repair (MMR) genes, mainly ...
Baretton, G.   +9 more
core   +1 more source

Profiling diverse sequence tandem repeats in colorectal cancer reveals co-occurrence of microsatellite and chromosomal instability involving Chromosome 8

open access: yesGenome Medicine, 2021
We developed a sensitive sequencing approach that simultaneously profiles microsatellite instability, chromosomal instability, and subclonal structure in cancer. We assessed diverse repeat motifs across 225 microsatellites on colorectal carcinomas.
GiWon Shin   +10 more
doaj   +1 more source

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