期刊
CLINICAL GENETICS
卷 94, 期 1, 页码 61-69出版社
WILEY
DOI: 10.1111/cge.13205
关键词
CMMRD; DNA mismatch repair; Lynch syndrome; PMS2; pseudogene; variants of uncertain significance
资金
- National Institute of Environmental Health Sciences [5R00ES024417-05]
DNA repair pathways are essential for cellular survival as our DNA is constantly under assault from both exogenous and endogenous DNA damaging agents. Five major mammalian DNA repair pathways exist within a cell to maintain genomic integrity. Of these, the DNA mismatch repair (MMR) pathway is highly conserved among species and is well documented in bacteria. In humans, the importance of MMR is underscored by the discovery that a single mutation in any 1 of 4 genes within the MMR pathway (MLH1, MSH2, MSH6 and PMS2) results in Lynch syndrome (LS). LS is a autosomal dominant condition that predisposes individuals to a higher incidence of many malignancies including colorectal, endometrial, ovarian, and gastric cancers. In this review, we discuss the role of PMS2 in the MMR pathway, the evolving testing criteria used to identify variants in the PMS2 gene, the LS phenotype as well as the autosomal recessive condition called constitutional mismatch repair deficiency syndrome, and current methods used to elucidate the clinical impact of PMS2 mutations.
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