Loss of heterozygosity in DNA mismatch repair genes in human atherosclerotic plaques
Date
2001Sujet
Résumé
To detect the incidence of loss of heterozygosity (LOH) in DNA mismatch repair genes (MMR) occurring in atherosclerosis, fifty human autopsy cases of atherosclerosis were examined for LOH using 19 microsatellite markers, in three single and four tetraplex microsatellite assays. The markers used are located on or close to MMR genes. Fourteen specimens (28%) showed allelic imbalance in at least one locus. Loci hMSH2 (2p22.3-p16.1), hPMS1 (2q24.1-q32.1), and hMLH1 (3p21.32-p21.1) exhibited LOH (10, 10, and 12% respectively). We found that loss of heterozygosity on hMSH2, hPMS1, and hMLH1, occurs in atherosclerosis. The occurrence of such genomic alterations may represent important events in the development of atherosclerosis. © 2000 Academic Press.
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