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Updated: Oct 19, 2026

Proofreading and DNA Repair Assay Using Single Nucleotide Extension and MALDI-TOF Mass Spectrometry Analysis
Published on: June 19, 2018
Expression of DNA mismatch repair genes in naevi
M Korabiowska1, U Brinck, I Ruschenburg
1Department of Cytopathology, Georg-August University, Göttingen, Germany.
Abstract:
The significant difference of DNA mismatch repair genes expression between naevi and melanomas was demonstrated by our research group in the previous study. The main aim of this study was to compare the expression of MLH1, MSH2, PMS1 and PMS2 in 31 naevus cell naevi, 12 fibromatous naevi and 30 dysplastic naevi. The expression of DNA mismatch repair proteins was found in all naevi investigated. However, the expression (percentage of positively stained cells) was significantly higher in naevus cell naevi than in dysplastic and fibromatous ones.
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