Abstract
Alterations of microsatellites have been found at relatively high frequency in hereditary and sporadic colorectal cancer and gastric and pancreatic cancers and at lower frequency in some other cancers. We determined the frequency of instability at 39 poly-CA microsatellite loci in 20 squamous cell carcinomas and 26 Barrett's adenocarcinomas of the oesophagus. None of the tumours presented instability for a high percentage of the tested loci. Four squamous cell carcinomas and six Barrett's adenocarcinomas showed microsatellite instability at one locus, and three Barrett's adenocarcinomas showed microsatellite instability at two loci. The presence of few loci showing microsatellite instability could be due to an instability background. We conclude that genetic defects in the DNA mismatch repair system do not play an important role in oesophageal cancers.
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Muzeau, F., Fléjou, J., Belghiti, J. et al. Infrequent microsatellite instability in oesophageal cancers. Br J Cancer 75, 1336–1339 (1997). https://doi.org/10.1038/bjc.1997.226
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DOI: https://doi.org/10.1038/bjc.1997.226
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