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Mutation spectrum in South American Lynch syndrome families

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Author

  • Mev Dominguez
  • Mef Nilbert
  • Patrik Wernhoff
  • Francisco Lopez-Koestner
  • Carlos Vaccaro
  • Carlos Sarroca
  • Edenir Ines Palmero
  • Alejandro Giraldo
  • Patricia Ashton-Prolla
  • Karin Alvarez
  • Alejandra Ferro
  • Florencia Neffa
  • Junea Caris
  • Dirce M. Carraro
  • Benedito M. Rossi
Show all

Summary, in English

Background: Genetic counselling and testing for Lynch syndrome have recently been introduced in several South American countries, though yet not available in the public health care system. Methods: We compiled data from publications and hereditary cancer registries to characterize the Lynch syndrome mutation spectrum in South America. In total, data from 267 families that fulfilled the Amsterdam criteria and/or the Bethesda guidelines from Argentina, Brazil, Chile, Colombia and Uruguay were included. Results: Disease-predisposing mutations were identified in 37% of the families and affected MLH1 in 60% and MSH2 in 40%. Half of the mutations have not previously been reported and potential founder effects were identified in Brazil and in Colombia. Conclusion: The South American Lynch syndrome mutation spectrum includes multiple new mutations, identifies potential founder effects and is useful for future development of genetic testing in this continent.

Publishing year

2013

Language

English

Publication/Series

Hereditary Cancer in Clinical Practice

Volume

11

Document type

Journal article

Publisher

Termedia Publishing House Ltd.

Topic

  • Cancer and Oncology

Keywords

  • Lynch syndrome
  • MLH1
  • MSH2
  • South America
  • Mutation

Status

Published

Research group

  • Muscle Biology

ISBN/ISSN/Other

  • ISSN: 1897-4287