Chromosome instability is common in human cleavage-stage embryos - PubMed (original) (raw)

doi: 10.1038/nm.1924. Epub 2009 Apr 26.

Thierry Voet, Cédric Le Caignec, Michèle Ampe, Peter Konings, Cindy Melotte, Sophie Debrock, Mustapha Amyere, Miikka Vikkula, Frans Schuit, Jean-Pierre Fryns, Geert Verbeke, Thomas D'Hooghe, Yves Moreau, Joris R Vermeesch

Affiliations

Free article

Chromosome instability is common in human cleavage-stage embryos

Evelyne Vanneste et al. Nat Med. 2009 May.

Free article

Abstract

Chromosome instability is a hallmark of tumorigenesis. This study establishes that chromosome instability is also common during early human embryogenesis. A new array-based method allowed screening of genome-wide copy number and loss of heterozygosity in single cells. This revealed not only mosaicism for whole-chromosome aneuploidies and uniparental disomies in most cleavage-stage embryos but also frequent segmental deletions, duplications and amplifications that were reciprocal in sister blastomeres, implying the occurrence of breakage-fusion-bridge cycles. This explains the low human fecundity and identifies post-zygotic chromosome instability as a leading cause of constitutional chromosomal disorders.

PubMed Disclaimer

Comment in

Similar articles

Cited by

References

    1. EMBO J. 1998 Jan 2;17(1):325-33 - PubMed
    1. Am J Med Genet. 1999 Jan 29;82(3):265-74 - PubMed
    1. Prenat Diagn. 2005 Oct;25(10):894-900 - PubMed
    1. Nature. 2000 Aug 10;406(6796):641-5 - PubMed
    1. J Med Genet. 2001 Aug;38(8):497-507 - PubMed

Publication types

MeSH terms

LinkOut - more resources