Molecular Genetics and Genomics

, Volume 290, Issue 6, pp 2213–2216 | Cite as

Chromothripsis with at least 12 breaks at 1p36.33-p35.3 in a boy with multiple congenital anomalies

  • Bruno Faulin Gamba
  • Antônio Richieri-Costa
  • Silvia Costa
  • Carla Rosenberg
  • Lucilene Arilho Ribeiro-Bicudo
Original Paper

Abstract

Terminal deletion in the short arm of chromosome 1 results in a disorder described as 1p36 deletion syndrome. The resulting phenotype varies among patients including mental retardation, developmental delay, sensorineural hearing loss, seizures, heart defects, and distinct facies. In the present case, we performed array-comparative genomic hybridization in a boy with multiple congenital malformations presenting some features overlapping the 1p36 deletion phenotype for whom chromosomal analysis did not reveal a terminal deletion in 1p. Results showed complex chromosome rearrangements involving the 1p36.33-p35.3 region. While the mechanism of origin of these rearrangements is still unclear, chromothripsis—a single catastrophic event leading to shattering chromosomes or chromosome regions and rejoining of the segments—has been described to occur in a fraction of cancers. The presence of at least 12 clustered breaks at 1p and apparent lack of mosaicism in the present case suggests that a single event like chromothripsis occurred. This finding suggests that chromothripsis is responsible for some constitutive complex chromosome rearrangements.

Keywords

Complex chromosomal rearrangement Multiple congenital anomalies Array-CGH Chromothripsis 

Notes

Acknowledgments

We thank the patient and his mother for their cooperation. Genetics analysis was supported by grants from the Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (2010/18740-2 and 2011/07012-9) and Conselho Nacional de Desenvolvimento Cientifico e Tecnológico (306741/2012-1).

Conflict of interest

The authors declare that they have no conflict of interest.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2015

Authors and Affiliations

  • Bruno Faulin Gamba
    • 1
  • Antônio Richieri-Costa
    • 2
  • Silvia Costa
    • 3
  • Carla Rosenberg
    • 3
  • Lucilene Arilho Ribeiro-Bicudo
    • 1
    • 4
  1. 1.Department of Genetics, Institute of BiosciencesUniversity of São Paulo StateBotucatuBrazil
  2. 2.Syndromology Division, Hospital for Rehabilitation of Craniofacial Anomalies (HRAC)University of São PauloBauruBrazil
  3. 3.Department of Genetics and Evolutionary Biology, Institute of BiosciencesUniversity of São PauloSão PauloBrazil
  4. 4.Department of Genetics, Institute of BiosciencesFederal University of GoiasGoiâniaBrazil

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