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Somatic mosaic IDH1 and IDH2 mutations are associated with enchondroma and spindle cell hemangioma in Ollier disease and Maffucci syndrome

In English

Författare

  • Twinkal C. Pansuriya
  • Ronald van Eijk
  • Pio d'Adamo
  • Maayke A. J. H. van Ruler
  • Marieke L. Kuijjer
  • Jan Oosting
  • Anne-Marie Cleton-Jansen
  • Jolieke G. van Oosterwijk
  • Sofie L. J. Verbeke
  • Danielle Meijer
  • Tom van Wezel
  • Karolin Hansén Nord
  • Luca Sangiorgi
  • Berkin Toker
  • Bernadette Liegl-Atzwanger
  • Mikel San-Julian
  • Raf Sciot
  • Nisha Limaye
  • Lars-Gunnar Kindblom
  • Soeren Daugaard
  • Catherine Godfraind
  • Laurence M. Boon
  • Miikka Vikkula
  • Kyle C. Kurek
  • Karoly Szuhai
  • Pim J. French
  • Judith V. M. G. Bovee
Visa allt

Summary, in English

Ollier disease and Maffucci syndrome are non-hereditary skeletal disorders characterized by multiple enchondromas (Ollier disease) combined with spindle cell hemangiomas (Maffucci syndrome). We report somatic heterozygous mutations in IDH1 (c.394C>T encoding an R132C substitution and c.395G>A encoding an R132H substitution) or IDH2 (c.516G>C encoding R172S) in 87% of enchondromas (benign cartilage tumors) and in 70% of spindle cell hemangiomas (benign vascular lesions). In total, 35 of 43 (81%) subjects with Ollier disease and 10 of 13 (77%) with Maffucci syndrome carried IDH1 (98%) or IDH2 (2%) mutations in their tumors. Fourteen of 16 subjects had identical mutations in separate lesions. Immunohistochemistry to detect mutant IDH1 R132H protein suggested intraneoplastic and somatic mosaicism. IDH1 mutations in cartilage tumors were associated with hypermethylation and downregulated expression of several genes. Mutations were also found in 40% of solitary central cartilaginous tumors and in four chondrosarcoma cell lines, which will enable functional studies to assess the role of IDH1 and IDH2 mutations in tumor formation.

Publiceringsår

2011

Språk

Engelska

Sidor

1256-1261

Publikation/Tidskrift/Serie

Nature Genetics

Volym

43

Issue

12

Dokumenttyp

Artikel i tidskrift

Förlag

Nature Publishing Group

Ämne

  • Medical Genetics

Status

Published

Forskningsgrupp

  • Genetic chaos in aggressive cancer

ISBN/ISSN/Övrigt

  • ISSN: 1546-1718