Nature Communications (May 2020)

Somatic mTOR mutation in clonally expanded T lymphocytes associated with chronic graft versus host disease

  • Daehong Kim,
  • Giljun Park,
  • Jani Huuhtanen,
  • Sofie Lundgren,
  • Rajiv K. Khajuria,
  • Ana M. Hurtado,
  • Cecilia Muñoz-Calleja,
  • Laura Cardeñoso,
  • Valle Gómez-García de Soria,
  • Tzu Hua Chen-Liang,
  • Samuli Eldfors,
  • Pekka Ellonen,
  • Sari Hannula,
  • Matti Kankainen,
  • Oscar Bruck,
  • Anna Kreutzman,
  • Urpu Salmenniemi,
  • Tapio Lönnberg,
  • Andrés Jerez,
  • Maija Itälä-Remes,
  • Mikko Myllymäki,
  • Mikko A. I. Keränen,
  • Satu Mustjoki

DOI
https://doi.org/10.1038/s41467-020-16115-w
Journal volume & issue
Vol. 11, no. 1
pp. 1 – 17

Abstract

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Chronic graft versus host disease (cGvHD) is a major cause of morbidity and mortality in allogeneic bone marrow transplantation. Here the authors identify a recurrent activating mTOR mutation in expanded donor T-cell clones of 3 cGvHD patients, which suggests somatic mutations may contribute to GvHD pathogenesis and opens avenues to targeted therapies.