Sensitivity to radiation and alkylating agent of peripheral lymphocytes and fibroblasts in a Hoyeraal-Hreidarsson syndrome patient

Radhia M'kacher, Veronique Laithier, Alexandre Valent, Francois Delhommeau, Dominique Violot, Eric Deutsch, Julien Dossou, Nadine Béron-Gaillard, Theodore Girinsky, Jean Bourhis, Patrice Carde, Alain Bernheim, Claude Parmentier

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    Abstract

    Hoyeraal-Hreidarsson syndrome (HHS) is a severe infantile variant of X-linked dyskeratosis congenita (DC). The authors report evidence of increased in vitro sensitivity to radiation and alkylating agent in circulating lymphocytes and fibroblasts obtained from a 7-year-old boy with HHS. A major telomere shortening was also found (3 kb) as compared to healthy donors (10 kb). The standard treatments, chemotherapy regimens, and radiation therapy were not possible. The data suggest that conditioning regimens including TBI should not be used when a bone marrow transplantation procedure is planned in these patients.

    Original languageEnglish
    Pages (from-to)651-656
    Number of pages6
    JournalPediatric Hematology and Oncology
    Volume20
    Issue number8
    DOIs
    Publication statusPublished - 1 Jan 2003

    Keywords

    • Bone marrow transplantation
    • Hoyeraal-Hreidarsson syndrome
    • Radiation sensitivity
    • Telomere length

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