| Title | An activating mutation in the CSF3R gene induces a hereditary chronic neutrophilia. | | Author(s) | Plo I, Zhang Y, Le Couédic JP, Nakatake M, Boulet JM, Itaya M, Smith SO, Debili N, Constantinescu SN, Vainchenker W, Louache F, de Botton S | | Institution | Research Laboratory on Hematopoiesis and Normal and Leukemic Stem Cells, U790, Institut National de la Santé et de la Recherche Médicale, 94805 Villejuif, France. | | Source | J Exp Med 2009 Jul 20. | | Abstract | We identify an autosomal mutation in the CSF3R gene in a family with a chronic neutrophilia. This T617N mutation energetically favors dimerization of the granulocyte colony-stimulating factor (G-CSF) receptor transmembrane domain, and thus, strongly promotes constitutive activation of the receptor and hypersensitivity to G-CSF for proliferation and differentiation, which ultimately leads to chronic neutrophilia. Mutant hematopoietic stem cells yield a myeloproliferative-like disorder in xenotransplantation and syngenic mouse bone marrow engraftment assays. The survey of 12 affected individuals during three generations indicates that only one patient had a myelodysplastic syndrome. Our data thus indicate that mutations in the CSF3R gene can be responsible for hereditary neutrophilia mimicking a myeloproliferative disorder. | | Language | ENG | | Pub Type(s) | JOURNAL ARTICLE
| | PubMed ID | 19620628 |
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