A novel del(8)(q23.2q24.11) contributing to disease progression in a case of JAK2/TET2 double mutated chronic myelomonocytic leukemia

Autor: Marie Toft-Petersen, Eigil Kjeldsen, Line Nederby, Kirsten Grønbæk, Peter Hokland, Anne Stidsholt Roug
Jazyk: angličtina
Rok vydání: 2014
Předmět:
Zdroj: Leukemia Research Reports, Vol 3, Iss 2, Pp 94-97 (2014)
Druh dokumentu: article
ISSN: 2213-0489
DOI: 10.1016/j.lrr.2014.09.002
Popis: We have identified a novel 7.7 Mb del(8)(q23.2q24.11) in a patient progressing to acute myeloid leukemia (AML) following a 12-year stable phase of chronic myelomonocytic leukemia (CMML). A surprisingly high JAK2+ allelic burden of 92% at the time of AML led us to delineate the molecular aberrations relevant for leukemogenesis. While a frameshift mutation in the TET2 gene was stably present throughout the course of disease the JAK2 mutation was acquired after initial diagnosis of CMML. At progression aCGH revealed del(8q)(q23.2q24.11) encompassing various cancer relevant genes of which RAD21 and CSMD3 are of particular interest.
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