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  • Title: Persistent detection of a novel MLL-SACM1L rearrangement in the absence of leukemia.
    Author: Mori T, Nishimura N, Hasegawa D, Kawasaki K, Kosaka Y, Uchide K, Yanai T, Hayakawa A, Takeshima Y, Nishio H, Matsuo M.
    Journal: Leuk Res; 2010 Oct; 34(10):1398-401. PubMed ID: 20553989.
    Abstract:
    Most chromosomal rearrangements including the mixed lineage leukemia (MLL) gene are manifested as leukemia and predict a poor prognosis. Although more than 50 MLL-rearrangement partners are characterized, MLL-related leukemogenesis remains to be understood. Here we report a case of a 3-year old boy bearing a novel MLL-rearrangement with the suppressor of actin mutations 1-like (SACM1L) gene in the absence of leukemia. Bone marrow cells harboring the MLL-SACM1L rearrangement appeared during chemotherapy for acute lymphoblastic leukemia with hyperdiploidy and were continuously detected over 7 years without clonal expansion.
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