Pathogenetic, Clinical, and Prognostic Features of Adult t(4;11)(q21;q23)/MLL-AF4Positive B-Cell Acute Lymphoblastic Leukemia
Author(s) -
Francesco Marchesi,
Katia Girardi,
Giuseppe Avvisati
Publication year - 2011
Publication title -
advances in hematology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.371
H-Index - 31
eISSN - 1687-9112
pISSN - 1687-9104
DOI - 10.1155/2011/621627
Subject(s) - medicine , lymphoblastic leukemia , leukemia , cancer research , pathology , immunology , oncology
Translocation t(4;11)(q21;q23) leading to formation of MLL-AF4 fusion gene is found in about 10% of newly diagnosed B-cell acute lymphoblastic leukemia (ALL) in adult patients. Patients expressing this chromosomal aberration present typical biological, immunophenotypic, and clinical features. This form of leukemia is universally recognized as high-risk leukemia and treatment intensification with allogeneic hematopoietic stem cell transplantation (HSCT) in first complete remission (CR) could be a valid option to improve prognosis, but data obtained from the literature are controversial. In this review, we briefly describe pathogenetic, clinical, and prognostic characteristics of adult t(4;11)(q21;q23)/ MLL-AF4 positive ALL and provide a review of the clinical outcome reported by the most important cooperative groups worldwide.
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