期刊
SEMINARS IN HEMATOLOGY
卷 55, 期 4, 页码 235-241出版社
W B SAUNDERS CO-ELSEVIER INC
DOI: 10.1053/j.seminhematol.2018.05.001
关键词
Ph-like ALL; BCR-ABL1-like ALL; Tyrosine kinase inhibitors; Precision medicine; Targeted therapy; Genetics
类别
Philadelphia chromosome-like acute lymphoblastic leukemia (Ph-like ALL) is a recently identified high risk subtype of B-lineage ALL (B-ALL), characterized by a gene expression profile similar to that of Philadelphia-positive (Ph+) ALL, but without the hallmark BCR-ABLI oncoprotein. Ph-like ALL represents approximately 15% of childhood ALL and its frequency rises with age, peaking among adolescents, and young adults with B-ALL This subtype is associated with adverse clinical features, persistence of minimal residual disease, and a poor prognosis despite modern chemotherapy regimens. While Ph-like ALL lacks the BCR-ABLI fusion, it is characterized by a diverse spectrum of kinase fusions and cytokine receptor gene rearrangements that may be similarly amenable to molecularly targeted therapies. While survival rates for childhood ALL have drastically improved with intensive conventional chemotherapy, Ph-like ALL represents a novel paradigm of precision medicine in ALL This review aims to provide a comprehensive review of the clinical picture and genetic basis of Ph-like ALL and to illustrate how these findings can translate into tailored targeted therapies with the hopes of improving the outcomes of Ph-like ALL patients. (C) 2018 Elsevier Inc. All rights reserved.
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