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Jak2-V617f Mutation and Philadelphia Positive Chronic Myeloid Leukemia



Nadali F1 ; Ferdowsi S3 ; Karimzadeh P3 ; Chahardouli B2 ; Einollahi N3 ; Mousavi SA2 ; Bahar B2 ; Dargahi H3 ; Alimoghaddam K2 ; Ghavamzadeh A2 ; Ghaffari SH2
Authors
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Authors Affiliations
  1. 1. Pathology Department, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
  2. 2. Hematology-Oncology and BMT Research Center, Shariati Hospital, Tehran University of Medical Sciences, Iran
  3. 3. School of Allied Health Sciences, Tehran University of Medical Sciences, Iran

Source: International Journal of Hematology-Oncology and Stem Cell Research Published:2009

Abstract

JAK2 is a tyrosine kinase that plays an important role in the signaling pathways of many hematopoietic growth factor receptors. A single acquired point mutation - V617F - in JAK2 occurs in the great majority of patients with polycythemia vera (PV) and approximately half of the patients with idiopathic myelofibrosis (IMF) or essential thrombocythemia (ET). In contrast, the JAK2-V617F mutation is only rarely found in chronic myeloid leukemia (CML) but, recently, some authors have reported the coexistence of JAK2V617F and BCR/ABL+ in CML patients expressing the p210 BCR-ABL oncoprotein. Here, we report a CML patient with the expression of p210/b2a2 type BCR-ABL transcript and JAK2V617F mutation.