evaluation of common genetic disorders in myeloproliferative neoplasms

نویسندگان

mehrdad payandeh medical biology research center, kermanshah university of medical sciences, kermanshah, iran.

farhad shaveisi zadeh department of medical genetics, faculty of medicine, shahid beheshti university of medical sciences and health services, tehran

mohammad erfan zare medical biology research center, kermanshah university of medical sciences, kermanshah, iran; studen

kamran mansouri medical biology research center, kermanshah university of medical sciences, kermanshah, iran; depart

چکیده

introduction: the myeloproliferative neoplasms (mpns) are a heterogeneous group of diseases characterized by excessive production of blood cells by  hematopoietic precursors. typically, they include polycythemia vera (pv), essential thrombocythemia (et), idiopathic myelofibrosis(imf), and chronic myeloid leukemia (cml). philadelphia chromosome is the final diagnostic test for cml. recently, jak2 mutation introduced as a diagnostic marker for other mpns. the aim of this study is evaluation of philadelphia chromosome in cml patients and jak2 mutation in mpns patients that had been referred to a hematology/oncology clinic in kermanshah between 2010-2011. material and methods: in this study we evaluated common genetic disorders in 124 mpns patients. expression of b2a2 bcr-abl mrna in peripheral blood leucocytes was detected by a reverse transcriptase polymerase chain reaction (rt-pcr) for cml patients. also, we used as-rt-pcr method for the detection of the jak2 mutation for all of 124 patients. results: we found 93.7% cml patients (60/64) with positive philadelphia chromosome. also, 85% pv patients (17/20), 46.6% et patients (14/30) and 40% imf patients (4/10) had jak2 mutation. notably, we found a cml patient with positive philadelphia chromosome and jak2 mutation. conclusion: diagnosis of mpns is often complex and expensive but, jak2 mutation is a sensitive test, relatively cost-effective for proving clonality in mpns. also, more studies are required to determine the exact frequency and prognostic role of the jak2 mutation in philadelphia positive cml patients.

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عنوان ژورنال:
international journal of hematology-oncology and stem cell research

جلد ۵، شماره ۳، صفحات ۱۶-۲۰

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