Correlation between expressions of IL-3, IL-6 and IL-11 genes and chronic myeloid leukemia

Introduction and Aim: Chronic myeloid leukemia (CML) is a hematopoietic malignancy originating from transformation of a hematopoietic stem cell. BCR-ABL gene that resulted from a translocation between chromosomes 9 and 22 is detected in the majority of CML patients. IL-3, IL-6 and IL-11 are cytokines that affects the development of myeloid cells. The aim of this study to evaluate the relationship between IL-3, IL-6 and IL-11 and CML development. Material and Methods: This study was perfomed using peripheral blood from 33 patients followed in our hematology clinic at Karadeniz Technical University Medical School obtained with a diagnosis of CML. We get peripheral blood from 34 healthy people that examined in Karadeniz Technical University Medical Schools clinics. RNA was isolated from peripheral blood and cDNA is synthesized. Then cDNA expression analysis was performed. Results: IL-3, IL-6 and IL-11 gene expressions significantly decreased in CML patients with high expression of BCR-ABL gene compared to healthy individuals. After major molecular response IL-3, IL-6 and IL-11 gene expressions increased compared with the initial diagnosis of CML. Conclusions: According to the our results; increase of BCR-ABL gene expression in CML patients may provide the proliferation of neoplastic cells without effective IL-3, IL-6 and IL-11 gene expressions in normal hematopoiesis. İnverse relationship in our CML patients are available between BCR-ABL expression and IL-3, IL-6 and IL-11 expressions. Studies for IL-3, IL-6 and IL-11 gene expressions are needed to determine the relationship with BCR-ABL expression level and to be used follow up of patients with CML.