Abstract

Background: VEGF play a significant role in the pathogenesis of chronic myeloid leukemia. Aims &
Objective: (1) Assess the pathophysiological role of VEGF in patients with chronic myeloid leukemia (CML). (2) Study the effect of Hydroxyurea and Imatinib on serum VEGF level. Material and Methods: A total of 40 cases of chronic myeloid leukemia (CML) and 20 age and sex matched healthy controls were included in this study. The patients were divided into 3 subcategories: Untreated cases (which did not receive any treatment); patients who were treated with Hydroxyurea and patients who were treated with Imatinib Mesylate. 5 ml of blood was collected, were centrifuged at 5000 rpm for 10 minutes and stored at - 20°C until assay.
Results: On comparing the various subgroups with control, the value was 726.61 ± 199.67 pg/ml in untreated group. It was 573.53 ± 213.423 pg/ml in Hydroxyurea group and 530.00±180.96 pg/ml in Imatinib group. Fresh cases had significantly elevated VEGF value (P value < 0.001). VEGF level significantly elevated in Untreated cases when compared to treated groups either hydroxyurea (p=0.02) or Imatinib (p=0.019). There was no significant difference between Hydroxyurea and Imatinib groups. Conclusion: This study suggests that VEGF play a significant role in the pathogenesis of chronic myeloid leukemia. Understanding this may help in designing new therapeutic strategies (antiangiogenic agents) for this dreaded disease.