Abstract | AIM: Angiogenesis is the formation of new blood vessels from preexisting one. The angiopoietins act a central role in these process. The aim of the present study is to the assess the impact of the circulating levels of angiopoietin-1 (Angi-1), Angiopoietin-2 (Angi-2), soluble Tie2 receptor (sTie2), and calculated Angi-2/sTie2 ratio on overall survival in 71 acute myeloid leukemia patients and 19 normal controls. MATERIALS AND METHODS: Ang-2, and calculated angi-2/sTie values were significantly higher in AML patients as compared to healthy volunteer (P= 0.002, 0.015 respectively) on the other hand Angi-1 was not significantly different in patients and control. RESULTS: In univariate Cox proportional hazards model Angi-2, sTie2, angi-2/sTie2 ratio were predictive of poor survival. In multivariate analysis the calculated angi-2/sTie2 ratio is independent prognostic factor, with relative risk of 3.939, with 95% confidence interval 0.002-0.001. CONCLUSION: The calculated angiopoietin-2/sTie2 ratio represent an independent prognostic factor in AML and its value should be considered when considering anti angiogenic therapy.
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Authors | Salah Aref, Nadia El Menshawy, Emaad Azmy, Mohamed El-Refaie |
Journal | Indian journal of hematology & blood transfusion : an official journal of Indian Society of Hematology and Blood Transfusion
(Indian J Hematol Blood Transfus)
Vol. 25
Issue 1
Pg. 17-22
(Mar 2009)
ISSN: 0971-4502 [Print] India |
PMID | 23100966
(Publication Type: Journal Article)
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