Document Type: Research Articles
Tabriz University of Medical Sciences, Tabriz, Iran.
Hematology and Oncology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.
Background: The key proliferative RTKs for AML include c-KIT receptor (CD117) and FLT-3 receptor (CD135).
The aim of this study was to evaluate the CD135 and CD117 expression, co-expression of CD135 and CD117
(CD135+CD117), and the association of that co-expression with Event Free Survival (DFS) and Overall Survival (OS)
rates. Material and Methods: We analyzed CD117 and CD135 expression on AML blasts by flow cytometry and its
association with Event Free Survival (DFS) and Overall Survival (OS) in 66 AML treated on Hematology-Oncology
Research Center, Iran, Tabriz. Results: The overall OS and EFS were 50% and 80.3% respectively during our study.
Cox-regression analysis revealed that a poor EFS was significantly associated a low CD135 (HR 0.34, 95% CI
0.13–0.88, P = 0.02). Conclusion: This is the first study from Iran to show that the expressions of CD135, CD117 is
easily measurable by routine diagnostic flow-cytometry, and CD135+117 were not significantly associated with CR,
EFS, or OS .