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PARP-1 Overexpression as an Independent Prognostic Factor in Adult Non-M3 Acute Myeloid Leukemia.
Genetic Testing and Molecular Biomarkers 2018 June
AIMS: Poly (ADP-ribose) polymerase-1 (PARP-1) plays an important role in the repair of damaged DNA and has prognostic significance in a variety of human malignancies. However, little is known about its expression levels and clinical implication in patients with acute myeloid leukemia (AML).
MATERIALS AND METHODS: Quantitative reverse transcription-polymerase chain reaction was done to evaluate PARP-1 expression levels in the bone marrow of 65 patients with non-M3 AML and 54 healthy counterparts. The correlation of PARP-1 expression with clinicopathological features of non-M3 AML patients was also analyzed.
RESULTS: Non-M3 AML patients have higher PARP-1 expression than the healthy controls (p < 0.01). Patients with adverse cytogenetic risk have higher PARP-1 expression than other cytogenetic risk groups (p = 0.004). The PARP-1 median expression level divided AML patients into PARP-1 low-expressed and PARP-1 high-expressed groups. High expression levels of PARP-1 were associated with worse overall survival (OS) (p = 0.01) and relapse-free survival (RFS) (p = 0.005). Moreover, multivariate analysis revealed that high PARP-1 expression was an independent risk factor for both OS and RFS.
CONCLUSIONS: Our results suggest that PARP-1 overexpression may define an important risk factor in non-M3 AML patients and PARP-1 is a potential therapeutic target for AML treatment.
MATERIALS AND METHODS: Quantitative reverse transcription-polymerase chain reaction was done to evaluate PARP-1 expression levels in the bone marrow of 65 patients with non-M3 AML and 54 healthy counterparts. The correlation of PARP-1 expression with clinicopathological features of non-M3 AML patients was also analyzed.
RESULTS: Non-M3 AML patients have higher PARP-1 expression than the healthy controls (p < 0.01). Patients with adverse cytogenetic risk have higher PARP-1 expression than other cytogenetic risk groups (p = 0.004). The PARP-1 median expression level divided AML patients into PARP-1 low-expressed and PARP-1 high-expressed groups. High expression levels of PARP-1 were associated with worse overall survival (OS) (p = 0.01) and relapse-free survival (RFS) (p = 0.005). Moreover, multivariate analysis revealed that high PARP-1 expression was an independent risk factor for both OS and RFS.
CONCLUSIONS: Our results suggest that PARP-1 overexpression may define an important risk factor in non-M3 AML patients and PARP-1 is a potential therapeutic target for AML treatment.
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