title: Survivin and EPR-1 expression in acute leukemias: prognostic significance and review of the literature.
abstract: The aim of this study is to detect the biologic and/or prognostic significance of survivin (S) and effector protease receptor 1: EPR-1 (E) expression in acute leukemias (34 ALL and 40 AML) by using RT-PCR. S and E expressions were found in 83.8 and 20.3% of the cases, respectively. S was detected in 90%, 76.5% and E was detected in 17.5%, 23.5% of the cases with AML and ALL, respectively. There was a significant correlation between S and E (r=0.30 p=0.01). Mortality rate was higher in E(-) cases than E(+) cases (83.1 % versus 66.7%) (p=0.04). The median DFS and OS rates were shorter in S(+) and E(-) cases. In subgroup analysis, there was not a significant difference for OS between S(-) and S(+) cases and E(-) and E(+) cases in ALL group. The median OS rate was significantly longer in S(-) cases than S(+) cases, and longer in E(+) cases than E(-) in AML groups (p=0.04, 0.001, respectively). OS and DFS rates were longest in S(-) E(+) cases and shortest in S(+) E(-) cases (p=0.04 and 0.03, respectively). In multivariate analyses EPR1 negativity was found to be an independent poor risk factor for survival (OR: 2.4, p=0.02). In conclusion S expression is a bad prognostic indicator in cases with acute leukemia especially in AML. S negativity and E positivity show good clinical outcome in acute leukemias. E expression is important due to its property of the possible natural anti-sense of the S.
authors.affiliation: Cukurova University, Faculty of Medicine, Department of Oncology, Adana, Turkey.
authors.forename: Ozgur Akin
authors.initials: OA
authors.lastname: Oto
authors.forename: Semra
authors.initials: S
authors.lastname: Paydas
authors.forename: Kahraman
authors.initials: K
authors.lastname: Tanriverdi
authors.forename: Gulsah
authors.initials: G
authors.lastname: Seydaoglu
authors.forename: Sinan
authors.initials: S
authors.lastname: Yavuz
authors.forename: Umut
authors.initials: U
authors.lastname: Disel
mesh_terms: D000208:Acute Disease; D001483:Base Sequence; D017931:DNA Primers; D006801:Humans; D051034:Inhibitor of Apoptosis Proteins; D007938:Leukemia / Q000378:metabolism*; D008869:Microtubule-Associated Proteins / Q000378:metabolism*; D009363:Neoplasm Proteins / Q000378:metabolism*; D011379:Prognosis; D011956:Receptors, Cell Surface / Q000378:metabolism*; D020133:Reverse Transcriptase Polymerase Chain Reaction; D000077022:Survivin
chemical_list: C107489:BIRC5 protein, human; D017931:DNA Primers; D051034:Inhibitor of Apoptosis Proteins; D008869:Microtubule-Associated Proteins; D009363:Neoplasm Proteins; D011956:Receptors, Cell Surface; D000077022:Survivin