title: [Expressions of c-IAP2 and Smac gene in leukemia and their clinical significance].
abstract: To investigate the expressions of c-IAP2 and Smac in leukemia and their prognostic significance in adult patients with acute leukemia (AL), the mRNA expressions of c-IAP2 and Smac in 103 AL adult patients were measured by semi-quantity reverse transcription polymers chain reaction (RT-PCR). Other 20 adults were selected as normal controls (NC), K562 and Kg-1alpha cell lines were employed as positive control. The results showed that the expressions of c-IAP2 and Smac in de novo AL patients were higher than those in NC, while they decreased in patients at complete remission (CR). In relapsed patients, the expressions of c-IAP2 and Smac increased again. The mRNA expression of c-IAP2 and Smac in CML-CP were higher than that of NC, but no statistical significance was found (P > 0.05). In AL patients, the CR rate of c-IAP2+ and Smac+ cases were lower than those of c-IAP2- and Smac- cases. It is concluded that overexpression of c-IAP1 and Smac may play a synergic role in the pathogenesis of AL, and there is a positive correlation beween them. The c-IAP2 and Smac expressions are associated with remission rate in AL, while the patients with high level of c-IAP2 or Smac have low remission rates. It seems that c-IAP2 and Smac serve as markers of poor prognosis in AL.
authors.affiliation: Department of Hematology, The Second Hospital, Hebei Medical University, Shijiazhuang 050000, China.
authors.forename: Yan
authors.initials: Y
authors.lastname: Wang
authors.forename: Jian-Hui
authors.initials: JH
authors.lastname: Zhou
mesh_terms: D000208:Acute Disease; D051017:Apoptosis Regulatory Proteins; D014408:Biomarkers, Tumor; D006801:Humans; D051034:Inhibitor of Apoptosis Proteins / Q000096:biosynthesis* / Q000235:genetics; D047908:Intracellular Signaling Peptides and Proteins / Q000235:genetics; D007938:Leukemia / Q000378:metabolism*; D024101:Mitochondrial Proteins / Q000096:biosynthesis* / Q000235:genetics; D011379:Prognosis; D012333:RNA, Messenger / Q000096:biosynthesis / Q000235:genetics; D020133:Reverse Transcriptase Polymerase Chain Reaction
chemical_list: D051017:Apoptosis Regulatory Proteins; D014408:Biomarkers, Tumor; C412403:DIABLO protein, human; D051034:Inhibitor of Apoptosis Proteins; D047908:Intracellular Signaling Peptides and Proteins; D024101:Mitochondrial Proteins; D012333:RNA, Messenger