title: [Expression and clinical significance of PDCD5 in patients with acute myeloid leukemia].
abstract: OBJECTIVE
  This study was aimed to investigate the roles of PDCD5 (programmed cell death 5) in pathogenesis of acute myeloid leukemia (AML) and the relevance of PDCD5 with the clinical characteristics and prognosis of patients by testing the PDCD5 expression in adult AML patients.
  
  
  METHODS
  The mRNA and intracellular protein levels of PDCD5 from 36 newly diagnosed AML patients were analyzed by real-time fluorescence quantitative polymerase chain reaction (RQ-PCR) and flow cytometry (FCM), respectively. The correlation of mRNA levels and intracellular protein levels of PDCD5 with the clinical characteristics and survival time of patients were analyzed.
  
  
  RESULTS
  The intracellular protein expression levels of PDCD5 in AML patients were significantly higher than those in normal controls (P < 0.05). The PDCD5 mRNA levels were not significantly different between patients and controls (P > 0.05). The mRNA and protein levels of PDCD5 did not significantly correlate with sex, age, WBC count, FAB subtype, extramedullary infiltration, WT1 gene, NPM1 gene mutation and the patients response to induction therapy. The patients with positive FLT3/ITD mutation displayed higher protein levels of PDCD5 as compared with negative FLT3/ITD mutation patients (P < 0.05).
  
  
  CONCLUSIONS
  The intracellular protein of PDCD5 significantly increased in AML patients. However, the increased PDCD5 does not exert the pro-apoptotic effects on AML cells. The patients with positive FLT3/ITD mutation show higher protein levels of PDCD5.
authors: Department of Hematology, Fuxing Hospital, Capital Medical University, Beijing 100038, China. E-mail: Wanglirumail@126.com.
authors: Li-Ru
authors: LR
authors: Wang
authors: Department of Hematology, Fuxing Hospital, Capital Medical University, Beijing 100038, China.
authors: Min
authors: M
authors: Wang
authors: Department of Hematology, Fuxing Hospital, Capital Medical University, Beijing 100038, China.
authors: Jian-Ying
authors: JY
authors: Cui
authors: Department of Hematology, Luhe Hospital, Capital Medical University, Beijing 101149, China.
authors: He-Bing
authors: HB
authors: Zhou
mesh_terms: D051017:Apoptosis Regulatory Proteins; D006801:Humans; D015470:Leukemia, Myeloid, Acute; D009154:Mutation; D009363:Neoplasm Proteins; D000090243:Nucleophosmin; D011379:Prognosis; D012333:RNA, Messenger; D060888:Real-Time Polymerase Chain Reaction; D012074:Remission Induction; D051941:fms-Like Tyrosine Kinase 3
chemical_list: D051017:Apoptosis Regulatory Proteins; C000716967:NPM1 protein, human; D009363:Neoplasm Proteins; C117283:PDCD5 protein, human; D012333:RNA, Messenger; D000090243:Nucleophosmin; D051941:fms-Like Tyrosine Kinase 3