title: Minichromosome Maintenance (MCM) Family as potential diagnostic and prognostic tumor markers for human gliomas.
abstract: BACKGROUND
  Gliomas are the most common type of all central nervous system tumors. Almost all patients diagnosed with these tumors have a poor prognostic outcome. We aimed to identify novel glioma prognosis-associated candidate genes.
  
  
  METHODS
  We applied WebArrayDB software to span platform integrate and analyze the microarray datasets. We focused on a subset of the significantly up-regulated genes, the minichromosome maintenance (MCM) family. We used frozen glioma samples to predict the relationship between the expression of MCMs and patients outcome by qPCR and western blot.
  
  
  RESULTS
  We found that MCMs expression was significantly up-regulated in glioma samples. MCM2-7 and MCM10 expressions were associated with WHO tumor grade. High MCM2 mRNA expression appeared to be strongly associated with poor overall survival in patients with high grade glioma. Furthermore, we report that MCM7 is strongly correlated with patient outcome in patients with WHO grade II-IV tumor. MCM3 expression was found to be up-regulated in glioma and correlated with overall survival in patients with WHO grade III tumor. MCM2, MCM3 and MCM7 expression levels were of greater prognostic relevance than histological diagnosis according to the current WHO classification system.
  
  
  CONCLUSIONS
  High expression of MCM 2, MCM3 and MCM7 mRNA correlated with poor outcome and may be clinically useful molecular prognostic markers in glioma.
authors.forename: Cong
authors.initials: C
authors.lastname: Hua
authors.forename: Gang
authors.initials: G
authors.lastname: Zhao
authors.forename: Yunqian
authors.initials: Y
authors.lastname: Li
authors.affiliation: Department of Neurosurgery of the First Clinical Hospital, Jilin University, 71 Xinmin St, Changchun, Jilin 130021, China. bieli@aliyun.com.
authors.forename: Li
authors.initials: L
authors.lastname: Bie
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D014408:Biomarkers, Tumor / Q000235:genetics* / Q000378:metabolism; D002648:Child; D002675:Child, Preschool; D015972:Gene Expression Regulation, Neoplastic; D005910:Glioma / Q000175:diagnosis / Q000235:genetics* / Q000473:pathology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D064110:Minichromosome Maintenance Proteins / Q000235:genetics* / Q000378:metabolism; D005810:Multigene Family; D011379:Prognosis; D016019:Survival Analysis; D055815:Young Adult
chemical_list: D014408:Biomarkers, Tumor; D064110:Minichromosome Maintenance Proteins