title: Relationship between PTEN gene expression and differentiation of human glioma.
abstract: OBJECTIVE
  To investigate the relationship between PTEN gene expression and differentiation of glioma.
  
  
  METHODS
  The quantitative real-time reverse transcription-polymerase chain reaction (RT-PCR) method was applied to detect PTEN mRNA levels in glioma tissues. Tumor-adjacent normal tissues and benign brain tumors were used as controls. Relative PTEN mRNA levels were determined as the ratio of PTEN and GAPDH, which were correlated with the clinical-pathological results.
  
  
  RESULTS
  PTEN mRNA levels were significantly lower in the glioma tissues than in the benign brain tumors and tumor-adjacent normal tissues, whereas there were no statistical differences between benign brain tumor and the tumor-adjacent normal tissues. According to the pathological examinations, PTEN mRNA levels were higher in the high differential glioma than the low differential glioma.
  
  
  CONCLUSIONS
  PTEN gene expression was suppressed in the glioma, which is related to the clinical-pathological results. It is suggested that determination of PTEN mRNA levels by RT-PCR could be a novel marker of disease classification.
authors.affiliation: Department of Neurosurgery, Third Affiliated Hospital of Suzhou University, Changzhou, China.
authors.forename: Y
authors.initials: Y
authors.lastname: Yang
authors.forename: N
authors.initials: N
authors.lastname: Shao
authors.forename: G
authors.initials: G
authors.lastname: Luo
authors.forename: L
authors.initials: L
authors.lastname: Li
authors.forename: P
authors.initials: P
authors.lastname: Nilsson-Ehle
authors.forename: N
authors.initials: N
authors.lastname: Xu
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D001254:Astrocytoma / Q000235:genetics / Q000473:pathology; D001932:Brain Neoplasms / Q000235:genetics* / Q000473:pathology*; D002648:Child; D005260:Female; D015870:Gene Expression; D016147:Genes, Tumor Suppressor; D005909:Glioblastoma / Q000235:genetics / Q000473:pathology; D005910:Glioma / Q000235:genetics* / Q000473:pathology*; D005987:Glyceraldehyde-3-Phosphate Dehydrogenases / Q000235:genetics; D006801:Humans; D008297:Male; D008579:Meningioma / Q000235:genetics / Q000473:pathology; D008875:Middle Aged; D009154:Mutation; D009464:Neuroma, Acoustic / Q000235:genetics / Q000473:pathology; D051059:PTEN Phosphohydrolase / Q000235:genetics*; D012333:RNA, Messenger / Q000235:genetics / Q000378:metabolism; D012334:RNA, Neoplasm / Q000235:genetics / Q000378:metabolism; D020133:Reverse Transcriptase Polymerase Chain Reaction
chemical_list: D012333:RNA, Messenger; D012334:RNA, Neoplasm; D005987:Glyceraldehyde-3-Phosphate Dehydrogenases; D051059:PTEN Phosphohydrolase; C494929:PTEN protein, human