title: The expression and significance of IDH1 and p53 in osteosarcoma.
abstract: BACKGROUND
  To detect the expression of isocitrate dehydrogenase 1 (IDH1) and transformation-related protein 53 (p53) in osteosarcoma and analyze the correlation between them and the clinico-pathological features.
  
  
  METHODS
  The expressions of IDH1 and p53 were detected in human osteosarcoma cell lines (MG-63 and U2OS) by immunocytochemistry, Real-time PCR and Western Blotting. The expressions of IDH1 and p53 in formalin-fixed paraffin-embedded tissue sections from 44 osteosarcoma patients were determined by immunohistochemistry, and the correlation between them and clinicopagthological features were analyzed. None of these patients received chemotherapy prior to surgery.
  
  
  RESULTS
  IDH1 is detected in osteosarcoma cell lines and biopsies. IDH1 expresses higher in U2OS cells with wild type p53 than in MG-63 cells with mutation p53. IDH1 correlates with histological Rosen grade and metastasis negatively. P53 correlates with histological Rosen grade, metastasis and overall survival in clinical osteosarcoma biopsies. Osteosarcoma patients with High IDH1 expression have a very high p53 expression.
  
  
  CONCLUSIONS
  IDH1 may correlate with p53 and be a candidate biomarker for osteosarcoma correlate with histological Rosen grade and metastasis.
authors.affiliation: Department of Orthopedics, Zhongnan Hospital of Wuhan University, No 169 Donghu Road, Wuchang District, 430071, Wuhan, China.
authors.forename: Xiang
authors.initials: X
authors.lastname: Hu
authors.forename: Ai-Xi
authors.initials: AX
authors.lastname: Yu
authors.forename: Bai-Wen
authors.initials: BW
authors.lastname: Qi
authors.forename: Tao
authors.initials: T
authors.lastname: Fu
authors.forename: Gang
authors.initials: G
authors.lastname: Wu
authors.forename: Min
authors.initials: M
authors.lastname: Zhou
authors.forename: Jun
authors.initials: J
authors.lastname: Luo
authors.forename: Jun-Hua
authors.initials: JH
authors.lastname: Xu
mesh_terms: D000293:Adolescent; D000328:Adult; D001706:Biopsy; D001859:Bone Neoplasms / Q000378:metabolism*; D002471:Cell Transformation, Neoplastic; D002648:Child; D005260:Female; D015972:Gene Expression Regulation, Neoplastic; D006801:Humans; D007521:Isocitrate Dehydrogenase / Q000096:biosynthesis*; D008297:Male; D008875:Middle Aged; D009362:Neoplasm Metastasis; D012516:Osteosarcoma / Q000378:metabolism*; D016159:Tumor Suppressor Protein p53 / Q000096:biosynthesis*
chemical_list: C495901:TP53 protein, human; D016159:Tumor Suppressor Protein p53; D007521:Isocitrate Dehydrogenase; C543588:IDH1 protein, human
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