title: Different expression patterns of histone H3K27 demethylases in renal cell carcinoma and bladder cancer.
abstract: OBJECTIVE
  UTX and JMJD3 are recently identified histone H3 lysine 27 (H3K27) demethylases. Many studies have shown aberrant H3K27 trimethylation (H3K27me3) levels widely exist in multiple cancers, and that altered H3K27me3 levels are correlated with tumorigenesis and tumor progression. To investigate expression patterns of UTX and JMJD3 genes in renal cell carcinoma (RCC) and bladder cancer and the relationship between gene expression and tumor development.
  
  
  METHODS
  Samples were collected from 35 patients with RCC and 21 patients with bladder cancer and qRT-PCR was performed.
  
  
  RESULTS
  By comparing with adjacent normal tissues, the expression of JMJD3 (10/21 = 47.62%) and UTX (10/21 = 47.62%) were significantly upregulated in bladder cancer tissues and the expression of JMJD3 (15/35 = 42.86%) was significantly downregulated in RCC tissues. Stratified analyses revealed that upregulated expression of JMJD3 was significantly associated with poorly differentiated tumor nuclear grade (p= 0.005) and advanced clinical stage (p= 0.043) in the bladder cancer group, while downregulated expression of JMJD3 was significantly associated with advanced clinical stage (p= 0.045) and poorly differentiated tumor nuclear grade (p= 0.011) in the RCC group.
  
  
  CONCLUSIONS
  These results suggest JMJD3 could be a hallmark and is involved in the development of RCC and bladder cancers. The potential role of H3K27 demethylases as biomarkers needs further investigations.
authors.affiliation: Department of Genetics and Developmental Biology, Medical School of Southeast University, The Key Laboratory of Developmental Genes and Human Disease in Ministry of Education, Nanjing 210009, Jiangsu, China.
authors.forename: Zehui
authors.initials: Z
authors.lastname: Hong
authors.affiliation: Department of Genetics and Developmental Biology, Medical School of Southeast University, The Key Laboratory of Developmental Genes and Human Disease in Ministry of Education, Nanjing 210009, Jiangsu, China.
authors.forename: Hui
authors.initials: H
authors.lastname: Li
authors.affiliation: Institute of Life Sciences, The Key Laboratory of Developmental Genes and Human Disease, Southeast University, Nanjing 210096, Jiangsu, China.
authors.forename: Lili
authors.initials: L
authors.lastname: Li
authors.affiliation: Institute of Life Sciences, The Key Laboratory of Developmental Genes and Human Disease, Southeast University, Nanjing 210096, Jiangsu, China.
authors.forename: Weilong
authors.initials: W
authors.lastname: Wang
authors.affiliation: Department of Urologic Surgery, The Affiliated Cancer Hospital of Jiangsu Province of Nanjing Medical University, Nanjing 210009, Jiangsu, China.
authors.forename: Ting
authors.initials: T
authors.lastname: Xu
mesh_terms: D000328:Adult; D000368:Aged; D014408:Biomarkers, Tumor / Q000235:genetics; D002292:Carcinoma, Renal Cell / Q000201:enzymology* / Q000235:genetics / Q000473:pathology; D005260:Female; D015971:Gene Expression Regulation, Enzymologic; D015972:Gene Expression Regulation, Neoplastic; D056466:Histone Demethylases / Q000235:genetics*; D006801:Humans; D056484:Jumonji Domain-Containing Histone Demethylases / Q000235:genetics*; D007680:Kidney Neoplasms / Q000201:enzymology* / Q000235:genetics / Q000473:pathology; D008297:Male; D008875:Middle Aged; D009687:Nuclear Proteins / Q000235:genetics*; D001749:Urinary Bladder Neoplasms / Q000201:enzymology* / Q000235:genetics / Q000473:pathology
chemical_list: D014408:Biomarkers, Tumor; D009687:Nuclear Proteins; D056466:Histone Demethylases; D056484:Jumonji Domain-Containing Histone Demethylases; C523998:KDM6A protein, human; C524220:KDM6B protein, human
keywords: JMJD3; RCC; UTX; bladder cancer; histone demethylase