title: [Expressions of HDAC1 and HDAC2 in prostate cancer and their clinical implications].
abstract: OBJECTIVE
  To detect the expressions of HDAC1 and HDAC2 proteins in prostate cancer and to explore their clinical significance.
  
  
  METHODS
  We detected the expressions of HDAC1 and HDAC2 proteins in the tissue samples of prostate cancer from 82 patients with complete clinical data by immunohistochemistry, and analyzed the correlation of the expressions of HDAC1 and HDAC2 with other clinicopathological parameters, such as Gleason scores, preoperative PSA levels, and postoperative survival time.
  
  
  RESULTS
  HDAC1 and HDAC2 were expressed in 59.7 and 70.7% of the patients, respectively, located in the nuclei of cancer cells, more highly in those with higher than in those with lower Gleason scores (P < 0.05). No statistically significant differences were found in the expressions of HDAC1 and HDAC2 among those with different preoperative PSA levels and those of different ages (P > 0.05). Univariate analysis demonstrated that the HDAC2 expression, pre-operative PSA levels, Gleason scores and clinical stages of prostate cancer were important factors affecting the patients'survival (P < 0.05). Cox analysis indicated that the expression of HDAC2 was an independent index for the prognosis of prostate cancer (P = 0.017, HR = 2.265, 95% CI: 1.145 - 4.775).
  
  
  CONCLUSIONS
  The increased expression of HDAC2 in prostate cancer can serve as an independent prognostic indicator, which has provided a theoretical base for the clinical application of HDACs in the diagnosis and prognosis of prostate cancer.
authors.affiliation: Department of Urology, The Affiliated Hospital of Shandong Medical College, Linyi, Shandong 276004, China.
authors.forename: Chang-Kang
authors.initials: CK
authors.lastname: Yin
authors.forename: Qiang
authors.initials: Q
authors.lastname: Fu
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D056284:Histone Deacetylase 1 / Q000378:metabolism*; D056464:Histone Deacetylase 2 / Q000378:metabolism*; D006801:Humans; D007150:Immunohistochemistry; D008297:Male; D008875:Middle Aged; D011379:Prognosis; D011471:Prostatic Neoplasms / Q000378:metabolism* / Q000473:pathology
chemical_list: C110550:HDAC1 protein, human; C533423:HDAC2 protein, human; D056284:Histone Deacetylase 1; D056464:Histone Deacetylase 2