title: [Gleason histologic grading of prostate carcinoma in relation to serum PSA, PSA in situ and immunohistochemical expression of 34 beta E12 and P504S].
abstract: OBJECTIVE
  To study the Gleason histologic grading of prostate carcinoma in relation to the serum prostate-specific antigen (PSA) level and the PSA in situ of the tumor, and the immunohistochemical staining of basal cell-specific cytokertain(34 beta E12) and alpha-Methylacyl-CoA racemase(P504S) of the tumor.
  
  
  METHODS
  The serum PSA levels were measured in 40 cases of prostate carcinoma. The Gleason histologic grading was based on histopathologic examination of the tumors, and the immunohistochemical staining including PSA in situ (35 cases), 34 beta E12(12 cases) and P504S(10 cases) was examined.
  
  
  RESULTS
  The higher the Gleason histologic grading of prostate carcinoma, the higher the serum PSA level(P < 0.01), and the weaker the positive reaction of the immunohistochemical staining of PSA of the tumor(P < 0.05). And the tumor cells displayed positive reaction for P504S and negative for 34 beta E12.
  
  
  CONCLUSIONS
  The Gleason histologic grading of prostate carcinoma is positively related to the serum PSA level and negatively to PSA in situ of the tumor immunohistochemically. It is important to use immunohistochemical staining for 34 beta E12 and P504S in the pathologic diagnosis of prostate carcinoma.
authors.affiliation: Department of Pathology, Nanjing General Hospital of Nanjing Command, Nanjing, Jiangsu 210002, China.
authors.forename: Qin
authors.initials: Q
authors.lastname: Xiao
authors.forename: Honglin
authors.initials: H
authors.lastname: Yin
authors.forename: Zhenfeng
authors.initials: Z
authors.lastname: Lu
authors.forename: Kui
authors.initials: K
authors.lastname: Meng
authors.forename: Xiaojun
authors.initials: X
authors.lastname: Zhou
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D006801:Humans; D007150:Immunohistochemistry; D007633:Keratins / Q000032:analysis*; D008297:Male; D008875:Middle Aged; D009367:Neoplasm Staging; D017430:Prostate-Specific Antigen / Q000097:blood*; D011471:Prostatic Neoplasms / Q000737:chemistry / Q000473:pathology*; D019998:Racemases and Epimerases / Q000032:analysis*
chemical_list: C121278:CK-34 beta E12; D007633:Keratins; D017430:Prostate-Specific Antigen; D019998:Racemases and Epimerases; C108352:alpha-methylacyl-CoA racemase