title: Significance of proliferating cell nuclear antigen expression in liver metastasis of colorectal cancer.
abstract: OBJECTIVE
  The study contained herein was aimed at finding some possible pathologic factors that have significance for the prediction of liver metastasis in colorectal cancer.
  
  
  METHODS
  Resected specimens of colorectal cancer from 23 patients with liver metastasis and 30 patients without liver metastasis were subjected to pathologic study, including microscopic characteristics and proliferating cell nuclear antigen immunohistochemistry assay.
  
  
  RESULTS
  Strongly positive expression of proliferating cell nuclear antigen was present in 65.21 percent (15/23) of the liver metastasis group, whereas it was found in only 20 percent (6/30) of the group without liver metastasis (P < 0.005). Deeper invasion to the muscularis propria or serosa and less infiltration of lymphocytes surrounding the tumor were more frequently found in the liver metastasis group than in the other group (P < 0.025).
  
  
  CONCLUSIONS
  Extent of proliferating cell nuclear antigen expression, depth of invasion, and reaction of lymphocyte infiltration of the primary tumor could have predictive significance of colorectal cancer in liver metastasis.
authors.affiliation: Department of Surgery, Xiangya Hospital, Hunan Medical University, Changsha, Peoples Republic of China.
authors.forename: G
authors.initials: G
authors.lastname: Liao
authors.forename: Y
authors.initials: Y
authors.lastname: Zhang
authors.forename: M
authors.initials: M
authors.lastname: Shen
authors.forename: H
authors.initials: H
authors.lastname: Jiang
authors.forename: Z
authors.initials: Z
authors.lastname: Yan
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D014408:Biomarkers, Tumor; D001707:Biopsy, Needle; D015179:Colorectal Neoplasms / Q000378:metabolism / Q000473:pathology*; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007150:Immunohistochemistry; D008113:Liver Neoplasms / Q000378:metabolism / Q000556:secondary*; D008198:Lymph Nodes / Q000378:metabolism / Q000473:pathology; D008207:Lymphatic Metastasis; D008297:Male; D008875:Middle Aged; D009364:Neoplasm Recurrence, Local; D011237:Predictive Value of Tests; D018809:Proliferating Cell Nuclear Antigen / Q000378:metabolism*; D012189:Retrospective Studies
chemical_list: D014408:Biomarkers, Tumor; D018809:Proliferating Cell Nuclear Antigen