Expression of proliferating cell nuclear antigen and deoxyribonucleic acid value in renal cell carcinoma: correlation with different histopathological parameters and patient survival.
Forty-six human renal cell carcinoma tissues obtained from radical nephrectomy, fixed in 10% formaldehyde solution and embedded in paraffin for histopathological examination were used for immunohistochemical staining of proliferating cell nuclear antigen (PCNA) using a monoclonal antibody PC10, and 37 of the 46 were also used for flow cytometric DNA ploidy analysis. PCNA-positive rates were compared with different histopathological parameters and patient survival. The relationships between the DNA ploidy and PCNA-positive rates and patient survival were also determined. Statistically significant differences in PCNA-positive rates were observed in different histopathological grades and stages of renal cell carcinoma. No relationship was observed between the PCNA-positive rate and DNA ploidy. For all cases analyzed, patients whose tumors had PCNA-positive rates of less than 10% survived statistically longer than those with tumors with PCNA-positive rates of 10% or more (p < 0.02). When patients were stratified by histopathological stage-I and grade-1 tumors, however, there was no significant difference between the PCNA-positive rate and survival. No difference in survival was observed according to DNA ploidy. The PCNA-positive rates showed a close relation to the different histopathological grades and stages of renal cell carcinoma. For all cases analyzed, high PCNA-positive rates showed poor prognosis. But for patients with histopathological stage-I and grade-1 tumors, the PCNA-positive rates and DNA ploidy did not provide independent prognostic information.
Shameem
I A
IA
Department of Urology, Yamaguchi University School of Medicine, Ube, Japan.
Shimabukuro
T
T
Wada
T
T
Kurisu
H
H
Naito
K
K
D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D002292:Carcinoma, Renal Cell / Q000378:metabolism* / Q000401:mortality / Q000473:pathology; D002648:Child; D004273:DNA, Neoplasm / Q000378:metabolism*; D005260:Female; D005434:Flow Cytometry; D005500:Follow-Up Studies; D006801:Humans; D007150:Immunohistochemistry; D007680:Kidney Neoplasms / Q000378:metabolism* / Q000401:mortality / Q000473:pathology; D008297:Male; D008875:Middle Aged; D009367:Neoplasm Staging; D011003:Ploidies; D011379:Prognosis; D018809:Proliferating Cell Nuclear Antigen / Q000235:genetics / Q000378:metabolism*; D012189:Retrospective Studies; D015996:Survival Rate
D004273:DNA, Neoplasm; D018809:Proliferating Cell Nuclear Antigen