Prognostic value of nm23 protein expression in renal cell carcinomas.
In the present study, an analysis of whether expression of nm23-H1 and nm23-H2 proteins has prognostic significance was performed. A series of 95 renal cell carcinomas was analyzed for nuclear grade, tumor size (larger than 50 mm or not), staging in the Robson system and expression of nm23-H1 and nm23-H2, as well as patient survival. Immunohistochemical staining of nm23-H1 and nm23-H2 was found in 68.4 and 50.5% of the cases, respectively. Significant differences in nm23-H1, but not nm23-H2 expression were noted with regard to nuclear grade and tumor size. The patients with nm23-H1-expression-negative tumors sized < or = 50 mm had a significantly poorer prognosis than their positive counterparts. Multivariate analysis using the Cox proportional hazards regression model indicated that the staging in the Robson system and expression of nm23-H1 were significant and independent prognostic factors for survival. However, no significant correlation between the incidence of metastasis and expression of nm23-H1 or nm23-H2 was found. The results imply that reduced expression of nm23-H1 influences the prognosis of patients with renal cell carcinomas, but not the likelihood of metastasis. In small tumors sized < or = 50 mm, reduced expression of nm23-H1 protein was suggested to be an especially strong predictor of a poor prognosis.
Nakagawa
Y
Y
Second Department of Pathology, Nara Medical University, Kashihara, Japan.
Tsumatani
K
K
Kurumatani
N
N
Cho
M
M
Kitahori
Y
Y
Konishi
N
N
Ozono
S
S
Okajima
E
E
Hirao
Y
Y
Hiasa
Y
Y
D000328:Adult; D000368:Aged; D000951:Antigens, Neoplasm / Q000032:analysis*; D014408:Biomarkers, Tumor / Q000032:analysis*; D002292:Carcinoma, Renal Cell / Q000737:chemistry* / Q000276:immunology / Q000401:mortality* / Q000473:pathology; D005260:Female; D015972:Gene Expression Regulation, Neoplastic; D006801:Humans; D007680:Kidney Neoplasms / Q000737:chemistry* / Q000276:immunology / Q000401:mortality* / Q000473:pathology; D008297:Male; D008875:Middle Aged; D020559:Monomeric GTP-Binding Proteins; D054778:NM23 Nucleoside Diphosphate Kinases; D009367:Neoplasm Staging; D009701:Nucleoside-Diphosphate Kinase; D016017:Odds Ratio; D011237:Predictive Value of Tests; D011379:Prognosis; D012306:Risk; D016019:Survival Analysis; D014157:Transcription Factors / Q000032:analysis*
D000951:Antigens, Neoplasm; D014408:Biomarkers, Tumor; D054778:NM23 Nucleoside Diphosphate Kinases; D014157:Transcription Factors; C517938:NME1 protein, human; D009701:Nucleoside-Diphosphate Kinase; D020559:Monomeric GTP-Binding Proteins