Retrospective analysis of prognostic significance of the estrogen-inducible pS2 gene in male breast carcinoma.
BACKGROUND
The estrogen-inducible pS2 gene, originally isolated from a breast cancer cell line, is correlated with hormone-dependent female breast tumors and its expression is associated with longer overall and disease-free survival.


METHODS
The authors have investigated 38 samples of carcinomas of the male breast for pS2 expression by using a monoclonal antibody. The immunostaining was compared with clinical data, in particular, to the progesterone receptor status, to assess a possible prognostic value of this parameter.


RESULTS
Although most cases (27 of 38) were immunopositive (i.e., above the 5th percentile of immunoreactive cells), no correlation with tumor grade and survival was notable.


CONCLUSIONS
Therefore, on the contrary to the situation in female breast cancer, pS2 activity failed to constitute a new prognostic parameter in male breast carcinomas.
Kardaś
I
I
Department of Genetics & Biology, Medical Academy, Gdansk, Poland.
Seitz
G
G
Limon
J
J
Niezabitowski
A
A
Ryś
J
J
Theisinger
B
B
Welter
C
C
Blin
N
N
D000328:Adult; D000368:Aged; D014408:Biomarkers, Tumor / Q000032:analysis / Q000235:genetics; D001943:Breast Neoplasms / Q000235:genetics*; D002277:Carcinoma / Q000235:genetics; D002285:Carcinoma, Intraductal, Noninfiltrating / Q000235:genetics*; D002291:Carcinoma, Papillary / Q000235:genetics; D004967:Estrogens / Q000032:analysis / Q000235:genetics*; D015972:Gene Expression Regulation, Neoplastic; D006801:Humans; D008297:Male; D008875:Middle Aged; D009363:Neoplasm Proteins / Q000032:analysis / Q000235:genetics*; D009857:Oncogenes / Q000235:genetics*; D011379:Prognosis; D011506:Proteins; D012333:RNA, Messenger / Q000235:genetics; D011960:Receptors, Estrogen / Q000032:analysis / Q000235:genetics; D012189:Retrospective Studies; D015996:Survival Rate; D014158:Transcription, Genetic; D000071163:Trefoil Factor-1; D025521:Tumor Suppressor Proteins
D014408:Biomarkers, Tumor; D004967:Estrogens; D009363:Neoplasm Proteins; D011506:Proteins; D012333:RNA, Messenger; D011960:Receptors, Estrogen; C051838:TFF1 protein, human; D000071163:Trefoil Factor-1; D025521:Tumor Suppressor Proteins