Proliferating cell nuclear antigen in breast lesions: correlation of c-erbB-2 oncoprotein and EGF receptor and its clinicopathological significance in breast cancer.
Monoclonal anti-proliferating cell nuclear antigen (PCNA PC10), which is directed against a 36 kDa auxiliary protein for DNA polymerase delta specific for the S-phase of cell cycle, was used to measure tumour cell proliferation in 4 lactating breasts and 98 benign and malignant breast tumours. The percentage of PCNA-positive cells determined by point counting was significantly lower in the lactating breast [mean 3.6%, standard deviation (SD) 0.67, n = 5] than in fibroadenoma and mastopathy (mean 23.7, SD 5.0, n = 2). Primary breast carcinoma showed a PCNA index ranging from 2% to 36% (mean 12.3, SD 9.3, n = 50), whereas in recurrent carcinoma the index was mean 28.5, SD 4.0. A high index was correlated with c-erbB-2 and epidermal growth factor (EGF) receptor membrane reactivity, worsening histological grade, poor survival and disease-free survival. The expression of c-erbB-2 and EGF receptor was associated with poor survival and disease-free survival in primary breast cancer patients.
Shrestha
P
P
Department of Oral and Maxillofacial Surgery, Asahi University School of Dentistry, Gifu, Japan.
Yamada
K
K
Wada
T
T
Maeda
S
S
Watatani
M
M
Yasutomi
M
M
Takagi
H
H
Mori
M
M
D001943:Breast Neoplasms / Q000737:chemistry* / Q000473:pathology; D003937:Diagnosis, Differential; D066246:ErbB Receptors / Q000032:analysis*; D005260:Female; D006801:Humans; D007150:Immunohistochemistry; D008198:Lymph Nodes / Q000473:pathology; D009687:Nuclear Proteins / Q000032:analysis*; D011379:Prognosis; D018809:Proliferating Cell Nuclear Antigen; D011518:Proto-Oncogene Proteins / Q000032:analysis*; D018719:Erb-b2 Receptor Tyrosine Kinases
D066246:ErbB Receptors; D009687:Nuclear Proteins; D018809:Proliferating Cell Nuclear Antigen; D011518:Proto-Oncogene Proteins; D018719:Erb-b2 Receptor Tyrosine Kinases