This study was performed to determine the relationship between p57/Kip2 and the growth of human astrocytomas. Immunohistochemical staining for p57/Kip2, p53, p16, and Ki67 antigen was performed on paraffin-embedded tissue specimens obtained from 36 patients with astrocytoma. Expression of p57/Kip2, p53, p16, and Ki67 antigen was generally increased in association with the astrocytoma tumor grad...

PURPOSE To determine the significance of Ki-67/MIB1 staining as a marker of patient outcome for prostate cancer patients treated with radiotherapy. EXPERIMENTAL DESIGN Pretreatment archival prostate biopsy tumor tissue was available from 106 stage T1-T4 prostate cancer patients treated with external beam radiotherapy between 1987 and 1993 at M. D. Anderson Cancer Center. Diagnosis was made fr...

PCNA (proliferating cell nuclear antigen) immunoreactivity is high in malignancy. (Also ki67 antibodies) and thus provides a useful diagnostic tool. Ki67 has prognostic significance in Adenoid Cystic Carcinoma. Bcl 2 and apoptotic index are good prognostic markers. Bax is proapoptotic (in salivary neoplasms there is decreased Bcl 2 and increased Bax leading to increased apoptosis ) Cytokeratin ...

Uncontrolled proliferation is a hallmark of cancer. In breast cancer, immunohistochemical assessment of the proportion of cells staining for the nuclear antigen Ki67 has become the most widely used method for comparing proliferation between tumor samples. Potential uses include prognosis, prediction of relative responsiveness or resistance to chemotherapy or endocrine therapy, estimation of res...

Background: The mutation of von Hippel-Lindau (VHL) tumor suppressor gene is closely related with tumorigenesis of renal clear cell carcinoma (RCCC). Ki67 is a specific cell nuclear antigen closely related with the cell cycle, generally appearing in the stages S, G2 and M of the cell amplification process, and it can emphasize the specific state of cell amplification very accurately. This study...

Background and objective:Breast cancer is the most common malignancy among women. The Neoadjuvant chemotherapy is the treatment of choice for non-operable tumors. The Ki67 is a proliferation marker that can be used to predict the therapeutic response to chemotherapy and the patients' prognosis. Methods: This retrospective study was carri...

BACKGROUND Squamous cellular carcinoma antigen (SCCA) is overexpressed in hepatocellular carcinoma (HCC) tissue and in sera of HCC patients. Our aim was to assess hepatic SCCA immunostaining in a series of HCCs and to correlate its presence with cell proliferation, apoptosis and clinical outcome. METHODS Sixty-one HCC patients were included. Liver specimens were obtained either by biopsy (n =...