Learn More
Previously we have shown that tamoxifen (TAM) induces morphological and biochemical changes typical of apoptosis in oestrogen receptor (ER)-positive MCF-7 or ER-negative MDA-231 human breast cancer cells. In this study the effects of TAM on expression of transforming growth factor beta 1 (TGF-beta 1) were correlated with the effects on cell cycle kinetics(More)
Phyllodes tumors are rare lesions of the breast with unpredictable behavior. A review of 18 patients with phyllodes tumors was performed to determine if pathologic and cellular characteristics correlated with clinical behavior and to determine the influence of the extent of the operation performed on clinical outcome. Local excision, primarily breast(More)
Indications for chest wall resection of metastatic or locally recurrent sarcoma and for subsequent bony reconstruction are controversial. Twenty-eight patients had chest wall resection for high-grade primary, metastatic, or recurrent sarcoma. In all patients, resection with selective reconstruction of the bony thorax was performed without operative(More)
OBJECTIVE To determine the factors associated with false-negative results on sentinel node biopsy and sentinel node localization (identification rate) in patients with breast cancer enrolled in a multicenter trial using a combination technique of isosulfan blue with technetium sulfur colloid (Tc99). SUMMARY BACKGROUND DATA Sentinel node biopsy is a(More)
OBJECTIVE To determine if micrometastatic disease in the sentinel lymph node is a predictor of non-sentinel lymph node (non-SLN) involvement in breast cancer. SUMMARY BACKGROUND DATA Sentinel lymph node biopsy (SLN) is an accepted alternative to axillary dissection in staging breast cancer. If the SLN contains metastatic foci, the standard recommendation(More)
Photodynamic therapy (PDT) involves the treatment of tumors in the presence of sensitizer, light, and oxygen, causing energy-dependent cytotoxicity. A vascular effect that causes hemorrhagic tumor necrosis has been described with PDT, but its basis remains undefined. To investigate the possible role of tumor necrosis factor (TNF) production in the(More)
BACKGROUND Apoptosis ("programmed cell death") is an active process characterized by prominent nuclear changes and DNA cleavage, which distinguishes it from cellular necrosis. In this study we investigated whether tamoxifen (TAM) treatment of estrogen receptor ER(+) MCF-7 and ER(-) MDA-231 human breast cancer cells resulted in cytotoxicity and cellular(More)
A retrospective review of 28 male breast cancer patients at Eastern Virginia Medical School and affiliated hospitals was performed to learn about patient characteristics, treatment, and outcome. The mean age of the patients was 64 years, and 60 per cent of patients were obese. The most common presenting symptoms were mass in 79 per cent and nipple discharge(More)
BACKGROUND Basement membrane invasion is one of the critical components of the metastatic cascade. The antiproliferative and antiinvasive activity of carboxyamido-triazole (CAI), a calcium influx inhibitor, was studied in five human breast cancer cell lines (MCF-7, MCF-7/ADRR, MDA-231, MDA-231R44, and BT-474). METHODS Sensitivity of the cell lines to CAI(More)
BACKGROUND Glutathione (GSH) is important in in vitro models of radiation and drug resistance, but its clinical relevance is uncertain. GSH levels were measured prospectively in 35 patients with breast cancer to establish normal ranges and to determine whether differences exist between tumor, lymph node metastases (when present), and normal breast tissue.(More)