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We propose to quantitate endothelial progenitor cells (EPCs) in early and advanced breast cancer patients. Peripheral blood will be drawn from the eligible patients. Different type of EPCs will be isolated from the blood and quantitated.
Accumulating evidence emphasizes the emerging role of circulating endothelial cells (CECs) and endothelial progenitor cells (EPCs) in tumor angiogenesis as surrogate markers and in the efficacy of anti-angiogenic therapies in breast cancer (22-27). Furstenberger et al. (22) reported that CECs were significantly elevated in breast cancer patients and decreased during chemotherapy (anthracycline and/or taxane based). However, EPCs (CD34+/VEGFR-2+) as well as their progenitor cell population CD133+/CD34+ and the population of CD34+ stem cells increased together with VEGF, erythropoietin and angiopoietin-2 levels. Their data suggest that chemotherapy reduces mature CECs, while mobilizing the EPC population. Using real-time PCR and flow cytometry, they also showed that CD146, an endothelial cell specific antigen, was significantly increased in newly diagnosed breast cancer patients compared to healthy controls (23). Other studies also reported increased circulating EPCs in breast cancer patients in addition to CECs (24,25). In another study, circulating EPCs were not increased in cancer patients despite the high plasma VEGF levels (26). Another interesting aspect is that Mancuso et al (27) showed that CEC kinetics correlate with progression-free and overall survival but not circulating progenitor cells in metastatic breast cancer.
Observational Model: Case Control, Time Perspective: Prospective
Breast Cancer Stage IV
Published on BioPortfolio: 2014-08-27T03:41:51-0400
This study is designed to determine whether molecular detection of breast cancer cells in the peripheral blood of Stage IV breast cancer patients is a clinically relevant predictor of prog...
The purpose of this study is to see how the cancer treatment affects the ovaries. Cancer treatment can make it hard for a person to conceive a child in the future. It may also bring on ear...
The purpose of this study is to collect blood and tissue to help develop tests that might be able to detect cancer earlier. The investigator will be collecting these samples and reviewing ...
RATIONALE: Drugs used in chemotherapy, such as cisplatin and paclitaxel, work in different ways to stop the growth of tumor cells, either by killing the cells or by stopping them from divi...
RATIONALE: Studying samples of blood from patients with cancer in the laboratory may help doctors identify and learn more about biomarkers related to cancer. It may also help doctors under...
We identified demographic, lifestyle, and clinical factors associated with vitamin D status among breast cancer survivors. The vitamin D prediction model may be a useful surrogate of circulating 25-hy...
Assessing trends in breast cancer survival among young women who are largely unaffected by breast cancer screening will provide important information regarding improvements in the effectiveness of can...
BACKGROUND The aim of this study was to investigate the association between A, B, O, Rhesus (Rh)-positive and Rh-negative blood groups and breast cancer in a nationwide cohort of 3,944 patients in Tur...
Although breast cancer often is perceived to be indolent in older women, breast cancer outcomes in the oldest patients are variable. In the current study, the authors examined breast cancer-specific d...
Several studies have suggested that primary tumor removal improved overall survival for patients with stage IV breast cancer. However, the survival benefit of local treatment remains controversial. Th...
Abnormal accumulation of lymph in the arm, shoulder and breast area associated with surgical or radiation breast cancer treatments (e.g., MASTECTOMY).
Metastatic breast cancer characterized by EDEMA and ERYTHEMA of the affected breast due to LYMPHATIC METASTASIS and eventual obstruction of LYMPHATIC VESSELS by the cancer cells.
A infiltrating (invasive) breast cancer, relatively uncommon, accounting for only 5%-10% of breast tumors in most series. It is often an area of ill-defined thickening in the breast, in contrast to the dominant lump characteristic of ductal carcinoma. It is typically composed of small cells in a linear arrangement with a tendency to grow around ducts and lobules. There is likelihood of axillary nodal involvement with metastasis to meningeal and serosal surfaces. (DeVita Jr et al., Cancer: Principles & Practice of Oncology, 3d ed, p1205)
A deoxycytidine derivative and fluorouracil PRODRUG that is used as an ANTINEOPLASTIC ANTIMETABOLITE in the treatment of COLON CANCER; BREAST CANCER and GASTRIC CANCER.
Carbohydrate antigen elevated in patients with tumors of the breast, ovary, lung, and prostate as well as other disorders. The mucin is expressed normally by most glandular epithelia but shows particularly increased expression in the breast at lactation and in malignancy. It is thus an established serum marker for breast cancer.
Track and monitor developments in breast cancer research and commercial development. Follow the tabs above to read the latest global news, research, clinical trials on breast cancer and follow companies active in the development of breast cancer tr...
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