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| ID | Type | Description | Link |
|---|---|---|---|
| IUCRO-0168 |
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| Name | Class |
|---|---|
| Breast Cancer Research Foundation | OTHER |
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.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Case | Women with breast cancer |
| |
| Control | Women without breast cancer |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Blood Draw | Procedure | Blood sample will be drawn from a vein in the arm. |
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| Measure | Description | Time Frame |
|---|---|---|
| To quantitate endothelial progenitor cells (EPCs) in early and advanced breast cancer patients. Different type of EPCs will be isolated from the blood and quantitated. | Day 1 |
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Inclusion Criteria:
Exclusion Criteria:
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Women 18 or older with breast cancer recieving treatment at IUSCC and willing to donate a blood sample and complete consent form.
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| Name | Affiliation | Role |
|---|---|---|
| George W Sledge, MD | Indiana University | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Indiana University | Indianapolis | Indiana | 46202 | United States |
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| ID | Term |
|---|---|
| D001943 | Breast Neoplasms |
| ID | Term |
|---|---|
| D009371 | Neoplasms by Site |
| D009369 | Neoplasms |
| D001941 | Breast Diseases |
| D012871 | Skin Diseases |
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| ID | Term |
|---|---|
| D001800 | Blood Specimen Collection |
| ID | Term |
|---|---|
| D013048 | Specimen Handling |
| D019411 | Clinical Laboratory Techniques |
| D019937 | Diagnostic Techniques and Procedures |
| D003933 | Diagnosis |
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Blood sample
| D017437 |
| Skin and Connective Tissue Diseases |
| D011677 | Punctures |
| D013514 | Surgical Procedures, Operative |
| D008919 | Investigative Techniques |