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Full-Text Articles in Medicine and Health Sciences
Combined Antiproliferative Effects Of The Aminoalkylindole Win55,212-2 And Radiation In Breast Cancer Cells, Sean Emery
Combined Antiproliferative Effects Of The Aminoalkylindole Win55,212-2 And Radiation In Breast Cancer Cells, Sean Emery
Theses and Dissertations
The potential antitumor activity of mixed CB1/CB2 cannabinoid receptor agonists, such as the aminoalkylindole WIN55,212-2 (WIN2), has been extensively studied, but little information is available as to their potential interaction with conventional cancer therapies, such as ionizing radiation (IR). In the present work, we investigated the effects of WIN2 on the antiproliferative effects of radiation in human (MCF-7 and MDA-MB-231) and murine (4T1) breast cancer cells, as well as an immortalized human breast epithelial cell line (MCF-10A). WIN2 or radiation alone inhibited breast tumor growth, while the combination of WIN2 and radiation was more effective than either agent alone in …
The Substituted Pyrrole Jb-03-14 Induces Autophagic Cell Death And Growth Arrest In Breast Tumor Cells, Christopher Ryan Arthur
The Substituted Pyrrole Jb-03-14 Induces Autophagic Cell Death And Growth Arrest In Breast Tumor Cells, Christopher Ryan Arthur
Theses and Dissertations
The use of chemotherapy in the treatment of cancer has stimulated the demand for better chemotherapeutic agents that are more potent at destroying tumor cell populations and more selective for the specific tumor versus normal host tissues. This project is directed at discovering new anti-tumor agents that are effective against breast cancer based on structures derived from marine organisms, specifically brominated pyrroles. We utilized an in vitro breast cancer model to study the effects of pyrroles on tumor proliferation and survival, as well as growth arrest and cell death. Our findings indicate that the substituted pyrrole JG-03-14 induces time dependent …
Influence Of The Vitamin D3 Analog Eb 1089 On Senescence And Cell Death Pathways In The Response Of Breast Tumor Cells To Ionizing Radiation, Gerald Alan Demasters
Influence Of The Vitamin D3 Analog Eb 1089 On Senescence And Cell Death Pathways In The Response Of Breast Tumor Cells To Ionizing Radiation, Gerald Alan Demasters
Theses and Dissertations
A senescence-like growth arrest succeeded by rapid recovery of proliferative capacity is observed in MCF-7 breast tumor cells exposed to fractionated radiation (5 x 2Gy) alone. Exposure to the vitamin D3 analog EB 1089 (100nM) prior to irradiation converts the initial growth arrest response to cell death in part through the inhibition of radiation-induced senescence and promotion of both apoptotic and autophagic cell death. More importantly, EB 1089 was shown to profoundly reduce the rate of recovery following fractionated irradiation. The effect of EB 1089 on the temporal response to radiation is also observed in MCF-7 cells expressing caspase 3, …