Administration of a modulator of cell cycle checkpoint activation, which is preferably β-lapachone, or a pharmaceutically acceptable salt, prodrug, metabolite, analog or derivative thereof, protects normal cells against radiation injury. The invention includes methods of preventing radiation d
Administration of a modulator of cell cycle checkpoint activation, which is preferably β-lapachone, or a pharmaceutically acceptable salt, prodrug, metabolite, analog or derivative thereof, protects normal cells against radiation injury. The invention includes methods of preventing radiation damage. The invention also provides methods for treating conditions such as cancer with radiotherapy, by administering a modulator of cell cycle checkpoint activation to a subject, prior to administration of radiotherapy.
대표청구항▼
What is claimed: 1. A method of ameliorating or decreasing at least one symptom of radiation injury in a subject exposed to an accidental release of ionizing-radiation or an intentional release of ionizing-radiation from radiologic attack, wherein said subject does not have cancer or a cell-prolife
What is claimed: 1. A method of ameliorating or decreasing at least one symptom of radiation injury in a subject exposed to an accidental release of ionizing-radiation or an intentional release of ionizing-radiation from radiologic attack, wherein said subject does not have cancer or a cell-proliferative disorder, comprising administering to said subject, prior to said exposure, a therapeutically effective amount of β-lapachone or a pharmaceutically acceptable salt, in combination with a pharmaceutically acceptable carrier, wherein at least one said symptom of radiation injury is ameliorated or decreased. 2. The method of claim 1, wherein said radiation injury is caused by alpha radiation, beta radiation, gamma rays, or X-rays. 3. The method of claim 1, wherein said ameliorating or decreasing at least one symptom of radiation injury comprises decreasing cell death. 4. The method of claim 1, wherein said ameliorating or decreasing at least one symptom of radiation injury comprises decreasing cell death of immune cells. 5. The method of claim 1, wherein said ameliorating or decreasing at least one symptom of radiation injury comprises decreasing cell death of white blood cells. 6. The method of claim 1, wherein said ameliorating or decreasing at least one symptom of radiation injury comprises decreasing cell death of lymphocytes, monocytes, or neutrophils. 7. The method of claim 1, wherein said ameliorating or decreasing at least one symptom of radiation injury comprises ameliorating leukopenia. 8. The method of claim 1, wherein said ameliorating or decreasing at least one symptom of radiation injury comprises ameliorating neutropenia, monocytopenia, or lymphocytopenia. 9. The method of claim 1, wherein said ameliorating or decreasing at least one symptom of radiation injury comprises protecting the normal cellularity of the spleen or thymus. 10. A method of ameliorating or decreasing at least one symptom of radiation injury to normal cells in a subject exposed to an accidental release of ionizing-radiation or an intentional release of ionizing-radiation from radiologic attack, wherein said subject does not have cancer or a cell-proliferative disorder, comprising contacting a normal cell prior to said exposure, with an effective amount of β-lapachone, or a pharmaceutically acceptable salt, in combination with a pharmaceutically acceptable carrier, wherein at least one said symptom of radiation injury is ameliorated or decreased. 11. The method of claim 10, wherein said radiation injury is caused by alpha radiation, beta radiation, gamma rays, or X-rays. 12. The method of claim 10, wherein said normal cell is a normal immune cell. 13. The method of claim 10, wherein said normal cell is a normal white blood cell. 14. The method of claim 10, wherein said normal cell is a normal lymphocyte. 15. The method of claim 10, wherein said normal cell is a normal monocyte. 16. The method of claim 10, wherein said normal cell is a normal neutrophil. 17. The method of claim 10, wherein said ameliorating or decreasing at least one symptom of radiation injury comprises decreasing cell death. 18. A method of reducing radiation-induced neutropenia in a subject exposed to an accidental release of gamma-radiation or an intentional release of gamma-radiation from radiologic attack wherein said subject does not have cancer or a cell-proliferative disorder, comprising administering to said subject, prior to said exposure, a therapeutically effective amount of β-lapachone or a pharmaceutically acceptable salt, in combination with a pharmaceutically acceptable carrier. 19. A method of reducing radiation-induced monocytopenia in a subject exposed to an accidental release of gamma-radiation or an intentional release of gamma-radiation from radiologic attack wherein said subject does not have cancer or a cell-proliferative disorder, comprising administering to said subject, prior to said exposure, a therapeutically effective amount of β-lapachone or a pharmaceutically acceptable salt, in combination with a pharmaceutically acceptable carrier. 20. A method of reducing radiation-induced lymphocytopenia in a subject exposed to an accidental release of gamma-radiation or an intentional release of gamma-radiation from radiologic attack wherein said subject does not have cancer or a cell-proliferative disorder, comprising administering to said subject, prior to said exposure, a therapeutically effective amount of β-lapachone or a pharmaceutically acceptable salt, in combination with a pharmaceutically acceptable carrier.
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