Methods for radiation protection by administering IL-12
View Patent ↗Aspects and embodiments of the instant disclosure provide therapeutic methods and compositions comprising interleukin 12 (IL-12) useful for treating radiation-induced damage in a subject. In particular, the instant disclosure provides methods and compositions for radiation protection and/or radiation toxicity mitigation for the treatment of acute radiation syndrome and radiation induced toxicity associated with the treatment of cutaneous T-cell lymphoma.
1. A method of protecting a human subject from damage to immune system, gastrointestinal system, mucosal immune system, or mucosal tissue, following exposure of the subject to radiation between 0.7 Gy and 50 Gy, the method comprising:
administering a pharmaceutical composition comprising substantially isolated rIL-12 to the subject in an amount of between 10 ng/kg to 200 ng/kg of rIL-12, whereby cellular damage to the immune system, gastrointestinal system, or mucosal tissue, due to radiation, is diminished and wherein the subject is receiving radiation for head and neck cancer.
2. The method of claim 1 , where the radiation is received as a fractionated dose in two or more fractions.
3. The method of claim 2 , wherein the radiation is received as a fractionated dose in a hyperfractionation therapy.
4. The method of claim 2 , wherein the radiation is received as a fractionated dose in an accelerated fractionation therapy.
5. The method of claim 1 , wherein an effective dose of IL-12 protects more than one system, organ and/or tissue from radiation damage.
6. The method of claim 1 , wherein the effective dose of IL-12 is given in two or more doses of less than 50 ng/kg for each dose.
7. The method of claim 1 , wherein the one or more effective dose(s) of IL-12 is less than 100 ng/kg.
8. The method of claim 1 , wherein the one or more effective dose(s) of IL-12 are given before radiation exposure.
9. The method of claim 1 , wherein the one or more effective dose(s) of IL-12 are given before and after radiation exposure.
10. The method of claim 1 , wherein the one or more effective dose(s) of IL-12 are given after radiation exposure.
11. The method of claim 10 , wherein the one or more effective dose(s) of IL-12 is given at greater than 24 hours after radiation exposure.
12. The method of claim 10 , wherein the one or more effective dose(s) of IL-12 is given at greater than 48 hours after radiation exposure.
13. The method of claim 10 , wherein the one or more effective dose(s) of IL-12 is given at greater than 72 hours after radiation exposure.
14. The method of claim 10 , wherein the one or more effective dose(s) of IL-12 is given at greater than 96 hours after radiation exposure.
15. The method of claim 10 , wherein the one or more effective dose(s) of IL-12 is given at greater than 120 hours after radiation exposure.
16. The method of claim 1 , wherein the one or more effective doses of IL-12 are administered subcutaneously.
17. The method of claim 1 , wherein the one or more effective doses of IL-12 are administered intravenously.
18. The method of claim 1 , wherein the one or more effective doses of IL-12 are administered intramuscularly.
19. The method of claim 1 , wherein the IL-12 is administered at or near the site of irradiation.
20. The method of claim 1 , wherein the radiation damage is caused by a radiation therapy treatment modality.
21. The method of claim 20 , wherein the treatment modality comprises external-beam radiation therapy.
22. The method of claim 21 , wherein the external-beam radiation therapy comprises 3-dimensional conformal radiation therapy (3-D CRT).
23. The method of claim 21 , wherein the external-beam radiation therapy is selected from the group consisting of intensity-modulated radiation therapy (IMRT), image-guided radiation therapy (IGRT), tomotherapy, stereotactic radiosurgery, stereotactic body radiation therapy, photon beam, electron beam and proton therapy.
24. The method of claim 20 , wherein the radiation therapy comprises internal radiation therapy or brachytherapy.
25. The method of claim 20 , wherein the radiation therapy comprises systemic radiation therapy.
26. The method of claim 1 , wherein the one or more effective doses of IL-12 are administered intradermally.
27. The method of claim 1 , wherein the administered IL-12 induces the production of erythropoietin.
28. The method of claim 27 , wherein erythropoietin production enhanced protection from cellular damage.
29. The method of claim 1 , wherein the subject in need also requires chemotherapy.
30. The method of claim 29 , wherein the cancer is a solid tumor.
31. The method of claim 1 , wherein the pharmaceutical composition is formulated for administration by a delivery route selected from the group consisting of intradermal, intramuscular, intraperitoneal, intravenous, topical, subcutaneous, and epidural routes.
32. The method of claim 1 , wherein the effective dose of IL-12 is given in two or more doses of less than 30 ng/kg for each dose.
33. The method of claim 1 , wherein cellular damage to immune system is diminished.
34. The method of claim 1 , wherein cellular damage to gastrointestinal system is diminished.
35. The method of claim 1 , wherein the substantially isolated rIL-12 is administered in an amount of between 30 ng/kg and 200 no/kg.
36. The method of claim 1 , wherein the substantially isolated rIL-12 is administered in an amount of between 50 ng/kg and 100 ng/kg.
37. The method of claim 1 , wherein the substantially isolated rIL-12 is administered in an amount of between 30 ng/kg and 80 ng/kg.
38. The method of claim 1 , wherein an effective dose of IL-12 exhibits anti-tumor effects.
39. The method of claim 38 , wherein the anti-tumor effect is synergistic with the radiation therapy.
40. The method of claim 39 , wherein the radiation therapy is electron beam therapy (EBT).