IPC분류정보
| 국가/구분 |
United States(US) Patent
등록
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| 국제특허분류(IPC7판) |
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| 출원번호 |
US-0135118
(1993-10-12)
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발명자
/ 주소 |
- Sessler Jonathan L. (Austin TX) Mody Tarak D. (Sunnyvale CA) Hemmi Gregory W. (Sunnyvale CA) Krl Vladimir (Na Kozaaoa CSX)
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| 출원인 / 주소 |
- Board of Regents, The University of Texas System (Austin TX 02)
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| 인용정보 |
피인용 횟수 :
38 인용 특허 :
0 |
초록
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A method of using texaphyrins as radiosensitizers. Advantageous properties of texaphyrins for use as a radiosensitizer include i) a low redox potential which allows radiation induced solvated electrons to flow to texaphyrin rather than neutralizing hydroxyl radicals, allowing the hydroxyl radicals t
A method of using texaphyrins as radiosensitizers. Advantageous properties of texaphyrins for use as a radiosensitizer include i) a low redox potential which allows radiation induced solvated electrons to flow to texaphyrin rather than neutralizing hydroxyl radicals, allowing the hydroxyl radicals to cause cellular damage, ii) a relatively stable texaphyrin radical which, nevertheless, reacts readily to covalently modify neighboring molecules causing further cellular damage, and iii) intrinsic biolocalization and indifference to the presence of O2 which allow texaphyrin to be particularly effective for treating the hypoxic areas of solid tumors. Sensitizer enhancement ratios of 1.62 and 2.2 were achieved at 20 mm
대표청구항
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A water soluble compound retaining lipophilicity and having the structure: [Figure] wherein M is H, a divalent metal cation selected from the group consisting of Ca+2, Mn+2, Co+2, Ni+2, Zn+2, Cd+2, Hg+2, Fe+2, Sm+2 and UO2+2 or a trivalent metal cation selected from the group consisting of Mn+3, Co+
A water soluble compound retaining lipophilicity and having the structure: [Figure] wherein M is H, a divalent metal cation selected from the group consisting of Ca+2, Mn+2, Co+2, Ni+2, Zn+2, Cd+2, Hg+2, Fe+2, Sm+2 and UO2+2 or a trivalent metal cation selected from the group consisting of Mn+3, Co+3, Ni+3, Fe+3, Ho+3, Ce+3, Y+3, In+3, Pr+3, Nd+3, Sm+3, Eu+3, Gd+3, Tb+3, Dy+3, Er+3, Tm+3, Yb+3, Lu+3, La+3, and U+3; R2 and R3 are CH2CH3, R4 is CH3, R1, R5 and R6 are independently hydrogen, hydroxyl, alkyl, hydroxyalkyl, oxyalkyl, oxyhydroxyalkyl, saccharide, carboxyalkyl, carboxyamidealkyl, antibody, a peptide having affinity for a biological receptor, a sapphyrin molecule, or a couple to an antibody, a peptide having affinity for a biological receptor, or a sapphyrin molecule, where at least one of R1, R5, and R6 is oxyhydroxyalkyl, saccharide, oxyalkyl, carboxyalkyl, carboxyamidealkyl, hydroxyalkyl, an antibody, a peptide having affinity for a biological receptor, a sapphyrin molecule, or a couple to an antibody, a peptide having affinity for a biological receptor, or a sapphyrin molecule, having at least one hydroxy substituent; and N is 0, 1 or 2.
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