Provided herein are compositions and related methods useful for free radical scavenging, with particular selectivity for mitochondria. The compounds comprise a nitroxide-containing group attached to a mitochondria-targeting group. The compounds can be cross-linked into dimers without loss of activity. Also provided herein are methods, for preventing, mitigating and treating damage caused by radiation. The method comprises delivering a compound, as described herein, to a patient in an amount and dosage regimen effective to prevent, mitigate or treat damage caused by radiation.
INTRAESOPHAGEAL ADMINISTRATION OF TARGETED NITROXIDE AGENTS FOR PROTECTION AGAINST IONIZING IRRADIATION-INDUCED ESOPHAGITIS
申请人:University of Pittsburgh - Of the Commonwealth System of Higher Education
公开号:US20190210969A1
公开(公告)日:2019-07-11
Provided herein are compositions and related methods useful for prevention or mitigation of ionizing radiation-induced esophagitis. The compositions comprise compounds comprising a nitroxide-containing group attached to a mitochondria-targeting group. The compounds can be cross-linked into dimers without loss of activity. The method comprises delivering a compound, as described herein, to a patient in an amount and dosage regimen effective to prevent or mitigate esophageal damage caused by radiation.
Synthesis of analogs of the radiation mitigator JP4-039 and visualization of BODIPY derivatives in mitochondria
作者:Marie-Céline Frantz、Erin M. Skoda、Joshua R. Sacher、Michael W. Epperly、Julie P. Goff、Joel S. Greenberger、Peter Wipf
DOI:10.1039/c3ob40489g
日期:——
JP4-039 is a lead structure in a series of nitroxide conjugates that are capable of accumulating in mitochondria and scavenging reactive oxygen species (ROS). To explore structure–activity relationships (SAR), new analogs with variable nitroxide moieties were prepared. Furthermore, fluorophore-tagged analogs were synthesized and provided the opportunity for visualization in mitochondria. All analogs were tested for radioprotective and radiomitigative effects in 32Dcl3 cells.