Title : Inhibition of COX-2 expression by topical diclofenac enhanced radiation sensitivity via enhancement of TRAIL in human prostate adenocarcinoma xenograft model.

Pub. Date : 2013 Jan 5

PMID : 23289871






7 Functional Relationships(s)
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1 Inhibition of COX-2 expression by topical diclofenac enhanced radiation sensitivity via enhancement of TRAIL in human prostate adenocarcinoma xenograft model. Diclofenac mitochondrially encoded cytochrome c oxidase II Homo sapiens
2 In this study, we tested if topical diclofenac, which inhibits both COX-1 and COX-2, administration rendered prostate tumor cells sensitize to the effects of radiation. Diclofenac mitochondrially encoded cytochrome c oxidase II Homo sapiens
3 In addition, we assessed the tumor volumes of xenograft LNCaP-COX-2 cells treated with topical diclofenac with or without radiation therapy (RT). Diclofenac mitochondrially encoded cytochrome c oxidase II Homo sapiens
4 RESULTS: LNCaP-COX-2 and LNCaP-Neo cell lines experienced cytotoxic effects of diclofenac in a dose related manner. Diclofenac mitochondrially encoded cytochrome c oxidase II Homo sapiens
5 Furthermore, the addition of diclofenac sensitized LNCaP-COX-2 not but LNCaP-Neo cells to the cytocidal effects of radiation. Diclofenac mitochondrially encoded cytochrome c oxidase II Homo sapiens
6 In LNCaP-COX-2 cells, diclofenac enhanced radiation-induced apoptosis compared with RT alone. Diclofenac mitochondrially encoded cytochrome c oxidase II Homo sapiens
7 CONCLUSIONS: These in vitro and in vivo findings suggest that conventional COX inhibitor, diclofenac enhances the effect of RT on prostate cancer cells that express COX-2. Diclofenac mitochondrially encoded cytochrome c oxidase II Homo sapiens