PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 16168844-9 2005 Western blot analysis demonstrated that celecoxib downregulated the expression of Ku70 protein and inhibited the kinase activity of DNA-PKcs, which are involved in the double-stranded DNA-break repair machinery. Celecoxib 40-49 X-ray repair cross complementing 6 Homo sapiens 82-86