PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 30050935-5 2018 As anticipated, TMZ caused DNA damage mediated by the ATM/p53/p21 signaling pathway and induced significant G2 delay. Temozolomide 16-19 tumor protein p53 Homo sapiens 58-61 30050935-7 2018 Mechanistic study showed that coadministration of caffeine and TMZ suppressed the phosphorylation of ATM and p53 and downregulated p21 expression, thus releasing DNA-damaged cells from G2 arrest into premature mitosis. Temozolomide 63-66 tumor protein p53 Homo sapiens 109-112 30050935-10 2018 In conclusion, our study demonstrated that caffeine enhanced the efficacy of TMZ through mitotic cell death by impeding ATM/p53/p21-mediated G2 arrest. Temozolomide 77-80 tumor protein p53 Homo sapiens 124-127