PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 21619452-5 2011 MATERIALS AND METHODS: In cell cultures, we investigated the effects of forskolin/3-isobutyl-1-methylxanthine (IBMX) on stimulated p53 of ALL cell lines. 1-Methyl-3-isobutylxanthine 82-109 tumor protein p53 Homo sapiens 131-134 21619452-5 2011 MATERIALS AND METHODS: In cell cultures, we investigated the effects of forskolin/3-isobutyl-1-methylxanthine (IBMX) on stimulated p53 of ALL cell lines. 1-Methyl-3-isobutylxanthine 111-115 tumor protein p53 Homo sapiens 131-134 16614702-4 2006 RESULTS: All the derivatives, except 3-isobutyl-methylxanthine, increased tumor cell sensitization to radiation by inducing apoptosis in the p53-null lung cancer cell line. 1-Methyl-3-isobutylxanthine 37-62 tumor protein p53 Homo sapiens 141-144 16614702-6 2006 In contrast, 3-isobutyl-methylxanthine was more potent than the other derivatives in radiosensitization of normal lung epithelial cells and the lung carcinoma cells stably transfected with wild-type p53. 1-Methyl-3-isobutylxanthine 13-38 tumor protein p53 Homo sapiens 199-202 16614702-8 2006 CONCLUSION: Our results suggest that 3-isobutyl-methylxanthine might function through a p53-dependent mechanism. 1-Methyl-3-isobutylxanthine 37-62 tumor protein p53 Homo sapiens 88-91 9766444-6 1998 The differentiation response to transfected p53 with or without INF-gamma was inhibited by cyclic adenosine monophosphate (cAMP)-inducing agents (dibutyryl cyclic adenosine 3":5"-monophosphate, forskolin, and 3-isobutyl-1-methylxanthine) in a dose-dependent manner. 1-Methyl-3-isobutylxanthine 209-236 tumor protein p53 Homo sapiens 44-47