PMID- 26346319 OWN - NLM STAT- MEDLINE DCOM- 20160803 LR - 20181113 IS - 2045-2322 (Electronic) IS - 2045-2322 (Linking) VI - 5 DP - 2015 Sep 8 TI - Modeling the interplay between the HIF-1 and p53 pathways in hypoxia. PG - 13834 LID - 10.1038/srep13834 [doi] LID - 13834 AB - Both the hypoxia-inducible factor-1 (HIF-1) and tumor suppressor p53 are involved in the cellular response to hypoxia. How the two transcription factors interact to determine cell fates is less well understood. Here, we developed a network model to characterize crosstalk between the HIF-1 and p53 pathways, taking into account that HIF-1alpha and p53 are targeted for proteasomal degradation by Mdm2 and compete for binding to limiting co-activator p300. We reported the network dynamics under various hypoxic conditions and revealed how the stabilization and transcriptional activities of p53 and HIF-1alpha are modulated to determine the cell fate. We showed that both the transrepression and transactivation activities of p53 promote apoptosis induction. This work provides new insight into the mechanism for the cellular response to hypoxia. FAU - Zhou, Chun-Hong AU - Zhou CH AD - National Laboratory of Solid State Microstructures and Department of Physics, Nanjing University, Nanjing 210093, China. AD - School of Physics and Electronic Engineering, Jiangsu Normal University, Xuzhou 221116, China. FAU - Zhang, Xiao-Peng AU - Zhang XP AD - Kuang Yaming Honors School, Nanjing University, Nanjing 210093, China. FAU - Liu, Feng AU - Liu F AD - National Laboratory of Solid State Microstructures and Department of Physics, Nanjing University, Nanjing 210093, China. AD - Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, China. FAU - Wang, Wei AU - Wang W AD - National Laboratory of Solid State Microstructures and Department of Physics, Nanjing University, Nanjing 210093, China. AD - Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, China. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20150908 PL - England TA - Sci Rep JT - Scientific reports JID - 101563288 RN - 0 (Hypoxia-Inducible Factor 1, alpha Subunit) RN - 0 (MicroRNAs) RN - 0 (Tumor Suppressor Protein p53) RN - EC 2.7.11.1 (ATR protein, human) RN - EC 2.7.11.1 (Ataxia Telangiectasia Mutated Proteins) RN - EC 3.6.5.2 (Proto-Oncogene Proteins p21(ras)) SB - IM MH - Apoptosis/genetics MH - Ataxia Telangiectasia Mutated Proteins/metabolism MH - Humans MH - Hypoxia/genetics/*metabolism MH - Hypoxia-Inducible Factor 1, alpha Subunit/genetics/*metabolism MH - MicroRNAs/genetics MH - *Models, Biological MH - Protein Binding MH - Proto-Oncogene Proteins p21(ras)/genetics/metabolism MH - *Signal Transduction MH - Tumor Suppressor Protein p53/genetics/*metabolism PMC - PMC4561886 EDAT- 2015/09/09 06:00 MHDA- 2016/08/04 06:00 PMCR- 2015/09/08 CRDT- 2015/09/09 06:00 PHST- 2015/04/29 00:00 [received] PHST- 2015/08/10 00:00 [accepted] PHST- 2015/09/09 06:00 [entrez] PHST- 2015/09/09 06:00 [pubmed] PHST- 2016/08/04 06:00 [medline] PHST- 2015/09/08 00:00 [pmc-release] AID - srep13834 [pii] AID - 10.1038/srep13834 [doi] PST - epublish SO - Sci Rep. 2015 Sep 8;5:13834. doi: 10.1038/srep13834.