PMID- 12900407 OWN - NLM STAT- MEDLINE DCOM- 20031202 LR - 20211203 IS - 0021-9258 (Print) IS - 0021-9258 (Linking) VI - 278 IP - 41 DP - 2003 Oct 10 TI - AMP-activated protein kinase activity is critical for hypoxia-inducible factor-1 transcriptional activity and its target gene expression under hypoxic conditions in DU145 cells. PG - 39653-61 AB - AMP-activated protein kinase (AMPK) functions as an energy sensor to provide metabolic adaptations under the ATP-deprived conditions such as hypoxia. In the present study, we considered a role of AMPK in the adaptive response to hypoxia by examining whether AMPK is involved in the regulation of hypoxia-inducible factor-1 (HIF-1), a heterodimeric transcription factor that is critical for hypoxic induction of physiologically important genes. We demonstrate that hypoxia or CoCl2 rapidly activated AMPK in DU145 human prostate cancer cells, and its activation preceded the induction of HIF-1 alpha expression. Under these conditions, blockade of AMPK activity by a pharmacological or molecular approach significantly attenuated hypoxia-induced responses such as HIF-1 target gene expression, secretion of vascular endothelial growth factor, glucose uptake, and HIF-1-dependent reporter gene expression, indicating that AMPK is critical for the HIF-1 transcriptional activity and its target gene expression. Its functional requirement for HIF-1 activity was also demonstrated in several different cancer cell lines, but AMPK activation alone was not sufficient to stimulate the HIF-1 transcriptional activity. We further present data showing that AMPK transmits a positive signal for HIF-1 activity via a signaling pathway that is independent of phosphatidylinositol 3-kinase/AKT and several mitogen-activated protein kinases. Taken together, our results suggest that AMPK is a novel and critical component of HIF-1 regulation, implying its new roles in oxygen-regulated cellular phenomena. FAU - Lee, Minyoung AU - Lee M AD - Department of Molecular Biology, Medical Research Center for Bioreaction to Reactive Oxygen Species, Kyung Hee University College of Medicine, Seoul, Korea. FAU - Hwang, Jin-Taek AU - Hwang JT FAU - Lee, Hye-Jeong AU - Lee HJ FAU - Jung, Seung-Nam AU - Jung SN FAU - Kang, Insug AU - Kang I FAU - Chi, Sung-Gil AU - Chi SG FAU - Kim, Sung-Soo AU - Kim SS FAU - Ha, Joohun AU - Ha J LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PT - Retracted Publication DEP - 20030804 PL - United States TA - J Biol Chem JT - The Journal of biological chemistry JID - 2985121R RN - 0 (DNA, Neoplasm) RN - 0 (DNA-Binding Proteins) RN - 0 (Glucose Transporter Type 1) RN - 0 (HIF1A protein, human) RN - 0 (Hypoxia-Inducible Factor 1) RN - 0 (Hypoxia-Inducible Factor 1, alpha Subunit) RN - 0 (Monosaccharide Transport Proteins) RN - 0 (Multienzyme Complexes) RN - 0 (Nuclear Proteins) RN - 0 (RNA, Messenger) RN - 0 (RNA, Neoplasm) RN - 0 (SLC2A1 protein, human) RN - 0 (Transcription Factors) RN - 0 (Vascular Endothelial Growth Factor A) RN - 3G0H8C9362 (Cobalt) RN - EC 2.7.11.1 (Protein Serine-Threonine Kinases) RN - EC 2.7.11.31 (AMP-Activated Protein Kinases) RN - EVS87XF13W (cobaltous chloride) SB - IM RIN - J Biol Chem. 2018 Nov 16;293(46):18013. PMID: 30446603 MH - AMP-Activated Protein Kinases MH - Base Sequence MH - Cell Hypoxia MH - Cell Line, Tumor MH - Cobalt/pharmacology MH - DNA, Neoplasm/genetics MH - DNA-Binding Proteins/*genetics/*metabolism MH - Enzyme Activation MH - Gene Expression/drug effects MH - Glucose Transporter Type 1 MH - Humans MH - Hypoxia-Inducible Factor 1 MH - Hypoxia-Inducible Factor 1, alpha Subunit MH - Male MH - Monosaccharide Transport Proteins/genetics MH - Multienzyme Complexes/*metabolism MH - Nuclear Proteins/*genetics/*metabolism MH - Prostatic Neoplasms/genetics/metabolism MH - Protein Serine-Threonine Kinases/*metabolism MH - RNA, Messenger/genetics/metabolism MH - RNA, Neoplasm/genetics/metabolism MH - Signal Transduction MH - Transcription Factors/*genetics/*metabolism MH - Transcription, Genetic MH - Vascular Endothelial Growth Factor A/genetics EDAT- 2003/08/06 05:00 MHDA- 2003/12/03 05:00 CRDT- 2003/08/06 05:00 PHST- 2003/08/06 05:00 [pubmed] PHST- 2003/12/03 05:00 [medline] PHST- 2003/08/06 05:00 [entrez] AID - S0021-9258(20)83014-2 [pii] AID - 10.1074/jbc.M306104200 [doi] PST - ppublish SO - J Biol Chem. 2003 Oct 10;278(41):39653-61. doi: 10.1074/jbc.M306104200. Epub 2003 Aug 4.