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Originally published In Press as doi:10.1074/jbc.M204733200 on June 6, 2002
J. Biol. Chem., Vol. 277, Issue 33, 29936-29944, August 16, 2002
Hsp90 Regulates a von Hippel Lindau-independent
Hypoxia-inducible Factor-1 -degradative Pathway*
Jennifer S.
Isaacs,
Yun-Jin
Jung,
Edward G.
Mimnaugh,
Alfredo
Martinez,
Frank
Cuttitta, and
Leonard M.
Neckers
From the Cell and Cancer Biology Branch, Center for Cancer
Research, NCI, National Institutes of Health, Rockville, Maryland
20850
HIF-1 is a normally labile
proangiogenic transcription factor that is stabilized and
activated in hypoxia. Although the von Hippel Lindau (VHL) gene
product, the ubiquitin ligase responsible for regulating HIF-1
protein levels, efficiently targets HIF-1 for rapid
proteasome-dependent degradation under normoxia, HIF-1 is
resistant to the destabilizing effects of VHL under hypoxia. HIF-1
also associates with the molecular chaperone Hsp90. To examine the role
of Hsp90 in HIF-1 function, we used renal carcinoma cell (RCC) lines
that lack functional VHL and express stable HIF-1 protein under
normoxia. Geldanamycin (GA), an Hsp90 antagonist, promoted efficient
ubiquitination and proteasome-mediated degradation of HIF-1 in RCC
in both normoxia and hypoxia. Furthermore, HIF-1 point mutations
that block VHL association did not protect HIF-1 from GA-induced
destabilization. Hsp90 antagonists also inhibited HIF-1
transcriptional activity and dramatically reduced both hypoxia-induced
accumulation of VEGF mRNA and hypoxia-dependent angiogenic activity. These findings demonstrate that disruption of
Hsp90 function 1) promotes HIF-1 degradation via a novel, oxygen-independent E3 ubiquitin ligase and 2) diminishes HIF-1 transcriptional activity. Existence of an Hsp90-dependent
pathway for elimination of HIF-1 predicts that Hsp90 antagonists may be hypoxic cell sensitizers and possess antiangiogenic activity in vivo, thus extending the utility of these drugs as
therapeutic anticancer agents.
*
The costs of publication of this
article were defrayed in part by the
payment of page charges. The article
must therefore be hereby marked
"advertisement" in
accordance with 18 U.S.C. Section
1734 solely to indicate this fact.
To whom correspondence should be addressed: Cell and Cancer
Biology Branch, Center for Cancer Research, NCI, National Institutes of
Health, 9610 Medical Center Dr., Ste. 300, Rockville, MD 20850. Tel.:
301-402-3128 (ext. 318); Fax: 301-402-4422; E-mail:
len@helix.nih.gov.
Copyright © 2002 by The American Society for Biochemistry and Molecular Biology, Inc.

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5757 - 5766.
[Abstract]
[Full Text]
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S. T. Palayoor, M. A. Burgos, A. Shoaibi, P. J. Tofilon, and C. N. Coleman
Effect of Radiation and Ibuprofen on Normoxic Renal Carcinoma Cells Overexpressing Hypoxia-Inducible Factors by Loss of von Hippel-Lindau Tumor Suppressor Gene Function
Clin. Cancer Res.,
June 15, 2004;
10(12):
4158 - 4164.
[Abstract]
[Full Text]
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B. Kaufman, O. Scharf, J. Arbeit, M. Ashcroft, J. M. Brown, R. K. Bruick, J. D. Chapman, S. M. Evans, A. J. Giaccia, A. L. Harris, et al.
Proceedings of the Oxygen Homeostasis/Hypoxia Meeting
Cancer Res.,
May 1, 2004;
64(9):
3350 - 3356.
[Abstract]
[Full Text]
[PDF]
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G. Powis and L. Kirkpatrick
Hypoxia inducible factor-1{alpha} as a cancer drug target
Mol. Cancer Ther.,
May 1, 2004;
3(5):
647 - 654.
[Abstract]
[Full Text]
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J. S. Isaacs, Y.-J. Jung, and L. Neckers
Aryl Hydrocarbon Nuclear Translocator (ARNT) Promotes Oxygen-independent Stabilization of Hypoxia-inducible Factor-1{alpha} by Modulating an Hsp90-dependent Regulatory Pathway
J. Biol. Chem.,
April 16, 2004;
279(16):
16128 - 16135.
[Abstract]
[Full Text]
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J. Zhou, T. Schmid, R. Frank, and B. Brune
PI3K/Akt Is Required for Heat Shock Proteins to Protect Hypoxia-inducible Factor 1{alpha} from pVHL-independent Degradation
J. Biol. Chem.,
April 2, 2004;
279(14):
13506 - 13513.
[Abstract]
[Full Text]
[PDF]
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G. Hopfl, O. Ogunshola, and M. Gassmann
HIFs and tumors--causes and consequences
Am J Physiol Regulatory Integrative Comp Physiol,
April 1, 2004;
286(4):
R608 - R623.
[Abstract]
[Full Text]
[PDF]
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N. C Chi and J. S Karliner
Molecular determinants of responses to myocardial ischemia/reperfusion injury: focus on hypoxia-inducible and heat shock factors
Cardiovasc Res,
February 15, 2004;
61(3):
437 - 447.
[Abstract]
[Full Text]
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K. S. Bisht, C. M. Bradbury, D. Mattson, A. Kaushal, A. Sowers, S. Markovina, K. L. Ortiz, L. K. Sieck, J. S. Isaacs, M. W. Brechbiel, et al.
Geldanamycin and 17-Allylamino-17-demethoxygeldanamycin Potentiate the in Vitro and in Vivo Radiation Response of Cervical Tumor Cells via the Heat Shock Protein 90-Mediated Intracellular Signaling and Cytotoxicity
Cancer Res.,
December 15, 2003;
63(24):
8984 - 8995.
[Abstract]
[Full Text]
[PDF]
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H.-T. Yuan, X.-Z. Li, J. E. Pitera, D. A. Long, and A. S. Woolf
Peritubular Capillary Loss after Mouse Acute Nephrotoxicity Correlates with Down-Regulation of Vascular Endothelial Growth Factor-A and Hypoxia-Inducible Factor-1{alpha}
Am. J. Pathol.,
December 1, 2003;
163(6):
2289 - 2301.
[Abstract]
[Full Text]
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R. K. Bruick
Oxygen sensing in the hypoxic response pathway: regulation of the hypoxia-inducible transcription factor
Genes & Dev.,
November 1, 2003;
17(21):
2614 - 2623.
[Full Text]
[PDF]
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P. de Candia, D. B. Solit, D. Giri, E. Brogi, P. M. Siegel, A. B. Olshen, W. J. Muller, N. Rosen, and R. Benezra
Angiogenesis impairment in Id-deficient mice cooperates with an Hsp90 inhibitor to completely suppress HER2/neu-dependent breast tumors
PNAS,
October 14, 2003;
100(21):
12337 - 12342.
[Abstract]
[Full Text]
[PDF]
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M. P. Goetz, D. O. Toft, M. M. Ames, and C. Erlichman
The Hsp90 chaperone complex as a novel target for cancer therapy
Ann. Onc.,
August 1, 2003;
14(8):
1169 - 1176.
[Abstract]
[Full Text]
[PDF]
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S. T. Palayoor, P. J. Tofilon, and C. N. Coleman
Ibuprofen-mediated Reduction of Hypoxia-inducible Factors HIF-1{alpha} and HIF-2{alpha} in Prostate Cancer Cells
Clin. Cancer Res.,
August 1, 2003;
9(8):
3150 - 3157.
[Abstract]
[Full Text]
[PDF]
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E. Metzen, J. Zhou, W. Jelkmann, J. Fandrey, and B. Brune
Nitric Oxide Impairs Normoxic Degradation of HIF-1{alpha} by Inhibition of Prolyl Hydroxylases
Mol. Biol. Cell,
August 1, 2003;
14(8):
3470 - 3481.
[Abstract]
[Full Text]
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S.-k. Park, A. M. Dadak, V. H. Haase, L. Fontana, A. J. Giaccia, and R. S. Johnson
Hypoxia-Induced Gene Expression Occurs Solely through the Action of Hypoxia-Inducible Factor 1{alpha} (HIF-1{alpha}): Role of Cytoplasmic Trapping of HIF-2{alpha}
Mol. Cell. Biol.,
July 15, 2003;
23(14):
4959 - 4971.
[Abstract]
[Full Text]
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L. E. Huang and H. F. Bunn
Hypoxia-inducible Factor and Its Biomedical Relevance
J. Biol. Chem.,
May 23, 2003;
278(22):
19575 - 19578.
[Full Text]
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E. Metzen, U. Berchner-Pfannschmidt, P. Stengel, J. H. Marxsen, I. Stolze, M. Klinger, W. Q. Huang, C. Wotzlaw, T. Hellwig-Burgel, W. Jelkmann, et al.
Intracellular localisation of human HIF-1{alpha} hydroxylases: implications for oxygen sensing
J. Cell Sci.,
April 1, 2003;
116(7):
1319 - 1326.
[Abstract]
[Full Text]
[PDF]
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S. J. Welsh, R. R. Williams, A. Birmingham, D. J. Newman, D. L. Kirkpatrick, and G. Powis
The Thioredoxin Redox Inhibitors 1-Methylpropyl 2-Imidazolyl Disulfide and Pleurotin Inhibit Hypoxia-induced Factor 1{alpha} and Vascular Endothelial Growth Factor Formation
Mol. Cancer Ther.,
March 1, 2003;
2(3):
235 - 243.
[Abstract]
[Full Text]
[PDF]
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Y.-J. Jung, J. S. Isaacs, S. Lee, J. Trepel, and L. Neckers
Microtubule Disruption Utilizes an NFkappa B-dependent Pathway to Stabilize HIF-1alpha Protein
J. Biol. Chem.,
February 21, 2003;
278(9):
7445 - 7452.
[Abstract]
[Full Text]
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L. E. Huang, E. A. Pete, M. Schau, J. Milligan, and J. Gu
Leu-574 of HIF-1alpha Is Essential for the von Hippel-Lindau (VHL)-mediated Degradation Pathway
J. Biol. Chem.,
October 25, 2002;
277(44):
41750 - 41755.
[Abstract]
[Full Text]
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D. A. Chan, P. D. Sutphin, N. C. Denko, and A. J. Giaccia
Role of Prolyl Hydroxylation in Oncogenically Stabilized Hypoxia-inducible Factor-1alpha
J. Biol. Chem.,
October 11, 2002;
277(42):
40112 - 40117.
[Abstract]
[Full Text]
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W. Xu, M. Marcu, X. Yuan, E. Mimnaugh, C. Patterson, and L. Neckers
Chaperone-dependent E3 ubiquitin ligase CHIP mediates a degradative pathway for c-ErbB2/Neu
PNAS,
October 1, 2002;
99(20):
12847 - 12852.
[Abstract]
[Full Text]
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M. D. Basson
Gut Mucosal Healing : Is the Science Relevant?
Am. J. Pathol.,
October 1, 2002;
161(4):
1101 - 1105.
[Full Text]
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J.M. ARBEIT
Quiescent Hypervascularity Mediated by Gain of HIF-1{alpha} Function
Cold Spring Harb Symp Quant Biol,
January 1, 2002;
67(0):
133 - 142.
[Abstract]
[PDF]
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Copyright © 2002 by the American Society for Biochemistry and Molecular Biology.
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