Cobalt induces heme oxygenase-1 expression by a hypoxia-inducible factor-independent mechanism in Chinese hamster ovary cells: regulation by Nrf2 and MafG …

P Gong, B Hu, D Stewart, M Ellerbe… - Journal of Biological …, 2001 - ASBMB
We have shown previously that activation of the heme oxygenase-1 (ho-1) gene by hypoxia
in aortic smooth muscle cells is mediated by hypoxia-inducible factor-1 (HIF-1). In mutant …

Hypoxia-inducible factor-1 mediates transcriptional activation of the heme oxygenase-1 gene in response to hypoxia

PJ Lee, BH Jiang, BY Chin, NV Iyer, J Alam… - Journal of Biological …, 1997 - ASBMB
Exposure of rats to hypoxia (7% O 2) markedly increased the level of heme oxygenase-1
(HO-1) mRNA in several tissues. Accumulation of HO-1 transcripts was also observed after …

Nrf2, a Cap'n'Collar transcription factor, regulates induction of the heme oxygenase-1 gene

J Alam, D Stewart, C Touchard, S Boinapally… - Journal of Biological …, 1999 - ASBMB
Stress response elements, which mediate induction of the mouse heme oxygenase-1 (HO-1)
gene by several agents, resemble the binding site for the activator protein-1 (Jun/Fos), Maf …

Differential signaling pathways ofHO-1 gene expression in pulmonary and systemic vascular cells

CL Hartsfield, J Alam, AMK Choi - American Journal of …, 1999 - journals.physiology.org
Heme oxygenase-1 (HO-1) is induced by oxidative stress and plays an important role in
cellular protection against oxidant injury. Increasing evidence also suggests that HO-1 is …

Iron regulates hyperoxia-dependent human heme oxygenase 1 gene expression in pulmonary endothelial cells

S Fogg, A Agarwal, HS Nick… - American journal of …, 1999 - atsjournals.org
The endothelium of the lung is sensitive to the toxic effects of oxygen, and early evidence of
toxicity is characterized by protein leak and extravasation of red blood cells. The …

AP-1 and STAT mediate hyperoxia-induced gene transcription of heme oxygenase-1

PJ Lee, SL Camhi, BY Chin, J Alam… - American Journal of …, 2000 - journals.physiology.org
We have previously shown marked induction of the stress-inducible gene heme oxygenase-
1 (HO-1) in vivo and in vitro after hyperoxia. In RAW 264.7 cells, HO-1 induction is …

Repression of heme oxygenase-1 by hypoxia in vascular endothelial cells

M Nakayama, K Takahashi, T Kitamuro… - Biochemical and …, 2000 - Elsevier
Heme oxygenase 1 (HO-1), a rate-limiting enzyme in heme catabolism, has been reported to
be induced by hypoxia. Unexpectedly, here we show that expression of HO-1 mRNA is …

Regulation of heme oxygenase-1 expression in vivo and in vitro in hyperoxic lung injury.

PJ Lee, J Alam, SL Sylvester, N Inamdar… - American journal of …, 1996 - atsjournals.org
Using hyperoxia as a model of oxidant-induced lung injury in the rat, we explored the
regulation of heme oxygenase-1 (HO-1) expression in vivo and in vitro. We demonstrate …

Transcriptional regulation of the heme oxygenase 1 gene by pyrrolidine dithiocarbamate

CL Hartsfield, J Alam, AMK Choi - The FASEB journal, 1998 - Wiley Online Library
ABSTRACT Heme oxygenase 1 (HO‐1), a stress response protein, is highly induced in
response to various agents causing oxidative stress including ultraviolet irradiation, sodium …

Hypoxia-inducible factor 2α binds to cobalt in vitro

Y Yuan, D Beitner-Johnson, DE Millhorn - Biochemical and biophysical …, 2001 - Elsevier
The hypoxia-inducible factor (HIF) activates the expression of genes that contain a hypoxia
response element (HRE). The alpha subunit of the HIF transcription factors is degraded by …