Quick Search:

uzh logo
Browse by:

Zurich Open Repository and Archive

Maintenance: Tuesday, 5.7.2016, 07:00-08:00

Maintenance work on ZORA and JDB on Tuesday, 5th July, 07h00-08h00. During this time there will be a brief unavailability for about 1 hour. Please be patient.

Stroka, D M; Burkhardt, T; Desbaillets, I; Wenger, R H; Neil, D A; Bauer, C; Gassmann, M; Candinas, D (2001). HIF-1 is expressed in normoxic tissue and displays an organ-specific regulation under systemic hypoxia. FASEB Journal, 15(13):2445-2453.

Full text not available from this repository.

View at publisher


Adaptation to hypoxia is regulated by hypoxia-inducible factor 1 (HIF-1), a heterodimeric transcription factor consisting of an oxygen-regulated alpha subunit and a constitutively expressed beta subunit. Although HIF-1 is regulated mainly by oxygen tension through the oxygen-dependent degradation of its alpha subunit, in vitro it can also be modulated by cytokines, hormones and genetic alterations. To investigate HIF-1 activation in vivo, we determined the spatial and temporal distribution of HIF-1 in healthy mice subjected to varying fractions of inspiratory oxygen. Immunohistochemical examination of brain, kidney, liver, heart, and skeletal muscle revealed that HIF-1alpha is present in mice kept under normoxic conditions and is further increased in response to systemic hypoxia. Moreover, immunoblot analysis showed that the kinetics of HIF-1alpha expression varies among different organs. In liver and kidney, HIF-1alpha reaches maximal levels after 1 h and gradually decreases to baseline levels after 4 h of continuous hypoxia. In the brain, however, HIF-1alpha is maximally expressed after 5 h and declines to basal levels by 12 h. Whereas HIF-1beta is constitutively expressed in brain and kidney nuclear extracts, its hepatic expression increases concomitantly with HIF-1alpha. Overall, HIF-1alpha expression in normoxic mice suggests that HIF-1 has an important role in tissue homeostasis.


399 citations in Web of Science®
94 citations in Scopus®
Google Scholar™


Additional indexing

Item Type:Journal Article, refereed
Communities & Collections:04 Faculty of Medicine > Institute of Physiology
07 Faculty of Science > Institute of Physiology
Dewey Decimal Classification:570 Life sciences; biology
Deposited On:11 Feb 2008 12:23
Last Modified:05 Apr 2016 12:18
Publisher:Federation of American Societies for Experimental Biology
Publisher DOI:10.1096/fj.01-0125com
PubMed ID:11689469

Users (please log in): suggest update or correction for this item

Repository Staff Only: item control page