Cardiff University | Prifysgol Caerdydd ORCA
Online Research @ Cardiff 
WelshClear Cookie - decide language by browser settings

Role of Heme Oxygenase-1 in Human Endothelial Cells: Lesson From the Promoter Allelic Variants

Taha, H., Skrzypek, K., Guevara, I., Nigisch, A., Mustafa, S., Grochot-Przeczek, A., Ferdek, Pawel, Was, H., Kotlinowski, J., Kozakowska, M., Balcerczyk, A., Muchova, L., Vitek, L., Weigel, G., Dulak, J. and Jozkowicz, A. 2010. Role of Heme Oxygenase-1 in Human Endothelial Cells: Lesson From the Promoter Allelic Variants. Arteriosclerosis Thrombosis and Vascular Biology 30 (8) , pp. 1634-1641. 10.1161/ATVBAHA.110.207316

Full text not available from this repository.


Objective— Heme oxygenase-1 (HO-1) is an antioxidative, antiinflammatory, and cytoprotective enzyme that is induced in response to cellular stress. The HO-1 promoter contains a (GT)n microsatellite DNA, and the number of GT repeats can influence the occurrence of cardiovascular diseases. We elucidated the effect of this polymorphism on endothelial cells isolated from newborns of different genotypes. Methods and Results— On the basis of HO-1 expression, we classified the HO-1 promoter alleles into 3 groups: short (S) (most active, GT ≤23), medium (moderately active, GT=24 to 28), and long (least active, GT ≥29). The presence of the S allele led to higher basal HO-1 expression and stronger induction in response to cobalt protoporphyrin, prostaglandin-J2, hydrogen peroxide, and lipopolysaccharide. Cells carrying the S allele survived better under oxidative stress, a fact associated with the lower concentration of oxidized glutathione and more favorable oxidative status, as determined by measurement of the ratio of glutathione to oxidized glutathione. Moreover, they proliferated more efficiently in response to vascular endothelial growth factor A, although the vascular endothelial growth factor–induced migration and sprouting of capillaries were not influenced. Finally, the presence of the S allele was associated with lower production of some proinflammatory mediators, such as interleukin-1β, interleukin-6, and soluble intercellular adhesion molecule-1. Conclusion— The (GT)n promoter polymorphism significantly modulates a cytoprotective, proangiogenic, and antiinflammatory function of HO-1 in human endothelium.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Biosciences
Publisher: American Heart Association, Inc.
ISSN: 1079-5642
Last Modified: 12 Jun 2019 02:41

Citation Data

Cited 78 times in Google Scholar. View in Google Scholar

Cited 57 times in Scopus. View in Scopus. Powered By Scopus® Data

Actions (repository staff only)

Edit Item Edit Item