Human fibroblasts lacking trans-stilbene oxide active glutathione transferase exhibit increased cell death when exposed to polycyclic aromatic hydrocarbons

Pessah-Rasmussen, HLund University,Lunds universitet,Rehabiliteringsmedicin,Forskargrupper vid Lunds universitet,Neurologi, Lund,Sektion IV,Institutionen för kliniska vetenskaper, Lund,Medicinska fakulteten,Rehabilitation medicine,Lund University Research Groups,Neurology, Lund,Section IV,Department of Clinical Sciences, Lund,Faculty of Medicine,Skåne University Hospital (author)

Glutathione transferases (GST) are detoxifying enzymes who act with many endogenous and exogenous substances such as polycyclic aromatic hydrocarbons (PAH). The GST activity towards trans-stilbene oxide (GST-tSBO) is inherited in an autosomal dominant fashion and can be separated in high (GST-positive) and low (GST-negative) phenotypes when measured in blood. Human fibroblast cultures were established from males matched for age, smoking habits and clinical manifestations of atherosclerosis. Matched pairs of GST-negative and GST-positive fibroblasts were studied. There was a very strong correlation between the levels of GST-tSBO in peripheral blood and in cultured fibroblasts within the same individual. When fibroblasts were exposed to benzo(a)pyrene (BP) or dimethylbenzanthracene (DMBA) GST-negative cells produced relatively more collagen than GST-positive cells. GST-negative fibroblasts showed a greater cell death than GST-positive fibroblasts as well among controls as after exposure to PAH. It is concluded that lack of GST-tSBO is easily discriminated in cultured skin fibroblasts. GST-negative and GST-positive fibroblasts showed different susceptibility towards some toxic stimuli that might be of importance in atherogenesis.

MEDICIN OCH HÄLSOVETENSKAP Medicinska och farmaceutiska grundvetenskaper Farmakologi och toxikologi hsv//swe
MEDICAL AND HEALTH SCIENCES Basic Medicine Pharmacology and Toxicology hsv//eng
Aged
Cell Death
Cells, Cultured
Collagen
DNA
Fibroblasts
Glutathione Transferase
Humans
Male
Middle Aged
Polycyclic Compounds
Skin
Stilbenes
Journal Article
Research Support, Non-U.S. Gov't

Stavenow, L. (author)
Seidegård, JLund University,Lunds universitet,Sektion V,Institutionen för kliniska vetenskaper, Lund,Medicinska fakulteten,Section V,Department of Clinical Sciences, Lund,Faculty of Medicine(Swepub:lu)extLU-263 (author)
Berglund, Anna (author)
RehabiliteringsmedicinForskargrupper vid Lunds universitet (creator_code:org_t)

By the author/editor: Pessah-Rasmussen ...; Stavenow, L.; Seidegård, J; Berglund, Anna

About the subject

MEDICAL AND HEALTH SCIENCES: MEDICAL AND HEAL ...; and Basic Medicine; and Pharmacology and ...

Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.