The nitroxide Tempol affords protection against ultraviolet radiation in a transgenic murine fibroblast culture model of cutaneous photoaging.

Abstract:

:The generation of reactive oxygen species is among the various mechanisms by which ultraviolet radiation damages skin. Tempol, a superoxide dismutase analogue which readily penetrates cell membranes when administered exogenously, has been shown to provide protection against some forms of oxygen-dependent damage. In this study, we measured the ability of Tempol to protect against ultraviolet A- and ultraviolet B-induced damage, using a previously described transgenic mouse model of cutaneous photoaging. The ability of Tempol to prevent ultraviolet radiation-induced elastin promoter activation was determined in vitro. Tempol provided over 50% protection against ultraviolet B and over 70% protection against ultraviolet A as measured in our in vitro system. These results demonstrate the ability of the superoxide dismutase mimic, Tempol, to protect against ultraviolet induced elastin promoter activation. This compound could be a useful pharmacological agent to prevent cutaneous photoaging.

journal_name

Exp Dermatol

journal_title

Experimental dermatology

authors

Bernstein EF,Kong SK,Brown DB,Kwak BC,Takeuchi T,Gasparro FP,Uitto J

doi

10.1034/j.1600-0625.2001.100107.x

subject

Has Abstract

pub_date

2001-02-01 00:00:00

pages

55-61

issue

1

eissn

0906-6705

issn

1600-0625

pii

exd100107

journal_volume

10

pub_type

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