Coenzyme Q10, a cutaneous antioxidant and energizer.
The processes of aging and photoaging are associated with an increase in cellular oxidation. This may be in part due to a decline in the levels of the endogenous cellular antioxidant coenzyme Q10 (ubiquinone, CoQ10). Therefore, we have investigated whether topical application of CoQ10 has the beneficial effect of preventing photoaging. We were able to demonstrate that CoQ10 penetrated into the viable layers of the epidermis and reduce the level of oxidation measured by weak photon emission. Furthermore, a reduction in wrinkle depth following CoQ10 application was also shown. CoQ10 was determined to be effective against UVA mediated oxidative stress in human keratinocytes in terms of thiol depletion, activation of specific phosphotyrosine kinases and prevention of oxidative DNA damage. CoQ10 was also able to significantly suppress the expression of collagenase in human dermal fibroblasts following UVA irradiation. These results indicate that CoQ10 has the efficacy to prevent many of the detrimental effects of photoaging.
Paul Gerson Unna Research Center, Beiersdorf AG, Hamburg, Germany.
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Hoppe
J
J
Bergemann
W
W
Diembeck
J
J
Ennen
S
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Gohla
I
I
Harris
J
J
Jacob
J
J
Kielholz
W
W
Mei
D
D
Pollet
D
D
Schachtschabel
G
G
Sauermann
V
V
Schreiner
F
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Stäb
F
F
Steckel
D000975:Antioxidants / Q000378:metabolism* / Q000494:pharmacology / Q000627:therapeutic use; D002478:Cells, Cultured; D003067:Coenzymes; D003358:Cosmetics; D005347:Fibroblasts / Q000187:drug effects / Q000502:physiology; D006801:Humans; D008027:Light; D012867:Skin / Q000187:drug effects* / Q000528:radiation effects; D015595:Skin Aging / Q000187:drug effects*; D012879:Skin Physiological Phenomena / Q000187:drug effects / Q000528:radiation effects; D014451:Ubiquinone / Q000031:analogs & derivatives* / Q000494:pharmacology / Q000502:physiology / Q000627:therapeutic use
D000975:Antioxidants; D003067:Coenzymes; D003358:Cosmetics; D014451:Ubiquinone; C024989:coenzyme Q10