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Effect of novel marine nutraceuticals on IL-1α-mediated TNF-α release from UVB-irradiated human melanocyte-derived cells.

Abstract：

:UV-induced inflammation and reactive oxygen species formation are involved in the development of melanoma. Natural products like 5β-scymnol and CO(2)-supercritical fluid extract (CO(2)-SFE) of mussel oil contain anti-inflammatory and antioxidant properties that may aid in reducing the deleterious effects of UV radiation. Therefore, their effect on the release of the proinflammatory cytokine, tumour necrosis factor-α (TNF-α), from UVB-irradiated human melanocytic cells was examined. Human epidermal melanocytes (HEM) and MM96L melanoma cells were exposed to UVB radiation and IL-1α. Cell viability and TNF-α levels were determined 24 hours after-irradiation while p38 mitogen-activated protein kinase (MAPK) activation was observed at 15 min after-irradiation. When α-tocopherol, CO(2)-SFE mussel oil, and 5β-scymnol were added to the UVB-irradiated HEM cells treated with IL-1α, TNF-α levels fell by 53%, 65%, and 76%, respectively, while no inhibition was evident in MM96L cells. This effect was not due to inhibition of the intracellular p38 MAPK signalling pathway. These compounds may be useful in preventing inflammation-induced damage to normal melanocytes.

journal_name

Oxid Med Cell Longev

journal_title

Oxidative medicine and cellular longevity

authors

Muthusamy V,Hodges LD,Macrides TA,Boyle GM,Piva TJ

doi

10.1155/2011/728645

subject

Has Abstract

pub_date

2011-01-01 00:00:00

pages

728645

eissn

1942-0900

issn

1942-0994

journal_volume

2011

pub_type

杂志文章

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