期刊
JOURNAL OF INVESTIGATIVE DERMATOLOGY SYMPOSIUM PROCEEDINGS
卷 7, 期 1, 页码 46-50出版社
BLACKWELL PUBLISHING INC
DOI: 10.1046/j.1523-1747.2002.19638.x
关键词
apoptosis; DNA damage; receptors; signal transduction; ultraviolet radiation
类别
Ultraviolet radiation represents one of the most relevant environmental factors because of its hazardous health effects, which include induction of skin cancer, premature skin aging, and exacerbation of infectious diseases. The biologic effects exerted by ultraviolet radiation have been well characterized by a variety of in vitro and in vivo studies. The events taking place inside the cell during the ultraviolet response, however, remained unclear for quite a long time. Molecular photobiology has increased our knowledge about ultraviolet-induced signal transduction enormously within the last 10 years. For a long time, nuclear DNA has been regarded as the only chromophore for ultraviolet radiation. Today we know that ultraviolet radiation can affect also other molecular targets located in the cytoplasm and at the cell membrane. These targets include cell surface receptors, kinases, phosphatases, and transcription factors. Detailed knowledge about ultraviolet-induced signal transduction will certainly increase our understanding of how ultraviolet radiation exerts its biologic effects and furthermore will provide us with tools to interfere with these pathways, thereby reducing the adverse effects of ultraviolet radiation.
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