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KMID : 0624620090420100631
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BMB Reports
2009 Volume.42 No. 10 p.631 ~ p.635
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Heat shock transcription factors and sensory placode development
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Nakai Akira
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Abstract
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The heat shock transcription factor (HSF) family consists of at least three members in mammals and regulates expression of heat shock proteins in response to heat shock and proteotoxic stresses. Especially, HSF1 is indispensable for this response. Members of this family are also involved in development of some tissues such as the brain and reproductive organs. However, we did not know the molecular mechanisms that regulate developmental processes. Involvement of HSFs in the sensory development was implicated by the finding that human hereditary cataract is associated with mutations of the HSF4 gene. Analysis of gene-disrupted mice showed that HSF4 and HSF1 are required for the lens and the olfactory epithelium, respectively. Furthermore, a common molecular mechanism that regulates developmental processes was revealed by analyzing roles of HSFs in the two developmentally-related organs.
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KEYWORD
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Cytokine, Heat shock protein, Placode, Sensory organ, Transcription factor
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