Of mice and men (and women) and the acylation-stimulating protein pathway
作者:
Allan Sniderman,
Magdalena Maslowska,
Katherine Cianflone,
期刊:
Current Opinion in Lipidology
(OVID Available online 2000)
卷期:
Volume 11,
issue 3
页码: 291-296
ISSN:0957-9672
年代: 2000
出版商: OVID
数据来源: OVID
摘要:
The storage and release of energy by adipocytes is of fundamental biologic importance. Not surprisingly, therefore, the rate at which these processes occur can be modulated by a variety of physiologic molecules. A newly recognized participant is produced by adipocytes themselves: acylation-stimulating protein (ASP). This article focuses on the most recent in-vivo evidence regarding how the ASP pathway may influence energy storage and release. In brief, the rate at which triglycerides are cleared from plasma (i.e. the rate at which they are hydrolysed) is determined by lipoprotein lipase and insulin, which is the principal hormone that regulates lipoprotein lipase. By contrast, the ASP pathway modulates the rate at which fatty acids are taken up and converted to triglycerides by adipocytes. Under certain circumstances, however, reduction of activity of the ASP pathway may negatively impact on the first step of the process. ASP also influences the rate at which fatty acids are released by adipocytes, and it is clear that insulin and ASP interact in a variety of ways that involve energy storage and release. Accordingly, to understand the impact of any intervention on energy storage and release by adipocytes, the effects of both insulin and ASP must be taken into account.
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