Abstract
Resistin was initially identified as a protein, secreted by adipocytes, which inhibits insulin action and adipose differentiation. The three proteins homologous to resistin were termed resistin-like molecules (RELM)α, β and γ . Resistin and RELMα are abundantly expressed in adipose, but RELMβ and RELMγ are secreted mainly from the gut. Recently, resistin and RELMs were reported to be associated with inflammation. For example, RELMα , viewed as an inflammation-related protein, was originally identified in broncho-alveolar lavage fluid obtained from animals with experimentally induced pulmonary inflammation. RELMβ is also related to bacterial colonization, but RELMβ injection or hepatic overexpression of RELMβ induced insulin resistance. RELMγ isolated from rat nasal respiratory epithelium was found to be altered by cigarette smoke. Thus, resistin and RELMs could be useful for assessing the inflammatory condition in vivo. On the other hand, whether the serum resistin or RELM concentration is strongly related to insulin resistance remains unclear. However, taking recent studies showing a close relationship between inflammation and insulin resistance in diabetes into consideration, these proteins may have interactive roles linking inflammation and insulin resistance, both of which major involvement in the progression of atherosclerosis. If so, the serum resistin or RELM concentration may be a good marker of atherosclerotic risk. In addition, these proteins or unidentified receptors are potential therapeutic targets for the treatment of diabetes and prevention of atherosclerosis. These possibilities merit further study.
Keywords: insulin, adipose mass, MEK1-ERK pathway, metabolic syndrome, RELM isoforms
Current Diabetes Reviews
Title: Physiological Significance of Resistin and Resistin-Like Molecules in the Inflammatory Process and Insulin Resistance
Volume: 2 Issue: 4
Keywords: insulin, adipose mass, MEK1-ERK pathway, metabolic syndrome, RELM isoforms
Abstract: Resistin was initially identified as a protein, secreted by adipocytes, which inhibits insulin action and adipose differentiation. The three proteins homologous to resistin were termed resistin-like molecules (RELM)α, β and γ . Resistin and RELMα are abundantly expressed in adipose, but RELMβ and RELMγ are secreted mainly from the gut. Recently, resistin and RELMs were reported to be associated with inflammation. For example, RELMα , viewed as an inflammation-related protein, was originally identified in broncho-alveolar lavage fluid obtained from animals with experimentally induced pulmonary inflammation. RELMβ is also related to bacterial colonization, but RELMβ injection or hepatic overexpression of RELMβ induced insulin resistance. RELMγ isolated from rat nasal respiratory epithelium was found to be altered by cigarette smoke. Thus, resistin and RELMs could be useful for assessing the inflammatory condition in vivo. On the other hand, whether the serum resistin or RELM concentration is strongly related to insulin resistance remains unclear. However, taking recent studies showing a close relationship between inflammation and insulin resistance in diabetes into consideration, these proteins may have interactive roles linking inflammation and insulin resistance, both of which major involvement in the progression of atherosclerosis. If so, the serum resistin or RELM concentration may be a good marker of atherosclerotic risk. In addition, these proteins or unidentified receptors are potential therapeutic targets for the treatment of diabetes and prevention of atherosclerosis. These possibilities merit further study.
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Cite this article as:
Physiological Significance of Resistin and Resistin-Like Molecules in the Inflammatory Process and Insulin Resistance, Current Diabetes Reviews 2006; 2 (4) . https://dx.doi.org/10.2174/1573399810602040449
DOI https://dx.doi.org/10.2174/1573399810602040449 |
Print ISSN 1573-3998 |
Publisher Name Bentham Science Publisher |
Online ISSN 1875-6417 |
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