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ºñ¸¸Àº ¿¡³ÊÁö Èí¼ö¿Í ÀúÀå, Àν¶¸° ÀúÇ×¼º, ´ë»ç¿Í ¿¬°üµÈ º¯È­·Î ÀÎÇØ Áö¹æ ¹«°Ô°¡ Áõ°¡µÇ´Â ¸¸¼ºÀ̸鼭 ³·Àº Á¤µµÀÇ ¿°Áõ »óÅÂ¿Í ¿¬°üµÇ¾î ÀÖ´Ù´Â °ÍÀ» ¹Ì±¹ ÄÝ·Òºñ¾Æ ´ëÇб³ Naomi Berrie Diabetes CenterÀÇ Anthony W. Ferrante, Jr. ¿¬±¸Áø°ú Novartis Institutes for Biomedical ResearchÀÇ Hong Chen ±×·ìÀÇ ¿¬±¸ °á°ú°¡ ¹ßÇ¥('Journal of Clinical Investigation¡±2003.12.15.)µÇ¾ú´Ù. ±×·¯³ª Chronic inflammation°ú Àν¶¸° ÀúÇ×¼º »çÀ̸¦ ¿¬°áÇÏ´Â ºÐÀÚÀû ½ÅÈ£Àü´Þ °æ·Î´Â ¾ÆÁ÷ ¾Ë·ÁÁ® ÀÖÁö ¾Ê´Ù. À̹ø ÀÌ µÎ ¿¬±¸±×·ìÀº ºñ¸¸ÀÎ Áö¹æ Á¶Á÷Àº ´ë½Ä¼¼Æ÷°¡ ħÅõµÈ Ư¼ºÀ» °¡Áö°í, ÀÌµé ´ë½Ä¼¼Æ÷°¡ Áö¹æ Á¶Á÷ÀÇ ¿°ÁõÀ» ÀÏÀ¸Å°´Â Áß¿äÇÑ ¿øõÀÌ µÈ´Ù´Â °ÍÀ» ¹ßÇ¥Çß´Ù. ÀÌ µÎ ¿¬±¸ÁøµéÀº ´ë±Ô¸ð ¹üÀ§ÀÇ À¯ÀüÀÚ ¹ßÇö ºÐ¼®°ú Á¶Á÷ÇÐÀû °Ë»ç¸¦ ÅëÇØ, ´Ù¾çÇÑ Á¤µµÀÇ ºñ¸¸ÀÎ ¸¶¿ì½º¿Í ¸¶¸¥ ¸¶¿ì½ºÀÇ ¿©·¯ Á¶Á÷¿¡¼­ À¯ÀüÀÚ ¹ßÇö Â÷À̸¦ ºñ±³ÇÏ¿´´Ù. ±×µéÀº ºñ¸¸¿¡¼­ ÀÇ¹Ì ÀÖ°Ô Á¶ÀýµÇ´Â À¯ÀüÀÚ »ó´ç¼ö°¡ Áö¹æ Á¶Á÷ÀÇ ¿°Áõ À¯ÀüÀÚ¿Í ´ë½Ä¼¼Æ÷ À¯ÀüÀÚµéÀÓÀ» ¾Ë¾Æ³»¾ú´Ù. ¿¬±¸ÁøÀº Áö¹æ Á¶Á÷À¸·ÎÀÇ macrophage infiltrationÀÌ Àΰ£ ºñ¸¸ÀÇ Æ¯Â¡À̸ç, Áö¹æ Á¶Á÷¿¡¼­ ´ë½Ä¼¼Æ÷ÀÇ ÃàÀûÀÌ ºñ¸¸À» ¿¹°ßÇÒ ¼ö ÀÖ´Ù´Â °ÍÀÌ ÀÇ¹Ì ÀÖ´Ù´Â °ÍÀ» ¹àÇô³Â´Ù. ¿¬±¸ÁøÀº ¸¹Àº ¿°Áõ°ú °ü·ÃµÈ À¯ÀüÀÚ¿Í ´ë½Ä¼¼Æ÷ ƯÀÌÀû À¯ÀüÀÚµéÀÇ °í¹ßÇöÀÌ Àν¶¸° ³óµµ°¡ Áõ°¡Çϱ⠾ռ­¼­ ÀϾ¸ç, Àν¶¸° °¨µµ¸¦ ³ôÀÌ´Â ¾à¹°·Î óġ ½Ã À̵é À¯ÀüÀÚµéÀÌ Àú¹ßÇöµÊÀ» ÀÔÁõÇß´Ù. ÀÌ °á°ú´Â ºñ¸¸°ú ¿¬°üµÈ Àν¶¸° ÀúÇ×¼ºÀÌ Àû¾îµµ ºÎºÐÀûÀ¸·Î Áö¹æ Á¶Á÷¿¡¼­ ½ÃÀ۵Ǵ ¸¸¼ºÀû ¿°Áõ ÁúȯÀÓÀ» Á¦½ÃÇÏ´Â °ÍÀÌ´Ù. ¾î¶»°Ô Áö¹æ Á¶Á÷¿¡¼­ ¿°Áõ ¹ÝÀÀÀÌ Àν¶¸° ÀúÇ×¼ºÀ» ÀÏÀ¸Å°´ÂÁö ¹àÇôÁ®¾ß ÇÏÁö¸¸ À̹ø µÎ ¿¬±¸´Â ºñ¸¸¿¡¼­ ÀϾ´Â Áö¹æ Á¶Á÷ÀÇ ºÐÀÚÀû º¯È­¿¡ ´ë½Ä¼¼Æ÷°¡ °ü¿©ÇÑ´Ù´Â °ÍÀ» º¸¿©ÁØ´Ù. ÀÌ´Â ´ë½Ä¼¼Æ÷ÀÇ ºñ¸¸¿¡ ´ëÇÑ ±â¿© ¿ªÇÒÀ» Á¶¸íÇÏ´Â µ¥ ÀÇÀÇ°¡ ÀÖ´Ù. ¿øº» ³í¹®: 1. https://www.the-jci.org/press/19451.pdf Chronic inflammation in fat plays a crucial role in the development of obesity-related insulin resistance Hong Chen Novartis Institutes for Biomedical Research Inc., Cambridge, Massachusetts, USA. Phone: 617-871-7344 Fax: 617-551-9540 E-mail: hong.chen@pharma.novartis.com 2. https://www.the-jci.org/press/19246.pdf Obesity is associated with macrophage accumulation in adipose tissue Inflammation of fat cells linked to obesity-related insulin resistance Obesity is associated with a state of chronic, low-grade inflammation and alterations in fat mass are associated with changes in energy intake and storage, insulin sensitivity, and meta¡Úbolism. However the molecular pathways underlying a link between chronic inflammation and insulin resistance are unknown. In the December 15 issue of the Journal of Clinical Investigation two studies from independent research groups at Novartis Institutes for Biomedical Research, Massachusetts, and the Naomi Berrie Diabetes Center at Columbia University, New York, report that obese fatty tissue is characterized by the infiltration of macrophages and that these macrophages are an important source of inflammation in this tissue. Both studies utilized large-scale gene expression analysis and histological evidence to compare the differences in gene expression in multiple tissues of both lean mice and mice of varying degrees of obesity. They found that the largest class of genes significantly regulated in obesity consists of macrophage and inflammatory genes in fatty tissue. Anthony Ferrante, Jr., and colleagues provide evidence that macrophage infiltration of adipose tissue is characteristic of human obesity, by demonstrating that body mass index and average fat cell size were significant predictors of macrophage accumulation in adipose tissue. Hong Chen and colleagues demonstrated that the upregulation of many inflammation and macrophage–specific genes precedes a dramatic increase in circulating insulin levels and treatment with an insulin-sensitizing drug triggered downregulation of these genes. The data suggests that obesity-related insulin resistance is, at least in part, a chronic inflammatory disease initiated in adipose tissue. In an accompanying commentary, Kathryn Wellen and Gökhan Hotamisligil from the Harvard School of Public Health discuss the inflammation of obese adipose tissue. While it remains to be shown how the inflammatory response in fatty tissue causes insulin resistance, these two studies prompt consideration of new models of the molecular changes that occur in fatty tissue in obesity in which macrophages play a major role. ### TITLE: Chronic inflammation in fat plays a crucial role in the development of obesity-related insulin resistance AUTHOR CONTACT: Hong Chen Novartis Institutes for Biomedical Research Inc., Cambridge, Massachusetts, USA. Phone: 617-871-7344 Fax: 617-551-9540 E-mail: hong.chen@pharma.novartis.com View the PDF of this article at: https://www.the-jci.org/press/19451.pdf RELATED ARTICLE: TITLE: Obesity is associated with macrophage accumulation in adipose tissue AUTHOR CONTACT: Anthony W. Ferrante, Jr. The Naomi Berrie Diabetes Center, Columbia University College of Physicians and Surgeons, New York, New York, USA. Phone: 212-851-5322 Fax: 212-851-5331 E-mail: awf7@columbia.edu View the PDF of this article at: https://www.the-jci.org/press/19246.pdf
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