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¾È³çÇϼ¼¿ä, À̹øÁÖ ¹ßÇ¥ÀÚ ¹Î¼ºÀÔ´Ï´Ù.

 

Á¦°¡ À̹ø¿¡ ¹ßÇ¥ÇÒ ³í¹®Àº 2019³â Cell Reports¿¡ ÃâÆǵÈ, ‘CD89 Is a Potent Innate Receptor for Bacteria and Mediates Host Protection from Sepsis’ÀÔ´Ï´Ù.
 

±âÁ¸¿¡ adaptive immune response¿¡¼­ IgA receptor·Î½áÀÇ CD89´Â bacterial infection¿¡¼­ host defense¿¡ Áß¿äÇÏ´Ù´Â °ÍÀº Àß ¾Ë·ÁÁ® ÀÖ½À´Ï´Ù.

ÇÏÁö¸¸ ÀÌ ¿¬±¸¿¡¼­´Â IgA receptorÀÎ CD89°¡ bacteria¿Í directÇÏ°Ô interaction ÇÒ ¼ö ÀÖÀ¸¸ç, ÀÌ´Â FcRg¿¡ ÀÇÇÑ ITAM signal°ú °ü·ÃÀÌ ÀÖÀ½À» ¹àÇô ³»¾ú½À´Ï´Ù.

CD89¿¡ ÀÇÇÑ ITAM signalÀº pro-inflammatory cytokine¿¡ ÀÇÇÑ sepsis¿¡ ´ëÇØ host¸¦ º¸È£Çϸç phagocytosisÀÇ ´É·ÂÀ» °­È­ÇÔÀ¸·Î½á bacterial infection¿¡ ´ëÇÑ protective effect¸¦ °¡ÁüÀ» È®ÀÎÇÏ¿´½À´Ï´Ù.

À̸¦ in vitro¿Í in vivo ½ÇÇè°ú ÇÔ²² bacterial infection, CLP modelÀ» ÅëÇØ È®ÀÎÇÏ¿´À¸¸ç, CD89 dependentÇÑÁö È®ÀÎÇϱâ À§ÇØ ´Ù¾çÇÑ Tg mouse¸¦ »ç¿ëÇÏ¿´½À´Ï´Ù.

°á°úÀûÀ¸·Î Innate immunity¿¡¼­ CD89¿Í bacteriaÀÇ interactionÀº ¼÷ÁÖ ¹æ¾î ´É·Â¿¡ Áß¿äÇÔÀ» ¹àÇô³»¾ú½À´Ï´Ù.

º» ³í¹®À» ¼±Á¤ÇÑ ÀÌÀ¯´Â ÇöÀç Àú´Â bacteria¿¡ ´ëÇØ ¿¬±¸¸¦ ÁøÇàÇÏ°í ÀÖÀ¸³ª ¸é¿ªÇÐÀûÀ¸·Î Ç®¾î°¡¾ß ÇÒ ºÎºÐÀÌ ºÐ¸íÈ÷ Á¸ÀçÇϱ⿡ ÀÌ·¯ÇÑ ºÎºÐ¿¡ À־ ¾ÕÀ¸·Î ³ª¾Æ°¡¾ß ÇÒ ¹æÇâ¿¡ ´ëÇÑ ÇϳªÀÇ ´Ü¼­·Î½á º» ³í¹®À» °øºÎÇÏ°í ÀÖ½À´Ï´Ù

 

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³í¹®¸µÅ©: https://www.sciencedirect.com/science/article/pii/S2211124719303924

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