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À̹ø ¹ßÇ¥ ³í¹®Àº 2023³â 4¿ù Cell Reports ¿¡ ÃâÆÇµÈ 'MAIT cells activate dendritic cells to promote Tfh cell differentiation and induce humoral immunity'ÀÔ´Ï´Ù.
Mucosal-associated invariant T (MAIT) cells Àº Á¡¸· Á¶Á÷°ú lympoid organ ¿¡ Á¸ÀçÇÏ´Â T ¼¼Æ÷ÀÇ ÇÑ Á¾·ùÀÔ´Ï´Ù. ÀϹÝÀûÀÎ T cell °ú ´Ù¸£°Ô ´Ü¹éÁúÀÌ ¾Æ´Ñ vitamin B2 riboflavin ¸¦ agonist ¸¦ ÀνÄÇÕ´Ï´Ù. TCR »Ó¸¸ ¾Æ´Ï¶ó ¿©·¯ cytokine ¿¡ ÀÇÇؼµµ activation µÉ ¼ö Àֱ⠶§¹®¿¡ »õ·Î¿î ¹é½Å Àü·«ÀÇ Å¸±êÀ¸·Î ÁÖ¸ñ¹Þ°íÀÖ½À´Ï´Ù. ¶ÇÇÑ MAIT cell ÀÇ TCR Àº MHC I-related molecule 1 (MR1) ¿¡ ·ÎµùµÈ antigen ¸¸À» ÀνÄÇÏ°í, MR1 Àº °ÅÀÇ ¸ðµç Æ÷À¯·ù¿¡¼ µ¿ÀÏÇÏ´Ù°í ¾Ë·ÁÁ® ÀÖ½À´Ï´Ù.
MAIT cell ÀÇ agonist ´Â vitamin B ÇÕ¼º°úÁ¤¹°ÁúÀÎ 5-amino-6-D-
ribitylaminouracil (5-A-RU) ¿Í glycolysis ÀÇ byproducts ÀÎ methylglyoxal °áÇÕüÀÎ 5-A-RU/MG ·Î ¾Ë·ÁÁ® ÀÖ½À´Ï´Ù.
º» ¿¬±¸¿¡¼´Â MAIT cell ÀÇ agonist ¸¦ intranasal route ÀÇ adjuvant ·Î È°¿ëÇÏ¿´À» ¶§, antigen speicifc humoral immune responses (GC B cell, IgG, IgA, Tfh) ÀÌ ¸ðµÎ Áõ°¡ÇÏ´Â °ÍÀ» È®ÀÎÇÏ¿´°í, ÀÌ´Â DC ÀÇ activation À» ÅëÇØ ÀϾٴ °ÍÀ» º¸¿©ÁÖ¾ú½À´Ï´Ù.
±× ±âÀüÀ¸·Î MAIT cell ¿Í DC ÀÇ interaction ¿¡ ÀÖ¾î¼ MAIT cell ÀÇ CD40L signal ÀÌ DC ¸¦ activation ÇÑ´Ù´Â °ÍÀ» ¹àÇû½À´Ï´Ù.
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https://www.cell.com/cell-reports/fulltext/S2211-1247(23)00321-2?_returnURL=https%3A%2F%2Flinkinghub.elsevier.com%2Fretrieve%2Fpii%2FS2211124723003212%3Fshowall%3Dtrue