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2023-10-06
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À̹ø ¹ßÇ¥ ³í¹®Àº 22³â 5¿ù Cell Reports ¿¡ ÃâÆǵÈ
'Germinal center expansion but not plasmablast differentiation is proportional to peptide-MHCII density via CD40-CD40L signaling strength' ÀÔ´Ï´Ù.

GC B cell °ú Tfh ÀÇ interaction Àº humoral immune responses ¿¡ À־ °¡Àå Áß¿äÇÏ´Ù°í ¾Ë·ÁÁ® ÀÖ½À´Ï´Ù. GC B cell °ú  Tfh ÀÇ cognate ÇÑ peptide-MHCII-TCR signal À» ÅëÇØ GC B cell ÀÇ cell fate °¡ Á¶ÀýµÈ´Ù°í ¾Ë·ÁÁ® ÀÖÁö¸¸ ¾ÆÁ÷ Á¤È®ÇÑ ±âÀüÀº ¾Ë·ÁÁø ¹Ù°¡ ¾ø½À´Ï´Ù.

º» ¿¬±¸¿¡¼­´Â aDEC205-OVA system À» È°¿ëÇÏ¿© B cell ÀÌ uptake ÇÑ antigen À» follow ÇÏ¿© T cell °úÀÇ interaction ±îÁö È®ÀÎÇÒ ¼ö ÀÖ´Â ½Ã½ºÅÛÀ» ±¸ÃàÇÏ¿´À¸¸ç,
GC B cell ÀÌ cognate  ÇÑ Tfh ¿¡ ÁÖ´Â MHCII signal ÀÌ Áõ°¡ÇÔ µû¶ó GC B cell ÀÇ proliferation ¶ÇÇÑ Áõ°¡Çϸç, ÀÌ interaction ÀÇ key ´Â CD40 strength ÀÓÀ» ¹àÇû½À´Ï´Ù.
¶ÇÇÑ ÀÌ·¯ÇÑ signal ÀÌ plasmablast  differentiation ±îÁö´Â consistent ÇÏ°Ô ¿µÇâÀ» ÁÖÁö ¾Ê´Â °ÍÀ» È®ÀÎÇÔÀ¸·Î¼­  GC B cell ¿¡¼­ peptide-MHCII density ÀÇ intrinsic role À» ¹àÈù ³í¹®ÀÔ´Ï´Ù.

¿­½ÉÈ÷ ÁغñÇÏ¿© Åä¿äÀÏ¿¡ ºË°Ú½À´Ï´Ù.

³í¹®¸µÅ© : https://www.cell.com/cell-reports/fulltext/S2211-1247(22)00527-7
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