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À̹ø ¹ßÇ¥ ³í¹®Àº ¿ÃÇØ 2¿ù Immunity ¿¡ ÃâÆÇµÈ 'Primary germinal center-resident T follicular helper cells are a physiologically distinct subset of CXCR5hiPD-1hi T follicular helper cells'ÀÔ´Ï´Ù.
Follicular helper T cell (Tfh) Àº germinal center ¿¡¼ affinity maturation ¿¡ °ü¿©ÇÏ¿© germinal center (GC) B cell À» Á¶ÀýÇÔÀ¸·Î¼ antibody production ¿¡ ¸Å¿ì Áß¿äÇÏ´Ù°í ¾Ë·ÁÁ® ÀÖÀ¸¸ç, phenotype Àº ÀϹÝÀûÀ¸·Î CXCR5hiPD-1hi ·Î ¾Ë·ÁÁ® ÀÖ½À´Ï´Ù.
¶ÇÇÑ À§¿Í °°Àº CXCR5hiPD-1hi Tfh cell µéÀº flow cytometry ·Î ºÐ¼®ÇÏ¿´À» °æ¿ì 20% Á¤µµ¸¦ Â÷ÁöÇÑ´Ù°í ¾Ë·ÁÁ® Àմµ¥, ½ÇÁ¦ histology »ó¿¡¼´Â 10%Á¤µµ°¡ È®ÀÎµÈ´Ù°í ¾Ë·ÁÁ® ÀÖ½À´Ï´Ù. ÀÌ¿Í °°ÀÌ Tfh ´Â º¸Åë GC ³»ºÎ light zone ¿¡ ¸¹ÀÌ ºÐÆ÷ÇÏ°í ÀÖÁö¸¸ GC ¿ÜºÎ¿¡ Á¸ÀçÇÑ´Ù´Â °Íµµ Àß ¾Ë·ÁÁ® ÀÖ½À´Ï´Ù.
ÇÏÁö¸¸ ±âÁ¸¿¡ GC ¿ÜºÎ¿¡ Tfh°¡ Á¸ÀçÇÑ´Ù´Â °ÍÀº ¾Ë·ÁÁ® ÀÖ¾úÁö¸¸, ¾î¶°ÇÑ marker ·Î À̵éÀ» ±¸ºÐÇؾßÇÏ´ÂÁö, ±×·¸´Ù¸é ±× population °£¿¡ ¾î¶°ÇÑ Â÷ÀÌ°¡ ÀÖ´ÂÁö´Â ¾Ë·ÁÁø¹Ù°¡ ¾ø½À´Ï´Ù.
º» ¿¬±¸ÆÀÀº CD90 °ú S1pr2 °¡ resident / non-resident Tfh °¡ ±¸ºÐÇÒ ¼ö ÀÖ´Â marker ¶ó´Â °ÍÀ» È®ÀÎÁÖ¾úÀ¸¸ç, ÀÌ population ÀÌ ¼·Î ´Ù¸¥ development, transcriptional profile À» °¡Áö´Â distinct population À̶ó´Â °ÍÀ» º¸¿©ÁÖ¾ú½À´Ï´Ù.
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³í¹®¸µÅ© : https://www.sciencedirect.com/science/article/pii/S1074761321005513