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Á¦°¡ À̹ø¿¡ ¼±Á¤ÇÑ ³í¹®Àº 2023³â Cell reports ¿¡ ÃâÆǵÈ
'PSGL-1 attenuates early TCR signaling to suppress CD8+T cell progenitor differentiation and elicit terminal CD8+T cell exhaustion'ÀÔ´Ï´Ù. 
 
À§ ³í¹®Àº exhaustion checkpoint regulator¶ó°í ¾Ë·ÁÁø PSGL-1(P-selectin glycoprotein-1)ÀÇ ÀÛ¿ë±âÀü¿¡ ´ëÇÏ¿© ¿¬±¸ÇÑ ³í¹®ÀÔ´Ï´Ù

¿¬±¸ÁøÀº effector »óÅ¿͠exhaustion »óÅ ¸ðµÎ¿¡¼­  PSGL-1ÀÌ KOµÇ¾úÀ» ½Ã low affinity TCR signal¿¡ ¹Î°¨Çϸç, in vivo »óÀ¸·Î exhaustion »óŸ¦ À¯µµÇϴ tumorȯ°æ¿¡ Àû¿ëÇßÀ» ½Ã¿¡µµ exhaustion state·ÎÀÇ ºÐÈ­¸¦ ¸·À» ¼ö ÀÖÀ½À» TCF-1°úTOXÀÇ ¹ßÇö Á¤µµ¸¦ ÅëÇÏ¿© È®ÀÎÇÏ¿´½À´Ï´Ù 

ÀÌ·¯ÇÑ °á°ú°¡ °¡´ÉÇÏ°Ô ÇÔÀº, PSGL-1ÀÌ TCR complex °áÂûÇϴµ¥ Á÷Á¢ÀûÀ¸·Î ¿ªÇÒ ÇÔÀ» È®ÀÎÇÏ¿´°í,
´õºÒ¾î ZAP70 inhibitorÀΠSTS-1ÀÇ ¹ßÇöÀ» ¸·À½À¸·Î½á TCR signaling¿¡ ¹Î°¨ÇÒ ¼ö ÀÖÀ½À» ¼³¸íÇÏ¿´½À´Ï´Ù.

´õºÒ¾î, À̸¦ ÈÞ¸Õ¿¡ Àû¿ëÇÏ¿© ¾à¸®ÇÐÀûÀ¸·Î PSGL-1À» Â÷´ÜÇÏ¿´À» ½Ã exhaustion state·ÎÀÇ °í°¥À» ¾ïÁ¦ÇÏ¿© tumor growth¸¦ Á¦¾îÇÏ´Â °ÍÀ¸·Î º¸¾Æ, ICB¿¡ ³»¼ºÀÌ Àִ tumor¸ðµ¨¿¡¼­ immuno-therapeutic targetÀÌ µÉ °¡´É¼ºÀ» ½Ã»çÇÏ¸ç ¸¶¹«¸® ÇÏ¿´½À´Ï´Ù. 

ÇØ´ç ³í¹®À» ¼±Á¤ÇÏ°Ô µÈ ÀÌÀ¯´Â Àúµµ tumor¿¡¼­ exhaustion state¸¦ ÃøÁ¤ÇÏ´Â ¹ý°ú, TCR signaling ºÎºÐ¿¡¼­ ¿¬±¸¸¦ Ç®¾î³ª°¡´Â ºÎºÐ¿¡ ´ëÇؼ­ °øºÎÇغ¸°íÀÚ ¼±Á¤ÇÏ¿´½À´Ï´Ù.
 
¿­½ÉÈ÷ ÁغñÇÏ¿© Åä¿äÀÏ¿¡ ºË°Ú½À´Ï´Ù. 

³í¹® ¸µÅ© : https://www.sciencedirect.com/science/article/pii/S2211124723004473?via%3Dihub
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¾È³çÇϼ¼¿ä ±â¼±ÀÔ´Ï´Ù. Á¦°¡ À̹øÁÖ °Ç°­»óÀÇ ÀÌÀ¯·Î Á¤½ÅÀÌ ¾ø¾î¼­ ¹ßÇ¥ Áغñ°¡ ´Ê¾îÁ® ³í¹®À» ´Ê°Ô º¸³»µå¸³´Ï´Ù. ³í¹®À» ¹Ì¸® º¸³»µå¸®Áö ¸øÇؼ­ Á˼ÛÇÕ´Ï´Ù. Á¦°¡ À̹ø¿¡ ¹ßÇ¥ÇÒ ³í¹®Àº Cell host & microbe¿¡ 2024¿¡ ¹ßÇ¥µÈ 'Anaerobic respiration of host-derived methionine sulfoxide protects in..