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Á¦°¡ À̹øÁÖ ¹ßÇ¥ÇÒ ³í¹®Àº 2021³â 10¿ù journal of crohn's and colitis (IF:9.071)¿¡ ÃâÆÇµÈ 'Overexpression of Vitamin D Receptor in Intestinal Epithelia Protects Against Colitis via Upregulating Tight Junction Protein Claudin 15'ÀÔ´Ï´Ù.

Tight junction proteinÁß ÇϳªÀÎ Claudin-2´Â VDR¿¡ ÀÇÇØ Á÷Á¢ÀûÀ¸·Î Á¶ÀýµÇ´Â °ÍÀ¸·Î ¾Ë·ÁÁ® ÀÖ¾úÀ¸¸ç, Claudin-15 ¶ÇÇÑ Claudin 2¿Í °°ÀÌ paracellular permeability¿¡ °ü¿©ÇÏ´Â °ÍÀ¸·Î ¾Ë·ÁÁ® ÀÖ½À´Ï´Ù.

Ulcerative colitis ȯÀÚ¿¡¼­ Claudin-15°¡ ÇÏÇâÁ¶ÀýµÊÀÌ È®ÀεǾúÀ¸³ª, ÇöÀç±îÁö colitis »óȲ¿¡¼­ Claudin-15ÀÇ Á¶Àý°ú °ü·ÃµÈ Á¤È®ÇÑ ¸ÞÄ«´ÏÁòÀº ¾Ë·ÁÁø ¹Ù°¡ ¾ø¾ú½À´Ï´Ù.

ÇØ´ç ¿¬±¸ÁøÀº Vit-D overexpression, treatment, knock-out ±×·ì¿¡¼­ DSS ¸ðµ¨À» ÀÌ¿ëÇÏ¿© Claudin-15¿Í VDRÀÇ ¿¬°ü¼ºÀ» È®ÀÎÇÏ¿´½À´Ï´Ù.

¶ÇÇÑ ChiP assay¸¦ ÅëÇØ VDRÀÌ Claudin-15ÀÇ promoter¿¡ Á÷Á¢ÀûÀ¸·Î °áÇÕÇÏ¿© Claudin-15ÀÇ ¹ßÇöÀ» Á¶ÀýÇÔÀ¸·Î½á colitis¸¦ ¸·´Â´Ù´Â °ÍÀ» ¹àÇô³Â½À´Ï´Ù.
 
ÇöÀç Á¦°¡ ÁøÇàÇÏ°í ÀÖ´Â IBD¿Í °ü·ÃµÈ ¿¬±¸¿¡¼­ À庮 ¼Õ»ó ¿ÏÈ­¿Í Vit-D¿ÍÀÇ ¿¬°ü¼ºÀ» °øºÎÇÏ´ø Áß Tight junction protein Áß ÇϳªÀÎ Claudin°ú °ü·ÃµÈ ³í¹®ÀÌ ÃÖ±Ù ÃâÆǵǾî À̸¦ Âü°í ¹× °øºÎÇغ¸°íÀÚ ¼±Á¤ÇÏ¿´½À´Ï´Ù.
 
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