salicylate regulates COX-2 expression through ERK and subsequent NF-RB activation in osteoblasts
äÇÑÁ¤, Kim Hyung Ryong,
¼Ò¼Ó »ó¼¼Á¤º¸
äÇÑÁ¤ ( Chae Han Jung )
Wonkwang University School of Dentistry Department of Dental Pharmacology and Wonkwang Dental Research Institute
( Kim Hyung Ryong )
Wonkwang University School of Dentistry Department of Dental Pharmacology and Wonkwang Dental Research Institute
KMID : 0860720020060000125
Abstract
Cyclooxygenase-2 (COX-2)´Â ¿°Áõ½Ã Ư¡ÀûÀ¸·Î À¯¹ßµÇ´Â ´Ü¹éÁú·Î salicylate·Î ¾ïÁ¦µÊÀº ÁÖÁöÀÇ »ç½ÇÀÌ´Ù. ÇÏÁö¸¸ arachidonic pathway ¿Ü ´Ù¸¥ ½ÅÈ£Àü´Þ ±âÀü¿¡ °üÇÑ ¿¬±¸´Â È°¹ßÈ÷ ¾ð±ÞµÇ¾î ÀÖÁö¾Ê´Ù. º» ¿¬±¸¿¡¼´Â °ñ Á¶Á÷ Áúȯµî ƯÁ¤ ÁúȯÀÇ ¸ðµ¨·Î MC3T3E1 Á¶°ñ¼¼Æ÷¿¡¼ cytokineµîÀÇ Ã³¸®½Ã À¯¹ßµÇ´Â COX-2¸¦ ¼³Á¤ÇÏ¿´´Ù. COX-2¹ßÇöÀ» mitogen-activated protein kinase (MAPKs)¿Í transcription factorÀÎ NF-¥êB ¿Í ¿¬°üÇÏ¿© Çؼ®ÇÔÀ¸·Î Á¶°ñ¼¼Æ÷¿¡¼ COX-2 ¹ßÇö±âÀüÀ» Á¦½ÃÇÏ¿´´Ù. MAPKsÁß ÇϳªÀÎ ERK¸¦ ¾ïÁ¦ÇÔÀ¸·Î TNF-¥á, IFN-¥ã µîÀ¸·Î ÀÎÇÑ COX-2 ¾ïÁ¦È¿°ú¸¦ ERKÀλêÈ, IKK ÀλêÈ ¹× IkB Æı«µîÀ¸·Î Á¦½ÃÇÏ¿´´Ù. ¶ÇÇÑ, catalase, N-acetyl-cysteine ȤÀº reduced glutathione, Áï antioxidantµîÀÇ COX-2 ¹ßÇö ¾ïÁ¦¸¦ °üÂûÇÏ¿´À¸¸ç, ÀÌ antioxidant¿ª½Ã ERK, IKK ¹× NF-¥êB ÀÇ È°¼ºÈ¸¦ ¾ïÁ¦ÇÏ¿´´Ù. ÇÏÁö¸¸ antioxidant´Â TNF-¥á/IFN-¥ã·Î ÀÎÇÑ reactive oxygen species (ROS) À¯¸®¸¦ ¾ïÁ¦ÇÏ¿´À¸³ª salicylate´Â ROSÀ¯¸®Á¶Àý°ú´Â °ü·ÃÀÌ ¾ø¾ú´Ù. ÀÌ ¿¬±¸·Î salicylate´Â ERK, IKK, I¥êB, NF-¥êB ¹× COX-2 ¹ßÇöÀÇ ¿¬°ü¼ºÀ» Á¦½ÃÇØÁÖ°í ÀÖ´Ù.
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Cox;Cyclooxygenase;ERK;Extracellularly requlated Kinase;PGE©ü;Prostaglandin E©ü
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