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Prevotella nigrescens lipopolysaccharide·Î ÀÚ±ØÇÑ Ä¡ÁÖÀÎ´ë ¼¶À¯¾Æ¼¼Æ÷¿¡¼­ ±âÁú±Ý¼Ó´Ü¹éºÐÇØÈ¿¼Ò¿Í ´Ü¹éºÐÇØÈ¿¼Ò¾ïÁ¦Á¦ÀÇ »ý¼º ¾ç»ó¿¡ ´ëÇÑ ¿¬±¸

MMP and TIMP production in periodontal ligament fibroblasts stimulated by Prevotella nigrescens lipopolysaccharide

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¾ç¿ø°æ, ÀÌ¿ìö, ³²µ¿¼®, ±è¹Ì¸®,
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¾ç¿ø°æ (  ) - ¼­¿ï´ëÇб³ Ä¡°ú´ëÇÐ Ä¡°úº¸Á¸Çб³½Ç
ÀÌ¿ìö (  ) - ¼­¿ï´ëÇб³ Ä¡°ú´ëÇÐ Ä¡°úº¸Á¸Çб³½Ç
³²µ¿¼® (  ) - ¼­¿ï´ëÇб³ Ä¡°ú´ëÇÐ Ä¡°úº¸Á¸Çб³½Ç
±è¹Ì¸® (  ) - ¼­¿ï¾Æ»êº´¿ø Ä¡°ú º¸Á¸°ú

Abstract

ÀÌ ¿¬±¸¿¡¼­´Â Prevotella nigrescens (P. nigrescens)ÀÇ lipopolysaccharide (LPS)·Î ÀÚ±ØÇÑ Ä¡ÁÖÀÎ´ë ¼¶À¯¾Æ¼¼Æ÷¿¡¼­ matrix metalloproteinase (MMP)¿Í tissue inhibitor of metalloproteinase (TIMP)ÀÇ »ý¼º ¾ç»ó°ú, LPS¸¦ ¼ö»êÈ­Ä®½·À¸·Î ó¸®ÇßÀ» ¶§ÀÇ ¿µÇâÀ» Æò°¡ÇÏ¿´´Ù. P. nigrescens¿¡¼­ ÃßÃâ, Á¤Á¦ÇÑ ¿©·¯ ³óµµÀÇ LPS¿Í ¼ö»êÈ­Ä®½·À¸·Î ó¸®ÇÑ LPS·Î Ä¡ÁÖÀÎ´ë ¼¶À¯¾Æ¼¼Æ÷¸¦ ÀÚ±ØÇÏ¿©, Immunoprecipitation¹ýÀ¸·Î MMP-1, -2, TIMP-1ÀÇ ´Ü¹éÁú »ý¼º ¾ç»óÀ», real-time polymerase chain reaction¹ýÀ¸·Î MMP-1ÀÇ mRNA ¹ßÇö ¾ç»óÀ» ºÐ¼®ÇÏ¿´´Ù. ÀÌ ¿¬±¸ÀÇ °á°ú´Â ¾Æ·¡¿Í °°´Ù. 1. MMP-1Àº ´Ü¹éÁú°ú À¯ÀüÀÚ ¼öÁØ ¸ðµÎ ÀÚ±Ø ½Ã°£°ú ºñ·ÊÇÏ¿© Áõ°¡ÇÏ¿© 48½Ã°£¿¡ ÃÖ´ë°ªÀ» º¸¿´´Ù. 2. MMP-2´Ü¹éÁú »ý¼ºÀº 1, 10 mg/ml¿¡¼­ ÀÚ±Ø ½Ã°£°ú ºñ·ÊÇÏ¿© Áõ°¡ÇÏ¿´´Ù. 3. TIMP-1 ´Ü¹éÁú »ý¼ºÀº 24½Ã°£±îÁö Áõ°¡ÇÏ´Ù°¡ 48½Ã°£¿¡ °¨¼ÒÇÏ¿´°í, 0.1°ú 1 ${\mg}g/ml$¿¡¼­ Áõ°¡ÇÏ¿´À¸³ª 10 ${\mu}g/ml$ ¿¡¼­ ¾ïÁ¦µÇ¾ú´Ù. 4. P. nigrescensÀÇ LPS¸¦ ¼ö»êÈ­Ä®½·À¸·Î 󸮽à MMP-1ÀÇ mRNA ¹ßÇöÀº ÇöÀúÇÏ°Ô °¨¼ÒÇÏ¿´´Ù.

The purpose of this study was to monitor the secretion of matrix metalloproteinase (MMP) and tissue inhibitor of metalloproteinase (TIMP) by human periodontal ligament (PDL) fibroblasts stimulated with Prevotella nigrescens lipopolysaccharide (LPS), and to examine the effect of calcium hydroxide treatment on P. nigrescens LPS. LPS was extracted and purified from anaerobically cultured P. nigrescens. PDL fibroblasts were stimulated by the LPS (0, 0.1, 1, 10 ${\mu}g/ml$) or LPS (10 ${\mu}g/ml$) pretreated with 12.5 mg/ml of $Ca(OH)_2$ for 3 days, for various periods of time (12, 24, 48 h). Immunoprecipitation were performed for protein level analysis of MMP-1 MMP-2 and TIMP-1. Total RNA was isolated and real-time quantitative polymerase chain reaction (PCR) was performed for quantification of MMP-1 mRNA. According to this study, the results were as follows: 1. The p°³duction of MMP-1 by stimulation with P. nigrescens LPS increased in time-dependent manner, and showed maximum value at 48 h in both protein and mRNA level. But there was no dose-dependent increas. 2. MMP-2 production time-dependently increased when stimulated with 1 and 10 ${\mu}g/ml$LPS, but there was no dose-dependent increase. 3. TIMP-1 p°³duction increased to 24 h, but decreased at 48 h. It increased when stimulated with 0.1 and 1${\mu}g/ml$, but suppressed at 10 ${\mu}g/ml$ .4. P. nigrescens LPS pretreated with $Ca(OH)_2$ markedly downregulated MMP-1 gene expression.

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