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ENTEROCOCCUS FAECALIS ÃßÃâ¹°ÀÌ ´ÙÇüÇÙ ¹éÇ÷±¸ÀÇ METALLOPROTEINASE-8 ºÐºñ¿¡ ¹ÌÄ¡´Â ¿µÇâ¿¡ °üÇÑ ¿¬±¸

Effect of Sonicated Extracts of Enterococcus faecalis on the Production of Matrix Metalloproteinase-8 by Human Polymorphonuclear Neutrophils

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Abstract

Enterococcus faecalisÀÇ ÃßÃâ¹°À» ¼ºÀÎÀÇ ¸»ÃÊÇ÷¾×À¸·ÎºÎÅÍ ¾òÀº Àΰ£ÀÇ ¹éÇ÷±¸¸¦ ÀÌ¿ëÇØ Matrix Metalloproteinase-8 (MMP-8)ÀÇ »ý»ê¿¡ ¹ÌÄ¡´Â ¿µÇâ¿¡ ´ëÇؼ­ ¾Ë¾Æº¸¾Ò´Ù. Enterococcus faecalis¸¦ ¹è¾çÇÑ µÚ ÃÊÀ½ÆÄ ºÐ¼â¸¦ ÇÏ¿© ÃßÃâ¹°À» ¾ò¾î³Â´Ù. ÀÌÁß ÀϺδ ÀûÁ¤ÇÑ ³óµµÀÇ Ca(OH)_2$¸¦ ó¸®ÇÏ¿´´Ù. ÀÌÈÄ E. faecalis ÃßÃâ¹°±º, E. faecalis ÃßÃâ¹°¿¡ $Ca(OH)_2$ ¸¦ ó¸®ÇÑ ±ºÀ¸·Î ºÐ¸®ÇÏ¿© ´ÙÇüÇÙ¹éÇ÷±¸¸¦ ÀÚ±ØÇÏ¿© MMP-8ÀÇ »ý»ê·®À» ÃøÁ¤ÇÏ¿´´Ù. MMP-8´Â ó¸®ÇÏÁö ¾ÊÀº PMN group¿¡¼­µµ ³ªÅ¸³µ°í, PMNÀ» E. coli LPS·Î ÀڱؽÃŲ °æ¿ì Áõ°¡ÇÏ¿´´Ù (p < 0.05) SEF group µé¿¡¼­´Â MMP-8ÀÇ »ý¼º·®ÀÌ SEF ÀÇ ³óµµ°¡ Áõ°¡ÇÔ¿¡ µû¶ó °¨¼ÒÇÏ¿´´Ù (p < 0.05). µû¶ó¼­ Enterococcus faecalis´Â PMNÀÇ MMP-8 »ý»ê ¾ïÁ¦ È¿°ú¸¦ °¡Áø´Ù°í º¼ ¼ö ÀÖ´Ù. $Ca(OH)_2$·Î ó¸®ÇÑ SEF ±ºÀÇ °æ¿ì °¢±â ´Ù¸¥ SEF ³óµµ¿¡¼­µµ ¸ðµÎ MMP-8 »ý¼º·®ÀÌ ¾Æ¹« 󸮵µ ÇÏÁö ¾ÊÀº PMN ±ºº¸´Ù ¸¹¾Ò´Ù (p < 0.05) . ÇÏÁö¸¸ °¢ ±ºµé »çÀÌ¿¡ Åë°èÀû Â÷ÀÌ´Â ¾ø¾ú´Ù (p > 0.05).

This in vitro study monitored MMP-8 production on PMN by stimulated with the following three groups; Sonicated extracts of E. faecalis (SEF), SEF treated with $Ca(OH)_2$ (12.5mg/ml) for 7 days, and lipopolysac-charides(LPS) of E. coli. The level of MMP-8 in each group was immediately measured by ELISA. The data were analyzed with Kruskal-Wallis test and Mann-Whitney U test. In the SEF group, the level of production of MMP-8 was higher than the negative control group in low concentration ($0.05{\mu}g/ml$) of SEF (p < 0.05). but it decreased with an increase in the concentration of SEF (p < 0.05). In the case of SEF treated with $Ca(OH)_2$, all of the MMP levels were higher than negative control group (p < 0.05), but no statistical difference was found among the different SEF concentrations (p > 0.05). All of the levels in E. coli LPS were incresed with increasing concentrations (p < 0.05). According to this study we could summarized as follows: 1. MMP-8 was expressed at low level in untreated PMN group the levels of MMP-8 were upregulated in PMN stimulated by E. coli LPS groups. 2. In the SEF groups, the level of production of MMP-8 decreased with an increase in concentration of SEF (p < 0.05). So E. faecalis may have suppressive effect on the production of MMP-8 by PMN. 3. In the case of SEF treated with $Ca(OH)_2$, all of the MMP levels at different SEF concentrations were higher than untreated PMN group (p < 0.05), but no statistical difference was found among the different SEF concentrations (p > 0.05).

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