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Enterococcus faecalis ÃßÃâ¹°ÀÌ ÀÓÆı¸ÀÇ IL-2, IL-4, $TGF-\beta1$ ºÐºñ¿¡ ¹ÌÄ¡´Â ¿µÇâ¿¡ °üÇÑ ¿¬±¸

Effects of Enterococcus faecalis sonicated extracts on IL-2, IL-4 and $TGF-\beta1$ production from human lymphocytes

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±èÇö½Ä/Kim HS ÀÌ¿ìö/Àå¼®¿ì/¼Õ¿øÁØ/ÀÌ»óŹ/±èöȣ/ÀÓ¼º»ï/Lee WC/Jang SW/Son WJ/Lee ST/Kim CH/Lim SS

Abstract

±Ù°üÄ¡·áÀÇ ½ÇÆпøÀÎ Áß Áß¿äÇÑ ¼¼±ÕÀ¸·Î ¾Ë·ÁÁø Enterococcus faecalis´Â ÃÖ±Ù¿¡ Á߿伺ÀÌ ´õÇØÁö¸ç ¸¹Àº ¿¬±¸µéÀÌ ÁøÇàÁßÀÌ´Ù. ¿©·¯°¡Áö ±âÀüµéÀÌ º¸°íµÇ°í ÀÖÀ¸³ª ¸é¿ª¹ÝÀÀ¿¡ °üÇÑ ¿¬±¸´Â °ÅÀÇ ¾Ë·ÁÁ® ÀÖÁö ¾ÊÀº »óÅÂÀÌ´Ù. º» ¿¬±¸¿¡¼­´Â Enterococcus faecalisÀÇ ÃÊÀ½ÆÄ ºÐ¼â ÃßÃâ¹°À» ¼ºÀÎÀÇ ¸»ÃÊÇ÷¾×À¸·ÎºÎÅÍ ¾òÀº ÀÓÆı¸¿¡ Àû¿ë½ÃÄѼ­ ¿©±â¼­ ºÐºñµÇ´Â interleukin-2, interleukin-4, transforming growth $factor-\beta1$ÀÇ ³óµµ¸¦ Enzyme linked immunosorbent assay (ELISA)·Î ÃøÁ¤ÇÏ¿© ºñ±³, Æò°¡ÇÏ´Â °ÍÀ» ¸ñÀûÀ¸·Î ÇÑ´Ù. E. faecalis¸¦ ÀûÀýÇÑ Á¶°Ç¿¡¼­ ¹è¾çÇÑ µÚ ÃÊÀ½ÆÄ ºÐ¼â¸¦ ÇÏ¿© ÃßÃâ¹°À» ¾ò¾î³Â´Ù. ÀÓÆı¸´Â °Ç°­ÇÑ ¼ºÀÎÀÇ ¸»ÃÊÇ÷¾×¿¡¼­ ÃßÃâÇÏ¿© ºÐ¸®ÇÏ¿´´Ù. ÀÓÆı¸¸¦ ÀûÀýÇÑ ³óµµÀÇ mitogen (Phytohemagglutinin: PHA)À¸·Î ÀڱؽÃŲ µÚ¿¡ ´Ù¾çÇÑ ³óµµÀÇ E. faecalis ÃÊÀ½ÆÄ ÃßÃâ¹°À» Àû¿ë½ÃÅ°°í 72½Ã°£ µ¿¾È ¹è¾çÇÏ¿´´Ù ELISA¸¦ ÀÌ¿ëÇÏ¿© IL-2, IL-4, $TGF-\beta1$ÀÇ ³óµµ¸¦ ÃøÁ¤ÇÏ¿´´Ù. ½ÇÇè°á°ú´Â Kruskal-Wallis test, Man-Whitney rank sum test (p < 0.05)¸¦ »ç¿ëÇÏ¿© Åë°èó¸® ÇÏ¿´´Ù. ½ÇÇè°á°ú PHA·Î ó¸®ÇÑ ±ºÀº ¾Æ¹«°Íµµ ó¸®ÇÏÁö ¾ÊÀº ±º¿¡ ºñÇؼ­ IL-2, IL-4ÀÇ ¼öÄ¡°¡ À¯ÀǼº ÀÖ°Ô ³ô¾Ò´Ù (p < 0.05). PHA·Î ó¸®ÇÑ ±ºÁß¿¡¼­ °í³óµµ¿Í Áß³óµµÀÇ sonic extract of E. faecalis (SEF)·Î ó¸®ÇÑ ±ºÀº ±×·¸Áö ¾ÊÀº ±º¿¡ ºñÇؼ­ IL-2 IL-4ÀÇ ³óµµ°¡ À¯ÀǼº ÀÖ°Ô ³·¾Ò´Ù (p < 0.05). PHA·Î ó¸®ÇÑ ±ºÁß¿¡¼­ Àú³óµµÀÇ SEF·Î ó¸®ÇÑ ±ºÀº ±×·¸Áö ¾ÊÀº ±º°ú ºñ±³ÇÏ¿© À¯ÀÇÇÒ ¸¸ÇÑ Â÷À̸¦ º¸ÀÌÁö ¾Ê¾Ò´Ù. $TGF-\beta1$ÀÇ ³óµµ´Â ¸ðµç ±º¿¡¼­ À¯ÀÇÇÒ ¸¸ÇÑ Â÷À̸¦ º¸ÀÌÁö ¾Ê¾Ò´Ù (p > 0.05). µû¶ó¼­, E. faecalisÀÇ ÃßÃâ¹°Àº ÀÓÆı¸ÀÇ IL-2, IL-4ÀÇ ºÐºñ´É·ÂÀ» ÀúÇϽÃŲ´Ù°í ÇÒ ¼ö ÀÖ´Ù.

In order to examine the immunoresponse of host cells to Enterococcus faecalis, this in vitro study monitored the production of Interleukin-2 (IL-2), Interleukin-4 (IL-4) and Transforming growth factor-$\beta1\;(TGF-\beta1)$ in human lymphocytes. Lymphocytes were activated with PHA in the presence or abscence of sonicated extracts of E. Faecalis (SEF) and further incubated for 72 hours. The level of each cytokine was measured by ELISA. Data were analyzed with Kruskal-Wallis test and Mann-Whitney U test (P < 0.05). PHA-activated group did exhibit higher level of IL-2 and IL-4 than untreated control group. The levels of expression of both cytokines were significantly decreased following the treatment of high (25 ${\mu}g/ml$) and medium concentration (12.5 ${\mu}g/ml$)) of SEF (P > 0.05) than those of PHA activated group. But low concentration (5 ${\mu}g/ml$)) of SEF showed th similar level of IL-2 and IL-4 production as those of PHA activated group. $TGF-\beta1$ was unaffected by SEF treatment. These results suggested that E. faecalis may suppress IL-2 and IL-4 production by lymphocytes and this could be one of possible factors why E. faecalis are found frequently in the teeth with failed endodontic treatment.

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