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KMID : 0613820050150040641
Journal of Life Science
2005 Volume.15 No. 4 p.641 ~ p.646
Effect of Growth Conditions in the Attachment of Salmonella typhimurium to the Host CellsSalmonella typhimurium TMLÀÌ Int-407 ¼÷ÁÖ¼¼Æ÷¿¡ ºÎÂøÇÏ´Â Á¤µµ´Â S. typhimuriumÀÌ ³·Àº ³óµµÀÇ Ã¶ÀÌ ÇÔÀ¯µÈ ¹èÁö¿¡¼­ ¹è¾çµÇ¾úÀ» ¶§º¸´Ù LB ¾×ü¹èÁö ¶Ç´Â ³ôÀº ³óµµÀÇ Ã¶ÀÌ ÇÔÀ¯µÈ ¹èÁö¿¡¼­ »ýÀ°ÇÑ °Í¿¡¼­ ¾à 10¹è Á¤µµÀÇ ³ôÀº ¼öÁØÀ¸·Î °üÂûµÇ¾ú´Ù. °í³óµµÀÇ Ã¶ÀÌ Æ÷ÇÔµÈ ¹è¾çÁ¶°ÇÀÌ »ì¸ð³Ú¶ó°¡ ¼÷ÁÖ¼¼Æ÷¿¡ ºÎÂø½ÃÅ°´Â Á¤µµ¸¦ Çâ»ó½ÃÅ°´Âµ¥ ¹ÝÇØ, Ä®½·, ÄÚ¹ßÆ®, ±¸¸®, Àλê, ¸¶±×³×½· ±×¸®°í ¸Á°£°ú °°Àº ´Ù¸¥ ¾çÀÌ¿ÂÀº ±×·¸Áö ¾Ê´Ù. ÀÌ°ÍÀº ¾Æ¸¶µµ öÀÌ Salmonella°¡ ºÎÂø¿¡ ÇÊ¿äÇÑ ¿ä¼ÒµéÀÇ ¹ßÇöÀ» È°¼ºÈ­ÇÏ´Â ¿ªÇÒÀ» ÇÏ´Â °ÍÀ¸·Î ÃßÁ¤µÈ´Ù. ö ³óµµ¿¡ µû¸¥ ºÎÂøÁ¤µµÀÇ Â÷À̵éÀº type 1 fimbriae, mannose resistant hemagglutinin°ú flagellum µîÀ» »ý¼ºÇÏÁö ¾Ê´Â ´Ù¾çÇÑ S. typhimurium µ¹¿¬º¯ÀÌÁֵ鿡¼­µµ °üÂûµÇ´Â °ÍÀ¸·Î ¹Ì·ç¾îº¸¾Æ ÀÌµé ±¸Á¶Ã¼µé°ú »ó°üÀÌ ¾ø´Â ¹àÇôÁöÁö ¾ÊÀº ¾î¶² ÀÎÀÚ°¡ ºÎÂø¼º Áõ°¡¿¡ °ü¿©ÇÏ´Â °ÍÀ¸·Î »ç·áµÈ´Ù. fur À¯ÀüÀÚ°¡ ºÒÈ°¼ºÈ­µÈ S. typhimurium µ¹¿¬º¯ÀÌÁÖÀÇ ºÎÂø¼ºÀÌ ¾ß»ýÇü Salmonella¿Í À¯»çÇÑ ¹æ½ÄÀ¸·Î ö¿¡ ÀÇÇØ Á¶ÀýµÇ¾ú´Âµ¥, À̴ ö ³óµµ¿¡ µû¸¥ ºÎÂø¼ºÀÇ º¯È­¿¡ °ü¿©ÇÏ´Â ÀáÀçÀûÀÎÀÚÀÇ ¹ßÇöÀÌ Fur ´Ü¹éÁú°ú µ¶¸³ÀûÀ¸·Î ÀÌ·ç¾îÁø´Ù´Â °ÍÀ» ³ªÅ¸³½´Ù.
Kim Young-Hee

Kim Sam-Woong
Kang Ho-Young
Abstract
An approximately 10-fold higher level of adherence of Salmonella typhimurium strain TML to Int-407 cells was observed with organisms grown in Luria broth or in high-iron containing medium than those grown in lowiron containing medium. Iron specifically enhanced adherence, while other cations such as calcium, cobalt, copper, potassium, magnesium and manganese did not. It was suggested that iron did not act as a passive ligand - probably it stimulated production of bacterial factors necessary for adherence. A similar pattern of iron modulation of adhesiveness was also seen in Salmonella mutants with single or different combinations of multiple mutations in genes encoding the mannose sensitive hemagglutinin (type 1 fimbriae), mannose resistant hemagglutinin and flagellum. The adhesiveness of an isogenic fur mutant was modulated by iron in a manner similar to the wild-type strain, suggesting that iron modulation of adherence is independent of the fur gene product.
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