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Streptococcus mutansÀÇ gtfB ¹× gtfC À¯ÀüÀÚ ¹ßÇö¿¡ ´ëÇÑ ´çÀÇ ¿µÇâ

THE EFFECTS OF SUGARS ON THE EXPRESSION OF GTFB AND GTFC MRNA

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Á¤ÇýÁø, ±è½Å, Á¤Áø,
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Á¤ÇýÁø ( Chung Hye-Jin ) - ºÎ»ê´ëÇб³ Ä¡°ú´ëÇÐ ¹Ì»ý¹°Çб³½Ç
±è½Å ( Kim Shin ) - ºÎ»ê´ëÇб³ Ä¡°ú´ëÇÐ ¼Ò¾ÆÄ¡°úÇб³½Ç
Á¤Áø ( Chung Jin ) - ºÎ»ê´ëÇб³ Ä¡°ú´ëÇÐ ¹Ì»ý¹°Çб³½Ç

Abstract

Streptococcus mutans IngbrittÀÇ ºñ¼ö¿ë¼º ±Û·çÄ­À» ÇÕ¼ºÇÏ´Â È¿¼ÒÀÎ glucosyltransferase B ¹× CÀÇ mRNA ¹ßÇö¿¡ ´ëÇÑ °¢ ´çÀÇ ¿µÇâÀ» fluorescent in situ hybridization(FISH) ¹æ¹ýÀ¸·Î °üÂûÇÏ¿© ´ÙÀ½ÀÇ °á°ú¸¦ ¾ò¾ú´Ù.
1. 1% ¼³ÅÁÀÌ ÇÔÀ¯µÈ BHI ¹èÁö¿¡¼­ S. mutans Ingbritt¸¦ Á¢Á¾ÇÏ¿© ¹è¾çÇÒ ¶§ ¹è¾ç 9½Ã°£ ° gtfB ¹× gtfCÀ¯ÀüÀÚÀÇ mRNA°¡ ¹ßÇöÀÌ ±Þ°ÝÈ÷ Áõ°¡ÇÏ¿´´Ù.
2 BHI ¾×ü¹èÁö¿¡ ¼³ÅÁÀ» ÷°¡ÇÑ °æ¿ì gtfB¹× gtfCÀ¯ÀüÀÚÀÇ mRNA°¡ ¹ßÇöµÇ¾úÀ¸¸ç, 10% ¼³ÅÁÀ» ÷°¡ÇÑ °æ¿ì 1%¿Í 5%º¸´Ù gtfB ¹× gtfC À¯ÀüÀÚÀÇ ¹ßÇöÀÌ °¨¼ÒµÇ¾ú´Ù.
3. 1% ¼³ÅÁÀÌ Ã·°¡µÈ BHI ¾×ü ¹èÁö¿¡ ´çÀ» ÷°¡ÇÑ °æ¿ì Æ÷µµ´çÀº 10% ÷°¡ÇÏ¿´À» ¶§ gtfB ¹× gtfC À¯ÀüÀÚÀÇ mRNA ¹ßÇöÀÌ °¨¼ÒÇÏ¿´°í, °ú´çÀÇ °æ¿ì 1% ÷°¡ÇÑ °æ¿ì °¨¼ÒÇÏ¿© 5% ¿Í 10%¿¡¼­´Â gtfB¹× gtfC À¯ÀüÀÚ°¡ °ÅÀÇ ¹ßÇöµÇÁö ¾Ê¾Ò´Ù.
4. ÀÚÀϸ®ÅçÀÇ °æ¿ì 1%ºÎÅÍ gtfB¹× gtfCÀ¯ÀüÀÚ mRNA ¹ßÇöÀÌ ´ëÁ¶±ºº¸´Ù °¨¼ÒÇÏ¿´°í, 5%¿Í 10%¿¡¼­´Â µÎ À¯ÀüÀÚ ¸ðµÎ ¹ßÇöÀÌ ÇöÀúÇÏ°Ô °¨¼ÒÇÏ¿´´Ù.
5. À¯´çÀÇ °æ¿ì µÎ À¯ÀüÀÚÀÇ ¹ßÇö¿¡ °ÅÀÇ ¿µÇâÀ» ¹ÌÄ¡Áö ¾Ê´Â °ÍÀ¸·Î °üÂûµÇ¾ú°í, ¼ÖºñÅçÀÇ °æ¿ì °¢ ³óµµ¿¡¼­ µÎ À¯ÀüÀÚÀÇ ¹ßÇöÀÌ ´ëÁ¶±ºº¸´Ù °¨¼ÒÇÏ¿´´Ù.
°á·ÐÀûÀ¸·Î ºñ¼ö¿ë¼º ±Û·çÄ­ ÇÕ¼ºÇÏ´Â gtfB¹× gtfC À¯ÀüÀÚÀÇ mRNA ¹ßÇöÀÌ Æ÷µµ´ç, °ú´ç ÀÚÀϸ®Åç ÷°¡¿¡ ÀÇÇØ °¨¼ÒÇÔÀ» ¾Ë ¼ö ÀÖ¾ú´Ù.

Insoluble glucan is the important component of oral biofilm, which is synthesized from sucrose through the action of glucosyltransferase (GTF) B and GTF C encoded by the gtfB and gtfC genes, respectively of Streptococcus mutans. In present study, the effects of various sugars on the mRNA expression of gtfB and gtfC of S. mutans Ingbritt were examined by fluorescent in situ hybridization (FISH). The mRNA of gtfB and gtfC was expressed normally in the BHI broth containing 1% and 5% sucrose. The mRNA expression was decreased by the addition of 10% of glucose, and 1%, 5% and 10% of fructose. Lactose had no great effect on the expression of gtfB and gtfC. 5% and 10% of xylitol greatly reduced the mRNA expression of gtfB and gtfC. Sorbitol slightly decreased the mRNA expression of gtfB and gtfC when compared to the control. In summary, mRNA expression of gtfB and gtfC was decreased by the addition of glucose, fructose, and xylitol.

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Streptococcus mutans;Glucosyltransferase;Fluorescent in situ hybridization;Xylitol;Sorbitol

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