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GENE EXPRESSION PROFILING IN HUMAN DENTAL PULP CELLS TREATED WITH MINERAL TRIOXIDE AGGREGATE

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ÀÌ¿ìö ( Lee Woo-Cheol ) - ¼­¿ï´ëÇб³ Ä¡ÀÇÇдëÇпø Ä¡°úº¸Á¸Çб³½Ç
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¹è±¤½Ä ( Bae Kwang-Shik ) - ¼­¿ï´ëÇб³ Ä¡ÀÇÇдëÇпø Ä¡°úº¸Á¸Çб³½Ç

Abstract

ÀÌ ¿¬±¸¿¡¼­´Â mineral trioxide aggregate (MTA)¸¦ in vitro·Î Àΰ£Ä¡¼ö¼¼Æ÷¿¡ Àû¿ëÇÏ¿´À» ¶§ À¯ÀüÀÚµéÀÇ º¯È­¸¦ Á¶»çÇÏ¿´´Ù. ½ÇÇ豺Àº MTA¸¦ teflon tube (Á÷°æ 10 mm ±æÀÌ 2 mm)¿¡ ´ã¾Æ 4½Ã°£ °æÈ­½ÃŲ ÈÄHDPCs¿¡ Àû¿ëÇÏ¿´°í, ´ëÁ¶±ºÀº ºótube¸¸À» Àû¿ëÇÏ¿´´Ù. 6, 24, 72½Ã°£ ÈÄ total RNA¸¦ ÃßÃâÇÏ¿© microarray¸¦ ÀÌ¿ëÇÏ¿© ºÐ¼®ÇÏ¿©, 2¹è ÀÌ»ó ¶Ç´Â Àý¹Ý ÀÌÇÏÀÇ º¯È­¸¦ º¸ÀÌ´Â À¯ÀüÀÚ Áß ¼±ÅÃÀûÀ¸·Î ¿ªÀü»ç ÁßÇÕÈ¿¼Ò ¿¬¼â¹ÝÀÀ(reverse transcriptase polymerase chain reaction)À» »ç¿ëÇÏ¿© ¹ßÇöÀ» È®ÀÎÇÏ¿´´Ù. 24,546°³ÀÇ À¯ÀüÀÚ Áß¿¡¼­ 109°³ÀÇ À¯ÀüÀÚ°¡ 2¹è ÀÌ»ó up-regulationµÇ¾úÀ¸¸ç(¿¹. FOSB, THBS1, BHLHB2, EDN1,IL11, FN1, COL10A1, TUFT1) 69°³ÀÇ À¯ÀüÀÚ°¡ 50%ÀÌÇÏ·Î down-regulationµÇ¾ú´Ù(¿¹. SMAD6, DCN). MTA´Â bio-inertÇÑ Àç·á¶ó±â º¸´Ù´Â Ä¡¼ö¼¼Æ÷¿¡ ´Ù¾çÇÑ °æ·Î·Î ¿µÇâÀ» ÁÖ´Â Àç·á·Î »ç·áµÈ´Ù. ƯÈ÷ Ä¡¼ö¼¼Æ÷ÀÇ ºÐÈ­¿Í Áõ½Ä¿¡ °ü¿©ÇÏ´Â À¯ÀüÀÚÀÇ º¯È­¿¡ ¿µÇâÀ» ÁÖ¸ç ¼®È¸È­ °úÁ¤¿¡ °ü¿©ÇÏ´Â À¯ÀüÀÚÀÇ º¯È­¿¡ Á÷Á¢ÀûÀÎ ¿µÇâÀ» ÁÖ¸®¶ó »ç·áµÈ´Ù.

This study investigated the changes in gene expression when mineral trioxide aggregate (MTA) was applied in vitro to human dental pulp cells (HDPCs). MTA in a teflon tube (diameter 10 mm, height 2 mm) was applied to HDPCs. Empty tube-applied HDPCs were used as negative control. For microarray analysis, total RNA was extracted at 6, 24, and 72 hrs after MTA application. The results were confirmed selectively by performing reverse transcriptase polymerase chain reaction for genes that showed changes of more than two-fold or less than half. Of the 24,546 genes, 109 genes were up-regulated greater than twofold (e.g., FOSB, THBS1, BHLHB2, EDN1, IL11, FN1, COL10A1, and TUFT1) and 69 genes were down-regulated below 50% (e.g., SMAD6 and DCN). These results suggest that MTA, rather than being a bio-inert material, may have potential to affect the proliferation and differentiation of pulp cells in various ways.

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Ä¡¼öº¹Á¶; Ä¡¼ö¼¼Æ÷; ¼¼Æ÷ºÐÈ­; ¼¼Æ÷Áõ½Ä
Microarray; Mineral trioxide aggregate; Dental pulp capping; Human dental pulp cell; Differentiation; Proliferation

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