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rhTGF-¥â2/PLGA º¹ÇÕü¸¦ electrospray¹ýÀ¸·Î ÄÚÆÃÇÑ Å¸ÀÌŸ´½ ÀÓÇöõÆ® °ñ À¯ÂøÀÇ microCT °èÃø: a preliminary rabbit study

Osseointegration of the titanium implant coated with rhTGF-¥â2/PLGA particles by electrospray: a preliminary microCT analyzing rabbit study

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À̿켺, ±è¼º±Õ, Ç㼺ÁÖ, °ûÀ翵, ÀÌÁÖÈñ, ¹ÚÁö¸¸, ¹ÚÀ±°æ,
¼Ò¼Ó »ó¼¼Á¤º¸
À̿켺 ( Lee Woo-Sung ) - ¼­¿ï´ëÇб³ Ä¡ÀÇÇдëÇпø Ä¡°úº¸Ã¶Çб³½Ç
±è¼º±Õ ( Kim Seong-Kyun ) - ¼­¿ï´ëÇб³ Ä¡ÀÇÇдëÇпø Ä¡°úº¸Ã¶Çб³½Ç
Ç㼺ÁÖ ( Heo Seong-Joo ) - ¼­¿ï´ëÇб³ Ä¡ÀÇÇдëÇпø Ä¡°úº¸Ã¶Çб³½Ç
°ûÀ翵 ( Koak Jai-Young ) - ¼­¿ï´ëÇб³ Ä¡ÀÇÇдëÇпø Ä¡°úº¸Ã¶Çб³½Ç
ÀÌÁÖÈñ ( Lee Joo-Hee ) - ¿ï»ê´ëÇб³ ¼­¿ï¾Æ»êº´¿ø Ä¡°úº¸Ã¶°ú
¹ÚÁö¸¸ ( Park Ji-Man ) - ÀÌÈ­¿©ÀÚ´ëÇб³ ¸ñµ¿º´¿ø Ä¡°úº¸Ã¶°ú
¹ÚÀ±°æ ( Park Yoon-Kyung ) - ¼­¿ï´ëÇб³ Ä¡ÀÇÇдëÇпø Ä¡Çבּ¸¼Ò

Abstract

¸ñÀû: º» ¼±Çà ¿¬±¸´Â recombinant human transforming growth factor-¥â2 (rhTGF-¥â2)/ poly lactic-co-glycolic acid (PLGA) º¹ÇÕü¸¦ ŸÀÌŸ´½ ÀÓÇöõÆ®¿¡ ó¸®ÇÏ¿´À» ¶§ °ñ À¯Âø¿¡ ¹ÌÄ¡´Â ¿µÇâÀ» ¾Ë¾Æº¸±â À§ÇØ ½ÃÇàµÈ °ÍÀ¸·Î Åä³¢ ¸ðµ¨À» »ç¿ëÇÏ¿´´Ù.

Àç·á ¹× ¹æ¹ý: 8°³ÀÇ ÀÓÇöõÆ®¸¦ 300V¿¡¼­ 3ºÐ µ¿¾È ¾ç±Ø »êÈ­ÇÏ¿´´Ù. ±× Áß 4°³´Â electrospray¹ýÀ¸·Î rhTGF-¥â2/PLGA¸¦ ÄÚÆÃÇÏ¿© ½ÇÇ豺À¸·Î ¼³Á¤ÇÏ¿´´Ù. 4¸¶¸®ÀÇ New Zealand rabbitÀÇ tibiae¿¡ 1°³¾¿ÀÇ ½ÇÇ豺°ú ´ëÁ¶±º ÀÓÇöõÆ®¸¦ ½Ä¸³ÇÏ¿´À¸¸ç, 3ÁÖ¿Í 6ÁÖ¿¡ 2¸¶¸®¾¿ Èñ»ýÇÏ¿© micro-computed tomography (microCT) ÃÔ¿µ ÈÄ ºÐ¼®ÇÏ¿´´Ù.

°á°ú: Scanning electron microscope (SEM) »çÁø¿¡¼­ rhTGF-¥â2/PLGA ÀÔÀÚ°¡ ÀÓÇöõÆ® Ç¥¸é¿¡ ±ÕÀÏÇÏ°Ô ºÐ»êµÇ¾î ÀÖÀ½À» È®ÀÎÇÏ¿´´Ù. MicroCT ºÐ¼® °á°ú Åë°èÀûÀ¸·Î À¯ÀÇÇÏÁö´Â ¾ÊÁö¸¸ rhTGF-¥â2/PLGA¸¦ ó¸®ÇÑ ÀÓÇöõÆ®°¡ bone volume/total volume (BV/TV)¿Í trabecular thickness (Tb.Th) °ªÀÌ ´õ ³ôÀº °æÇ⼺À» º¸¿´À¸¸ç, cross sectional view¿¡¼­ ´õ ¸¹Àº °ñÀÌ Çü¼ºµÇ¾úÀ½À» È®ÀÎÇÏ¿´´Ù.

°á·Ð: rhTGF-¥â2/PLGA Ç¥¸éó¸®µÈ ÀÓÇöõÆ®°¡ ÁÖº¯ °ñÀÇ ¾çÀû ¼ºÀåÀ» ÃËÁø½Ãų ¼ö ÀÖÀ¸¸ç ÀÓÇöõÆ® Ãʱ⠰ñ À¯ÂøÀ» ÁõÁø½Ãų ¼ö ÀÖ´Â °¡´É¼ºÀ» º¸¿´´Ù.

PURPOSE. This preliminary rabbit study was conducted to evaluate the effect of recombinant human transforming growth factor-¥â2 (rhTGF-¥â2)/poly lactic-co-glycolic acid (PLGA) coating on osseointegration of the titanium (Ti) implant.

MATERIALS AND METHODS. Eight Ti implants were anodized with 300 voltages for three minutes. Four of those were coated with rhTGF-¥â2/PLGA by an electrospray method as the experimental group. The implants were placed into tibiae of four New Zealand rabbits, two implants per a tibia, one implant per each group. After 3 and 6 weeks, every two rabbits were sacrificed and micro-computed tomography (microCT) was taken for histomorphometric analysis.

RESULTS. In scanning electron microscope (SEM) image, the surface of rhTGF-¥â2/PLGA coated Ti implant showed well distributed particles. Although statistically insignificant, microCT analysis showed that experimental group has higher bone volume / total volume (BV/TV) and trabecular thickness (Tb.Th) values relatively. Cross sectional view also showed more newly formed bone in the experimental group.

CONCLUSION. In the limitation of this study, rhTGF-¥â2/PLGA particles coating on the Ti implant show the possibility of more favorable quantity of newly formed bone after implant installation.

Å°¿öµå

TGF-beta2; PLGA; ŸÀÌŸ´½; ÀÓÇöõÆ®
TGF-beta2; PLGA; Titanium; Implant; Osseointegration

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