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Electrospray¹ýÀ¸·Î rhTGF-¥â2/PLGA º¹ÇÕü¸¦ ÄÚÆÃÇÑ Æ¼Å¸´½¿¡¼­ÀÇ °£¿±Áٱ⼼Æ÷ Áõ½Ä¿¡ °üÇÑ ¿¬±¸

An in vitro study of mesenchymal stem cell proliferation on titanium discs coated with rhTGF-¥â2/PLGA by electrospray

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±èÁÖÇü, ±è¼º±Õ, Ç㼺ÁÖ, °ûÀ翵, À̿켺, ÀÌÁÖÈñ, ¹ÚÁö¸¸,
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±èÁÖÇü ( Kim Joo-Hyung ) - 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
À̿켺 ( Lee Woo-Sung ) - 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 ) - °ü¾Ç¼­¿ï´ëÇб³ Ä¡°úº´¿ø

Abstract

¸ñÀû: º» ¿¬±¸´Â in-vitro »ó¿¡¼­ recombinant human transforming growth factor-beta (rhTGF-¥â2)¿Í poly(D,L-lactide-co-glycolide) (PLGA) ÀÇ º¹ÇÕü¸¦ ƼŸ´½ µð½ºÅ© Ç¥¸é¿¡ ÄÚÆÃÇÏ¿©, »ý¹°ÇÐÀûÀ¸·Î °£¿±Áٱ⼼Æ÷ Áõ½Ä¿¡ ¹ÌÄ¡´Â ¿µÇâÀ» Á¶»çÇϱâ À§ÇØ ½ÃÇàµÇ¾ú´Ù.

Àç·á ¹× ¹æ¹ý:¾ç±Ø»êÈ­ µð½ºÅ©¿¡ ÀÏ·ºÆ®·Î½ºÇÁ·¹ÀÌ ÄÚÆùýÀ» ÀÌ¿ëÇÏ¿© anodized µÈ ƼŸ´½ µð½ºÅ©¸¦ ´ëÁ¶±ºÀ¸·Î ¼³Á¤ÇÏ°í, rhTGF-¥â2¸¦ 125 ng/ml¿Í 500 ng/ml ³óµµ·Î ÄÚÆÃÇÑ °ÍÀ» ½ÇÇ豺À¸·Î ÇÏ¿´´Ù. ƼŸ´½ µð½ºÅ© Ç¥¸é¿¡ ºÐ»çµÈ º¹ÇÕü°¡ ±ÕÀÏÇÏ°Ô ºÐ»çµÇ¾ú´ÂÁö field-emission scanning electron microscopy (FE-SEM)À» ÅëÇØ È®ÀÎÇÏ¿´À¸¸ç, atomic force microscope (AFM) test¸¦ ÀÌ¿ëÇÏ¿© rhTGF-¥â2·Î ÄÚÆÃÇÑ µð½ºÅ©¿Í ¾ç±Ø»êÈ­ µð½ºÅ©ÀÇ °ÅÄ¥±â Â÷À̸¦ È®ÀÎÇÏ¿´´Ù. µð½ºÅ© À§¿¡ °£¿±Áٱ⼼Æ÷ ¹è¾ç ÈÄ 1, 4, 7ÀÏ¿¡ ¼¼Æ÷Áõ½Ä ¾ç»óÀ» MTT (3-(4,5-dimethylthiazol-2-yl)-2,5 diphenyl-tetrazolium bromide) assay °Ë»ç¸¦ ÅëÇØ È®ÀÎÇÏ¿´´Ù.

°á°ú:AFM °á°ú ´ëÁ¶±º°ú ½ÇÇ豺¿¡¼­ °ÅÄ¥±âÀÇ À¯ÀÇÇÒ¸¸ÇÑ Â÷ÀÌ°¡ ¾ø¾ú´Ù (P>.05). MTT °á°ú 7ÀÏÂ÷ ¹è¾ç °á°ú¿¡¼­ 125 ng/ml¿Í 500 ng/ml PLGA/TGF-¥â2ó¸®µÈ ±×·ìÀº °¢°¢ Æò±Õ 0.45¿Í 0.48ÀÌ¿´À¸¸ç, ´ëÁ¶±ºÀº Æò±Õ 0.33À¸·Î PLGA/TGF-¥â2ó¸®µÈ ±×·ì¿¡¼­ ¼¼Æ÷ Áõ½ÄÀÌ ´õ È°¼ºÈ­ µÇ´Â °ÍÀ» È®ÀÎÇÒ ¼ö ÀÖ¾ú´Ù (P<.05).

°á·Ð: rhTGF-¥â2 º¹ÇÕü¸¦ electrospray¹ýÀ¸·Î ÄÚÆÃÇÑ Æ¼Å¸´½ Ç¥¸é¿¡¼­ 7ÀÏÂ÷¿¡¼­ ÁٱⰣ¿±¼¼Æ÷ÀÇ ºü¸¥ Áõ½ÄÀ» È®ÀÎÇÏ¿´´Ù. ¶ÇÇÑ º¹ÇÕü 󸮱ºÀÇ ³óµµ°¡ Áõ°¡ÇÒ¼ö·Ï ³ôÀº ¼¼Æ÷ ¼ºÀå ¼öÄ¡¸¦ º¸¿´´Ù.

PURPOSE: The purpose of this study is to identify the effect of mesenchymal stem cell proliferation on recombinant human transforming growth factor-beta (rhTGF-¥â2) / poly (D,L-lactide-co-glycolide) (PLGA) treated titanium discs by lectrospray.

MATERIALS AND METHODS: Anodized titanium surface coated with PLGA was used for a control group to compare anodized titanium surface coated with 125 ng/ml and 500 ng/ml rhTGF-¥â2 as test groups. Atomic force microscope (AFM) test was utilized to determine the difference in coating surface roughness, and field-emission scanning electron microscopy (FE-SEM) was taken to visualize even distribution of coating particles on titanium discs. The mesenchymal stem cell proliferation was tested by using MTT (3-(4,5-dimethylthiazol-2-yl)-2,5 diphenyl-tetrazolium bromide) assay on 1st, 4th, 7th days.

RESULTS: According to AFM results, there was no statistically significant difference in titanium discs treated with PLGA and with rhTGF-¥â2/PLGA (P>.05). MTT assay test results showed that there was statistically significant difference in mesenchymal stem cell proliferation on test groups compared to control groups at 7th day, and cell viability on discs coated with rhTGF-¥â2 was significantly higher than control groups (P<.05).

CONCLUSION: Titanium surface coated with rhTGF-¥â2/PLGA shows statistically significant higher cell proliferation and the titanium surface coated with the higher concentration of rhTGF-¥â2 presents faster cell growth activity.

Å°¿öµå

ƼŸ´½; rhTGF-¥â2; PLGA; Áٱ⼼Æ÷
Titanium; rhTGF-¥â2; PLGA; Mesenchymal stem cells

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