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ÀÓÇöõÆ® Ç¥¸éÀÇ Ca-P ÄÚÆà ¹æ¹ýÀÌ MG63 °ñ¸ðÀ¯»ç¼¼Æ÷ ¹ÝÀÀ¿¡ ¹ÌÄ¡´Â ¿µÇâ¿¡ ´ëÇÑ in vitro ¿¬±¸

The effect of Ca-P coatings of anodized implant surface on response of osteoblast-like cells in vitro

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±èÀÏ¿¬ ( Kim Il-Yeon ) - °í·Á´ëÇб³ ÀÓ»óÄ¡ÀÇÇдëÇпø °í±ÞÄ¡°úº¸Ã¶Çаú
Á¤¼º¹Î ( Jung Sung-Min ) - À£Ä¡°ú
Ȳ¼øÁ¤ ( Hwang Soon-Jung ) - ¼­¿ï´ëÇб³ Ä¡°ú´ëÇÐ ±¸°­¾Ç¾È¸é¿Ü°úÇб³½Ç
½Å»ó¿Ï ( Shin Sang-Wan ) - °í·Á´ëÇб³ ÀÓ»óÄ¡ÀÇÇдëÇпø °í±ÞÄ¡°úº¸Ã¶Çаú

Abstract

¿¬±¸¸ñÀû: º» ¿¬±¸¿¡¼­´Â ¾ç±Ø»êÈ­ ÀÓÇöõÆ® Ç¥¸é¿¡ ¼­·Î ´Ù¸¥ µÎ °¡Áö ¹æ¹ý, Ion beam-assisted deposition (IBAD)¹ý°ú Sol-gel¹ýÀ¸·Î Ca-P ÄÚÆÃÇÑ ÀÓÇöõÆ® ½ÃÆí¿¡ °ñ¸ð¼¼Æ÷¸¦ ¹è¾çÇÏ¿´À» ¶§ ¼¼Æ÷ÀÇ Áõ½Ä, ºÐÈ­, ÇüÅ¿¡ ¾î¶°ÇÑ ¿µÇâÀ» ¹ÌÄ¡´ÂÁö Á¶»çÇÏ°íÀÚ ÇÑ´Ù.

¿¬±¸Àç·á ¹× ¹æ¹ý: Áö¸§ 10 mm, µÎ²² 2 mm ÀÎ »ó¾÷¿ë ¼ø¼ö titanium grade ¥³ ÀçÁúÀÇ µð½ºÅ©¸¦ Á¦ÀÛÇÏ¿´°í, ¸ðµç ½ÃÆíÀº acetone, 70% ethanol, Áõ·ù¼ö¿¡¼­ °¢°¢ 10ºÐ¾¿ ¼¼Ã´ ÈÄ °ÇÁ¶ÇÏ¿´´Ù. ¸ðµç Ç¥¸éÀº 300 VÀÇ constant voltageÇÏ¿¡¼­ ¾ç±Ø »êÈ­ (anodized)½ÃŲ´Ù. ½ÇÇ豺Àº ¾ç±Ø»êÈ­ ÀÓÇöõÆ® Ç¥¸é¿¡ °¢°¢ IBAD¹ý°ú Solgel¹ýÀ¸·Î Ca-P ÄÚÆÃÇÏ¿´´Ù. °¢ Ç¥¸éÀÇ ¹Ì¼¼Ç¥¸é °ÅÄ¥±â(Ra)¸¦ ÃøÁ¤ÇÏ¿´°í, SEMÀ» ÅëÇØ Ç¥¸éÀÇ Çü»óÀ» °üÂûÇÏ¿´´Ù. °ñ¸ð¼¼Æ÷À» ¹è¾çÇÑ ÈÄ °¢ Ç¥¸é±ºÀÇ ¼¼Æ÷Áõ½Ä, ALP È°¼ºµµ ¹× RT-PCR¸¦ ÅëÇÑ °ñ¼¼Æ÷ ºÐÈ­ ´É·Â °ËÁõÀ» ÇÏ¿´À¸¸ç, SEMÀ» ÅëÇØ ¼¼Æ÷ÀÇ Çü»óµµ È®ÀÎÇÏ¿´´Ù. Åë°èºÐ¼®Àº SPSS (version 12.0) ÇÁ·Î±×·¥À» ÀÌ¿ëÇÏ¿© Kruskal-Wallis Test·Î °¢ ±ºÀÇ À¯ÀǼºÀ» °ËÁõÇÏ¿´´Ù (¥á= 0.05).

°á °ú: IBAD¹ýÀ¸·Î Ca-P ÄÚÆÃÇÑ Ç¥¸éÀÌ Sol-gel¹ýÀ¸·Î Ca-P ÄÚÆÃÇÑ Ç¥¸éº¸´Ù Ç¥¸é °ÅÄ¥±â (Ra) °ªÀÌ ´õ Å©°Ô ³ªÅ¸³µ´Ù (P < .05). IBAD¹ýÀ¸·Î Ca-P ÄÚÆÃÇÑ Ç¥¸éÀÌ Sol-gel¹ýÀ¸·Î Ca-P ÄÚÆÃÇÑ Ç¥¸é º¸´Ù ¼¼Æ÷ Áõ½ÄÀÌ ´õ È°¹ßÇÏ°í °ñ¼¼Æ÷ Á¶±â ºÐÈ­ Á¤µµ¸¦ È®ÀÎ ÇÒ ¼ö ÀÖ´Â ALP È°¼ºµµ ¶ÇÇÑ ´õ ³ô°Ô ³ªÅ¸³µ´Ù (P < .05). SEM °üÂû °á°úIBAD¹ýÀ¸·Î Ca-P ÄÚÆÃÇÑ Ç¥¸é¿¡ °ñ¸ð¼¼Æ÷µéÀÌ Ä£È­¼ºÀ» ¶ç¸é¼­ ¾ÈÁ¤ÀûÀ¸·Î ºÎÂøµÇ¾ú´Ù.

°á ·Ð: IBAD¹ýÀ¸·Î Ca-P ÄÚÆÃÇÑ Ç¥¸éÀÌ Sol-gel¹ýÀ¸·Î Ca-P ÄÚÆÃÇÑ Ç¥¸éº¸´Ù ´õ ¿ì¼öÇÑ ¼¼Æ÷ ¹ÝÀÀÀ» º¸¿´´Ù. IBAD¹ýÀ¸·Î Ca-P ÄÚÆÃÇÑ Ç¥¸éÀÇ ¼¼Æ÷µéÀº Áõ½ÄÀÌ Àß ÀÌ·ç¾îÁö°í Àß ºÐÈ­µÈ °ñ¸ð¼¼Æ÷ Çü»óÀ» º¸ÀÌ°í ALP È°¼ºµµ ¶ÇÇÑ ³ô¾Æ °ñ Çü¼ºÀ» Áõ°¡½ÃÄÑ ³ôÀº °ñ-ÀÓÇöõÆ® Á¢ÃËÀ» º¸ÀÏ °ÍÀÌ´Ù.

Purpose: The purpose of this study was to evaluate the response of osteoblast-like cells to Ca-P coated surface obtained via Ion beam-assisted deposition (IBAD) method and Sol-Gel process on anodized surface by cellular proliferation and differentiation.

Material and Methods: The surface of a commercially pure titanium (Grade IV) discs with dimension of 10mm diameter and 2 mm thickness was modified by anodic oxidation under a constant voltage of 300 V. The experimental groups were coated with Ca-P by the IBAD method and Sol-Gel process on anodized surface. The surface roughness (Ra) of specimens was measured by optical interferometer and each surface was examined by SEM. To evaluate cell response, MG63 cells were cultured and cell proliferation, ALP activity and the ability of cell differentiation were examined. Also, cell morphology was examined by SEM. The significant of each group was verified by Kruskal-Wallis Test (¥á= .05).

Results: The Ra value of Ca-P coated surface by IBAD method was significantly higher than Ca-P coated surface by Sol-gel process (P < .05). The level of cell proliferation and ALP activity was higher in Ca-P coated surface by IBAD method (P < .05). The expression of ALP showed higher level expression in Ca-P coated surface by IBAD method. Cells grown on Ca-P coated surface by IBAD method were uniformly distributed and developed a very close layer.

Conclusion: These experiments showed better performances of Ca-P coated surface by IBAD method with respect to Ca-P coated surface by Sol-gel process. Ca-P coated surface by IBAD method appear to give rise more mature osteoblast characteristics and might result in increased bone growth and bone-implant contact.

Å°¿öµå

ÀÓÇöõÆ® Ç¥¸é;¾ç±Ø»êÈ­;Hydroxyapatite;Ion beam-assisted deposition;Sol-Gel;¼¼Æ÷¹ÝÀÀ
Implant surface;Anodic oxidation;Hydroxyapatite;Ion beam-assisted deposition;Sol-gel;Cellular response

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