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Modified simulated body fluid¿¡ ħÀüÇÑ Æ¼Å¸´½ Ç¥¸é¿¡¼­ ħÀü ±â°£¿¡ µû¶ó ³ªÅ¸³ª´Â ÆÄ°ñ ¼¼Æ÷ÀÇ ºÐÈ­¾ïÁ¦ ¾ç»ó

Inhibition of Osteoclast differentiation based on precipitation time of titanium surfaces immersed in modified simulated body fluid

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ÀåÇö¹Î, Ç㼺ÁÖ, ±è¼º±Õ, °ûÀ翵,
¼Ò¼Ó »ó¼¼Á¤º¸
ÀåÇö¹Î ( Chang Hyun-Min ) - ¼­¿ï´ëÇб³ Ä¡°ú´ëÇÐ Ä¡°úº¸Ã¶Çб³½Ç
Ç㼺ÁÖ ( Heo Seong-Joo ) - ¼­¿ï´ëÇб³ Ä¡°ú´ëÇÐ Ä¡°úº¸Ã¶Çб³½Ç
±è¼º±Õ ( Kim Seong-Kyun ) - ¼­¿ï´ëÇб³ Ä¡°ú´ëÇÐ Ä¡°úº¸Ã¶Çб³½Ç
°ûÀ翵 ( Koak Jai-Young ) - ¼­¿ï´ëÇб³ Ä¡°ú´ëÇÐ Ä¡°úº¸Ã¶Çб³½Ç

Abstract

¸ñÀû: º» ¿¬±¸ÀÇ ¸ñÀûÀº ƼŸ´½ µð½ºÅ©¸¦ Modified simulated body fluid (mSBF)¿¡ ħÀü½ÃÄ×À» ¶§, ħÀü ½ÃŲ ±â°£¿¡ µû¸¥ ÆÄ°ñ ¼¼Æ÷ ºÐÈ­ ¾ïÁ¦ º¯È­ ¾ç»óÀ» ¾Ë¾Æº¸´Â °ÍÀÌ´Ù.

Àç·á ¹× ¹æ¹ý: Machined surface¿Í anodized surface¸¦ °¡Áø ƼŸ´½ ÇÕ±Ý(Ti grade III)µð½ºÅ©¸¦ °¢°¢ Áõ·ù¼ö¿Í mSBF¿¡ ħÀü ½ÃÄ×´Ù. ħÀü ±â°£Àº 7ÀÏ, 14ÀÏ, 21ÀÏ, 28ÀÏ ÁøÇàÇÏ¿´À¸¸ç, °¢°¢ÀÇ ±â°£ µ¿¾È ´ëÁ¶±ºÀº Áõ·ù¼ö¿¡ ħÀüÇÏ¿´´Ù. ÆÄ°ñ ¼¼Æ÷·Î ºÐÈ­ °¡´ÉÇÑ RAW 264.7 ¼¼Æ÷¸¦ Á¡ÁÖÇÏ¿© ħÀü ±â°£¿¡ µû¸¥ ºÎÂøµÈ ¼¼Æ÷ ¼ö ÃøÁ¤, TRAP È°¼º ÃøÁ¤, western blotÀ» ÅëÇÑ NFATc1ÀÇ ¹ßÇö¾ç»óÀ» ÃøÁ¤ÇÏ¿´´Ù.

°á°ú: Machined surface¿Í anodized surface ¸ðµÎ¿¡¼­ mSBF¿¡14ÀÏ ÀÌ»ó ħÀüÇÏ¿´À» ¶§, ÆÄ°ñ ¼¼Æ÷ÀÇ ºÐÈ­¸¦ ¾ïÁ¦ÇÏ´Â ´É·ÂÀÌ Åë°èÀûÀ¸·Î À¯ÀÇÇÏ°Ô ³ªÅ¸³µ´Ù. ħÀü ±â°£°ú ¼¼Æ÷ÀÇ ºÎÂøÀº »ó°ü°ü°è°¡ ¾ø¾ú´Ù. 14ÀÏ ÀÌ»ó ħÀü½ÃÄ×À» ¶§, TRAP È°¼ºÀº °¨¼ÒµÇ¾úÀ¸¸ç, NFATc1ÀÇ ¹ßÇöÀº ¾ïÁ¦µÇ¾ú´Ù. 14ÀÏ ÀÌ»ó ħÀü ½ÃÄ×À» ¶§, TRAPÈ°¼º °¨¼Ò ¹× NFATc1 ¹ßÇö ¾ïÁ¦ ¾ç»óÀº º¯ÇÔÀÌ ¾ø¾ú´Ù.

°á·Ð: ƼŸ´½ ÇÕ±Ý µð½ºÅ©¸¦ 14ÀÏ ÀÌ»ó mSBF¿¡ ħÀü½ÃÅ°¸é RAW 264.7 ¼¼Æ÷°¡ ÆÄ°ñ ¼¼Æ÷·Î ºÐÈ­ÇÏ´Â °ÍÀ» ¸·À» ¼ö ÀÖ´Ù. ħÀü±â°£ÀÌ Áõ°¡Çصµ ºÐÈ­ ¾ïÁ¦ ¾ç»óÀº º¯È­ÇÏÁö ¾Ê´Â´Ù.

Purpose: The purpose of this study is to investigate the changes of osteoclast differentiation inhibition according to the period of precipitation when titanium disks were immersed in Modified simulated body fluid (mSBF).

Materials and methods: Titanium alloy (Ti grade III) disks with machined surfaces and anodized surfaces were immersed in distilled water and mSBF, respectively. The immersion periods were 7 days, 14 days, 21 days and 28 days, and the control group was immersed in distilled water for each period. RAW 264.7 cells capable of differentiating into osteoclasts were used to measure the number of adherent cells, the measurement of TRAP activity, and the expression pattern of NFATc1 by western blotting.

Results: The degree of inhibition of osteoclast differentiation was found to be statistically significant when the disks were immersed in mSBF for more than 14 days on both machined surfaces and anodized surfaces. There was no correlation between immersion time and cell attachment. When the disks were immersed for more than 14 days, TRAP activity was decreased and NFATc1 expression was inhibited. Futhermore, the decrease in TRAP activity and the inhibition of NFATc1 expression remained unchanged.

Conclusion: Immersion of titanium disks in mSBF for more than 14 days can prevent RAW 264.7 cells from differentiating into osteoclasts. Inhibition activity does not change even if the immersion period is for more than 14 days.

Å°¿öµå

Modified simulated body fluid (mSBF); ƼŸ´½ ÇÕ±Ý µð½ºÅ©; ÆÄ°ñ ¼¼Æ÷ ºÐÈ­; TRAP; NFATc1
Modified simulated body fluid (mSBF); Titanium alloy disk; Osteoclast differentiation; TRAP; NFATc1

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