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¾îÆÛÆ® ¹× Å©·çÁð ÁõÈıºÀ» À¯¹ßÇÏ´Â °ñÁ¶Á÷ ƯÀ̼º FGFR2 µ¹¿¬º¯ÀÌ¿¡ ÀÇÇÑ µÎ°³¾È¸é ÇüÅÂÀÇ º¯È­

Craniofacial morphologic alteration induced by bone-targeted mutants of FGFR2 causing Apert and Crouzon syndrome

Korean Journal of Orthodontics 2006³â 36±Ç 4È£ p.284 ~ 294
À̱âÁØ, ³ªÇö´ö, ½ºÆ¼ºì ¼Ò¾Æ, ¹Ú¿µÃ¶, ¹éÇü¼±, À±Å¹Î, ¼ÛÁø¿í,
¼Ò¼Ó »ó¼¼Á¤º¸
À̱âÁØ ( Lee Kee-Joon ) - ¿¬¼¼´ëÇб³ Ä¡°ú´ëÇÐ ±³Á¤Çб³½Ç
³ªÇö´ö ( Nah Hyun-Duck ) - USA University of Pennsylvania Department of Biology
½ºÆ¼ºì ¼Ò¾Æ ( Stephen T. J. Tjoa ) - USA University of Pennsylvania Department of Biology
¹Ú¿µÃ¶ ( Park Young-Chel ) - ¿¬¼¼´ëÇб³ Ä¡°ú´ëÇÐ ±³Á¤Çб³½Ç
¹éÇü¼± ( Baik Hyoung-Seon ) - ¿¬¼¼´ëÇб³ Ä¡°ú´ëÇÐ ±³Á¤°úÇб³½Ç
À±Å¹Π( Yun Tae-Min ) - ¿¬¼¼´ëÇб³ Ä¡°ú´ëÇÐ ¿¹¹æÄ¡°úÇб³½Ç, ±¸°­°úÇבּ¸¼Ò, ±¸°­¾Ç¾È¸é°æÁ¶Á÷Àç»ý¼¾ÅÍ
¼ÛÁø¿í ( Song Jin-Wook ) - ¿¬¼¼´ëÇб³ Ä¡°ú´ëÇÐ ±³Á¤Çб³½Ç

Abstract

À¯ÀüÀûÀ¸·Î °áÁ¤µÇ´Â µÎ°³¾È¸é ±âÇüÀÇ ¹ß»ý ±âÀüÀ» ¹àÈ÷±â À§ÇØ °ü·ÃµÈ À¯ÀüÀÚÀÇ ±â´É º¯È­¿¡ ÀÇÇÑ È¿°ú¸¦ ÀÌÇØÇÏ´Â °ÍÀÌ ÇʼöÀûÀÌ´Ù. ¼¶À¯¾Æ¼¼Æ÷¼ºÀåÀÎÀÚ¼ö¿ëü-2 (FGFR2)ÀÇ È°¼ºÇü µ¹¿¬º¯ÀÌ°¡ ¾îÆÛÆ® ¹× Å©·çÁð ÁõÈıº¿¡¼­ÀÇ ºÀÇÕÀÇ Á¶±âÀ¯ÇÕÀÇ ¿øÀÎÀÌ µÈ´Ù°í ¾Ë·ÁÁ® ÀÖÀ¸³ª Àηù¿¡¼­´Â ´Ù¾çÇÑ °³ÀÎÂ÷°¡ Á¸ÀçÇϹǷΠÀÓ»óÀûÀ¸·Î Á¤ÀÇµÈ µÎ ÁõÈıº¿¡¼­ÀÇ À¯ÀüÇü-Ç¥ÇöÇüÀÇ »ó°ü°ü°è¿¡ ´ëÇؼ­´Â Àǹ®ÀÌ Á¦±âµÇ¾î ¿Ô´Ù. º» ¿¬±¸ÀÇ ¸ñÀûÀº ¾îÆÛÆ®(Pro253Arg)¹× Å©·çÁð(Cys278Phe) µ¹¿¬º¯À̸¦ °®´Â °ñƯÀ̼º FGFR2¸¦ ¹ßÇöÇϵµ·Ï Á¦ÀÛµÈ ÇüÁúº¯È¯ Áã¿¡¼­ °á°úÀûÀΠǥÇöÇüÀÇ Â÷À̸¦ ºÐ¼®ÇÏ¿© À¯ÀüÇü¿¡ ÀÇÇÑ ±âÇü Çü¼ºÀÇ Àΰú°ü°è¸¦ ÃßÁ¤Çϱâ À§ÇÑ °ÍÀÌ´Ù. À¯ÀüÀÚ Á¶ÀÛÀ» ÇÏÁö ¾ÊÀº Á¤»ó±º°ú Á¤»ó FGFR2 À¯ÀüÀÚ¸¦ °¡Áø ±ºÀ» ´ëÁ¶±ºÀ¸·Î ÇÏ¿© À°¾È °üÂû ¹× micro-CT¸¦ ÀÌ¿ëÇÑ ÇüÅ°èÃøÇÐÀû ¹æ¹ýÀ¸·Î ÁÖ·Î Àü¹æµÎ°³ ¹× ÀüµÎ°³Àú ºÎÀ§ÀÇ ÀÌ»óÀ» ºÐ¼®ÇÏ¿© ´ÙÀ½°ú °°Àº °á·ÐÀ» ¾ò¾ú´Ù. ù°, ¾îÆÛÆ® ¹× Å©·çÁð µ¹¿¬º¯À̸¦ °®´Â °¢°¢ÀÇ ÇüÁúº¯È¯ Áã´Â µÎ°³ ºÀÇÕÀÇ À¯ÇÕ°ú ÀüÈĹæÀû µÎºÎ ±æÀÌ °¨¼Ò¸¦ °øÈ÷ º¸¿´À¸³ª ¾îÆÛÆ® ÇüÁúº¯È¯ Áã¿¡¼­¸¸ ÀüÄ¡ºÎ ¹Ý´ë±³ÇÕÀÌ ³ªÅ¸³µ´Ù. ¶ÇÇÑ ¾îÆÛÆ® °³Ã¼´Â Å©·çÁ𠰳ü ¹× ´ëÁ¶±º¿¡ ºñÇØ Àü¹æµÎ°³ ¹× ÀüµÎ°³Àú ±¼°î¿¡ À־ Á¤»ó±º°ú ºñ±³ÇØ Â÷À̸¦ ³ªÅ¸³ÂÀ¸¸ç ÀÌ´Â À¯ÇÕÀ» º¸ÀÌ´Â ºÀÇÕÀÇ ºÎÀ§ ¹× ¼ø¼­¿¡ À־ÀÇ Â÷ÀÌ¿¡ ±âÀÎÇÏ´Â °ÍÀ¸·Î »ç·áµÈ´Ù. µÑ°, Á¤»ó FGFR2 À¯ÀüÀÚ¸¦ ÁÖÀÔÇÑ ÇüÁúº¯È¯ Áã´Â Á¤»óÀûÀÎ µÎ°³¾È¸é ÇüŸ¦ º¸¿´´Ù. ÀÌ»óÀÇ °á°ú¸¦ Åä´ë·Î ¾îÆÛÆ® ¹× Å©·çÁð µ¹¿¬º¯ÀÌ´Â °¢°¢ÀÇ À¯ÀüÇü¿¡ ƯÀÌÇÑ µÎ°³¾È¸é ±âÇüÀ» À¯¹ßÇÒ °ÍÀ¸·Î º¸À̸ç Á¤»ó FGFR2ÀÇ ¹ßÇö °­µµº¸´Ù´Â ±â´ÉÀÇ ÀÌ»óÀÌ µÎ°³°ñ À¯ÇÕ°ú °ü·ÃÀÌ ÀÖ´Â °ÍÀ¸·Î »ç·áµÈ´Ù. º¯ÇüµÈ FGFR2¿Í °¢ ºÀÇÕ¿¡¼­ÀÇ ±â´É°úÀÇ »ó°ü¼ºÀº Ãß°¡ ¿¬±¸°¡ ÇÊ¿äÇÒ °ÍÀ¸·Î »ç·áµÈ´Ù.

Activating mutations in the fibroblast growth factor receptor-2 (FGFR2) have been shown to cause syndromic craniosynostosis such as Apert and Crouzon syndromes. The purpose of this pilot study was to investigate the resultant phenotypes induced by the two distinctive bone-targeted gene constructs of FGFR2, Pro253Arg and Cys278Phe, corresponding to human Apert and Crouzon syndromes respectively. Methods: Wild type and a transgenic mouse model with normal FGFR2 were used as controls to examine the validity of the microinjection. Micro-CT and morphometric analysis on the skull revealed the following results. Results: Both Apert and Crouzon mutants of FGFR2 induced fusion of calvarial sutures and anteroposteriorly constricted facial dimension, with anterior crossbite present only in Apert mice. Apert mice differed from Crouzon mice and transgenic mice with normal FGFR2 in the anterior cranial base flexure and calvarial flexure angle which implies a possible difference in the pathogenesis of the two mutations. In contrast, the transgenic mice with normal FGFR2 displayed normal craniofacial phenotype. Conclusion: Apert and Crouzon mutations appear to lead to genotype-specific phenotypes, possibly causing the distinctive sites and sequence of synostosis in the calvaria and cranial base. The exact function of the altered FGFR2 at each suture needs further investigation.

Å°¿öµå

µÎ°³°ñ À¯ÇÕÁõ;¾îÆÛÆ® ÁõÈıº;Å©·çÁð ÁõÈıº
Craniosynostosis;Apert syndrome;Crouzon syndrome;FGFR2

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