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Abstract

¸ñÀû: »ýÁã ³­ÀÚÀÇ Ã¼¿Ü¼öÁ¤½Ã, ü¿Ü¼öÁ¤ÈÄ Ãʱâ 2-¼¼Æ÷±â ¹è¾ÆÀÇ ¼ºÀå¹ß´Þ, ü³»¼öÁ¤µÈ Ãʱâ 2-¼¼Æ÷±â ¹è¾ÆÀÇ Ã¼¿Ü¿¡¼­ÀÇ ¼ºÀå¹ß´Þ¿¡ ¹ÌÄ¡´Â °ø¹è¾çÀÇ È¿°ú¿¡ ´ëÇÏ¿© ºñ±³ °üÂûÇÔÀ¸·Î½á °ø¹è¾çÀÌ ¾î¶² ½ÃÁ¡¿¡¼­ ¾î¶² ¾ç»óÀ¸·Î ü¿Ü¼öÁ¤ÇÁ·Î±×·¥¿¡ ¿µÇâÀ» ¹ÌÄ¡´ÂÁö ¾Ë¾Æº¸°íÀÚ ÇÏ¿´´Ù.
¿¬±¸¹æ¹ý: 4-6ÁÖ·ÉÀÇ Á¦ 1´ë ÀâÁ¾ »ýÁã(C57BL ¡¿ CBA)¸¦ °ú¹è¶õ À¯µµÈÄ È¹µæÇÑ ³­ÀÚ¿Í Á¤ÀÚÀÇ Ã¼¿Ü¼öÁ¤À» ½Ç½ÃÇÔ¿¡ À־ ü¿Ü¼öÁ¤½Ã, ü¿Ü¼öÁ¤ÈÄ¿¡ ¾òÀº Ãʱâ 2-¼¼Æ÷±â ¹è¾Æ, ü³»¼öÁ¤µÈ ÈÄ ¾òÀº Ãʱâ 2-¼¼Æ÷±â ¹è¾ÆÀÇ ¹è¾ç½Ã ¹è¾ç¾×³»¿¡ °ø¹è¾çÀ» ½Ç½ÃÇÏÁö ¾Ê´Â ±º(´ëÁ¶±º), Vero ¼¼Æ÷·Î °ø¹è¾çÇÑ ±º, »ç¶÷ÀÇ ¾ç¸·¼¼Æ÷·Î °ø¹è¾çÇÑ ±ºÀ¸·Î ³ª´©¾î ü¿Ü¼ºÀå ¹ß´ÞÀ» 120½Ã°£ÈÄ °üÂûÇÏ¿´´Ù. °á°úÀÇ Åë°èÀû À¯ÀǼºÀº chi-°ËÁõÀ» ÀÌ¿ëÇÏ¿´´Ù.
°á°ú: ü¿Ü¼öÁ¤´ç½Ã °ø¹è¾çÀÇ È¿°ú´Â ´ëÁ¶±º, Vero ¼¼Æ÷·Î °ø¹è¾çÇÑ ±º, ¾ç¸·¼¼Æ÷·Î °ø¹è¾çÇÑ ±ºÀ» ºñ±³ÇÒ ¶§ ¼öÁ¤·üÀº ´ëÁ¶±ºÀÌ °ø¹è¾çÇÑ ±º º¸´Ù À¯ÀÇÇÏ°Ô ³ô¾ÒÀ¸¸ç, 120½Ã°£ÈÄ ¹è¾ÆÀÇ ¼ºÀå¹ß´ÞÀº ¼¼±º°£¿¡ °¢°¢ À¯ÀÇÇÑ Â÷ÀÌ°¡ ¾ø¾ú´Ù. ü¿Ü¼öÁ¤ÈÄ ¾òÀº Ãʱâ 2-¼¼Æ÷±â ¹è¾ÆÀÇ ¼ºÀå¹ß´ÞÀ» °üÂûÇÑ °á°ú ´ëÁ¶±º°ú °ø¹è¾çÇÑ µÎ ±º »çÀÌ¿¡ À¯ÀÇÇÑ Â÷ÀÌ°¡ ¾ø¾ú´Ù. ü³»¼öÁ¤ÈÄ ¾òÀº Ãʱâ 2-¼¼Æ÷±â ¹è¾ÆÀÇ ¼ºÀå¹ß´ÞÀ» °üÂûÇÑ °á°ú Æ÷¹è±â ¹è¾Æ·ÎÀÇ ¹ß´ÞÀº ´ëÁ¶±º°ú µÎ °ø¹è¾çÇÑ µÎ±º »çÀÌ¿¡ À¯ÀÇÇÑ Â÷ÀÌ°¡ ¾ø¾ú´Ù.±×·¯³ª ºÎÈ­¹è¹ÝÆ÷·ÎÀÇ ¹ß´ÞÀº °ø¹è¾çÇÑ µÎ ±ºÀÌ ´ëÁ¶±ºº¸´Ù À¯ÀÇÇÏ°Ô ³ô¾Ò´Ù.
°á·Ð: »ýÁã³­ÀÚ¸¦ óÀ½ºÎÅÍ Ã¼¿Ü¿¡¼­ ¼öÁ¤ ¹× ¹ßÀ°½ÃÅ°´Â °æ¿ì ¹è¾ÆÀÇ ¼ºÀå¹ß´ÞÀº ¹è¾Æ ¿ÜºÎÀÇ È¯°æ¿¡ ´ëÇÑ ÀÇÁ¸¼ºÀº ±×´ÙÁö Å©Áö ¾ÊÀº °ÍÀ¸·Î º¸ÀδÙ. Áï ü¿Ü¼öÁ¤µÈ ¹è¾Æ¿¡ À־´Â »ý¸®Àû ȯ°æÁ¶¼ºÀ» À§ÇÑ °ø¹è¾ç¿¡ ÀÇÇÑ ¹è¾Æ¼ºÀå¹ß´ÞÀÇ ÃËÁø È¿°úº¸´Ù´Â ¼öÁ¤³­ÀÚüÀÇ ¾î¶² ¼¼Æ÷³» ±âÀü µîÀÇ ³»ºÎÀÎÀÚ¿¡ ÀÇÇØ ¼ºÀåÀÌ ÁÖµµµÇ´Â °ÍÀ¸·Î »ý°¢µÈ´Ù. ü¿Ü¼öÁ¤µÈ ¹è¾Æ¿¡¼­ ¼ºÀåÀ» ÁÖµµÇÏ´Â ³»ºÎÀÎÀÚ¿¡ ´ëÇÑ ±Ô¸íÀ» À§Çؼ­´Â ÇâÈÄ ¸¹Àº ¿¬±¸°¡ ÇÊ¿äÇÒ °ÍÀ¸·Î »ý°¢ÇÑ´Ù.
Objectives: Our objective was to investigate the effect of coculture system on in vitro fertilization and development of mice embryos.
Methods: FI hybrid mice were superovulated with PMSG/hCG. Recruited oocytes were divided into three subgroups which are control(subgroup a), Vero cell coculture(subgroup b) and human amniocyte coculture subgroup (subgroup c) respectively. For 3 subgroups, we observed fertilization after 24 hours of incubation.
In vitro fertilized early 2-cell stage embryos were allocated to Group I and in vivo fertilized early 2-cell stage embryos were allocated to Group II. Also, each group was divided into control (subgroup a), Vero cell coculture(subgroup b) and human amniocyte coculture subgroup(subgroup c) respectively. For 6 subgroups, we observed in vitro development to blastocyst and that to hatching blastocyst after 120 hours of incubation.
Results: As to recruited oocytes, the in vitro fatilization rate of subgroup a was significantly higher than that of subgroup b and subgroup c (p<0.05). In Group I, the developmental rates were not significantly different between the three subgroups. But in Group II, the developmental rates to hatching blastocysts of subgroup b and c were significantly higher than that of subgroup a (p<0.05).
Conclusion: The development of the in vitro fertilized mouse embryos seemed to be independent of physiologic condition which we think coculture system may give to the embryos. The independent developmental capability of the in vitro fertilized embryos might be obtained through a certain intracellular mechanism for which there should be the need of many more investigations to be verified.

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°ø¹è¾ç;Vero ¼¼Æ÷;»ýÁã¹è¾Æ;coculture;in vitro fertilization;mouse embryos;Vero cell

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