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KMID : 0358420130560050320
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Korean Journal of Obstetrics and Gynecology
2013 Volume.56 No. 5 p.320 ~ p.329
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The influence of serum substituents on serum-free Vero cell conditioned culture media manufactured from Dulbecco’s modified Eagle medium in mouse embryo culture
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Lee Jong-Seon
Kim Ju-Hwan
Seo Young-Seok
Yang Jung-Bo
Kim Yong-Il
Kim Hye-Jin
Lee Ki-Hwan
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Abstract
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Objective:This study was conducted to examine the influences of supplementation of the serum substituents and available period of serum-free Vero cell conditioned media (SF-VCM) manufactured from Dulbecco’s modified Eagle medium cultured with Vero cells for in vitro development of mouse preimplantation embryos.
Methods:A total of 1,099 two-cell embryos collected from imprinting control region mice were cultured in SF-VCM with 10% and 20% human follicular fluid (hFF), serum substitute supplement (SSS), and serum protein substitute (SPS). Development of embryos was observed every 24 hours. Results between different groups were analyzed by chi-square test, and considered statistically significant when P-value was less than 0.05.
Results: The rates of embryonic development cultured in SF-VCM supplemented with serum substituents were significantly higher compare with serum-free group (P < 0.05). The rates of embryonic development after 48 hours (morula≤) and 96 hours (blastocyst≤) were significantly higher in 20% SSS and 10% SPS than in 20% hFF supplementation (P < 0.05). And the rates of embryonic development after 96 hours (hatching blastocyst≤) were significantly higher in 10% SPS (94.5%) than in 20% SSS (82.6%) and 20% hFF supplementation (68.5%). The rates of embryonic development according to storage period of the SF-VCM supplemented with 10% SPS showed no significant difference between control, 2 weeks and 4 weeks group. However developmental rate in 6 weeks storage group was significantly lower than other groups.
Conclusion: The rate of embryonic development after 96 hours (hatching blastocyst≤) was significantly higher in SF-VCM supplemented with 10% SPS. And storage period of media up to 4 weeks did not affect on embryonic development.
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KEYWORD
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Coculture, Mouse embryo, Serum free culture media, Vero cells
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