Effects of Roscovitine on In Vitro Development of Porcine Oocyte Using Brilliant Cresyl Blue
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- 2023.04.05
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- 2017.09
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서지정보
ㆍ발행기관 : 한국수정란이식학회
ㆍ수록지정보 : Journal of Embryo Transfer / 32권 / 3호
ㆍ저자명 : Pantu Kumar Roy, Xun Fang, Bahia MS Hassan, Sang Tae Shin, Jong Ki Cho
영어 초록
The objective of this experiment was to explore the effects of Roscovitine (Rosco) prior to in vitro maturation (IVM) of immature pig oocyte. Brilliant cresyl blue test has been used to select the good quality of oocyte. Specifically, the effects of Rosco exposure on nuclear and cytoplasmic maturation, diameter, intracellular glutathione (GSH) and reactive oxygen species (ROS), and embryonic development after parthenogenetic activation (PA) and somatic cell nuclear transfer (SCNT), and gene expression levels in SCNT embryos have been measured. Cumulus oocyte complexes (COCs) have been exposed in 75 M of Rosco for 22 and 44 h. The COCs that were matured in the IVM for 44 h without Rosco used as control group. Diameter of matured porcine oocytes 44 h culture with Rosco was significantly lower than 22 h culture with Rosco and control groups. GSH was higher in control group than 22 h and 44 h with Rosco but reduction of ROS in 22 h than 44 h with Rosco. In PA, exposure with Rosco 44 h oocytes group has been significantly lower than 22 h and control group in rates of maturation, cleavage and blastocyst formation. Similarly, in SCNT embryos rates of maturation, cleavage and formation of blastocyst have been also significantly lower in 44 h Rosco treated group than other two groups. SCNT embryos treated with Rosco 22 h showed greater expression levels of POU5F1, DPPA2 and NDP52Il mRNA compared with other two groups. Our results demonstrate that Rosco treatment with 22 h prior to IVM improves the development competence of porcine oocyte.
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