OBJECTIVE:To elucidate the function of cytosolic malate dehydrogenase (Mor2) in oocyte maturation and embryo development using RNA interference (RNAi). DESIGN:Experimental animal study. SETTING:Research unit of university. ANIMAL(S):Female 4-week-old (C57/BL6) mice. INTERVENTION(S):Isolation of immature germinal vesicle (GV) oocytes or fertilized pronucleus (PN) embryos, microinjection of Mor2 double-stranded RNA (dsRNA), and reverse transcription and polymerase chain reaction (RT-PCR) analysis to investigate Mor2-specific messenger RNA (mRNA) knockdown. MAIN OUTCOME MEASURE(S):Relative changes in mRNA levels after microinjection of Mor2 dsRNA and in rates of oocyte maturation and preimplantation embryo development. RESULT(S):Mor2 mRNA mostly was knocked down in germinal vesicle- and metaphase I (MI)-arrested oocytes, compared with metaphase II (MII)-developed oocytes, after microinjection of Mor2 dsRNA and in vitro culture for 16 hours. In vitro oocyte maturation was significantly decreased (34%), compared with noninjected (73.4%) and buffer-injected (67.5%) control groups. The rate of blastocyst development (48.1%) was lower in the Mor2 dsRNA-injected group than in buffer-injected control (88.2%). CONCLUSION(S):In the present study, the function of Mor2 was analyzed with the aid of RNAi. On the basis of the data obtained, we propose that Mor2 is an essential factor for oocyte maturation and embryo development in mouse.

译文

目的:利用RNA干扰技术(RNAi)阐明胞质苹果酸脱氢酶(Mor2)在卵母细胞成熟和胚胎发育中的功能。
设计:实验动物研究。
单位:大学研究单位。
动物:4周龄雌性(C57 / BL6)小鼠。
干预:分离未成熟的生小泡(GV)卵母细胞或受精的原核(PN)胚胎,显微注射Mor2双链RNA(dsRNA),以及反转录和聚合酶链反应(RT-PCR)分析以研究Mor2-特定的信使RNA(mRNA)敲低。
主要观察指标:微量注射Mor2 dsRNA后mRNA水平以及卵母细胞成熟和植入前胚胎发育的相对变化。
结果:显微注射Mor2 dsRNA并进行体外培养16小时后,与生中期II(MII)发育的卵母细胞相比,生胚囊泡和中期I(MI)发育的卵母细胞中Mor2 mRNA大部分被敲低。与未注射(73.4%)和注射缓冲液(67.5%)的对照组相比,体外卵母细胞成熟显着降低(34%)。注入Mor2 dsRNA的组的胚泡发育率(48.1%)低于注入缓冲液的对照组(88.2%)。
结论:在本研究中,借助于RNAi分析了Mor2的功能。根据获得的数据,我们建议Mor2是小鼠卵母细胞成熟和胚胎发育的重要因素。

+1
+2
100研值 100研值 ¥99课程
检索文献一次
下载文献一次

去下载>

成功解锁2个技能,为你点赞

《SCI写作十大必备语法》
解决你的SCI语法难题!

技能熟练度+1

视频课《玩转文献检索》
让你成为检索达人!

恭喜完成新手挑战

手机微信扫一扫,添加好友领取

免费领《Endnote文献管理工具+教程》

微信扫码, 免费领取

手机登录

获取验证码
登录