Antisense inhibition of nuclear-encoded cytochrome c oxidase subunits IV and VIIc activity in the pre-implantation embryo.

Antisense inhibition of nuclear-encoded cytochrome c oxidase subunits IV and VIIc activity in the pre-implantation embryo.
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植入前胚胎中核编码的细胞色素 c 氧化酶亚基 IV 和 VIIc 活性的反义抑制。

DOI:
10.1002/dvg.1020140509
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发表时间:
1993
期刊:
Developmental genetics
影响因子:
--
通讯作者:
Grossman,LI
Grossman,LI
中科院分区:
--
文献类型:
--
作者:
Ao,A;Erickson,RP;Rosenthal,NH;Grossman,LI

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以前不知道核编码的线粒体亚基的合成是否发生在植入前胚胎中。我们已经使用体外转录的反义RNA的细胞质注射来研究这个问题。在两细胞期将细胞色素氧化酶亚基IV或VIIc的体外转录反义RNA注射到每个细胞中,显著抑制了8至16细胞期腺嘌呤核苷酸的合成,而注射同源正义RNA的水平与先前发表的正常胚胎相似。这些结果强烈表明,在植入前发育过程中,线粒体亚基的核编码mRNA的翻译是必需的。另外令人感兴趣的是,不仅ATP减少,而且ADP和AMP也减少,其效果是电荷比保持恒定。因此,研究结果还表明,细胞正常调节其电荷比的机制(被认为是腺苷酸脱氨酶)已经存在。© 1993 Wiley利斯公司
It had not previously been known whether synthesis of nuclear‐encoded mitochondrial subunits occurs in pre‐implantation embryos. We have used cytoplasmic injections of antisense RNA transcribed in vitro to study this question. Capped, in vitro transcribed RNA antisense to either cytochrome coxidase subunit IV or VIIc injected into each cell at the two‐cell stage markedly inhibited synthesis of adenine nucleotides by the 8‐ to 16‐cell stage, whereas injection of the cognate sense RNAs gave levels similar to those previously published for normal embryos. These results strongly suggest that translation of nuclear‐encoded mRNAs for mitochondrial subunits is required during pre‐implantation development. It was of additional interest that, not only was ATP decreased, but ADP and AMP as well, with the effect that the charge ratio remained constant. The results also suggest, therefore, that the mechanism by which cells normally regulate their charge ratio, thought to be with adenylate deaminase, is already in place. © 1993Wiley‐Liss, Inc.
注射 E-钙粘蛋白特异性反义 RNA 表明 E-钙粘蛋白促进压缩,这是哺乳动物胚胎分化的第一个步骤。
DOI: 10.1089/ard.1992.2.153
发表时间: 1992
期刊: Antisense research and development
影响因子: --
作者:
Ao,A;Erickson,RP
通讯作者: Erickson,RP
DOI: --
发表时间: 1985-11
期刊: Journal of embryology and experimental morphology
影响因子: --
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I. Dawid;S. Haynes;M. Jamrich;E. Jónás;S. Miyatani;T. Sargent;J. Winkles
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DOI: --
发表时间: 1986
影响因子: 3
作者:
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小鼠细胞色素c氧化酶亚基VIIc的cDNA的核苷酸序列。
DOI: --
发表时间: 1990
影响因子: 14.9
作者:
M. Akamatsu;L. Grossman
通讯作者: L. Grossman
卵裂期小鼠胚胎中表达的新型 mRNA 序列的分子克隆
DOI: 10.1002/mrd.1080340102
发表时间: 1993
影响因子: 2.5
作者:
H. Miyamoto;A. Matsushiro;M. Nozaki
通讯作者: M. Nozaki