异种核移植早期胚胎线粒体发生异常机制研究
发布时间:2020-12-11 18:41
异种体细胞核移植(inter-specific somatic cell nuclear transfer,iSCNT)胚胎易出现发育阻滞现象,线粒体功能异常可能是导致iSCNT合子基因组激活(Zygotic genome activation,ZGA)失败的重要原因。本研究对8-cell期牛-牛同种与羊-牛异种克隆胚胎RNA-Seq测序分析发现,在异种克隆胚胎中,与线粒体功能相关基因表达出现异常,如线粒体融合基因Mfn1和Mfn2、线粒体核糖体大亚基基因Mrpl48、线粒体外膜基因Tomm40、线粒体内膜基因Timm22和Timm23,以及线粒体促凋亡基因Caspase-2等。RT-qPCR结果显示,Mfn1、Mfn2、Timm22、Timm23、Tomm40和Mrpl48在异种克隆胚胎的表达量显著低于同种克隆胚胎,Caspase-2表达量显著高于同种克隆胚胎。同种克隆胚胎中的Tomm40、Timm22、Timm23和Mrpl48的表达量分别是异种克隆胚胎的15.38、11.01、9.38和2.61倍。蛋白免疫荧光分析发现,钠/钾离子转运蛋白ATP1B3、线粒体融合蛋白MFN1和MF...
【文章来源】:内蒙古大学内蒙古自治区 211工程院校
【文章页数】:72 页
【学位级别】:硕士
【部分图文】:
牛、小鼠IVF及NT胚胎发育率
内蒙古大学 硕士学位论文常胚胎发育过程的一系列表观修饰变化,如染色质的重构、组蛋白的替换、组蛋白的 H3K9 和 H3K27 等修饰和 DNA 甲基化等重编程修饰。这些重要的生物学事件都需要在 ZGA 之前完成。如果这些重编程过程发生异常,都会导致重构胚胎的 ZGA 失败,进而影响重构胚的发运命运。图 1.2 为 SCNT 胚胎在早期发育过程中发生的重编程分子机制,表观遗传障碍可能是导致 SCNT 胚胎效率低下的重要原因[27]。
图 2.1 体外发育的克隆胚胎A:羊-牛异种克隆 8-cell 胚胎;B:牛-牛同种克隆 8-cell 胚胎;C:牛-牛同种克隆囊胚Figure2.1 Photograph of in vitro development of SCNT embryos.A: O-B inter-species cloned 8-cell embryos, B: B-B intra-species cloned 8-cell embryos, C: B-Bintra-species cloned blastocyst.表 2.1 同种、异种克隆胚胎发育情况统计Table 2.1 Statistics of the development of intra-/inter-species cloned embryos.组别Groups胚胎数Embryos融合胚胎Fusion embryos2-cell 胚胎2-cell embryos8-cell 胚胎8-cell Embryos桑椹胚Morulae囊胚Blastocyst牛-牛 339 272 (80.2)a213 (78.3)a179 (65.8)a118 (43.4)a58 (27.2)a羊-牛 307 249 (81.1)a186 (74.7)a126 (63.3)a3 (1.2)b0b注:同一纵行的不同小写字母差异显著(P<0.05)
【参考文献】:
期刊论文
[1]受精后精子线粒体的命运与泛素-蛋白酶体通路间的关系[J]. 史文姝,金一. 中国畜牧杂志. 2015(19)
[2]抑制线粒体氧化磷酸化活性对卵子体外成熟、受精及发育的影响[J]. 葛红山,李晓和,张帆,陈华,习海涛,黄检英,朱春芳,吕杰强. 北京大学学报(医学版). 2013(06)
[3]p53非依赖性信号通路在DNA损伤致细胞凋亡中的研究进展[J]. 张潇芸,姜英,杨军. 浙江大学学报(医学版). 2013(02)
[4]MRPL48基因在代谢综合征诊断中的意义探讨[J]. 孙鲁宁,张宁,宋晓宇,郑宁宁,张海鹏. 中国全科医学. 2011(18)
[5]牛-山羊异种体细胞克隆胚胎线粒体形态超微结构观察[J]. 敬晓棋,雷安民,屈雷,窦忠英. 中国农业科学. 2010(12)
[6]Embryonic stem cells generated by nuclear transfer of human somatic nuclei into rabbit oocytes[J]. YING CHEN, ZHI Xu HE, AILIAN LIU, KAI WANG, WEN WEI MAO, JIAN XIN CHU, YONG LU, ZHENG Fu FANG, YING TANG SHI, QING ZHANG YANG, DA YUAN CHEN, MIN RANG WANG, JIN SONG LI, SHAO LIANG HUANG, XIANG YIN KONG, YAO ZHOU SHI, Zm QIANG WANG, JIA HuI XIA, ZHI GAO LONG, ZHI GANG XUE, WEN XIANG DING, HuI ZHEN SHENG Center for Developmental Biology, Shanghai Second Medical University, Shanghai 200092, China Laboratory of Stem Cell Biology, Institute of Biochemistry and Cell Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, 1665 Kong Jiang Road, Shanghai 200092, China Center for Stem Cell Research, the Second Affiliated Hospital, Sun Yat-Sen University, Guangzhou 510120,China State Key Laboratory of Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, 19 Zhong-guan Cun Road, Haidian District, Beijing 100080, China Health Science Center, Shanghai Institutes of Biological Sciences, Chinese Academy of Sciences and Shanghai Second Medical University, Shanghai 200025, China National Laboratory of Medical Genetics, Central South University, 88 Xiangya Road, Changsha 410078, China Xinhua Hospital, Shanghai Second Medical University, 1665 Kong Jiang Road, Shanghai 200092, China. Cell Research. 2003(04)
[7]鱼类不同亚科间的细胞核移植[J]. 童第周,叶毓芬,陆德裕,童夙明,杜淼. 动物学报. 1973(03)
本文编号:2911033
【文章来源】:内蒙古大学内蒙古自治区 211工程院校
【文章页数】:72 页
【学位级别】:硕士
【部分图文】:
牛、小鼠IVF及NT胚胎发育率
内蒙古大学 硕士学位论文常胚胎发育过程的一系列表观修饰变化,如染色质的重构、组蛋白的替换、组蛋白的 H3K9 和 H3K27 等修饰和 DNA 甲基化等重编程修饰。这些重要的生物学事件都需要在 ZGA 之前完成。如果这些重编程过程发生异常,都会导致重构胚胎的 ZGA 失败,进而影响重构胚的发运命运。图 1.2 为 SCNT 胚胎在早期发育过程中发生的重编程分子机制,表观遗传障碍可能是导致 SCNT 胚胎效率低下的重要原因[27]。
图 2.1 体外发育的克隆胚胎A:羊-牛异种克隆 8-cell 胚胎;B:牛-牛同种克隆 8-cell 胚胎;C:牛-牛同种克隆囊胚Figure2.1 Photograph of in vitro development of SCNT embryos.A: O-B inter-species cloned 8-cell embryos, B: B-B intra-species cloned 8-cell embryos, C: B-Bintra-species cloned blastocyst.表 2.1 同种、异种克隆胚胎发育情况统计Table 2.1 Statistics of the development of intra-/inter-species cloned embryos.组别Groups胚胎数Embryos融合胚胎Fusion embryos2-cell 胚胎2-cell embryos8-cell 胚胎8-cell Embryos桑椹胚Morulae囊胚Blastocyst牛-牛 339 272 (80.2)a213 (78.3)a179 (65.8)a118 (43.4)a58 (27.2)a羊-牛 307 249 (81.1)a186 (74.7)a126 (63.3)a3 (1.2)b0b注:同一纵行的不同小写字母差异显著(P<0.05)
【参考文献】:
期刊论文
[1]受精后精子线粒体的命运与泛素-蛋白酶体通路间的关系[J]. 史文姝,金一. 中国畜牧杂志. 2015(19)
[2]抑制线粒体氧化磷酸化活性对卵子体外成熟、受精及发育的影响[J]. 葛红山,李晓和,张帆,陈华,习海涛,黄检英,朱春芳,吕杰强. 北京大学学报(医学版). 2013(06)
[3]p53非依赖性信号通路在DNA损伤致细胞凋亡中的研究进展[J]. 张潇芸,姜英,杨军. 浙江大学学报(医学版). 2013(02)
[4]MRPL48基因在代谢综合征诊断中的意义探讨[J]. 孙鲁宁,张宁,宋晓宇,郑宁宁,张海鹏. 中国全科医学. 2011(18)
[5]牛-山羊异种体细胞克隆胚胎线粒体形态超微结构观察[J]. 敬晓棋,雷安民,屈雷,窦忠英. 中国农业科学. 2010(12)
[6]Embryonic stem cells generated by nuclear transfer of human somatic nuclei into rabbit oocytes[J]. YING CHEN, ZHI Xu HE, AILIAN LIU, KAI WANG, WEN WEI MAO, JIAN XIN CHU, YONG LU, ZHENG Fu FANG, YING TANG SHI, QING ZHANG YANG, DA YUAN CHEN, MIN RANG WANG, JIN SONG LI, SHAO LIANG HUANG, XIANG YIN KONG, YAO ZHOU SHI, Zm QIANG WANG, JIA HuI XIA, ZHI GAO LONG, ZHI GANG XUE, WEN XIANG DING, HuI ZHEN SHENG Center for Developmental Biology, Shanghai Second Medical University, Shanghai 200092, China Laboratory of Stem Cell Biology, Institute of Biochemistry and Cell Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, 1665 Kong Jiang Road, Shanghai 200092, China Center for Stem Cell Research, the Second Affiliated Hospital, Sun Yat-Sen University, Guangzhou 510120,China State Key Laboratory of Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, 19 Zhong-guan Cun Road, Haidian District, Beijing 100080, China Health Science Center, Shanghai Institutes of Biological Sciences, Chinese Academy of Sciences and Shanghai Second Medical University, Shanghai 200025, China National Laboratory of Medical Genetics, Central South University, 88 Xiangya Road, Changsha 410078, China Xinhua Hospital, Shanghai Second Medical University, 1665 Kong Jiang Road, Shanghai 200092, China. Cell Research. 2003(04)
[7]鱼类不同亚科间的细胞核移植[J]. 童第周,叶毓芬,陆德裕,童夙明,杜淼. 动物学报. 1973(03)
本文编号:2911033
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