Quisinostat treatment improves histone acetylation and developmental competence of porcine somatic cell nuclear transfer embryos. 2017

Long Jin, and Qing Guo, and Hai-Ying Zhu, and Xiao-Xu Xing, and Guang-Lei Zhang, and Mei-Fu Xuan, and Qi-Rong Luo, and Zhao-Bo Luo, and Jun-Xia Wang, and Xi-Jun Yin, and Jin-Dan Kang

Abnormal epigenetic modifications are considered a main contributing factor to low cloning efficiency. In the present study, we explored the effects of quisinostat, a novel histone deacetylase inhibitor, on blastocyst formation rate in porcine somatic-cell nuclear transfer (SCNT) embryos, on acetylation of histone H3 lysine 9 (AcH3K9), and on expression of POU5F1 protein and apoptosis-related genes BAX and BCL2. Our results showed that treatment with 10 nM quisinostat for 24 hr significantly improved the development of reconstructed embryos compared to the untreated group (19.0 ± 1.6% vs. 10.2 ± 0.9%; p < 0.05). Quisinostat-treated SCNT embryos also possessed significantly increased AcH3K9 at the pseudo-pronuclear stage (p < 0.05), as well as improved immunostaining intensity for POU5F1 at the blastocyst stage (p < 0.05). While no statistical difference in BAX expression was observed, BCL2 transcript abundance was significantly different in the quisinostat-treated compared to the untreated control group. Of the 457 quisinostat-treated cloned embryos transferred into three surrogates, six fetuses developed from the one sow that became pregnant. These findings suggested that quisinostat can regulate gene expression and epigenetic modification, facilitating nuclear reprogramming, and subsequently improving the developmental competence of pig SCNT embryos and blastocyst quality.

UI MeSH Term Description Entries
D004622 Embryo, Mammalian The entity of a developing mammal (MAMMALS), generally from the cleavage of a ZYGOTE to the end of embryonic differentiation of basic structures. For the human embryo, this represents the first two months of intrauterine development preceding the stages of the FETUS. Embryonic Structures, Mammalian,Mammalian Embryo,Mammalian Embryo Structures,Mammalian Embryonic Structures,Embryo Structure, Mammalian,Embryo Structures, Mammalian,Embryonic Structure, Mammalian,Embryos, Mammalian,Mammalian Embryo Structure,Mammalian Embryonic Structure,Mammalian Embryos,Structure, Mammalian Embryo,Structure, Mammalian Embryonic,Structures, Mammalian Embryo,Structures, Mammalian Embryonic
D006877 Hydroxamic Acids A class of weak acids with the general formula R-CONHOH. Hydroxamic Acid,Acid, Hydroxamic,Acids, Hydroxamic
D000107 Acetylation Formation of an acetyl derivative. (Stedman, 25th ed) Acetylations
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D013552 Swine Any of various animals that constitute the family Suidae and comprise stout-bodied, short-legged omnivorous mammals with thick skin, usually covered with coarse bristles, a rather long mobile snout, and small tail. Included are the genera Babyrousa, Phacochoerus (wart hogs), and Sus, the latter containing the domestic pig (see SUS SCROFA). Phacochoerus,Pigs,Suidae,Warthogs,Wart Hogs,Hog, Wart,Hogs, Wart,Wart Hog
D044127 Epigenesis, Genetic A genetic process by which the adult organism is realized via mechanisms that lead to the restriction in the possible fates of cells, eventually leading to their differentiated state. Mechanisms involved cause heritable changes to cells without changes to DNA sequence such as DNA METHYLATION; HISTONE modification; DNA REPLICATION TIMING; NUCLEOSOME positioning; and heterochromatization which result in selective gene expression or repression. Epigenetic Processes,Epigenetic Process,Epigenetics Processes,Genetic Epigenesis,Process, Epigenetic,Processes, Epigenetic,Processes, Epigenetics
D050814 Octamer Transcription Factor-3 An octamer transcription factor that is expressed primarily in totipotent embryonic STEM CELLS and GERM CELLS and is down-regulated during CELL DIFFERENTIATION. Oct-3 Transcription Factor,Transcription Factor Oct-3,Oct-4 Transcription Factor,Octamer-Binding Protein 4,POU Domain, Class 5, Transcription Factor 1,POU5F1 Transcription Factor,Transcription Factor Oct-4,Oct 3 Transcription Factor,Oct 4 Transcription Factor,Oct-3, Transcription Factor,Oct-4, Transcription Factor,Octamer Binding Protein 4,Octamer Transcription Factor 3,Transcription Factor Oct 3,Transcription Factor Oct 4,Transcription Factor, Oct-3,Transcription Factor, Oct-4,Transcription Factor, POU5F1,Transcription Factor-3, Octamer
D051028 bcl-2-Associated X Protein A member of the Bcl-2 protein family and homologous partner of C-BCL-2 PROTO-ONCOGENE PROTEIN. It regulates the release of CYTOCHROME C and APOPTOSIS INDUCING FACTOR from the MITOCHONDRIA. Several isoforms of BCL2-associated X protein occur due to ALTERNATIVE SPLICING of the mRNA for this protein. Bax Protein,Bax-alpha Protein,Bax-omega Protein,Bax-sigma Protein,Bax Apoptosis Regulator Protein,Bax-beta Protein,Bax-delta Protein,bcl2-Associated X Protein,bcl2-Associated X Protein Isoform alpha,bcl2-Associated X Protein Isoform beta,bcl2-Associated X Protein Isoform delta,bcl2-Associated X Protein Isoform omega,bcl2-Associated X Protein Isoform sigma,Bax alpha Protein,Bax beta Protein,Bax delta Protein,Bax omega Protein,Bax sigma Protein,Protein, bcl-2-Associated X,X Protein, bcl-2-Associated,bcl 2 Associated X Protein,bcl2 Associated X Protein,bcl2 Associated X Protein Isoform alpha,bcl2 Associated X Protein Isoform beta,bcl2 Associated X Protein Isoform delta,bcl2 Associated X Protein Isoform omega,bcl2 Associated X Protein Isoform sigma
D053652 Nuclear Transfer Techniques Methods of implanting a CELL NUCLEUS from a donor cell into an enucleated acceptor cell. Nuclear Transplantation,Somatic Cell Nuclear Transfer Technique,Nuclear Transfer Technique,Transplantation, Nuclear
D018507 Gene Expression Regulation, Developmental Any of the processes by which nuclear, cytoplasmic, or intercellular factors influence the differential control of gene action during the developmental stages of an organism. Developmental Gene Expression Regulation,Embryologic Gene Expression Regulation,Gene Expression Regulation, Embryologic,Regulation of Gene Expression, Developmental,Regulation of Gene Expression, Embryologic,Regulation, Gene Expression, Developmental,Regulation, Gene Expression, Embryologic

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