Abstract:
:The application of cloning technology on a large scale is limited by very low offspring rate primarily due to aberrant or incomplete epigenetic reprogramming. Trichostatin A (TSA), a histone deacetylase inhibitor, and 5-aza-2'-deoxycytidine (5-aza-dC), an inhibitor of DNA methyltransferases, are widely used for altering the epigenetic status of cloned embryos. We optimized the doses of these epigenetic modifiers for production of buffalo embryos by handmade cloning and examined whether combined treatment with these epigenetic modifiers offered any advantage over treatment with the individual epigenetic modifier. Irrespective of whether donor cells or reconstructed embryos or both were treated with 50 nM TSA +7.5 nM 5-aza-dC, (1) the blastocyst rate was significantly higher (71.6 ± 3.5, 68.3 ± 2.6, and 71.8 ± 2.4, respectively, vs. 43.1 ± 3.4 for controls, p < 0.05); (2) the apoptotic index was lower (5.4 ± 1.1, 9.5 ± 1.0, and 7.4 ± 1.3, respectively, vs. 19.5 ± 2.1 for controls, p < 0.05) and was similar to that of in vitro fertilization blastocysts (6.0 ± 0.8); (3) the global level of H3K18ac was higher (p < 0.01) and that of H3K27me3 lower (p < 0.05) than in controls and was similar among all treatment groups; and (4) the expression level of epigenetic-(HDAC1, DNMT1, and DNMT3a), pluripotency-(OCT4 and NANOG), and development-related (FGF4) genes, but not that of SOX2 and CDX2, was similar among all treatment groups. These results demonstrate that similar levels of beneficial effects can be obtained following treatment of either donor cells or reconstructed embryos or both with the combination of TSA +5-aza-dC. Therefore, there is no advantage in treating both donor cells and reconstructed embryos when the combination of TSA and 5-aza-dC is used.
journal_name
Cell Reprogramjournal_title
Cellular reprogrammingauthors
Saini M,Selokar NL,Agrawal H,Singla SK,Chauhan MS,Manik RS,Palta Pdoi
10.1089/cell.2016.0061subject
Has Abstractpub_date
2017-06-01 00:00:00pages
208-215issue
3eissn
2152-4971issn
2152-4998journal_volume
19pub_type
杂志文章abstract::Successful development of interspecies somatic cell nuclear transfer (iSCNT) embryos depends on compatibilities between ooplasmic and nuclear components. However, the mechanisms by which the compatibilities are regulated are still unknown. In this study, using mouse Oct4-green fluorescent protein (GFP) cells as donors...
journal_title:Cellular reprogramming
pub_type: 杂志文章
doi:10.1089/cell.2017.0021
更新日期:2017-12-01 00:00:00
abstract::Transgenic animal producing technology has improved consistently over the last couple of decades. Among the available methods, somatic cell nuclear transfer (SCNT) technology was officially the most popular. However, SCNT has low efficiency and requires a highly skilled individual. Additionally, the allo-SCNT nuclear ...
journal_title:Cellular reprogramming
pub_type: 杂志文章
doi:10.1089/cell.2015.0065
更新日期:2016-08-01 00:00:00
abstract::Currently, cloning efficiency in pigs is very low. Donor cell type and number of cloned embryos transferred to an individual surrogate are two major factors that affect the successful rate of somatic cell nuclear transfer (SCNT) in pigs. This study aimed to compare the influence of different donor fibroblast cell type...
journal_title:Cellular reprogramming
pub_type: 杂志文章
doi:10.1089/cell.2012.0042
更新日期:2013-02-01 00:00:00
abstract::Bovine somatic cell nuclear transfer (SCNT) using vitrified-thawed (VT) oocytes has been studied; however, the cloning efficiency of these oocytes is not comparable with that of nonvitrified (non-V) fresh oocytes. This study sought to optimize the survival and cryopreservation of VT oocytes for SCNT. Co-culture with f...
journal_title:Cellular reprogramming
pub_type: 杂志文章
doi:10.1089/cell.2014.0072
更新日期:2015-06-01 00:00:00
abstract::The less differentiated the donor cells are used in nuclear transfer (NT), the more easily are they reprogrammed by the recipient cytoplasm. In this context, mesenchymal stem cells (MSCs) appear as an alternative to donor nuclei for NT. The amniotic fluid and adipose tissue are sources of MSCs that have not been teste...
journal_title:Cellular reprogramming
pub_type: 杂志文章
doi:10.1089/cell.2015.0064
更新日期:2016-04-01 00:00:00
abstract::Although numerous mammalian species have been successfully cloned by somatic cell nuclear transfer (SCNT), little is known about gene expression of cloned pigs by SCNT. In the present study, expression profiles of 1-month-old cloned pigs generated from fetal fibroblasts (n = 5) were compared to those of age-matched co...
journal_title:Cellular reprogramming
pub_type: 杂志文章
doi:10.1089/cell.2010.0088
更新日期:2011-06-01 00:00:00
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journal_title:Cellular reprogramming
pub_type: 杂志文章
doi:10.1089/cell.2009.0049
更新日期:2010-04-01 00:00:00
abstract::Demecolcine-assisted/induced enucleation has been used in nuclear transfer cloning procedures for many species, yet its mechanism of action remains unclear. Primarily because oocytoplasm protrusion induced by demecolcine is inhibited by the presence of cytochalasin, its use has had limited application. In this experim...
journal_title:Cellular reprogramming
pub_type: 杂志文章
doi:10.1089/cell.2011.0012
更新日期:2011-10-01 00:00:00
abstract::Factor-induced reprogramming of somatic cells into induced pluripotent stem cells (iPSCs) as a powerful tool for regenerative medicine has gained wide attention in recent years. However, there are certain concerns regarding the efficiency of this reprogramming. Partially reprogrammed iPSCs (piPSCs) are stable cell lin...
journal_title:Cellular reprogramming
pub_type: 杂志文章
doi:10.1089/cell.2019.0083
更新日期:2020-04-01 00:00:00
abstract::Methyl-CpG-binding domain proteins (MBPs) connect DNA methylation and histone modification, which are the key changes of somatic cell reprogramming. Methyl-CpG-binding protein 2 (MeCP2) was the first discovered MBP that has been extensively studied in the neurodevelopmental disorder Rett syndrome. However, a role for ...
journal_title:Cellular reprogramming
pub_type: 杂志文章
doi:10.1089/cell.2015.0060
更新日期:2016-04-01 00:00:00
abstract::As man's best friend, dogs have an important position in human society. Ten years ago, we reported the first cloned dog, and his birth has raised various scientific issues, such as those related to health, reproduction, and life span. He has developed without any unique health issues. In this article, we summarize and...
journal_title:Cellular reprogramming
pub_type: 杂志文章
doi:10.1089/cell.2015.0033
更新日期:2015-10-01 00:00:00
abstract::Induced pluripotent stem cell (iPSC) technology has become an important tool for disease modeling. Insufficient data on the variability among iPSC lines derived from a single somatic parental cell line have in practice led to generation and analysis of several, usually three, iPSC sister lines from each parental cell ...
journal_title:Cellular reprogramming
pub_type: 杂志文章
doi:10.1089/cell.2015.0009
更新日期:2015-10-01 00:00:00
abstract::Genetically modified pigs are commonly created via somatic cell nuclear transfer (SCNT). Treatment of reconstructed embryos with histone deacetylase inhibitors (HDACi) immediately after activation improves cloning efficiency. The objective of this experiment was to evaluate the transcriptome of SCNT embryos treated wi...
journal_title:Cellular reprogramming
pub_type: 杂志文章
doi:10.1089/cell.2015.0022
更新日期:2015-08-01 00:00:00
abstract::Methyl-CpG-binding domain protein 3 (MBD3) is a core component of the nucleosome remodeling and deacetylase (NuRD) complex, which is crucial for pluripotent stem cell differentiation and embryonic development. MBD3 was shown to play important roles in transcription factor-induced somatic cell reprogramming. Expression...
journal_title:Cellular reprogramming
pub_type: 杂志文章
doi:10.1089/cell.2019.0008
更新日期:2019-10-01 00:00:00
abstract::Somatic cell nuclear transfer (SCNT), commonly referred to as cloning, results in the generation of offspring that, except for mitochondrial DNA, are genetically identical to the nuclear donor. We previously used a genetically modified bovine cell line as the donor for SCNT and obtained a calf, named Daisy, that was b...
journal_title:Cellular reprogramming
pub_type: 杂志文章
doi:10.1089/cell.2017.0018
更新日期:2017-12-01 00:00:00
abstract::Epithelial-to-mesenchymal transition (EMT) and endothelial-to-mesenchymal transition (EndMT) describe complex changes in progenitor lineage, cell morphology, and gene expression. Stimulated by environmental cues, these cellular transitions are essential for elements of embryonic development and can be pathologically d...
journal_title:Cellular reprogramming
pub_type: 杂志文章,评审
doi:10.1089/cell.2012.0054
更新日期:2013-04-01 00:00:00
abstract::The differentiation of multipotent stem cells toward a pancreatic lineage provides us with an alternative cell-based therapeutic approach to type 1 diabetes and enables us to study pancreas development. The current study aims to study the effect of growth factors such as activin A or nicotinamide, alone and in combina...
journal_title:Cellular reprogramming
pub_type: 杂志文章
doi:10.1089/cell.2016.0043
更新日期:2017-08-01 00:00:00
abstract::The generation of induced pluripotent stem cells (iPSCs) from somatic cells by expressing ectopic reprogramming transcriptional factors such as Oct3/4, Sox2, Klf4, c-Myc, and Nanog is one of the cutting-edge discoveries in stem cell and cancer research. This discovery has raised several safety issues regarding the use...
journal_title:Cellular reprogramming
pub_type: 杂志文章,评审
doi:10.1089/cell.2013.0077
更新日期:2014-04-01 00:00:00
abstract::In this study, we found that the measles virus (MV) can infect human-induced pluripotent stem cells (hiPSCs). Wild-type MV strains generally use human signaling lymphocyte activation molecule (SLAM; CD150) as a cellular receptor, while vaccine strains such as the Edmonston strain can use both CD150 and CD46 as recepto...
journal_title:Cellular reprogramming
pub_type: 杂志文章
doi:10.1089/cell.2017.0034
更新日期:2018-02-01 00:00:00
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journal_title:Cellular reprogramming
pub_type: 杂志文章,评审
doi:10.1089/cell.2013.0032
更新日期:2013-10-01 00:00:00
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journal_title:Cellular reprogramming
pub_type: 杂志文章
doi:10.1089/cell.2016.0042
更新日期:2017-08-01 00:00:00
abstract::The development of embryos produced by somatic cell nuclear transfer (SCNT) using vitrified oocytes as cytoplast recipients has been reported in cattle but not in sheep. This study investigated the parthenogenetic development of ovine oocytes vitrified and thawed at the germinal vesicle (GV) stage, matured in vitro, a...
journal_title:Cellular reprogramming
pub_type: 杂志文章
doi:10.1089/cell.2010.0089
更新日期:2011-08-01 00:00:00
abstract::Skin-derived progenitors (SKP) are neural crest derived and can generate neural and mesodermal progeny in vitro, corresponding to the multipotency of neural crest stem cells. Likewise, neural stem/progenitor cells (displaying as neurospheres) have the capacity of self-renewing, and can produce most phenotypes in the n...
journal_title:Cellular reprogramming
pub_type: 杂志文章
doi:10.1089/cell.2009.0116
更新日期:2010-06-01 00:00:00
abstract::The generation of human induced pluripotent stem cells (hiPSCs) derived from an autologous extraembryonic fetal source is an innovative personalized regenerative technology that can transform own-self cells into embryonic stem-like ones. These cells are regarded as a promising candidate for cell-based therapy, as well...
journal_title:Cellular reprogramming
pub_type: 杂志文章
doi:10.1089/cell.2015.0003
更新日期:2015-08-01 00:00:00
abstract::Somatic cell nuclear transfer (SCNT) success is partially hindered by the low epigenetic reprogramming efficiency of the donor cell. Previous studies suggest cellular heterogeneity among donor nuclei in regard to reprogramming potential, which precludes comparison among different strategies to increase cloning success...
journal_title:Cellular reprogramming
pub_type: 杂志文章
doi:10.1089/cell.2016.0063
更新日期:2017-10-01 00:00:00
abstract::Adipose tissue-derived stromal cells (ADSCs) have been identified as a powerful stem cell source for cellular transplantation therapy. The dog is increasingly used as a model of human neurological disease; however, few studies have reported induction of canine ADSCs to neural lineages. We characterized canine ADSCs an...
journal_title:Cellular reprogramming
pub_type: 杂志文章
doi:10.1089/cell.2009.0093
更新日期:2010-08-01 00:00:00
abstract::Abstract Professor Keith Campbell's critical contribution to the discovery that a somatic cell from an adult animal can be fully reprogrammed by oocyte factors to form a cloned individual following nuclear transfer (NT)(Wilmut et al., 1997 ) overturned a dogma concerning the reversibility of cell fate that many scient...
journal_title:Cellular reprogramming
pub_type: 传,历史文章,杂志文章
doi:10.1089/cell.2013.0038
更新日期:2013-10-01 00:00:00
abstract::Various diseases, injuries, and congenital abnormalities may result in degeneration and loss of organs and tissues. Recently, tissue engineering has offered new treatment options for these common, severe, and costly problems in human health care. Its application is often based on the usage of differentiated stem cells...
journal_title:Cellular reprogramming
pub_type: 杂志文章
doi:10.1089/cell.2014.0005
更新日期:2014-08-01 00:00:00
abstract::Induced pluripotent stem cells (iPSCs) have an extensive application in regenerative medicine, pharmaceutical discovery, and basic research. With the recent derivation of rat iPSCs, it is now feasible to apply genetic manipulation in this species. But such tools do not yet exist for many rat strains, especially for di...
journal_title:Cellular reprogramming
pub_type: 杂志文章
doi:10.1089/cell.2016.0028
更新日期:2017-06-01 00:00:00
abstract::Induced pluripotent stem cells (iPSCs) are promising candidates for the study of disease models as well as for tissue engineering purposes. Part of a strategy to develop safe reprogramming technique is reducing the number of exogenous reprogramming factors. Some cells types are more prone to reprogramming than others....
journal_title:Cellular reprogramming
pub_type: 杂志文章
doi:10.1089/cell.2014.0018
更新日期:2014-10-01 00:00:00