Abstract:
:Animal cloning by nuclear transfer (NT) has made the production of transgenic animals using genetically modified donor cells possible and ensures the presence of the gene construct in the offspring. The identification of transgene insertion sites in donor cells before cloning may avoid the production of animals that carry undesirable characteristics due to positional effects. This article compares blastocyst development and competence to establish pregnancies of bovine cloned embryos reconstructed with lentivirus-mediated transgenic fibroblasts containing either random integration of a transgene (random integration group) or nuclear transfer derived transgenic fibroblasts with known transgene insertion sites submitted to recloning (recloned group). In the random integration group, eGFP-expressing bovine fetal fibroblasts were selected by fluorescence activated cell sorting (FACS) and used as nuclei donor cells for NT. In the recloned group, a fibroblast cell line derived from a transgenic cloned fetus was characterized regarding transgene insertion and submitted to recloning. The recloned group had higher blastocyst production (25.38 vs. 14.42%) and higher percentage of 30-day pregnancies (14.29 vs. 2.56%) when compared to the random integration group. Relative eGFP expression analysis in fibroblasts derived from each cloned embryo revealed more homogeneous expression in the recloned group. In conclusion, the use of cell lines recovered from transgenic fetuses after identification of the transgene integration site allowed for the production of cells and fetuses with stable transgene expression, and recloning may improve transgenic animal yields.
journal_name
Cell Reprogramjournal_title
Cellular reprogrammingauthors
Bressan FF,Dos Santos Miranda M,Perecin F,De Bem TH,Pereira FT,Russo-Carbolante EM,Alves D,Strauss B,Bajgelman M,Krieger JE,Binelli M,Meirelles FVdoi
10.1089/cell.2010.0022subject
Has Abstractpub_date
2011-02-01 00:00:00pages
29-36issue
1eissn
2152-4971issn
2152-4998journal_volume
13pub_type
杂志文章abstract::The potential applications of a simplified method of somatic cell nuclear transfer (SCNT) that is improved in both efficiency and throughput is considerable. Technically, a major step of SCNT is to produce large pools of enucleated oocytes (cytoplasts) efficiently, a process that requires considerable micromanipulatio...
journal_title:Cellular reprogramming
pub_type: 杂志文章
doi:10.1089/cell.2012.0033
更新日期:2013-02-01 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::The goals of the current study were to (1) improve culture conditions and (2) chemical passaging of bovine embryonic stem cell-like (bESC-like) cells. Specifically, the effects of human leukemia inhibitory factor (hLIF), two types of feeders, mouse embryonic fibroblast (MEF) and bovine embryonic fibroblast (BEF), as w...
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::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
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::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::Cell Stemness can be achieved by various reprogramming techniques namely, somatic cell nuclear transfer, cell fusion, cell extracts, and introduction of transcription factors from which induced pluripotent stem cells (iPSCs) are obtained. iPSCs are valuable cell sources for drug screening and human disease modeling. A...
journal_title:Cellular reprogramming
pub_type: 杂志文章
doi:10.1089/cell.2016.0008
更新日期:2016-10-01 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), 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::Chickens are vitally important in numerous countries as a primary food source and a major component of economic development. Efforts have been made to produce transgenic birds through pluripotent stem cell [primordial germ cells and embryonic stem cells (ESCs)] approaches to create animals with improved traits, such a...
journal_title:Cellular reprogramming
pub_type: 杂志文章
doi:10.1089/cell.2014.0028
更新日期:2014-10-01 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::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::Buffalo embryos were produced by hand-made cloning using skin fibroblasts from male and female buffaloes (n = 4 each) as donor cells for examining the effect of sex. Although the rate of blastocyst formation (43.8% ± 1.31% vs. 42.2% ± 1.22%) was similar, the total cell number (333 ± 10.4 vs. 270 ± 10.9) was higher (p ...
journal_title:Cellular reprogramming
pub_type: 杂志文章
doi:10.1089/cell.2015.0077
更新日期:2016-10-01 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::Adult cardiomyocytes have little ability to regenerate, thus cardiac regeneration therapy represents a potential method for treating severe heart failure. Human amniotic mesenchymal cells (hAMCs) have the potential to be a useful cell source for cardiac regeneration therapy. We attempted to isolate stem cells from hAM...
journal_title:Cellular reprogramming
pub_type: 杂志文章
doi:10.1089/cell.2012.0028
更新日期:2013-02-01 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::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::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::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::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::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::Previous studies have shown that the time interval between fusion and activation (FA interval) play an important role in nuclear remodeling and in vitro development of somatic cell nuclear transfer (SCNT) embryos. However, the effects of FA interval on the epigenetic reprogramming and in vivo developmental competence ...
journal_title:Cellular reprogramming
pub_type: 杂志文章
doi:10.1089/cell.2012.0052
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::Induced pluripotent stem cells (iPSCs) remain a promising approach to target diseases with a loss of functional parenchyma. This technology comes with a number of concerns for clinical applications, including teratogenic potential and genomic instability. Here we focused on evaluating the safety of cross-species Senda...
journal_title:Cellular reprogramming
pub_type: 杂志文章
doi:10.1089/cell.2018.0048
更新日期:2019-04-01 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::A simple, rapid, efficient, and specialized culture system was successfully developed in this study to induce human embryonic stem cells into dopaminergic neurons in vitro. It only took 5 days to generate quickly and directly a large number of homogeneous neural stem cell (NSC) spheres by the introduction of small mol...
journal_title:Cellular reprogramming
pub_type: 杂志文章
doi:10.1089/cell.2019.0037
更新日期:2019-12-01 00:00:00
abstract::The online-ahead-of print e-pub version of the article entitled, Bone Mesenchymal Stem Cell-Conditioned Medium Regulates the Differentiation of Neural Stem Cells Via Notch Pathway Activation, by Li H-M, Tong Y, Xia X, Huang J, Song P-W, Zhang R-J, Shen C-L, utilizing the DOI number 10.1089/cell.2018.0042 is being offi...
journal_title:Cellular reprogramming
pub_type: 杂志文章,收录出版
doi:10.1089/cell.2018.0042
更新日期:2018-12-27 00:00:00
abstract::The purpose of this study was to investigate the effects of the histone deacetylase (HDAC) inhibitor trichostatin A (TSA) on transgene expression and development of porcine transgenic cloned embryos, specifically focusing on effects derived from TSA-treated donor cells or TSA-treated reconstructed embryos. The results...
journal_title:Cellular reprogramming
pub_type: 杂志文章
doi:10.1089/cell.2014.0041
更新日期:2015-02-01 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::Male germline stem cells (mGSCs) are stem cells present in male testis responsible for spermatogenesis during their whole life. Studies have shown that mGSCs can be derived in vitro and resemble embryonic stem cells (ESCs) properties both in the mouse and humans. However, little is know about these cells in domestic a...
journal_title:Cellular reprogramming
pub_type: 杂志文章
doi:10.1089/cell.2010.0047
更新日期:2011-04-01 00:00:00