Abstract:
:There is surprising confusion surrounding the concept of biological totipotency, both within the scientific community and in society at large. Increasingly, ethical objections to scientific research have both practical and political implications. Ethical controversy surrounding an area of research can have a chilling effect on investors and industry, which in turn slows the development of novel medical therapies. In this context, clarifying precisely what is meant by "totipotency" and how it is experimentally determined will both avoid unnecessary controversy and potentially reduce inappropriate barriers to research. Here, the concept of totipotency is discussed, and the confusions surrounding this term in the scientific and nonscientific literature are considered. A new term, "plenipotent," is proposed to resolve this confusion. The requirement for specific, oocyte-derived cytoplasm as a component of totipotency is outlined. Finally, the implications of twinning for our understanding of totipotency are discussed.
journal_name
Stem Cells Devjournal_title
Stem cells and developmentauthors
Condic MLdoi
10.1089/scd.2013.0364subject
Has Abstractpub_date
2014-04-15 00:00:00pages
796-812issue
8eissn
1547-3287issn
1557-8534journal_volume
23pub_type
杂志文章abstract::Multipotent mesenchymal stromal cells (MSCs) are more and more frequently used to treat orthopedic injuries in horses. However, these cells are limited in their expandability and differentiation capacity. Recently, the first equine-induced pluripotent stem cell (iPSC) lines were reported by us [ 1 ]. In vitro differen...
journal_title:Stem cells and development
pub_type: 杂志文章
doi:10.1089/scd.2014.0409
更新日期:2016-01-01 00:00:00
abstract::Lifelong neurogenesis in the mouse olfactory epithelium (OE) is regulated by the response of stem/progenitor cells to local signals, but embryonic and adult OE progenitors appear to be quite different--with potentially different mechanisms of regulation. A recently identified progenitor unique to embryonic OE--the nes...
journal_title:Stem cells and development
pub_type: 杂志文章
doi:10.1089/scd.2012.0406
更新日期:2013-02-15 00:00:00
abstract::Remyelination is the goal of potential cell transplantation therapies for demyelinating diseases and other central nervous system injuries. Transplantation of oligodendrocyte precursor cells (OPCs) can result in remyelination in the central nervous system, and induced pluripotent stem cells (iPSCs) are envisioned to b...
journal_title:Stem cells and development
pub_type: 杂志文章
doi:10.1089/scd.2015.0244
更新日期:2016-05-01 00:00:00
abstract::Subarachnoid hemorrhage (SAH) is a type of hemorrhagic stroke with significant morbidity and mortality, and it often leads to poor clinical outcome. Although great efforts have been made toward animal and clinical studies, optimal therapy of SAH remains a challenge for scientists and clinicians. Increasing evidence su...
journal_title:Stem cells and development
pub_type: 杂志文章
doi:10.1089/scd.2019.0219
更新日期:2020-02-15 00:00:00
abstract::Pluripotent human embryonic stem cells (hESCs) provide appropriate systems for developmental studies and prospective donor cell sources for regenerative medicine. Identification of surface markers specific to hESCs is a prerequisite for studying hESC biology and can be used to generate clinical-level donor cell prepar...
journal_title:Stem cells and development
pub_type: 杂志文章
doi:10.1089/scd.2010.0265
更新日期:2011-04-01 00:00:00
abstract::Tumor necrosis factor-α (TNF-α) has multiple effects on proliferation and differentiation of human mesenchymal stem cells. Transforming growth factor-activated kinase-1 (TAK1) mediates the activation of nuclear factor-kappa B (NF-κB), c-Jun N-terminal kinase (JNK), and p38 pathways in response to TNF-α. However, the r...
journal_title:Stem cells and development
pub_type: 杂志文章
doi:10.1089/scd.2014.0272
更新日期:2015-04-01 00:00:00
abstract::Transplantation of retinal cells has recently provided a promising therapeutic approach for retinal degeneration. Here, we differentiated initially retinal progenitors (RPs) from adherent feeder-free human embryonic stem cells (hESCs) with the use of defined media supplemented with a specific combination of growth fac...
journal_title:Stem cells and development
pub_type: 杂志文章
doi:10.1089/scd.2011.0073
更新日期:2012-01-01 00:00:00
abstract::Bronchopulmonary dysplasia (BPD), the main complication of extreme prematurity, has lifelong consequences for lung health. Mesenchymal stromal cells (MSCs) prevent lung injury in experimental BPD in newborn rodents when given in the immediate neonatal period. Whether MSC therapy can restore normal lung growth after es...
journal_title:Stem cells and development
pub_type: 杂志文章
doi:10.1089/scd.2019.0116
更新日期:2020-03-15 00:00:00
abstract::Balanced and precisely controlled processes between self-renewal and differentiation of hematopoietic stem cells (HSCs) into all blood lineages are critical for vertebrate definitive hematopoiesis. However, the molecular mechanisms underlying the maintenance and differentiation of HSCs have not been fully elucidated. ...
journal_title:Stem cells and development
pub_type: 杂志文章
doi:10.1089/scd.2012.0623
更新日期:2013-09-15 00:00:00
abstract::In the past few years research on stem cells has exploded as a tool to develop potential therapies to treat incurable neurodegenerative diseases. Stem cell transplantation has been effective in several animal models, but the underlying restorative mechanisms are still unknown. Several events such as cell fusion, neuro...
journal_title:Stem cells and development
pub_type: 杂志文章,评审
doi:10.1089/154732804773099326
更新日期:2004-02-01 00:00:00
abstract::Non-tumorous liver tissue removed during surgery to resect hepatocellular carcinoma (HCC) is potentially a useful source of material from which cells, particularly liver progenitor/stem cells (LPCs), can be isolated to establish cell lines. The purpose of this study was to evaluate the applicability of the "plate-and-...
journal_title:Stem cells and development
pub_type: 杂志文章
doi:10.1089/scd.2009.0304
更新日期:2010-08-01 00:00:00
abstract::The mental retardation-associated protein, srGAP3 is highly expressed in neurogenic sites. It is thought to regulate the key aspects of neuronal development and functions. Little is known about the interaction between srGAP3 and immature neural stem cells/neural progenitor cells (NSCs/NPCs). In the current study, the ...
journal_title:Stem cells and development
pub_type: 杂志文章
doi:10.1089/scd.2012.0455
更新日期:2013-06-01 00:00:00
abstract::Fertility clinics worldwide routinely produce a large volume of 'waste' follicular aspirate, which is potentially an abundant source of immature ovarian follicles. Current attempts to cultivate these further in vitro to yield viable mature oocytes for fertility treatment have not yet achieved much success. Instead, re...
journal_title:Stem cells and development
pub_type: 杂志文章
doi:10.1089/scd.2005.14.11
更新日期:2005-02-01 00:00:00
abstract::Pluripotent stem cell-derived endothelial cells (ECs) have great potential to be used in vascular therapy or tissue engineering. It is also much desired to obtain arterial or venous ECs for specific applications. Factors that are critical for the proper arterial or venous differentiation from pluripotent stem cells st...
journal_title:Stem cells and development
pub_type: 杂志文章
doi:10.1089/scd.2017.0240
更新日期:2018-04-01 00:00:00
abstract::We determined whether cartilage could be engineered from mesenchymal progenitor cells (MPCs) normally found in amniotic fluid. Mesenchymal amniocytes were isolated from ovine amniotic fluid samples (n = 5) and had their identity confirmed by immunocytochemistry. Cells were expanded and then cultured as micromass pelle...
journal_title:Stem cells and development
pub_type: 杂志文章
doi:10.1089/scd.2006.15.245
更新日期:2006-04-01 00:00:00
abstract::Regenerative medicine, a paragon of future healthcare, holds unprecedented potential in extending the reach of treatment modalities for individuals across diseases and lifespan. Emerging regenerative technologies, focused on structural repair and functional restoration, signal a radical transformation in medical and s...
journal_title:Stem cells and development
pub_type: 杂志文章
doi:10.1089/scd.2013.0448
更新日期:2013-12-01 00:00:00
abstract::Stem cell-based therapy is a promising treatment for neurodegenerative diseases. In our laboratory, a novel protocol has been developed to induce bone marrow-derived mesenchymal stem cells (MSC) into neurotrophic factors- secreting cells (NTF-SC), thus combining stem cell-based therapy with the NTF-based neuroprotecti...
journal_title:Stem cells and development
pub_type: 杂志文章
doi:10.1089/scd.2008.0411
更新日期:2009-10-01 00:00:00
abstract::A murine stromal cell line (OP9-DL1) expressing a notch ligand, Delta-like-1, has been shown to be able to drive the differentiation of both murine and human hematopoietic progenitors into T cells in vitro. Further studies showed that hematopoietic progenitors transduced by a retroviral vector to express a human CD8 T...
journal_title:Stem cells and development
pub_type: 杂志文章
doi:10.1089/scd.2008.0021
更新日期:2009-03-01 00:00:00
abstract::Ex vivo cultures of human bone marrow-derived mesenchymal stem cells (MSCs) contain subsets of progenitors exhibiting dissimilar properties. One of these subsets comprises uncommitted progenitors displaying distinctive features, such as morphology, a quiescent condition, growth factor production, and restricted tissue...
journal_title:Stem cells and development
pub_type: 杂志文章
doi:10.1089/scd.2005.14.408
更新日期:2005-08-01 00:00:00
abstract::Fluorescence in situ hybridization (FISH) was used to analyze peripheral blood stem cells (PBSC) and stem cell assays (SCA) derived from them in 2 patients with acute myeloid leukemia (AML) with trisomy 8 as the sole chromosome abnormality prior to undergoing autologous stem cell transplantation. In both cases, the de...
journal_title:Stem cells and development
pub_type: 杂志文章
doi:10.1089/154732804773099227
更新日期:2004-02-01 00:00:00
abstract::Allogeneic stem cell (SC)-based therapy is a promising tool for the treatment of a range of human degenerative and inflammatory diseases. Many reports highlighted the immune modulatory properties of some SC types, such as mesenchymal stromal cells (MSCs), but a comparative study with SCs of different origin, to assess...
journal_title:Stem cells and development
pub_type: 杂志文章
doi:10.1089/scd.2013.0204
更新日期:2013-11-15 00:00:00
abstract::Induced pluripotent stem cells (iPSCs) are somatic cells that have been reprogrammed to a pluripotent state via introduction of defined transcription factors. iPSCs are a valuable resource for regenerative medicine, but whether iPSCs are identical to embryonic stem cells (ESCs) remains unclear. In this study, we perfo...
journal_title:Stem cells and development
pub_type: 杂志文章
doi:10.1089/scd.2011.0243
更新日期:2012-05-20 00:00:00
abstract::Vascular smooth muscle cells (SMCs), which arise from multiple embryonic progenitors, have unique lineage-specific properties and this diversity may contribute to spatial patterns of vascular diseases. We developed in vitro methods to generate distinct vascular SMC subtypes from human pluripotent stem cells, allowing ...
journal_title:Stem cells and development
pub_type: 杂志文章
doi:10.1089/scd.2014.0520
更新日期:2015-04-01 00:00:00
abstract::Adipose tissue (AT) is composed of mature adipocytes and stromal vascular fraction (SVF) cells, including adipose stem/stromal cells (ASCs). We characterized hematopoietic cells residing in human nonobese AT by analyzing the SVF isolated from human lipoaspirates and peripheral blood (PB). Flow cytometry revealed that ...
journal_title:Stem cells and development
pub_type: 杂志文章
doi:10.1089/scd.2012.0442
更新日期:2013-03-15 00:00:00
abstract::In a previous study we established colony assays suitable for studying murine adult (2-4 months) pancreatic progenitor cells plated in semisolid media containing methylcellulose and extracellular matrix proteins. Using these assays, we found robust in vitro progenitor cell activities (multilineage differentiation and ...
journal_title:Stem cells and development
pub_type: 杂志文章
doi:10.1089/scd.2013.0466
更新日期:2014-04-15 00:00:00
abstract::Multipotent mesenchymal stem/stromal cells (MSCs) are strongly involved in tissue homeostasis mainly through paracrine regulation. In this study, we examined the influence of simulated microgravity on the angiogenic potential of adipose-derived MSCs (ASCs). The conditioned medium (CM) from random positioning machine (...
journal_title:Stem cells and development
pub_type: 杂志文章
doi:10.1089/scd.2017.0262
更新日期:2018-06-15 00:00:00
abstract::Pericytes play a crucial role in angiogenesis and vascular maintenance. They can be readily identified in vivo and isolated as CD146(+)CD34(-) cells from various tissues. Whether these and other markers reliably identify pericytes in vitro is unclear. CD146(+)CD34(-) selected cells exhibit multilineage potential. Thus...
journal_title:Stem cells and development
pub_type: 杂志文章
doi:10.1089/scd.2012.0415
更新日期:2013-09-01 00:00:00
abstract::Recent evidence shows that amniotic fluid (AF) contains multiple cell types derived from the developing fetus, and may represent a novel source of stem cells for cell therapy. In this study, we examined the paracrine factors released by human amniotic fluid-derived mesenchymal stem cells (AF-MSCs) and their ability to...
journal_title:Stem cells and development
pub_type: 杂志文章
doi:10.1089/scd.2009.0138
更新日期:2010-06-01 00:00:00
abstract::In the central nervous system (CNS), generation of phenotypic diversity within the neuronal lineage is precisely regulated in a spatial and temporal fashion. Neural basic helix-loop-helix (bHLH) transcription factors are cell intrinsic factors that control commitment to neuronal lineage and play an important role in n...
journal_title:Stem cells and development
pub_type: 杂志文章
doi:10.1089/scd.2006.0115
更新日期:2007-08-01 00:00:00
abstract::A long-term goal of mesenchymal progenitor cell (MPC) research is to identify cell-surface markers to facilitate MPC isolation. One reported MPC feature in humans and other species is lack of CD14 (lipopolysaccharide receptor) expression. The aim of this study was to evaluate CD14 as an MPC sorting marker. Our hypothe...
journal_title:Stem cells and development
pub_type: 杂志文章
doi:10.1089/scd.2010.0175
更新日期:2011-04-01 00:00:00