Abstract:
:Previous studies have transplanted a variety of neural stem cells (NSCs) to the eye in hopes of developing a therapy to replace retinal neurons lost to disease. Successful integration, survival, and differentiation of the cell types has been variably successful. At the moment, little is known about the fundamental biological differences between stem cell or progenitor cell types. Characterization of these differences will not only increase our general understanding of this broadly characterized group of cells, but also lead to development of criteria for sorting cells, evaluating their differentiation, and predicting their suitability for transplantation. We have used two-dimensional gel electrophoresis protein expression profiles to characterize the molecular differences between two populations of murine progenitor cells-retinal progenitor cells (RPCs) and brain progenitor cells (BPCs) isolated from mice of the same age and same genetic background. Our protein expression profiling identified 22 proteins that are differentially expressed in RPCs when compared to BPCs. Four of the differentially expressed proteins correspond to proteins known to be involved in a cellular response to stress, and analysis of potential transcription factor binding sites in the promoter regions of their genes suggests these proteins could be co-regulated at the transcriptional level. On the basis of this discovery, we tested the hypothesis that the addition of the antioxidant vitamin E would decrease the expression of the stress-response proteins and influence differentiation of RPCs. Further investigation of differences between multiple populations of RPCs and BPCs during their maintenance and differentiation will further identify fundamental differences that define 'retinal-like' characteristics and provide tools to assay the success of efforts to influence many populations of stem cells to adapt a retinal cell fate.
journal_name
Stem Cells Devjournal_title
Stem cells and developmentauthors
Dunn-Thomas TE,Dobbs DL,Sakaguchi DS,Young MJ,Honovar VG,Greenlee MHdoi
10.1089/scd.2007.0051subject
Has Abstractpub_date
2008-02-01 00:00:00pages
119-31issue
1eissn
1547-3287issn
1557-8534journal_volume
17pub_type
杂志文章abstract::Multipotent stem/progenitor cells from bone marrow stroma (mesenchymal stromal cells or MSCs) were previously shown to enhance proliferation and differentiation of neural stem cells (NSCs) in vivo, but the molecular basis of the effect was not defined. Here coculturing human MSCs (hMSCs) with rat NSCs (rNSCs) was foun...
journal_title:Stem cells and development
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abstract::Oligodendrogenesis encompasses lineage specification of neural progenitor cells (NPCs) and differentiation into oligodendrocytes that ultimately culminates in the myelination of central nervous system axons. Each individual process must be tightly regulated by extracellular and cell-intrinsic mechanisms, whose identit...
journal_title:Stem cells and development
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doi:10.1089/scd.2011.0137
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journal_title:Stem cells and development
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abstract::Traditionally, undifferentiated pluripotent human embryonic and induced pluripotent stem cells (hESCs and hiPSCs) have been expanded as monolayer colonies in adhesion culture, both in the presence or absence of feeder cells. However, the use of pluripotent stem cells poses the need to scale-up current culture methods....
journal_title:Stem cells and development
pub_type: 杂志文章
doi:10.1089/scd.2010.0517
更新日期:2011-11-01 00:00:00
abstract::Mesenchymal stems cells (MSCs) are a population of multipotent cells residing in several readily available adult tissue compartments, thus allowing for their ex vivo expansion. To date, therapeutic applications of MSCs have focused on their ability to hone to and support the repair of damaged tissues. More recent evid...
journal_title:Stem cells and development
pub_type: 杂志文章,评审
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abstract::In this study we examine whether a somatic cell, once returned to a pluripotent state, gains the ability to reprogram other somatic cells. We reprogrammed mouse embryonic fibroblasts by viral induction of oct4, sox2, c-myc, and klf-4 genes. Upon fusion of the resulting iPS cells with somatic cells harboring an Oct4-GF...
journal_title:Stem cells and development
pub_type: 杂志文章
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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
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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::Extraembryonic endoderm (XEN) cells are stem cell lines derived from primitive endoderm cells of inner cell mass in blastocysts. These cells have self-renewal properties and differentiate into visceral endoderm (VE) and parietal endoderm (PE) of the yolk sac. Recently, it has been reported that XEN cells can contribut...
journal_title:Stem cells and development
pub_type: 杂志文章
doi:10.1089/scd.2017.0026
更新日期:2017-08-01 00:00:00
abstract::Osteophytes are a distinct feature of osteoarthritis (OA). Their formation may be related to pluripotential cells in the periosteum responding to stimulus during OA. This study aimed to isolate stem cells from osteophyte tissues and to characterize their phenotype, proliferation, and differentiation potential, as well...
journal_title:Stem cells and development
pub_type: 杂志文章
doi:10.1089/scd.2007.0146
更新日期:2008-04-01 00:00:00
abstract::Progenitor expansion during development is a highly regulated process dictating the final organ size, while expansion of specific progenitor populators can adjust the final cellular composition of the organ. Understanding factors involved in these pathways is required to develop cell-based therapies such as β-cell tra...
journal_title:Stem cells and development
pub_type: 杂志文章,评审
doi:10.1089/scd.2013.0106
更新日期:2013-11-15 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::Cell therapy with adult mesenchymal stem cells (MSCs) is a promising approach to regenerative medicine and autoimmune diseases. There are various approaches to improve the efficacy of MSC-based therapeutics, and MSC preparation as spheroidal aggregates, or MSC spheroids, is a novel preparatory and delivery method. Sph...
journal_title:Stem cells and development
pub_type: 杂志文章
doi:10.1089/scd.2015.0356
更新日期:2016-04-15 00:00:00
abstract::Bone marrow mesenchymal stem cells (BMMSCs) have been used to treat a variety of autoimmune diseases in clinics. However, the therapeutic effects are largely dependent on the immunomodulatory capacity of culture-expanded BMMSCs. In the present study, we show that aspirin (acetylsalicylic acid, ASA)-treated BMMSCs have...
journal_title:Stem cells and development
pub_type: 杂志文章
doi:10.1089/scd.2014.0081
更新日期:2014-09-01 00:00:00
abstract::Since human mesenchymal stem cells (MSCs) are therapeutically attractive for tissue regeneration and repair, we examined the physiological responses of human umbilical cord blood-derived MSCs (hUCB-MSCs) to genotoxic stress. We found that that sublethal doses of reactive oxygen species (ROS) and ionizing radiation cau...
journal_title:Stem cells and development
pub_type: 杂志文章
doi:10.1089/scd.2011.0284
更新日期:2012-07-20 00:00:00
abstract::Human embryonic stem cells (hESCs) have the potential to differentiate into many adult cell types, and they are being explored as a resource for cell replacement therapies for multiple diseases. In order to optimize in vitro differentiation protocols, it will be necessary to elucidate regulatory mechanisms that contri...
journal_title:Stem cells and development
pub_type: 杂志文章
doi:10.1089/scd.2009.0224
更新日期:2010-06-01 00:00:00
abstract::Embryonic stem cells (ESCs) posses the ability to self-renew and differentiate into a multitude of lineages, including the osteogenic lineage in vitro. Currently, most approaches have focused on embryonic body (EB)-mediated osteogenic differentiation, which relies on formation of all three germ layers resulting in lim...
journal_title:Stem cells and development
pub_type: 杂志文章
doi:10.1089/scd.2007.0228
更新日期:2008-10-01 00:00:00
abstract::To better understand the basis of variation in cellular reprogramming, we performed experiments with two primary objectives: first, to determine the degree of difference, if any, in reprogramming efficiency among cells lines of a similar type after accounting for technical variables, and second, to compare the efficie...
journal_title:Stem cells and development
pub_type: 杂志文章
doi:10.1089/scd.2013.0040
更新日期:2013-10-01 00:00:00
abstract::The hedgehog (Hh) signaling pathway plays fundamental roles during embryonic development and tumorigenesis. Previously, we have shown that ablation of the tumor suppressor and negative regulator, Suppressor of fused (Sufu), within this pathway causes embryonic lethality around E9.5 in the mouse. In this study, we exam...
journal_title:Stem cells and development
pub_type: 杂志文章
doi:10.1089/scd.2015.0050
更新日期:2015-11-01 00:00:00
abstract::Small-molecule inhibitors of glycogen synthase kinase 3β (GSK3β) have demonstrated strong anti-leukemia effects in preclinical studies. Here, we investigated the effect of GSK3β inhibitor 6-Bromoindirubin-3-oxime (BIO) previously shown to inhibit leukemia cell growth in vitro and of animal models on hematopoietic rege...
journal_title:Stem cells and development
pub_type: 杂志文章
doi:10.1089/scd.2014.0230
更新日期:2015-03-15 00:00:00
abstract::Death ligands and their tumor necrosis factor receptor (TNFR) family receptors are the best-characterized and most efficient inducers of apoptotic signaling in somatic cells. In this study, we analyzed whether these prototypic activators of apoptosis are also expressed and able to be activated in human pluripotent ste...
journal_title:Stem cells and development
pub_type: 杂志文章
doi:10.1089/scd.2013.0057
更新日期:2013-11-15 00:00:00
abstract::In future, adipose-derived stem cells (ASC) might be used to treat neurological disorders. In this study, the neurotrophic and angiogenic properties of human ASC were evaluated, and their effects in a peripheral nerve injury model were determined. In vitro growth factor stimulation of the cells resulted in increased s...
journal_title:Stem cells and development
pub_type: 杂志文章
doi:10.1089/scd.2013.0396
更新日期:2014-04-01 00:00:00
abstract::Tissue engineering and cell implantation therapies are gaining popularity because of their potential to repair and regenerate tissues and organs. To investigate the role of inflammatory cytokines in new tissue development in engineered tissues, we have characterized the nature and timing of cell populations forming ne...
journal_title:Stem cells and development
pub_type: 杂志文章
doi:10.1089/scd.2012.0451
更新日期:2013-05-15 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::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
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::Retinoic acid (RA) is present at sites of neurogenesis in both the embryonic and adult brain. While it is widely accepted that RA signaling is involved in the regulation of neural stem cell differentiation, little is known about vitamin A utilization and biosynthesis of active retinoids in the neurogenic niches, or ab...
journal_title:Stem cells and development
pub_type: 杂志文章
doi:10.1089/scd.2012.0422
更新日期:2013-10-15 00:00:00
abstract::Studies on rodent bone marrow stromal cells (MSCs) have revealed a capacity, for at least a portion of cells, to express neuron-like traits after differentiation in culture. Little, however, is known about the ability of human MSCs in this regard. We show here that incubation with certain differentiation cocktails, pa...
journal_title:Stem cells and development
pub_type: 杂志文章
doi:10.1089/scd.2004.13.625
更新日期:2004-12-01 00:00:00
abstract::Hepatic ischemia reperfusion injury (IRI) remains a major obstacle in liver resection and transplantation surgery, especially in diseased organs. Human mesenchymal stromal cells (MSCs) are reported to acutely alleviate hepatic IRI in mice by releasing bioactive membrane-enclosed extracellular vesicles (EVs), but the l...
journal_title:Stem cells and development
pub_type: 杂志文章
doi:10.1089/scd.2019.0085
更新日期:2019-11-01 00:00:00
abstract::Bone marrow (BM)-derived mesenchymal stromal cells (MSCs) frequently display alterations in several hematologic disorders, such as acute lymphoid leukemia, acute myeloid leukemia (AML), and myelodysplastic syndromes. In acute leukemias, it is not clear whether MSC alterations contribute to the development of the malig...
journal_title:Stem cells and development
pub_type: 杂志文章
doi:10.1089/scd.2016.0295
更新日期:2017-05-15 00:00:00