Abstract:
:The central role of calcium influx and electrical activity in embryonic development raises important questions about the role and regulation of voltage-dependent calcium influx. Using cultured neural progenitor cell (NPC) preparations, we recorded barium currents through voltage-activated channels using the whole-cell configuration of the patch-clamp technique and monitored intracellular free calcium concentrations with Fura-2 digital imaging. We found that NPCs as well as expressing high-voltage-activated (HVA) calcium channels express functional low-threshold voltage-dependent calcium channels in the very early stages of differentiation (5 h to 1 day). The size of the currents recorded at -50 versus -20 mV after 1 day in differentiation was dependent on the nature of the charge carrier. Peak currents measured at -20 mV in the presence 10 mM Ca2+ instead of 10 mM Ba2+ had a tendency to be smaller, whereas the nature of the divalent species did not influence the amplitude measured at -50 mV. The T-type channel blockers mibefradil and NNC 55-0396 significantly reduced the calcium responses elicited by depolarizing with extracellular potassium, while the overall effect of the HVA calcium channel blockers was small at differentiation day 1. At differentiation day 20, the calcium responses were effectively blocked by nifedipine. Time-lapse imaging of differentiating neurospheres cultured in the presence of low-voltage-activated (LVA) blockers showed a significant decrease in the number of active migrating neuron-like cells and neurite extensions. Together, these data provide evidence that LVA calcium channels are involved in the physiology of differentiating and migrating NPCs.
journal_name
Stem Cells Devjournal_title
Stem cells and developmentauthors
Louhivuori LM,Louhivuori V,Wigren HK,Hakala E,Jansson LC,Nordström T,Castrén ML,Akerman KEdoi
10.1089/scd.2012.0234subject
Has Abstractpub_date
2013-04-15 00:00:00pages
1206-19issue
8eissn
1547-3287issn
1557-8534journal_volume
22pub_type
杂志文章abstract::The corneal endothelium is believed to be developmentally originated from the periocular mesenchyme via the neural crest. Human corneal endothelial progenitor cells (HCEPs) have been investigated because of their potential availability for the tissue regenerative medicine. However, the existence and the properties of ...
journal_title:Stem cells and development
pub_type: 杂志文章
doi:10.1089/scd.2013.0387
更新日期:2014-09-15 00:00:00
abstract::Protein tyrosine phosphatases have been recognized as critical components of multiple signaling regulators of fundamental cellular processes, including differentiation, cell death, and migration. In this study, we show that dual specificity phosphatase 4 (DUSP4) is crucial for neuronal differentiation and functions in...
journal_title:Stem cells and development
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journal_title:Stem cells and development
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doi:10.1089/scd.2015.0317
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abstract::Human umbilical cord blood (CB) has been used successfully in stem cell transplantation. A subpopulation of CD34(+) cells expresses chemokine receptor CXCR4 which is critical for bone marrow engraftment in human hematopoietic stem cells. Here, we demonstrate the effect of short-term culture on CXCR4 expression on umbi...
journal_title:Stem cells and development
pub_type: 杂志文章
doi:10.1089/scd.2008.0298
更新日期:2009-10-01 00:00:00
abstract::The difficulty in long-term expansion of mesenchymal stem cells (MSCs) using standard culture systems without the loss of their stem cell properties suggests that a critical feature of their microenvironment necessary for retention of stem cell properties is absent in these culture systems. We report here the reconsti...
journal_title:Stem cells and development
pub_type: 杂志文章
doi:10.1089/scd.2009.0217
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abstract::CD41 (αIIb integrin), a specific marker for megakaryocytes and platelets, was recently shown to mark the initiation of definitive hematopoiesis in mouse embryos. However, whether embryonic CD41(+) populations have a nonhematopoietic potential remains elusive. Here, we report that the CD41(+) cells from the mouse E11.0...
journal_title:Stem cells and development
pub_type: 杂志文章
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abstract::The activation and transcriptional activity of signal transducer and activator of transcription 3 (STAT3) is essential for maintaining mouse embryonic stem (ES) cell cultures in an undifferentiated state. However, reports from human and monkey ES-cell culture suggest that STAT3 is dispensable for pluripotency in these...
journal_title:Stem cells and development
pub_type: 杂志文章
doi:10.1089/scd.2007.0262
更新日期:2009-01-01 00:00:00
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journal_title:Stem cells and development
pub_type: 杂志文章
doi:10.1089/scd.2014.0503
更新日期:2015-05-01 00:00:00
abstract::In this work, we evaluated the expansion of human hematopoietic stem cells from umbilical cord blood in roller bottles. The Iscove's modified Dulbecco's medium, the Stem Pro 34-SFM medium, and the L-15 Leibovitz's medium for cultures in CO(2)-free atmosphere were assessed. At day 5 of culture, total colony forming uni...
journal_title:Stem cells and development
pub_type: 杂志文章
doi:10.1089/scd.2010.0236
更新日期:2011-04-01 00:00:00
abstract::There are a limited number of therapies available to prevent heart failure following myocardial infarction. One novel therapy that is currently being pursued is the implantation of cardiac progenitor cells (CPCs); however, their responses to oxidative stress during differentiation have yet to be elucidated. The object...
journal_title:Stem cells and development
pub_type: 杂志文章
doi:10.1089/scd.2012.0673
更新日期:2013-09-01 00:00:00
abstract::Tumor necrosis factor-related apoptosis-inducing ligand (TRAIL) has been used extensively in cancer therapy. However, more than half of glioblastoma multiforme are insensitive to the apoptotic effect of TRAIL. Improvement in therapeutic modalities that enhances the efficacy of TRAIL in glioma is much sought after. In ...
journal_title:Stem cells and development
pub_type: 杂志文章
doi:10.1089/scd.2012.0529
更新日期:2013-07-01 00:00:00
abstract::Epoxyeicosatrienoic acid (EET) contributes to browning of white adipose stem cells to ameliorate obesity/diabetes and insulin resistance. In the current study, we show that EET altered preadipocyte function, enhanced peroxisome proliferation-activated receptor γ coactivator α (PGC-1α) expression, and increased mitocho...
journal_title:Stem cells and development
pub_type: 杂志文章
doi:10.1089/scd.2016.0072
更新日期:2016-07-15 00:00:00
abstract::Resveratrol is a natural polyphenol antioxidant that has been shown to facilitate osteogenic differentiation. A recent breakthrough has demonstrated that ectopic expression of four genes is sufficient to reprogram murine and human fibroblasts into induced pluripotent stem (iPS) cells. However, the roles of resveratrol...
journal_title:Stem cells and development
pub_type: 杂志文章
doi:10.1089/scd.2009.0186
更新日期:2010-02-01 00:00:00
abstract::Neuroblastoma (NB) is the second most common solid cancer in childhood, accounting for 15% of cancer-related deaths in children. In high-risk NB patients, the majority suffers from metastasis. Despite intensive multimodal treatment, long-term survival remains <40%. The bone marrow (BM) is among the most common sites o...
journal_title:Stem cells and development
pub_type: 杂志文章
doi:10.1089/scd.2020.0142
更新日期:2021-01-15 00:00:00
abstract::Inducing a stable and predictable program of neural cell fate in pluripotent cells in vitro is an important goal for utilizing these cells for modeling human disease mechanisms. However, the extent to which in vitro neural specification recapitulates in vivo neural specification remains to be fully established. We pre...
journal_title:Stem cells and development
pub_type: 杂志文章
doi:10.1089/scd.2011.0593
更新日期:2012-10-10 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::Multipotent bone marrow-derived mesenchymal stem/stromal cells (BMSCs) exhibit a finite life span after ex vivo expansion leading to cellular senescence. Many factors can contribute to this. Recently, our group has identified for the first time expression of the chemokine-like factor superfamily 8 (CMTM8) gene in cult...
journal_title:Stem cells and development
pub_type: 杂志文章
doi:10.1089/scd.2020.0007
更新日期:2020-07-01 00:00:00
abstract::The induction and detection of chemotactic migration in mesenchymal stem cells (MSC) are complicated by their adherent nature. We describe here the experimental details for inducing the transmigration of MSC seeded in microchemotaxis chambers and reliably identifying the translocated cells. A combination of 8-microm p...
journal_title:Stem cells and development
pub_type: 杂志文章
doi:10.1089/scd.2005.14.231
更新日期:2005-04-01 00:00:00
abstract::Stem cell-based therapies have demonstrated great potential for the treatment of cardiac diseases, for example, myocardial infarction; however, low cell viability, low retention/engraftment, and uncontrollable in vivo differentiation after transplantation are still major limitations, which lead to low therapeutic effi...
journal_title:Stem cells and development
pub_type: 杂志文章
doi:10.1089/scd.2016.0351
更新日期:2017-06-15 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::We have isolated a novel progenitor cell population from adult rat pancreatic ducts, termed pancreatic-derived progenitor cells (PDPCs). Here, we report the in vitro culture, selection, and characterization of Thy1.1-positive and Thy1.1-negative PDPC subpopulations. These cells exhibit bipotentiality for differentiati...
journal_title:Stem cells and development
pub_type: 杂志文章
doi:10.1089/scd.2008.0301
更新日期:2009-12-01 00:00:00
abstract::Mesenchymal stem cells (MSCs) from bone marrow (BM) are widely used for bone and less for cartilage tissue regeneration due to their self-renewal and differentiating properties into osteogenic or chondrogenic lineages. This review considers the last decade of clinical trials involving a two-step procedure, by expandin...
journal_title:Stem cells and development
pub_type: 杂志文章,评审
doi:10.1089/scd.2012.0373
更新日期:2013-01-15 00:00:00
abstract::Pluripotent stem cells (PSCs), including embryonic stem cells (ESCs), and induced PSCs (iPSCs) are able to self-renew and differentiate into a multitude of specialized cellular lineages. In these cells, the pluripotential identity is maintained by a group of transcription factors (TFs). Among these factors, SOX TFs pl...
journal_title:Stem cells and development
pub_type: 杂志文章,评审
doi:10.1089/scd.2014.0297
更新日期:2014-11-15 00:00:00
abstract::The increasing use of mesenchymal stromal cells (MSC) in clinical cellular therapy requires a safe and controlled production process compliant with Good Manufacturing Practice guidelines. Pooled blood group AB human serum (HS) has been used to replace fetal bovine serum (FBS), critically rated by the regulatory agenci...
journal_title:Stem cells and development
pub_type: 杂志文章
doi:10.1089/scd.2012.0051
更新日期:2013-03-01 00:00:00
abstract::Although umbilical cord blood (UCB) has been widely accepted as an alternative source of hematopoietic stem cells (HSC) for transplantation, its use in adults is restricted because of low absolute HSC numbers. To overcome this obstacle, expansion of HSC in coculture with feeder cells is a promising possibility. In thi...
journal_title:Stem cells and development
pub_type: 杂志文章
doi:10.1089/scd.2007.0273
更新日期:2009-01-01 00:00:00
abstract::Accumulating evidence suggests that the delivery of human adipose tissue-derived stromal cells (hASCs) has great potential as regenerative therapy. This was performed to develop a method for expanding hASCs by reducing the amount of serum required. We demonstrate that hASCs were able to expand efficiently in media con...
journal_title:Stem cells and development
pub_type: 杂志文章
doi:10.1089/scd.2008.0358
更新日期:2009-05-01 00:00:00
abstract::Bone marrow human mesenchymal stem cells (hMSCs) are known to survive in serum-free media, when most normal somatic cells do not survive. We found that the endogenously-activated bone morphogenetic protein (BMP) pathway is involved in this cellular behavior. Under this culture condition, phosphorylated Smad1 (PSmad1),...
journal_title:Stem cells and development
pub_type: 杂志文章
doi:10.1089/scd.2009.0020
更新日期:2009-11-01 00:00:00
abstract::Little is known about the effects of ionizing radiation on the earliest stages of embryonic development although it is well recognized that ionizing radiation is a natural part of our environment and further exposure may occur due to medical applications. The current study addresses this issue using D3 mouse embryonic...
journal_title:Stem cells and development
pub_type: 杂志文章
doi:10.1089/scd.2015.0260
更新日期:2016-01-15 00:00:00
abstract::The peritoneum mesothelium lines body cavities and has the same origin as ovarian surface epithelium with probable existence of peritoneum mesenchymal stem cells (PMSCs). In the present research, PMSCs were isolated from peritoneum and differentiated into ovarian cell-like cells using human follicular fluid (HFF) and ...
journal_title:Stem cells and development
pub_type: 杂志文章
doi:10.1089/scd.2018.0149
更新日期:2019-04-15 00:00:00
abstract::Mesenchymal stromal cells (MSCs) hold great promise in the field of regenerative medicine due to their ability to create a variable localized anti-inflammatory effect in injuries such as Crohn's disease and osteoarthritis or by incorporation in tissue engineered constructs. Currently, the MSC literature uses rodents f...
journal_title:Stem cells and development
pub_type: 杂志文章
doi:10.1089/scd.2019.0145
更新日期:2020-06-01 00:00:00