Abstract:
:Transcription factors are tools repetitively used by the embryo to generate a variety of lineages. Hence, their context of activation is an important determinant of their ability to specifically trigger certain cell fates, but not others. The context is also consequential when considering directing differentiation of embryonic stem cells (ESCs). In this study, we sought to assess the context of pancreatic transcription factor 1a (PTF1a) activation in reference to its propancreatic effects in mouse ESCs (mESCs). We hypothesized that an enriched endodermal population would respond to PTF1a and trigger the pancreatic program more effectively than a spontaneously differentiated population. Using an in vitro model of pancreas development that we recently established, we found that inducing PTF1a in highly enriched definitive endoderm did not promote pancreatic differentiation but induction in more differentiated endoderm, specifically posterior foregut endoderm, did form pancreatic progenitors. These progenitors never underwent terminal differentiation to endocrine or acinar phenotype. However, a short 3D culture period, prior to PTF1a induction, led to the generation of monohormonal insulin(+) cells and amylase-expressing cells. Our findings suggest that enriched posterior foregut endoderm is competent to respond to PTF1a's propancreatic activity; but a 3D culture environment is essential for terminal differentiation of pancreatic progenitors.
journal_name
Stem Cells Intjournal_title
Stem cells internationalauthors
Nair GG,Odorico JSdoi
10.1155/2016/6939438subject
Has Abstractpub_date
2016-01-01 00:00:00pages
6939438eissn
1687-966Xissn
1687-9678journal_volume
2016pub_type
杂志文章abstract::Delayed administration of kallikrein after cerebral infarction can improve neurological function. However, the appropriate kallkrein treatment time after ischemic stroke has not been illuminated. In this study, we compared the long-term outcome among three kallikrein therapeutic regimens starting at different time poi...
journal_title:Stem cells international
pub_type: 杂志文章
doi:10.1155/2018/1706982
更新日期:2018-04-05 00:00:00
abstract:Background:To reduce morbidity to cleft patients, new approaches have been developed and here, we report for the first time the use of deciduous dental pulp stem cells (DDPSC) associated with a hydroxyapatite-collagen sponge (Bio-Oss Collagen® 250 mg, Geistlich) for closing alveolar defects during secondary dental erup...
journal_title:Stem cells international
pub_type: 杂志文章
doi:10.1155/2020/6234167
更新日期:2020-03-12 00:00:00
abstract::Neuromuscular diseases are caused by functional defects of skeletal muscles, directly via muscle pathology or indirectly via disruption of the nervous system. Extensive studies have been performed to improve the outcomes of therapies; however, effective treatment strategies have not been fully established for any majo...
journal_title:Stem cells international
pub_type: 杂志文章,评审
doi:10.1155/2018/6241681
更新日期:2018-04-11 00:00:00
abstract::Myocarditis is a common inflammatory cardiomyopathy, associated with cardiomyocyte apoptosis, which can lead to chronic left ventricular dysfunction. Under conventional heart failure therapy, inflammatory cardiomyopathy typically has a progressive course, indicating a need for alternative therapeutic strategies to imp...
journal_title:Stem cells international
pub_type: 杂志文章
doi:10.1155/2013/353097
更新日期:2013-01-01 00:00:00
abstract::Increasing the success rate of rotator cuff healing remains tremendous challenge. Among many approaches, the possibility of activating resident stem cells in situ, without the need to isolate them from biopsies, could represent valuable therapeutic strategy. Along this line, it has been recently demonstrated that lipo...
journal_title:Stem cells international
pub_type: 杂志文章
doi:10.1155/2016/4373410
更新日期:2016-01-01 00:00:00
abstract:Objective:Parathyroid hormone (PTH) is considered to be essential during the tooth development. Stem cells from the apical papilla (SCAPs) are responsible for dentine formation. However, the interaction between PTH and SCAPs remains unclear. This study was aimed at investigating the effects of PTH on odonto/osteogenic ...
journal_title:Stem cells international
pub_type: 杂志文章
doi:10.1155/2020/5128128
更新日期:2020-02-14 00:00:00
abstract::The concerted action of ion channels and pumps establishing a resting membrane potential has been most thoroughly studied in the context of excitable cells, most notably neurons, but emerging evidences indicate that they are also involved in controlling proliferation and differentiation of nonexcitable somatic stem ce...
journal_title:Stem cells international
pub_type: 杂志文章
doi:10.1155/2012/816049
更新日期:2012-01-01 00:00:00
abstract::Infections of emerging and reemerging viruses (SARS-CoVs, influenza H1N1, etc.) largely and globally affect human health. Animal models often fail to reflect a physiological status because of species tropism of virus infection. Conventional cell lines are usually genetically and phenotypically different from primary c...
journal_title:Stem cells international
pub_type: 杂志文章
doi:10.1155/2020/2421689
更新日期:2020-07-09 00:00:00
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journal_title:Stem cells international
pub_type: 杂志文章
doi:10.1155/2014/409021
更新日期:2014-01-01 00:00:00
abstract:Aim:Few haematopoietic stem cells (HSCs) injected systemically for therapeutic purposes actually reach sites of injury as the vast majority become entrapped within pulmonary capillaries. One promising approach to maintain circulating HSC numbers would be to separate subpopulations with smaller size and/or greater defor...
journal_title:Stem cells international
pub_type: 杂志文章
doi:10.1155/2019/8540706
更新日期:2019-09-05 00:00:00
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journal_title:Stem cells international
pub_type: 杂志文章,评审
doi:10.1155/2016/6705927
更新日期:2016-01-01 00:00:00
abstract::Aged tendon-derived stem/progenitor cells (TSPCs) lead to age-related tendon disorders and impair tendon healing. However, the underlying molecular mechanisms of TSPC aging remain largely unknown. Here, we investigated the role of connective tissue growth factor (CTGF) in TSPC aging. CTGF protein and mRNA levels were ...
journal_title:Stem cells international
pub_type: 杂志文章
doi:10.1155/2019/6257537
更新日期:2019-11-11 00:00:00
abstract::Mesenchymal stem cells (MSCs) possess a capacity to enhance cutaneous wound healing that is well characterized. However, the therapeutic effect of MSCs appears to be limited. Modifying MSC target genes to increase necessary biological effects is a promising strategy for wound therapy. Interleukin-10 (IL-10) is an anti...
journal_title:Stem cells international
pub_type: 杂志文章
doi:10.1155/2019/9158016
更新日期:2019-06-11 00:00:00
abstract::Designing and providing a scaffold are very important for the cells in tissue engineering. Polybutylene succinate (PBS) has high potential as a scaffold for bone regeneration due to its capacity in cell proliferation and differentiation. Also, stem cells from 3rd molar tooth germs were favoured in this study due to th...
journal_title:Stem cells international
pub_type: 杂志文章
doi:10.1155/2016/8792191
更新日期:2016-01-01 00:00:00
abstract::There are very few model systems which demonstrate hematopoiesis in vitro. Previously, we described unique splenic stromal cell lines which support the in vitro development of hematopoietic cells and particularly myeloid cells. Here, the 5G3 spleen stromal cell line has been investigated for capacity to support the di...
journal_title:Stem cells international
pub_type: 杂志文章
doi:10.1155/2018/9896142
更新日期:2018-12-25 00:00:00
abstract::The regeneration of the muscle tissue relies on the capacity of the satellite stem cell (SC) population to exit quiescence, divide asymmetrically, proliferate, and differentiate. In age-related muscle atrophy (sarcopenia) and several dystrophies, regeneration cannot compensate for the loss of muscle tissue. These diso...
journal_title:Stem cells international
pub_type: 杂志文章
doi:10.1155/2019/5980465
更新日期:2019-04-24 00:00:00
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journal_title:Stem cells international
pub_type: 杂志文章
doi:10.1155/2016/4078215
更新日期:2016-01-01 00:00:00
abstract::Human embryonic stem cells (hESCs) are being utilized in diverse areas of studies such as development and disease modeling, cell replacement therapy, or drug toxicity testing because of their potential to be differentiated into any cell type in the body. The directed differentiation of hESCs into hepatocytes could pro...
journal_title:Stem cells international
pub_type: 杂志文章
doi:10.1155/2019/5968236
更新日期:2019-01-22 00:00:00
abstract::The purpose of the present study was to test the potential of mouse bone marrow-derived mesenchymal stem cells (BD-MSCs) in improving tear production in a mouse model of Sjögren's syndrome dry eye and to investigate the underlying mechanisms involved. NOD mice (n = 20) were randomized to receive i.p. injection of ster...
journal_title:Stem cells international
pub_type: 杂志文章
doi:10.1155/2017/3134543
更新日期:2017-01-01 00:00:00
abstract::Osteoarthritis (OA) can be a debilitating degenerative disease and is the most common form of arthritic disease. There is a general consensus that current nonsurgical therapies are insufficient for younger OA sufferers who are not candidates for knee arthroplasties. Adipose-derived mesenchymal stem cells (MSCs) therap...
journal_title:Stem cells international
pub_type: 杂志文章
doi:10.1155/2015/421253
更新日期:2015-01-01 00:00:00
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journal_title:Stem cells international
pub_type: 杂志文章
doi:10.1155/2017/1960965
更新日期:2017-01-01 00:00:00
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journal_title:Stem cells international
pub_type: 杂志文章,评审
doi:10.1155/2015/148064
更新日期:2015-01-01 00:00:00
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journal_title:Stem cells international
pub_type: 杂志文章,评审
doi:10.1155/2020/1327405
更新日期:2020-02-25 00:00:00
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journal_title:Stem cells international
pub_type: 杂志文章,评审
doi:10.1155/2016/8340257
更新日期:2016-01-01 00:00:00
abstract::As mesenchymal stem cells (MSCs) are being investigated for regenerative therapies to be used in the clinic, delineating the roles of the IGF system in MSC growth and differentiation, in vitro, is vital in developing these cellular therapies to treat degenerative diseases. Muscle differentiation is a multistep process...
journal_title:Stem cells international
pub_type: 杂志文章
doi:10.1155/2019/9245938
更新日期:2019-02-17 00:00:00
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journal_title:Stem cells international
pub_type: 杂志文章,评审
doi:10.1155/2016/4209891
更新日期:2016-01-01 00:00:00
abstract::MicroRNAs (miRNAs) play important roles in cell fate decisions. However, the miRNAs and their targets involved in the regulation of cardiac lineage specification are largely unexplored. Here, we report novel functions of miR-142-3p in the regulation of cardiomyocyte differentiation from mouse embryonic stem cells (mES...
journal_title:Stem cells international
pub_type: 杂志文章
doi:10.1155/2017/1769298
更新日期:2017-01-01 00:00:00
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journal_title:Stem cells international
pub_type: 杂志文章
doi:10.1155/2020/8853541
更新日期:2020-09-22 00:00:00
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journal_title:Stem cells international
pub_type: 杂志文章,评审
doi:10.1155/2016/9260592
更新日期:2016-01-01 00:00:00
abstract::A previous study reported the structural characterization of biogenic apatite (BAp) thin films realized by a pulsed electron deposition system by ablation of deproteinized bovine bone. Thin films annealed at 400°C exhibited composition and crystallinity degree very close to those of biogenic apatite; this affinity is ...
journal_title:Stem cells international
pub_type: 杂志文章
doi:10.1155/2017/3579283
更新日期:2017-01-01 00:00:00