Abstract:
:Many types of cells respond to applied direct current electric fields (dcEFs) by directional cell migration, a phenomenon called galvanotaxis or electrotaxis. In this study, electrotaxis was used to control cell migration. We designed a new electrotaxis incubator and chamber system to facilitate long-term (> 12 h) observation and to allow for alterations to the direction of the current. Poly(lactic-co-glycolic acid) (PLGA) was coated onto surfaces to mimic a commonly used tissue-engineering scaffolding environment. Neonatal human dermal fibroblasts (nHDFs) were grown on PLGA-coated surfaces and exposed to EFs at increasing currents in the range 0-1 V/cm. These cells migrated toward the cathode during 3 h of dcEF stimulation; however, the migration speed decreased with increasing electric fields. Cells exposed to dcEFs in the range 1-2 V/cm showed no changes to migration speed or x forward migration indices (xFMIs) and the cells continued to move toward the cathode. nHDFs showed directional migration towards the cathode in direct current (dc) EFs (1 V/cm) and they moved in the opposite direction when the polarity of the dcEF was reversed. Reorganization of the actin cytoskeleton and polarization of the Golgi apparatus were evaluated by immunostaining, which showed that the actin cytoskeleton elongated towards the cathode and the Golgi apparatus polarized in the direction of the dcEF. This study revealed that cell migration could potentially be controlled on PLGA scaffolds through electrotaxis. Copyright © 2015 John Wiley & Sons, Ltd.
journal_name
J Tissue Eng Regen Medjournal_title
Journal of tissue engineering and regenerative medicineauthors
Kim MS,Lee MH,Kwon BJ,Seo HJ,Koo MA,You KE,Kim D,Park JCdoi
10.1002/term.1986subject
Has Abstractpub_date
2017-03-01 00:00:00pages
862-868issue
3eissn
1932-6254issn
1932-7005journal_volume
11pub_type
杂志文章abstract::This study aims to investigate the superiorities of fast degrading elastomeric poly(glycerol sebacate) (PGS)/polycaprolactone (PCL) grafts over autologous vein grafts in the reconstruction of carotid artery, thus providing more suitable vascular grafts for carotid artery replacement. We fabricated small arterial graft...
journal_title:Journal of tissue engineering and regenerative medicine
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journal_title:Journal of tissue engineering and regenerative medicine
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doi:10.1002/term.1883
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journal_title:Journal of tissue engineering and regenerative medicine
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journal_title:Journal of tissue engineering and regenerative medicine
pub_type: 杂志文章,meta分析,评审
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journal_title:Journal of tissue engineering and regenerative medicine
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journal_title:Journal of tissue engineering and regenerative medicine
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更新日期:2018-03-01 00:00:00
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更新日期:2016-01-01 00:00:00
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journal_title:Journal of tissue engineering and regenerative medicine
pub_type: 杂志文章
doi:10.1002/term.1714
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journal_title:Journal of tissue engineering and regenerative medicine
pub_type: 杂志文章
doi:10.1002/term.21
更新日期:2007-05-01 00:00:00
abstract::Cranioplasty is necessary for patients that have undergone craniectomy following trauma, stroke or other causes of elevated intracranial pressure. This study assessed the effectiveness of treating cranial defects with allogeneic mesenchymal stromal cells (MSC) on a ceramic carrier and polymer scaffold, to produce viab...
journal_title:Journal of tissue engineering and regenerative medicine
pub_type:
doi:10.1002/term.2459
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abstract::The composition and organization of the vocal fold extracellular matrix (ECM) provide the viscoelastic mechanical properties that are required to sustain high-frequency vibration during voice production. Although vocal injury and pathology are known to produce alterations in matrix physiology, the mechanisms responsib...
journal_title:Journal of tissue engineering and regenerative medicine
pub_type: 杂志文章
doi:10.1002/term.219
更新日期:2010-01-01 00:00:00
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journal_title:Journal of tissue engineering and regenerative medicine
pub_type: 杂志文章,评审
doi:10.1002/term.2061
更新日期:2017-04-01 00:00:00
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journal_title:Journal of tissue engineering and regenerative medicine
pub_type: 杂志文章
doi:10.1002/term.1774
更新日期:2016-02-01 00:00:00
abstract::Cartilage tissue engineering is making progress, but the competing available strategies still leave room for improvement and consensual overviews regarding the best combinations of scaffolds and cell sources are limited by the capacity to compare them directly. In addition, because most strategies involve autologous c...
journal_title:Journal of tissue engineering and regenerative medicine
pub_type: 杂志文章
doi:10.1002/term.2454
更新日期:2018-03-01 00:00:00
abstract::Bone-like apatite is a carbonated hydroxyapatite with a small crystallite and low crystallinity. The formation of a layer consisting of bone-like apatite is an essential condition for bioactive materials to achieve direct bonding with living bone. A bone-like apatite layer can be formed on the surface of organic subst...
journal_title:Journal of tissue engineering and regenerative medicine
pub_type: 杂志文章,评审
doi:10.1002/term.3
更新日期:2007-01-01 00:00:00
abstract::The aim of this work was to study the in vitro biocompatibility of glass-ceramic scaffolds based on 45S5 Bioglass, using a human osteosarcoma cell line (HOS-TE85). The highly porous scaffolds were produced by the foam replication technique. Two different types of scaffolds with different porosities were analysed. They...
journal_title:Journal of tissue engineering and regenerative medicine
pub_type: 杂志文章
doi:10.1002/term.150
更新日期:2009-02-01 00:00:00
abstract::Elastin, a major component of vascular matrices, critically determines vascular mechanics and maintains the quiescence of smooth muscle cells (SMCs). Attempts to regenerate elastin in elastin-compromised blood vessels using tissue-engineering approaches is limited by the unavailability of elastogenic cues to upregulat...
journal_title:Journal of tissue engineering and regenerative medicine
pub_type: 杂志文章
doi:10.1002/term.70
更新日期:2008-03-01 00:00:00
abstract::Skin and oral mucosa substitutes are a therapeutic option for closing hard-to-heal skin and oral wounds. Our aim was to develop bi-layered skin and gingiva substitutes, from 3 mm diameter biopsies, cultured under identical conditions, which are compliant with current European regulations for advanced therapy medicinal...
journal_title:Journal of tissue engineering and regenerative medicine
pub_type: 杂志文章
doi:10.1002/term.2438
更新日期:2018-02-01 00:00:00
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journal_title:Journal of tissue engineering and regenerative medicine
pub_type:
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journal_title:Journal of tissue engineering and regenerative medicine
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更新日期:2011-06-01 00:00:00
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journal_title:Journal of tissue engineering and regenerative medicine
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更新日期:2011-04-01 00:00:00
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journal_title:Journal of tissue engineering and regenerative medicine
pub_type: 杂志文章
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更新日期:2011-06-01 00:00:00
abstract::Poly(ether imide) (PEI), which can be chemically functionalized with biologically active ligands, has emerged as a potential biomaterial for medical implants. Electrospun PEI scaffolds have shown advantageous properties, such as enhanced endothelial cell adherence, proliferation and low platelet adhesion in in vitro e...
journal_title:Journal of tissue engineering and regenerative medicine
pub_type: 杂志文章
doi:10.1002/term.2002
更新日期:2017-04-01 00:00:00
abstract::Adipose stem cells (ASCs) represent a cell population with great potential for tissue engineering applications. Several articles have been published showing the proliferation and differentiation potential, the markers and the wide range of potential applications of these cells. In the majority of these studies the ASC...
journal_title:Journal of tissue engineering and regenerative medicine
pub_type: 杂志文章
doi:10.1002/term.141
更新日期:2009-02-01 00:00:00
abstract::To establish an ex vivo expansion method of haematopoietic progenitor cells (HPCs) and erythroid cells, three-dimensional (3D) cultures of mouse bone marrow cells were performed, employing a porous polyvinyl formal (PVF) resin as a scaffold. In these cultures, the effects of oxygen concentration and co-cultures with s...
journal_title:Journal of tissue engineering and regenerative medicine
pub_type: 杂志文章
doi:10.1002/term.295
更新日期:2011-02-01 00:00:00
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journal_title:Journal of tissue engineering and regenerative medicine
pub_type: 杂志文章
doi:10.1002/term.307
更新日期:2011-03-01 00:00:00
abstract::A feasibility study was undertaken to examine the potential of biodegradable HEMA-lactate-dextran (HEMA-LLA-D)-based cryogels as scaffolds for cartilage tissue engineering. This was a preliminary in vitro study giving essential information on the biocompatibility of cryogels with cartilage cells. HEMA-lactate (HEMA-LL...
journal_title:Journal of tissue engineering and regenerative medicine
pub_type: 杂志文章
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更新日期:2011-11-01 00:00:00
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journal_title:Journal of tissue engineering and regenerative medicine
pub_type: 杂志文章
doi:10.1002/term.231
更新日期:2010-03-01 00:00:00