Abstract:
:Recellularization of ex vivo-derived scaffolds remains a significant hurdle primarily due to the scaffolds subcellular pore size that restricts initial cell seeding to the scaffolds periphery and inhibits migration over time. With the aim to improve cell migration, repopulation, and graft mechanics, the effects of a four-step culture approach were assessed. Using an ex vivo-derived vein as a model scaffold, human smooth muscle cells were first seeded onto its ablumen (Step 1: 3 hr) and an aggressive 0-100% nutrient gradient (lumenal flow under hypotensive pressure) was created to initiate cell migration across the scaffold (Step 2: Day 0 to 19). The effects of a prolonged aggressive nutrient gradient created by this single lumenal flow was then compared with a dual flow (lumenal and ablumenal) in Step 3 (Day 20 to 30). Analyses showed that a single lumenal flow maintained for 30 days resulted in a higher proportion of cells migrating across the scaffold toward the vessel lumen (nutrient source), with improved distribution. In Step 4 (Day 31 to 45), the transition from hypotensive pressure (12/8 mmHg) to normotensive (arterial-like) pressure (120/80 mmHg) was assessed. It demonstrated that recellularized scaffolds exposed to arterial pressures have increased glycosaminoglycan deposition, physiological modulus, and Young's modulus. By using this stepwise conditioning, the challenging recellularization of a vein-based scaffold and its positive remodeling toward arterial biomechanics were obtained.
journal_name
J Tissue Eng Regen Medjournal_title
Journal of tissue engineering and regenerative medicineauthors
Van de Walle AB,Moore MC,McFetridge PSdoi
10.1002/term.3015subject
Has Abstractpub_date
2020-03-01 00:00:00pages
510-520issue
3eissn
1932-6254issn
1932-7005journal_volume
14pub_type
杂志文章abstract::Bone marrow (BM) multipotent mesenchymal stromal cells (MSCs) present with multipotent differentiation potential and immunomodulatory properties. As an alternative to bone marrow, we have examined fetal membranes, amnion and chorion, of term human placenta as a potential source of multipotent MSCs. Here we show that a...
journal_title:Journal of tissue engineering and regenerative medicine
pub_type: 杂志文章
doi:10.1002/term.40
更新日期:2007-07-01 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.156
更新日期:2009-03-01 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::Tendon healing still represents a challenge for clinicians because it is slow and incomplete. The most injured is the Achilles tendon, and surgery is the therapeutic strategy often adopted because it provides a quicker functional recovery. Peritendinous adhesions are the main complication of surgery with hyperplasia a...
journal_title:Journal of tissue engineering and regenerative medicine
pub_type: 杂志文章
doi:10.1002/term.3085
更新日期:2020-08-01 00:00:00
abstract::Mesenchymal stem cells (MSCs) have been suggested as a potential cell source for tendon/ligament tissue engineering. Extrinsic cues, such as the chemical and physical properties of scaffolds, as well as external forces, play an important role in fibroblastic differentiation of these cells. In this study, we employed a...
journal_title:Journal of tissue engineering and regenerative medicine
pub_type: 杂志文章
doi:10.1002/term.1880
更新日期:2016-12-01 00:00:00
abstract::Current approaches for precision deposition of cells are not optimized for moist environments or for substrates with complex surface topographic features, for example, the surface of dermal matrices and other biomaterials. To overcome these challenges, an approach is presented that utilizes cell confinement in phase-s...
journal_title:Journal of tissue engineering and regenerative medicine
pub_type: 杂志文章
doi:10.1002/term.2845
更新日期:2019-06-01 00:00:00
abstract::Cartilage defects heal imperfectly and osteoarthritic changes develop frequently as a result. Although the existence of specific behaviours of chondrocytes derived from various depth-related zones in vitro has been known for over 20 years, only a relatively small body of in vitro studies has been performed with zonal ...
journal_title:Journal of tissue engineering and regenerative medicine
pub_type: 杂志文章,评审
doi:10.1002/term.1638
更新日期:2015-06-01 00:00:00
abstract::Silk fibroin (SF) hydrogels can be obtained via self-assembly, but this process takes several days or weeks, being unfeasible to produce cell carrier hydrogels. In this work, a phospholipid, namely, 1,2-dimyristoyl-sn-glycero-3-phospho-(1'-rac-glycerol) sodium salt (DMPG), was used to induce and accelerate the gelatio...
journal_title:Journal of tissue engineering and regenerative medicine
pub_type: 杂志文章
doi:10.1002/term.2982
更新日期:2020-01-01 00:00:00
abstract::Manufacture of red blood cells (RBCs) from progenitors has been proposed as a method to reduce reliance on donors. Such a process would need to be extremely efficient for economic viability given a relatively low value product and high (2 × 1012 ) cell dose. Therefore, the aim of these studies was to define the produc...
journal_title:Journal of tissue engineering and regenerative medicine
pub_type: 杂志文章
doi:10.1002/term.2337
更新日期:2018-01-01 00:00:00
abstract::Current cardiac cell therapies cannot effectively target and retain cells in a specific area of the heart. Cell-seeded biological sutures were previously developed to overcome this limitation, demonstrating targeted delivery with > 60% cell retention. In this study, both cell-seeded and non-seeded fibrin-based biologi...
journal_title:Journal of tissue engineering and regenerative medicine
pub_type: 杂志文章
doi:10.1002/term.1904
更新日期:2017-01-01 00:00:00
abstract::The aim of this study is to describe the treatment of an infected segmental bone defect in a cat using a novel, custom-designed titanium implant seeded with adipose-derived stem cells (AdMSCs) to facilitate osseous ingrowth and preserve limb function. Large bone defects occur secondary to trauma, infection, or neoplas...
journal_title:Journal of tissue engineering and regenerative medicine
pub_type:
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更新日期:2020-10-01 00:00:00
abstract::The ability to control facial skin physiology and appearance through the oral mucosa (transbuccally) is largely unexplored. Here, a hypothesis was tested that transbuccal delivery of fat tissue-supportive actives may trigger beneficial cosmetic responses at the level of the skin. First, the importance of the fat tissu...
journal_title:Journal of tissue engineering and regenerative medicine
pub_type:
doi:10.1002/term.3087
更新日期:2020-08-01 00:00:00
abstract::Major congenital malformations affect up to 3% of newborns. Infants with prenatally diagnosed soft tissue defects should benefit from having autologous tissue readily available for surgical implantation in the perinatal period. In this study, we investigate fetal subcutaneous cells as cellular source for tissue engine...
journal_title:Journal of tissue engineering and regenerative medicine
pub_type: 杂志文章
doi:10.1002/term.2639
更新日期:2018-05-01 00:00:00
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
pub_type: 杂志文章
doi:10.1002/term.2856
更新日期:2019-07-01 00:00:00
abstract::Peripheral human nerves fail to regenerate across long tube implants (>2 cm), and tissue-engineered nerve grafts represent a promising treatment alternative. The present study aims to investigate the testosterone propionate (TP) repair effect of acellular nerve allograft (ANA) seeded with allogeneic bone marrow mesenc...
journal_title:Journal of tissue engineering and regenerative medicine
pub_type: 杂志文章
doi:10.1002/term.2922
更新日期:2019-09-01 00:00:00
abstract::The gastroesophageal junction has been of clinical interest for some time due to its important role in preventing reflux of caustic stomach contents upward into the esophagus. Failure of this role has been identified as a key driver in gastroesophageal reflux disease, cancer of the lower esophagus, and aspiration-indu...
journal_title:Journal of tissue engineering and regenerative medicine
pub_type: 杂志文章,评审
doi:10.1002/term.3045
更新日期:2020-06-01 00:00:00
abstract::The objective was to improve proliferation and chondrogenic potential of adipose stem cells (ASCs) by expansion on extracellular matrix (ECM) deposited by either ASCs or synovium-derived stem cells (SDSCs). ASCs isolated from porcine infrapatellar fat pad were separately expanded on conventional plastic flasks, ASC-de...
journal_title:Journal of tissue engineering and regenerative medicine
pub_type: 杂志文章
doi:10.1002/term.505
更新日期:2013-01-01 00:00:00
abstract::Poly(glycerol sebacate) (PGS) is a biodegradable elastomer that has generated great interest as a scaffold material due to its desirable mechanical properties. However, the use of PGS in tissue engineering is limited by difficulties in casting micro- and nanofibrous structures, due to high temperatures and vacuum requ...
journal_title:Journal of tissue engineering and regenerative medicine
pub_type: 杂志文章
doi:10.1002/term.313
更新日期:2011-04-01 00:00:00
abstract::Low immunogenicity and high repopulation capacity are crucial determinants for the functional and structural performance of acellular cardiovascular implants. The present study evaluates a detergent-free, non-proteolytic, actin-disassembling regimen (BIO) for decellularization of heart valve and vessel grafts, particu...
journal_title:Journal of tissue engineering and regenerative medicine
pub_type: 杂志文章
doi:10.1002/term.2271
更新日期:2017-12-01 00:00:00
abstract::Treatment of tendon-bone junction injuries is a challenge because tendon-bone interface often heals poorly and the fibrocartilage zone, which reduces stress concentration, at the interface is not formed. In this study, we used a compound called kartogenin (KGN) with platelet-rich plasma (PRP) to induce the formation o...
journal_title:Journal of tissue engineering and regenerative medicine
pub_type: 杂志文章
doi:10.1002/term.2258
更新日期:2017-12-01 00:00:00
abstract::The idea of rescuing the body self-repair capability lost during evolution is progressively gaining ground in regenerative medicine. In particular, growth factors and bioactive molecules derived from activated platelets emerged as promising therapeutic agents acting as trigger for repair of tissue lesions and restorat...
journal_title:Journal of tissue engineering and regenerative medicine
pub_type: 杂志文章
doi:10.1002/term.2595
更新日期:2018-03-01 00:00:00
abstract::Nanopatterned (330 nm wide channels) type I collagen films were prepared by solvent casting on poly(dimethyl siloxane) (PDMS) templates. These films were rolled into tubular constructs and crosslinked. Tubular constructs were incubated under cell culture conditions for 28 days and examined by stereomicroscopy and scan...
journal_title:Journal of tissue engineering and regenerative medicine
pub_type: 杂志文章
doi:10.1002/term.99
更新日期:2008-08-01 00:00:00
abstract::Developing and regenerating neurites respond to a variety of biophysical and biochemical cues in their micro-environment to reach target cells and establish appropriate synapses. Defining the hierarchal relationship of both types of cues to direct neurite growth carries broad significance for neural development, regen...
journal_title:Journal of tissue engineering and regenerative medicine
pub_type: 杂志文章
doi:10.1002/term.2527
更新日期:2018-03-01 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::The effects of the stiffness of substrates on the cell behaviours of human bone marrow-derived mesenchymal stem cells (hBMSC) have been investigated, but the effects of the secondary structures of proteins in the substrates on the morphological transformation and differentiation of hBMSC have yet been elucidated. To i...
journal_title:Journal of tissue engineering and regenerative medicine
pub_type: 杂志文章
doi:10.1002/term.2616
更新日期:2018-04-01 00:00:00
abstract:BACKGROUND:According to experimental studies, mesh implants may reduce in size up to 50.8% during their integration into soft tissues. This results in impaired mobility of the anterior abdominal wall and hernia recurrences, as well as affects patients' quality of life. Due to unsatisfactory radiographic contrast of pol...
journal_title:Journal of tissue engineering and regenerative medicine
pub_type: 杂志文章
doi:10.1002/term.3029
更新日期:2020-05-01 00:00:00
abstract::Native articular cartilage is subjected to synovial fluid flow during normal joint function. Thus, it is believed that the morphogenesis of articular cartilage may be positively regulated by the application of similar stimulation in vitro. In the present study, the effect of fluid flow over the chondrogenic differenti...
journal_title:Journal of tissue engineering and regenerative medicine
pub_type: 杂志文章
doi:10.1002/term.372
更新日期:2011-10-01 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
doi:10.1002/term.375
更新日期:2011-11-01 00:00:00
abstract::The present study aimed to investigate the effect of structure (design and porosity) on the matrix stiffness and osteogenic activity of stem cells cultured on poly(ester-urethane) (PEU) scaffolds. Different three-dimensional (3D) forms of scaffold were prepared from lysine-based PEU using traditional salt-leaching and...
journal_title:Journal of tissue engineering and regenerative medicine
pub_type: 杂志文章
doi:10.1002/term.1848
更新日期:2015-08-01 00:00:00
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