Abstract:
:The mechanism for stem cell-mediated improvement following acute myocardial infarction has been actively debated. We support hypotheses that the stem cell effect is primarily paracrine factor-linked. We used a heparin-presenting injectable nanofibre network to bind and deliver paracrine factors derived from hypoxic conditioned stem cell media to mimic this stem cell paracrine effect. Our self-assembling peptide nanofibres presenting heparin were capable of binding paracrine factors from a medium phase. When these factor-loaded materials were injected into the heart following coronary artery ligation in a mouse ischaemia-reperfusion model of acute myocardial infarction, we found significant preservation of haemodynamic function. Through media manipulation, we were able to determine that crucial factors are primarily < 30 kDa and primarily heparin-binding. Using recombinant VEGF- and bFGF-loaded nanofibre networks, the effect observed with conditioned media was recapitulated. When evaluated in another disease model, a chronic rat ischaemic hind limb, our factor-loaded materials contributed to extensive limb revascularization. These experiments demonstrate the potency of the paracrine effect associated with stem cell therapies and the potential of a biomaterial to bind and deliver these factors, pointing to a potential therapy based on synthetic materials and recombinant factors as an acellular therapy.
journal_name
J Tissue Eng Regen Medjournal_title
Journal of tissue engineering and regenerative medicineauthors
Webber MJ,Han X,Murthy SN,Rajangam K,Stupp SI,Lomasney JWdoi
10.1002/term.273subject
Has Abstractpub_date
2010-12-01 00:00:00pages
600-10issue
8eissn
1932-6254issn
1932-7005journal_volume
4pub_type
杂志文章abstract::There has been increased interest in co-cultures of stem cells and chondrocytes for cartilage tissue engineering as there are the limitations associated with using either cell type alone. Drawbacks associated with the use of chondrocytes include the limited numbers of cells available for isolation from damaged or dise...
journal_title:Journal of tissue engineering and regenerative medicine
pub_type: 杂志文章
doi:10.1002/term.2608
更新日期:2018-04-01 00:00:00
abstract::Articular cartilage injuries experienced at an early age can lead to the development of osteoarthritis later in life. In situ three-dimensional (3D) printing is an exciting and innovative biofabrication technology that enables the surgeon to deliver tissue-engineering techniques at the time and location of need. We ha...
journal_title:Journal of tissue engineering and regenerative medicine
pub_type: 杂志文章
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abstract::The purpose of this study was to develop freeze-dried chitosan formulations that can be solubilized in platelet-rich plasma (PRP) to form injectable implants for tissue repair. A systematic approach to adjust formulation parameters, including chitosan number average molar mass (Mn ), chitosan concentration and lyoprot...
journal_title:Journal of tissue engineering and regenerative medicine
pub_type: 杂志文章
doi:10.1002/term.2403
更新日期:2018-01-01 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
abstract::Axial micromotion of bone fragments promotes callus formation and bone healing during the process of distraction osteogenesis (DO). This study investigated the effects of the combined axial compression and distraction (accordion) technique on bone regeneration in rat DO model. Male Sprague-Dawley rats (n = 62) underwe...
journal_title:Journal of tissue engineering and regenerative medicine
pub_type: 杂志文章
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更新日期:2018-02-01 00:00:00
abstract::Bone marrow (BM) stem cells (BMSCs) are an important source for cell therapy. The outcome of cell therapy could be ultimately associated with the number and function of donor BMSCs. The present study was to evaluate the effect of long-term high-fat diet (HFD) on the population of BMSCs and the role of reactive oxygen ...
journal_title:Journal of tissue engineering and regenerative medicine
pub_type: 杂志文章
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journal_title:Journal of tissue engineering and regenerative medicine
pub_type: 杂志文章
doi:10.1002/term.2012
更新日期:2017-04-01 00:00:00
abstract::Regenerative medicine aims to replace lost cells and to restore damaged tissues and organs by either tissue-engineering approaches or stimulation of endogenous processes. Due to their biological properties, stem cells promise to be an effective source for such strategies. Especially adult multipotent stem cells (ASCs)...
journal_title:Journal of tissue engineering and regenerative medicine
pub_type: 杂志文章,评审
doi:10.1002/term.1923
更新日期:2016-01-01 00:00:00
abstract::Electrospinning has recently gained widespread attention as a process capable of producing nanoscale fibres that mimic native extracellular matrix. In this study, we compared the osteogenic differentiation behaviour of human adipose stem cells (ASCs) on a 3D nanofibre matrix of type I rat tail collagen (RTC) and a 2D ...
journal_title:Journal of tissue engineering and regenerative medicine
pub_type: 杂志文章
doi:10.1002/term.85
更新日期:2008-06-01 00:00:00
abstract::The self-regeneration capacity of articular cartilage is limited, due to its avascular and aneural nature. Loaded explants and cell cultures demonstrated that chondrocyte metabolism can be regulated via physiologic loading. However, the explicit ranges of mechanical stimuli that correspond to favourable metabolic resp...
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::Autologous chondrocyte implantation (ACI) is used in 34-60% for osteoarthritic (OA) cartilage defects, although ACI is neither recommended nor designed for OA. Envisioning a hydrogel-based ACI for OA that uses chondrons instead of classically used chondrocytes, we hypothesized that human OA chondrons may outperform OA...
journal_title:Journal of tissue engineering and regenerative medicine
pub_type: 杂志文章
doi:10.1002/term.2516
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: 杂志文章
doi:10.1002/term.1959
更新日期:2017-03-01 00:00:00
abstract::Tissue engineering holds great promise to develop functional constructs resembling the structural organization of native tissues to improve or replace biological functions, with the ultimate goal of avoiding organ transplantation. In tissue engineering, cells are often seeded into artificial structures capable of supp...
journal_title:Journal of tissue engineering and regenerative medicine
pub_type: 杂志文章,评审
doi:10.1002/term.1978
更新日期:2016-09-01 00:00:00
abstract::There is a need for preclinical testing systems that predict the efficacy, safety and pharmacokinetics of cancer therapies better than existing in vitro and in vivo animal models. An approach to the development of predictive in vitro systems is to more closely recapitulate the cellular and spatial complexity of human ...
journal_title:Journal of tissue engineering and regenerative medicine
pub_type: 杂志文章
doi:10.1002/term.2026
更新日期:2017-04-01 00:00:00
abstract::Bone-patellar tendon-bone (BPTB) autografts are the gold standard for anterior cruciate ligament (ACL) reconstruction because the bony ends allow for superior healing and anchoring through bone-to-bone regeneration. However, the disadvantages of BPTB grafts include donor site morbidity and patellar rupture. In order t...
journal_title:Journal of tissue engineering and regenerative medicine
pub_type: 杂志文章
doi:10.1002/term.1966
更新日期:2017-03-01 00:00:00
abstract::The osteo-regenerative properties of allograft have recently been enhanced by addition of autogenous human bone marrow stromal cells (HBMSCs). Limitations in the use of allograft have prompted the investigation of tantalum trabecular metal (TTM) as a potential alternative. TTM is already in widespread orthopaedic use,...
journal_title:Journal of tissue engineering and regenerative medicine
pub_type: 杂志文章
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更新日期:2014-04-01 00:00:00
abstract::Nerve conduits are promising alternatives for repairing nerve gaps; they provide a close microenvironment that supports nerve regeneration. In this sense, histological analysis of axonal growth is a determinant to achieve successful nerve regeneration. To evaluate this process, the most-used immunohistochemical marker...
journal_title:Journal of tissue engineering and regenerative medicine
pub_type: 杂志文章
doi:10.1002/term.1949
更新日期:2017-02-01 00:00:00
abstract::Injections of bone marrow (BM) cell extract, known as 'BM soup', were previously reported to mitigate ionizing radiation (IR) injury to salivary glands (SGs). However, the optimal starting time and frequency to maintain BM soup therapeutic efficacy remains unknown. This study tested the optimal starting time and frequ...
journal_title:Journal of tissue engineering and regenerative medicine
pub_type: 杂志文章
doi:10.1002/term.2513
更新日期:2018-02-01 00:00:00
abstract::'Off-the-shelf' tissue-engineered skin alternatives for epidermal and dermal skin layers are available; however, no such alternative for the subdermal fat layer exists. Without this well-vascularized layer, skin graft take is variable and grafts may have reduced mobility, contracture and contour defects. In this study...
journal_title:Journal of tissue engineering and regenerative medicine
pub_type: 杂志文章
doi:10.1002/term.2025
更新日期:2017-04-01 00:00:00
abstract::Carbonate apatite-coated calcium carbonate (CO3 Ap/CaCO3 ) was fabricated through a dissolution-precipitation reaction using CaCO3 granules as a precursor to accelerate bone replacement based on superior osteoconductivity of the CO3 Ap shell, along with Ca2+ release from the CaCO3 core and quicker resorption of the Ca...
journal_title:Journal of tissue engineering and regenerative medicine
pub_type: 杂志文章
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更新日期:2018-10-01 00:00:00
abstract::Previous researches have emphasized on suitability of decellularized tissues for regenerative applications. The decellularization of cartilage tissue has always been a challenge as the final product must be balanced in both immunogenic residue and mechanical properties. This study was designed to compare and optimize ...
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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journal_title:Journal of tissue engineering and regenerative medicine
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abstract::Repairing the peripheral nerves following a segmental defect injury remains surgically challenging. Because of some disadvantages of nerve grafts, nerve regeneration, such as conduits combined with bone marrow-derived mesenchymal stem cells (BMSCs), may serve as an alternative. BMSCs expand under hypoxic conditions, d...
journal_title:Journal of tissue engineering and regenerative medicine
pub_type: 杂志文章
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更新日期:2020-12-01 00:00:00
abstract::Advanced frontal sinus disease non-responsive to conservative therapy has been treated with fat obliteration for decades. More recently, a wide variety of autogenous, allogenic or synthetic materials have also been used. In this study we present a treatment based on totally autogenous procedures and materials that was...
journal_title:Journal of tissue engineering and regenerative medicine
pub_type: 杂志文章
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更新日期:2013-06-01 00:00:00
abstract::Heart valve replacement is often the only solution for patients suffering from valvular heart disease. However, currently available valve replacements require either life-long anticoagulation or are associated with valve degeneration and calcification. Moreover, they are suboptimal for young patients, because they do ...
journal_title:Journal of tissue engineering and regenerative medicine
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更新日期:2018-01-01 00:00:00
abstract::Cleft palate is one of the most common craniofacial defects in newborn babies. The characteristics of this genetic disease produce soft and hard tissue defects on the lip and maxilla, which cause not only aesthetic but also functional problems with speech, eating, and breathing. Bone grafts using autologous cancellous...
journal_title:Journal of tissue engineering and regenerative medicine
pub_type: 杂志文章
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更新日期:2019-02-01 00:00:00
abstract::In order to examine the differentiation potential of the tenocytes expanded in our defined culture medium (reported previously) and the effect of sequential combination of the two culture conditions on human tenocytes, a two-dimensional and three-dimensional experimental approach was used. Human tenocytes were sequent...
journal_title:Journal of tissue engineering and regenerative medicine
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更新日期:2016-03-01 00:00:00
abstract::In clinical cases, many orthopaedists have been troubled with bone fragility, such as fractures after devitalization therapy for bone tumour, pathological fractures and metastatic tumours. The aim of this study was to determine whether loss of osteogenic capacity of devitalized autologous bones can be rescued using cu...
journal_title:Journal of tissue engineering and regenerative medicine
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abstract::Tissue engineered tracheae have been successfully implanted to treat a small number of patients on compassionate grounds. The treatment has not become mainstream due to the time taken to produce the scaffold and the resultant financial costs. We have developed a method for decellularization (DC) based on vacuum techno...
journal_title:Journal of tissue engineering and regenerative medicine
pub_type: 杂志文章
doi:10.1002/term.1979
更新日期:2017-03-01 00:00:00