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Novel Approach by Nanobiomaterials in Vascular Tissue Engineering
Interactions between vascular endothelial cells (ECs) and biomaterials are important for engineered tissue substitute. The modification of biomaterial surfaces are designed to modulate EC adhesion and responses in order to improve implantation success rate. Specifically, it has now been well established that increased vascular tissue regeneration can be achieved on almost any surface by employing novel nanofabricated surface features. To enhance EC adhesion and growth, material surfaces have been modified with physicochemical and mechanical properties, such as bioactive molecules from the matrix, peptides, and/or growth factors to control EC behavior. The advances in nanotechnology can bring additional functionality to vascular tissue engineering, optimize internal vascular graft surface, help to direct the differentiation of stem cells into the vascular cell phenotype, and, most importantly, also provide a biomaterials-based cellularization process. Nanomaterials could promote in situ endothelialization by mobilizing endothelial progenitor cells (EPCs) from the bone marrow, by encouraging cell-specific adhesion to the vascular graft, and, once attached, by controlling the proliferation and differentiation of these cells. Interaction between different cell types and extracellular matrix continue to be a principal source of inspiration for material biological function and, therefore, the understanding of the molecular mechanism trigger by the interaction is discussed.
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Cell Transplantation publishes original, peer-reviewed research and review articles on the subject of cell transplantation and its application to human diseases. To ensure high-quality contributions from all areas of transplantation, separate section editors and editorial boards have been established. Articles deal with a wide range of topics including physiological, medical, preclinical, tissue engineering, and device-oriented aspects of transplantation of nervous system, endocrine, growth factor-secreting, bone marrow, epithelial, endothelial, and genetically engineered cells, among others. Basic clinical studies and immunological research papers are also featured. To provide complete coverage of this revolutionary field, Cell Transplantation will report on relevant technological advances, and ethical and regulatory considerations of cell transplants. Cell Transplantation is now an Open Access journal starting with volume 18 in 2009, and therefore there will be an inexpensive publication charge, which is dependent on the number of pages, in addition to the charge for color figures. This will allow work to be disseminated to a wider audience and also entitle the corresponding author to a free PDF, as well as prepublication of an unedited version of the manuscript.
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