Tissue engineering interactions

Wu and co-workers [13] incorporated copolymer poly(3HB-co-3HV) with calcium silicate(s) (CS) to increase the hydrophilicity of the copolymer in order to enhance cell adhesion on scaffolds used for cartilage tissue engineering. Interactions between poly(3HB-co-3HV)/CS composite scaffolds and chondrocytes in vitro and the formation of neocartilage were evaluated after the implantation of scaffolds into rabbits. It was found that the adhesion of chondrocytes onto the scaffolds and cell proliferation improved with the addition of CS. Enhanced penetration of chondrocytes into the scaffolds was observed with the increase in hydrophilicity of the poly(3HB-co-3HV)/CS composite scaffolds. A higher amount of collagen and glycosaminoglycan were detected in the composite scaffold compared with pure poly(3HB-co-3HV), indicating that poly(3HB-co-3HV)/CS composite scaffolds stimulated the extracellular matrix synthesis of chondrocytes. 

Podporska-CarroU, J., Ip, J.W.Y., Gogolewski, S., 2014. Biodegradable poly(ester urethane) urea scaffolds for tissue engineering interaction with osteoblast-like MG-63 cells. Acta Biomateiialia 10, 2781-2791. http //dx.doi.Org/10.1016/j.actbio.2014.02.016. 

Pra D, Chiarini A. Silk fibroin-coated three-dimensional polyurethane scaffolds for tissue engineering interactions with normal human fibroblasts (vol 9, pg 1113, 2003). Tissue Eng A 2013 19 316. 

Williamson, M.R., Adams, E.F., Coombes, A.G., 2006. Gravity spun polycaprolactone fibres for soft tissue engineering interaction with fibroblasts and myoblasts in cell culture. Biomaterials 27, 1019—1026. 

Multiple applications for resilin-like polypeptides have garnered renewed research interest since the report of the first recombinant resilin in 2005. The excellent mechanical properties of the resilin-like polypeptides has directed investigation toward their use as high-performance materials and in tissue engineering applications. It is widely acknowledged that cells interact and take cues from their microenvironment and, therefore, the development of polymeric scaffolds to mimic the extracellular matrix and drive desired cell or tissue responses has been of wide interest. To this end, our laboratories have developed a modular resilin-like polypeptide (RLP12) (see Fig. 20) that contains not only twelve repeats of the... 

Exploitation of our knowledge of cell-material interactions can allow the bioengineer to rationally design appropriate materials for applications such as tissue engineering. 

Saltzman, W. M., Cell Interactions with polymers, in Principles of Tissue Engineering (R. Lanza Ed.), pp. 228-246. RG Landes Company, Austin, TX (1997). 

The polymer/SWCNT composites can be used as Scaffolds in tissue engineering. The donor-acceptor interactions can be used to assemble thin polymer/SWCNT films stepwise. This method also can be expended to more thermally and oxidatively stable polymer systems. For example, the P4VP/SWCNT films can be used as scaffolds for the synthesis of novel hybrid structures (Correa-Duaite et al., 2004). The polyethyl-enimine (PEI)-SWCNTs composites were used as a substrate for cultured neurons, and promoted neurite outgrowth and branching (Rouse et al., 2004). Correa-Duarte et al. (2004 Landi et al., 2005) reported that 3D-MWCNT-based networks are ideal candidates for scaffolds/matrices in tissue engineering. 

This study reports on the potentiality of applying a membrane biohybrid system in the field of tissue engineering and regenerative medicine evidencing the crucial points in the in-vitro reconstruction of the physiological tissue model. A number of issues need to be addressed the morphological and physicochemical properties of the membrane, the optimal density of immobilized cells, the interaction of cells with the membrane, the differentiation of cells as well as the maintenance of viability and... 

Hyaluronan is the most common negatively charged glycosaminoglycan in the human vitreous humor, and is known to interact with polymeric and liposomal DNA complexes, where hyaluronan solutions have been shown to decrease the cellular uptake of complexes.This is useful for enhancing the availability and retention time of drugs administered to the eye. It is immunoneutral, which makes it useful for the attachment of biomaterials for use in tissue engineering and drug delivery... 

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