Abstract: The application describes a contractile cellular biomaterial that is particularly well suited to regenerative therapy of tissue affected by myocardial infraction. The biomaterial comprises a contractile tissue which is contained in an optionally porous solid substrate. The contractile tissue is formed by differentiating stem cells, in particular mesenchymal stem cells. In addition to being contractile, the biomaterial can have inducible paracrine activity. The biomaterial has, in particular, the advantage of not needing to be frozen in order to be conserved.

Abstract: Three-dimensional solid contractile collagen scaffolds having improved biological properties and electromechanical performance are provided. The scaffolds can be used for cell transplantation, including the fixation of biocompatible reagents and adhesion molecules which control cell adhesion, apoptosis, survival and/or differentiation simultaneously. Grafting adhesion molecules to the collagen matrices renders the scaffold suitable for use in vascular and cardiothoracic surgery/medicine, as well as in cell therapy for the heart and in artificial heart muscle engineering. Also, a method for grafting and optimizing the presentation of adhesion peptides or biological agents in the scaffold is provided.

Abstract: Materials and methods for improving the biological properties and electromechanical performance of collagen scaffolds used for cell transplantation, including the fixation of biocompatible reagents and adhesion molecules which control cell adhesion, apoptosis, survival and/or differentiation simultaneously. The grafting of adhesion molecules to collagen matrices renders same suitable for use in vascular and cardiothoracic surgery/medicine, as well as in cell therapy for the heart and in artificial heart muscle engineering. Also, a simple method for grafting and optimising the presentation of adhesion peptides or biological agents when the scaffold is made from collagen and/or contains accessible thiol, amine or carboxyl groups.

Abstract: The application relates to a method for producing a medical bioprosthesis that can be transplanted in a patient and comprises substances from animal tissue, said method comprising a step during which a bioprosthesis is positively selected for implantation in the body of said patient when (i) the phenotype in the ABO/ABH system of said bioprosthesis is compatible with (ii) the phenotype in the ABO/ABH system of said patient.

Abstract: The application relates to a method for producing a medical bioprosthesis that can be implanted in a patient and comprises substances from animal tissue, said method comprising a step during which a bioprosthesis is positively selected for implantation in the body of said patient when (i) the phenotype in the ABO/ABH system of said bioprosthesis is compatible with (ii) the phenotype in the ABO/ABH system of said patient.

Abstract: Materials and methods for improving the biological properties and electromechanical performance of collagen scaffolds used for cell transplantation, including the fixation of biocompatible reagents and adhesion molecules which control cell adhesion, apoptosis, survival and/or differentiation simultaneously. The grafting of adhesion molecules to collagen matrices renders same suitable for use in vascular and cardiothoracic surgery/medicine, as well as in cell therapy for the heart and in artificial heart muscle engineering. Also, a simple method for grafting and optimising the presentation of adhesion peptides or biological agents when the scaffold is made from collagen and/or contains accessible thiol, amine or carboxyl groups.