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6077results about "Artificial cell constructs" patented technology

Method for the generation of antigen-specific lymphocytes

InactiveUS20070116690A1Function increaseEnhancing function of T cellBiocideVirusesAutoimmune conditionAutoimmune disease
The invention provides systems and methods for the generation of lymphocytes having a unique antigen specificity. In a preferred embodiment, the invention provides methods of virally infecting cells from bone marrow with one or more viral vectors that encode antigen-specific antibodies for the production of, for example B cells and T cells. In some embodiments, the viral vectors include an IRES or 2A element to promote separation of, for example, the α subunit and β subunit of a T cell receptor (TCR) or heavy and light chains of a B-cell antibody. The resulting lymphocytes, express the particular antibody that was introduced in the case of B cells and TCR in the case of T cells. The lymphocytes generated can be used for a variety of therapeutic purposes including the treatment of various cancers and the generation of a desired immune response to viruses and other pathogens. The resulting cells develop normally and respond to antigen both in vitro and in vivo. We also show that it is possible to modify the function of lymphocytes by using stem cells from different genetic backgrounds. Thus our system constitutes a powerful tool to generate desired lymphocyte populations both for research and therapy. Future applications of this technology may include treatments for infectious diseases, such as HIV/AIDS, cancer therapy, allergy, and autoimmune disease.

Decellularized extracellular matrix of conditioned body tissues and uses thereof

The present invention relates generally to decellularized extracellular matrix of conditioned body tissues. The decellularized extracellular matrix contains a biological material, preferably vascular endothelial growth factor (VEGF), produced by the conditioned body tissue that is in an amount different than the amount of the biological material that the body tissue would produce absent the conditioning. The invention also relates to methods of making and methods of using said decellularized extracellular matrix. Specifically, the invention relates to treating defective, diseased, damaged or ischemic cells, tissues or organs in a subject by administering, injecting or implanting the decellularized extracellular matrix of the invention into a subject in need thereof. The invention is further directed to a tissue regeneration scaffold for implantation into a subject inflicted with a disease or condition that requires tissue or organ repair, regeneration and/or strengthening. Additionally, the invention is directed to a medical device, preferably a stent or an artificial heart, having a surface coated or covered with the decellularized extracellular matrix of the invention or having a component comprising the decellularized extracellular matrix of the invention for implantation into a subject, preferably a human. Methods for making the tissue regeneration scaffold and methods for manufacturing a coated or covered medical device having a component comprising decellularized extracellular matrix of conditioned body tissues are also provided.
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