Provided is a method for producing an economical bovine serum composition containing many factors useful for cell proliferation. The method includes a step of performing an anticoagulation treatment of bovine whole blood with an anticoagulant, a step of obtaining a buffy coat and a fraction with a heavier specific gravity than that of the buffy coat from the anticoagulated whole blood, and a step of promoting and activating an interaction between the obtained leukocytes and platelets at a given temperature for not less than a given time to cause secretion or release of a humoral factor from the leukocytes and/or platelets and performing a recoagulation treatment of blood components including the humoral factor with a re-coagulating agent.

The present invention provides an isolated cell composition suitable for adoptive immunotherapy, as well as methods of manufacturing the cell compositions and methods of treatment with the cell compositions. The composition comprises, in a pharmaceutically acceptable carrier, at least about 10.sup.6 CD8+ T cells specific for target peptide antigen(s). In various embodiments, the composition is predominately CD8+ T cells, and at least about 20% of T cells in the composition exhibit a central or effector memory phenotype, providing for a robust and durable adoptive therapy from a natural T cell repertoire that has undergone natural selection.

The present disclosure provides compositions and methods for providing a cell replacement therapy to treat various diseases, including pancreatic diseases and diabetes. Specifically, the disclosure provides three-dimensional (3D) cell clusters of transdifferentiated insulin producing cells attached to scaffolds, such as a polysaccharide matrix, in order to provide a cell replacement therapy.

Herein is reported a method for co-cultivating one or more B-cells comprising the step of incubating the one or more B-cells with EL4-B5 cells, whereby the EL4-B5 cells have been obtained/are from a cultivation of EL4-B5 cells that has a cell density of from 600,000 cells/ml up to 1,500,000 cells/ml.

Among the various aspects of the present disclosure is the provision of methods, synthetic DC, and compositions for T cell activation. The present disclosure provides for synthetic dendritic cells (DCs), methods of generating synthetic dendritic cells (DCs), methods of generating T cell-encapsulated gelatin microspheres and microcapsules, methods of activating T cells using synthetic DCs, methods for expanding T cells against individualized antigen-specific mutational antigens using synthetic DCs, and methods of treating a chronic disease (e.g., HIV, HPV) or cancer using the synthetic DCs.

Herein is reported a method for obtaining a B-cell comprising the following steps a) labeling B-cells, b) depositing the labeled B-cells as single cells, c) co-cultivating the single cell deposited B-cells with feeder cells, d) selecting a B-cell proliferating and secreting IgG in step c) and thereby obtaining a B-cell. The labeling can be of IgG.sup.+CD19.sup.+-B-cells, IgG.sup.+CD38.sup.+-B-cells, IgG.sup.+CD268.sup.+-B-cells, IgG.sup.CD138.sup.+-B-cells, CD27.sup.+CD138.sup.+-B-cells or CD3.sup.CD27.sup.+-B-cells. The method can comprise the step of incubating said B-cells at 37 C. for one hour in EL-4 B5 medium prior to the depositing step. The method can also comprise the step of centrifuging said single cell deposited B-cells prior to the co-cultivation. In the co-cultivation a feeder mix comprising interleukin-1beta, and tumor necrosis factor alpha and Staphylococcus aureus strain Cowans cells or BAFF or interleukin-2 and/or interleukin-10 and/or interleukin-6 and/or interleukin-4 can be used.

A nucleic acid molecule comprising a nucleotide sequence encoding a homodimeric IL-10 linked to a transmembrane-intracellular stretch, optionally through a flexible hinge, is provided as well as a mammalian regulatory T cell (Treg) comprising and expressing the nucleic acid molecule and uses thereof.

Described are means, methods and compositions of matter useful for enhancing quality of organ transplants by induction of postmortem regeneration. The disclosure provides administration of regenerative cells and/or factors in a brain dead recipient whose body is maintained in a viable state by life supporting machinery.

Herein is reported a method for co-cultivating one or more B-cells comprising the step of incubating the one or more B-cells with EL4-B5 cells, whereby the EL4-B5 cells have been obtained/are from a cultivation of EL4-B5 cells that has a cell density of from 600,000 cells/ml up to 1,500,000 cells/ml.

Herein is reported a method for co-cultivating one or more B-cells comprising the step of incubating the one or more B-cells with EL4-B5 cells, whereby the EL4-B5 cells have been obtained/are from a cultivation of EL4-B5 cells that has a cell density of from 600,000 cells/ml up to 1,500,000 cells/ml.