Patent classifications
C12N5/0784
Generation of dendritic cells from monocytic dendritic precursor cells with GM-CSF in the absence of additional cytokines
The present invention it was determined that dendritic cells could be derived from various sources including peripheral blood monocytes in the presence of only GM-CSF without other cytokines if the monocytes were not activated. By preventing activation, such as by preventing binding of the cells to the surface of the culture vessel, the monocytes do not require the presence of additional cytokines, such as IL-4 or IL-13, to prevent differentiation into a non-dendritic cell lineage. The immature DCs generated and maintained in this manner were CD14.sup.− and expressed high levels of CD1a. Upon maturation by contact with an agent such as, for example, BCG and IFNγ, the cells were determined to express surface molecules typical of mature dendritic cells purified by prior methods and cultured in the presence of GM-CSF and IL-4. The mature dendritic cells produced from monocytes without activation and cultured in GM-CSF alone are suitable for use in dendritic cell-based immunotherapy methods, such as for use in the treatment of disease, including cancer.
GENETICALLY ENGINEERED DENDRITIC CELLS TO ACTIVATE PROTEIN SPECIFIC T CELLS FOR THE TREATMENT OF VIRAL AND OTHER PATHOGENIC INFECTIONS
Provided are genetically engineered DC probes/epitopes that are able to stimulate high numbers of a pathogenic or viral, or degenerative protein (such as the functional spike (Sp), membrane (M), and nucleocapsid (N) protein and amyloid beta and tau protein) and produce protein-specific CD4.sup.+ and CD8.sup.+ T cells ex vivo, which can then be adaptively administered to patients to treat a variety of pathogenic infections, degenerative disorder, including viral infections.
METHODS OF OBTAINING TUMOR-SPECIFIC T CELL RECEPTORS
Provided methods of obtaining a plurality of T cell receptors specifically recognizing a target tumor antigen peptide from an individual that has clinically benefitted from an immunotherapy, such as Multiple Antigen Specific Cell Therapy. Also provided tumor-specific TCRs, engineered immune cells expressing the TCRs and methods of treating a disease using the engineered immune cells.
A METHOD FOR TREATING MULTIPLE SCLEROSIS WITH PEPTIDE-LOADED DENDRITIC CELLS
The present invention provides a composition comprising dendritic cells loaded with hHsp60sp, which dendritic cells are from a subject and have been fixed with paraformaldehyde (PFA). The subject may suffer from an autoimmune disease. Also provided are a method for preparing the composition; recombinant human cells comprising a heterologous gene encoding a fusion protein of HLA-E and hHsp60sp or B7sp, and expressing the fusion protein on the surface of the cells; a method for determining a percentage of maximum inhibition of testing the function of the HLA-E restricted CD8+ Treg cells from a subject, determining whether HLA-E restricted CD8+ Treg cells freshly isolated from a subject are defective, or determining whether defective HLA-E restricted CD8+ Treg cells from a subject are correctable; and a method for correcting defective HLA-E restricted CD8+ Treg cells, treating type 1 diabetes (T1D), or treating multiple sclerosis (MS).
METHOD FOR TREATING TYPE I DIABETES WITH PEPTIDE-LOADED DENDRITIC CELLS
The present invention provides a composition comprising dendritic cells loaded with hHsp60sp, which dendritic cells are from a subject and have been fixed with paraformaldehyde (PFA). The subject may suffer from an autoimmune disease. Also provided are a method for preparing the composition; recombinant human cells comprising a heterologous gene encoding a fusion protein of HLA-E and hHsp60sp or B7sp, and expressing the fusion protein on the surface of the cells; a method for determining a percentage of maximum inhibition of testing the function of the HLA-E restricted CD8+ Treg cells from a subject, determining whether HLA-E restricted CD8+ Treg cells freshly isolated from a subject are defective, or determining whether defective HLA-E restricted CD8+ Treg cells from a subject are correctable; and a method for correcting defective HLA-E restricted CD8+ Treg cells, treating type 1 diabetes (T1D), or treating multiple sclerosis (MS).
EX VIVO ANTIGEN-PRESENTING CELLS OR ACTIVATED CD-POSITIVE T CELLS FOR TREATMENT OF CANCER
This disclosure is directed to methods of preparing dendritic cells or other CD40 bearing antigen-presenting cells and methods of treating cancer by using the dendritic cells or other antigen-presenting cells in combination with anti-chemorepellant agents. This disclosure is further directed to methods of preparing T cells and methods of treating cancer, by activated T cells optionally in combination with anti-chemorepellant agents. The antigen presenting cells of the disclosure are activated by incubation with cancer cells and fusion proteins. The T cells of the disclosures are activated by incubation with activated antigen-presenting cells that were activated by incubation with cancer cells and a fusion protein. In particular, the fusion protein comprises an antigen-binding domain, e.g., an antibody or antibody fragment, and a stress protein domain.
COMPOSITIONS FOR REPROGRAMMING CELLS INTO DENDRITIC CELLS OR ANTIGEN PRESENTING CELLS, METHODS AND USES THEREOF
The present disclosure relates to compositions, nucleic acid constructs, methods and kits thereof for cell induction or reprogramming cells to the dendritic cell state or antigen presenting cell state, based, in part, on the surprisingly effect described herein of novel use and combinations of transcription factors that permit induction or reprogramming of differentiated or undifferentiated cells into dendritic cells or antigen presenting cells. Such compositions, nucleic acid constructs, methods and kits can be used for inducing dendritic cells in vitro, ex vivo, or in vivo, and these induced dendritic cells or antigen presenting cells can be used for immunotherapy applications.
DENDRITIC CELL GENERATING APPARATUS AND METHOD
A cell culture cartridge is provided comprising a plurality of zones geometrically configured to provide for symmetrical fluid flow with each of the plurality of zones to avoid dead areas in flow within each of the plurality of zones. In certain embodiments, at least eight inlets are provided, with an inlet positioned at each corner of the cell culture cartridge. In certain embodiments, a shared outlet is positioned on a top surface of the cell culture cartridge.
METHOD FOR OBTAINING IMMUNO-SUPPRESSIVE DENDRITIC CELLS
The present invention relates to methods for producing immuno-suppressive dendritic cells. The present invention further relates to the use of such cells for treating patients suffering from autoimmune diseases, hypersensitivity diseases, rejection on solid-organ transplantation and/or Graft-versus-Host disease.
METHOD FOR OBTAINING GLOBALLY ACTIVATED MONOCYTES
The present invention relates to methods for producing immuno-stimulatory autologous dendritic cells. The present invention further relates to the use of such cells for treating patients suffering from hyper-proliferative disease such as cancer.