摘要:
Disclosed is a method for enhancing the function of a T cell, which is characterized by inhibiting the expression of programmed death-1 ligand 1 (PD-L1) and/or programmed death-1 ligand 2 (PD-L2) in the T cell. Also disclosed is a function-enhanced T cell which is produced by the function enhancement method. Further disclosed is a therapeutic agent comprising the function-enhanced T cell. The T cell can enhance an immune response to cancer, and is useful in an immunotherapy effective for cancer and the treatment or prevention of infectious diseases and autoimmune diseases.
摘要:
Disclosed is a cell which can express a non-natural oligomeric protein, which has, introduced therein, a gene encoding an exogenous polypeptide corresponding to at least one endogenous polypeptide constituting a natural oligomeric protein, and in which the expression of the endogenous polypeptide is inhibited.
摘要:
Provided are a chimeric antigen receptor comprising an extracellular domain capable of binding to an antigen, a transmembrane domain and at least one intracellular domain, the chimeric antigen receptor being characterized in that an intracellular domain of a glucocorticoid-induced tumor necrosis factor receptor (GITR) is contained as the intracellular domain; a nucleic acid encoding the chimeric antigen receptor; a cell expressing the chimeric antigen receptor; and a method for producing the cell.
摘要:
Disclosed is a method for enhancing the function of a T cell, which is characterized by inhibiting the expression of programmed death-1 ligand 1 (PD-L1) and/or programmed death-1 ligand 2 (PD-L2) in the T cell. Also disclosed is a function-enhanced T cell which is produced by the function enhancement method. Further disclosed is a therapeutic agent comprising the function-enhanced T cell. The T cell can enhance an immune response to cancer, and is useful in an immunotherapy effective for cancer and the treatment or prevention of infectious diseases and autoimmune diseases.
摘要:
The present invention provides a method for producing a virus vector, which comprises a step wherein cells that are capable of producing a virus vector are cultured in a culture medium that contains, as active components, a retinoic acid and a histone deacetylase inhibiting substance; and a culture medium for the production of a virus vector, which is characterized by containing, as active components, a retinoic acid and a histone deacetylase inhibiting substance.
摘要:
A method of selecting a marker gene which is useful in identifying cancer; a method of identifying cancer by using this gene; a method of detecting cancer, a kit to be used in the identification or detection method; and a DNA array holding the above gene. Thus, it is possible to obtain a gene which shows a change in the expression dose independently from a gene showing a change in the expression specifically at the proliferation of cells and specifically to each cancer sample. Use of this gene makes it possible to conveniently and quickly identify or detect cancer withou resort to any surgical operations, thereby contributing to the diagnonis and treatment of cancer, etc.
摘要:
A nucleic acid comprising a transcription regulation sequence whose transcription is induced by a trans-acting factor of a human immunodeficiency virus and a gene encoding a polypeptide having an endoribonuclease activity specific to single-stranded RNA, wherein the gene is located in such a position that the expression of the gene can be regulated by the transcription regulation sequence; a method for production of a cell showing an inhibited replication of a human immunodeficiency virus therein, the method comprising the step of introducing the nucleic acid into a cell; and a method for treatment or prevention of a human immunodeficiency virus infection.
摘要:
The present invention provides a method of screening a biologically active substance or a candidate substance for a biologically active substance, possessing an activity for controlling gene expression to the same extent to that of DGE; a gene controlling agent which is effective for maintaining homeostasis in a living body, for instance, purposed for mitigation or prevention of stress; and a method of controlling a gene.