摘要:
The present invention provides methods for producing DCs, which comprise the step of culturing DC precursor cells in the presence of multiple cytokines, dendritic cells produced thereby, and uses thereof. The methods of the present invention enable production of large quantities of DC precursors with a high ability to differentiate into DCs. The present invention enables one to obtain large quantities of DCs from a small number of DC precursor cells, and therefore makes it easier to increase the number of DCs for administration in DC-based anti-tumor immunotherapy, treatment of infection, and such. Thus, an enhancement is expected for the effect of DC vaccines.
摘要:
The present invention provides methods for producing DCs, which comprise the step of culturing DC precursor cells in the presence of multiple cytokines, dendritic cells produced thereby, and uses thereof. The methods of the present invention enable production of large quantities of DC precursors with a high ability to differentiate into DCs. The present invention enables one to obtain large quantities of DCs from a small number of DC precursor cells, and therefore makes it easier to increase the number of DCs for administration in DC-based anti-tumor immunotherapy, treatment of infection, and such. Thus, an enhancement is expected for the effect of DC vaccines.
摘要:
An objective of the present invention is to provide a safe and effective vaccine therapy for Alzheimer's disease. A minus strand RNA viral vector carrying amyloid gene was constructed, and administered intranasally to 24- to 25-months-old APP transgenic mice. The level of serum anti-A 42 antibody was determined and showed to be markedly higher than the control. The results of histological investigation showed that the administration of a vector of the present invention markedly reduced senile plaques in all of the frontal lobe, parietal lobe, and hippocampus. The brain A level was also markedly reduced. Furthermore, the administration of a vector of the present invention did not result in lymphocyte infiltration in the central nervous system.
摘要:
The present invention provides Paramyxovirus vectors encoding angiogenic genes and use of the same. The use of Paramyxovirus vectors enables effective transfer of angiogenic genes into individual tissues. FGF2 gene transferred into ischemic tissues in vivo induces expression of angiogenic genes without causing edema, and prevents necrosis due to ischemia. The vectors of the present invention are suitable for gene therapy targeted to ischemic tissues.
摘要:
An objective of the present invention is to provide vectors for conveniently and efficiently producing ES-like cells in which foreign genes are not integrated into the chromosome. The present inventors discovered methods for producing ES-like cells from somatic cells using chromosomally non-integrating viral vectors. Since no foreign gene is integrated into the chromosome of the produced ES-like cells, they are advantageous in tests and research, and immunological rejection and ethical problems can be avoided in disease treatments.
摘要:
The present invention provides methods for suppressing tumor proliferation comprising the step of inhibiting the expression of PDGF-A or the binding between PDGF-A homodimers and PDGFRα. Activation of the PDGFRα-p70S6K signal transduction pathway by PDGF-AA is an important factor in tumor angiogenesis and relates to the prognosis of patients suffering from tumors. By inhibiting PDGF-A expression in tumors or in their surrounding tissues, or by inhibiting the binding between PDGF-A homodimers and PDGFRα, the formation and retention of tumor vasculature can be inhibited, thereby suppressing tumor proliferation.
摘要:
The present invention provides anticancer agents comprising dendritic cells introduced with RNA viruses. The present invention also provides methods for producing anticancer agents, which comprise the step of preparing dendritic cells introduced with RNA viruses. The present invention also provides methods for treating cancers using dendritic cells introduced with RNA viruses. The present invention provides effective methods for treating cancers, which use RNA viruses and dendritic cells in combination
摘要:
Minus-strand RNA viruses were found to have an effective tumor-suppressive effect even when they did not carry a therapeutically effective gene. The present invention provides anticancer agents comprising a minus-strand RNA virus. Furthermore, the present invention provides methods for producing the anticancer agents, which comprise the step of mixing a minus-strand RNA virus with pharmaceutically acceptable carriers. Furthermore, the present invention provides methods for suppressing cancer, which comprise the step of administering a minus-strand RNA virus to cancer tissues.
摘要:
The present invention provides a method for introducing a gene into a dendritic cell, which includes the step of contacting a minus-strand RNA virus with a dendritic cell. The present invention also provides a method for producing a gene transferred dendritic cell, which includes the step of contacting a minus-strand RNA virus with a dendritic cell. The present invention also provides gene transferred dendritic cells produced by such methods. Furthermore, the present invention provides a method for activating a dendritic cell, which includes the step of contacting a minus-strand RNA virus with a dendritic cell. The present invention enables efficient gene delivery into dendritic cells. Dendritic cells introduced with antigen gene or cytokine gene are useful as vaccine.
摘要:
The present invention relates to methods for treating inflammatory diseases accompanied by bone destruction, comprising the step of administering a viral vector comprising a gene which inhibits signal transduction mediated by fibroblast growth factor-2 (FGF2)-FGF receptor 1-Ras-Raf-MAP kinase to a diseased region. Furthermore, the present invention relates to therapeutic compositions for inflammatory diseases accompanied by bone destruction, which comprise these vectors. By inhibiting FGF2 signal transduction through local administration of viral vectors, both inflammation and bone destruction in inflammatory bone destruction were simultaneously suppressed. The present invention provides disease-specific and effective therapeutic methods, and therapeutic compositions for inflammatory diseases such as osteoarthritis, for which therapy has so far been difficult.