It is an object of the invention to provide novel compositions and methods utilizing immunomodulating agents that can either stimulate or indirectly augment the immune system or in other cases have an immunosuppressive effect. TNFR25 agonists disclosed herein have an anti-inflammatory and healing effect. They can be used, among other things, to treat disease caused by asthma and chronic inflammation such as for example inflammatory bowel diseases including ulcerative colitis and Crohn's Disease. TNFR25 antagonists disclosed herein are capable of inhibiting CD8 T cell-mediated cellular immune responses and can for example, mitigate organ or tissue rejection following a tissue transplantation. TNFR25 agonists disclosed herein represent biological response modifiers that alter the interaction between the body's cellular immune defenses and cancer cells to boost, direct, or restore the body's ability to fight the cancer when given with tumor vaccines. TNFR25 specific immunotoxins disclosed herein are also capable of increasing the effectiveness of a chemotherapeutic regimen by depleting a cancer patient of naturally occurring immunosuppressive cells.

Immunomodulating tumor necrosis factor receptor 25 (tnfr25) agonists, antagonists and immunotoxins

The present invention relates to new vectors, pharmaceutical compositions containing them, and their therapeutical uses. More particularly, it relates to double strand DNA molecules coding for an RNA forming a triple helix with a single strand target nucleic acid. Said molecules act very selectively and efficiently on the expression of genes.

Gene expression control

Proteins derived from the product of tumor suppressor gene p53 and having enhanced functions for therapeutical use are disclosed. The proteins advantageously have enhanced tumour suppressor and programmed cell death inducer functions, particularly in proliferative disease contexts where wild-type p53 protein is inactivated. Nucleic acids coding for such molecules, vectors containing same, and therapeutical use thereof, particularly in gene therapy, are also disclosed.

P53 protein variants and therapeutic uses thereof

A method for controlling in vivo heat-inducible gene expression for provision of therapeutic polypeptide. The method includes the steps of: (a) providing a construct comprising a polynucleotide encoding a therapeutic polypeptide, wherein the polynucleotide is operatively linked to a heat-inducible promoter; (b) administering the construct to a warm-blooded vertebrate at a site at or near the tumor; and (c) applying heat to the site at or near the tumor to express the therapeutic polypeptide, whereby anti-tumor activity is observed.

Method for selective expression of therapeutic genes by hyperthermia

Compositions specific for TNF-receptor superfamily member 25 (TNFRSF25, DR3) modulate the immune response by regulating T regulatory cells.

Method for in vivo expansion of T regulatory cells

Vectors and vector systems are embodied that include a gene encoding a tumor suppressor protein. In one embodiment, the vector includes a gene encoding a tumor suppressor protein and an inducible promoter controlling the gene encoding a tumor suppressor protein. The tumor suppressor protein may be p53 protein. In another embodiment, there is provided a vector system which comprises a first vector including a gene encoding a tumor suppressor protein, and a second vector containing a nucleic acid sequence encoding an antisense sequence complementary to all or a portion of the gene encoding a tumor suppressor protein. In yet another embodiment, there is provided a vector system which comprises a first vector including a gene encoding a tumor suppressor protein, and a second vector containing a gene which encodes a protein which binds to, and thereby inhibits, the tumor suppressor protein. Such vectors and vector systems enable cells transformed thereby to continue to proliferate such that adequate amounts of infectious viral particles, generated from viral vectors including a gene encoding a tumor suppressor protein, can be harvested for administration to patients.

Vectors and vector systems including genes encoding tumor suppressor proteins and producer cells transformed thereby

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Vectors and vector systems including genes encoding tumor suppressor proteins and producer cells transformed thereby