Abstract: The present disclosure relates to the in vivo prevention or treatment of hematologic malignancy relapse using a TNFR2 antagonist (an anti TNFR2 antagonist antibody) (i) for use in the prevention or treatment of hematologic malignancy relapse after allogeneic hematopoietic stem cell transplantation (AHCT) or after a treatment with lymphocytes and (ii) for use in enhancing the graft-versus-leukemia-activity (GVL activity) of a hematopoietic stem cell transplantation (HCT) or a treatment with lymphocytes.

Abstract: The present disclosure relates to the in vivo prevention or treatment of hematologic malignancy relapse using a TNFR2 antagonist (an anti TNFR2 antagonist antibody) (i) for use in the prevention or treatment of hematologic malignancy relapse after allogeneic hematopoietic stem cell transplantation (AHCT) or after a treatment with lymphocytes and (ii) for use in enhancing the graft-versus-leukemia-activity (GVL activity) of a hematopoietic stem cell transplantation (HCT) or a treatment with lymphocytes.

Abstract: The present invention relates methods and compositions for preventing or treating various immune diseases including graft-versus-host disease (GVHD) using populations or compositions of immunoregulatory T cells specific for an irrelevant antigen; such cells being activated in vivo by a simultaneous, separate or sequential administration of said antigen.

Abstract: The present invention relates to methods and compositions for preventing or treating various immune diseases including graft-versus-host disease (GVHD) using populations or compositions of immunoregulatory T cells specific for an irrelevant antigen; such cells being activated in vivo by a simultaneous, separate or sequential administration of said antigen.

Abstract: The present invention relates to the fields of biology, genetics and medicine. The invention discloses methods and compositions for treating various diseases using populations or compositions of immunoregulatory T cells. The invention discloses that regulatory T cells may be produced and used to control in vivo various pathological conditions, including diseases associated with abnormal T cell activity. The invention relates to the manufacture of such regulatory T cell compositions as well as to their uses for cell therapy treatment. The invention is particularly suited for controlling graft versus host disease in subjects undergoing transplantation (e.g., bone marrow transplantation).

Abstract: A recombinant vector comprising a gene encoding a Herpes Simplex Virus Type 1 thymidine kinase (HSV1-TK) comprising a deletion in the 5' sequence upstream of the second ATG initiation codon of the complete HSV1-TK sufficient to inhibit transcription initiation from a cryptic promoter site contained within the 5' sequence, wherein the gene is under the control of a promoter is disclosed for use as a suicide gene both in vitro and in vivo. The HSV1-TK produced by the strong expression of the modified gene is toxic to cells in the presence of nucleoside analogs, whereas weak expression of the gene is not toxic to cells. The deletion can comprise all or part of the first initiation codon and the vector can be a retrovirus. As also disclosed are cells transduced with the vector.