The present application relates to conjugates comprising an amatoxin, a target-binding moiety wherein the target is CD37, i.e., a CD37-binding moiety, and optionally a linker linking said amatoxin and said CD37-binding moiety. The invention further relates to the synthesis of said conjugates. In addition, the invention relates to a pharmaceutical composition comprising such conjugate for use in the treatment of immune cell-, particularly B-cell and/or lymphoma associated diseases and/or malignancies.

The present application relates to conjugates comprising an amatoxin, a target-binding moiety wherein the target is CD37, i.e., a CD37-binding moiety, and optionally a linker linking said amatoxin and said CD37-binding moiety. The invention further relates to the synthesis of said conjugates. In addition, the invention relates to a pharmaceutical composition comprising such conjugate for use in the treatment of immune cell-, particularly B-cell and/or lymphoma associated diseases and/or malignancies.

The present invention relates to a composition for enhancing a survival rate of stem cells, including an immunosuppressant, and to a use thereof. According to the present invention, a survival rate of stem cells can be remarkably enhanced using a composition including an immunosuppressant, and a therapeutic effect of stem cells can be improved on the basis of the enhancement. The composition can overcome an immune response caused by the administration of xenogeneic cells so as to accurately verify the stability and efficacy of cells, and thus will be able to be utilized as a mesenchymal stem cell therapeutic agent that maximizes a therapeutic effect of stem cells.

The present invention relates to a composition for enhancing a survival rate of stem cells, including an immunosuppressant, and to a use thereof. According to the present invention, a survival rate of stem cells can be remarkably enhanced using a composition including an immunosuppressant, and a therapeutic effect of stem cells can be improved on the basis of the enhancement. The composition can overcome an immune response caused by the administration of xenogeneic cells so as to accurately verify the stability and efficacy of cells, and thus will be able to be utilized as a mesenchymal stem cell therapeutic agent that maximizes a therapeutic effect of stem cells.

The present disclosure provides T-cell modulatory multimeric polypeptides (T-Cell-MMP) and their epitope conjugates comprising at least one immunomodulatory polypeptide (“MOD”) that may be selected to exhibit reduced binding affinity to a cognate co-immunomodulatory polypeptide (“Co-MOD”). The epitope may be, for example, a cancer-associated epitope, an infectious disease-associated epitope, or a self-epitope. The T-Cell-MMP-epitope conjugates are useful for modulating the activity of a T-cell by delivering immunomodulatory peptides, such as IL-2 or IL-2 variants that exhibit reduced binding affinity for the IL-2R, to T-cells in an epitope selective/specific manner, and accordingly, for treating individuals with a cancer, infectious disease or autoimmune disorder.

The present disclosure provides T-cell modulatory multimeric polypeptides (T-Cell-MMP) and their epitope conjugates comprising at least one immunomodulatory polypeptide (“MOD”) that may be selected to exhibit reduced binding affinity to a cognate co-immunomodulatory polypeptide (“Co-MOD”). The epitope may be, for example, a cancer-associated epitope, an infectious disease-associated epitope, or a self-epitope. The T-Cell-MMP-epitope conjugates are useful for modulating the activity of a T-cell by delivering immunomodulatory peptides, such as IL-2 or IL-2 variants that exhibit reduced binding affinity for the IL-2R, to T-cells in an epitope selective/specific manner, and accordingly, for treating individuals with a cancer, infectious disease or autoimmune disorder.

The present invention aims to solve a problem in T-cell transfer therapy and the like, which is T-cell exhaustion, and to provide a technique to enhance T cell activity. T cells having cell surface markers of CD45RA.sup.+ and CCR7.sup.+ can be produced by culturing activated T cells in the presence of (a) a conditioned medium derived from stromal cells or (b) CXCL12.

Disclosed are novel means, protocols, and compositions of matter for creating targeted immune responses and/or induction of immunological memory towards the tumor vasculature. In one embodiment pluripotent stem cells are transfected with one or more genes capable of eliciting immunity, induced to differentiate into endothelial-like cells which resemble the tumor endothelial cells, and utilized as a vaccine. In some embodiment's genes are engineered under control of specific promoters to allow for various specificities of activity. In one specific embodiment pluripotent stem cells engineered to endow properties capable of inducing expression of the α-Gal epitope (Galα1,3Galα1,4GlcNAc-R). Addition of adjuvants to enhance antigen presentation of the vaccine composition, as well as means of stimulating systemic enhancement of circulating endothelial specific T cells are also disclosed.

Disclosed are novel means, protocols, and compositions of matter for creating targeted immune responses and/or induction of immunological memory towards the tumor vasculature. In one embodiment pluripotent stem cells are transfected with one or more genes capable of eliciting immunity, induced to differentiate into endothelial-like cells which resemble the tumor endothelial cells, and utilized as a vaccine. In some embodiment's genes are engineered under control of specific promoters to allow for various specificities of activity. In one specific embodiment pluripotent stem cells engineered to endow properties capable of inducing expression of the α-Gal epitope (Galα1,3Galα1,4GlcNAc-R). Addition of adjuvants to enhance antigen presentation of the vaccine composition, as well as means of stimulating systemic enhancement of circulating endothelial specific T cells are also disclosed.

The present invention relates to anti-human OX40L antibodies, new medical uses and methods.