Abstract: SIRP1alpha-41BBL fusion proteins are provided. Accordingly, there is provided a SIRPalpha-41BBL fusion protein comprising a single amino acid linker between the SIRPalpha and the 41BBL. Also there is provided a SIRPalpha-41BBL fusion protein in a form of at least a homo-trimer. Also provided are polynucleotides and nucleic acid constructs encoding the SIRP1alpha-41BBL fusion protein, host-cells expressing the SIRP1alpha-41BBL fusion protein and methods of use thereof.

Abstract: Type I membrane proteins heterodimers are provided. Accordingly, there is provided a heterodimer comprising two polypeptides selected from the group consisting of SIRPalpha, PD1, TIGIT, LILRB2 and SIGLEC10, wherein each of the two polypeptides is capable of binding a natural binding pair thereof, and wherein the heterodimer does not comprise an amino acid sequence of a type II membrane protein capable of binding a natural binding pair thereof. Also provided are nucleic acid constructs and systems encoding the heterodimer, host-cells expressing same and methods of use thereof.

Abstract: SIRP1alpha-41BBL fusion proteins are provided. Accordingly, there is provided a SIRPalpha-41BBL fusion protein comprising a single amino acid linker between the SIRPalpha and the 41BBL. Also there is provided a SIRPalpha-41BBL fusion protein in a form of at least a homo-trimer. Also provided are polynucleotides and nucleic acid constructs encoding the SIRP1alpha-41BBL fusion protein, host-cells expressing the SIRP1alpha-41BBL fusion protein and methods of use thereof.

Abstract: PD1-41BBL fusion proteins are provided. Accordingly, there is provided a PD1-41BBL fusion protein comprising a single amino acid linker between the PD1 and the 41BBL. Also there is provided a PD1-41BBL fusion protein, wherein the PD1 amino acid is 123-166 amino acids in length and/or wherein the PD1 amino acid sequence comprises SEQ ID NO: 2 and/or wherein the fusion protein is in a form of at least a homo-trimer. Also provided are polynucleotides and nucleic acid constructs encoding the PD1-41BBL fusion protein, host-cells expressing the PD1-41BBL fusion protein and methods of use thereof.

Abstract: PD1-41BBL fusion proteins are provided. Accordingly, there is provided a PD1-41BBL fusion protein comprising a single amino acid linker between the PD1 and the 41BBL. Also there is provided a PD1-41BBL fusion protein, wherein the PD1 amino acid is 123-166 amino acids in length and/or wherein the PD1 amino acid sequence comprises SEQ ID NO: 2 and/or wherein the fusion protein is in a form of at least a homo-trimer. Also provided are polynucleotides and nucleic acid constructs encoding the PD1-41BBL fusion protein, host-cells expressing the PD1-41BBL fusion protein and methods of use thereof.

Abstract: PD1-CD70 fusion proteins are provided. Accordingly, there is provided a PD1-CD70 fusion protein comprising a single amino acid linker between the PD1 and the CD70. Also there is provided a PD1-CD70 fusion protein, wherein the PD1 amino acid is 123-166 amino acids in length and/or wherein the PD1 amino acid sequence comprises SEQ ID NO: 2 and/or wherein the fusion protein is in a form of at least a homo-trimer. Also provided are polynucleotides and nucleic acid constructs encoding the PD1-CD70 fusion protein, host-cells expressing the PD1-CD70 fusion protein and methods of use thereof.

Abstract: PD1-CD70 fusion proteins are provided. Accordingly, there is provided a PD1-CD70 fusion protein comprising a single amino acid linker between the PD1 and the CD70. Also there is provided a PD1-CD70 fusion protein, wherein the PD1 amino acid is 123-166 amino acids in length and/or wherein the PD1 amino acid sequence comprises SEQ ID NO: 2 and/or wherein the fusion protein is in a form of at least a homo-trimer. Also provided are polynucleotides and nucleic acid constructs encoding the PD1-CD70 fusion protein, host-cells expressing the PD1-CD70 fusion protein and methods of use thereof.

Abstract: Heterodimers are provided. Accordingly, there is provided a heterodimer comprising a dimerizing moiety attached to at least one amino acid sequence of at least one type I membrane protein capable of at least binding a natural ligand or receptor of said at least one type I membrane protein and to at least one amino acid sequence of at least one type II membrane protein capable of at least binding a natural ligand or receptor of said at least one type II membrane protein. Also provided are nucleic acid constructs and systems encoding the heterodimer, host-cells expressing same and methods of use thereof.

Abstract: SIRPalpha-CD70 fusion proteins are provided. Accordingly, there is provided a SIRPalpha-CD70 fusion protein comprising a single amino acid linker between the SIRPalpha and the CD70. Also there is provided a SIRPalpha-CD70 fusion protein in a form of at least a homo-trimer. Also provided are polynucleotides and nucleic acid constructs encoding the SIRPalpha-CD70 fusion protein, host-cells expressing the SIRPalpha-CD70 fusion protein and methods of use thereof.

Abstract: SIRPalpha-CD70 fusion proteins are provided. Accordingly, there is provided a SIRPalpha-CD70 fusion protein comprising a single amino acid linker between the SIRPalpha and the CD70. Also there is provided a SIRPalpha-CD70 fusion protein in a form of at least a homo-trimer. Also provided are polynucleotides and nucleic acid constructs encoding the SIRPalpha-CD70 fusion protein, host-cells expressing the SIRPalpha-CD70 fusion protein and methods of use thereof.

Abstract: SIRP1alpha-41BBL fusion proteins are provided. Accordingly, there is provided a SIRPalpha-41BBL fusion protein comprising a single amino acid linker between the SIRPalpha and the 41BBL. Also there is provided a SIRPalpha-41BBL fusion protein in a form of at least a homo-trimer. Also provided are polynucleotides and nucleic acid constructs encoding the SIRP1alpha-41BBL fusion protein, host-cells expressing the SIRP1alpha-41BBL fusion protein and methods of use thereof.

Abstract: SIRP1alpha-41BBL fusion proteins are provided. Accordingly, there is provided a SIRPalpha-41BBL fusion protein comprising a single amino acid linker between the SIRPalpha and the 41BBL. Also there is provided a SIRPalpha-41BBL fusion protein in a form of at least a homo-trimer. Also provided are polynucleotides and nucleic acid constructs encoding the SIRP1alpha-41BBL fusion protein, host-cells expressing the SIRP1alpha-41BBL fusion protein and methods of use thereof.

Abstract: PD1-41BBL fusion proteins are provided. Accordingly, there is provided a PD1-41BBL fusion protein comprising a single amino acid linker between the PD1 and the 41BBL. Also there is provided a PD1-41BBL fusion protein, wherein the PD1 amino acid is 123-166 amino acids in length and/or wherein the PD1 amino acid sequence comprises SEQ ID NO: 2 and/or wherein the fusion protein is in a form of at least a homo-trimer. Also provided are polynucleotides and nucleic acid constructs encoding the PD1-41BBL fusion protein, host-cells expressing the PD1-41BBL fusion protein and methods of use thereof.

Abstract: SIRP1alpha-41BBL fusion proteins are provided. Accordingly, there is provided a SIRPalpha-41BBL fusion protein comprising a single amino acid linker between the SIRPalpha and the 41BBL. Also there is provided a SIRPalpha-41BBL fusion protein in a form of at least a homo-trimer. Also provided are polynucleotides and nucleic acid constructs encoding the SIRP1alpha-41BBL fusion protein, host-cells expressing the SIRP1alpha-41BBL fusion protein and methods of use thereof.

Abstract: PD1-CD70 fusion proteins are provided. Accordingly, there is provided a PD1-CD70 fusion protein comprising a single amino acid linker between the PD1 and the CD70. Also there is provided a PD1-CD70 fusion protein, wherein the PD1 amino acid is 123-166 amino acids in length and/or wherein the PD1 amino acid sequence comprises SEQ ID NO: 2 and/or wherein the fusion protein is in a form of at least a homo-trimer. Also provided are polynucleotides and nucleic acid constructs encoding the PD1-CD70 fusion protein, host-cells expressing the PD1-CD70 fusion protein and methods of use thereof.

Abstract: SIRPalpha-CD70 fusion proteins are provided. Accordingly, there is provided a SIRPalpha-CD70 fusion protein comprising a single amino acid linker between the SIRPalpha and the CD70. Also there is provided a SIRPalpha-CD70 fusion protein in a form of at least a homo-trimer. Also provided are polynucleotides and nucleic acid constructs encoding the SIRPalpha-CD70 fusion protein, host-cells expressing the SIRPalpha-CD70 fusion protein and methods of use thereof.

Abstract: Lectin-binding proteins and their therapeutic use. In particular, described are the targeting and targeting-enhanced multimerization and activation of galectins. Provided is a galectin-conjugate including at least one galectin molecule conjugated to a non-galectin cell targeting means. Exemplary targeting means include targeting means able to bind EGP2, a pancarcinoma-associated cell surface target antigen, CD antigen, such as CD7 or CD38, or a TNF family member, such as TRAIL-R. The targeting means may comprise an antibody or a functional fragment thereof, such as a single chain variable antibody fragment (scFv). Also provided is the use of a galectin-conjugate for treating a disease, like cancer or an immune disorder, such as auto-immune disease, allergic disorder, auto-immune encephalomyelitis, arthritis, colitis, hepatitis, asthma, multiple sclerosis, transplant rejection, Graft-versus-host disease (GVHD) and/or inflammatory bowel disease.