Provided is an engineered immune cell comprising on its surface a recognition molecule that comprises a binding moiety specifically binding to a target molecule on the surface of a target cell, wherein the target molecule comprises an extracellular domain, and wherein the immune cell is capable of killing a target cell that comprises on its surface the target molecule. In one aspect, the binding moiety specifically binds to a distal portion of the extracellular domain, and the immune cell is capable of killing a target cell that comprises on its surface both the target molecule and the recognition molecule. In another aspect, the binding moiety specifically binds to a proximal portion of the extracellular domain, and the engineered immune cell has no or reduced capability of killing a target cell comprising on its surface both the target molecule and the recognition molecule.

Siglec-15 binding molecules are provides. The molecules are typically an antibody or antigen binding fragment thereof that immunospecifically binds to Siglec-15. Siglec-15 ligand-binding molecules are also provided. The molecules are typically Siglec-15 polypeptide or fusion protein. Methods of using the molecules to reduce Siglec-15 mediated immunosuppression in a subject in need thereof are also provided.

Provided are anti-CD4 immune cell receptors that comprise an extracellular domain comprising a CD4 binding moiety that specifically binds to an epitope within a certain domain of CD4, a transmembrane domain, and an intracellular signaling domain. Also provided are engineered immune cells comprising such anti-CD4 immune cell receptors and uses thereof.

The disclosure provides immune cells comprising a first activator receptor specific to CEA, and a second inhibitory receptor, and methods of making and using same for the treatment of cancer.

The present invention provides a medicine comprising a Toll-like receptor agonist, LAG-3 protein, a variant or derivative thereof.

Disclosed herein, are nanoparticles comprising one or more immune-tolerant elastin-like polypeptide tetramers and one or more immune-tolerant elastin-like fusion molecules. Also, disclosed herein are pharmaceutical compositions including the nanoparticles; methods of administering the nanoparticles to patients for the treatment of cancer; and methods of making the nanoparticles.

The present invention provides a medicine comprising a Toll-like receptor agonist, LAG-3 protein, a variant or derivative thereof.

Some embodiments of the methods and compositions provided herein relate to chimeric cytokine receptors. In some embodiments, a chimeric cytokine receptor can include an IL-7 tethered to an extracellular IL-7 receptor domain, and an intracellular IL-21 receptor domain linked to the extracellular IL-7 receptor domain. In some embodiments, a T cell containing a chimeric cytokine receptor can be readily activated and/or expanded in the absence of an exogenous cytokine.

Some embodiments of the methods and compositions provided herein relate to chimeric cytokine receptors. In some embodiments, a chimeric cytokine receptor can include an IL-7 tethered to an extracellular IL-7 receptor domain, and an intracellular IL-21 receptor domain linked to the extracellular IL-7 receptor domain. In some embodiments, a T cell containing a chimeric cytokine receptor can be readily activated and/or expanded in the absence of an exogenous cytokine.

The present disclosure relates to anti-TRBC1 antigen binding domains characterized by the sequences of the variable chains. The CDRs sequences of the variable chains are: (VH CDR1) GYTFT, (VH CDR2) NPYNDDIQS, (VH CDR3) GAGY-NFDGAYRFFDF; and (VL CDR1) RSSQRLVHSNGNTYL, (VL CDR2) RVSNRFP, (VL CDR3) SQSTHVPYT. The claimed humanized antibodies derive from the murine JOVI antibody. Uses in cancer therapy.