Provided are recombinant cytokine receptors that comprise an IL-2 receptor polypeptide that is tethered to IL-2 cytokine. Also provided herein are Treg cells comprising recombinant cytokine receptors and methods of use.

Provided herein are anti-CD24 antibodies that selectively bind human CD24 expressed in cancer cells but not human CD24 expressed in non-cancerous cells, and glycan-shielded epitopes to which they bind. Also provided are uses of such antibodies and peptides in cancer therapy.

Disclosed is a recombinant polypeptide for facilitating membrane fusion. The recombinant polypeptide having a sequence with at least 80% sequence identity with the ectodomain of p14 fusion-associated small transmembrane (FAST) protein and having a functional myristoylation motif, a transmembrane domain from a FAST protein and a sequence with at least 80% sequence identity with the endodomain of p15 FAST protein. A targeting ligand can be added to the recombinant polypeptide for selective fusion. The recombinant polypeptide can be included in the membrane of a liposome, or the like, to facilitate the delivery of bioactive compounds, such as siRNA, or the recombinant polypeptide can be mixed with a lipid carrier and added to cultured cells to induce cell-cell fusion and heterokaryon formation.

Chimeric antigen receptors for use in treating malignant melanoma and other cancers expressing CS1 are described.

The present disclosure provides compositions and methods relating to modified mini-nucleosome core proteins and/or delivery of nucleic acids. In particular, the present disclosure includes, among other things, non-viral proteinaceous vehicles for delivery of nucleic acids. In various embodiments, non-viral proteinaceous vehicles provided herein include (a) a nucleic acid binding domain; (b) a targeting domain; (c) a nucleic acid release domain; and, optionally. (d) further domains including, e.g., one or more of a stability domain, an oligomerization domain, and/or a linker domain. In various embodiments, the proteinaceous vehicles include one or more modified residues.

The present invention relates to a cell which comprises a chimeric antigen receptor (CAR) and a signal transduction modifying protein, selected from one of the following: (i) a truncated protein which comprises an SH2 domain from a protein which binds a phosphorylated immunoreceptor tyrosine-based activation motif (ITAM), but lacks a kinase domain; (ii) a truncated protein which comprises an SH2 domain from a protein which binds a phosphorylated immunoreceptor tyrosine-based inhibition motif (ITIM) but lacks a phosphatase domain; (iii) a fusion protein which comprises (a) an SH2 domain from a protein which binds a phosphorylated immunoreceptor tyrosine-based activation motif (ITAM) or from a protein which binds a phosphorylated immunoreceptor tyrosine-based inhibition motif (ITIM); and (ii) a heterologous domain.