The invention describes anti-cancer therapies comprising using an LRP5 antagonist in combination with an anti-PD1 antibody, each as described herein.

Described herein are methods for producing and utilizing an alternative signal 1 domain to construct an optimally signaling CAR. Alternative signal 1 domains of the present technology are based on alternatives to CD3ζ, including mutated ITAMs from CD3ζ (which contains 3 IT AM motifs), truncations of CD3ζ, and alternative splice variants known as CD3s, CD3 theta, and artificial constructs engineered to express fusions between CD3s or CD30 and CD3ζ. CAR polypeptides comprising alternative signal 1 domains are utilized to engineer CAR T cells. Further, this technology related to methods of treating cancer by administering to a subject in need thereof CAR T cells comprising alternative signal 1 domains.

The embodiments of the present disclosure relate to antigens of β-coronaviruses, preparation methods and uses thereof. The amino acid sequence of the antigen of the β-coronavirus includes an amino acid sequence arranged in a (A-B)-(A-B) pattern or an amino acid sequence arranged in a (A-B)-C-(A-B) pattern or an amino acid sequence arranged in a (A-B)-(A-B′) pattern or an amino acid sequence arranged in a (A-B)-C-(A-B′) pattern. The antigen of the β-coronavirus has a single-chain dimer structure. A single-chain dirtier expressed according to examples of the present disclosure is stable in content and has excellent immunogenicity as an antigen of a β-coronavirus, and a vaccine prepared by using the single-chain dimer as an antigen of a β-coronavirus can elicit high-titer neutralizing antibodies in mice.

The present invention includes compositions and methods for the expression, secretion and use of novel compositions for use as, e.g., vaccines and antigen delivery vectors, to delivery antigens to antigen presenting cells. In one embodiment, the vector is an anti-CD40 antibody, or fragments thereof, and one or more antigenic peptides linked to the anti-CD40 antibody or fragments thereof, including humanized antibodies.

Provided herein are inhibitory chimeric antigen receptor compositions and cells comprising such compositions. Also provided are methods of using inhibitory chimeric antigen receptors and cells.

As described below, the present invention features genetically modified immune cells having enhanced anti-neoplasia activity, resistance to immune suppression, and decreased risk of eliciting a graft versus host reaction, or a combination thereof. The present invention also features methods for producing and using these modified immune effector cells.

The present disclosure provides methods comprising administering to the individual an effective amount of an agent that decreases or inhibits TIGIT expression and/or activity and an anti-cancer agent and/or an anti-cancer therapy. Further provided are kits comprising an anti-cancer agent, an agent that decreases or inhibits TIGIT expression and/or activity, or both, as well as instructions for use thereof.

Provided herein, inter alia, are compositions and methods including recombinant oncolytic viruses expressing CD47 antibody for the treatment of diseases including cancer, immune disorders, and infectious disease.

The present invention is directed to a monoclonal anti-human PD-L1 antibody, or a single-chain variable fragment (scFv), comprising V.sub.H having the amino acid of SEQ ID NO: 3 and V.sub.L having the amino acid of SEQ ID NO: 5. The present invention is also directed to a chimeric antigen receptor fusion protein comprising from N-terminus to C-terminus: (i) a single-chain variable fragment (scFv) of the present invention, (ii) a transmembrane domain, (iii) at least one co-stimulatory domains, and (iv) an activating domain. The inventors have shown that the PD-L1 CAR-T cells of the present invention are more effective than Avelumab PD-L1 CAR-T cells in killing several cancer cell lines. PD-L1 CAR-T can be used alone or in combination with other agent in an immunotherapy.

The present invention provides a modified human cancer cell comprising a recombinant polynucleotide encoding an allele of a human leukocyte antigen gene. The present invention also provides methods for selecting a whole-cell cancer vaccine for a subject having cancer and methods of treating cancer using whole-cell cancer vaccines of the present invention. In addition, the present invention provides a method of determining the HER2 status of a cell. Compositions and kits are also provided herein.