Abstract: The present application provides chimeric proteins comprising an antibody moiety that specifically binds to a component of an influenza virus or a variant thereof, and a positively charged mucoadhesive peptide fragment. Compositions comprising the chimeric proteins described herein are useful for preventing or treating an infection caused by an influenza virus or a variant thereof in an individual.

Abstract: Described herein are immune cells comprising: a T-cell receptor (TCR) and a chimeric stimulating receptor (CSR) that comprises (i) a ligand-binding module that is capable of binding or interacting with a target ligand; (ii) a transmembrane domain; and (iii) a CD30 costimulatory domain, in which the CSR in the immune cells lacks a functional primary signaling domain. Also provided herein are methods of using the same or components thereof (e.g., the CSR) for therapeutic treatment of cancers (e.g., solid tumor cancers).

Abstract: The present application relates to compositions for preventing or treating viral and other microbial infections. In some embodiments, the present application provides chimeric proteins comprising a target-binding moiety that specifically binds to a pathogen that infects through a mucosa, and a positively charged mucoadhesive peptide fragment. Also provided are antibodies and constructs thereof that specifically binds to an S1 subunit of a spike protein of SARS-CoV-2. Compositions comprising the chimeric proteins, antibodies, or constructs described herein are useful for preventing or treating a microbial infection in an individual, such as a coronavirus infection.

Abstract: The present application relates to compositions for preventing or treating viral and other microbial infections. In some embodiments, the present application provides chimeric proteins comprising a target-binding moiety that specifically binds to a pathogen that infects through a mucosa, and a positively charged mucoadhesive peptide fragment. Also provided are antibodies and constructs thereof that specifically binds to an S1 subunit of a spike protein of SARS-CoV-2. Compositions comprising the chimeric proteins, antibodies, or constructs described herein are useful for preventing or treating a microbial infection in an individual, such as a coronavirus infection.

Abstract: The present application relates to compositions for preventing or treating viral and other microbial infections. In some embodiments, the present application provides chimeric proteins comprising a target-binding moiety that specifically binds to a pathogen that infects through a mucosa, and a positively charged mucoadhesive peptide fragment. Also provided are antibodies and constructs thereof that specifically binds to an S1 subunit of a spike protein of SARS-CoV-2. Compositions comprising the chimeric proteins, antibodies, or constructs described herein are useful for preventing or treating a microbial infection in an individual, such as a coronavirus infection.