Nanoparticle compositions for delivery of nucleic acids to subjects including carriers comprising sugar functionalized nucleic acid carriers, and therapeutic or immunogenic nucleic acid agents enclosed within the delivery molecules are described. Methods for treating or preventing diseases or conditions in a subject by administering the nanoparticle compositions that provide immune responses and synergistic therapeutic or preventive effects are provided.

Nanoparticles comprising micheliolide (MCL) or derivatives thereof, and optionally additional therapeutic agents, such as chemotherapeutic agents, are described. Also described are methods of treating diseases, such as cancer, comprising the use of combinations of MCL or a derivative thereof with X-ray irradiation and/or other therapeutic agents, such as immune checkpoint inhibitors. The use of the combinations can provide synergistic anticancer therapeutic efficacy, for example, as the MCL or derivative thereof can both sensitize cancer cells to therapy and target resistant cancer stem cells (CSCs) for selective cell death.

Compositions related to spherical nucleic acids (SNAs) with antisense oligonucleotides and methods of treatment of diseases and disorders are disclosed therein. In particular, the antisense oligonucleotides are targeted to a region in a pre-mRNA of interest to regulate pre-mRNA splicing.

A nano small peptide FH and its use in preparation of drugs for treating and preventing fundus vascular diseases are provided. The artificially synthesized nano small peptide has a molecular formula of X-FFVLK-KQKRPRH (SEQ ID NO: 1), wherein the X is C.sub.12, C.sub.14, C.sub.16, or C.sub.18. The nano small peptide of the present invention can specifically select receptors to encapsulate sSema4D protein, and the concentration of sSema4D is effectively reduced, so that the sSema4D is unable to bind to any receptors, thus changing the shortcoming of few inhibitory targets of antibody drugs. The nano small peptide molecule with a simple structure can be mixed with antibody drugs without causing mutual immune reactions, so as to achieve the effect of reducing multiple pro-angiogenesis molecules.

Provided is a polymer comprising a hydrolysable polymer backbone, the polymer backbone comprising (i) monomer units with a side chain comprising a hydrophobic group; (ii) monomer units with a side chain comprising an oligoamine or polyamine; and optionally (iii) monomer units with a side chain comprising an ionizable group, as well as a method of preparing said polymer, and a method of delivering a nucleic acid and/or polypeptide to a cell using the polymer.

The present invention provides myosin derived peptides, variants and derivative compounds that are anti-coagulant. Also provided in the invention are antibodies that specifically target the peptides or epitopes presented thereon. Further provided in the invention are methods directed to using the anti-coagulant compounds described herein in therapeutic applications, e.g., inhibiting myosin-supported prothrombin activation to reduce the risk of acute trauma coagulopathy in post-trauma patients or inhibiting cardiac myosin-supported prothrombin activation to reduce the risk of coronary thrombosis.

The invention provides novel polymers, crosslinked polymer-nucleic acid complexes, lipid-polymer-nucleic acid-based complexation and nanoassemblies, and nanoassembly-based intracellular delivery of nucleic acids and controlled release thereof upon degradation of the nanoassemblies in response to specific microenvironment in the cell, and compositions and methods of preparation and use thereof.

The present disclosure is directed to a system for displaying antigens. This system includes an outer membrane vesicle comprising a lipid bilayer and a synthetic antigen receptor comprising an outer membrane scaffold protein fused to a biotin-binding protein, where the outer membrane scaffold protein is incorporated in the lipid bilayer and the biotin-binding protein is displayed outside the outer membrane vesicle. Also disclosed are therapeutic compositions, nucleic acid constructs, expression vectors, and methods of eliciting an immune response in a subject.

The present invention provides, a cationic lipid represented by the formula (1) (wherein each symbol is as defined in the specification), a lipid membrane structure using the aforementioned cationic lipid, a nucleic acid-introducing agent using the aforementioned cationic lipid, and a method for introducing a nucleic acid by using the aforementioned nucleic acid-introducing agent.

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Compositions and methods for treating cancer that include administering a therapeutically effective amount of a tumor suppressor mRNA complexed with a delivery vehicle as described herein, e.g., a nanoparticle.