The present invention is related to the field of targeted drug delivery. In particular, the particles and compositions described herein are used to deliver drugs to treat the diseases and conditions of interest. These particles and compositions include, but are not limited to, the lipopeptide complexes that mimic human high-density lipoproteins but contain apolipoprotein fragments or combination thereof.

The present invention relates to nanoparticles complexed with biomacromolecule agents configured for treating, preventing or ameliorating various types of disorders, and methods of synthesizing the same. In particular, the present invention is directed to compositions comprising nanoparticles (e.g., synthetic high density lipoprotein (sHDL)) carrying biomacromolecule agents (e.g., nucleic acid, peptides, glycolipids, etc.), methods for synthesizing such nanoparticles, as well as systems and methods utilizing such nanoparticles (e.g., in diagnostic and/or therapeutic settings).

Disclosed is an immunogenic formulation that induces protection against Shiga Toxin-Producing Escherichia coli (STEC), the formulation comprising: one or more chimeric proteins derived wholly or in part from OmpT and Hes proteins of STEC; and at least one physiologically or pharmaceutically acceptable excipient, carrier and/or diluent.

Described herein are compositions and techniques related to generation and therapeutic application of artificial synapses. Artificial synapses are engineered extracellular vesicles, including exosomes, which incorporate sticky binders on their surface to anchor signaling domains against biological targets, such as receptors. These engineered additives can be organized in genetic vector constructs, expressed in mammalian cells, wherein the sticky binders attach to extracellular vesicles such as exosomes, thereby presenting their joined signaling domains which are rapidly taken up by recipient cells. Artificial synapses adopt the hallmark biophysical and biochemical features of extracellular vesicles, allowing for rapid deployment and scale-up. Importantly, this strategy can allow for kinetically favorable signal generation and signal propagation. This includes, for example, increasing density of agonist presentation to support receptor clustering—an onerous barrier for traditional receptor targeting strategies.

Methods of preparing crosslinked spherical nucleic acids (SNAs) using thermoresponsive traceless templates, such as PEO-PPO-PEO block copolymers. The crosslinks can be added between oligonucleotides within the same SNA or oligonucleotides between multiple different SNAs.

Disclosed herein are spherical high-density lipoprotein-like nanoparticles (HDL-NP) having a soft material core (e.g., a lipid-conjugated inorganic core). Also disclosed herein are methods for synthesizing the spherical HDL-NPs. Also disclosed herein are methods for treating disorders such as cardiovascular disease, cancer, inflammatory disorders or reducing NF-kB activity with the spherical HDL-NPs.

The present invention relates to a novel use for HDL-ApoM-S1P (a high density lipoprotein in which apolipoprotein M is impregnated with sphingosine-1-phosphate), and more particularly, to using HDL-ApoM-S1P to prevent, improve, or treat degenerative brain disorders (in particular, Alzheimer's disease), cognitive disorders, learning disabilities, and memory disorders, and using HDL-ApoM-S1P to improve cognitive ability, learning ability, and memory. The HDL-ApoM-S1P according to the present invention not only alleviates neuroinflammation but also significantly exhibits improvement effects of cognitive disorder, learning disability, and memory disorder with respect to individuals suffering from degenerative brain disorders (in particular, Alzheimer's disease), and exhibits an effect of greatly reducing amyloid beta and tau deposition. Moreover, increased HDL-ApoM-S1P in the body also has an excellent effect of improving the cognitive, learning, and memory abilities of non-disabled individuals.

Techniques regarding the transportation and/or delivery of molecular cargo by exosomes are provided. For example, one or more embodiments described herein can comprise a molecule, which can comprise a chemically modified molecular cargo bonded to a surface biomolecule of an exosome. The surface biomolecule can be located on a bilayer membrane of the exosome opposite a cytoplasm of the exosome.

Provided are liposome constructs for delivery of urea to the vitreoretinal interface of the eye. The liposome constructs are agglomerates of small lamellar vesicles (SUVs) and have a greater density than the vitreal fluid, such that they sink to the back of the eye rather than dispersing throughout the vitreous.

The present invention relates to nanoparticles complexed with biomacromolecule agents configured for treating, preventing or ameliorating various types of disorders, and methods of synthesizing the same. In particular, the present invention is directed to compositions comprising nanoparticles (e.g., synthetic high density lipoprotein (sHDL)) carrying biomacromolecule agents (e.g., nucleic acid, peptides, glycolipids, etc.), methods for synthesizing such nanoparticles, as well as systems and methods utilizing such nanoparticles (e.g., in diagnostic and/or therapeutic settings).