Disclosed herein, in certain embodiments, are recombinant Arc and endogenous Gag polypeptides, and methods of using recombinant Arc and endogenous Gag polypeptides.

The present disclosure relates to nanoparticles containing cellular membrane and uses thereof. The nanoparticle comprises an interior compartment (or an inner core) and an outer surface (or shell) comprising a cellular membrane derived from a cell, said interior compartment (or an inner core) not providing a solid support to said cellular membrane in said outer surface (or shell). The present disclosure also relates to processes of making the nanoparticles. The present disclosure further relates to compositions comprising the nanoparticles and methods of using the nanoparticles.

This invention is directed to, inter alia, compositions and methods for restoring normal microRNA (miR) expression in chondrosarcoma cells as well as methods for treating and diagnosing chondrosarcoma in individuals in need thereof.

The present disclosure includes the use of a miRNA inhibitor for treating a tauopathy associated with a decreased level of SIRT1 protein or SIRT1 gene expression, PGC-1α protein and/or PGC-α gene expression, and/or CD36 and/or CD36 gene expression.

The present invention relates to: a lyophilized preparation of a pathogen cell wall skeleton, the preparation containing the pathogen cell wall skeleton as an active ingredient; various live-pathogen-mimetic nanoparticles produced by using the lyophilized preparation and antagonists of toll-like receptor 7 or 8 which can induce the efficacy of the live pathogen; a use thereof; and a production method thereof.

Provided herein are non-cell particles, e.g. virus particles or virus-like particles, such as pseudotyped lentiviral-like particles, containing an exogenous CD24 or a biologically active portion of CD24. In some embodiments, the non-cell particles, e.g. virus particles or virus-like particles, such as pseudotyped lentiviral-like particles, can further contain an exogenous CD47 or a biologically active portion of CD47. Also provided herein are compositions containing such non-cell particles and methods of making and using the non-cell particles.

The present disclosure relates to extracellular vesicles, e.g., exosomes, comprising an AAV and a scaffold protein. In some aspects, the AAV is in the lumen of the extracellular vesicle. In some aspects, the AAV is associated with the luminal surface of the extracellular vesicle. In some aspects, the AAV is associated with the exterior surface of the extracellular vesicle. Also provided herein are methods for producing the exosomes and methods for using the exosomes to treat and/or prevent diseases or disorders.

The present disclosure provides a composition comprising (a) exosome-like nanovesicles or exosomes and (b) a carrier, wherein the exosome-like nanovesicles or exosomes are extracted from Withania somnifera and methods of effecting a change in hair appearance, hair growth, hair pigmentation, hair follicle size or hair shaft size, comprising administering to the skin of a subject in need thereof an effective amount of such a composition.

The invention relates to virus like particles (VLP) associated with a lysosomal enzyme or an expression vector encoding a lysosomal enzyme which are used in a method for the treatment of a lysosomal storage disease. The invention also relates to a pharmaceutical composition for use in a method for the treatment of a lysosomal storage disease, to an expression vector encoding a lysosomal enzyme and to a method of associating a VLP with an expression vector encoding a lysosomal enzyme.

A melt processed viral nanoparticle construct for delivery of virus or virus-like particles to a site of interest includes a degradable polymer matrix and a plurality of virus or virus-like particles encapsulated within the degradable polymer matrix. The nanoparticle construct upon administration to the site of interest providing a sustained release of the virus or virus-like particles and/or nanoparticles upon degradation of the polymer matrix.