The present invention provides a recombinant exosome comprising a membrane-bound EGF protein on the surface of the recombinant exosome and provides a use of the recombinant exosome.

The present application provides a method for preparing a hydrogel and the obtained hydrogel. The method including: forming a first part by mixing a first single-stranded nucleotide with a first liposome, and forming a second part by mixing a second single-stranded nucleotide with a second liposome, wherein the first single-stranded nucleotide and the second single-stranded nucleotide have complementary sticky ends; forming a hydrogel by mixing the first part and the second part.

An immunogenic composition forming a vaccine includes a nanoparticle delivery system comprising at least a nanoparticle, wherein the at least a nanoparticle comprises a lipid layer exterior including a plurality of lipids, cholesterol, and a primary alkyl amine including a positively charged amino group head and at least a carbon tail and an antigen incorporated in the at least a nanoparticle, wherein the antigen comprises a nucleic acid encoding a protein from a coronavirus.

The disclosure relates generally to polyglutamated antifolates, formulations containing liposomes filled with the polyglutamated antifolates, methods of making the polyglutamated antifolates and liposome containing formulations, and methods of using the polyglutamated antifolates and liposome containing formulations to treat hyerproliferative disorders (e.g., cancer) and disorders of the immune system (e.g., an autoimmune disease such as rheumatoid arthritis).

The present disclosure relates to compositions and methods for enhancing T cell response in vivo. For example, a method of enhancing T cell response in a subject or treating a subject having cancer, the method comprising: administering an effective amount of a composition comprising modified cells to the subject having a form of cancer associated with or expressing an antigen, for example, a solid tumor antigen; and administering (1) a nucleic acid encoding the antigen, (2) additional modified cells comprising the nucleic acid or the antigen, or (3) microorganisms, for example cold viruses, comprising the nucleic acid or the antigen. In embodiments, the modified cells comprise mixed cells targeting a solid tumor antigen and a white blood cell (WBC) antigen. In embodiments, the modified cells comprise a dominant negative form of an immune checkpoint molecule (e.g., PD-1). In embodiments, the modified cells comprise an exogenous polynucleotide encoding a therapeutic agent, such as IL-12 and IFNγ.

The present invention is related to compositions containing extracellular vesicles (exosomes) and methods of using the same for increasing lifespan of fetus, viability of fetus, or viability of newborn, for treating inflammation in uterus and/or fetus, for delaying preterm birth, or for treating a condition related to inflammation in uterus and/or fetus, wherein the extracellular vesicles comprising a nuclear factor kappa beta (NF-κB) inhibitor and a photo-specific binding protein.

The present invention provides compositions and systems for delivery of nanocarriers to cells of the immune system. The invention provides vaccine nanocarriers capable of stimulating an immune response in T cells and/or in B cells, in some embodiments, comprising at least one immunomodulatory agent, and optionally comprising at least one targeting moiety and optionally at least one immunostimulatory agent. The invention provides pharmaceutical compositions comprising inventive vaccine nanocarriers. The present invention provides methods of designing, manufacturing, and using inventive vaccine nanocarriers and pharmaceutical compositions thereof. The invention provides methods of prophylaxis and/or treatment of diseases, disorders, and conditions comprising administering at least one inventive vaccine nanocarrier to a subject in need thereof.

The present disclosure relates to an exosome comprising a photocleavable protein and a use thereof, and the exosome according to the present disclosure contains a fusion protein comprising a blue fluorescent protein (TagBFP), a photocleavable protein (mMaple3), and an exosome-specific marker protein (CD9), and it has been found that when light of 405 nm is irradiated to the exosome, the photocleavable protein, mMaple3 is cleaved and thereby the blue fluorescent protein in the exosome can be delivered into a target cell. In addition, it has been found that Cre protein in the exosome can be delivered into an animal organ, when light of 405 nm is irradiated to an exosome containing Cre fusion protein (Cre-mMaple3-CD9). Therefore, the exosome containing the photocleavable protein according to the present disclosure is expected to be useful in the protein treatment field by safely and efficiently delivering various therapeutic proteins into cells.

Provided herein are compositions, systems, kits, and methods for treating a subject, and/or a subject's pre-adipocytes and/or adipocytes, with a composition containing a nucleic acid sequence encoding a protein or other biologically active nucleic acid-encoded molecule (BANEM), or a vector containing the nucleic acid sequence, wherein the treating comprises: a) injecting the composition into one or more subcutaneous (SC) regions of the subject such that one or more protein, or other BANEM, is detectable in a blood, serum, or plasma sample from the subject; and/or b) injecting the composition into one or more SC regions of the subject such that in-vivo transfected pre-adipocytes and/or adipocytes (e.g., transfected cells of fat cell origin) are generated; and/or c) performing the following: i) contacting pre-adipocytes and/or adipocytes (e.g., cells of fat cell origin) from the subject ex-vivo with the composition such that ex-vivo transfected pre-adipocytes and/or adipocytes are generated, and ii) injecting the ex-vivo transfected pre-adipocytes and/or adipocytes into one or more SC regions of the subject.

At present, there is a great need for the development of new tumor pH-shiftable nanoparticles that are effective to reduce side effects, enhance active tumor focusing, improve the cellular uptake, and nuclear/cytoplasmic targeting of chemotherapy and gene therapeutic. Hence, we designed novel solid lipid nanoparticles (SLN) and liposomes (Lip) to deliver microRNA and antineoplastic agent, respectively. The designed SLN and liposomes incorporating microRNA and anticancer drugs in the core, which is surrounded by lipids modified with peptide T (a ligand plus a cell-penetrating peptide) and a nucleus-targeted sequence of peptide R as the inner shell. Moreover, coating a pH-responsive polymer (PGA-PEG) on the outer layer of Lip-TR (PGA-Lip-TR) and SLN-T (PGA-SLN-T) can protect the peptide T and R from degradation by peptidases during systemic circulation and enhance directing to the acidic tumor sites. Collectively, these pH-shiftable nanoparticles may provide a novel and potential strategy for anticancer therapy.