An immunogenic composition is provided herein. The immunogenic compositions are used to identify and select immunogenic antigens that elicit immune responses in a subject and may be subsequently used in multi-antigen vaccine compositions against one or more diseases or conditions. According to some embodiments, the immunogenic composition may include a plurality of nucleic acid fragments or minigenes derived from a nucleic acid library, wherein each nucleic acid fragment encodes a different antigen or functional portion thereof, and wherein the different antigens or functional portions thereof are associated with one or more disease or condition. The immunogenic composition may also include a delivery medium loaded with the plurality of nucleic acid fragments and in some embodiments, the delivery medium is loaded with nucleic acid fragments in such a way that individual antigen presenting cells receive only a subset of the nucleic acids within a vaccine in order to minimize antigenic competition.

An immunogenic composition is provided herein. The immunogenic compositions are used to identify and select immunogenic antigens that elicit immune responses in a subject and may be subsequently used in multi-antigen vaccine compositions against one or more diseases or conditions. According to some embodiments, the immunogenic composition may include a plurality of nucleic acid fragments or minigenes derived from a nucleic acid library, wherein each nucleic acid fragment encodes a different antigen or functional portion thereof, and wherein the different antigens or functional portions thereof are associated with one or more disease or condition. The immunogenic composition may also include a delivery medium loaded with the plurality of nucleic acid fragments and in some embodiments, the delivery medium is loaded with nucleic acid fragments in such a way that individual antigen presenting cells receive only a subset of the nucleic acids within a vaccine in order to minimize antigenic competition.

A vector containing a first nucleotide sequence S1 encoding a protein Z1, a second nucleotide sequence S2 encoding a protein Z2, a third nucleotide sequence S3 encoding a protein Y1, and a fourth nucleotide sequence S4 encoding a protein Y2, in which Z1 and Z2 form a first dimer and Y1 and Y2 form a second dimer, in which the first dimer Z1Z2 is different from the second dimer Y1Y2.

Methods for identifying HERV-derived T cell epitopes associated with cancer, and peptides that are or that include epitopes identified by the methods, expression vectors encoding the peptides, cytotoxic T lymphocytes (CTLs) of a subject treated with the peptides or vectors and engineered T cells expressing T-cell receptors recognizing the peptides. Also, the peptides, expression vectors, CTLs or engineered T cells as a vaccine or a medicament, and in particular the use of the peptides, expression vectors, CTLs or engineered T cells for use in preventing or treating cancer in a subject in need thereof.

Methods for identifying HERV-derived T cell epitopes associated with cancer, and peptides that are or that include epitopes identified by the methods, expression vectors encoding the peptides, cytotoxic T lymphocytes (CTLs) of a subject treated with the peptides or vectors and engineered T cells expressing T-cell receptors recognizing the peptides. Also, the peptides, expression vectors, CTLs or engineered T cells as a vaccine or a medicament, and in particular the use of the peptides, expression vectors, CTLs or engineered T cells for use in preventing or treating cancer in a subject in need thereof.

Disclosed herein are fusion fragment chimeric antigen receptors (FF-CARs), engineered cells expressing FF-CARs, and methods of using thereof to treat, reduce, or inhibit infections by enveloped viruses in subjects.

Disclosed herein are fusion fragment chimeric antigen receptors (FF-CARs), engineered cells expressing FF-CARs, and methods of using thereof to treat, reduce, or inhibit infections by enveloped viruses in subjects.

Chimeric antigen receptors containing ROR1 antigen binding domains are disclosed. Nucleic acids, recombinant expression vectors, host cells, antigen binding fragments, and pharmaceutical compositions, relating to the chimeric antigen receptors are also disclosed. Methods of treating or preventing cancer in a subject, and methods of making chimeric antigen receptor T cells are also disclosed.

Chimeric antigen receptors containing ROR1 antigen binding domains are disclosed. Nucleic acids, recombinant expression vectors, host cells, antigen binding fragments, and pharmaceutical compositions, relating to the chimeric antigen receptors are also disclosed. Methods of treating or preventing cancer in a subject, and methods of making chimeric antigen receptor T cells are also disclosed.

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