摘要:
Compositions and methods are provided herein for improved dual immunization strategies that induce in a subject an immune response that includes a humoral immune response and cellular immune response, both CD4 and CD8 T lymphocyte immune responses, thereby providing a complete adaptive immune response to one or more antigens. The methods described are therefore useful for treating and/or preventing (i.e., reducing the likelihood or risk of occurrence) different diseases, disorders, and conditions such as cancers and infectious diseases for which induction of both a humoral immune response and cellular immune response is desired and beneficial.
摘要:
Provided herein are methods for inducing a specific immune response in a subject by administering to the subject an immunogenic composition comprising a recombinant expression vector, or a vector particle comprising the recombinant expression vector, which vector comprises a polynucleotide sequence that encodes an immunogen of interest. The methods further comprise administering an adjuvant composition either concurrently or sequentially with the immunogenic composition.
摘要:
Synthetic long peptides and an adjuvant are formulated together and administered to a subject in order to raise an immune response. In certain embodiments, the adjuvant is GLA.
摘要:
Isolated nucleic acid molecules are disclosed, comprising an alphavirus nonstructural protein gene which, when operably incorporated into a recombinant alphavirus particle, eukaryotic layered vector initiation system, or RNA vector replicon, has a reduced level of vector-specific RNA synthesis, as compared to wild-type, and the same or greater level of proteins encoded by RNA transcribed from the viral junction region promoter, as compared to a wild-type recombinant alphavirus particle. Also disclosed are RNA vector replicons, alphavirus vector constructs, and eukaryotic layered vector initiation systems which contain the above-identified nucleic acid molecules.
摘要:
Methods of production and purification for viruses and virus-derived vectors, including those related to alphaviruses, are disclosed. In one aspect, methods of purification that subject alphavirus replicon particle preparations to one or more steps of chromatographic purification, such as using an ion exchange resin, are provided. Also disclosed are methods of characterizing alphavirus replicon particles and utilizing these materials for vaccines and gene-based therapeutics
摘要:
Lentiviral vector particles comprising a Sindbis virus E2 glycoprotein variant and a lentiviral vector genome comprising a sequence of interest are provided. A lentiviral vector particle comprising: (a) an envelope comprising a Sindbis virus E2 glycoprotein variant; and (b) a lentiviral vector genome comprising a sequence of interest; wherein the E2 glycoprotein variant facilitates infection of dendritic cells by the lentiviral vector particle, and wherein the E2 glycoprotein variant has reduced binding to heparan sulfate compared to a reference sequence (HR strain).
摘要:
The present invention provides Listeria that are attenuated for entry into non-phagocytic cells as well as a variety of methods of inducing immune responses involving administering compositions comprising the attenuated Listeria. Some of the attenuated Listeria are mutant Listeria that comprise at least one mutation in a gene encoding an invasin, such as an internalin. Some of the attenuated Listeria are further attenuated for cell-to-cell spread. Pharmaceutical compositions and vaccines useful in the methods of the invention are further provided. Methods of making and improving vaccines are also provided.
摘要:
The invention provides a bacterium containing a polynucleotide comprising a nucleic acid encoding a heterologous antigen, as well as fusion protein partners. Also provided are vectors for mediating site-specific recombination and vectors comprising removable antibiotic resistance genes.
摘要:
Provided herein are prime-boost regimens and materials used therein. The prime-boost regimens enhance the immune response to a target antigen. The vaccines used for boost are comprised of recombinant attenuated metabolically active Listeria that encodes an expressible antigen that is cross-reactive with the target antigen. In some examples, the immune response is a cellular immune response.
摘要:
The present disclosure provides compositions and methods for utilizing recombinant alphavirus vectors. Also disclosed are compositions and methods for making and utilizing eukaryotic layered vector initiation systems