Abstract: Pre-erythrocytic malaria vaccines with good preservation stability and immunostimulatory action are provided. According the present invention, combination use of a pharmaceutical composition comprising (4E,8E,12E,16E,20E)-N-{2-[{4-[(2-amino-4-{[(3S)-1-hydroxyhexan-3-yl]amino}-6-methylpyrimidin-5-yl)methyl]benzyl}(methyl)amino]ethyl}-4,8,12,17,21,25-hexamethylhexacosa-4,8,12,16,20,24-hexaeneamide, or a pharmaceutically acceptable salt thereof, as a vaccine adjuvant with enhanced specific immune response against antigens and good preservation stability and a malaria vaccine with biological activity allow for the provision of pre-erythrocytic malaria vaccines with good preservation stability and immunostimulatory action.

Abstract: Malaria transmission-blocking vaccines with good preservation stability and immunostimulatory action are provided. According the present invention, combination use of a pharmaceutical composition comprising (4E,8E,12E,16E,20E)-N-{2-[{4-[(2-amino-4-{[(3S)-1-hydroxyhexan-3-yl]amino}-6-methylpyrimidin-5-yl)methyl]benzyl}(methyl)amino]ethyl}-4,8,12,17,21,25-hexamethylhexacosa-4,8,12,16,20,24-hexaeneamide, or a pharmaceutically acceptable salt thereof, as a vaccine adjuvant with enhanced specific immune response against antigens and good preservation stability and a malaria vaccine with non-glycosylation, homogeneity, and biological activity allow for the provision of malaria transmission-blocking vaccines with good preservation stability and immunostimulatory action.

Abstract: The invention provides a replication-deficient serotype 28 adenoviral vector characterized by comprising a portion of a serotype 45 adenoviral hexon protein and/or a portion of a serotype 45 fiber protein in place of the endogenous serotype 28 hexon and/or fiber protein.

Abstract: The invention provides a replication-deficient serotype 28 adenoviral vector characterized by comprising a portion of a serotype 45 adenoviral hexon protein and/or a portion of a serotype 45 fiber protein in place of the endogenous serotype 28 hexon and/or fiber protein.

Abstract: The invention provides a method of propagating an adenoviral vector. The method comprises (a) providing a cell comprising a cellular genome comprising a nucleic acid sequence encoding a tetracycline operon repressor protein (tetR), and (b) contacting the cell with an adenoviral vector comprising a heterologous nucleic acid sequence encoding a toxic protein. The heterologous nucleic acid sequence is operably linked to a promoter and one or more tetracycline operon operator sequences (tetO), and expression of the heterologous nucleic acid sequence is inhibited in the presence of tetR, such that the adenoviral vector is propagated. The invention also provides a system comprising the aforementioned cell and adenoviral vector.

Abstract: The invention provides a method of propagating an adenoviral vector. The method comprises (a) providing a cell comprising a cellular genome comprising a nucleic acid sequence encoding a tetracycline operon repressor protein (tetR), and (b) contacting the cell with an adenoviral vector comprising a heterologous nucleic acid sequence encoding a toxic protein. The heterologous nucleic acid sequence is operably linked to a promoter and one or more tetracycline operon operator sequences (tetO), and expression of the heterologous nucleic acid sequence is inhibited in the presence of tetR, such that the adenoviral vector is propagated. The invention also provides a system comprising the aforementioned cell and adenoviral vector.

Abstract: The invention provides a replication-deficient serotype 28 adenoviral vector characterized by comprising a portion of a serotype 45 adenoviral hexon protein and/or a portion of a serotype 45 fiber protein in place of the endogenous serotype 28 hexon and/or fiber protein.

Abstract: The invention provides a replication-deficient serotype 28 adenoviral vector characterized by comprising a portion of a serotype 45 adenoviral hexon protein and/or a portion of a serotype 45 fiber protein in place of the endogenous serotype 28 hexon and/or fiber protein.

Abstract: The present application relates to novel HIV-1 envelope glycoproteins, which may be utilized as HIV-1 vaccine immunogens, and antigens for crystallization, electron microscopy and other biophysical, biochemical and immunological studies for the identification of broad neutralizing antibodies. The present invention encompasses the preparation and purification of immunogenic compositions, which are formulated into the vaccines of the present invention.

Abstract: The invention provides a method of identifying an antigen from a pathogen or a disease antigen comprising the use of an adenoviral vector array comprising two or more different adenoviral vectors, wherein each adenoviral vector comprises a nucleic acid sequence encoding a different antigen of a pathogen. The adenoviral vectors are administered to antigen presenting cells (APCs) in vitro or to an animal in vivo. The immunogenicity of the antigen is measured by screening for an immune response from effector T lymphocytes in vitro and by screening for the absence of pathogen-induced disease onset in vivo.

Abstract: The invention provides a method of identifying an antigen from a pathogen or a disease antigen comprising the use of an adenoviral vector array comprising two or more different adenoviral vectors, wherein each adenoviral vector comprises a nucleic acid sequence encoding a different antigen of a pathogen. The adenoviral vectors are administered to antigen presenting cells (APCs) in vitro or to an animal in vivo. The immunogenicity of the antigen is measured by screening for an immune response from effector T lymphocytes in vitro and by screening for the absence of pathogen-induced disease onset in vivo.

Abstract: The invention provides a method of propagating an adenoviral vector. The method comprises (a) providing a cell comprising a cellular genome comprising a nucleic acid sequence encoding a tetracycline operon repressor protein (tetR), and (b) contacting the cell with an adenoviral vector comprising a heterologous nucleic acid sequence encoding a toxic protein. The heterologous nucleic acid sequence is operably linked to a promoter and one or more tetracycline operon operator sequences (tetO), and expression of the heterologous nucleic acid sequence is inhibited in the presence of tetR, such that the adenoviral vector is propagated. The invention also provides a system comprising the aforementioned cell and adenoviral vector.

Abstract: The invention provides a method of propagating an adenoviral vector. The method comprises (a) providing a cell comprising a cellular genome comprising a nucleic acid sequence encoding a tetracycline operon repressor protein (tetR), and (b) contacting the cell with an adenoviral vector comprising a heterologous nucleic acid sequence encoding a toxic protein. The heterologous nucleic acid sequence is operably linked to a promoter and one or more tetracycline operon operator sequences (tetO), and expression of the heterologous nucleic acid sequence is inhibited in the presence of tetR, such that the adenoviral vector is propagated. The invention also provides a system comprising the aforementioned cell and adenoviral vector.

Abstract: The invention provides a method of inducing an immune response against malaria in a mammal. The method comprises intramuscularly administering to a mammal a composition comprising a pharmaceutically acceptable carrier and either or both of (a) a first adenoviral vector comprising a nucleic acid sequence encoding a P. falciparum circumsporozoite protein (CSP) operably linked to a human CMV promoter, and/or (b) a second adenoviral vector comprising a nucleic acid sequence encoding a P. falciparum apical membrane antigen 1 (AMA-1) antigen operably linked to a human CMV promoter.

Abstract: The invention provides a replication-deficient serotype 28 adenoviral vector characterized by comprising a portion of a serotype 45 adenoviral hexon protein and/or a portion of a serotype 45 fiber protein in place of the endogenous serotype 28 hexon and/or fiber protein.

Abstract: The present application relates to identifying one or more components of HIV envelope glycoprotein which bind to broadly neutralizing antibodies, which may be utilized as research tools for developing HIV-1 vaccine immunogens, antigens for crystallization and/or for identifying of broad neutralizing antibodies.

Abstract: The invention provides a method of inducing an immune response against malaria in a mammal. The method comprises intramuscularly administering to a mammal a composition comprising a pharmaceutically acceptable carrier and either or both of (a) a first adenoviral vector comprising a nucleic acid sequence encoding a P. falciparum circumsporozoite protein (CSP) operably linked to a human CMV promoter, and/or (b) a second adenoviral vector comprising a nucleic acid sequence encoding a P. falciparum apical membrane antigen 1 (AMA-1) antigen operably linked to a human CMV promoter.

Abstract: The invention provides a method of identifying an antigen from a pathogen or a disease antigen comprising the use of an adenoviral vector array comprising two or more different adenoviral vectors, wherein each adenoviral vector comprises a nucleic acid sequence encoding a different antigen of a pathogen. The adenoviral vectors are administered to antigen presenting cells (APCs) in vitro or to an animal in vivo. The immunogenicity of the antigen is measured by screening for an immune response from effector T lymphocytes in vitro and by screening for the absence of pathogen-induced disease onset in vivo.

Abstract: The invention provides a method of propagating an adenoviral vector. The method comprises (a) providing a cell comprising a cellular genome comprising a nucleic acid sequence encoding a tetracycline operon repressor protein (tetR), and (b) contacting the cell with an adenoviral vector comprising a heterologous nucleic acid sequence encoding a toxic protein. The heterologous nucleic acid sequence is operably linked to a promoter and one or more tetracycline operon operator sequences (tetO), and expression of the heterologous nucleic acid sequence is inhibited in the presence of tetR, such that the adenoviral vector is propagated. The invention also provides a system comprising the aforementioned cell and adenoviral vector.

Abstract: The present application relates to novel HIV-1 envelope glycoproteins, which may be utilized as HIV-1 vaccine immunogens, and antigens for crystallization, electron micrsocopy and other biophysical, biochemical and immunological studies for the identification of broad neutralizing antibodies. The present invention encompasses the preparation and purification of immunogenic compositions, which are formulated into the vaccines of the present invention.