40 results about "A serotype" patented technology

A method for providing an adenovirus from a serotype which does not grow efficiently in a desired cell line with the ability to grow in that cell line is described. The method involves replacing the left and right termini of the adenovirus with the corresponding termini from an adenovirus which grow efficiently in the desired cell line. At a minimum, the left terminus spans the (5′) inverted terminal repeat, the left terminus spans the E4 region and the (3′) inverted terminal repeat. The resulting chimeric adenovirus contains the internal regions spanning the genes encoding the penton, hexon and fiber from the serotype which does not grow efficiently in the desired cell. Also provided are vectors constructed from novel simian adenovirus sequences and proteins, host cells containing same, and uses thereof.

The present invention is in the field of pneumococcal capsular saccharide conjugate vaccines. Specifically, an immunogenic composition for infants is provided comprising a multivalent Streptococcus pneumoniae vaccine comprising 2 or more capsular saccharide conjugates from different serotypes, wherein the composition comprises a serotype 22F saccharide conjugate. Such a vaccine may be used in infant populations to reduce the incidence of elderly pneumococcal disease such as exacerbations of COPD and / or IPD.

The present invention is related to the obtaining of chimeric chains coding for proteins capable of inducing, in the recipient, a serotype-specific and protective humoral immune response against the infection by the Dengue virus, thus eliminating the effects of the serotype-nonespecific viral immunoenhancement that causes hemorrhagies and clinical complications described for this kind of pathology. These chimeric chains of nucleic acids are composed by the specific combination of fragments belonging to the gene of a mutated protein from Neisseria meningitidis with dehydrogenase activity and fragments that codify for a region of the envelope (E) protein from the Dengue virus which, when inserted to an expression vector, give rise to chimeric proteins with particular properties. The resultant chimeric molecules from this invention are applicable to the pharmaceutical industry for the obtaining of vaccine preparations and diagnostic means of high serotype-specificity to be used in humans.

The invention relates to methods for producing papilloma-derived nanosphere particles that contain therapeutic, diagnostic, or other agents. The invention also provides nanosphere particle preparations that are useful for selectively delivering therapeutic, diagnostic, and / or other agents to cancer cells of subjects without eliciting a serotype-specific immunogenic response in the subjects.

The invention relates to a 15-valence pneumococcus conjugate combined vaccine. The combination particularly contains 2-type and 12 F serotypes, has a wide immunization coverage rate and is used for preventing infectious diseases caused by pneumococcus. The combined vaccine further contains a 1-type serotype, a 3-type serotype, a 4-type serotype, a 5-type serotype, a 6A serotype, a 6B serotype, a 7F serotype, a 9V serotype, a 14-type serotype, a 18 C serotype, a 19 A serotype, a 19 F serotype and a 23 F serotype.

The present invention relates to a recombinant adenovirus with increased in-vivo safety, tissue specificity, and anticancer activities, and a use thereof. Specifically, the recombinant adenovirus comprising: a promoter of the liver tissue-specific phosphoenolpyruvate carboxykinase (PEPCK) gene; a trans-splicing ribozyme which is operably linked to the promoter and acts on a cancer-specific gene; a therapeutic gene or a reporter gene which is linked to the 3′ exon of the ribozyme; and a serotype 35 fiber knob and a serotype 5 shaft, in which the orf4 gene is deleted from adenovirus E1, E3 and E4 orf1, shows remarkable in-vivo safety, high specificity for a target tissue, and remarkable anticancer effects, and thus can be useful for an anticancer drug or a cancer diagnostic agent as a gene delivery vector.

The present invention relates to methods, microarrays and kits for detecting one or more human astrovirus serotypes in a sample (e.g., a fecal sample) from an individual. The method includes amplifying nucleic acid molecules of the sample with one or more primers, to thereby obtain an amplified nucleic acid product; contacting the amplified nucleic acid product with one or more serotype specific probes having a nucleic acid sequence that is specific for only one astrovirus serotype in the group of astroviruses being assessed, wherein the nucleic acid sequence includes between about 9 and 25 nucleic acid bases (e.g., SEQ ID NO: 5-24); and detecting the hybridization complex. The presence of hybridization complexes with a serotype specific probe indicates the presence of one or more specific astrovirus serotypes, and the absence of hybridization complexes with a serotype specific probe indicates the absence of the specific astrovirus serotype. Identification of the astrovirus serotypes allows for one to diagnose an individual infected with the serotype. The present invention further includes microarrays having any one of the astrovirus specific probe, or kits having microarrays and reagents for carrying out the assay.

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.

A method for constructing a subgroup B recombinant human adenovirus vector Ad11-5EP. The method includes substituting a 365 bp fragment including an enhancer and a promoter of an upstream coding sequence of Ad5 E1A for a corresponding region of a serotype Ad11 of the subgroup B human adenovirus vector by homologous recombination to construct the subgroup B recombinant human adenovirus vector Ad11-5EP. A subgroup B recombinant human adenovirus vector Ad11-5EP constructed by the method and the use thereof for treatment of tumors are also provided.

The invention discloses a bivalent DNA vaccine connecting peptide and applications thereof. A bivalent DNA vaccine is obtained through the following steps: performing PCR amplification on an HSV-2 glycoprotein gene and an adjuvant gene, introducing enzyme cutting sites, and introducing a connecting peptide (G4S)2IZ(G4S)2 via overlapping PCR. Humoral immunity, humoral immunity and mucosal immunity response reactions triggered by the bivalent DNA vaccine are detected by prime-boost principle immunized mice; a serotype antibody is detected and the severity of illness of each group within 15 days is evaluated by vaginal infection of150LD50 HSV-2. Compared with a univalent DNA vaccine, the recombinant bivalent DNA vaccine generates more intense humoral immunity, humoral immunity and mucosal immunity response reactions and a powerful capability of neutralizing the virus is detected out; high-titer antibodies can be rapidly generated by the immunity reactions and the anamnestic immunity reactions of the recombinant bivalent vaccine, so that a good protection effect on the mice is achieved.

A recombinant vaccine comprising a serotype 9 fowl adenovirus vector (FAdV-9) having at least one exogenous nucleotide sequence inserted encoding at least one antigen of a disease of interest and replacing the adenovirus genome non-essential region, and a pharmaceutically acceptable vehicle, adjuvant and / or excipient, wherein the at least one exogenous nucleotide sequence encoding at least one antigen of a disease of interest and replacing the adenovirus genome non-essential region is located between the 491 and 2782 nucleotides. The vector of this vaccine is stable for industrial scale production. When administering this vaccine in combination with a vaccine against Marek's disease, both vaccines produce an adequate immune response which is not affected by interference between each other. In the same way, effectiveness of the recombinant vaccine is not affected by maternal antibodies, and is capable of inducing both an early and lasting protective response, even with only one application.