8 results about "Reactogenicity" patented technology

The invention relates to the technical field of biological pharmacy, and discloses a QS-21 saponin adjuvant as well as a preparation method and application thereof, the adjuvant is a composite liposome and comprises a liposome skeleton composed of distearoyl phosphatidylcholine and cholesterol, and QS-21 saponin, monophosphoryl lipid A and a local anesthetic are jointly entrapped in the liposome skeleton. The problem that high reactogenicity and immunogenicity of potent adjuvants are difficult to consider at the same time is solved, the immunostimulation component and the pain inhibition component are jointly entrapped in the same nano-carrier, collaborative delivery in injection local is achieved, and therefore pain and swelling caused by the adjuvants are accurately inhibited. The co-entrapment structure avoids the potential inhibition effect of the free anesthetic on the immune system, the potent body fluid and cellular immune enhancement activity of the adjuvant is completely reserved, and a new technical scheme is provided for developing vaccines with high safety and strong immune efficacy.

The invention belongs to the field of biology, and discloses a coating protein for diagnosis of an African swine fever virus antibody, application and a kit, and the coating protein comprises a p22 protein and an E199L protein; the amino acid sequence of the p22 protein is as shown in SEQ ID NO: 1, and the amino acid sequence of the E199L protein is as shown in SEQ ID NO: 3. The coating protein is composed of recombinant proteins of p22 and E199L, the two recombinant proteins can react with ASF positive serum and have good reactogenicity, and the detection kit based on the coating protein is high in detection precision, strong in specificity and good in repeatability.

The application discloses a broad-spectrum protective antigen of avian pathogenic bacterium and application thereof, and belongs to the field of poultry infectious disease prevention and control. The application provides application of avian pathogenic bacterium protein p1 in preparation of a broad-spectrum protective antigen protein of avian pathogenic bacterium, and the amino acid sequence of the avian pathogenic bacterium protein p1 is shown as SEQ ID No. 1. The protective antigen protein has strong immunogenicity and reactivity, and a subunit vaccine prepared by using the antigen protein can provide 90% protection rate of chickens to A, B and C three serotypes of avian pathogenic bacterium, and can effectively prevent infection of the avian pathogenic bacterium.

The application belongs to the technical field of biology and specifically relates to a kind of nanobody targeting BVDV-E0 protein and application thereof.In detail, the nanobody of the application is a kind of nanobody with specificity and high binding force to BVDV-E0 protein and BVDV virus, which has good reactivity with antigen protein or virus, and the binding sensitivity can reach 1:1000, so it can be expected that the nanobody of the application has good application prospect in blocking E0 protein-mediated viral invasion, accurate virus diagnosis and treatment.

The application belongs to the field of biology, and discloses a coated protein, application and kit for diagnosing African swine fever virus antibody, wherein the coated protein comprises p22 protein and E199L protein; the amino acid sequence of the p22 protein is shown as SEQ ID NO:1, and the amino acid sequence of the E199L protein is shown as SEQ ID NO:3. The coated protein is composed of recombinant proteins of p22 and E199L, and both of the two kinds of recombinant proteins can react with ASF positive serum, and both have good reactivity. The detection kit based on the above coated protein has high detection precision, strong specificity and good repeatability.

The disclosure provides compositions, methods of treatment, and methods of making and using compositions to deliver a nucleic acid to a subject that, optionally, have reduced reactogenicity and promotes a local innate immune response in the subject while promoting an adaptive immune response. Compositions described herein include nanoparticles, optionally including an inorganic particle, capable of admixing with nucleic acids encoding proteins, antibodies, or immunomodulators. Methods of using the compositions as a therapeutic vaccine for the treatment of an infection or cancer are also provided.

Triazine lipids and solid-phase synthesis methods for synthesizing triazine lipids are provided. Certain triazine lipids disclosed can inhibit canonical NFKB transcriptional activity and thus may be utilized in non-viral transfection vectors for administration with an immunostimulatory antigen to reduce reactogenic response invoked by the immunostimulatory antigen. Methods for inhibiting canonical NFKB transcriptional activity during an immune response are also provided.

The application discloses a kind of detection anti-Brucella antibody multi-link B cell epitope recombinant protein and its application, it belongs to the field of biotechnology and immunodiagnosis technique, wherein, multi-link B cell epitope recombinant protein is formed by the B cell epitope of seven key outer membrane proteins Omp10, Omp16, Omp19, Omp25, Omp31, Omp2b, BP26 of Brucella, its amino acid sequence is as shown in sequence table SEQ ID NO:1.The multi-link B cell epitope recombinant protein has good antigenicity and reactivity, and the deer serum indirect ELISA detection system established with it as coating antigen shows excellent detection performance, has high sensitivity, strong specificity and good repeatability, and can accurately detect the level of anti-Brucella antibody in deer serum sample.