49 results about "Streptococcus pneumoniae Infections" patented technology

Streptococcus pneumoniae is a major cause of pneumoniae, meningitis, and major cause of morbidity and mortality throughout the world by bacterial otitis media, pneumoniae, meningitis, and bacteraemia. It is an important agent of disease in man especially among infants, the elderly and immunocompromised persons. The present invention provides a solution to this problem by providing a substantially pure or isolated disease related antigen selected from the group consisting of the isolated, recombinant or synthetic S. pneumoniae human immunogenic antigens of SP_0562, SP_0965, SP_0082 (in particular the fragments SP4 and SP 17 of said SP_0082), and a Periplasmic Binding Protein (PBP) (in particular SP_1683 or SP_1386), or a fragments thereof or substantially identical antigen for use in a treatment to induce a immunological memory in a human against S. pneumoniae cells for use in a vaccination treatment of S. pneumoniae disorder in human or against S. pneumoniae in a human. In a particular embodiment, the present invention provides an isolated, recombinant or synthetic S. pneumoniae Periplasmic Binding Protein (PBP) (in particular SP_1683 or SP_1386) as a disease related antigen for use in a treatment to induce a immunological memory in a human against S. pneumoniae cells for use in a vaccination treatment of S. pneumoniae disorder in human or for use in the treatment of an S. pnewnoniae infection in a human. It further provides antibodies that specifically bind to the S. pneumoniae disease related antigens identified herein for use in the treatment of a an S. pneumoniae infection in a human, such as for example in a treatment to induce immunological memory in a human against S. pneumoniae, i.e. in a vaccination treatment of S. pneumoniae. It is also an aspect of the present invention to provide the use of any one of the S. pneumoniae disease related antigens as identified herein, or of the antibodies specific for said antigens in methods to diagnose for a S. pneumoniae disorder in a human.

The invention is related to multivalent immunogenic compositions comprising more than one S. pneumoniae polysaccharide protein conjugates, wherein each of the conjugates comprises a polysaccharide from an S. pneumoniae serotype conjugated to a carrier protein, wherein the serotypes of S. pneumoniae are as defined herein. In some embodiments, at least one of the polysaccharide protein conjugates is formed by a conjugation reaction comprising an aprotic solvent. In further embodiments, each of the polysaccharide protein conjugates is formed by a conjugation reaction comprising an aprotic solvent. Also provided are methods for inducing a protective immune response in a human patient comprising administering the multivalent immunogenic compositions of the invention to the patient. The multivalent immunogenic compositions are useful for providing protection against S. pneumoniae infection and diseases caused by S. pneumoniae. The compositions of the invention are also useful as part of treatment regimes that provide complementary protection for patients that have been vaccinated with a multivalent vaccine indicated for the prevention of pneumococcal disease.

Vaccine compositions and methods for protecting a mammalian subject against infection with S. pneumoniae are disclosed. The vaccines and methods comprise an effective amount of one or more Streptococcus pneumoniae cell wall and/or cell membrane proteins and/or immunogenically-active fragments, derivatives or modifications thereof, wherein said proteins are selected from a defined group of proteins associated with age-dependent immunological responses.

The present invention belongs to the field of chemically synthesized medicine and its preparation process. The medicine of the present invention is synthesized with amantadine, moroxydine, 5-Fu (5-Fc), isoniazid and other clinical medicine and polyoxometallate, and through self-assembling. The said polyoxometallate includes heteropoly acid salts of Keggin type with chemical expression XM12O40n-, Dowson type X2M18O62n- and of chemical expression LnW10O36n-. The combined use of said medicines and polyoxometallate has obvious curative effect on intractable streptococcus pneumoniae infection.

The invention provides application of S. pneumoniae protein to resisting infection of S. pneumoniae. The endopeptidase O (PepO) of S. pneumoniae is a subcutaneous immunologic adjuvant, and the prepared S. pneumoniae protein vaccines have the good protection effects on resisting infection of S. pneumoniae through mixing and fusing expression of the subcutaneous immunologic adjuvant and 673rd to 863rd amino acid peptide fragment of zinc metal protease B (ZmpB).

The invention relates to a streptococcus-pneumoniae-toxicity-reducing live vaccine used for preventing streptococcus-pneumoniae infection. The vaccine is the composition of streptococcus pneumoniae strains which contain streptococcus pneumoniae SPD-1672 and have gene function deficiency, can effectively prevent the streptococcus-pneumoniae infection, has strong safety and good protection effect, and is easy for large-scale production and potential for generalization.

The invention relates to application of verbascoside in preparation of a pneumonia treatment drug. The treatment effect of the verbascoside to streptococcus pneumoniae infection is proved through sheep red blood cell hemolysis test, protection experiment of the human pulmonary epithelial cell (A549) damage and a mouse streptococcus pneumoniae pneumonia pneumonia model. Compared with antibiotic treatment, when the verbascoside is used for treatment, so that the pneumonia treatment drug has the advantages that no drug resistance exists and the curing rate is high.

The invention relates to the fields of genetic engineering technology and diagnostic reagents and provides a chemosynthetic extracellular region gene fragment of streptococcus pneumonia PspA protein and expression and application thereof. According to the invention, strong epitope in streptococcus pneumonia PspA protein is screened through computer analysis, the fragment consisting of the 33rd amino acid to the 109th amino acid, altogether 77 amino acids, is used, codon preferred by prokaryotes is selected, and a brand new gene sequence of the epitope is chemically synthesized; and through usage of genetic engineering technology, the gene fragment is expressed, and the fragment of the strong epitope in streptococcus pneumonia PspA protein is prepared. The expressed protein can be used for research and development of vaccines, detection of streptococcus pneumonia infection antibodies and preparation of monoclonal antibodies and polyclonal antibodies.

The invention discloses an EGCG with an inhibitory effect on streptococcus pneumoniae pathogenicity and an application of EGCG with the inhibitory effect on the streptococcus pneumoniae pathogenicity for confirming that EGCG has no bacteriostatic activity for streptococcus pneumoniae, but can inhibit peptidase activity of SrtA to lower the pathogenicity of the streptococcus pneumoniae; the invention further provides a new pharmaceutical use of EGCG. Drug sensitivity tests, SrtA peptidase activity inhibition tests, Hep2 adherence inhibition tests and treatment tests of streptococcus pneumoniae infected mice confirm that EGCG plays a role of lowering the streptococcus pneumoniae pathogenicity.

Polypeptides from Streptococcus pneumoniae are described. In some aspects the polypeptides include pili polypeptides from a second pili island (pilus II island (INVl 04B)) identified in Streptococcus pneumoniae isolate INVl 04. In other aspects the polypeptides include pili polypeptides and non-pilus polypeptides from Streptococcus pneumoniae strains 23F, INV200, and OXC141 that are absent from Streptococcus pneumoniae isolate INV104. The polypeptides, including fragments and variants thereof, may be used in immunogenic compositions for prophylactic or therapeutic immunization against Streptococcus pneumoniae. The polypeptides are also disclosed to be used in compositions useful for the production of antibodies and immunostimulants. Also presented are methods of inhibiting Streptococcus pneumoniae, methods of treating Streptococcus pneumoniae infection, methods of identifying inhibitors of Streptococcus pneumoniae and methods for diagnosing/detecting Streptococcus pneumoniae infection.