摘要:
The present invention relates to methods and compositions for eliciting an immune response and the prevention and treatment of primary and metastatic neoplastic diseases and infectious diseases. The methods of the invention comprise administering a composition comprising an effective amount of a complex, in which the complex consists essentially of a heat shock protein (hsp) noncovalently bound to an antigenic molecule. "Antigenic molecule" as used herein refers to the peptides with which the hsps are endogenously associated in vivo as well as exogenous antigens/immunogens (i.e., with which the hsps are not complexed in vivo or antigenic/immunogenic fragments and derivatives thereof. In a preferred embodiment, the complex is autologous to the individual. The effective amounts of the complex are in the range of 100-600 micrograms for complexes comprising hsp70, 50-1000 micrograms for hsp90, and 10-600 micrograms for gp96. The invention also provides a method for measuring tumor rejection in vivo in an individual, preferably a human, comprising measuring the generation by the individual of MHC Class I-restricted CD8+ cytotoxic T lymphocytes specific to the tumor. Methods of purifying hsp70-peptide complexes are also provided.
摘要:
This invention provides a purified polypeptide having antibacterial activity comprising a first sequence Pro-Arg-Pro-Pro-His-Pro-Arg-X1, wherein X1 is Ile or Leu; and a third sequence X2-Pro-X3-X4-X5-Pro, wherein X2 is Arg or Lys, X3 is Thr, Gln or Arg, X4 is Tyr, Gln or Pro, and X5 is Val or Ala, the third sequence is N-terminal to the first sequence. This invention also provides a purified polypeptide having antibacterial activity comprising: a first sequence, at least seven amino acid residues are the same as Pro-Arg-Pro-Pro-His-Pro-Arg-X1, wherein X1 is Ile or Leu; a third sequence X2-Pro-X3-X4-X5-Pro, wherein X2 is Arg or Lys, X3 is Thr, Gln or Arg, X4 is Tyr, Gln or Pro, and X5 is Val or Ala, the third sequence is N-terminal to the first sequence; and a fourth sequence comprising at least five amino acid residues, at least one-third of the residues are Pro, the fourth sequence is N-terminal to the second sequence.
摘要:
A composition capable of killing microorganisms intracellularly comprises an effective amount of a quinolone antibiotic encapsulated in a lipid vesicle.
摘要:
A method for producing stable avirulent mutant strains of Legionella pneumophila for use as vaccines and vehicles for immunization with antigens to other pathogens, and the bacteria so produced are disclosed and claimed. The method involves passing wild-type bacteria on suboptimal artificial media and selecting individual mutant clones which are subsequently passed on suboptimal artificial media. The bacteria so produced are useful as vaccines and as intracellular target vehicles for transporting antigens from a variety of pathogens and may be administered through the aerosol route as well as conventional means of administration.
摘要:
A vaccine against a microbial pathogen comprised of a live, immunogenic but prototrophic and avirulent mutant strain of the selected microbial pathogen in an amount effective to confer immunity. A method of obtaining a vaccine that induces a heightened cellular and humoral immune response to one of a variety of microbial pathogens in a warm blooded animal. A method for isolation of an avirulent strain of a selected pathogenic microorganism.
摘要:
The present disclosure relates to method of modulating autophagy by modulators of autophagy, wherein the autophagy includes but is not limited to macroautophagy, chaperone mediated autophagy and microautophagy. The present disclosure further relates to modulators of autophagy for increasing or decreasing the autophagic flux. The disclosure also relates to modulator per se in modulating autophagy including but not limiting to macroautophagy, chaperon mediated autophagy and microautophagy.
摘要:
The present invention provides an agent, or composition containing an agent, for use in treating or preventing hypercytokinemia in a subject resulting from cytokine release from non-proliferating immune cells in blood, wherein said agent comprises: (i) an oligopeptidic compound comprising a PCNA interacting motif and a domain that facilitates the cellular uptake of said compound, wherein the PCNA interacting motif is X 1 X 2 X 3 X 4 X 5 X 6 (SEQ ID NO: 1 ) and wherein: X 1 is a basic amino acid; X 2 is an aromatic amino acid; X 3 is an aromatic amino acid or a hydrophobic amino acid that has an R group comprising at least three carbon atoms; X 4 is an uncharged amino acid other than an aromatic amino acid, Glycine (G) and Proline (P); X 5 is any amino acid other than an acidic amino acid or an aromatic amino acid; and X 6 is any amino acid other than an acidic amino acid or an aromatic amino acid, preferably a basic amino acid or Proline (P), wherein when X 3 is not an aromatic amino acid, X 5 is not lysine (K) and X 6 is a basic amino acid or Proline (P); or (ii) a nucleic acid molecule comprising a sequence encoding the oligopeptidic compound of (i). In certain aspects the agent and composition of the invention may be used as single agents. In other aspects of the invention the agents and composition may be used in conjunction with one or more additional active agents, such as kinase inhibitors.
摘要:
Novel antimicrobial compositions comprise at least a form of a fosfomycin (or suitable analogs, or derivatives thereof), and at least one sulfonamide (or suitable analogs, or derivatives thereof), and/or at least one diaminopyridine (or suitable analogs, or derivatives thereof). Said antimicrobial compositions generally include two or more of said components as a novel combination, provided in a single combination or formulation, or provided independently with overlapping exposures of the two or more components. These novel compositions, when provided as the two or more components, are effective against susceptible microorganisms, and are effective against susceptible drug-resistant microorganisms (e.g., bacteria, parasites), including multi-drug resistant bacteria. These novel compositions are also effective against microorganisms or strains thereof now susceptible to the combination even though said microorganisms or strains thereof were previously found or were considered resistant or intolerant to at least one of the components of the novel composition, when the at least one component was used alone at what was considered an effective dosing amount or concentration.
摘要:
The present invention relates to s pharmaceutical composition for the treatment of multi-drug resistant infections comprising benzopyrano[3,4-b][1]benzopyran-12(6H)-one class of compound boeravinone B of formula 1 in combination with antimicrobial agent. The present invention particularly relates to the potentiation of the bio-efficacy of anti-infective drugs, when used in combination with boeravinone B. The present invention further relates to the use of boeravinone B to overcome the resistance or multi-drug resistance developed by bacteria against quinolone, mupirocin and macrolide class of anti-bacterial agents via inhibition of bacterial efflux pumps. In addition, the invention relates to methods of using compounds for treating or preventing drug-resistant bacterial diseases.