The present invention pertains to a vaccine comprising non live Lawsonia intracellularis antigen and a pharmaceutically acceptable carrier for use in a method to reduce in a pig the shedding of Lawsonia intracellularis bacteria associated with subclinical infection with Lawsonia intracellularis, by systemic administration of the vaccine to the pig.

The present technology relates to the use of protein conjugates including a self-assembly and disassembly (SADA) polypeptide and a GD2-specific antigen binding domain for preventing or mitigating off-target tissue toxicity, such as brain, kidney, and/or myeloid damage, in a subject undergoing targeted alpha radioimmunotherapy. Also disclosed herein are pretargeted radioimmunotherapy (PRIT) methods that improve the durability of the anti-GD2-SADA conjugate anti-tumor response in vivo.

Helicobacter pylori is a leading cause of gastric mucosal inflammation, peptic ulcers, and gastric adenocarcinoma. Emerging antimicrobial-resistant H. pylori has hampered the successful eradication of frequent chronic infections. Additionally, due to the absence of effective vaccines against H. pylori, a safe vaccine is highly demanded. Disclosed herein are innovative Protective Immunity Enhanced Salmonella Vaccine (PIESV) vector strains to deliver and express multiple H. pylori antigen genes Immunization of mice with a vaccine delivering the HpaA, NapA (also termed Hp-NAP), UreA and UreB antigens, provided sterile protection against H. pylori SS1 infection in 7 out of 10 tested mice. Compared to the control groups that had received PBS or a PIESV with an empty vector, immunized mice exhibited specific and significant cellular recall responses and antigen-specific IgG2c, IgG1, total IgG and gastric IgA antibody titers. Importantly, the mice immunized with the vaccine candidate showed a significant reduction in a load of an unidentified Gram-positive rod-shaped bacteria in their stomach compared to the control groups. In conclusion, a Salmonella Typhimurium-based live vaccine delivering four antigens shows promise as a safe and effective vaccine against H. pylori infection.

Provided are surprisingly effective methods for inactivating pathogens, and for producing highly immunogenic vaccine compositions containing an inactivated pathogen rendered noninfectious by exposure to a Fenton reagent, or by exposure to a Fenton reagent or a component thereof in combination with a methisazone reagent selected from the group consisting of methisazone, methisazone analogs, functional group(s)/substructure(s) of methisazone, and combinations thereof. The methods efficiently inactivate pathogens, while substantially retaining pathogen antigenicity and/or immunogenicity, and are suitable for inactivating pathogens, or for the preparation of vaccines for a wide variety of pathogens with genomes comprising RNA or DNA, including viruses and bacteria. Also provided are highly immunogenic inactivated vaccine compositions prepared by using any of the disclosed methods, and methods for eliciting an immune response in a subject by administering such vaccine compositions.

The present invention relates to a recombinant vaccine against Lawsonia intracellularis, based on a recombinant synthetic chimeric variant of membrane proteins and invasins of said bacteria. In addition, the invention discloses synthetic nucleotide sequences encoding said protein variants, recombinant proteins as such, an expression cassette of said synthetic protein antigens, a transformed cell, and a method for producing said antigens, demonstrating the antigenicity and protective potential thereof against the pathogen Lawsonia intracellularis.

The present invention is related to a polypeptide comprising an amino acid sequence, whereby the amino acid sequence of the polypeptide is at least 80% identical to a stretch of consecutive amino acids of the region of HPGGT comprising an amino acid sequence corresponding to SEQ.ID.No. 1, whereby such region is defined by (a) amino acid positions 150 to 200 of the amino acid sequence according to SEQ.ID.No.1, or (b) amino acid positions 410 to 480 of the amino acid sequence according to SEQ.ID.No.1, and
whereby the polypeptide is suitable to elicit an immune response which is capable of inhibiting the catalytic activity of HPGGT.

The invention relates to a method of predicting therapeutic responses to TNF blockers before anti-TNF therapy comprising analyzing immune parameters to selected stimuli in patients before therapy and its use for anti-TNF therapy. The invention relates also to a method of determining a predictive biomarker of response to anti-TNF therapy and to the use of the predictive biomarker obtained by the method.

The inventive subject matter relates to a construct comprising antigens derived from multiple enterobacteria including Campylobacter jejuni capsule polysaccharide polymer, enterotoxigenic Escherichia coli recombinant polypeptide construct and lipopolysaccharide from Shigella spp. The subject invention also relates to a method of inducing an immune response utilizing the inventive composition.

The present invention relates to Salmonella enterica comprising at least pgl operon of Campylobacter jejuni or a functional derivative thereof and presenting at least one N-glycan of Campylobacter jejuni or N-glycan derivative thereof on its cell surface and, in particular, to medical uses and pharmaceutical compositions thereof as well as methods for treating and/or preventing Campylobacter and optionally Salmonella infections and methods for producing these Salmonella strains.

The present disclosure provides immunogenic compositions against Campylobacter and methods for using the immunogenic composition to generate an immune response against Campylobacter and/or reduce intestinal colonization by Campylobacter.