A general method is described for purifying any protein from a complex mixture by anchoring the protein of interest to liposomes that can be easily isolated from the complex mixture, then separated from the liposome and purified if desired.

A general method is described for purifying any protein from a complex mixture by anchoring the protein of interest to liposomes that can be easily isolated from the complex mixture, then separated from the liposome and purified if desired.

Vaccine vectors and methods of using the vaccine vectors to enhance the immune response to an Apicomplexan parasite and reduce the morbidity or mortality associated with subsequent infection are provided herein. The vaccine vectors include a polynucleotide encoding a Rhomboid polypeptide and optionally include an immune-stimulatory polypeptide suitably expressed on the surface of the vaccine vector.

Vaccine vectors and methods of using the vaccine vectors to enhance the immune response to an Apicomplexan parasite and reduce the morbidity or mortality associated with subsequent infection are provided herein. The vaccine vectors include a polynucleotide encoding a Rhomboid polypeptide and optionally include an immune-stimulatory polypeptide suitably expressed on the surface of the vaccine vector.

The present invention relates to an immune modulator having a novel structure, and an immunologic adjuvant composition containing the same and, more specifically, to an modulator, which is a lipopolysaccharide (LPS) analog having reduced toxicity, and a use thereof. The immune modulator of the present invention exhibits immune enhancement effects by having excellent innate immunity and ability to induce an adaptive immune response to a specific pathogen, and is very safe by having low toxicity. In addition, a vaccine containing the immune modulator of the present invention contains both an immune modulator and an alum, thereby improving immune enhancement effects compared with when using only the immune modulator.

The present invention relates to an immune modulator having a novel structure, and an immunologic adjuvant composition containing the same and, more specifically, to an modulator, which is a lipopolysaccharide (LPS) analog having reduced toxicity, and a use thereof. The immune modulator of the present invention exhibits immune enhancement effects by having excellent innate immunity and ability to induce an adaptive immune response to a specific pathogen, and is very safe by having low toxicity. In addition, a vaccine containing the immune modulator of the present invention contains both an immune modulator and an alum, thereby improving immune enhancement effects compared with when using only the immune modulator.

Disclosed herein are polynucleotides encoding multi-epitope polypeptides and assemblies thereof, and their use for treating or limiting Toxoplasma gondii infection.

Disclosed herein are polynucleotides encoding multi-epitope polypeptides and assemblies thereof, and their use for treating or limiting Toxoplasma gondii infection.

Antigens of Toxoplasma gondii that provide specific and strong delayed type hypersensitivity (DTH) immune response, or which stimulate IFN-y secretion, are used for testing subjects for infection. Any skin testing format may be adapted for testing for the delayed type hypersensitivity, including a patch, a needle, or a prong. Presence of DTH indicates infection. Alternate methods of detecting a T cell response including monitoring IFN-y secretion may be used.

The present invention relates to an immunity enhancing composition including an immune response modulator having a novel structure and, more specifically, to an immunity enhancing composition and a use of the same, wherein the immunity enhancing composition includes a lipopolysaccharide (LPS) analogue with reduced toxicity, and a cationic liposome. The present invention overcomes the physicochemical instability of a liposome, is advantageous in terms of production, transportation, and storage, and improves stability, thus being beneficial as an immune delivery system. In addition, the present invention includes an immune response modulator, and a cationic liposome, and thus exhibits an enhanced immunity-improving effect compared to the case in which an immune response modulator is used alone.