Compositions and methods, including vaccines and pharmaceutical compositions for inducing or enhancing an immune response are disclosed based on the discovery of useful immunological adjuvant properties in a synthetic, glucopyranosyl lipid adjuvant (GLA) that is provided in substantially homogeneous form. Chemically defined, synthetic GLA offers a consistent vaccine component from lot to lot without the fluctuations in contaminants or activity that compromise natural-product adjuvants. Also provided are vaccines and pharmaceutical compositions that include GLA and one or more of an antigen, a Toll-like receptor (TLR) agonist, a co-adjuvant and a carrier such as a pharmaceutical carrier.

Disclosed herein are methods of vaccination against cancer by providing a sample of a photo-inactivated Leishmania optionally transgenically modified to express a cancer antigen such as alpha-enolase; optionally providing an effective amount of an alpha-enolase; and delivering an effective amount of the sample and/or the alpha-enolase to a patient in need thereof.

Disclosed herein are methods of vaccination against cancer by providing a sample of a photo-inactivated Leishmania optionally transgenically modified to express a cancer antigen such as alpha-enolase; optionally providing an effective amount of an alpha-enolase; and delivering an effective amount of the sample and/or the alpha-enolase to a patient in need thereof.

The invention relates to the fields of vaccines and vaccine adjuvants, and generally relates to polynucleotide adjuvants, polynucleotide vaccines and vaccine compositions. More specifically, the invention relates to said polynucleotides and vaccine compositions for use in inducing or enhancing a prophylactic or therapeutic immune response in a mammalian subject. Furthermore, it relates to said polynucleotides and vaccine compositions for use in the prophylactic or therapeutic treatment of an infectious disease, such as in the prophylactic or therapeutic treatment of leishmaniasis.

The invention relates to the fields of vaccines and vaccine adjuvants, and generally relates to polynucleotide adjuvants, polynucleotide vaccines and vaccine compositions. More specifically, the invention relates to said polynucleotides and vaccine compositions for use in inducing or enhancing a prophylactic or therapeutic immune response in a mammalian subject. Furthermore, it relates to said polynucleotides and vaccine compositions for use in the prophylactic or therapeutic treatment of an infectious disease, such as in the prophylactic or therapeutic treatment of leishmaniasis.

Heptose-1-monophosphate-7-derivatives are modifiable immunomodulators that can be used to prepare clinically active conjugate compounds. Such conjugate compounds are useful in modulating an immune response in a subject.

Heptose-1-monophosphate-7-derivatives are modifiable immunomodulators that can be used to prepare clinically active conjugate compounds. Such conjugate compounds are useful in modulating an immune response in a subject.

Compositions and methods, including vaccines and pharmaceutical compositions for inducing or enhancing an immune response are disclosed based on the discovery of useful immunological adjuvant properties in a synthetic, glycopyranosyl lipid adjuvant (GLA) that is provided in substantially homogeneous form. Chemically defined, synthetic GLA offers a consistent vaccine component from lot to lot without the fluctuations in contaminants or activity that compromise natural-product adjuvants. Also provided are vaccines and pharmaceutical compositions that include GLA and one or more of an antigen, a Toll-like receptor (TLR) agonist, a co-adjuvant and a carrier such as a pharmaceutical carrier.

Compositions and methods, including vaccines and pharmaceutical compositions for inducing or enhancing an immune response are disclosed based on the discovery of useful immunological adjuvant properties in a synthetic, glycopyranosyl lipid adjuvant (GLA) that is provided in substantially homogeneous form. Chemically defined, synthetic GLA offers a consistent vaccine component from lot to lot without the fluctuations in contaminants or activity that compromise natural-product adjuvants. Also provided are vaccines and pharmaceutical compositions that include GLA and one or more of an antigen, a Toll-like receptor (TLR) agonist, a co-adjuvant and a carrier such as a pharmaceutical carrier.

A therapeutic vaccine for treating individuals who are carriers of a disease or pathogen that does not affect the brain, such as leishmaniasis, cancer or any pathogenic infection, comprises at least one cationic nanoparticle comprising a cationic polysaccharide core and a specific antigen, wherein the antigen is specific to the pathogen or disease.