Abstract: The present disclosure provides vaccine compositions comprising at least one adjuvant and at least one antigen, wherein the adjuvant is a cationic lipid. The disclosure also provides methods of treating a disease in a mammal, methods of preventing a disease in a mammal, and methods of effecting antigen cross presentation to induce a humoral immune response and a cellular immune response in a mammal utilizing the vaccine compositions. Cross presentation of various antigens can be achieved by formulating the specific antigens with cationic lipids possessing adjuvant properties.

Abstract: The present invention provides compositions and methods for stimulating an immune response using cationic lipids alone or in combination with antigens.

Abstract: The present disclosure provides vaccine compositions comprising at least one adjuvant and at least one antigen, wherein the adjuvant is a cationic lipid. The disclosure also provides methods of treating a disease in a mammal, methods of preventing a disease in a mammal, and methods of effecting antigen cross presentation to induce a humoral immune response and a cellular immune response in a mammal utilizing the vaccine compositions. Cross presentation of various antigens can be achieved by formulating the specific antigens with cationic lipids possessing adjuvant properties.

Abstract: A composition and method for activating immune cells ex-vivo, or inducing an immune response in a subject including a composition comprising at least one chiral cationic lipid. The chiral cationic lipid in one embodiment comprises a nonsteroidal cationic lipid having a structure represented by formula (I); wherein in R1 is a quaternary ammonium group, Y1 is a space chosen from a hydrocarbon chain, an ester, a ketone, and a peptide, C* is a chiral carbon, R2 and R3 are independently chosen from a saturated fatty acid, an unsaturated fatty acid, an ester-linked hydrocarbon, phosphor-diesters, and combination thereof.

Abstract: The invention covers the use of certain classes of lipids including cationic lipids in ex-vivo dendritic cell therapies. The cationic lipids enhance antigen uptake, processing and presentation of the processed antigens by dendritic cells to CD8+ and CD4+ T-cells via the MHC classes I and II presentation pathways respectively. Antigen uptake via cationic lipid by dendritic cells result in significant lowering of the population of the immune suppressive regulatory T cells in the tumors and a significant increase of the tumor targeting cytotoxic T-cells. Loss of regulatory T cells and increase of tumor specific cytotoxic cells are conducive to effective elimination of the tumors.

Abstract: The invention covers the use of certain classes of lipids including cationic lipids in ex-vivo dendritic cell therapies. The cationic lipids enhance antigen uptake, processing and presentation of the processed antigens by dendritic cells to CD8+ and CD4+ T-cells via the MHC classes I and II presentation pathways respectively. Antigen uptake via cationic lipid by dendritic cells result in significant lowering of the population of the immune suppressive regulatory T cells in the tumors and a significant increase of the tumor targeting cytotoxic T-cells. Loss of regulatory T cells and increase of tumor specific cytotoxic cells are conducive to effective elimination of the tumors.

Abstract: The invention covers the use of certain classes of lipids including cationic lipids in ex-vivo dendritic cell therapies. The cationic lipids enhance antigen uptake, processing and presentation of the processed antigens by dendritic cells to CD8+ and CD4+ T-cells via the MHC classes I and II presentation pathways respectively. Antigen uptake via cationic lipid by dendritic cells result in significant lowering of the population of the immune suppressive regulatory T cells in the tumors and a significant increase of the tumor targeting cytotoxic T-cells. Loss of regulatory T cells and increase of tumor specific cytotoxic cells are conducive to effective elimination of the tumors.

Abstract: Methods and compositions for altering the microenvironment of a tumor are provided. The methods comprise reducing the population of tumor-residing immune suppressive regulatory T-cells, increasing the population of tumor lysing T-cells (such as CD8+ T-cells) and improving the efficacy of cancer immunotherapy. The compositions comprise the use of cationic lipids optionally combined with autologous antigens, non-autologous antigens, or tumor-associated antigens.

Abstract: Novel human papillomovirus immunogenic compositions and methods of use thereof are provided. The compositions comprise unique combinations of multi-epitope peptide sequences specifically selected and designed to be effectively processed and cross-presented to T-cells. The peptides utilized in the compositions display high levels of binding with HLA-supertypes. The immunogenic compositions are broadly applicable to large proportions of target populations. The compositions comprise adjuvants such as cationic lipids.

Abstract: Novel human papillomovirus immunogenic compositions and methods of use thereof are provided. The compositions comprise unique combinations of multi-epitope peptide sequences specifically selected and designed to be effectively processed and cross-presented to T-cells. The peptides utilized in the compositions display high levels of binding with HLA-supertypes. The immunogenic compositions are broadly applicable to large proportions of target populations. The compositions comprise adjuvants such as cationic lipids.

Abstract: Provided herein are novel immunotherapeutic interventions comprising the use of cationic lipid-based compositions for direct tumor injection. The compositions are effective for reducing, eliminating and/or preventing tumor growth and cancer proliferation with local, targeted, systemic and distal effectiveness. The compositions may comprise one or more cationic lipids such as DOTAP and DOTMA, and may further comprise additional components such as antigens, therapeutic agents and/or pharmaceutically acceptable excipients.

Abstract: The present invention provides compositions and methods for stimulating an immune response using cationic lipids alone or in combination with antigens.

Abstract: The present disclosure provides vaccine compositions comprising at least one adjuvant and at least one antigen, wherein the adjuvant is a cationic lipid. The disclosure also provides methods of treating a disease in a mammal, methods of preventing a disease in a mammal, and methods of effecting antigen cross presentation to induce a humoral immune response and a cellular immune response in a mammal utilizing the vaccine compositions. Cross presentation of various antigens can be achieved by formulating the specific antigens with cationic lipids possessing adjuvant properties.

Abstract: The present invention provides compositions and methods for stimulating an immune response using cationic lipids alone or in combination with antiigens.

Abstract: The present disclosure provides vaccine compositions comprising at least one adjuvant and at least one therapeutic factor. The disclosure also provides methods of reducing an immune suppressor cell population in a mammal, methods of augmenting an immune response in a mammal, and methods of treating diseases in a mammal utilizing the vaccine compositions.

Abstract: A composition and method for activating immune cells ex-vivo, or inducing an immune response in a subject including a composition comprising at least one chiral cationic lipid. The chiral cationic lipid in one embodiment comprises a nonsteroidal cationic lipid having a structure represented by formula (I); wherein in R1 is a quaternary ammonium group, Y1 is a space chosen from a hydrocarbon chain, an ester, a ketone, and a peptide, C* is a chiral carbon, R2 and R3 are independently chosen from a saturated fatty acid, an unsaturated fatty acid, an ester-linked hydrocarbon, phosphor-diesters, and combination thereof.

Abstract: The present disclosure provides vaccine compositions comprising at least one adjuvant and at least one therapeutic factor. The disclosure also provides methods of reducing an immune suppressor cell population in a mammal, methods of argumenting an immune response in a mammal, and methods of treating a diseases in a mammal utilizing the vaccine compositions.

Abstract: The present disclosure provides vaccine compositions comprising at least one adjuvant and at least one therapeutic factor. The disclosure also provides methods of reducing an immune suppressor cell population in a mammal, methods of argumenting an immune response in a mammal, and methods of treating a diseases in a mammal utilizing the vaccine compositions.

Abstract: A composition and method for activating immune cells ex-vivo, or inducing an immune response in a subject including a composition comprising at least one chiral cationic lipid. The chiral cationic lipid in one embodiment comprises a nonsteroidal cationic lipid having a structure represented by formula (I); wherein in R1 is a quaternary ammonium group, Y1 is a space chosen from a hydrocarbon chain, an ester, a ketone, and a peptide, C* is a chiral carbon, R2 and R3 are independently chosen from a saturated fatty acid, an unsaturated fatty acid, an ester-linked hydrocarbon, phosphor-diesters, and combination thereof.

Abstract: A composition and method for activating immune cells ex-vivo, or inducing an immune response in a subject including a composition comprising at least one chiral cationic lipid. The chiral cationic lipid in one embodiment comprises a nonsteroidal cationic lipid having a structure represented by formula (I); wherein in R1 is a quaternary ammonium group, Y1 is a spacer chosen from a hydrocarbon chain, an ester, a ketone, and a peptide, C* is a chiral carbon, R2 and R3 are independently chosen from a saturated fatty acid, an unsaturated fatty acid, an ester-linked hydrocarbon, phosphor-diesters, and combinations thereof.