Abstract: Essentially pure compounds of the formulas (I) to (XX) are provided. Compositions and methods for enhancing or stimulating an immune response are also provided. The compounds, provided are advantageous in that the compounds are essentially pure and free from contaminants encountered when such compounds are purified from natural sources.

Abstract: Essentially pure compounds of the formulas (I) to (V) are provided. Compositions and methods for enhancing or stimulating an immune response are also provided. The compounds, provided are advantageous in that the compounds are essentially pure and free from contaminants encountered when such compounds are purified from natural sources.

Abstract: Essentially pure compounds of the formulas (I) to (XXV) are provided. Compositions and methods for enhancing or stimulating an immune response are also provided. The compounds, provided are advantageous in that the compounds are essentially pure and free from contaminants encountered when such compounds are purified from natural sources.

Abstract: Essentially pure compounds of the formulas (I) to (XX) are provided. Compositions and methods for enhancing or stimulating an immune response are also provided. The compounds, provided are advantageous in that the compounds are essentially pure and free from contaminants encountered when such compounds are purified from natural sources.

Abstract: Essentially pure compounds of the formulas (I) to (XX) are provided. Compositions and methods for enhancing or stimulating an immune response are also provided. The compounds, provided are advantageous in that the compounds are essentially pure and free from contaminants encountered when such compounds are purified from natural sources.

Abstract: Essentially pure compounds of the formulas (I) to (XXV) are provided. Compositions and methods for enhancing or stimulating an immune response are also provided. The compounds, provided are advantageous in that the compounds are essentially pure and free from contaminants encountered when such compounds are purified from natural sources.

Abstract: Essentially pure compounds of the formulas (I) to (XX) are provided. Compositions and methods for enhancing or stimulating an immune response are also provided. The compounds, provided are advantageous in that the compounds are essentially pure and free from contaminants encountered when such compounds are purified from natural sources.

Abstract: The invention relates to an immunogenic composition which comprises, firstly, a carrier and, secondly, as antigenic structure, conjugates comprising all or part of the amino acid sequences of at least one peptide derived from an extracellular loop of the P-170 protein, each peptide being combined with several molecules of fatty acid containing a carbon chain of between C12 and C24 so as to allow, under suitable administration conditions, the induction of anti-P-170 antibodies. The invention relates to said composition for defining means for treating multidrug resistances.

Abstract: The invention relates to an immunogenic composition which comprises, firstly, a carrier and, secondly, as antigenic structure, conjugates comprising all or part of the amino acid sequences of at least one peptide derived from an extracellular loop of the P-170 protein, each peptide being combined with several molecules of fatty acid containing a carbon chain of between C12 and C24 so as to allow, under suitable administration conditions, the induction of anti-P-170 antibodies.

Abstract: The invention relates to an immunogenic composition which comprises, firstly, a carrier and, secondly, as antigenic structure, conjugates comprising all or part of the amino acid sequences of at least one peptide derived from an extracellular loop of the P-170 protein, each peptide being combined with several molecules of fatty acid containing a carbon chain of between C12 and C24 so as to allow, under suitable administration conditions, the induction of anti-P-170 antibodies. The invention relates to said composition for defining means for treating multidrug resistances.

Abstract: The invention relates to conjugates comprising all or part of the amino acid sequences of at least one peptide derived from an extracellular loop of the P-170 protein. The peptide may be covalently attached to spacers which may be polyethyleneglycol (PEG), polyglycine, polylysine or any polymer chain suitable for human use and is coupled at its free end to a phospholipids, e.g., phosphatidylethanolamine or any other chemically suitable phospholipid.