The present invention relates to a vaccine composition V comprising a peptidic entity A comprising one or more sequence motifs A1 of the sequence RR-X1a-X1b-L (SEQ ID NO: 23) wherein X1a is a hydrophobic amino acid moiety and X1b is a peptide bond or a hydrophobic amino acid moiety, or an analogue thereof, an antigen of interest B and silica particles C embracing A and B. Further, the present invention relates to the peptidic entity A usable for such purpose and pharmaceutical and non-pharmaceutical uses of the vaccine composition V.
