Abstract: The invention falls within the fields of pharmaceutical sciences, immunology and methods of treatment of cancer Methods. More specifically, the invention relates to a compound for modulating one or more innate immune pathways selected from RLR, TLR, OAS and/or oncostatin M, said compound being amblyomin-×or peptides derived from amblyomin-X. Use of said compound for preparing medicines; a pharmaceutical composition comprising said compound, a method for modulating said pathways in vitro and a method of treatment are also described.

Abstract: The invention pertains to the technical fields of pharmaceutical sciences, immunology, diagnosis and/or treatment of cancer. Specifically, the invention relates to peptides derived from the C-terminal portion of the tick amblyomin-X protein, said peptides being intended for targeting or promoting the internalization of molecular entities into the intracellular domain of eukaryotic or neoplastic cells. The invention also relates to the use of said peptides for modifying other pharmaceutically active ingredients, to a pharmaceutical composition comprising said peptides and to a method of diagnosis, prognosis and/or treatment of cancer or other cell-altering conditions.