Abstract: A negatively charged glycosaminoglycan is provided for use as a medicament for the treatment of cancer. A combined administration of a negatively charged glycosaminoglycan is provided in which the glycosaminoglycan is characterised by the absence of the terminal pentasaccharide of Heparin, and an inhibitor of the MAPK/ERK pathway. A combined administration of a glycosaminoglycan and a MAPK/ERK pathway inhibitor is provided as a medicament for the treatment of cancer types that exhibit a resistance towards a single MAPK/ERK pathway inhibitor treatment.

Abstract: A negatively charged glycosaminoglycan is provided for use as a medicament for the treatment of cancer A combined administration of a negatively charged glycosaminoglycan is provided in which the glycosaminoglycan is characterised by the absence of the terminal pentasaccharide of Heparin, and an inhibitor of the MAPK/ERK pathway. A combined administration of a glycosaminoglycan and a MAPK/ERK pathway inhibitor is provided as a medicament for the treatment of cancer types that exhibit a resistance towards a single MAPK/ERK pathway inhibitor treatment.

Abstract: The growth and/or proliferation of mammalian cells are modulated by modulating the physical interaction between platelets (thrombocytes) and the surface of the cells. Sulfated polysaccharides, preferably glycosaminoglycans, can be used as a medicament for the inhibition of the physical interaction between the cell surface and platelets in the treatment of a medical disorder associated with unwanted cell growth and/or proliferation. The physical interaction between platelets (thrombocytes) and the surface of the cells can be modulated in vitro in order to modulate cell proliferation. Inhibition of the interaction between the cell surface and platelets can inhibit cell growth, and enhancement of the interaction between platelets and the surface of the cell can enhance cell growth.