Migration of mesenchymal stem cells towards glioblastoma cells depends on hepatocyte-growth factor and is enhanced by aminolaevulinic acid-mediated photodynamic treatment

► Glioblastoma cells attract mesenchymal stem cells via hepatocyte-growth factor. ► Migration increases after aminolaevulinic acid-mediated photodynamic treatment. ► Photodynamic treatment of glioblastoma cells induces apoptosis. ► Photodynamic treatment is associated with up-regulation of hepatocyte-growth factor. ► Enhanced migration is caused by increase in hepatocyte-growth factor.