Fig. 5From: Combining a noble gas with radiotherapy: glutamate receptor antagonist xenon may act as a radiosensitizer in glioblastomaImmunofluorescence staining of U87, U251 and HeLa cells using N-methyl-D-aspartate receptor (NMDAR) subunit GLUN1 antibodies as well as α-amino-3-hydroxy-5-methyl-4-isoxazole propionic acid receptor (AMPAR) subunit GLUA1 antibodies (flouresceine green coloured) merged with 4′,6-diamidino-2-phenylindole (DAPI) for nuclear staining (blue coloured). As all cell lines showed staining of GluN1 and GluA1, we consider this as an indication for the presence of NMDAR and AMPARBack to article page