CXCR3 and melanoma: As our previous results had shown a prominent expression of the CXCR3 chemokine receptor in human melanoma metastases, we subsequently wanted to determine whether also the CXCR3 ligands are expressed in melanoma metastases, by means of performing immunofluorescence and confocal microscopy of melanoma cells isolated from normal skin and melanoma metastases, using anti-CXCL9 (Alexa-488) antibody, anti-CD144 (Alexa-633) antibody and phalloidin-568.