HLA-G and infection: To this purpose, ECs were seeded on BME under different condition, namely after infection with HHV-6A and -6B, after transfection with a U94 expressing plasmid (pSR2pH), or after treatment with 3 μg/ml of purified U94 recombinant protein, in the presence or absence of 1 mg/ml of anti-HLA-G antibody.