Notably, this effect was exclusive to UVB radiation, as irradiation of the melanoma cell lines WM278 und 1205LU with UVA (340–400 nm, 3 or 7.5 J/cm2) did not affect Vα3S1/Vβ13S1 TCR stimulation (WM278, 1205Lu) and HLA-C expression (1205LU) by the melanoma cell lines tested (Supplementary Figures S4B and S5A,B). Here, HLA-C is linked to melanoma.