Therefore, we analyzed the surface expression levels of ICAM-1 and B7-2 in two KSHV singly positive PEL cell lines, BCBL-1 and BC-3, one KSHV and EBV dual positive PEL cell line, JSC-1, two EBV-infected Burkitt’s lymphoma (BL) cell lines, Raji and Daudi, and a virus-negative B cell lymphoma line, MC116 (S1 Fig). Here, ICAM1 is linked to B-cell non-Hodgkin lymphoma.