vla-2 was found on many of the same cells as vla-1 ( inactivated t cells , t cell leukemia cells , fibroblasts , sk-n-sh neuroblastoma cells ) , but vla-1 and vla-2 can be expressed independently , because vla-2 was also present on vla-1-negative cells such as hsb and platelets , and vla-1 was present on vla-2-negative c8215 cells .
C0007634
cells
C0016030
fibroblasts