ABCC1 and plexiform neurofibroma: NF02.2, an MPNST-derived cell line (ATCC [45]) showed significant and consistent expression of ABCC1. Quantitative real-time PCR confirms the high level of expression of ABCC1 in the NF02.2 cell line relative to benign neurofibroma-derived cells and other ABCC family members (Figure 2A).