sentence: All four NF1-associated MPNST cell line ( sNF96.2 , ST88-14 , T265 and 90-8TL ) and one sporadic MPNST cell line ( STS26T ) were more sensitive to doxorubicin than the neurofibroma Hs53.T cells , many of them displaying IC values of less than 50 ng / ml ( Fig 6A and 6B ) .