by this procedure a subline of burkitt 's lymphoma cells ( raji ) was made 290-fold resistant ( raji/mtx-r ) , t-cell leukemia cells ( ccrf-cem ) were obtained 210-fold resistant ( cem/mtx-r ) , and 3 mtx-resistant human osteosarcoma lines were selected : te-85/mtx-r ( 19-fold resistant ; relative to wild-type ) ;
C0029463
osteosarcoma
C0025677
mtx