tokens: Although the mutant strain was able to kill HL-60- and THP-1- derived macrophages , it could not replicate within a protozoan host , Acanthamoeba castellanii .
folded_tokens: although the mutant strain was able to kill hl-60- and thp-1- derived macrophages , it could not replicate within a protozoan host , acanthamoeba castellanii .
labels: O O B-mono_cell I-mono_cell O O O O O O O O O O O O O O O O B-mono_cell I-mono_cell O B-mono_cell I-mono_cell O