cytotoxicity ( i.e. , the ability to inhibit proliferation ) for the friend erythroid cells was restored completely to the nsp-inactivated exotoxin by conjugating it to adif , an autocrine factor secreted by chicken erythroleukemia cells which selectively inhibits the differentiation of erythroid cells such as friend erythroleukemia cells without inhibiting their proliferation .
C0007589
the differentiation
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cells