Effect of a sulfhydryl inhibitor on in vitro bone marrow colonies (CFU-c).

A dose-related increase in the number of in vitro colony-forming units. CFU-c, was observed in mouse bone marrow cell suspensions following the administration of the sulfhydryl inhibitor, sodium iodoacetate. No effect on CFU-s was observed at the dosages and the periods selected for examination. Direct exposure of marrow cells in vitro to various concentrations of iodoacetate did not influence colony formation.