the reverse transformation reaction of chinese hamster ovary cells from compact , epithelial-like , randomly growing , heavily knobbed , lectin reactive cells into stretched , tighly adherent , smooth-surfaced , lectin resistant , fibroblast-like cells normally elicited by dibutyryl camp can be produced to its complete extent by n6-monobutyryl camp or 8-bromo-camp , o2'-monobutyryl camp is ineffective as is camp itself in the absence of an inhibitor of phosphodiesterase activity .
C0007634
cells
C0016030
fibroblast