Effects of pyruvate on the growth of normal and transformed hamster embryo fibroblasts

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Abstract
The growth of NIL and NILpy hamster embryo fibroblasts was determined in the presence and absence of pyruvate as a component of the growth medium. It was demonstrated that NIL cells respond to the presence of pyruvate by decreasing cell doubling time, glucose utilization, glutamine utilization, and increasing lactate production with the effects being more pronounced at low inoculum densities. Polyoma‐virus transformed NIL cells (NILpy) demonstrate none of the above effects upon pyruvate addition regardless of initial cell inoculum density.