these cultures were used to demonstrate ( a ) that schwann cells could be generated and maintained in culture free of fibroblast contamination , ( b ) that schwann cells could exist in either a quiescent or proliferative state , depending on the absence of neurons , ( c ) that sensory ganglia could be obtained that would provide an outgrowth of axons entirely free of non-neuronal cells even in the absence of antimitotic agents , and ( d ) that quiescent schwann cells , induced to proliferate by 'bare ' axons , could ensheath and , in time , myelinate some of these axons .
C0027882
neurons
C0004461
axons