to this purpose , agents that affect primarily the cytosolic concentration of ca2+ , [ ca2+ ] i ( ionomycin , high k+ ) , agents that affect cyclic amp concentrations ( forskolin ; the adenosine analogue phenylisopropyladenosine ; clonidine ) and activators of protein kinase c ( phorbol esters ) were applied alone or in combination to either growing chromaffin-like pc12-cells , or to neuron-like pc12+ cells differentiated by treatment with ngf ( nerve growth factor ) .
C0001443
adenosine
C0031484
phenylisopropyladenosine