Nicotine regulates nicotinic cholinergic receptors and subunit mRNAs in PC 12 cells through protein kinase A.


To understand the up-regulation of neuronal nicotinic cholinergic receptors (nAcChRs) that results from chronic in vivo treatment with nicotine, we studied the effect of nicotine on [3H]nicotine binding sites on PC 12 cells. PC 12 cells were grown in nicotine hemisulfate (10(-6) to 10(-3) M) or vehicle for 7 days, and specific [3H]nicotine binding was… (More)


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