CHRNA4 and neuroblastoma: Adult male and female C57BL/6J mice (3-6 months) genetically modified to contain fluorescent nicotinic acetylcholine receptors (nAChRs) (α4-mCherryα6-GFP mice) were administered intraperitoneal injection of farnesol (0.1-10 mg/kg) with or without nicotine (0.5 mg/kg); mouse neuroblastoma 2a (neuro-2a) cells transfected with α4-GFPβ2 and β2WT nAChR subunits and treated with 500 nM farnesol for 24 h