Anatabine dicitrate is a tobacco alkaloid that can cross the blood-brain barrier. Anatabine dicitrate is a potent α4β2 nAChR agonist. Anatabine dicitrate inhibits NF-κB activation lower amyloid-β (Aβ) production by preventing the β-cleavage of amyloid precursor protein (APP). Anatabine dicitrate has anti-inflammatory effects and has the potential for neurodegenerative disorders treatment.
体外研究
Anatabine (600 μg/mL; 24 hours; SHSY-5Y cells) treatment shows an inhibition of p65 NF-κB phosphorylation.
Anatabine (500-1000μg/mL; 30 minutes; SHSY-5Y cells) treatment fully prevents the increase in BACE-1 mRNA levels induced by TNF-α. After 24 hours, Anatabine treatment shows a dose-dependent inhibition of BACE-1 protein levels.
Anatabine dose dependently inhibits Aβ1-40 and Aβ1-42 with an approximate half maximal inhibitory concentration of 640 μg/mL for both Aβ1-40 and Aβ1-42 in 7W CHO cells. Anatabine inhibits sAPPβ secretion without impacting sAPPα suggesting that Anatabine is preventing the β-cleavage of amyloid precursor protein (APP).
Western Blot Analysis
Cell Line:
SHSY-5Y cells
Concentration:
600 μg/mL
Incubation Time:
24 hours
Result:
An inhibition of p65 NF-κB phosphorylation was observed.
RT-PCR
Cell Line:
SHSY-5Y cells
Concentration:
500 μg/mL, 1000 μg/mL
Incubation Time:
30 minutes
Result:
Fully prevented the increase in BACE-1 mRNA levels induced by TNF-α.
体内研究
Anatabine (0.5-2 mg/kg; intraperitoneal injection; daily; for 4 days; transgenic mouse) treatment significantly lowers brain soluble Aβ1-40 and Aβ1-42 levels in a transgenic mouse model of Alzheimer's disease.
Animal Model:
Transgenic mice overexpressing the human APP695sw mutation and the presenilin-1 mutation M146L (Tg PS1/APPsw) (50 week-old)
Dosage:
0.5 mg/kg, 2 mg/kg
Administration:
Intraperitoneal injection; daily; for 4 days
Result:
Significantly lowered brain soluble Aβ1-40 and Aβ1-42 levels in a transgenic mouse model of Alzheimer's disease.
运输条件
Room temperature in continental US; may vary elsewhere.