Discovery of nitazoxanide-based derivatives as autophagy activators for the treatment of Alzheimer's disease

© 2020 Chinese Pharmaceutical Association and Institute of Materia Medica, Chinese Academy of Medical Sciences. Production and hosting by Elsevier B.V..

Drug repurposing is an efficient strategy for new drug discovery. Our latest study found that nitazoxanide (NTZ), an approved anti-parasite drug, was an autophagy activator and could alleviate the symptom of Alzheimer's disease (AD). In order to further improve the efficacy and discover new chemical entities, a series of NTZ-based derivatives were designed, synthesized, and evaluated as autophagy activator against AD. All compounds were screened by the inhibition of phosphorylation of p70S6K, which was the direct substrate of mammalian target of rapamycin (mTOR) and its phosphorylation level could reflect the mTOR-dependent autophagy level. Among these analogs, compound 22 exhibited excellent potency in promoting β-amyloid (Aβ) clearance, inhibiting tau phosphorylation, as well as stimulating autophagy both in vitro and in vivo. What's more, 22 could effectively improve the memory and cognitive impairments in APP/PS1 transgenic AD model mice. These results demonstrated that 22 was a potential candidate for the treatment of AD.

Medienart:

E-Artikel

Erscheinungsjahr:

2020

Erschienen:

2020

Enthalten in:

Zur Gesamtaufnahme - volume:10

Enthalten in:

Acta pharmaceutica Sinica. B - 10(2020), 4 vom: 16. Apr., Seite 646-666

Sprache:

Englisch

Beteiligte Personen:

Li, Xiaokang [VerfasserIn]
Lu, Jian [VerfasserIn]
Xu, Yixiang [VerfasserIn]
Wang, Jiaying [VerfasserIn]
Qiu, Xiaoxia [VerfasserIn]
Fan, Lei [VerfasserIn]
Li, Baoli [VerfasserIn]
Liu, Wenwen [VerfasserIn]
Mao, Fei [VerfasserIn]
Zhu, Jin [VerfasserIn]
Shen, Xu [VerfasserIn]
Li, Jian [VerfasserIn]

Links:

Volltext

Themen:

β-amyloid
Aβ, β-amyloid
AChEIs, acetylcholinesterase inhibitors
AD, Alzheimer's disease
APP, amyloid precursor protein
Alzheimer's disease
Autophagy
BBB, blood–brain barrier
CNS, central nervous system
Journal Article
MTOR, mammalian target of rapamycin
MWM, Morris Water Maze
NCEs, new chemical entities
NFTs, neurofibrillary tangles
NMDA, N-methyl-d-aspartate
NTZ, nitazoxanide
Nitazoxanide
PAMPA, parallel artificial membrane permeation assay
PBL, porcine brain lipid
SPs, senile plaques
Tau protein
WORT, wortmannin

Anmerkungen:

Date Revised 28.09.2020

published: Print-Electronic

Citation Status PubMed-not-MEDLINE

doi:

10.1016/j.apsb.2019.07.006

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM309068568