Design, synthesis and biological evaluation of new multi-target scutellarein hybrids for treatment of Alzheimer's disease

被引：6

作者：

Luo, Keke ^{[1
,2
,4
]}

Chen, Jiao ^{[1
,2
,4
]}

Li, Hui ^{[1
,2
,4
]}

Wu, Dirong ^{[1
,2
,4
]}

Du, Yuanjiang ^{[1
,2
,4
]}

Zhao, Shanshan ^{[5
]}

Liu, Ting ^{[1
,2
,3
]}

Li, Li ^{[1
,2
]}

Dai, Zeqin ^{[1
,2
]}

Li, Yongjun ^{[3
]}

Zhao, Yonglong ^{[1
,2
]}

Tang, Lei ^{[5
]}

Fu, Xiaozhong ^{[1
,2
]}

机构：

[1] Guizhou Med Univ, State Key Lab Funct & Applicat Med Plants, Guiyang 550004, Guizhou, Peoples R China

[2] Guizhou Med Univ, Sch Pharm, Guiyang 550004, Peoples R China

[3] Guizhou Med Univ, Guizhou Prov Key Lab Pharmaceut, Guiyang 550004, Peoples R China

[4] Minist Educ, Natl Engn Res Ctr Miaos Med, Engn Res Ctr Dev & Applicat Ethn Med, TCM, Guiyang 550004, Guizhou, Peoples R China

[5] Guizhou Med Univ, Coll Pharm, Guizhou Prov Engn Technol Res Ctr Chem Drug R&D, State Key Lab Funct & Applicat Med Plants, Guiyang 550025, Peoples R China

来源：

BIOORGANIC CHEMISTRY | 2023年 / 138卷

基金：

中国国家自然科学基金;

关键词：

Alzheimer's disease; Scutellarein; Platelet aggregation inhibition; Tau hyperphosphorylation; Morris water maze test; THERAPEUTIC STRATEGIES; OXIDATIVE STRESS; ACETYLCHOLINESTERASE; PEPTIDE; DERIVATIVES; BRAIN; TETRAMETHYLPYRAZINE; PATHOGENESIS; HYPOTHESIS; INHIBITORS;

D O I：

10.1016/j.bioorg.2023.106596

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

Scutellarein hybrids were designed, synthesized and evaluated as multifunctional therapeutic agents for the treatment of Alzheimer's disease (AD). Compounds 11a-i, containing a 2-hydroxymethyl-3,5,6-trimethylpyrazine fragment at the 7-position of scutellarein, were found to have balanced and effective multi-target potencies against AD. Among them, compound 11e exhibited the most potent inhibition of electric eel and human acetylcholinesterase enzymes with IC50 values of 6.72 +/- 0.09 and 8.91 +/- 0.08 mu M, respectively. In addition, compound 11e displayed not only excellent inhibition of self- and Cu2+-induced A beta 1-42 aggregation (91.85% and 85.62%, respectively) but also induced disassembly of self- and Cu2+-induced A beta fibrils (84.54% and 83.49% disaggregation, respectively). Moreover, 11e significantly reduced tau protein hyperphosphorylation induced by A beta 25-35, and also exhibited good inhibition of platelet aggregation. A neuroprotective assay demonstrated that pre-treatment of PC12 cells with 11e significantly decreased lactate dehydrogenase levels, increased cell viability, enhanced expression of relevant apoptotic proteins (Bcl-2, Bax and caspase-3) and inhibited RSL3induced PC12 cell ferroptosis. Furthermore, hCMEC/D3 and hPepT1-MDCK cell line permeability assays indicated that 11e would have optimal blood-brain barrier and intestinal absorption characteristics. In addition, in vivo studies revealed that compound 11e significantly attenuated learning and memory impairment in an AD mice model. Toxicity experiments with the compound did not reveal any safety concerns. Notably, 11e significantly reduced beta-amyloid precursor protein (APP) and beta-site APP cleaving enzyme-1 (BACE-1) protein expression in brain tissue of scopolamine-treated mice. Taken together, these outstanding properties qualified compound 11e as a promising multi-target candidate for AD therapy, worthy of further studies.

引用

页数：28

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