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Early Life History of Coreoperca herzi in Han River, Korea.

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Article GUID: 32411919
Non-invasive in vivo hyperspectral imaging of the retina for potential biomarker use in Alzheimer's disease.

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Nat Commun. 2019 Sep 17;10(1):4227 Authors: Hadoux X, Hui F, Lim JKH, Masters CL, Pébay A, Chevalier S, Ha J, Loi S, Fowler CJ, Rowe C, Villemagne VL, Taylor EN, Fluke C, Soucy JP, Lesage F, ...

Article GUID: 31530809
Tuning Hsf1 levels drives distinct fungal morphogenetic programs with depletion impairing Hsp90 function and overexpression expanding the target space.

Author(s): Veri AO, Miao Z, Shapiro RS, Tebbji F, O'Meara TR, Kim SH, Colazo J, Tan K, Vyas VK, Whiteway M, Robbins N, Wong KH, Cowen LE

PLoS Genet. 2018 03;14(3):e1007270 Authors: Veri AO, Miao Z, Shapiro RS, Tebbji F, O'Meara TR, Kim SH, Colazo J, Tan K, Vyas VK, Whiteway M, Robbins N, Wong KH, Cowen LE

Article GUID: 29590106
Inhibition of β-site amyloid precursor protein cleaving enzyme 1 and cholinesterases by pterosins via a specific structure-activity relationship with a strong BBB permeability.

Author(s): Jannat S, Balupuri A, Ali MY, Hong SS, Choi CW, Choi YH, Ku JM, Kim WJ, Leem JY, Kim JE, Shrestha AC, Ham HN, Lee KH, Kim DM, Kang NS, Park GH

Exp Mol Med. 2019 02 12;51(2):12 Authors: Jannat S, Balupuri A, Ali MY, Hong SS, Choi CW, Choi YH, Ku JM, Kim WJ, Leem JY, Kim JE, Shrestha AC, Ham HN, Lee KH, Kim DM, Kang NS, Park GH

Article GUID: 30755593
Title:Inhibition of β-site amyloid precursor protein cleaving enzyme 1 and cholinesterases by pterosins via a specific structure-activity relationship with a strong BBB permeability.
Authors:Jannat S,  Balupuri A,  Ali MY,  Hong SS,  Choi CW,  Choi YH,  Ku JM,  Kim WJ,  Leem JY,  Kim JE,  Shrestha AC,  Ham HN,  Lee KH,  Kim DM,  Kang NS,  Park GH
Link:https://www.ncbi.nlm.nih.gov/pubmed/30755593?dopt=Abstract
Category:Exp Mol Med
PMID:30755593
Dept Affiliation: CHEMBIOCHEM
1 Department of Biochemistry and Molecular Biology, College of Medicine, Korea Molecular Medicine and Nutrition Research Institute, Korea University, Seoul, 02841, Korea.
2 Graduate School of New Drug Discovery and Development, Chungnam National University, Daejeon, 34134, Korea.
3 Department of Chemistry and Biochemistry, Faculty of Arts and Science, Concordia University, 7141 Sherbrooke St. W., Montreal, QC, H4B 1R6, Canada.
4 Center for Structural and Functional Genomic, Department of Biology, Faculty of Arts and Science, Concordia University, 7141 Sherbrooke St. W., Montreal, QC, H4B 1R6, Canada.
5 Bio-Center, Gyeonggido Business & Science Accelerator, Suwon, 16229, Korea.
6 College of Pharmacy, Woosuk University, Wanju, Jeonbuk, 55338, Korea.
7 Division of Radiation Cancer Research, Korea Institute of Radiological and Biomedical Sciences, Seoul, 01812, Korea.
8 Department of Creative Arts Psychotherapy, College of Cultural Convergence, Jeonju University, Jeonju, 55069, Korea.
9 Graduate School of New Drug Discovery and Development, Chungnam National University, Daejeon, 34134, Korea. nskang@cnu.ac.kr.
10 Department of Biochemistry and Molecular Biology, College of Medicine, Korea Molecular Medicine and Nutrition Research Institute, Korea University, Seoul, 02841, Korea. ghpark@korea.ac.kr.

Description:

Inhibition of ß-site amyloid precursor protein cleaving enzyme 1 and cholinesterases by pterosins via a specific structure-activity relationship with a strong BBB permeability.

Exp Mol Med. 2019 02 12;51(2):12

Authors: Jannat S, Balupuri A, Ali MY, Hong SS, Choi CW, Choi YH, Ku JM, Kim WJ, Leem JY, Kim JE, Shrestha AC, Ham HN, Lee KH, Kim DM, Kang NS, Park GH

Abstract

We extracted 15 pterosin derivatives from Pteridium aquilinum that inhibited ß-site amyloid precursor protein cleaving enzyme 1 (BACE1) and cholinesterases involved in the pathogenesis of Alzheimer's disease (AD). (2R)-Pterosin B inhibited BACE1, acetylcholinesterase (AChE) and butyrylcholinesterase (BChE) with an IC50 of 29.6, 16.2 and 48.1?µM, respectively. The Ki values and binding energies (kcal/mol) between pterosins and BACE1, AChE, and BChE corresponded to the respective IC50 values. (2R)-Pterosin B was a noncompetitive inhibitor against human BACE1 and BChE as well as a mixed-type inhibitor against AChE, binding to the active sites of the corresponding enzymes. Molecular docking simulation of mixed-type and noncompetitive inhibitors for BACE1, AChE, and BChE indicated novel binding site-directed inhibition of the enzymes by pterosins and the structure-activity relationship. (2R)-Pterosin B exhibited a strong BBB permeability with an effective permeability (Pe) of 60.3×10-6?cm/s on PAMPA-BBB. (2R)-Pterosin B and (2R,3?R)-pteroside C significantly decreased the secretion of Aß peptides from neuroblastoma cells that overexpressed human ß-amyloid precursor protein at 500?µM. Conclusively, our study suggested that several pterosins are potential scaffolds for multitarget-directed ligands (MTDLs) for AD therapeutics.

PMID: 30755593 [PubMed - in process]