Molecular structure of the NQTrp inhibitor with the Alzheimer Aβ1-28 monomer.

Abstract:

:The self-assembly of the amyloid-β (Aβ) peptide of various amino acid lengths into senile plaques is one hallmark of Alzheimer's disease pathology. In the past decade, many small molecules, including NQTrp, have been identified to reduce aggregation and toxicity. However, due to the heterogeneity of the conformational ensemble of Aβ with drugs, we lack detailed structures of the transient complexes. Following our previous simulation of the monomer of Aβ1-28, here we characterize the equilibrium ensemble of the Aβ1-28 monomer with NQTrp by means of extensive atomistic replica exchange molecular dynamics simulations using a force field known to fold diverse proteins correctly. While the secondary structure content and the intrinsic disorder of the whole peptides are very similar and the lifetimes of the salt-bridges remain constant, the population of β-hairpin is reduced by a factor of 1.5 and the population of α-helix in the region 17-24 is increased by a factor of two upon NQTrp binding. These two factors, which impact the free energy barrier for nucleation, provide a first explanation for the reported reduced Aβ1-40/1-42 aggregation kinetics in the presence of NQTrp. Backbone and side-chain interactions of Aβ with NQTrp may also inhibit Aβ-Aβ contacts. The fraction of free Aβ1-28 monomer is, however, on the order of 20-25% at 17.5 mM, and this shows that the affinity of NQTrp is low and hence its inhibitory activity is not very strong. This inhibitor can be improved to reduce the formation of dimer, a critical step in aggregation and toxicity.

journal_name

Eur J Med Chem

authors

Tarus B,Nguyen PH,Berthoumieu O,Faller P,Doig AJ,Derreumaux P

doi

10.1016/j.ejmech.2014.07.002

subject

Has Abstract

pub_date

2015-02-16 00:00:00

pages

43-50

eissn

0223-5234

issn

1768-3254

pii

S0223-5234(14)00608-4

journal_volume

91

pub_type

杂志文章
  • Synthesis of 3,4-diaminobenzoyl derivatives as factor Xa inhibitors.

    abstract::The coagulation factor Xa (FXa) plays a central role in the blood coagulation cascade. Recent studies have shown that FXa is a particularly attractive target for the development of oral antithrombotic agents. In view of the excellent pharmaceutical properties of 1,2-phenylenediamine-based FXa inhibitors and the report...

    journal_title:European journal of medicinal chemistry

    pub_type: 杂志文章

    doi:10.1016/j.ejmech.2015.06.012

    authors: Yang J,Su G,Ren Y,Chen Y

    更新日期:2015-08-28 00:00:00

  • Synthesis, characterization and DNA binding studies of new ruthenium(II)bisterpyridine complexes.

    abstract::Two new ruthenium(II) complexes, [Ru(itpy)2](PF6)2, 1 and [Ru(bitpy)2](PF6)2 2, were synthesized and characterized by ESI-Mass, UV-Visible, 1H NMR, fluorescence spectroscopy and cyclic voltammetry. Complex 1 has been characterized crystallographically. Interaction of these complexes with CT-DNA has been studied using ...

    journal_title:European journal of medicinal chemistry

    pub_type: 杂志文章

    doi:10.1016/j.ejmech.2009.10.008

    authors: Sathyaraj G,Weyhermüller T,Nair BU

    更新日期:2010-01-01 00:00:00

  • ((S)-3-Mercapto-2-methylpropanamido)acetic acid derivatives as metallo-β-lactamase inhibitors: Synthesis, kinetic and crystallographic studies.

    abstract::The emergence and global spread of metallo-β-lactamase (MBL) mediated resistance to almost all β-lactam antibacterials poses a serious threat to public health. Since no clinically useful MBL inhibitors have been reported, there is an urgent need to develop new potent broad-spectrum MBL inhibitors effective against ant...

    journal_title:European journal of medicinal chemistry

    pub_type: 杂志文章

    doi:10.1016/j.ejmech.2018.01.032

    authors: Liu S,Jing L,Yu ZJ,Wu C,Zheng Y,Zhang E,Chen Q,Yu Y,Guo L,Wu Y,Li GB

    更新日期:2018-02-10 00:00:00

  • New synthesis of 3-(β-D-glucopyranosyl)-5-substituted-1,2,4-triazoles, nanomolar inhibitors of glycogen phosphorylase.

    abstract::O-Perbenzoylated 5-(β-D-glucopyranosyl)tetrazole was reacted with N-benzyl carboximidoyl chlorides to give the corresponding 4-benzyl-3-(β-D-glucopyranosyl)-5-substituted-1,2,4-triazoles. Removal of the O-benzoyl and N-benzyl protecting groups by base catalysed transesterification and catalytic hydrogenation, respecti...

    journal_title:European journal of medicinal chemistry

    pub_type: 杂志文章

    doi:10.1016/j.ejmech.2014.02.041

    authors: Kun S,Bokor É,Varga G,Szőcs B,Páhi A,Czifrák K,Tóth M,Juhász L,Docsa T,Gergely P,Somsák L

    更新日期:2014-04-09 00:00:00

  • Targeting Aryl hydrocarbon receptor for next-generation immunotherapies: Selective modulators (SAhRMs) versus rapidly metabolized ligands (RMAhRLs).

    abstract::Aryl Hydrocarbon Receptor (AhR) constitutes a major network hub of genomic and non-genomic signaling pathways, connecting host's immune cells to environmental factors. It shapes innate and adaptive immune processes to environmental stimuli with species-, cell- and tissue-type dependent specificity. Although an ever in...

    journal_title:European journal of medicinal chemistry

    pub_type: 杂志文章,评审

    doi:10.1016/j.ejmech.2019.111842

    authors: Dolciami D,Ballarotto M,Gargaro M,López-Cara LC,Fallarino F,Macchiarulo A

    更新日期:2020-01-01 00:00:00

  • The chemistry and biological potential of azetidin-2-ones.

    abstract::Azetidin-2-ones, commonly referred as β-lactams, represent a unique ring system, with interesting chemistry and great biological potential. Besides its well known antibiotic activity, this ring system exhibits a wide range of activities, attracting the attention of researchers. The biological and pharmacological profi...

    journal_title:European journal of medicinal chemistry

    pub_type: 杂志文章,评审

    doi:10.1016/j.ejmech.2014.01.002

    authors: Arya N,Jagdale AY,Patil TA,Yeramwar SS,Holikatti SS,Dwivedi J,Shishoo CJ,Jain KS

    更新日期:2014-03-03 00:00:00

  • Homology modeling in tandem with 3D-QSAR analyses: a computational approach to depict the agonist binding site of the human CB2 receptor.

    abstract::CB2 receptor belongs to the large family of G-protein coupled receptors (GPCRs) controlling a wide variety of signal transduction. The recent crystallographic determination of human β2 adrenoreceptor and its high sequence similarity with human CB2 receptor (hCB2) prompted us to compute a theoretical model of hCB2 base...

    journal_title:European journal of medicinal chemistry

    pub_type: 杂志文章

    doi:10.1016/j.ejmech.2011.07.023

    authors: Cichero E,Ligresti A,Allarà M,di Marzo V,Lazzati Z,D'Ursi P,Marabotti A,Milanesi L,Spallarossa A,Ranise A,Fossa P

    更新日期:2011-09-01 00:00:00

  • Synthesis of [11C]FEDAA1106 as a new PET imaging probe of peripheral benzodiazepine receptor expression.

    abstract::Peripheral benzodiazepine receptor (PBR) is associated with neuroinflammation and tumor progression. [(11)C]DAA1106 and [(18)F]FEDAA1106 are two promising radioligands for positron emission tomography (PET) imaging of PBR. This study was designed to develop a new radiolabeled analog of [(11)C]DAA1106 and [(18)F]FEDAA1...

    journal_title:European journal of medicinal chemistry

    pub_type: 杂志文章

    doi:10.1016/j.ejmech.2008.08.001

    authors: Wang M,Gao M,Hutchins GD,Zheng QH

    更新日期:2009-06-01 00:00:00

  • Design, synthesis and potential 6 Hz psychomotor seizure test activity of some novel 2-(substituted)-3-{[substituted]amino}quinazolin-4(3H)-one.

    abstract::Thirty new 2-(substituted)-3-{[substituted]amino}quinazolin-4(3H)-one were designed and synthesized keeping in view the structural requirement of pharmacophore and evaluated for anticonvulsant activity and neurotoxicity. The anticonvulsant activity of the titled compounds was assessed using the 6 Hz psychomotor seizur...

    journal_title:European journal of medicinal chemistry

    pub_type: 杂志文章

    doi:10.1016/j.ejmech.2011.01.009

    authors: Kumar P,Shrivastava B,Pandeya SN,Stables JP

    更新日期:2011-04-01 00:00:00

  • Anti-inflammatory hybrids of secondary amines and amide-sulfamide derivatives.

    abstract::The CXCR4/CXCL12 chemokine axis can chemotactically accumulate inflammatory cells to local tissues and regulate the release of inflammatory factors. Developing novel CXCR4 modulators may provide a desirable strategy to control the development of inflammation. A series of novel hybrids were designed by integrating the ...

    journal_title:European journal of medicinal chemistry

    pub_type: 杂志文章

    doi:10.1016/j.ejmech.2018.02.085

    authors: Bai R,Sun J,Liang Z,Yoon Y,Salgado E,Feng A,Oum Y,Xie Y,Shim H

    更新日期:2018-04-25 00:00:00

  • Design, synthesis, and biological evaluation of new 2'-deoxy-2'-fluoro-4'-triazole cytidine nucleosides as potent antiviral agents.

    abstract::A series of 4'-[1,2,3]triazole-2'-deoxy-2'-fluoro-β-d-arabinofuranosylcytosines (9-17) were prepared by Cu(I)-mediated [3 + 2] cycloaddition reactions (CuAAC) of 1-(4'-azido-2'-deoxy-2'-fluoro-β-d-arabinofuranosyl)cytosine (1) with appropriate alkynes in good yields. Their structures were fully established by (1)H NMR...

    journal_title:European journal of medicinal chemistry

    pub_type: 杂志文章

    doi:10.1016/j.ejmech.2013.02.042

    authors: Wu J,Yu W,Fu L,He W,Wang Y,Chai B,Song C,Chang J

    更新日期:2013-05-01 00:00:00

  • Discovery of lysosome-targeted covalent anticancer agents based on isosteviol skeleton.

    abstract::Covalent drugs play corresponding bioactivities by forming covalent bonds with the target, which possess many significant pharmacological advantages including high potency, ligand efficiency, and long-lasting effects. However, development of covalent inhibitors is a challenge due to their presumed indiscriminate react...

    journal_title:European journal of medicinal chemistry

    pub_type: 杂志文章

    doi:10.1016/j.ejmech.2020.112896

    authors: Liu J,Li L,Li X,Wang X,Zhao X,Qiao Y,Xu Y,Sun Y,Qian L,Liu Z,Ji A,Lou H

    更新日期:2021-01-01 00:00:00

  • Naphthalimide-based macrophage nucleus imaging probes.

    abstract::The photophysical properties of naphthalimide-based fluorophores can be easily tuned by chemical manipulation of the substituents on that privileged scaffold. Replacement of a OMe group at position 6 in 2-(hydroxyl)ethyl-naphthalimide derivatives by diverse amines, including 2-(hydroxyl)ethylamine, trans-(4-acetamido)...

    journal_title:European journal of medicinal chemistry

    pub_type: 杂志文章

    doi:10.1016/j.ejmech.2020.112407

    authors: Fueyo-González F,Fernández-Gutiérrez M,García-Puentes D,Orte A,González-Vera JA,Herranz R

    更新日期:2020-08-15 00:00:00

  • Development of 3-aryl-1-isoquinolinamines as potent antitumor agents based on CoMFA.

    abstract::Various substituted 3-aryl-1-isoquinolinamines were designed and synthesized based on the previously constructed CoMFA model. Most of the synthesized compounds showed excellent potency in eight different human tumor cell lines as expected. In order to find the exact cytotoxic mechanism of these 3-aryl-1-isoquinolinami...

    journal_title:European journal of medicinal chemistry

    pub_type: 杂志文章

    doi:10.1016/j.ejmech.2010.08.042

    authors: Yang SH,Van HT,Le TN,Khadka DB,Cho SH,Lee KT,Lee ES,Lee YB,Ahn CH,Cho WJ

    更新日期:2010-11-01 00:00:00

  • Synthesis of 7-benzylguanosine cap-analogue conjugates for eIF4E targeted degradation.

    abstract::Eukaryotic translation initiation factor 4E (eIF4E) is a key player in the initiation of cap-dependent translation through recognition of the m7GpppX cap at the 5' terminus of coding mRNAs. As eIF4E overexpression has been observed in a number of human diseases, most notably cancer, targeting this oncogenic translatio...

    journal_title:European journal of medicinal chemistry

    pub_type: 杂志文章

    doi:10.1016/j.ejmech.2019.01.080

    authors: Kaur T,Menon A,Garner AL

    更新日期:2019-03-15 00:00:00

  • The computer-aided discovery of novel family of the 5-HT6 serotonin receptor ligands among derivatives of 4-benzyl-1,3,5-triazine.

    abstract::The work describes a discovery of new chemical family of potent ligands for the 5-HT6 serotonin receptors. During the search for new histamine H4 receptor antagonists among 1,3,5-triazine derivatives, compound 2 (4-benzyl-6-(4-methylpiperazin-1-yl)-1,3,5-triazin-2-amine) was found. Compound 2, weakly active for the H4...

    journal_title:European journal of medicinal chemistry

    pub_type: 杂志文章

    doi:10.1016/j.ejmech.2017.04.033

    authors: Łażewska D,Kurczab R,Więcek M,Kamińska K,Satała G,Jastrzębska-Więsek M,Partyka A,Bojarski AJ,Wesołowska A,Kieć-Kononowicz K,Handzlik J

    更新日期:2017-07-28 00:00:00

  • Platinated benzonaphthyridone is a stronger inhibitor of poly(ADP-ribose) polymerase-1 and a more potent anticancer agent than is the parent inhibitor.

    abstract::Inhibitors of poly(ADP-ribose) polymerase-1 (PARP-1) have shown to be promising in clinical trials against cancer and other diseases, and lots of efforts have been put into the development of organic compounds as more potent PARP-1 inhibitors. Here we describe a strategy to conveniently obtain metal-based PARP-1 inhib...

    journal_title:European journal of medicinal chemistry

    pub_type: 杂志文章

    doi:10.1016/j.ejmech.2013.10.062

    authors: Wang B,Qian H,Yiu SM,Sun J,Zhu G

    更新日期:2014-01-01 00:00:00

  • Pharmacological activity and hydrolysis behavior of novel ibuprofen glucopyranoside conjugates.

    abstract::Novel ester prodrugs (II, III and IV) of ibuprofen (I) were synthesized using alpha-methyl, ethyl and propyl glucopyranoside as promoieties and tested for their anti-inflammatory, analgesic and ulcerogenic activities. Study of their chemical hydrolysis in aqueous buffer (pH 3.0-10.0) showed that these compounds acted ...

    journal_title:European journal of medicinal chemistry

    pub_type: 杂志文章

    doi:10.1016/j.ejmech.2006.05.014

    authors: Zhao X,Tao X,Wei D,Song Q

    更新日期:2006-11-01 00:00:00

  • Design, synthesis and in vitro cell-free/cell-based biological evaluations of novel ERCC1-XPF inhibitors targeting DNA repair pathway.

    abstract::The structure-specific ERCC1-XPF endonuclease is essential for repairing bulky DNA lesions and helix distortions induced by UV radiation, which forms cyclobutane pyrimidine dimers (CPDs), or chemicals that crosslink DNA strands such as cyclophosphamide and platinum-based chemotherapeutic agents. Inhibition of the ERCC...

    journal_title:European journal of medicinal chemistry

    pub_type: 杂志文章

    doi:10.1016/j.ejmech.2020.112658

    authors: Elmenoufy AH,Gentile F,Jay D,Karimi-Busheri F,Yang X,Soueidan OM,Mani RS,Ciniero G,Tuszynski JA,Weinfeld M,West FG

    更新日期:2020-10-15 00:00:00

  • Synthesis and antiproliferative activity of novel polynuclear heterocyclic compounds derived from 2,3-diaminophenazine.

    abstract::2,3-Diaminophenazine 1 was used as a precursor for the preparation of some novel phenazine derivatives such as imidazo[4,5-b]phenazine-2-thione 2, its methylthio 3, ethyl 1-aryl-3H-[1,2,4]triazolo[2,3-a]imidazo[4,5-b]phenazines 8a-c, ethyl (2Z)-[3-aminophenazin-2-yl)amino](phenylhydrazono)ethanoate 9, pyrazino[2,3-b]p...

    journal_title:European journal of medicinal chemistry

    pub_type: 杂志文章

    doi:10.1016/j.ejmech.2013.12.007

    authors: Mahran AM,Ragab SSh,Hashem AI,Ali MM,Nada AA

    更新日期:2015-01-27 00:00:00

  • Development and biological evaluation of ⁹⁹mTc-sulfonamide derivatives for in vivo visualization of CA IX as surrogate tumor hypoxia markers.

    abstract::In vivo visualization of tumor hypoxia related markers, such as the endogenous transmembrane protein CA IX may lead to novel therapeutic and diagnostic applications in the management of solid tumors. In this study 4-(2-aminoethyl)benzene sulfonamide (AEBS, K(i) = 33 nM for CA IX) has been conjugated with bis(aminoetha...

    journal_title:European journal of medicinal chemistry

    pub_type: 杂志文章

    doi:10.1016/j.ejmech.2013.10.027

    authors: Akurathi V,Dubois L,Celen S,Lieuwes NG,Chitneni SK,Cleynhens BJ,Innocenti A,Supuran CT,Verbruggen AM,Lambin P,Bormans GM

    更新日期:2014-01-01 00:00:00

  • Amaryllidaceae alkaloids with new framework types from Zephyranthes candida as potent acetylcholinesterase inhibitors.

    abstract::Three new Amaryllidaceae alkaloids, named zephycandidines I-III (1-3), were isolated from Zephyranthes candida. The structures of 1-3 were elucidated by spectroscopic analyses including HRESIMS, 1H NMR, 13C NMR, DEPT, HSQC, 1H-1H COSY, HMBC, ROESY, and electronic circular dichroism (ECD), as well as ECD calculation. T...

    journal_title:European journal of medicinal chemistry

    pub_type: 杂志文章

    doi:10.1016/j.ejmech.2016.10.057

    authors: Zhan G,Liu J,Zhou J,Sun B,Aisa HA,Yao G

    更新日期:2017-02-15 00:00:00

  • Synthesis of new N3-substituted dihydropyrimidine derivatives as L-/T- type calcium channel blockers.

    abstract::Cardiovascular diseases (CVDs) are the main cause of deaths worldwide. Up-to-date, hypertension is the most significant contributing factor to CVDs. Recent clinical studies recommend calcium channel blockers (CCBs) as effective treatment alone or in combination with other medications. Being the most clinically useful ...

    journal_title:European journal of medicinal chemistry

    pub_type: 杂志文章

    doi:10.1016/j.ejmech.2017.03.080

    authors: Teleb M,Zhang FX,Farghaly AM,Aboul Wafa OM,Fronczek FR,Zamponi GW,Fahmy H

    更新日期:2017-07-07 00:00:00

  • Anthranilic acid based CCK1 receptor antagonists: preliminary investigation on their second "touch point".

    abstract::In this phase of structure-affinity relationship study of VL-0395, a new anthranilic acid based CCK1 selective antagonist, we propose a series of unnatural aminoacidic derivatives. The result of this work is the identification of a new CCK ligand, which possesses an affinity (IC50 = 35 nm) one order of magnitude great...

    journal_title:European journal of medicinal chemistry

    pub_type: 杂志文章

    doi:10.1016/j.ejmech.2005.01.002

    authors: Varnavas A,Lassiani L,Valenta V,Mennuni L,Makovec F,Hadjipavlou-Litina D

    更新日期:2005-06-01 00:00:00

  • Synthesis of novel galeterone derivatives and evaluation of their in vitro activity against prostate cancer cell lines.

    abstract::Prostate cancer is one of the main causes of male cancer-related deaths worldwide and the suppression of androgen receptor signalling is established as an effective strategy for the treatment. A series of galeterone analogues including several steroid-fused azacycles, as well as 17-(benzimidazol-1-ylimino), 16α-(benzi...

    journal_title:European journal of medicinal chemistry

    pub_type: 杂志文章

    doi:10.1016/j.ejmech.2019.06.040

    authors: Jorda R,Řezníčková E,Kiełczewska U,Maj J,Morzycki JW,Siergiejczyk L,Bazgier V,Berka K,Rárová L,Wojtkielewicz A

    更新日期:2019-10-01 00:00:00

  • Synthesis and biological evaluation of novel structural hybrids of benzofuroxan derivatives and fluoroquinolones.

    abstract::A series of novel hybrids based on benzofuroxan derivatives and fluoroquinolones (4a-d-6a-d) have been synthesized. Unexpectedly, the reactions have resulted in salt products formation during the hydrolysis of benzofuroxans by water molecules being present in the solvent instead of usual substitution products. All the...

    journal_title:European journal of medicinal chemistry

    pub_type: 杂志文章

    doi:10.1016/j.ejmech.2016.03.086

    authors: Chugunova E,Akylbekov N,Bulatova A,Gavrilov N,Voloshina A,Kulik N,Zobov V,Dobrynin A,Syakaev V,Burilov A

    更新日期:2016-06-30 00:00:00

  • Chemical preparation, biological evaluation and 3D-QSAR of ethoxysulfuron derivatives as novel antifungal agents targeting acetohydroxyacid synthase.

    abstract::Accetohydroxyacid synthase (AHAS) is the first enzyme involved in the biosynthetic pathway of branched-chain amino acids. Earlier gene mutation of Candida albicans in a mouse model suggested that this enzyme is a promising target of antifungals. Recent studies have demonstrated that some commercial AHAS-inhibiting sul...

    journal_title:European journal of medicinal chemistry

    pub_type: 杂志文章

    doi:10.1016/j.ejmech.2018.11.005

    authors: Wu RJ,Ren T,Gao JY,Wang L,Yu Q,Yao Z,Song GQ,Ruan WB,Niu CW,Song FH,Zhang LX,Li M,Wang JG

    更新日期:2019-01-15 00:00:00

  • New styryl sulfones as anticancer agents.

    abstract::New styryl sulfone compounds have been synthesized and evaluated for their anti-proliferative activity. Among the compounds synthesized, one compound (7k) has shown 51% tumor growth inhibition in mice implanted with HT-29 human carcinoma at 400 mg kg(-1) orally. ...

    journal_title:European journal of medicinal chemistry

    pub_type: 杂志文章

    doi:10.1016/s0223-5234(03)00144-2

    authors: Vedula MS,Pulipaka AB,Venna C,Chintakunta VK,Jinnapally S,Kattuboina VA,Vallakati RK,Basetti V,Akella V,Rajgopal S,Reka AK,Teepireddy SK,Mamnoor PK,Rajagopalan R,Bulusu G,Khandelwal A,Upreti VV,Mamidi SR

    更新日期:2003-09-01 00:00:00

  • Synthesis and in vitro and in vivo biological evaluation of novel derivatives of flexicaulin A as antiproliferative agents.

    abstract::As our research focuses on anticancer drugs, a series of novel derivatives of flexicaulin A (FA), an ent-kaurene diterpene, condensed with an aromatic ring were synthesized, and their antiproliferative activities against four human cancer cell lines (TE-1, EC109, MCF-7, and MGC-803) were evaluated. The activities of m...

    journal_title:European journal of medicinal chemistry

    pub_type: 杂志文章

    doi:10.1016/j.ejmech.2020.112789

    authors: Huo JF,Hu TX,Dong YL,Zhao JZ,Liu XJ,Li LL,Zhang XY,Li YF,Liu HM,Ke Y,Wang C

    更新日期:2020-12-15 00:00:00

  • Synthesis, characterization and antiamoebic activity of new indole-3-carboxaldehyde thiosemicarbazones and their Pd(II) complexes.

    abstract::In continuation of our research on thiosemicarbazones and their metal complexes as antiamoebic agents, a new series of indole-3-carboxaldehyde thiosemicarbazones (TSC) 1-7 were prepared by condensing indole-3-carboxaldehyde with cycloalkylaminothiocarbonyl hydrazines. Their palladium(II) complexes of the [Pd(TSC)Cl2] ...

    journal_title:European journal of medicinal chemistry

    pub_type: 杂志文章

    doi:10.1016/j.ejmech.2007.02.012

    authors: Husain K,Abid M,Azam A

    更新日期:2007-10-01 00:00:00