Abstract:
:Pancreatic cancer is one of the most deadly neoplasm with a 5-year survival rate of less than 6% owing to its remarkable tolerance to nutrient starvation, and new drugs and treatment strategies are urgently needed. During a project aiming at discovery of anticancer agents, we performed a structure modification on polycyclic polyprenylated acylphloroglucinols (PPAPs) skeleton, and discovered that PPAP rearranged to a tetrahydroquinolin-2(1H)-one feature. Here, series of tetrahydroquinolin-2(1H)-one derivatives were designed, synthesized and evaluated against a highly metastatic human pancreatic cancer cell line (PANC-1), and the structure-activity relationship was also discussed. Among them, derivative 11k showed the most potent inhibitory activity with an IC50 value of 4.9 μM under nutrient-deprived condition. In contrast, all these derivatives exhibited low cytotoxicity against PANC-1 cells under normal nutrient condition, suggesting that the derivatives appeared to allow alternative tumor cell death mechanisms, and led to less toxicity. Further evaluations demonstrated that 11k decreased colony formation and induced the apoptosis of PANC-1 under nutrient-deprived condition in a concentration dependent manner. In in vivo study, 11k significantly suppressed the tumor development and weight in nude mice. Preliminary mechanism research revealed that 11k clearly downregulated LC3-II expression and increased the level of p62, two key autophagy markers and critical signals for pancreatic tumor growth and progression. Our current findings demonstrated that 11k might be a promising candidate for the new chemotherapeutic molecule of pancreatic cancer, and deserve further study.
journal_name
Eur J Med Chemjournal_title
European journal of medicinal chemistryauthors
Shen Q,Wang J,Liu CX,Cui W,Zhang L,Zhang YC,Wang Y,Wu J,Li JXdoi
10.1016/j.ejmech.2019.03.013subject
Has Abstractpub_date
2019-05-15 00:00:00pages
28-44eissn
0223-5234issn
1768-3254pii
S0223-5234(19)30224-7journal_volume
170pub_type
杂志文章abstract::Starting from nature as original source, new potential agents with pleiotropic activities have been synthesized and evaluated as neuroprotective agents. In this work, novel nature-based hybrids, combining antioxidant motifs with rivastigmine, have been designed and synthesized. The biological results revealed that the...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2017.10.006
更新日期:2017-12-01 00:00:00
abstract::Intestinal parasites delay mental and physical development in children. Infection with these parasites can result in complications during pregnancy and alter the health of newborns, which has long-term effects on educational attainment and economic productivity. The appearance of resistance against classical drug trea...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章,评审
doi:10.1016/j.ejmech.2017.02.005
更新日期:2017-03-31 00:00:00
abstract::A phytochemical investigation of Inula falconeri, a plant endemic to the Himalayas, afforded 10 new sesquiterpenoids and 26 known sesquiterpene lactones, including those bearing guaiane, pseudoguaiane, xanthane, eudesmane, germacrane, rare secocaryophyllane, chromolaevane, and carabrane frameworks. The structures were...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2011.08.047
更新日期:2011-11-01 00:00:00
abstract::Nucleoside hydrolase (NH) is a key enzyme in the purine salvage pathway. The purine specificity of the IAG-NH from Trypanosoma vivax is at least in part due to cation-pi-stacking interactions. Guanidinium ions can be involved in cation-pi-stacking interactions, therefore a series of guanidino-alkyl-ribitol derivatives...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2007.03.027
更新日期:2008-02-01 00:00:00
abstract::Sodium-dependent glucose co-transporter 2 (SGLT2) inhibitors are the current focus on the indication for the management of hyperglycemia in diabetes. Here, a novel series of C-linked indolylxyloside-based inhibitors of SGLT2 has been discovered. Structure-activity relationship studies revealed that substituents at the...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2012.06.053
更新日期:2012-09-01 00:00:00
abstract::In this study, a collection of N-(6-mercaptohexyl)-3-substituted-1H-pyrazole-5-carboxamide HDAC inhibitors was developed. Among them, 15k was identified as the most potent inhibitor against total HDACs with IC50 of 0.008 μM. Further isoenzyme assays revealed that 15k and its analogs have a preference for HDAC1-3 (clas...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2016.01.013
更新日期:2016-02-15 00:00:00
abstract::The use of nitroreductases (NTR) that catalyze the reduction of nitro compounds by using NAD(P)H in GDEPT (Gene-directed enzyme prodrug therapy) studies which minimize toxicity at healthy cells and increases concentration of drugs at cancer cells is remarkable. Discovery of new prodrug/NTR combinations is necessary to...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2019.03.035
更新日期:2019-06-01 00:00:00
abstract::Two ruthenium(II) polypyridyl complexes [Ru(phen)3](2+) (1) and [Ru(phen)2(bxbg)](2+) (2) (where phen = 1,10 phenanthroline, bxbg = bis(o-xylene)bipyridine glycoluril) have been evaluated for acetylcholinesterase (AChE) and Amyloid-β peptide (Aβ) aggregation inhibition. Complex 2 exhibits higher potency of AChE inhibi...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2014.01.052
更新日期:2014-03-21 00:00:00
abstract::A series of novel thiazolo derivatives were synthesized by initial condensation of methyl 2-(thiazol-2-ylcarbamoyl)acetate with phenyl isothiocyanate and further reactions using different organic reagents. The structures of newly synthesized compounds were confirmed by IR, 1H NMR, EIMS spectral data and elemental anal...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2008.05.004
更新日期:2009-02-01 00:00:00
abstract::A series of N-alkyl 1-aryl-5-(1H-pyrrol-1-yl)-1H-pyrazole-3-carboxamides were synthesized as new ligands of the human recombinant receptor hCB1. n-Alkyl carboxamides brought out different SARs from the branched subgroup. Unsubstituted pyrrole derivatives bearing a tert-alkyl chain at the 3-carboxamide nitrogen showed ...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2010.09.053
更新日期:2010-12-01 00:00:00
abstract::In novel synthetic 28 4-arylamino-6-fluoro quinazoline derivatives, compound 3a displayed the most remarkable inhibitory activities against tumor cells (IC50 values ranging between 0.71 and 2.30 μM) in vitro. Importantly, 3a obviously inhibited the proliferation and metastasis of A549 cells in a zebrafish xenograft mo...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2019.06.015
更新日期:2019-09-15 00:00:00
abstract::A series of 5-(alkyl and aryl)carboxamido benzimidazole derivatives had been designed, synthesized and evaluated for in vitro angiotensin II--AT1 receptor antagonism and in vivo antihypertensive activities. The pharmacological activities were inversely related to the size of alkyl and aryl substituents. It can be sugg...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2007.11.008
更新日期:2008-09-01 00:00:00
abstract::A new series of N-substituted 2-pyrazolines 9a-f, 10a-f, 11a-f, 12a-f and 13a-f were obtained from the cyclocondensation reaction of [(7-chloroquinolin-4-yl)amino]chalcones 8a-f with hydrazine hydrate and its derivatives. Fourteen of the synthesized compounds including the starting chalcones were selected by US Nation...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2017.03.016
更新日期:2017-05-05 00:00:00
abstract::Two thiazolidinedione scaffolds different in the position of the thiazolidinedione ring in the molecule were tested for in vitro cytotoxic activity in a panel of human cancer cell lines namely, prostate cancer cells PC-3, breast carcinoma cells MDA-MB-231, and fibrosarcoma cells HT-1080. Some of the target compounds o...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2017.03.052
更新日期:2017-06-16 00:00:00
abstract::PDT is a well-established therapeutic modality for many types of cancer. Photoluminescent cyclometalated iridium(III) complexes are one of the most commonly used classes of organometallic compounds with potential beneficial applications in bioimaging and as promising anticancer agents. In the present study, three new ...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2019.06.045
更新日期:2019-10-01 00:00:00
abstract::Structural optimization of the prior lead 3 led to the small molecular (D)-leucinamides with potent modulating activity and Notch-sparing selectivity on the proteolytic processing of amyloid-β precursor proteins. The N-(R)-epoxypropyl analog 10c exhibited potent γ-secretase modulation compared to DAPT and showed subst...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2014.04.006
更新日期:2014-05-22 00:00:00
abstract::Molecular hybridization is a ligand based drug design approach is well known recent medicinal chemistry to design anti-parasitic agents. In the present study, we have designed a series of (1-phenyl-9H-pyrido [3,4-b]indol-3-yl) (4-phenylpiperazin-1-yl)methanone derivatives using molecular hybridization approach. Design...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2018.03.022
更新日期:2018-04-25 00:00:00
abstract::A series of fused and non fused 1,2,4-triazoles with (2,4-dichlorophenoxy) moiety are prepared utilizing 3-((2,4-dichlorophenoxy)methyl)-4-amino-4H-1,2,4-triazole-5-thiol (3). The latter on reaction with carboxylic acids, ethylchloroformate, ethylcyanoacetate and sodium nitrite gives five membered fused triazole deriv...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2010.01.030
更新日期:2010-05-01 00:00:00
abstract::InhA, the enoyl acyl carrier protein reductase of Mycobacterium tuberculosis (MTB) is an attractive target for developing novel anti-tubercular agents. Twenty eight 2-(4-oxoquinazolin-3(4H)-yl)acetamide derivatives were synthesized and evaluated for their in vitro MTB InhA inhibition. Compounds were further evaluated ...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2014.09.028
更新日期:2014-10-30 00:00:00
abstract::Most of the benchmark studies on docking-scoring methods reported in the last decade conclude that no single scoring function performs well across different protein targets. In this study a comparison of thirteen commonly used force field and empirical scoring functions as implemented in DOCK, AMMOS, X-Score and FRED ...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2009.12.025
更新日期:2010-06-01 00:00:00
abstract::The superfamily of adenylate-forming enzymes all share a common chemistry. They activate a carboxylate group, on a specific substrate, by catalyzing the formation of a high energy mixed phosphoanhydride-linked nucleoside intermediate. Members of this diverse enzymatic family play key roles in a variety of metabolic pa...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2019.04.045
更新日期:2019-07-15 00:00:00
abstract::A series of 1-(1H-1,2,4-triazol-1-yl)-2-(2,4-difluorophenyl)-3-[(4-substitutedphenyl)-piperazin-1-yl]-propan-2-ols have been designed and synthesized on the basis of the structure-activity relationships and antimycotic mechanism of azole antifungal agents. Their structures were confirmed by elemental analysis, IR, MS ...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2007.01.006
更新日期:2007-09-01 00:00:00
abstract::The aldehyde oxidases (AOXs) are a small sub-family of cytosolic molybdo-flavoenzymes, which are structurally conserved proteins and broadly distributed from plants to animals. AOXs play multiple roles in both physiological and pathological processes and AOX inhibition is of increasing significance in the development ...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章,评审
doi:10.1016/j.ejmech.2019.111948
更新日期:2020-02-01 00:00:00
abstract::Phosphodiesterase (PDE) 7 is a high affinity cAMP-specific PDE whose functional role in T-cells has been the subject of some controversy. Recent findings on tissue distribution, however, support the hypothesis that PDE7 could be a good target for the treatment of airway diseases, T-cell related diseases or central ner...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2007.10.027
更新日期:2008-07-01 00:00:00
abstract::In this preliminary study we report the antiviral screening of triazolo[4,5-g]quinoline derivatives (compounds 1-6). 4,9-Dihydrotriazolo[4,5-g]quinoline-1-oxide (1) stood out as a new, small molecule endowed with a selective, promising activity in cell-based assays against HIV-1wt and clinically relevant NNRTI resista...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2009.08.012
更新日期:2009-12-01 00:00:00
abstract::Tyrosinase is involved in the production of melanin through the hydroxylation of monophenols to o-diphenols. The role of this enzyme was extensively studied in order to identify new therapeutics preventing skin pigmentation and melanoma. In this work we initially identified the 3-(4-benzylpiperidin-1-yl)-1-(1H-indol-3...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2016.10.030
更新日期:2017-01-05 00:00:00
abstract::Discovery of novel antibacterial agents with new structural scaffolds that combat drug-resistant pathogens is an urgent task. Cajaninstilbene acid, which is isolated from pigeonpea leaves, has shown antibacterial activity. In this study, a series of cajaninstilbene acid derivatives were designed and synthesized. The a...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2015.06.008
更新日期:2015-07-15 00:00:00
abstract::Inflammation comprises the reaction of the body to injury, in which a series of changes of the terminal vascular bed, blood, and connective tissue tends to eliminate the injurious agent and to repair the damaged tissue. It is a complex process, which involves the release of diverse regulatory mediators. The current an...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章,评审
doi:10.1016/j.ejmech.2017.12.059
更新日期:2018-06-10 00:00:00
abstract::Synthesis of 12 new 3-aryl/heteroaryl-5,7-dimethyl-1,2,4-triazolo[4,3-c]pyrimidines (3a-l) has been accomplished by the oxidation of pyrimidinylhydrazones (2a-l) of various aryl/heteroaryl aldehydes using 1.1equiv. of iodobenzene diacetate (IBD) in dichloromethane. All the compounds 3a-l tested in vitro for their anti...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2008.06.004
更新日期:2009-05-01 00:00:00
abstract::In silico screening of a collection of 1584 academic compounds identified a small molecule hit for the human adenosine A(2A) receptor (pK(i) = 6.2) containing a novel chromene scaffold (3a). To explore the structure-activity relationships of this new chemical series for adenosine receptors, a focused library of 43 2H-...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2012.05.009
更新日期:2012-08-01 00:00:00