Abstract:
:Multidrug-resistant Staphylococcus aureus, including MRSA (methicillin-resistant) and VRSA (vancomycin-resistant), causes serious healthcare-associated infections, even sepsis and death. Here, we identified six novel cathelicidins (CATHPb1-6) from Python bivittatu, and CATHPb1 displayed the best in vitro pharmacological and toxicological profile. We further show that CATHPb1 exhibited evident protection in mice MRSA/VRSA infection models, given either 24 h before or 4 h after infection. The protection was all effective through different administration routes, but was blocked by in vivo depletion of monocyte/macrophages or neutrophils. CATHPb1 can rapidly and massively modulate macrophages/monocytes and neutrophils trafficking to the infection site, and potentiate their bactericidal functions. Meanwhile, CATHPb1 remarkably augmented neutrophil-mediated bacteria killing by facilitating neutrophil extracellular traps (NETs) formation and preventing its degradation. Acting through MAPKs and NF-κB pathways, CATHPb1 selectively enhanced the levels of chemokines while reducing the production of pro-inflammatory cytokines without undesirable toxicities. The much improved serum half-life and stabilities confer CATHPb1 an excellent prospect to become a novel therapeutic agent against multidrug-resistant staphylococcal infections.
journal_name
J Med Chemjournal_title
Journal of medicinal chemistryauthors
Cai S,Qiao X,Feng L,Shi N,Wang H,Yang H,Guo Z,Wang M,Chen Y,Wang Y,Yu Hdoi
10.1021/acs.jmedchem.8b00036subject
Has Abstractpub_date
2018-03-08 00:00:00pages
2075-2086issue
5eissn
0022-2623issn
1520-4804journal_volume
61pub_type
杂志文章abstract::DoMCoSAR is a novel approach for statistically determining the docking mode that is consistent with a structure-activity relationship. The approach establishes the binding mode for the compounds in a chemical series with the assumption that all molecules exhibit the same binding mode. It involves three stages. In the ...
journal_title:Journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1021/jm990609e
更新日期:2000-08-10 00:00:00
abstract::The inhibition of chicken liver dihydrofolate reductase by a series of substituted benzylpyrimidines has been investigated. From the inhibition constants a quantitative structure-activity relationship has been formulated. This mathematical model is compared with molecular graphics models constructed from the X-ray cry...
journal_title:Journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1021/jm00155a006
更新日期:1986-05-01 00:00:00
abstract::A series of potent nonpeptide inhibitors of the HIV protease have been identified. Using the structure of compound 3 bound to the HIV protease, bis tertiary amide inhibitor 9 was designed and prepared. Compound 9 was found to be about 17 times more potent than 3, and the structure of the protein-ligand complex of 9 re...
journal_title:Journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1021/jm960092w
更新日期:1996-07-05 00:00:00
abstract::A novel series of C-3 substituted 4,6-dichloroindole-2-carboxylic acids was synthesized to investigate the influence of different hydrogen-bond donor and acceptor groups at this specific position on the affinity to the glycine site of the NMDA receptor. These novel 3-indolylmethyl derivatives with ring-open (amines, s...
journal_title:Journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1021/jm020955n
更新日期:2003-01-02 00:00:00
abstract::Oligonucleotide-based therapeutics have made rapid progress in the clinic for treatment of a variety of disease indications. Unmodified oligonucleotides are polyanionic macromolecules with poor drug-like properties. Over the past two decades, medicinal chemists have identified a number of chemical modification and con...
journal_title:Journal of medicinal chemistry
pub_type: 杂志文章,评审
doi:10.1021/acs.jmedchem.6b00551
更新日期:2016-11-10 00:00:00
abstract::The NS2B/NS3 serine proteases of the Zika and Dengue flaviviruses are attractive targets for the development of antiviral drugs. We report the synthesis and evaluation of a new, proline-based compound class that displays allosteric inhibition of both proteases. The structural features relevant for protease binding and...
journal_title:Journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1021/acs.jmedchem.9b01697
更新日期:2019-12-26 00:00:00
abstract::The extracellular signal-regulated kinases ERK1/2 represent an essential node within the RAS/RAF/MEK/ERK signaling cascade that is commonly activated by oncogenic mutations in BRAF or RAS or by upstream oncogenic signaling. While targeting upstream nodes with RAF and MEK inhibitors has proven effective clinically, res...
journal_title:Journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1021/acs.jmedchem.6b00389
更新日期:2016-06-23 00:00:00
abstract::Nicotinamide N-methyltransferase (NNMT) is a metabolic enzyme that methylates nicotinamide (NAM) using cofactor S-adenosylmethionine (SAM). NNMT overexpression has been linked to diabetes, obesity, and various cancers. In this work, structure-based rational design led to the development of potent and selective alkynyl...
journal_title:Journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1021/acs.jmedchem.9b01238
更新日期:2019-11-14 00:00:00
abstract::A series of 4(6)-(benzyloxy)-2,6(4)-diamino-5-(nitro or nitroso)pyrimidine derivatives and analogues of which 4(6)-benzyloxy groups were replaced with a (2-, 3-, or 4-fluorobenzyl)oxy or (2-, 3-, or 4-pyridylmethyl)oxy group, was synthesized. The abilities of these compounds to inhibit human O6-alkylguanine-DNA alkylt...
journal_title:Journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1021/jm970363i
更新日期:1998-02-12 00:00:00
abstract::As described in the preceding paper (Arvanitis et al. J. Med. Chem. 1999, 42), anilinopyrimidines I were identified as potent antagonists of corticotropin-releasing hormone-1 receptor (CRH1-R, also referred to as corticotropin-releasing factor, CRF1-R). Our next goal was to understand the receptor-bound conformation o...
journal_title:Journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1021/jm980223o
更新日期:1999-03-11 00:00:00
abstract::Since the identification of the dopamine D(4) receptor subtype and speculations about its possible involvement in schizophrenia, much work has been put into development of selective D(4) ligands. These selective ligands may be effective antipsychotics without extrapyramidal side effects. This work describes the synthe...
journal_title:Journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1021/jm031111m
更新日期:2004-06-03 00:00:00
abstract::3',4'-Dihydroxynomifensine, 8-amino-1,2,3,4-tetrahydro-4-(3,4-dihydroxyphenyl)-2-methylisoquinoli ne (1a), is an agonist of dopamine receptors in central and peripheral systems. Since this dopamine receptor agonist bears an asymmetric center at position 4, its synthesis and resolution were undertaken as part of a stud...
journal_title:Journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1021/jm00367a006
更新日期:1984-01-01 00:00:00
abstract::Recently, FXIIa was highlighted as an original attractive target for the development of new anticoagulant drugs with low rates of therapy-related hemorrhages. In this work, we describe the development of a new series of 3-carboxamide-coumarins that are the first potent and selective nonpeptidic inhibitors of FXIIa. ...
journal_title:Journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1021/jm8002697
更新日期:2008-06-12 00:00:00
abstract::We previously have reported four possible binding conformation of dynorphin A (Dyn A) for the central kappa opioid receptors, induced by the address sequence, using a molecular mechanics energy minimization approach. The lowest energy conformation was found to exhibit an alpha-helical conformation in the cyclized addr...
journal_title:Journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1021/jm950369c
更新日期:1996-03-01 00:00:00
abstract::A series of dithiocarbamates were prepared by reaction of primary/secondary amines with carbon disulfide in the presence of bases. These compounds were tested for the inhibition of four human (h) isoforms of the zinc enzyme carbonic anhydrase, CA (EC 4.2.1.1), hCA I, II, IX, and XII, involved in pathologies such as gl...
journal_title:Journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1021/jm300031j
更新日期:2012-02-23 00:00:00
abstract::A series of analogues of Pro-Leu-Gly-NH2 (PLG) in which the leucine residue has been replaced with the aliphatic amino acids L-isoleucine, L-2-aminohexanoic acid (Ahx), L-2-aminopentanoic acid, and L-2-aminobutanoic acid and the aromatic amino acids L-phenylalanine, L-phenylglycine, L- and D-2-amino-4-phenylbutanoic a...
journal_title:Journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1021/jm00168a045
更新日期:1990-06-01 00:00:00
abstract::Both in vitro and in vivo metabolism studies suggested that 5-(2,8-bis(trifluoromethyl)quinolin-4-yloxymethyl)isoxazole-3-carboxylic acid ethyl ester (compound 3) with previously reported antituberculosis activity is rapidly converted to two metabolites 3a and 3b. In order to improve the metabolic stability of this se...
journal_title:Journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1021/jm900340a
更新日期:2009-11-26 00:00:00
abstract::We have previously shown [Cys-Trp-Arg-Nva-Arg-Tyr-NH(2)](2), 1, to be a moderately selective neuropeptide Y (NPY) Y(4) receptor agonist. Toward improving the selectivity and potency for Y(4) receptors, we studied the effects of dimerizing H-Trp-Arg-Nva-Arg-Tyr-NH(2) using various diamino-dicarboxylic acids containing ...
journal_title:Journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1021/jm050907d
更新日期:2006-04-20 00:00:00
abstract::Twelve 1,4-naphthoquinones have been tested against the ascitic form of sarcoma 180 in Swiss mice. Statistical analysis shows that the most important molecular parameter determining their effectiveness in prolonging the life of mice bearing this tumor is their redox potentials. Although the toxicities of the compounds...
journal_title:Journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1021/jm00358a021
更新日期:1983-04-01 00:00:00
abstract::cis-4-Hydroperoxycyclophosphamide (5) undergoes facile reaction with aqueous phosphate or Tris buffers at pH 7-8 and 30 degrees C. The kinetics of 5 are complex, and the trans-4-hydroperoxy isomer 6 is produced and subsequently disappears over the course of the reaction. Addition of hydrogen peroxide to the reaction m...
journal_title:Journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1021/jm00370a009
更新日期:1984-04-01 00:00:00
abstract::A large number of methods are available for modeling quantitative structure-activity relationships (QSAR). We examine the predictive accuracy of several methods applied to data sets of inhibitors for angiotensin converting enzyme, acetylcholinesterase, benzodiazepine receptor, cyclooxygenase-2, dihydrofolate reductase...
journal_title:Journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1021/jm0497141
更新日期:2004-10-21 00:00:00
abstract::P2X receptor activation protects in heart failure models. MRS2339 3, a 2-chloro-AMP derivative containing a (N)-methanocarba (bicyclo[3.1.0]hexane) system, activates this cardioprotective channel. Michaelis-Arbuzov and Wittig reactions provided phosphonate analogues of 3, expected to be stable in vivo due to the C-P b...
journal_title:Journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1021/jm9018542
更新日期:2010-03-25 00:00:00
abstract::N-(5,5-Diacetoxypent-1-yl)doxorubicin (1b) is an intensely cytotoxic doxorubicin analogue that retains full potency against tumor cells that express elevated levels of P-glycoprotein and are resistant to doxorubicin. 1b was designed to be hydrolyzed in the presence of carboxylate esterases to N-(5-oxypent-1-yl)doxorub...
journal_title:Journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1021/jm9706980
更新日期:1998-03-12 00:00:00
abstract::Seven 3-alkyl-4-aryl-1,5-dihydro-2H-pyrrol-2-ones were prepared as potential inhibitors of cardiac cAMP phosphodiesterase (PDE). The design of these compounds made use of rolipram, a known inhibitor of the brain cAMP PDE isozyme, as a lead structure and was guided by a model which describes the features required for p...
journal_title:Journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1021/jm00060a012
更新日期:1993-04-16 00:00:00
abstract::A molecular model of the alpha3beta2 nAChR lumen channel was constructed and hydrophobic clefts were observed near the receptor gate. Docking simulations indicated that ligand-nAChR complexes were formed by hydrophobic interactions with the cleft and hydrogen bond interactions. The equilibrium constants and associatio...
journal_title:Journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1021/jm070784s
更新日期:2007-11-29 00:00:00
abstract::A number of fluorenyl and diphenylmethane analogues of verapamil, chosen as having the same substituents arranged in different ways around the quaternary carbon, were synthesized in order to evaluate the importance of the stereoisomerism at that point of the molecule. The compounds were tested with the Langendorff tec...
journal_title:Journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1021/jm00149a014
更新日期:1985-11-01 00:00:00
abstract::The synthesis is described of a series of analogues of the potent thymidylate synthase (TS) inhibitor, N-[4-[N-[(3,4-dihydro-2, 7-dimethyl-4-oxo-6-quinazolinyl)methyl]-N-prop-2-ynylamino]-2-f luorob enzoyl]-L-glutamic acid (4, ZM214888), in which the glutamic acid moiety is replaced by homologous amino acids and alpha...
journal_title:Journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1021/jm9803727
更新日期:1999-09-23 00:00:00
abstract::Pyrrolobenzoxazepinone (PBO) derivatives represent a new class of human immunodeficiency virus type 1 (HIV-1) non-nucleoside reverse transcriptase (RT) inhibitors (NNRTs) whose prototype is (+/-)-6-ethyl-6-phenylpyrrolo[2,1-d][1,5]benzoxazepin-7(6H)- one (6). Docking studies based on the three-dimensional structure of...
journal_title:Journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1021/jm990150o
更新日期:1999-10-21 00:00:00
abstract::A series of new nitrogen-carbon-linked (azolylphenyl)oxazolidinone antibacterial agents has been prepared in an effort to expand the spectrum of activity of this class of antibiotics to include Gram-negative organisms. Pyrrole, pyrazole, imidazole, triazole, and tetrazole moieties have been used to replace the morphol...
journal_title:Journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1021/jm990373e
更新日期:2000-03-09 00:00:00
abstract::Pseudomonas aeruginosa is a causative agent of chronic infections in immunocompromised patients. Disruption of quorum sensing circuits is an attractive strategy for treating diseases associated with P. aeruginosa infection. In this study, we designed and synthesized a series of gingerol analogs targeting LasR, a maste...
journal_title:Journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1021/acs.jmedchem.7b01426
更新日期:2017-12-14 00:00:00