The pentacyclic triterpene oleanolic acid(OA) with known famesoid X receptor(FXR)modulatory activity was modified at A-ring(C-3) and C-ring(C-12) positions to find new FXR-interacting *** agonist-and antagonist-based ...
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The pentacyclic triterpene oleanolic acid(OA) with known famesoid X receptor(FXR)modulatory activity was modified at A-ring(C-3) and C-ring(C-12) positions to find new FXR-interacting *** agonist-and antagonist-based ligand-FXR binding models were established to assist the design of structural modifications at both sites on A-and *** potent antagonists were found,in addition to a few weak to moderate agonists and compounds with coactivation effects with CDCA,the internal FXR agonist in luciferase-based cell *** vivo PD and PK assessment are in progress.
Three ruthenium(Ⅱ) complexes have been synthesized and characterized with electronic absorption and emission spectra. It's found that these complexes can inhibit the growth of human A549 lung cell ***,these thr...
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Three ruthenium(Ⅱ) complexes have been synthesized and characterized with electronic absorption and emission spectra. It's found that these complexes can inhibit the growth of human A549 lung cell ***,these three complexes exhibited excellent binding affinities with DNA,as confirmed by spectroscopy,viscosity experiments and agarose gel electrophoresis. Therefore,this result show that the synthesized ruthenium(Ⅱ)complexes have excellent DNA-binding abilities and antitumor properties with potential applications in cancer chemotherapy.
Rational structural optimization is a key to tailor the druglike properties of a lead compound and come up with a well-balanced developable candidate.A good draggable chemotype is generally surrounded by a larger numb...
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Rational structural optimization is a key to tailor the druglike properties of a lead compound and come up with a well-balanced developable candidate.A good draggable chemotype is generally surrounded by a larger number of patents,therefore a unique approach is necessary to avoid the reported intellectual property and gain a new patentable *** have used a cyclization strategy to form new ring systems either from the core templates or from the
The "privileged structure"-guided scaffold repositioning is a primary strategy to identify structurally novel chemotypes by modifying the central core structure and the side-chain of the existing active comp...
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The "privileged structure"-guided scaffold repositioning is a primary strategy to identify structurally novel chemotypes by modifying the central core structure and the side-chain of the existing active compounds,or to exploit undescribed bioactivites by making full use of readily derivatized motifs with well-established synthetic ***,we report the discovery of antiviral agents(targeting HTV-1 reverse transcriptase-associated ribonuclease H and integrase) and anti-gout agents via'privileged scaffold' repositioning *** also discuss the basic tricks of exploiting privileged structures for scaffold repositioning.
A series of phenanthroimidazolederivates have been synthesized under microwave irradiationgive yields>90%.Compound 2 exhibit promising activityagainst the growth of HepG2 with the IC of 0.68.μ*** further studies s...
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A series of phenanthroimidazolederivates have been synthesized under microwave irradiationgive yields>90%.Compound 2 exhibit promising activityagainst the growth of HepG2 with the IC of 0.68.μ*** further studies show that 2 can decrease the mitochondrial membrane potential,DNA damage and ***,it's also discovered that 2 can inhibit the formation of neovascularization through zebrafishand tube formation ***,in vivo distribution and metabolism studies show that 2 can rapidly distributed in whole body and accumulated in tumor tissue of balb/c mice.
siRNA has been widely applied in research and drug development due to its sequence-specific gene silencing ***,how to spatiotemporally control its function is still one of its ***,a fast and noninvasive trigger,is a p...
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siRNA has been widely applied in research and drug development due to its sequence-specific gene silencing ***,how to spatiotemporally control its function is still one of its ***,a fast and noninvasive trigger,is a promising tool for spatiotemporal control of gene ***,we designed and synthesized a new series of caged siKNAs modified with single cholesterol at the 5' terminal of antisense strand RNA through a photolabile linker(Chol-PL-siRNAs).We demonstrated that these caged siRNAs were successfully used to photochemically regulate both exogenous(firefly luciferase and GFP)and endogenous gene expression(mitotic kinesin-5,Eg5) in cells.
Sodium-dependent glucose cotransporterl(SGLT1) and glucose transporter(GLUT) are abnormally expressed in colorectal cancer *** of glucose uptake in cancer cells causes the resistance of genotoxic *** suggests that blo...
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Sodium-dependent glucose cotransporterl(SGLT1) and glucose transporter(GLUT) are abnormally expressed in colorectal cancer *** of glucose uptake in cancer cells causes the resistance of genotoxic *** suggests that blocking glucose uptake has the potential to increase the efficacy of anti-cancer *** this study,we focused on the small molecule drug conjugation for colorectal cancer.5-FU is a common requirement for colorectal cancer,through the combination of 5-FU and SGLT1 or GLUT inhibitors via bio-reductive linker,the efficacy of new conjugates were *** study will assess the results of in vitro study before entering animal experiments.
Tetracaine hydrochloride(Fig.1) is a local anesthetic drug widely used in epidural blocks,subarachnoid blocks,nerve conduction blocks,and mucosal surface anesthesia.11"21Through experimentation,we found mat tetra...
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Tetracaine hydrochloride(Fig.1) is a local anesthetic drug widely used in epidural blocks,subarachnoid blocks,nerve conduction blocks,and mucosal surface anesthesia.11"21Through experimentation,we found mat tetracaine hydrochloride could exist in three forms at ambient temperature,denoted forms *** I is the commercial crystal form with a melting point range of 413.15-423.15 *** II was obtained by reciystallization from form I in
Pentacyclic triterpene derivatives possess a variety of biological *** recent works on the anti-influenza virus activities of pentacyclic triterpenes together with published reports lead us to further investigate thei...
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Pentacyclic triterpene derivatives possess a variety of biological *** recent works on the anti-influenza virus activities of pentacyclic triterpenes together with published reports lead us to further investigate their antiviral *** this study,several fluorescent probes based on Rhodamine B and pentacyclic triterpenes were synthesized and *** showed moderate anti-influenza activity with IC50 values of 3.41-14.27 *** antiviral mechanism was carried out by time of addition,hemagglutination inhibition,surface plasmon resonance,flow cytometry and confocal laser microscopy assays.
The S-phase kinase-associated protein 2(Skp2) is overexpressed in prostate cancer and associated with tumour stage,disease recurrence,and worse patient *** also have demonstrated that Skp2 overexpression plays a criti...
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The S-phase kinase-associated protein 2(Skp2) is overexpressed in prostate cancer and associated with tumour stage,disease recurrence,and worse patient *** also have demonstrated that Skp2 overexpression plays a critical role in development and progression of prostate cancer in several prostate cancer models,including PTEN knockout
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