![]() Is thrombin generation the new rapid, reliable and relevant pharmacological tool for the development of anticoagulant drugs?; ; Pirotte, Bernard et alConference (2009, November) Detailed reference viewed: 13 (1 ULg) Is thrombin generation the new rapid, reliable and relevant pharmacological tool for the development of anticoagulant drugs ?; ; Pirotte, Bernard et alin Pharmacological Research (2009), 59 Detailed reference viewed: 10 (2 ULg) 6-Substituted 2-Oxo-2h-1-Benzopyran-3-Carboxylic Acid Derivatives in a New Approach of the Treatment of Cancer Cell Invasion and Metastasis; Hemmer, Marc ; Counerotte, Stéphane et alin European Journal of Medicinal Chemistry (2008), 43(12), 2735-50 Novel 6-substituted 2-oxo-2H-1-benzopyran-3-carboxylic acid derivatives were synthesized and their potency in reducing the invasive behaviour of HT 1080 fibrosarcoma cells was evaluated. Structure ... [more ▼] Novel 6-substituted 2-oxo-2H-1-benzopyran-3-carboxylic acid derivatives were synthesized and their potency in reducing the invasive behaviour of HT 1080 fibrosarcoma cells was evaluated. Structure-activity relationships were deduced from biological results and will be used in further design of new active compounds. In particular, the acetoxymethyl substituent found at the 6-position of previously described active compounds can be replaced by an acetamidomethyl substituent without loss of potency; while the presence of an aryl ester function at the 3-position was preferred to a thioester or an amide function to induce marked biological activity. This work confirms the interest of aryl esters of 6-substituted coumarin-3-carboxylic acids as potential new anti-cancer agents. [less ▲] Detailed reference viewed: 85 (23 ULg) Synthesis and pharmacological evaluation of a new targeted drug carrier system: β-Cyclodextrin coupled to oxytocin; ; Evrard, Brigitte et alin Bioorganic & Medicinal Chemistry Letters (2008), 18 β-Cyclodextrin (β-CD) was monofunctionalized into its carboxylic derivative and then conjugated to the N-side of oxytocin (OT), a nonapeptide involved in human behavior and myometrium contraction. On ... [more ▼] β-Cyclodextrin (β-CD) was monofunctionalized into its carboxylic derivative and then conjugated to the N-side of oxytocin (OT), a nonapeptide involved in human behavior and myometrium contraction. On isolated rat myometrium, this conjugate (β-CD-OT) partly preserves the contracting activity of OT (EC50 = 0.40 μM vs 1.7 nM). Moreover, the contraction induced frequency is also lowered by β-CD-OT. This novel hydrophilic targeted carrier could form a host–guest complex with prostaglandins and their derivatives used as labor inducers or with anticancer drugs used in cervix and endometrial cancer. This strategy can improve the solubility, the stability, and/or the biological activity of these drugs as well as reducing their side-effects. [less ▲] Detailed reference viewed: 9 (1 ULg)![]() Thrombin activity profile: a rapid, reliable and relevant ex vivo screening test for the development of anticoagulant drugs; ; Pirotte, Bernard et alConference (2007, October) Detailed reference viewed: 5 (0 ULg)![]() Thrombin activity profile : a powerful ex vivo screening test for the development of anticoagulant drugs; ; Pirotte, Bernard et alPoster (2007, July) Detailed reference viewed: 7 (0 ULg)![]() Le profil d’activité de thrombine: un puissant test de criblage ex vivo pour le développement d’agents anticoagulants; ; Pirotte, Bernard et alPoster (2007, May) Detailed reference viewed: 5 (1 ULg) 3,6-Disubstitued coumarins as mechanism-based inhibitors of thrombin and factor Xa; ; et al in Journal of Medicinal Chemistry (2005), 48 Detailed reference viewed: 9 (4 ULg)![]() Conception, synthèse et évaluation biologique d’amino et de guanidino-coumarines inhibiteurs potentiels de thrombine; ; Pirotte, Bernard et alPoster (2003, May) Detailed reference viewed: 5 (0 ULg)![]() Synthèse et évaluation biologique de nouvelles coumarines en tant qu’anticoagulants potentiels; ; et al Poster (2003, May) Detailed reference viewed: 15 (0 ULg) 3-Bromophenyl 6-acetoxymethyl-2-oxo-2H-1-benzopyran-3-carboxylate inhibits cancer cell invasion in vitro and tumour growth in vivo; ; et al in British Journal of Cancer (2003), 88(7), 1111-1118 In search for new anticancer agents, we have evaluated the antiinvasive and antimigrative properties of recently developed synthetic coumarin derivatives among which two compounds revealed important ... [more ▼] In search for new anticancer agents, we have evaluated the antiinvasive and antimigrative properties of recently developed synthetic coumarin derivatives among which two compounds revealed important activity: 3-chlorophenyl 6-acetoxymethyl-2-oxo-2H-1-benzopyran-3-carboxylate and 3-bromophenyl 6-acetoxymethyl-2-oxo-2H-1-benzopyran-3-carboxylate, Both drugs were able to inhibit cell invasion markedly in a Boyden chamber assay, the bromo derivative being more potent than the reference matrix metalloprotease (MMP) inhibitor GI 129471. In vivo, tumour growth was reduced when nude mice grafted with HT 1080 or MDA-MB231 cells were treated i.p. 3 days week(-1) with the bromo coumarin derivative. These effects were not associated with the inhibition of urokinase, plasmin, MMP-2 or MMP-9. The mechanism of action of the drugs remains to be elucidated. However, these two coumarin derivatives may serve as new lead compounds of an original class of antitumour agents. [less ▲] Detailed reference viewed: 26 (7 ULg) Investigation of the inhibition mechanism of coumarins on chymotrypsin by mass spectrometry; ; et al in Tetrahedron (2003) Detailed reference viewed: 12 (0 ULg)![]() Design et synthèse de nouveaux dérivés coumariniques inhibiteurs de thrombine; ; Pirotte, Bernard et alPoster (2002, May 31) Detailed reference viewed: 3 (1 ULg) Structural approach of the mechanism of inhibition of -chymotrypsin by coumarins; ; et al in Bioorganic & Medicinal Chemistry Letters (2002), 12 Detailed reference viewed: 5 (1 ULg)![]() Effects on in vitro and in vivo cellular invasion of two 6-(acetoxymethyl)-2-oxo-2H-1-benzopyran-3-carboxylic acid derivatives; ; et al Poster (2001, October 16) Detailed reference viewed: 2 (0 ULg)![]() Inhibition of thrombin by oxobenzopyran derivatives: structure-activity relationships; ; et al Poster (2001, July) Detailed reference viewed: 6 (0 ULg)![]() Comparaison de l’effet de deux dérivés de l’acide 6-(acetoxymethyl)-2-oxo-2H-1-benzopyrane-3-carboxylique sur l’inhibition de l’invasion cellulaire in vitro et in vivo; ; et al Poster (2001, June 01) Detailed reference viewed: 2 (0 ULg)![]() Synthèse et évaluation enzymatique de nouvelles coumarines en tant qu’inhibiteurs de thrombine; ; Pirotte, Bernard et alPoster (2001, June 01) Detailed reference viewed: 5 (0 ULg)![]() Effects on cellular invasion of two synthetic coumarins; ; et al Conference (2001, May) Detailed reference viewed: 6 (1 ULg)![]() Effects on cellular invasion of 6-(acetoxymethyl)-2-oxo-2H-1-benzopyran-3-carboxylic acid derivatives; ; et al Poster (2001, April 21) Detailed reference viewed: 4 (0 ULg) |
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