Design of Novel Potent Inhibitors of Human Uridine Phosphorylase-1: Synthesis, Inhibition Studies, Thermodynamics, and in Vitro Influence on 5-Fluorouracil Cytotoxicity
摘要:
Uridine (Urd) is a promising biochemical modulator to reduce host toxicity caused by 5-fluorouracil (5-FU) without impairing its antitumor activity. Elevated doses of Urd are required to achieve a protective effect against 5-FU toxicity, but exogenous administration of Urd is not well-tolerated. Selective inhibitors of human uridine phosphorylase (hUP) have been proposed as a strategy to increase Urd levels. We describe synthesis and characterization of a new class of ligands that inhibit hUP type 1 (hUP1). The design of ligands was based on a possible S(N)1 catalytic mechanism and as mimics of the carbocation in the transition state of hUP1. The kinetic and thermodynamic profiles showed that the ligands here presented are the most potent in vitro hUP1 inhibitors developed to date. In addition, a lead compound improved the antiproliferative effects of 5-FU on colon cancer cells, accompanied by a reduction of in vitro 5-FU cytotoxicity in aggressive SW-620 cancer cells.
USE OF 6-HYDROXY-2-PYRIDONES AND DERIVATIVES THEREOF FOR PREPARING A PHARMACEUTICAL COMPOSITION THAT ACTS BY INHIBITING THE HUMAN URIDINE PHOSPHORYLASE ENZYME
申请人:UNIÃO BRASILEIRA DE EDUCAÇAO E ASSISTÊNCIA-
MANTENEDORA DA PUCRS
公开号:EP3042657A1
公开(公告)日:2016-07-13
The present invention describes the use of at least one compound of formula I or II or pharmaceutically acceptable salts thereof, for preparing a pharmaceutical composition that acts by inhibiting the phosphorylase uridine enzyme. Specifically, the present invention comprises the use of the said compounds for preparing a pharmaceutical composition that acts by inhibiting the human phosphorylase uridine enzyme, which can be optionally used in combination with at least one antineoplastic, wherein said inhibition increases the effectiveness of antineoplastic and decreases the side effects caused by the administration of antineoplastics.
本发明描述了至少一种式 I 或式 II 化合物或其药学上可接受的盐用于制备通过抑制磷酸化酶尿苷酶发挥作用的药物组合物。具体地说,本发明包括使用上述化合物制备一种通过抑制人磷酸化酶尿苷酶而起作用的药物组合物,该组合物可选择与至少一种抗肿瘤药联合使用,其中所述抑制作用可提高抗肿瘤药的疗效并减少服用抗肿瘤药引起的副作用。
Deval, S. D.; Pednekar, S. R.; Samant, S. D., Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 1982, vol. 21, # 11, p. 1056 - 1058
作者:Deval, S. D.、Pednekar, S. R.、Samant, S. D.、Deodhar, K. D.、Nimbkar, A. Y.
DOI:——
日期:——
DEVAL, S. D.;PEDNEKAR, S. R.;SAMANT, S. D.;DEODHAR, K. D.;NIMBKAR, A. Y., INDIAN J. CHEM., 1982, 21, N 11, 1056-1058
作者:DEVAL, S. D.、PEDNEKAR, S. R.、SAMANT, S. D.、DEODHAR, K. D.、NIMBKAR, A. Y.
DOI:——
日期:——
US9700547B2
申请人:——
公开号:US9700547B2
公开(公告)日:2017-07-11
[EN] USE OF 6-HYDROXY-2-PYRIDONES AND DERIVATIVES THEREOF FOR PREPARING A PHARMACEUTICAL COMPOSITION THAT ACTS BY INHIBITING THE HUMAN URIDINE PHOSPHORYLASE ENZYME<br/>[FR] UTILISATION DE 6-HYDROXY-2-PYRIDONES ET DE SES DÉRIVÉS DANS LA PRÉPARATION D'UNE COMPOSITION PHARMACEUTIQUE AGISSANT PAR INHIBITION DE L'ENZYME URIDINE PHOSPHORYLASE HUMAINE<br/>[PT] USO DE 6-HIDROXI-2-PIRIDONAS E SEUS DERIVADOS NA PREPARAÇÃO DE UMA COMPOSIÇÃO FARMACÊUTICA QUE ATUE PELA INIBIÇÃO DA ENZIMA URIDINA FOSFORILASE HUMANA
申请人:UNI O BRASILEIRA DE EDUCAÇ O E ASSIST NCIA MANTENEDORA DA PUCRS
公开号:WO2015031968A1
公开(公告)日:2015-03-12
A presente invenção descreve o uso de pelo menos um composto de fórmula (I) ou (II) ou seus sais farmaceuticamente acetáveis na preparação de uma composição farmacêutica que atue pela inibição da enzima uridina fosforilase. Especificamente, a presente invenção compreende o uso dos referidos compostos na preparação de uma composição farmacêutica que atue pela inibição da enzima uridina fosforilase humana em combinação ou não com pelo menos um antineoplásico, em que a inibição atua no aumento da efetividade dos antineoplásicos e na diminuição dos efeitos colaterais provocados pela administração de antineoplásicos.