Flavone analogs are natural compounds of the flavonoid class that have a wide range of biological activities. The present study aimed to predict, with the aid of in silico methodologies, the oral bioavailability and pharmacokinetic and toxicological analyzes for three flavone analogues (apigenin, chrysin and luteonlin). The study revealed that the analogues have good oral availability, favorable pharmacokinetic and toxicological parameters. The Virtual Screening performed to predict oral bioavailability revealed that all analogues did not violate Lipinski's Rule. The in silico pharmacokinetic study revealed that all analogues have high intestinal absorption, do not cross the blood-brain barrier, are permeable by Caco-2 cells and do not inhibit P-glycoprotein. The in silico ADME study showed that all analogues inhibit the enzymes of the cytochrome P450 complex (CYP4501A2, CYP4502C9, CYP4502C19, CYP4503A4) and not only the CYP4502D6 enzyme. The in silico Toxicology study indicated that the analogues do not show toxicity by the AMES Test and are not carcinogenic. Apigenin and chrysin have low toxicity, while luteolin has moderate toxicity.
Os análogos de flavonas são compostos naturais da classe dos flavonoides que apresentam ampla gama de atividades biológicas. O presente estudo objetivou predizer com auxílio de metodologias in silico a biodisponibilidade oral e análises farmacocinéticas e toxicológicas para três análogos de flavonas (apigenina, crisina e luteolina). O estudo revelou que os análogos apresentam boa disponibilidade oral, parâmetros farmacocinéticos e toxicológicos favoráveis. O Screening Virtual realizado para predição da biodisponibilidade oral revelou que todos os análogos não violaram a Regra de Lipinski. O estudo farmacocinético in silico revelou que todos os análogos possuem elevada absorção intestinal, não atravessam a barreira hematoencefálica, são permeáveis pelas células Caco-2 e não inibem a glicoproteína P. O estudo ADME in silico mostrou que todos os análogos inibem as enzimas do complexo citocromo P450 (CYP4501A2, CYP4502C9, CYP4502C19, CYP4503A4) e que apenas a enzima CYP4502D6 não sofre inibição. O estudo Toxicológico in silico indicou que os análogos não apresentam toxicidade pelo Teste de AMES e não são carcinogênicos. A apigenina e a crisina apresentam baixa toxicidade, enquanto a luteolina possui toxicidade moderada.
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