de Souza Teixeira Leonardo, Vila Chagas Tatiana, Alonso Antonio, Gonzalez-Alvarez Isabel, Bermejo Marival, Polli James, Rezende Kênnia Rocha
Institute of Pharmaceutical Sciences, Goiânia, Goiás 74175-100, Brazil.
Laboratory of Biopharmacy and Pharmacokinetics (BioPK), Faculty of Pharmacy, Federal University of Goiás, Goiânia, Goiás 74175-100, Brazil.
Pharmaceutics. 2020 Oct 19;12(10):988. doi: 10.3390/pharmaceutics12100988.
A major parameter controlling the extent and rate of oral drug absorption is permeability through the lipid bilayer of intestinal epithelial cells. Here, a biomimetic artificial membrane permeability assay (Franz-PAMPA Pampa) was validated using a Franz cells apparatus. Both high and low permeability drugs (metoprolol and mannitol, respectively) were used as external standards. Biomimetic properties of Franz-PAMPA were also characterized by electron paramagnetic resonance spectroscopy (EPR). Moreover, the permeation profile for eight Biopharmaceutic Classification System (BCS) model drugs cited in the FDA guidance and another six drugs (acyclovir, cimetidine, diclofenac, ibuprofen, piroxicam, and trimethoprim) were measured across Franz-PAMPA. Apparent permeability (Papp) Franz-PAMPA values were correlated with fraction of dose absorbed in humans (Fa%) from the literature. Papp in Caco-2 cells and Corti artificial membrane were likewise compared to Fa% to assess Franz-PAMPA performance. Mannitol and metoprolol Papp values across Franz-PAMPA were lower (3.20 × 10 and 1.61 × 10 cm/s, respectively) than those obtained across non-impregnated membrane (2.27 × 10 and 2.55 × 10 cm/s, respectively), confirming lipidic barrier resistivity. Performance of the Franz cell permeation apparatus using an artificial membrane showed acceptable log-linear correlation (R = 0.664) with Fa%, as seen for Papp in Caco-2 cells (R = 0.805). Data support the validation of the Franz-PAMPA method for use during the drug discovery process.
控制口服药物吸收程度和速率的一个主要参数是通过肠上皮细胞脂质双层的通透性。在此,使用弗兰兹细胞装置对一种仿生人工膜通透性测定法(弗兰兹 - 平行人工膜渗透分析法,Franz-PAMPA)进行了验证。分别使用高通透性和低通透性药物(美托洛尔和甘露醇)作为外部标准。还通过电子顺磁共振波谱(EPR)对弗兰兹 - PAMPA的仿生特性进行了表征。此外,测定了美国食品药品监督管理局(FDA)指南中引用的8种生物药剂学分类系统(BCS)模型药物以及另外6种药物(阿昔洛韦、西咪替丁、双氯芬酸、布洛芬、吡罗昔康和甲氧苄啶)在弗兰兹 - PAMPA上的渗透曲线。弗兰兹 - PAMPA的表观通透性(Papp)值与文献中人体吸收剂量分数(Fa%)相关。同样将Caco-2细胞和科尔蒂人工膜中的Papp与Fa%进行比较,以评估弗兰兹 - PAMPA的性能。甘露醇和美托洛尔在弗兰兹 - PAMPA上的Papp值(分别为3.20×10和1.61×10 cm/s)低于在未浸渍膜上获得的值(分别为2.27×10和2.55×10 cm/s),证实了脂质屏障的阻力。使用人工膜的弗兰兹细胞渗透装置的性能与Fa%显示出可接受的对数线性相关性(R = 0.664),Caco-2细胞中的Papp也是如此(R = 0.805)。数据支持弗兰兹 - PAMPA方法在药物发现过程中应用的验证。