Rapid Quantification and Validation of Lipid Concentrations within Liposomes.

Rapid Quantification and Validation of Lipid Concentrations within Liposomes.
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DOI:
10.3390/pharmaceutics8030029
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发表时间:
2016-09-13
期刊:
影响因子:
5.4
通讯作者:
Perrie Y
Perrie Y
中科院分区:
医学2区
文献类型:
--
作者:
Roces CB;Kastner E;Stone P;Lowry D;Perrie Y

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定量亚单位疫苗制剂中脂质体佐剂的脂质含量是极其重要的,因为这种浓度会影响效力和稳定性。在本文中,我们概述了一种高效液相色谱-蒸发光散射检测器(HPLC-ELSD)方法,该方法允许在三种脂质体制造技术(脂膜水合,高剪切混合和微流体)制备的脂质体系统中快速同时定量脂质浓度。ELSD系统用于定量四种脂质:1,2-二肉豆醇-sn-甘油-3-磷脂胆碱(DMPC)、胆固醇、溴化二甲基十二烷基铵(DDA)和d-(+)-海藻糖6,6 ' -二酚酸酯(TDB)。所建立的方法快速、灵敏度高、线性直接、一致性好(四种脂质检测的R2为> 0.993)。相应的检测限(LOD)和定量限(LOQ)分别为0.11和0.36 mg/mL (DMPC)、0.02和0.80 mg/mL(胆固醇)、0.06和0.20 mg/mL (DDA)、0.05和0.16 mg/mL (TDB)。HPLC-ELSD被证明是一种快速有效的方法,用于定量脂质体制剂中的脂质,而不需要脂质提取过程。
Quantification of the lipid content in liposomal adjuvants for subunit vaccine formulation is of extreme importance, since this concentration impacts both efficacy and stability. In this paper, we outline a high performance liquid chromatography-evaporative light scattering detector (HPLC-ELSD) method that allows for the rapid and simultaneous quantification of lipid concentrations within liposomal systems prepared by three liposomal manufacturing techniques (lipid film hydration, high shear mixing, and microfluidics). The ELSD system was used to quantify four lipids: 1,2-dimyristoyl-sn-glycero-3-phosphocholine (DMPC), cholesterol, dimethyldioctadecylammonium (DDA) bromide, and d-(+)-trehalose 6,6′-dibehenate (TDB). The developed method offers rapidity, high sensitivity, direct linearity, and a good consistency on the responses (R2 > 0.993 for the four lipids tested). The corresponding limit of detection (LOD) and limit of quantification (LOQ) were 0.11 and 0.36 mg/mL (DMPC), 0.02 and 0.80 mg/mL (cholesterol), 0.06 and 0.20 mg/mL (DDA), and 0.05 and 0.16 mg/mL (TDB), respectively. HPLC-ELSD was shown to be a rapid and effective method for the quantification of lipids within liposome formulations without the need for lipid extraction processes.
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