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Fit-for-Purpose LCMS Quantification of a Protein Therapeutics: A Case Study Highlighting Alpha-1 Antitrypsin

机译:适用于蛋白质治疗方法的拟合LCMS定量:一个案例研究突出α-1抗真菌素

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Two fit-for-purpose assays were developed and qualified using surrogate peptide LC-MS/MS analysis to measure human AAT protein concentrations from murine BAL and serum samples Direct sample digestion was found to be an adequate cleanup procedure for less complicated matrices (BAL). Incorporation of an immunoprecipitation step with a commercially available anti-human anti-AAT polyclonal antibody to enrich for AAT in serum samples was necessary for more complicated matrices (serum).
机译:使用替代肽LC-MS / MS / MS分析开发和鉴定了两种适合的测定,以测量来自鼠BAL的人AAT蛋白质浓度,并发现血清样品直接样品消化是一种足够复杂的矩阵(BAL)的充分清洁程序。更复杂的基质(血清)掺入与市售的抗-AN抗AAT多克隆抗体以富含血清样品中AAT的免疫沉淀步骤是必需的。

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