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Molecular therapy. Methods & clinical development. 2022 Mar 3:25:124-135. doi: 10.1016/j.omtm.2022.03.002 Q24.72025

An etanercept O-glycovariant with enhanced potency

一种效力增强的Etanercept O-糖链变体 翻译改进

Thomas G Biel  1, Talia Faison  1, Alicia M Matthews  1, Guozhang Zou  2, Uriel Ortega-Rodriguez  3, Melissa A Pegues  1, Nicole Azer  1, Fabiola Gomez  1, Sarah Johnson  1, Sarah Rogstad  4, Kang Chen  4, Hang Xie  3, Cyrus Agarabi  1, V Ashutosh Rao  1, Tongzhong Ju  1

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作者单位

  • 1 Office of Biotechnology Products, Office of Pharmaceutical Quality, Center for Drug Evaluation and Research, Food and Drug Administration, Silver Spring, MD 20993, USA.
  • 2 Division of Hematology and Oncology Products, Office of New Drugs, Vaccine Production Program, Vaccine Research Center, NIAID, NIH, Bethesda, MD 20892, USA.
  • 3 Office of Vaccines Research and Review, Center for Biologics Evaluation and Research, Food and Drug Administration, Silver Spring, MD 20993, USA.
  • 4 Office of Testing and Research, Office of Pharmaceutical Quality, Center for Drug Evaluation and Research, Food and Drug Administration, Silver Spring, MD 20993, USA.
  • DOI: 10.1016/j.omtm.2022.03.002 PMID: 35402630

    摘要 中英对照阅读

    Most therapeutic proteins are glycosylated with N-glycans and/or O-glycans. N-glycans on therapeutic proteins have been extensively studied for their control strategy and impact on drug product quality. However, knowledge of O-glycosylation in therapeutic protein production and its impact on product quality remains elusive. To address this gap, we generated an O-glycoengineered Chinese Hamster Ovary (CHO) cell line platform to modulate O-glycosylation of t... ...点击完成人机验证后继续浏览

    大多数治疗性蛋白质都带有N-糖链和/或O-糖链。关于治疗性蛋白质的N-糖链的控制策略及其对药物产品质量的影响已经进行了广泛的研究,然而,在治疗性蛋白质生产过程中O-糖基化的作用以及其对产品品质影响的知识仍然不清楚。为了解决这一缺口,我们生成了一种O-糖工程化的中国仓鼠卵巢(CHO)细胞系平台,用于调节治疗性蛋白质的O-糖基化,并研究了O-糖链对依那西普理化和生物性质的影响。我们的结果表明,这种CHO细胞系平台可以产生含有截短型O-糖链(唾液酸Tn和/或Tn)、单独的唾液酸Core 3、或者与唾液酸Core 1结合的唾液酸Tn或唾液酸Core 3 O-糖链的受控O-糖基化谱图,这些糖链存在于内源性和重组蛋白质上。此外,该平台仅调节O-糖基化而不影响N-糖基化。重要的是,依那西普上的某些O-糖链增强了肿瘤坏死因子-α结合亲和力,并进而提高了其效力。这是首次报道建立一个带有直接证据支持的O-糖工程化的CHO细胞系平台,表明该平台可用于生产具有所需O-糖链的工程化蛋白质。此平台对于使用基于质量设计原则来识别生物治疗产品的关键质量属性中的O-糖基化非常重要。

    关键词:CHO细胞;O-糖链;生物制药;细胞系工程;依那西普;糖基化;治疗性融合蛋白。

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    期刊名:Molecular therapy-methods & clinical development

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    ISSN:N/A

    e-ISSN:2329-0501

    IF/分区:4.7/Q2

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