An engineered diatom acting like a plasma cell secreting human IgG antibodies with high efficiency.

An engineered diatom acting like a plasma cell secreting human IgG antibodies with high efficiency.
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工程的硅藻像浆细胞一样起作用,其效率高的人类IgG抗体。

DOI:
10.1186/1475-2859-11-126
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发表时间:
2012-09-13
影响因子:
6.4
通讯作者:
Maier UG
Maier UG
中科院分区:
工程技术2区
文献类型:
--
作者:
Hempel F;Maier UG

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尽管有许多不同的表达系统用于药物蛋白的重组生产,但这些表达系统中的许多都存在缺点,例如产率、成本、纯化的复杂性和可能被人类病原体污染。微藻在各种生物技术应用方面具有巨大潜力,目前在生物燃料领域引起了广泛关注。然而,利用微藻作为太阳能表达系统生产重组蛋白的想法仍然被低估。在这项研究中,我们首次表明,完全组装和功能性的人IgG抗体不仅可以在藻类系统中高水平表达,而且还可以非常有效地分泌到培养基中。我们设计了硅藻三角褐指藻以合成并分泌针对B肝炎病毒表面蛋白的人IgG抗体。由于不知道硅藻三角褐指藻天然分泌许多内源性蛋白质,因此分泌的抗体已经非常纯,使得大量的纯化步骤多余,并且生产成本极低。微藻联合收割机将快速生长速率与真核表达系统的所有优点相结合,并为太阳能、低成本生产药物蛋白提供了巨大的潜力。
Although there are many different expression systems for recombinant production of pharmaceutical proteins, many of these suffer from drawbacks such as yield, cost, complexity of purification, and possible contamination with human pathogens. Microalgae have enormous potential for diverse biotechnological applications and currently attract much attention in the biofuel sector. Still underestimated, though, is the idea of using microalgae as solar-fueled expression system for the production of recombinant proteins. In this study, we show for the first time that completely assembled and functional human IgG antibodies can not only be expressed to high levels in algal systems, but also secreted very efficiently into the culture medium. We engineered the diatom Phaeodactylum tricornutum to synthesize and secrete a human IgG antibody against the Hepatitis B Virus surface protein. As the diatom P. tricornutum is not known to naturally secrete many endogenous proteins, the secreted antibodies are already very pure making extensive purification steps redundant and production extremely cost efficient. Microalgae combine rapid growth rates with all the advantages of eukaryotic expression systems, and offer great potential for solar-powered, low cost production of pharmaceutical proteins.
DOI: 10.1385/mb:34:2:213
发表时间: 2006-10-01
影响因子: 2.6
作者:
Griesbeck, Christoph;Kobl, Iris;Heitzer, Markus
通讯作者: Heitzer, Markus
DOI: 10.1007/10_014
发表时间: 2006-01-01
期刊: CELL CULTURE ENGINEERING
影响因子: --
作者:
Farid, Suzanne S.
通讯作者: Farid, Suzanne S.
DOI: 10.1371/journal.pone.0028424
发表时间: 2011
期刊: PloS one
影响因子: 3.7
作者:
Hempel F;Lau J;Klingl A;Maier UG
通讯作者: Maier UG
DOI: 10.1186/1475-2859-10-81
发表时间: 2011-10-17
影响因子: 6.4
作者:
Hempel F;Bozarth AS;Lindenkamp N;Klingl A;Zauner S;Linne U;Steinbüchel A;Maier UG
通讯作者: Maier UG
DOI: 10.1126/science.281.5374.237
发表时间: 1998-07-10
期刊: SCIENCE
影响因子: 56.9
作者:
Field, CB;Behrenfeld, MJ;Falkowski, P
通讯作者: Falkowski, P