Developments in the production of mucosal antibodies in plants

详细信息    查看全文

• 作者：Nikolay Vasilev^a ; C. Mark Smales^b ; Stefan Schillberg^a ; Rainer Fischer^a ; ^c ; Andreas Schiermeyer^a ; ^{andreas.schiermeyer@ime.fraunhofer.de" class="auth_mail" title="E-mail the corresponding author}
• 关键词：Ara ; arabinose ; CDR ; complementary-determining region ; CHO cells ; Chinese hamster ovary cells ; CMP-Neu5Ac ; cytidine 5&prime ; -monophosphate N-acetylneuraminic acid ; CRISPR/Cas9 ; clustered regularly interspaced short palindromic repeat (CRISPR)/CRISPR-associated protein 9 (Cas9) system ; DC ; dendritic cell ;   ; ∆  ; XT/FT ; a mutant plant line lacking β1 ; 2-xylosyltransferases and α1 ; 3-fucosyltransferases ; dIgA ; dimeric IgA ; ER ; endoplasmic reticulum ; ETEC ; enterotoxigenic Escherichia coli ; Fab&p
• 刊名：Biotechnology Advances
• 出版年：2016
• 出版时间：March-April 2016
• 年：2016
• 卷：34
• 期：2
• 页码：77-87
• 全文大小：980 K

文摘

Recombinant mucosal antibodies represent attractive target molecules for the development of next generation biopharmaceuticals for passive immunization against various infectious diseases and treatment of patients suffering from mucosal antibody deficiencies. As these polymeric antibodies require complex post-translational modifications and correct subunit assembly, they are considered as difficult-to-produce recombinant proteins. Beside the traditional, mammalian-based production platforms, plants are emerging as alternative expression hosts for this type of complex macromolecule. Plant cells are able to produce high-quality mucosal antibodies as shown by the successful expression of the secretory immunoglobulins A (IgA) and M (IgM) in various antibody formats in different plant species including tobacco and its close relative Nicotiana benthamiana, maize, tomato and Arabidopsis thaliana. Importantly for biotherapeutic application, transgenic plants are capable of synthesizing functional IgA and IgM molecules with biological activity and safety profiles comparable with their native mammalian counterparts. This article reviews the structure and function of mucosal IgA and IgM antibodies and summarizes the current knowledge of their production and processing in plant host systems. Specific emphasis is given to consideration of intracellular transport processes as these affect assembly of the mature immunoglobulins, their secretion rates, proteolysis/degradation and glycosylation patterns. Furthermore, this review provides an outline of glycoengineering efforts that have been undertaken so far to produce antibodies with homogenous human-like glycan decoration. We believe that the continued development of our understanding of the plant cellular machinery related to the heterologous expression of immunoglobulins will further improve the production levels, quality and control of post-translational modifications that are ‘human-like’ from plant systems and enhance the prospects for the regulatory approval of such molecules leading to the commercial exploitation of plant-derived mucosal antibodies.