Eggenreich B, Scholz E, Wurm DJ, Forster F, Spadiut O. The production of a recombinant tandem single chain fragment variable capable of binding prolamins triggering celiac disease.
BMC Biotechnol 2018;
18:30. [PMID:
29843684 PMCID:
PMC5975707 DOI:
10.1186/s12896-018-0443-0]
[Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2017] [Accepted: 05/09/2018] [Indexed: 12/13/2022] Open
Abstract
Background
Celiac disease (CD) is one of the most common food-related chronic disorders. It is mediated by the dietary consumption of prolamins, which are storage proteins of different grains. So far, no therapy exists and patients are bound to maintain a lifelong diet to avoid symptoms and long-term complications. To support those patients we developed a tandem single chain Fragment variable (tscFv) acting as a neutralizing agent against prolamins. We recombinantly produced this molecule in E. coli, but mainly obtained misfolded product aggregates, so-called inclusion bodies, independent of the cultivation strategy we applied.
Results
In this study, we introduce this novel tscFv against CD and present our strategy of obtaining active product from inclusion bodies. The refolded tscFv shows binding capabilities towards all tested CD-triggering grains. Compared to a standard polyclonal anti-PT-gliadin-IgY, the tscFv displays a slightly reduced affinity towards digested gliadin, but an additional affinity towards prolamins of barley.
Conclusion
The high binding specificity of tscFv towards prolamin-containing grains makes this novel molecule a valuable candidate to support patients suffering from CD in the future.
Electronic supplementary material
The online version of this article (10.1186/s12896-018-0443-0) contains supplementary material, which is available to authorized users.
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