Lactobacillus delivery of bioactive interleukin-22

Autor: Harold Marcotte, Kasper Krogh-Andersen, Yin Lin, Lennart Hammarström
Rok vydání: 2017
Předmět:
Zdroj: Microbial Cell Factories
ISSN: 1475-2859
DOI: 10.1186/s12934-017-0762-1
Popis: Background Interleukin-22 (IL-22) plays a prominent role in epithelial regeneration and dampening of chronic inflammatory responses by protecting intestinal stem cells from immune-mediated tissue damage. IL-22 has a considerable therapeutic potential in graft-versus-host disease (GVHD), which is a frequent and challenging complication following allogeneic stem cell transplantation. The aim of our study was to engineer Lactobacillus for delivery of IL-22 directly to the intestinal mucosa as a new therapeutic strategy for GVHD. Results The secretion and surface anchoring of mouse IL-22 by Lactobacillus paracasei BL23 was demonstrated by Western blot and flow cytometry. Both secreted and anchored mouse IL-22 produced by Lactobacillus was biologically active, as determined by its ability to induce IL-10 secretion in the Colo 205 human colon cancer cell line. Conclusions We have demonstrated the secretion and surface anchoring of bioactive IL-22 by Lactobacillus. Our results suggest that IL-22 expressing lactobacilli may potentially be a useful mucosal therapeutic agent for the treatment of GVHD, provided that chromosomal integration of the IL-22 expression cassettes can be achieved. Electronic supplementary material The online version of this article (doi:10.1186/s12934-017-0762-1) contains supplementary material, which is available to authorized users.
Databáze: OpenAIRE