A1 Refereed original research article in a scientific journal
Vimentin Suppresses Inflammation and Tumorigenesis in the Mouse Intestine
Authors: Wang Linglu, Mohanasundaram Ponnuswamy, Lindström Michelle, Asghar Muhammad Naheem, Sultana Giulia, Misiorek Julia O., Jiu Yaming, Chen Hongbo, Chen Zhi, Toivola Diana M., Cheng Fang, Eriksson John E.
Publisher: FRONTIERS MEDIA SA
Publication year: 2022
Journal: Frontiers in cell and developmental biology
Journal name in source: FRONTIERS IN CELL AND DEVELOPMENTAL BIOLOGY
Journal acronym: FRONT CELL DEV BIOL
Article number: 862237
Volume: 10
Number of pages: 13
ISSN: 2296-634X
eISSN: 2296-634X
DOI: https://doi.org/10.3389/fcell.2022.862237
Web address : https://doi.org/10.3389/fcell.2022.862237
Self-archived copy’s web address: https://research.utu.fi/converis/portal/detail/Publication/175279725
Vimentin has been implicated in wound healing, inflammation, and cancer, but its functional contribution to intestinal diseases is poorly understood. To study how vimentin is involved during tissue injury and repair of simple epithelium, we induced colonic epithelial cell damage in the vimentin null (Vim(-/-)) mouse model. Vim(-/-) mice challenged with dextran sodium sulfate (DSS) had worse colitis manifestations than wild-type (WT) mice. Vim(-/-) colons also produced more reactive oxygen and nitrogen species, possibly contributing to the pathogenesis of gut inflammation and tumorigenesis than in WT mice. We subsequently describe that CD11b(+) macrophages served as the mainly cellular source of reactive oxygen species (ROS) production via vimentin-ROS-pSTAT3-interleukin-6 inflammatory pathways. Further, we demonstrated that Vim(-/-) mice did not develop colitis-associated cancer model upon DSS treatment spontaneously but increased tumor numbers and size in the distal colon in the azoxymethane/DSS model comparing with WT mice. Thus, vimentin has a crucial role in protection from colitis induction and tumorigenesis of the colon.
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