Colonic mucus-accumulating tungsten oxide nanoparticles improve the colitis therapy by targeting Enterobacteriaceae

Yuting Qin, Ruifang Zhao, Hao Qin, Long Chen, Hanqing Chen, Yuliang Zhao, Guangjun Nie

Research output: Contribution to journalArticlepeer-review

Abstract

The imbalance of gut microbiota, such as dysbiotic expansion of Enterobacteriaceae, is strongly associated with the progress of inflammatory bowel disease (IBD) via exacerbating gut inflammation and disturbing intestinal mucosal barrier. Recently, a microbiota-based strategy is an attractive paradigm for IBD therapy. Here, we explored the therapeutic potential of tungsten oxide nanoparticles (WO3NPs) against DSS-induced acute colitis mice. WO3NPs (47.9 nm in diameter) significantly reduced intestinal inflammation, attenuated bacterial translocation, restored the colonic epithelium barriers, and remodeled gut microbiota homeostasis in inflamed colon, compared with the free tungsten (sodium tungstate). The element quantification and mapping results showed WO3NPs could increase the adherence of tungsten with Enterobacteriaceae in colonic mucus layer, which inhibited Enterobacteriaceae growth by microbial metabolic reprogramming and ameliorate colitis. This nano-enabled approach for tungsten reduced its deposition in the main organ except for the colon thereby improve the therapeutic efficacy with good biosafety. Together, our results provide insights into the potential nanotherapeutics of WO3NPs against the invasion processes of microbiota in the treatment of IBD.

Original languageEnglish (US)
Article number101234
JournalNano Today
Volume39
DOIs
StatePublished - Aug 2021

Keywords

  • Bacterial respiration and energy metabolism
  • Colonic mucus targeting
  • Enterobacteriaceae
  • Inflammatory bowel disease
  • Tungsten oxide nanoparticles

ASJC Scopus subject areas

  • Biotechnology
  • Bioengineering
  • Biomedical Engineering
  • Materials Science(all)
  • Pharmaceutical Science

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