Background: Dietary fiber is effective for colorectal cancer (CRC) treatment. Interleukin-6 (IL-6) and its adaptors are potential targets for CRC therapy. Butyrate, a metabolite of dietary fiber, is a new, highly safe type of targeted drug.
Methods: In this study, Cell Counting Kit-8 cell viability and wound healing assays, western blot analysis, immunofluorescence staining, and xenograft tumor mouse models were used to evaluate the anticancer effect of butyrate and its possible mechanism in vivo and in vitro.
Results: Dietary fiber and sodium butyrate (NaB) decreased CRC burden by decreasing IL-6 receptor gp130 and blocking IL-6/JAK2/STAT3 axis activation in vitro and in vivo. Furthermore, NaB reduced the gp130 protein level by regulating its degradation rate via targeting TRAF5.
Conclusions: The fiber metabolite butyrate inhibits CRC development by reducing gp130 via TRAF5.
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|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7271451 | PMC |
| http://dx.doi.org/10.1186/s12935-020-01305-9 | DOI Listing |
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