Abstract:
:Inflammatory bowel disease (IBD) is an important factor in the induction of colon cancer, but its mechanism is unclear. Colitis and colitis-associated colorectal cancer (CAC) models induced using both dextran sulfate sodium (DSS) and the azoxymethane/DSS protocol were established in wild-type (WT) and CTRP4 transgenic (CTRP4-tg) C57BL6/J mice. Body weight, stool consistency and the presence of blood in the stool were analyzed; tumor quantity, size and histological characteristics were analyzed during the development of CAC. The CTRP4-tg mice exhibited significantly reduced colitis and developed far fewer macroscopic tumors; these tumors were smaller in size, and a majority of the colon tumors in these mice were restricted to the superficial mucosa. Tumors of lower grades were observed in the CTRP4-tg mice. Interleukin-6 was markedly downregulated in the CTRP4-tg mice during CAC tumorigenesis. The phosphorylation of ERK, signal transducer and activator of transcription 3 and Akt in the colon and the proliferation of intestinal epithelial cells were decreased in the CTRP4-tg mice. The injection of recombinant CTRP4 protein significantly reduced the colitis symptoms of the WT mice. CTRP4 plays an important role in inflammation and inflammation-associated colon tumorigenesis, and our research may provide a novel method for the treatment of IBD and CAC.
journal_name
Cell Mol Immunoljournal_title
Cellular & molecular immunologyauthors
Luo Y,Wu X,Ma Z,Tan W,Wang L,Na D,Zhang G,Yin A,Huang H,Xia D,Zhang Y,Shi X,Wang Ldoi
10.1038/cmi.2016.16subject
Has Abstractpub_date
2016-09-01 00:00:00pages
688-99issue
5eissn
1672-7681issn
2042-0226pii
cmi201616journal_volume
13pub_type
杂志文章abstract::While there is mounting evidence that interleukin (IL)-23-IL-17 axis plays a critical role in the pathogenesis of various autoimmune diseases, much remains to be elucidated on how IL-23 is induced in the pathological processes. IL-23 is a heterodimer composed of p19 and p40, the latter being shared with IL-12. We prev...
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