PMID- 30517646 OWN - NLM STAT- MEDLINE DCOM- 20200214 LR - 20200214 IS - 1536-4844 (Electronic) IS - 1078-0998 (Linking) VI - 25 IP - 4 DP - 2019 Mar 14 TI - Tenascin-C Produced by Intestinal Myofibroblasts Promotes Colitis-associated Cancer Development Through Angiogenesis. PG - 732-741 LID - 10.1093/ibd/izy368 [doi] AB - BACKGROUND: Colitis-associated cancer (CAC) is one of the prognostic factors in inflammatory bowel disease (IBD), and prevention of CAC is a critical concern for patients with IBD. Component cells of the microenvironment, especially myofibroblasts, are known to affect tumor development, but the role of intestinal myofibroblasts (IMFs) in CAC has not been clarified. Here, we explored the role of IMFs in CAC and sought to identify candidate genes as novel therapeutic targets for the prevention of CAC. METHODS: We used the azoxymethane (AOM)/dextran sodium sulfate (DSS) model for dysplasia and CAC. Flow cytometry and RNA sequencing (RNA-seq) were performed to obtain an unbiased gene expression profile of IMFs. The transcriptome of significantly differentially expressed genes was analyzed by RNA-seq, quantitative reverse transcriptase polymerase chain reaction, and immunohistochemistry. RESULTS: Comparison of normal intestinal fibroblasts and IMFs revealed 1045 genes with significantly differential expression. Among them, we focused on tenascin-C (TNC; q = 0.00232, Log2(Fold Change) = 3.87). Tenascin-C gene expression was markedly increased in the dysplasia model compared with control and CAC model (P < 0.05). Tenascin-C protein was barely expressed in normal and nondysplastic mucosa but strongly expressed in the stroma around dysplastic lesions. Moreover, TNC surrounded and enclosed integrin alphavbeta3-positive microvessels. Administration of ATN-161, an antagonist of alphavbeta3-integrin, significantly suppressed tumorigenesis of CAC through inhibition of angiogenesis (P < 0.05). CONCLUSIONS: In the early stages of CAC, TNC produced by IMFs affects tumor development via integrin alphavbeta3-mediated angiogenesis. Intestinal myofibroblasts might be a novel therapeutic target for preventing CAC. CI - (c) 2018 Crohn's & Colitis Foundation. Published by Oxford University Press. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com. FAU - Kawamura, Takafumi AU - Kawamura T AD - Second Department of Surgery, Hamamatsu University School of Medicine, Hamamatsu, Japan. FAU - Yamamoto, Masayoshi AU - Yamamoto M AD - Second Department of Surgery, Hamamatsu University School of Medicine, Hamamatsu, Japan. FAU - Suzuki, Katsunori AU - Suzuki K AD - Second Department of Surgery, Hamamatsu University School of Medicine, Hamamatsu, Japan. FAU - Suzuki, Yuhi AU - Suzuki Y AD - Second Department of Surgery, Hamamatsu University School of Medicine, Hamamatsu, Japan. FAU - Kamishima, Megumu AU - Kamishima M AD - Second Department of Surgery, Hamamatsu University School of Medicine, Hamamatsu, Japan. FAU - Sakata, Mayu AU - Sakata M AD - Second Department of Surgery, Hamamatsu University School of Medicine, Hamamatsu, Japan. FAU - Kurachi, Kiyotaka AU - Kurachi K AD - Second Department of Surgery, Hamamatsu University School of Medicine, Hamamatsu, Japan. FAU - Setoh, Mitsutoshi AU - Setoh M AD - Department of Cellular and Molecular Anatomy, International Mass Imaging Center, Hamamatsu University School of Medicine, Hamamatsu, Japan. FAU - Konno, Hiroyuki AU - Konno H AD - Second Department of Surgery, Hamamatsu University School of Medicine, Hamamatsu, Japan. FAU - Takeuchi, Hiroya AU - Takeuchi H AD - Second Department of Surgery, Hamamatsu University School of Medicine, Hamamatsu, Japan. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - England TA - Inflamm Bowel Dis JT - Inflammatory bowel diseases JID - 9508162 RN - 0 (Tenascin) RN - 0 (Tnc protein, mouse) RN - 9042-14-2 (Dextran Sulfate) RN - MO0N1J0SEN (Azoxymethane) SB - IM MH - Animals MH - Azoxymethane/toxicity MH - Cell Transformation, Neoplastic/metabolism/*pathology MH - Colitis/chemically induced/*complications/metabolism MH - Colonic Neoplasms/blood supply/etiology/metabolism/*pathology MH - Dextran Sulfate/toxicity MH - Gene Expression Profiling MH - Intestinal Mucosa/*metabolism/pathology MH - Mice MH - Mice, Inbred C57BL MH - Myofibroblasts/*metabolism/pathology MH - Neovascularization, Pathologic/etiology/metabolism/*pathology MH - Tenascin/genetics/*metabolism OTO - NOTNLM OT - ATN-161 OT - angiogenesis OT - colitis-associated cancer OT - intestinal myofibroblasts OT - tenascin-C EDAT- 2018/12/06 06:00 MHDA- 2020/02/15 06:00 CRDT- 2018/12/06 06:00 PHST- 2018/09/05 00:00 [received] PHST- 2018/12/06 06:00 [pubmed] PHST- 2020/02/15 06:00 [medline] PHST- 2018/12/06 06:00 [entrez] AID - 5230928 [pii] AID - 10.1093/ibd/izy368 [doi] PST - ppublish SO - Inflamm Bowel Dis. 2019 Mar 14;25(4):732-741. doi: 10.1093/ibd/izy368.