Department of Dermatology
Cancer Biology | Dermatology | Neoplasms | Skin and Connective Tissue Diseases
Metastasis is the leading cause of cancer death. A tumor-supportive microenvironment, or premetastatic niche, at potential secondary tumor sites plays an important role in metastasis, especially in tumor cell colonization. Although a fibrotic milieu is known to promote tumorigenesis and metastasis, the underlying molecular contributors to this effect have remained unclear. Here we show that periostin, a component of the extracellular matrix that functions in tissue remodeling, has a key role in formation of a fibrotic environment that promotes tumor metastatic colonization. We found that periostin was widely expressed in fibrotic lesions of mice with bleomycin-induced lung fibrosis, and that up-regulation of periostin expression coincided with activation of myofibroblasts positive for alpha-smooth muscle actin. We established a lung metastasis model for B16 murine melanoma cells and showed that metastatic colonization of the lung by these cells was markedly promoted by bleomycin-induced lung fibrosis. Inhibition of periostin expression by giving an intratracheal antisense oligonucleotide targeting periostin mRNA was found to suppress bleomycin-induced lung fibrosis and thereby to attenuate metastatic colonization of the lung by melanoma cells. Our results indicate that periostin is a key player in the development of bleomycin-induced fibrosis and consequent enhancement of tumor cell colonization in the lung. Our results therefore implicate periostin as a potential target for prevention or treatment of lung metastasis.
antisense oligonucleotide, lung fibrosis, melanoma, periostin, premetastatic niche
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© 2018 The Authors. This is an open access article under the terms of the Creative Commons Attribution-NonCommercial License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited and is not used for commercial purposes.
DOI of Published Version
Cancer Sci. 2018 May;109(5):1447-1454. doi: 10.1111/cas.13554. Epub 2018 Mar 31. Link to article on publisher's site
Semba, Takashi; Sugihara, Eiji; Kamoshita, Nagisa; Ueno, Sayaka; Fukuda, Keitaro; Yoshino, Masafumi; Takao, Kazumasa; Yoshikawa, Kazunori; Izuhara, Kenji; Arima, Yoshimi; Suzuki, Makoto; and Saya, Hideyuki, "Periostin antisense oligonucleotide suppresses bleomycin-induced formation of a lung premetastatic niche for melanoma" (2018). Open Access Articles. 3409.
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This work is licensed under a Creative Commons Attribution-Noncommercial 4.0 License