Abstract:
BACKGROUND:Sonic hedgehog (SHH) signaling is related to the pathogenesis of oral squamous cell carcinoma (OSCC), but its role in OSCC is not yet well understood. In this study, we analyzed the role of SHH signaling in OSCC. MATERIALS AND METHODS:We examined the expression pattern of SHH and its signal proteins in clinically resected OSCC samples by immunohistochemistry. We also evaluated the function of SHH signaling using the hedgehog signaling inhibitor cyclopamine in vivo and in vitro by proliferation, migration and angiogenesis analyses. RESULTS:We found that SHH was highly expressed in human tongue OSCC, whereas patched (PTCH1), glioma-associated oncogene 1 (GLI1) and GLI2 proteins were expressed in the microvascular cells in the tumor invasive front. Administration of cyclopamine to mice suppressed the growth and angiogenesis of OSCC xenografts in vivo. Moreover, cyclopamine inhibited endothelial cell proliferation and migration, and reduced aorta vascular length in the rat. CONCLUSION:These findings suggest that OSCC-derived SHH stimulates angiogenesis at the tumor invasive front.
journal_name
Anticancer Resjournal_title
Anticancer researchauthors
Kuroda H,Kurio N,Shimo T,Matsumoto K,Masui M,Takabatake K,Okui T,Ibaragi S,Kunisada Y,Obata K,Yoshioka N,Kishimoto K,Nagatsuka H,Sasaki Adoi
10.21873/anticanres.12132subject
Has Abstractpub_date
2017-12-01 00:00:00pages
6731-6737issue
12eissn
0250-7005issn
1791-7530pii
37/12/6731journal_volume
37pub_type
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