Tumor growth inhibitory effect of ADAMTS1 is accompanied by the inhibition of tumor angiogenesis

Masanari Obika, Hiroko Ogawa, Katsuyuki Takahashi, Jiayi Li, Omer Faruk Hatipoglu, Mehmet Zeynel Cilek, Toru Miyoshi, Junko Inagaki, Takashi Ohtsuki, Shozo Kusachi, Yoshifumi Ninomiya, Satoshi Hirohata

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

Angiogenesis plays an important role in tumor progression. Several reports have demonstrated that a disintegrin and metalloproteinase with thrombospondin motifs1 (ADAMTS1) inhibited angiogenesis via multiple mechanisms. The aim of this study was to investigate the effect of ADAMTS1 on endothelial cells in vitro and on tumor growth with regard to angiogenesis in vivo. We examined the effects of the transfection of ADAMTS1 using two constructs, full-length ADAMTS1 (full ADAMTS1) and catalytic domain-deleted ADAMTS1 (delta ADAMTS1). Transfection of both the full ADAMTS1 and delta ADAMTS1 gene constructs demonstrated the secretion of tagged-ADAMTS1 protein into the conditioned medium, so we examined the effects of ADAMTS1-containing conditioned medium on endothelial cells. Both types of conditioned media inhibited endothelial tube formation, and this effect was completely abolished after immunoprecipitation of the secreted protein from the medium. Both types of conditioned media also inhibited endothelial cell migration and proliferation. We then examined the impact of ADAMTS1 on endothelial cell apoptosis. Both conditioned media increased the number of Annexin V-positive endothelial cells and caspase-3 activity and this effect was attenuated when z-vad was added. These results indicated that ADAMTS1 induced endothelial cell apoptosis. We next examined the effects of ADAMTS1 gene transfer into tumor-bearing mice. Both full ADAMTS1 and delta ADAMTS1 significantly inhibited the subcutaneous tumor growth. Collectively, our results demonstrated that ADAMTS1 gene transfer inhibited angiogenesis in vitro and in vivo, likely as a result of the induction of endothelial cell apoptosis by ADAMTS1 that occurs independent of the protease activity.

Original languageEnglish
Pages (from-to)1889-1897
Number of pages9
JournalCancer Science
Volume103
Issue number10
DOIs
Publication statusPublished - Oct 2012

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Thrombospondins
Disintegrins
Metalloproteases
Growth
Neoplasms
Endothelial Cells
Conditioned Culture Medium
Apoptosis
Transfection
Genes
Annexin A5

ASJC Scopus subject areas

  • Cancer Research
  • Oncology

Cite this

Tumor growth inhibitory effect of ADAMTS1 is accompanied by the inhibition of tumor angiogenesis. / Obika, Masanari; Ogawa, Hiroko; Takahashi, Katsuyuki; Li, Jiayi; Hatipoglu, Omer Faruk; Cilek, Mehmet Zeynel; Miyoshi, Toru; Inagaki, Junko; Ohtsuki, Takashi; Kusachi, Shozo; Ninomiya, Yoshifumi; Hirohata, Satoshi.

In: Cancer Science, Vol. 103, No. 10, 10.2012, p. 1889-1897.

Research output: Contribution to journalArticle

Obika, Masanari ; Ogawa, Hiroko ; Takahashi, Katsuyuki ; Li, Jiayi ; Hatipoglu, Omer Faruk ; Cilek, Mehmet Zeynel ; Miyoshi, Toru ; Inagaki, Junko ; Ohtsuki, Takashi ; Kusachi, Shozo ; Ninomiya, Yoshifumi ; Hirohata, Satoshi. / Tumor growth inhibitory effect of ADAMTS1 is accompanied by the inhibition of tumor angiogenesis. In: Cancer Science. 2012 ; Vol. 103, No. 10. pp. 1889-1897.
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