Suppression of thymidine phosphorylase-mediated angiogenesis and tumor growth by 2-deoxy-L-ribose

Hiroshi Uchimiya, Tatsuhiko Furukawa, Masahiro Okamoto, Yuichi Nakajima, Shigeto Matsushita, Ryuji Ikeda, Takenari Gotanda, Misako Haraguchi, Tomoyuki Sumizawa, Mayumi Ono, Michihiko Kuwano, Tamotsu Kanzaki, Shin Ichi Akiyama

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Abstract

Thymidine phosphorylase (TP), an enzyme involved in the reversible conversion of thymidine to thymine, is identical to an angiogenic factor, platelet-derived endothelial cell growth factor (PD-ECGF). Both TP and one of the TP-degradation products of thymidine 2-deoxy-D-ribose (dRib) display endothelial cell chemotactic activity in vitro and angiogenic activity in vivo. Recently, we demonstrated that 2-deoxy-L-ribose (IRib) could abolish the inhibitory effect of dRib on hypoxia-induced apoptosis. This suggested that IRib may be a useful inhibitor of dRib and thereby of TP functions. Therefore, we investigated the ability of IRib to inhibit the range of biological activities of TP and dRib. IRib suppressed both dRib-induced endothelial cell migration in a chemotaxis assay and endothelial tube formation induced by dRib in a collagen gel. IRib could also suppress the biological effects of TP in vivo assays of angiogenesis and tumor growth. Thus, in a corneal assay of angiogenesis, IRib inhibited angiogenesis induced by the implantation of recombinant TP. In a dorsal air sac assay of angiogenesis, IRib inhibited angiogenesis induced by the implantation of KB cells overexpressing TP (KB/TP). In a tumor growth assay, IRib treatment considerably decreased the growth rate of KB/TP cells xenografted into nude mice and also resulted in an increase in the proportion of apoptotic cells in KB/TP tumors. These findings demonstrate that TP and dRib play an Important role in angiogenesis and tumor growth, and that these effects can be inhibited by IRib. Thus, IRib is a potentially useful agent for the suppression of TP-dependent anglogenesis and tumor growth.

Original languageEnglish
Pages (from-to)2834-2839
Number of pages6
JournalCancer Research
Volume62
Issue number10
Publication statusPublished - May 15 2002

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Thymidine Phosphorylase
Ribose
Growth
Neoplasms
KB Cells
Thymidine
Endothelial Cells
Corneal Neovascularization
Air Sacs
Aptitude
Thymine
Angiogenesis Inducing Agents
Chemotaxis

All Science Journal Classification (ASJC) codes

  • Oncology
  • Cancer Research

Cite this

Uchimiya, H., Furukawa, T., Okamoto, M., Nakajima, Y., Matsushita, S., Ikeda, R., ... Akiyama, S. I. (2002). Suppression of thymidine phosphorylase-mediated angiogenesis and tumor growth by 2-deoxy-L-ribose. Cancer Research, 62(10), 2834-2839.

Suppression of thymidine phosphorylase-mediated angiogenesis and tumor growth by 2-deoxy-L-ribose. / Uchimiya, Hiroshi; Furukawa, Tatsuhiko; Okamoto, Masahiro; Nakajima, Yuichi; Matsushita, Shigeto; Ikeda, Ryuji; Gotanda, Takenari; Haraguchi, Misako; Sumizawa, Tomoyuki; Ono, Mayumi; Kuwano, Michihiko; Kanzaki, Tamotsu; Akiyama, Shin Ichi.

In: Cancer Research, Vol. 62, No. 10, 15.05.2002, p. 2834-2839.

Research output: Contribution to journalArticle

Uchimiya, H, Furukawa, T, Okamoto, M, Nakajima, Y, Matsushita, S, Ikeda, R, Gotanda, T, Haraguchi, M, Sumizawa, T, Ono, M, Kuwano, M, Kanzaki, T & Akiyama, SI 2002, 'Suppression of thymidine phosphorylase-mediated angiogenesis and tumor growth by 2-deoxy-L-ribose', Cancer Research, vol. 62, no. 10, pp. 2834-2839.
Uchimiya H, Furukawa T, Okamoto M, Nakajima Y, Matsushita S, Ikeda R et al. Suppression of thymidine phosphorylase-mediated angiogenesis and tumor growth by 2-deoxy-L-ribose. Cancer Research. 2002 May 15;62(10):2834-2839.
Uchimiya, Hiroshi ; Furukawa, Tatsuhiko ; Okamoto, Masahiro ; Nakajima, Yuichi ; Matsushita, Shigeto ; Ikeda, Ryuji ; Gotanda, Takenari ; Haraguchi, Misako ; Sumizawa, Tomoyuki ; Ono, Mayumi ; Kuwano, Michihiko ; Kanzaki, Tamotsu ; Akiyama, Shin Ichi. / Suppression of thymidine phosphorylase-mediated angiogenesis and tumor growth by 2-deoxy-L-ribose. In: Cancer Research. 2002 ; Vol. 62, No. 10. pp. 2834-2839.
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