Digestive Diseases and Sciences

, Volume 54, Issue 5, pp 1108–1114

The Simultaneous Expression of Peroxisome Proliferator-Activated Receptor Delta and Cyclooxygenase-2 May Enhance Angiogenesis and Tumor Venous Invasion in Tissues of Colorectal Cancers

  • Masahiro Yoshinaga
  • Yosuke Kitamura
  • Tomohito Chaen
  • Shinsaku Yamashita
  • Satoru Tsuruta
  • Teruaki Hisano
  • Yoichi Ikeda
  • Hironori Sakai
  • Kazuhiko Nakamura
  • Ryoichi Takayanagi
  • Yoichi Muto
ORIGINAL ARTICLE

DOI: 10.1007/s10620-008-0465-x

Cite this article as:
Yoshinaga, M., Kitamura, Y., Chaen, T. et al. Dig Dis Sci (2009) 54: 1108. doi:10.1007/s10620-008-0465-x

Abstract

We conducted this study to evaluate the impact of the expression of peroxisome proliferator-activated receptor delta on angiogenesis in tissue samples of colorectal cancer. We examined 52 samples of primary human colorectal carcinomas and matched normal adjacent tissues to evaluate the expression of peroxisome proliferator-activated receptor delta, cyclooxygenase-2, vascular endothelial growth factor-A, and CD34 through immunohistochemical analysis. Peroxisome proliferator-activated receptor delta was expressed in 25 (48.1%), and cyclooxygenase-2 was expressed in 26 (50.0%) of total colorectal cancer tissues. Tissue samples were divided into four groups, according to the expression of peroxisome proliferator-activated receptor delta and cyclooxygenase-2. The positive rate of vascular endothelial growth factor-A, the levels of microvascular density, and the incidence of venous vessel invasion in peroxisome proliferator-activated receptor delta (+)/cyclooxygenase-2 (+) samples exceeded significantly those in the other three groups of tissue samples (P < 0.05). The results suggest that the axis of the cyclooxygenase-2/peroxisome proliferator-activated receptor delta signal pathway might play a crucial role in the development of colorectal cancers by enhancing angiogenesis.

Keywords

Peroxisome proliferator-activated receptor (PPAR) deltaCyclooxygenase (COX-2)AngiogenesisVenous vessel invasionColorectal cancer

Copyright information

© Springer Science+Business Media, LLC 2008

Authors and Affiliations

  • Masahiro Yoshinaga
    • 1
  • Yosuke Kitamura
    • 1
  • Tomohito Chaen
    • 1
  • Shinsaku Yamashita
    • 1
  • Satoru Tsuruta
    • 1
  • Teruaki Hisano
    • 1
  • Yoichi Ikeda
    • 2
  • Hironori Sakai
    • 1
  • Kazuhiko Nakamura
    • 3
  • Ryoichi Takayanagi
    • 3
  • Yoichi Muto
    • 2
  1. 1.Department of Gastroenterology, Hepathology, and NutritionNational Hospital Organization Beppu Medical CenterBeppuJapan
  2. 2.Department of SurgeryNational Hospital Organization Beppu Medical CenterBeppuJapan
  3. 3.Department of Medicine and Bioregulatory Science, Graduate School of Medical SciencesKyushu UniversityFukuokaJapan