CHM-1, a new vascular targeting agent, induces apoptosis of human umbilical vein endothelial cells via p53-mediated death receptor 5 up-regulation

An Chi Tsai, Shiow Lin Pan, Hui Lung Sun, Chih Ya Wang, Chieh Yu Peng, Shih Wei Wang, Ya Ling Chang, Sheng Chu Kuo, Kuo Hsiung Lee, Che Ming Teng

Research output: Contribution to journalArticle

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Abstract

CHM-1 (2′-fluoro-6,7-methylenedioxy-2-phenyl-4-quinolone) has been identified as a potent antitumor agent in human hepatocellular carcinoma; however, its role in tumor angiogenesis is unclear. This study investigated the effects of CHM-1 and the mechanisms by which it exerts its antiangiogenic and vascular disrupting properties. Using a xenograft model antitumor assay, we found that CHM-1 significantly inhibits tumor growth and microvessel formation. Flow cytometry, immunofluorescence microscopy, and cell death enzyme-linked immunosorbent assay kit revealed that CHM-1 inhibits growth of human umbilical vein endothelial cells (HUVEC) by induction of apoptotic cell death in a concentration-dependent manner. CHM-1 also suppresses HUVEC migration and capillary-like tube formation. Wewere able to correlate CHM-1-induced apoptosis in HUVEC with the cleavage of procaspase-3, -7, and -8, as well as with the cleavage of poly(ADP-ribose) polymerase by Western blotting assay. Such sensitization was achieved through up-regulation of death receptor 5 (DR5) but not DR4 or Fas. CHM-1 was also capable of increasing the expression level of p53, and most importantly, the induction of DR5 by CHM-1 was abolished by p53 small interfering RNA. Taken together, the results of this study indicate that CHM-1 exhibits vascular targeting activity associated with the induction of DR5-mediated endothelial cell apoptosis through p53 up-regulation, which suggests its potential as an antivascular and antitumor therapeutic agent.

Original languageEnglish
Pages (from-to)5497-5506
Number of pages10
JournalJournal of Biological Chemistry
Volume285
Issue number8
DOIs
Publication statusPublished - Feb 19 2010

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TNF-Related Apoptosis-Inducing Ligand Receptors
Endothelial cells
Human Umbilical Vein Endothelial Cells
Blood Vessels
Up-Regulation
Apoptosis
Assays
Antineoplastic Agents
Xenograft Model Antitumor Assays
Cell Death
Cell death
Caspase 7
Tumors
Poly(ADP-ribose) Polymerases
Growth
Microvessels
Fluorescence Microscopy
Caspase 3
Immunosorbents
Small Interfering RNA

ASJC Scopus subject areas

  • Biochemistry
  • Cell Biology
  • Molecular Biology
  • Medicine(all)

Cite this

CHM-1, a new vascular targeting agent, induces apoptosis of human umbilical vein endothelial cells via p53-mediated death receptor 5 up-regulation. / Tsai, An Chi; Pan, Shiow Lin; Sun, Hui Lung; Wang, Chih Ya; Peng, Chieh Yu; Wang, Shih Wei; Chang, Ya Ling; Kuo, Sheng Chu; Lee, Kuo Hsiung; Teng, Che Ming.

In: Journal of Biological Chemistry, Vol. 285, No. 8, 19.02.2010, p. 5497-5506.

Research output: Contribution to journalArticle

Tsai, An Chi ; Pan, Shiow Lin ; Sun, Hui Lung ; Wang, Chih Ya ; Peng, Chieh Yu ; Wang, Shih Wei ; Chang, Ya Ling ; Kuo, Sheng Chu ; Lee, Kuo Hsiung ; Teng, Che Ming. / CHM-1, a new vascular targeting agent, induces apoptosis of human umbilical vein endothelial cells via p53-mediated death receptor 5 up-regulation. In: Journal of Biological Chemistry. 2010 ; Vol. 285, No. 8. pp. 5497-5506.
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AU - Tsai, An Chi

AU - Pan, Shiow Lin

AU - Sun, Hui Lung

AU - Wang, Chih Ya

AU - Peng, Chieh Yu

AU - Wang, Shih Wei

AU - Chang, Ya Ling

AU - Kuo, Sheng Chu

AU - Lee, Kuo Hsiung

AU - Teng, Che Ming

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AB - CHM-1 (2′-fluoro-6,7-methylenedioxy-2-phenyl-4-quinolone) has been identified as a potent antitumor agent in human hepatocellular carcinoma; however, its role in tumor angiogenesis is unclear. This study investigated the effects of CHM-1 and the mechanisms by which it exerts its antiangiogenic and vascular disrupting properties. Using a xenograft model antitumor assay, we found that CHM-1 significantly inhibits tumor growth and microvessel formation. Flow cytometry, immunofluorescence microscopy, and cell death enzyme-linked immunosorbent assay kit revealed that CHM-1 inhibits growth of human umbilical vein endothelial cells (HUVEC) by induction of apoptotic cell death in a concentration-dependent manner. CHM-1 also suppresses HUVEC migration and capillary-like tube formation. Wewere able to correlate CHM-1-induced apoptosis in HUVEC with the cleavage of procaspase-3, -7, and -8, as well as with the cleavage of poly(ADP-ribose) polymerase by Western blotting assay. Such sensitization was achieved through up-regulation of death receptor 5 (DR5) but not DR4 or Fas. CHM-1 was also capable of increasing the expression level of p53, and most importantly, the induction of DR5 by CHM-1 was abolished by p53 small interfering RNA. Taken together, the results of this study indicate that CHM-1 exhibits vascular targeting activity associated with the induction of DR5-mediated endothelial cell apoptosis through p53 up-regulation, which suggests its potential as an antivascular and antitumor therapeutic agent.

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