Antiangiogenic agent SU6668 suppresses the tumor growth of xenografted A-431 cells.

Abstract

SU6668 is an antiangiogenic agent that acts as a tyrosine kinase inhibitor for the vascular endothelial growth factor (VEGF) receptor. We treated xenografted A-431, a human squamous cell carcinoma cell line, with SU6668 to investigate the efficacy of tumor dormant therapy using angiogenesis inhibitors for patients with squamous cell carcinoma. A-431 cells were transplanted into severe combined immunodeficient (SCID) mice. The treatment group was given SU6668 at a dose of 200 mg/kg orally twice a day for 3 weeks; the control group was given only the vehicle in the same manner and intervals. SU6668 suppressed tumor growth of A-431 cells in the xenograft model. Furthermore, tumor volume and the number of vessels were significantly reduced in the treatment group compared with those of the control. No significant differences in body weight were found between the treatment and control groups, and no toxic reactions occurred during the experiment. We concluded that this agent was safe, efficient and potentially useful for the treatment of patients with squamous cell carcinoma.

• Authors: Takeshi Nakamura, Soji Ozawa, Yuko Kitagawa, Masakazu Ueda, Tetsuro Kubota, Masaki Kitajima
• Journal: Oncology reports (Oncol Rep) Vol. 15 Issue 1 Pg. 79-83 (Jan 2006) ISSN: 1021-335X [Print] Greece
• PMID: 16328037 (Publication Type: Journal Article)

Chemical References

• Angiogenesis Inhibitors
• Indoles
• Oxindoles
• Platelet Endothelial Cell Adhesion Molecule-1
• Propionates
• Pyrroles
• orantinib

Topics

• Angiogenesis Inhibitors (therapeutic use)
• Animals
• Carcinoma, Squamous Cell (blood supply, drug therapy)
• Endothelium, Vascular (chemistry)
• Esophageal Neoplasms (blood supply, drug therapy)
• Humans
• Indoles (therapeutic use)
• Mice
• Mice, SCID
• Neoplasm Transplantation
• Neovascularization, Pathologic (drug therapy)
• Oxindoles
• Platelet Endothelial Cell Adhesion Molecule-1 (analysis)
• Propionates
• Pyrroles (therapeutic use)
• Xenograft Model Antitumor Assays