Interleukin-1α Enhances Angiogenesis and Is Associated With Liver Metastatic Potential in Human Gastric Cancer Cell Lines

Jiachi Ma, Hirozumi Sawai, Yoichi Matsuo, Nobuo Ochi, Akira Yasuda, Hiroki Takahashi, Takehiro Wakasugi, Hitoshi Funahashi, Mikinori Sato, Yuji Okada, Hiromitsu Takeyama, Tadao Manabe

Research output: Contribution to journalArticlepeer-review

49 Citations (Scopus)


Background: To better understand the underlying mechanism of liver metastasis formation in human gastric cancer, we evaluated the angiogenic capabilities of human gastric cancer cell lines with different metastatic potentials as well as the role of interleukin (IL)-1α in the angiogenic process. Materials and methods: Reverse transcription-polymerase chain reaction was used to detect the expression of IL-1α and vascular endothelial growth factor (VEGF) mRNA in gastric cancer cell lines with different liver metastatic potentials. Levels of VEGF secreted by human gastric cancer cells were measured by enzyme-linked immunosorbent assay. We also examined how gastric cancer cells with different metastatic potentials influence the proliferation and tube formation of human umbilical vein endothelial cells (HUVECs) using the Premix WST-1 cell proliferation assay system and an angiogenesis assay, respectively. Results: IL-1α expression levels were significantly correlated with liver metastatic potential in gastric cancer cell lines. Levels of VEGF secreted by gastric cancer cells appear to be regulated by IL-1α through IL-1 receptor Type 1 and were correlated with liver metastatic potential. Both HUVEC proliferation and tube formation were strongly enhanced by coculture with high liver-metastatic gastric cancer cells and were enhanced to a similar extent by culture in the presence of IL-1α. In contrast, blockade of IL-1α inhibited both HUVEC proliferation and angiogenesis. Conclusions: IL-1α may play a role in liver metastasis of gastric cancer via enhanced vascular endothelial cell proliferation and angiogenesis.

Original languageEnglish
Pages (from-to)197-204
Number of pages8
JournalJournal of Surgical Research
Issue number2
Publication statusPublished - 08-2008

All Science Journal Classification (ASJC) codes

  • Surgery


Dive into the research topics of 'Interleukin-1α Enhances Angiogenesis and Is Associated With Liver Metastatic Potential in Human Gastric Cancer Cell Lines'. Together they form a unique fingerprint.

Cite this