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[Effect of Mer overexpression on HMEC-1 cell angiogenesis and its mechanism]

Lei Fan1, Meng-Yun Zhou, Fei Shen

  • 1Jiangsu Institute of Hematology, The First Affiliated Hospital of Soochow University, Suzhou 215006, China.

Zhonghua Xue Ye Xue Za Zhi = Zhonghua Xueyexue Zazhi
|February 6, 2008
PubMed
Abstract

Insights

Overexpressed Mer tyrosine kinase receptor inhibits HMEC-1 cell migration and angiogenesis. This anti-angiogenesis effect is mediated by the VEGF-C/VEGFR-2 signaling pathway, offering potential therapeutic insights.

Area of Science:

  • Molecular Biology
  • Cell Biology
  • Biochemistry

Background:

  • Angiogenesis is crucial for tumor growth and metastasis.
  • Tyrosine kinase receptors play significant roles in cellular signaling pathways.
  • Mer, a member of the tyrosine kinase receptor family, has potential roles in angiogenesis.

Purpose of the Study:

  • To investigate the anti-angiogenesis effect of Mer.
  • To elucidate the underlying molecular mechanism of Mer's action.
  • To explore Mer's impact on endothelial cell migration and angiogenesis.

Main Methods:

  • Human Mer plasmid transfection into HMEC-1 cells.
  • Quantitative assessment of Mer expression via real-time PCR and Western-blot.
  • Evaluation of cell migration (Transwell) and angiogenesis (Matrigel) assays.
  • Screening of angiogenesis factors (VEGFs and VEGFRs) using real-time PCR.

Main Results:

  • Mer overexpression significantly increased mRNA and protein levels in HMEC-1 cells.
  • Mer-overexpressing cells exhibited reduced migration and angiogenesis.
  • Down-regulation of VEGF-C and VEGFR-2 expression was observed in Mer-overexpressing cells.

Conclusions:

  • Overexpressed Mer tyrosine kinase receptor inhibits HMEC-1 cell migration and angiogenesis.
  • The anti-angiogenesis effect is mediated through the VEGF-C/VEGFR-2 signaling pathway.
  • Mer represents a potential therapeutic target for inhibiting angiogenesis.

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