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Adrenomedullin and tumour angiogenesis
L L Nikitenko1, S B Fox, S Kehoe
1Nuffield Department of Obstetrics and Gynaecology, The University of Oxford, John Radcliffe Hospital, Oxford, OX3 9DU, United Kingdom. leonid.nikitenko@obs-gyn.ox.ac.uk
British Journal of Cancer
|October 28, 2005
Summary
Adrenomedullin (AM) peptide promotes blood vessel growth and is crucial for embryonic development and tissue repair. Further research is needed to confirm its role in human tumor angiogenesis.
Area of Science:
- Cardiovascular Biology
- Oncology
- Molecular Medicine
Background:
- Adrenomedullin (AM) is a peptide with demonstrated angiogenic properties.
- AM promotes endothelial and smooth muscle cell growth and migration in vitro.
- Studies in animal models suggest AM is vital for embryonic vasculogenesis and repair after ischemia.
Purpose of the Study:
- To review the current understanding of AM's role in tumor angiogenesis.
- To highlight the gap in translational research regarding AM in human tumors.
- To propose future research directions for AM in cancer vascularization.
Main Methods:
- Review of existing literature on adrenomedullin and angiogenesis.
- Analysis of in vitro and in vivo studies, including knockout murine models.
- Discussion of AM's upregulation by hypoxia in tumors.
Main Results:
- AM has confirmed angiogenic activity, supporting cell growth and migration.
- AM plays an essential role in embryonic development and ischemic revascularization in animal models.
- AM expression is increased by hypoxia, suggesting a role in tumor progression.
Conclusions:
- AM is a significant factor in angiogenesis, with potential implications for cancer.
- Translational research confirming AM's role in human tumor vascularization is lacking.
- Further investigation is warranted to explore AM's therapeutic potential in cancer treatment.