Related Experiment Video
Updated: Jul 19, 2026
09:03
Monitoring Functionality and Morphology of Vasculature Recruited by Factors Secreted by Fast-growing Tumor-generating Cells
Published on: November 23, 2014
Tumour angiogenesis: the relevance to surgeons
Annals of the Royal College of Surgeons of England
|October 25, 2006
Summary
Tumor angiogenesis, the formation of new blood vessels, is crucial for cancer growth. Understanding angiogenic mechanisms and therapies is vital for surgeons managing cancer patients and anticipating treatment side effects.
Area of Science:
- Oncology
- Vascular Biology
Background:
- Angiogenesis, the formation of new blood vessels from existing ones, is a critical hallmark of malignant tumors.
- Understanding the intricate mechanisms of tumor angiogenesis is essential for surgeons managing cancer patients.
Purpose of the Study:
- To review recent advancements in tumor angiogenesis.
- To explore the surgical implications of angiogenic mechanisms and therapies for cancer care.
Main Methods:
- A comprehensive literature search was conducted.
- Recent developments in tumor angiogenesis factors and processes were reviewed.
Main Results:
- Angiogenesis involves complex interactions between tumor and host cells, crucial at all cancer stages.
- Therapies targeting the angiogenic cascade and imaging for prognosis are under intense investigation.
- Anti-angiogenic therapies are being developed to target tumor growth.
Conclusions:
- Widespread use of anti-angiogenic therapies may impact wound healing and surgical anastomoses.
- Surgeons must consider the potential effects of anti-angiogenic treatments on patient recovery.
Related Concept Videos
01:10Mechanism of Angiogenesis
Blood vessel formation starts early during embryonic development, around day 7. In the extraembryonic yolk sac, mesodermal precursor cells called hemangioblast proliferate and differentiate into angioblast. Angioblasts express vascular endothelial growth factor receptor 2 or VEGFR2, which binds VEGF-A, a proangiogenic factor, guiding blood vessel formation. VEGF signaling promotes angioblasts to form a blood island in the developing embryo. Angioblasts further differentiate, giving rise to...
01:24Regulation of Angiogenesis and Blood Supply
Rapidly dividing tumors, embryos, and wounded tissues require more oxygen than usual, lowering the oxygen concentration in the blood. At low oxygen or hypoxic conditions, an oxygen-sensitive transcription factor called the hypoxia-inducible factor 1 or HIF1 is activated. HIF1 is a dimeric protein of alpha (ɑ) and beta (β) subunits. Under optimal oxygen conditions, HIF1β is present in the nucleus while HIF1ɑ remains in the cytosol. HIF1ɑ is hydroxylated by prolyl hydroxylase and factor...
02:17The Tumor Microenvironment
Every normal cell or tissue is embedded in a complex local environment called stroma, consisting of different cell types, a basal membrane, and blood vessels. As normal cells mutate and develop into cancer cells, their local environment also changes to allow cancer progression. The tumor microenvironment (TME) consists of a complex cellular matrix of stromal cells and the developing tumor. The cross-talk between cancer cells and surrounding stromal cells is critical to disrupt normal tissue...