Related Experiment Video
Updated: Jul 14, 2026

Modified In Vivo Matrix Gel Plug Assay for Angiogenesis Studies
Published on: June 30, 2023
Type IV collagen-derived angiogenesis inhibitors.
Thomas M Mundel1, Raghu Kalluri
1Division of Matrix Biology, Department of Medicine, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA 02215, USA.
Anti-angiogenesis therapy, introduced in 1971, targets new blood vessel formation. This review focuses on type IV collagen-derived inhibitors like Arresten, Canstatin, and Tumstatin, crucial for regulating pathological angiogenesis.
Area of Science:
- Biomedical Science
- Molecular Biology
- Pathology
Background:
- Angiogenesis, the formation of new blood vessels, is tightly regulated by pro- and anti-angiogenic factors.
- In healthy adults, the "angiogenic-switch" is typically "Off," with anti-angiogenic factors dominating.
- Dysregulated angiogenesis is implicated in various diseases, including cancer, arthritis, and retinopathy.
Purpose of the Study:
- To review the role of endogenous angiogenesis inhibitors.
- To specifically focus on type IV collagen-derived inhibitors: Arresten, Canstatin, and Tumstatin.
- To highlight their significance in controlling pathological angiogenesis.
Main Methods:
- Literature review of scientific studies on angiogenesis.
- Analysis of endogenous angiogenesis inhibitors derived from extracellular matrix (ECM) proteins.
- Focus on specific type IV collagen fragments and their inhibitory mechanisms.
Main Results:
- Identification of numerous pro- and anti-angiogenic factors since 1971.
- Confirmation that angiogenesis is crucial in both physiological and pathological processes.
- Emergence of ECM-derived peptides as potent endogenous angiogenesis inhibitors.
Conclusions:
- Type IV collagen fragments like Arresten, Canstatin, and Tumstatin are significant endogenous inhibitors of angiogenesis.
- These inhibitors offer potential therapeutic strategies for diseases characterized by aberrant angiogenesis.
- Further research into these inhibitors could lead to novel anti-angiogenesis therapies.
Related Concept Videos
Regulation of Angiogenesis and Blood Supply
Type IV Collagen of Basal Lamina
A type IV collagen molecule has six alpha chains which can exist in...
Mechanism of Angiogenesis
Targeted Cancer Therapies
There are several types of targeted therapies against specific...
Tumor Immunotherapy
Inhibition of Cdk Activity

