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Mechanism of Angiogenesis

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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...

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Updated: May 1, 2026

Tissue Engineering by Intrinsic Vascularization in an In Vivo Tissue Engineering Chamber

Tissue Engineering by Intrinsic Vascularization in an In Vivo Tissue Engineering Chamber

Published on: May 30, 2016

Neovascularization in tissue engineering.

Jennifer C-Y Chung¹, Dominique Shum-Tim²

¹Division of Cardiac Surgery, McGill University Health Center, McGill University, 687 Pine Avenue West, Suite S8.73b, Montreal H3A-1A1, Quebec, Canada. jennifer.chung2@mail.mcgill.ca.

|April 9, 2014

Summary

This summary is machine-generated.

Achieving adequate vascularization is crucial for tissue engineering success. Strategies like angiogenic growth factors, gene therapy, and cell-based therapies are being explored to promote blood vessel formation for better tissue growth.

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Area of Science:

Biomedical Engineering
Regenerative Medicine
Vascular Biology

Background:

Successful tissue engineering requires robust vascularization for construct survival and integration.
Angiogenesis, the formation of new blood vessels, is a critical bottleneck in tissue engineering.
Existing strategies involve angiogenic growth factors and gene therapy for sustained protein release.

Purpose of the Study:

To review current strategies for achieving vascularization in tissue engineering.
To explore cell-based therapies as an alternative approach to neovascularization.
To highlight advancements in scaffold design and assessment assays for neovascularization.

Main Methods:

Review of literature on angiogenic growth factors and gene therapy for sustained protein delivery.
Analysis of cell-based therapeutic approaches using endothelial cells and precursors.
Examination of scaffold design innovations and neovascularization assessment techniques.

Main Results:

Angiogenic factors and gene therapy enable sustained release of pro-angiogenic proteins.
Cell-based therapies offer a promising alternative for promoting vascularization.
Progress in scaffold design and assays facilitates the evaluation of neovascularization.

Conclusions:

Vascularization remains a key challenge in tissue engineering, but significant progress is being made.
Therapeutic angiogenesis is a rapidly developing field with ongoing clinical translation efforts.
Combining multiple strategies may be necessary to achieve optimal vascularization for engineered tissues.