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Updated: Feb 8, 2026

Microfluidic Bioprinting for Engineering Vascularized Tissues and Organoids
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Inspired by Nature: Hydrogels as Versatile Tools for Vascular Engineering.

Ulrich Blache1,2, Martin Ehrbar1

  • 1Department of Obstetrics, University and University Hospital Zurich, Zurich, Switzerland.

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|July 10, 2018
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Engineered vascularized tissues and hydrogels offer solutions for vascular diseases. Advanced models are crucial for developing new vascular therapeutics and tissue replacements, reducing animal testing.

Keywords:
angiogenesisblood vesselengineeringgrowth factorhydrogeltissue model

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Area of Science:

  • Biomaterials Science
  • Tissue Engineering
  • Vascular Biology

Background:

  • Vascular diseases are a major cause of death, driving the need for engineered vascularized tissues and therapeutic strategies.
  • Hydrogel scaffolds, inspired by natural wound healing processes, are increasingly used in vascular engineering for tissue repair and disease modeling.
  • Current limitations include the scale and integration of engineered tissues for clinical translation and the need for physiologically relevant models.

Purpose of the Study:

  • To review recent advances in hydrogel-based vascular engineering for tissue replacement and therapeutic development.
  • To highlight critical issues in translating engineered vascularized tissues to clinical applications.
  • To outline future directions for creating advanced vascularized tissue models and therapeutics.

Main Methods:

  • Review of naturally derived and synthetic hydrogel scaffolds for vascular engineering.
  • Analysis of current applications in pre-vascularization, growth factor delivery, and disease modeling.
  • Discussion of material science, manufacturing technologies, and vascular biology integration.

Main Results:

  • Hydrogels enable controlled delivery of angiogenic factors and creation of vascular disease models.
  • Challenges remain in achieving clinically relevant size, stability, and host integration of engineered tissues.
  • Hierarchically organized vascular trees are essential for successful transplantation.

Conclusions:

  • Continued integration of materials science, manufacturing, and vascular biology is key for near-physiological tissue models.
  • Advanced in vitro vascular models will accelerate the development and validation of novel vascular therapeutics, reducing animal use.