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Updated: Jan 19, 2026

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Key components of engineering vascularized 3-dimensional bioprinted bone constructs.

Fahimeh Shahabipour1, Nureddin Ashammakhi2, Reza K Oskuee3

  • 1National cell bank of Iran, Pasteur Institute of Iran, Tehran, Iran; Center for Minimally Invasive Therapeutics (C-MIT), University of California, Los Angeles, Los Angeles, California; California NanoSystems Institute (CNSI), University of California, Los Angeles, Los Angeles, California; Department of Bioengineering, University of California, Los Angeles, Los Angeles, California.

Translational Research : the Journal of Laboratory and Clinical Medicine
|September 19, 2019
PubMed
Summary
This summary is machine-generated.

Developing vascularized bone tissue requires overcoming oxygenation challenges in engineered constructs. This review explores 3D bioprinting strategies to create viable, blood-supplied bone substitutes for large defects.

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Area of Science:

  • Biomaterials Science
  • Tissue Engineering
  • Regenerative Medicine

Background:

  • Vascularization is critical for engineered bone constructs, especially for large defects.
  • Oxygen diffusion limits cell viability in constructs thicker than 400 µm.
  • Slow capillary ingrowth necessitates engineered solutions for vascular supply.

Purpose of the Study:

  • To review strategies for fabricating vascularized 3D bioprinted bone constructs.
  • To analyze challenges in achieving sufficient blood supply in engineered bone.
  • To highlight future trends in vascularized bone tissue engineering.

Main Methods:

  • Discussion of cell- and microfabrication-based approaches for engineered vascularization.
  • Analysis of three-dimensional (3D) bioprinting techniques for patient-specific bone.
  • Review of mechanisms of angiogenesis and bone development.

Main Results:

  • Engineered bone constructs face oxygenation challenges due to limited diffusion distances.
  • Mimicking the native bone physiological milieu is crucial for successful vascularization.
  • 3D bioprinting offers potential for patient-specific, vascularized bone substitutes.

Conclusions:

  • Overcoming vascularization hurdles is key to clinical success in bone tissue engineering.
  • Understanding angiogenesis and bone development is essential for improved construct design.
  • Future research should focus on advanced 3D bioprinting for vascularized bone regeneration.