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Related Concept Videos

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Related Experiment Video

Updated: Jan 27, 2026

Fabrication of Custom Agarose Wells for Cell Seeding and Tissue Ring Self-assembly Using 3D-Printed Molds
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Multi-level customized 3D printing for autogenous implants in skull tissue engineering.

Hongqing Chen1,2, Jing Zhang3,4,5, Xinda Li6

  • 1Department of Neurosurgery, Xijing Hospital, Fourth Military Medical University, Xi'an, 710032, People's Republic of China.

Biofabrication
|March 28, 2019
PubMed
Summary
This summary is machine-generated.

This study introduces a multi-level customized 3D printing strategy using autogenous bone matrix for patient-specific bone repair. The novel approach ensures biocompatibility and promotes osteogenesis for effective tissue engineering solutions.

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Area of Science:

  • Biomaterials Science
  • Tissue Engineering
  • Regenerative Medicine

Background:

  • Decellularized extracellular matrix (ECM) for 3D printing faces limitations in source, biocompatibility, and biosafety.
  • Autogenous ECM offers superior biocompatibility, bioactivity, and biosafety for clinical applications.
  • Current 3D printing methods require enhancement for patient-specific tissue regeneration.

Purpose of the Study:

  • To develop a multi-level customized 3D printing (MLC-3DP) strategy using autogenous bone matrix (Auto-BM).
  • To create patient-specific implants (MLC-Auto-Bones) for bone defect repair.
  • To evaluate the biocompatibility, osteogenic potential, and in vivo efficacy of MLC-Auto-Bones.

Main Methods:

  • Developed MLC-3DP strategy incorporating shape, material (Auto-BM), and cell specificity (autogenous cells).
  • Utilized patient-derived skull flaps as a source for Auto-BM.
  • Combined Auto-BM with autogenous bone marrow-derived mesenchymal stem cells (Auto-BMSCs) for implant fabrication.

Main Results:

  • Fabricated human-scale 3D printed samples using bioactive Auto-BM particles under mild conditions.
  • MLC-Auto-Bones demonstrated inherent biocompatibility and biosafety with significant osteogenic potential.
  • In vivo studies showed tight integration, mineralization, and vascularized bone generation in critical-sized skull defects.

Conclusions:

  • The MLC-3DP strategy using Auto-BM is feasible for creating patient-specific bone implants.
  • This approach offers a promising solution for skull defects and other similar clinical requirements.
  • Autogenous materials and cells ensure enhanced biocompatibility and regenerative capacity for tissue engineering.