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Constructing Tissuelike Complex Structures Using Cell-Laden DNA Hydrogel Bricks.

Yijie Wang1, Yu Shao1, Xiaozhou Ma2

  • 1Key Laboratory of Organic Optoelectronics and Molecular Engineering of the Ministry of Education, Department of Chemistry, Tsinghua University , Beijing 100084, China.

ACS Applied Materials & Interfaces
|March 17, 2017
PubMed
Summary
This summary is machine-generated.

Researchers created 3D tissuelike structures using DNA hydrogel "bricks." This novel approach enables cell manipulation and migration within engineered tissues, paving the way for advanced artificial tissue fabrication.

Keywords:
DNA hydrogelcell arrangementscell migrationself-healingsupramoleculartissue engineering

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Area of Science:

  • Biomaterials Science
  • Tissue Engineering
  • Supramolecular Chemistry

Background:

  • Tissue engineering faces challenges in meeting complex requirements for engineered tissues.
  • Fabricating functional, three-dimensional (3D) tissuelike structures remains a significant hurdle.

Purpose of the Study:

  • To develop a novel method for fabricating 3D tissuelike structures using DNA supramolecular hydrogels.
  • To evaluate cell responsiveness and migration within the developed DNA hydrogel system.

Main Methods:

  • A "brick-to-wall" strategy was employed, encapsulating different cell types within DNA hydrogel bricks.
  • These hydrogel bricks were assembled to construct 3D tissuelike architectures.
  • Cellular signal responsiveness and migration through the DNA gels were assessed.

Main Results:

  • The DNA hydrogel system demonstrated effective encapsulation and manipulation of various cell types.
  • Cell migration within the 3D DNA hydrogel structures was confirmed.
  • The developed technology proved convenient, effective, and reliable for cell manipulation.

Conclusions:

  • DNA supramolecular hydrogels offer a promising platform for fabricating 3D tissuelike structures.
  • This innovative approach facilitates cell migration and manipulation, beneficial for tissue engineering.
  • The technology holds potential for advancing artificial tissue fabrication and large-scale production.