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Related Experiment Video

Updated: Apr 28, 2026

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Modelling inflammatory endothelial dysfunction: a human in vitro platform for translational research.

Maria Cheremkhina1, Aaron Babendreyer2, Christopher T Neullens3

  • 1Department of Biohybrid & Medical Textiles (BioTex), Institute of Applied Medical Engineering, Helmholtz Institute Aachen, RWTH Aachen University, Aachen, Germany.

Frontiers in Bioengineering and Biotechnology
|April 27, 2026
PubMed
Summary
This summary is machine-generated.

Systemic inflammation significantly impairs endothelial cell function on biohybrid implants. This study demonstrates that combined inflammatory stimuli and blood components cause endothelial dysfunction, posing challenges for implant success.

Keywords:
biohybrid medical devicesendothelial dysfunctionin vitro modellingsepsistranslational device testing

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Area of Science:

  • Biomaterials Science
  • Immunology
  • Cell Biology

Background:

  • Biohybrid implants require hemocompatibility, often achieved through endothelialisation.
  • The impact of systemic inflammation on endothelialised implants is not well understood.
  • Endothelial dysfunction is a critical factor in implant failure.

Purpose of the Study:

  • To investigate the effect of systemic inflammation on endothelialised biohybrid implants.
  • To develop an in vitro model for studying endothelial dysfunction under inflammatory stress.
  • To assess the feasibility of endothelialisation in inflammatory conditions.

Main Methods:

  • Cultured endothelial cells on polydimethylsiloxane under shear stress.
  • Exposed cells to lipopolysaccharide (LPS)-activated peripheral blood mononuclear cells (PBMCs).
  • Assessed endothelial morphology, confluence, leukocyte adhesion, and inflammatory gene expression.

Main Results:

  • Combined LPS and PBMCs significantly impaired endothelial confluence and promoted leukocyte adhesion.
  • Elevated expression of adhesion molecules (ICAM-1, VCAM-1, E-selectin) was observed.
  • Increased levels of inflammatory mediators (IL-6, IL-8, IL-10, MCP-1) were detected.

Conclusions:

  • Systemic inflammation poses significant challenges to the endothelialisation of biohybrid implants.
  • Inflammatory dynamics must be considered for the design of clinically viable next-generation implants.
  • This research highlights translational hurdles for biohybrid device development.