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Nanofibers promote HepG2 aggregate formation and cellular function.

W T Su1, Y J Liu2, T Y Huang3

  • 1Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, Taipei, Taiwan f10549@ntut.edu.tw.

Genetics and Molecular Research : GMR
|October 6, 2016
PubMed
Summary
This summary is machine-generated.

Polylactic acid-chitosan nanofibers promote HepG2 cell aggregation into spheroids, enhancing liver function. This novel scaffold supports bioartificial liver development by maintaining hepatocyte function.

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Area of Science:

  • Biomaterials Science
  • Hepatology
  • Tissue Engineering

Background:

  • Hepatocyte spheroids enhance liver-specific functions in vitro.
  • Developing effective scaffolds is crucial for bioartificial liver technologies.

Purpose of the Study:

  • To investigate the efficacy of polylactic acid-chitosan (PLA-CS) nanofibers in forming hepatocyte spheroids.
  • To evaluate the liver-specific functions of HepG2 cell spheroids cultured on PLA-CS nanofibers.

Main Methods:

  • Culturing HepG2 cells on PLA-CS nanofibers and standard 24-well plates.
  • Monitoring cell viability and spheroid formation over 5 days.
  • Assessing hepatic-related protein expression (albumin, urea) in cultured cells.

Main Results:

  • HepG2 cells exhibited good viability and formed multicellular spheroids (100-200 mm diameter) on PLA-CS nanofibers within 5 days.
  • No significant spheroid aggregation was observed in cells cultured on 24-well plates.
  • Hepatocyte spheroids on PLA-CS nanofibers showed enhanced expression of albumin and urea compared to 2D cultures.

Conclusions:

  • PLA-CS nanofibers effectively promote hepatocyte spheroid formation and enhance liver-specific functions.
  • This nanofiber scaffold offers a promising strategy for developing functional bioartificial livers.
  • Sustained hepatocyte function in vitro can be achieved using this spheroid formation method.