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Related Experiment Videos

Microfluidic platform for hepatitis B viral replication study.

Temitope R Sodunke1, Michael J Bouchard, Hongseok Moses Noh

  • 1Department of Mechanical Engineering and Mechanics, Drexel University, Philadelphia, PA, 19104, USA.

Biomedical Microdevices
|January 1, 2008
PubMed
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Researchers developed a novel microfluidic platform to study hepatitis B virus (HBV) replication in liver cells. This system overcomes limitations of cell availability, enabling new insights into HBV infection and liver cancer.

Area of Science:

  • Hepatology
  • Virology
  • Biotechnology

Background:

  • Hepatocytes are primary targets of Hepatitis B Virus (HBV), a leading cause of liver cancer.
  • Limited availability of normal human hepatocytes hinders research into HBV-associated liver cancer.
  • Miniaturized cell-culture systems are needed to study HBV's effects on hepatocyte physiology.

Purpose of the Study:

  • To develop and validate a microfluidic platform for studying HBV replication in hepatocytes.
  • To assess the platform's efficiency in transfecting and infecting liver cells with HBV.
  • To establish a model for investigating HBV infection dynamics in a controlled microenvironment.

Main Methods:

  • Fabrication of Polydimethylsiloxane (PDMS) microchannels using soft lithography.

Related Experiment Videos

  • Culture of primary rat hepatocytes (PRH) and HepG2 cells within the microfluidic chambers.
  • Transfection with HBV-genome cDNA or infection with recombinant adenovirus carrying the HBV genome.
  • Detection of secreted HBV using polymerase chain reaction (PCR) on collected supernatants.

    • Main Results:

    • Achieved approximately 40% transfection efficiency in HepG2 cells and 10% in PRH.
    • Demonstrated 80-100% adenoviral infection efficiency in PRH, comparable to standard methods.
    • Successfully detected replicated HBV using the developed microfluidic platform.

    Conclusions:

    • The novel microfluidic platform effectively supports HBV replication studies in both rat and human hepatocytes.
    • This system requires a small number of cells, facilitating studies with primary human hepatocytes.
    • The platform offers a valuable tool for advancing research in HBV infection and liver cancer.