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Organ-on-a-chip technology advances, but adoption in biomedical research lags
Key points
- Donald Ingber developed the first human lung-on-a-chip in 2007.
- The device simulated lung function for drug and chemical testing.
- Early research faced resistance, requiring animal model validation.
- Organ-on-a-chip systems offer alternatives to animal testing.
Development of Organ-on-a-Chip Technology
In 2007, cell biologist Donald Ingber and his team at Harvard University’s Wyss Institute for Biologically Inspired Engineering created a model human lung. This device, smaller than a USB stick, featured clear polymer channels lined with lung cells that mimicked the expansion and contraction of a real lung. This innovation represented a significant advancement over static tissue cultures, as it could simulate essential lung movements.
Early Validation Challenges
Ingber's artificial lung demonstrated realistic reactions to inflammatory proteins and bacteria, and showed how movement affected tissue absorption of nanoparticles. Despite its capabilities as a proof-of-principle for drug and chemical testing, the initial research paper was rejected by the journal Science, which requested additional validation through animal testing. Ingber's team conducted the requested experiments, and the study was published a year later in 2010, subsequently being cited by nearly 5,400 other papers.
Slow Adoption in Research
The initial resistance to Ingber's work highlighted the biomedical research community's reliance on animal models as the default. While companies like TissUse now specialize in building organ-on-a-chip systems, the broader scientific community has been slow to fully embrace these technologies as alternatives to traditional animal testing. This indicates a gap between technological readiness and widespread scientific adoption.
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Reporting from
Seventeen years ago, Donald Ingber and his team at Harvard University's Wyss Institute developed a human lung-on-a-chip, a device that mimics lung function for testing drugs and chemicals. Despite the technological progress in organ-on-a-chip systems, the biomedical research community has been slow to adopt these alternatives to traditional animal testing.