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Biomimetic In Vitro Lung Models: Current Challenges and Future Perspective.

Ali Doryab1, Jürgen Groll2

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Developing accurate in vitro lung models is crucial for advancing pulmonary drug development and understanding chronic respiratory diseases. Current models face limitations, hindering clinical translation and effective research for post-COVID complications.

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Area of Science:

  • Pulmonary medicine
  • Biomedical engineering
  • Drug development

Background:

  • Chronic respiratory diseases are a leading cause of mortality, particularly as post-COVID complications.
  • Developing effective treatments is hampered by the lack of predictive in vitro lung models for preclinical drug development.
  • Current advanced in vitro lung models are often in the proof-of-concept stage with limited clinical applicability.

Purpose of the Study:

  • To discuss the challenges and potential strategies for creating truly biomimetic in vitro lung models.
  • To highlight the limitations of current in vitro models in pulmonary research.
  • To bridge the gap between basic cellular studies and clinically relevant lung models.

Main Methods:

  • Review and analysis of current in vitro lung model technologies.
  • Discussion of technological and biological compromises in existing models.
  • Exploration of strategies for developing bioinspired and biomimetic lung models.

Main Results:

  • Current in vitro lung models exhibit significant limitations in biomimicry and clinical translation.
  • Advances in cellular and molecular studies often rely on oversimplified in vitro models.
  • There is a critical need for more realistic and predictive lung models.

Conclusions:

  • Overcoming the limitations of current in vitro lung models is essential for accelerating pulmonary drug discovery.
  • Future research should focus on developing truly biomimetic models that accurately recapitulate lung physiology.
  • Improved in vitro models will enhance the clinical translation of research findings for respiratory diseases.