Organ-on-a-chip toxicology.

Area of Science:

• Toxicology
• Bioengineering
• Biomedical Research

Background:

• Traditional toxicology methods using animal models and simple cell cultures lack human relevance and predictive accuracy.
• Organ-on-a-chip (OoC) technology reconstructs human organ functions for improved toxicity testing but is often viewed as a platform, not a discipline.
• A need exists for a unified framework to elucidate toxicity mechanisms and improve human health risk assessments.

Purpose of the Study:

• To propose organ-on-a-chip toxicology (OCT) as a distinct interdisciplinary research paradigm.
• To establish a unified framework for understanding toxicity at molecular, cellular, and organ levels.
• To highlight OCT's potential for revolutionizing toxicological assessment and reducing animal testing.

Main Methods:

• Integrating advanced bioengineering and microfluidic systems with organoid technology for enhanced cellular fidelity.
• Developing comprehensive systemic toxicity models that include ADME pathways and inter-organ communication.
• Utilizing AI-driven data analytics for precise interpretation of toxicological data.

Main Results:

• OCT provides a human-centric approach to toxicity testing, offering predictive insights into drug safety and environmental hazards.
• The framework enables elucidation of toxicity mechanisms across multiple biological levels.
• OCT facilitates personalized toxicology, environmental hazard assessment, and food safety evaluations.

Conclusions:

• Organ-on-a-chip toxicology (OCT) represents a paradigm shift, integrating engineering and biological sciences for more accurate and ethical toxicity assessment.
• OCT has the potential to significantly reduce reliance on animal testing while improving the precision of human health risk evaluations.
• Addressing challenges in standardization and regulatory acceptance is crucial for the widespread adoption of OCT in global health risk assessments.