Knockout Mouse

Knockout Mouse refers to a genetically engineered mouse in which a specific gene has been deliberately disrupted or deleted to eliminate its function, enabling researchers to study gene roles in physiology, development, and disease. These models may be constitutive, affecting all tissues throughout life, or conditional, where gene disruption occurs in specific tissues or at specific time points using inducible systems. Knockout mice remain foundational tools for functional genomics and translational research.

The pharmaceutical industry uses knockout mouse models for target validation, mechanism-of-action studies, and safety assessment. By observing phenotypes arising from gene loss, researchers can determine whether inhibiting a target is likely to produce therapeutic benefit or unacceptable toxicity. Knockout models also support biomarker discovery and help clarify pathway dependencies relevant to patient stratification. Limitations include species differences, compensatory biological mechanisms, and developmental effects that may not reflect adult therapeutic inhibition. Despite these challenges, knockout mice remain valuable assets supporting decision-making in drug development programmes and de-risking clinical translation.