From:  Advancing infectious disease research through a chicken embryo model for developmental studies and antimicrobial screening of lipid nanoparticles

 Advantages and limitations of in vitro screening.

AdvantagesLimitations
Controlled conditions (pH, temperature, medium)Lack of systemic interactions (immune response, metabolism)
Rapid, high-throughput screeningLimited physiological relevance of immortalized or tumor-derived cell lines
Ethical alignment with 3R principleOversimplified environment, lacking ECM and mechanical forces
Mechanistic insights into toxicity and antimicrobial actionPoor prediction of chronic toxicity or long-term effects
Cost-effective compared with animal studiesShort experimental duration limits assessment of sustained effects