Process Development Strategies in Plant Molecular Farming

Area of Science:

• Biotechnology
• Pharmaceutical Sciences
• Plant Molecular Biology

Background:

• Mammalian cell cultures are standard for biopharmaceutical production but are costly.
• Microbial systems are cheaper but lack complex post-translational modifications.
• Plants present a viable, cost-effective alternative for producing complex proteins.

Purpose of the Study:

• To review recent advancements in plant-based biopharmaceutical production.
• To discuss expression strategies, yield improvements, and process development.
• To analyze downstream processing challenges and economic feasibility.

Main Methods:

• Literature review of plant-based expression systems.
• Analysis of current market-ready plant-derived pharmaceuticals.
• Evaluation of downstream processing techniques and innovations.

Main Results:

• Significant progress in plant expression strategies and yield optimization.
• Emergence of the first generation of plant-derived pharmaceuticals.
• Downstream processing remains a major cost factor (up to 80%).

Conclusions:

• Plant-based biopharmaceutical production is advancing rapidly.
• Improvements in clarification and integrated processing are key to economic viability.
• Process Analytical Technology (PAT) and Quality-by-Design (QbD) are crucial for success.