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Updated: Jun 25, 2026

From Cells to Cell-Free Protein Synthesis within 24 Hours Using Cell-Free Autoinduction Workflow
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Developing a Minimal and Cost-Effective Cell-Free Biomanufacturing System Using an In Vitro Fluorescent Assay.

Athanasios Kritharis1, Arshaan Dhingra2, Melih Tamer3

  • 1Department of Chemical and Biological Engineering, The University of British Columbia, Vancouver, British Columbia V6T 1Z3, Canada.

ACS Synthetic Biology
|June 24, 2026
PubMed
Summary
This summary is machine-generated.

We developed a novel fluorescent assay for real-time monitoring of cell-free protein synthesis (CFPS) and metabolite dynamics. This enabled engineering a cost-effective CFPS platform, reducing manufacturing expenses by 97.5%.

Keywords:
biomanufacturingcell-free metabolic engineeringcell-free protein synthesisdesign of experimentsfluorescence assaysynthetic biology

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Area of Science:

  • Biotechnology
  • Synthetic Biology
  • Bioprocess Engineering

Background:

  • Cell-free protein synthesis (CFPS) offers potential for reduced biologics manufacturing costs but faces barriers like high reagent expenses and variable yields.
  • Current methods for monitoring CFPS are not cost-effective or high-throughput, hindering optimization efforts.
  • Understanding metabolite dynamics is crucial for improving CFPS efficiency and reproducibility.

Purpose of the Study:

  • To develop a cost-effective, high-throughput method for real-time monitoring of CFPS.
  • To identify and address technical challenges in CFPS through dynamic monitoring.
  • To engineer a minimized and significantly more affordable CFPS platform.

Main Methods:

  • Development of a novel fluorescent assay for simultaneous real-time monitoring of transcription, translation, and key metabolite pools during CFPS.
  • Utilizing the fluorescent assay to identify bottlenecks and challenges in existing CFPS systems.
  • Engineering a minimal CFPS platform based on insights gained from the real-time monitoring framework.

Main Results:

  • The developed fluorescent assay provides real-time insights into CFPS transcription, translation, and metabolite levels.
  • Technical challenges in CFPS were identified and addressed, leading to improved process understanding.
  • A minimal CFPS platform was engineered, achieving cost reductions of approximately 97.5% compared to commercial systems while maintaining comparable protein yields.

Conclusions:

  • The developed fluorescent assay is a generalizable tool for interrogating and engineering CFPS systems.
  • Real-time monitoring of transcription and metabolism provides critical insights for CFPS optimization.
  • This work significantly reduces the cost of CFPS, paving the way for broader industrial adoption in biologics manufacturing.