A Cell-Free Protein Synthesis Platform to Produce a Clinically Relevant Allergen Panel

Ariel Helms Thames, Clayton H. Rische, Yun Cao, Rebecca A. Krier-Burris, Fei Li Kuang, Robert G. Hamilton, Charles Bronzert, Bruce S. Bochner, Michael C. Jewett

Research output: Contribution to journalArticlepeer-review


Allergens are used in the clinical diagnosis (e.g., skin tests) and treatment (e.g., immunotherapy) of allergic diseases. With growing interest in molecular allergy diagnostics and precision therapies, new tools are needed for producing allergen-based reagents. As a step to address this need, we demonstrate a cell-free protein synthesis approach for allergen production of a clinically relevant allergen panel composed of common allergens spanning a wide range of phylogenetic kingdoms. We show that allergens produced with this approach can be recognized by allergen-specific immunoglobulin E (IgE), either monoclonals or in patient sera. We also show that a cell-free expressed allergen can activate human cells such as peripheral blood basophils and CD34+ progenitor-derived mast cells in an IgE-dependent manner. We anticipate that this cell-free platform for allergen production will enable diagnostic and therapeutic technologies, providing useful tools and treatments for both the allergist and allergic patient.

Original languageEnglish (US)
Pages (from-to)2252-2261
Number of pages10
JournalACS Synthetic Biology
Issue number8
StatePublished - Aug 18 2023


  • IgE recognition
  • allergen
  • basophils
  • cell-free protein synthesis
  • mast cells

ASJC Scopus subject areas

  • Biochemistry, Genetics and Molecular Biology (miscellaneous)
  • Biomedical Engineering


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