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Repurposing the bacterial surface display technology for drug delivery.

Shaobo Yang1, Mengdi Yang2, Maria Jennings3

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Engineered bacteria using surface display offer advanced therapeutic delivery, enhancing drug localization and reducing toxicity. This synthetic biology approach promises innovative treatments for various diseases.

Keywords:
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Area of Science:

  • Synthetic Biology
  • Biotechnology
  • Immunology

Background:

  • Bacteria are adaptable platforms for therapeutic delivery due to their genetic tractability and interaction with the microbiome and immune system.
  • Bacterial engineering has evolved for medical applications, with surface display technologies offering advantages over conventional methods.

Purpose of the Study:

  • To review the evolution of bacterial engineering for medical applications, focusing on drug delivery via bacterial surface display.
  • To highlight the advantages, mechanisms, and emerging applications of bacterial surface display technologies.

Main Methods:

  • Review of scientific literature on bacterial engineering and surface display technologies.
  • Analysis of biological mechanisms for surface display in Gram-negative and Gram-positive bacteria.
  • Exploration of applications in cancer therapy, vaccine development, and microbiome engineering.

Main Results:

  • Bacterial surface display enhances drug localization, prolongs therapeutic activity, and reduces systemic toxicity.
  • Key mechanisms include outer membrane proteins, sortase-mediated anchoring, and spore-based systems.
  • Emerging applications involve surface-displayed cytokines, nanobodies, and immunomodulatory proteins.

Conclusions:

  • Bacterial surface display is a powerful modality for targeted drug delivery, bridging synthetic biology and translational medicine.
  • Computational tools and interdisciplinary innovation are crucial for developing next-generation bacterial therapeutics.
  • Challenges like regulatory hurdles and microbial stability need addressing for clinical viability.