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Construction of Bacteria-Based Cargo Carriers for Targeted Cancer Therapy

  • Mahama A. Traore
  • Ali Sahari
  • Bahareh BehkamEmail author
Protocol
Part of the Methods in Molecular Biology book series (MIMB, volume 1831)

Abstract

Despite significant recent progress in nanomedicine, drug delivery to solid tumors remains a formidable challenge often associated with low delivery efficiency and limited penetration of the drug in poorly vascularized regions of solid tumors. Attenuated strains of facultative anaerobes have been demonstrated to have exceptionally high selectivity to primary tumors and metastatic cancer, a good safety profile, and superior intratumoral penetration performance. However, bacteria have rarely been able to completely inhibit tumor growth in immunocompetent hosts solely by their presence in the tumor. We have developed a Nanoscale Bacteria-Enabled Autonomous Drug Delivery System (NanoBEADS) in which the functional capabilities of tumor-targeting bacteria are interfaced with chemotherapeutic-loaded nanoparticles, an approach that would amplify the therapeutic potential of both modalities. Here, we describe two biomanufacturing techniques to construct NanoBEADS by linking different bacterial species with polymeric theranostic vehicles. NanoBEADS are envisioned to significantly impact current practices in cancer theranostics through improved targeting and intratumoral transport properties.

Key words

Bacteria Bacteria-based therapy Self-assembly Nanoparticle Surface functionalization Biomanufacturing Intratumoral transport Cancer 

Notes

Acknowledgments

The authors would like to thank Samir Mitragotri Laboratory for invaluable discussions regarding the particle stretching technique and Eric Leaman for help with the CAD schematic. This work was supported by the National Science Foundation (IIS-117519 and CAREER award, CBET-1454226).

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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2018

Authors and Affiliations

  • Mahama A. Traore
    • 1
    • 2
  • Ali Sahari
    • 2
  • Bahareh Behkam
    • 1
    • 2
    • 3
    Email author
  1. 1.Department of Mechanical EngineeringVirginia TechBlacksburgUSA
  2. 2.School of Biomedical Engineering and SciencesVirginia TechBlacksburgUSA
  3. 3.Macromolecules Innovation InstituteVirginia TechBlacksburgUSA

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