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Updated: May 12, 2026

Bioluminescent Bacterial Imaging In Vivo

Bioluminescent Bacterial Imaging In Vivo

Published on: November 5, 2012

Bacteria as tumour-targeting vectors.

John M Pawelek¹, K Brooks Low, David Bermudes

¹Department of Dermatology, Yale University School of Medicine, Yale, CT 06520-8059, USA. john.pawelek@yale.edu

The Lancet. Oncology

|September 11, 2003

Summary

This summary is machine-generated.

Live bacteria are being re-explored for cancer treatment, acting as tumor vectors. Genetically engineered bacteria like Bifidobacterium, Clostridium, and Salmonella show promise for delivering cancer-fighting genes in clinical trials.

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Area of Science:

Oncology
Microbiology
Immunotherapy

Background:

The use of live bacteria in cancer treatment dates back nearly 150 years, initiating the study of immunomodulation.
Recent advancements in genomic sequencing and genetic engineering have revitalized interest in bacteria as targeted cancer therapies.

Purpose of the Study:

To review the historical development and current state of using bacteria as tumor-targeting vectors for cancer treatment.
To highlight bacterial strains and genetic engineering strategies being developed for clinical application.

Main Methods:

Review of historical data and current research on bacterial cancer therapy.
Discussion of bacterial strains (Bifidobacterium, Clostridium, Salmonella) that preferentially replicate in solid tumors.
Overview of genetic engineering techniques for delivering therapeutic genes via bacteria.

Main Results:

Specific bacterial strains demonstrate preferential replication within solid tumors when administered systemically.
Bacteria are effectively engineered to deliver genes encoding therapeutic agents like prodrug-converting enzymes, toxins, and cytokines.
Several bacterial candidates are advancing towards clinical trials for cancer treatment.

Conclusions:

Bacteria represent a promising platform for targeted cancer therapy, leveraging their natural tumor-homing abilities.
Continued development in genetic engineering and bacterial selection is paving the way for novel immunomodulatory cancer treatments.
Bacterial-based cancer therapies are nearing clinical application, offering a new frontier in oncology.