» Articles » PMID: 34960243

Bacterial-Based Cancer Therapy (BBCT): Recent Advances, Current Challenges, and Future Prospects for Cancer Immunotherapy

Overview
Date 2021 Dec 28
PMID 34960243
Citations 25
Authors
Affiliations
Soon will be listed here.
Abstract

Currently approximately 10 million people die each year due to cancer, and cancer is the cause of every sixth death worldwide. Tremendous efforts and progress have been made towards finding a cure for cancer. However, numerous challenges have been faced due to adverse effects of chemotherapy, radiotherapy, and alternative cancer therapies, including toxicity to non-cancerous cells, the inability of drugs to reach deep tumor tissue, and the persistent problem of increasing drug resistance in tumor cells. These challenges have increased the demand for the development of alternative approaches with greater selectivity and effectiveness against tumor cells. Cancer immunotherapy has made significant advancements towards eliminating cancer. Our understanding of cancer-directed immune responses and the mechanisms through which immune cells invade tumors have extensively helped us in the development of new therapies. Among immunotherapies, the application of bacteria and bacterial-based products has promising potential to be used as treatments that combat cancer. Bacterial targeting of tumors has been developed as a unique therapeutic option that meets the ongoing challenges of cancer treatment. In comparison with other cancer therapeutics, bacterial-based therapies have capabilities for suppressing cancer. Bacteria are known to accumulate and proliferate in the tumor microenvironment and initiate antitumor immune responses. We are currently well-informed regarding various methods by which bacteria can be manipulated by simple genetic engineering or synthetic bioengineering to induce the production of anti-cancer drugs. Further, bacterial-based cancer therapy (BBCT) can be either used as a monotherapy or in combination with other anticancer therapies for better clinical outcomes. Here, we review recent advances, current challenges, and prospects of bacteria and bacterial products in the development of BBCTs.

Citing Articles

Leveraging Microorganisms to Combat Skin Cancer.

Oyler H, Callister A, Kutch M, Wakefield M, Fang Y Microorganisms. 2025; 13(2).

PMID: 40005824 PMC: 11858759. DOI: 10.3390/microorganisms13020462.


Neo-BCV: A Novel Bacterial Liquid Complex Vaccine for Enhancing Dendritic Cell-Mediated Immune Responses Against Lung Cancer.

Zhu Z, Chu Z, Fei F, Wu C, Fei Z, Sun Y Vaccines (Basel). 2025; 13(1.

PMID: 39852843 PMC: 11768841. DOI: 10.3390/vaccines13010064.


Controlling tumor progression and recurrence in mice through combined treatment with a PD-L1 inhibitor and a designer strain that delivers GM-CSF.

Jeon H, Lim D, So E, Kim S, Jeong J, Song M Acta Pharm Sin B. 2025; 14(12):5479-5492.

PMID: 39807328 PMC: 11725042. DOI: 10.1016/j.apsb.2024.07.011.


Evaluation of a three-gene methylation model for correlating lymph node metastasis in postoperative early gastric cancer adjacent samples.

Chen S, Long S, Liu Y, Wang S, Hu Q, Fu L Front Oncol. 2024; 14:1432869.

PMID: 39484038 PMC: 11524798. DOI: 10.3389/fonc.2024.1432869.


Gut Microbiota Disruption in Hematologic Cancer Therapy: Molecular Insights and Implications for Treatment Efficacy.

Guevara-Ramirez P, Cadena-Ullauri S, Paz-Cruz E, Ruiz-Pozo V, Tamayo-Trujillo R, Cabrera-Andrade A Int J Mol Sci. 2024; 25(19).

PMID: 39408584 PMC: 11476909. DOI: 10.3390/ijms251910255.


References
1.
Zu C, Wang J . Tumor-colonizing bacteria: a potential tumor targeting therapy. Crit Rev Microbiol. 2013; 40(3):225-35. DOI: 10.3109/1040841X.2013.776511. View

2.
Frahm M, Felgner S, Kocijancic D, Rohde M, Hensel M, Curtiss 3rd R . Efficiency of conditionally attenuated Salmonella enterica serovar Typhimurium in bacterium-mediated tumor therapy. mBio. 2015; 6(2). PMC: 4453544. DOI: 10.1128/mBio.00254-15. View

3.
Ngo N, Choucair K, Creeden J, Qaqish H, Bhavsar K, Murphy C . : the promising Trojan Horse in the era of precision oncology. Future Oncol. 2019; 15(33):3861-3876. DOI: 10.2217/fon-2019-0374. View

4.
Singer H, Erhardt M, Steiner A, Zhang M, Yoshikami D, Bulaj G . Selective purification of recombinant neuroactive peptides using the flagellar type III secretion system. mBio. 2012; 3(3). PMC: 3372961. DOI: 10.1128/mBio.00115-12. View

5.
Mi Z, Feng Z, Li C, Yang X, Ma M, Rong P . -Mediated Cancer Therapy: An Innovative Therapeutic Strategy. J Cancer. 2019; 10(20):4765-4776. PMC: 6775532. DOI: 10.7150/jca.32650. View