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Salmonella-Based Targeted Cancer Therapy: Updates on A Promising and Innovative Tumor Immunotherapeutic Strategy

Department of Biological Sciences, National Sun Yat-sen University, Kaohsiung 80424, Taiwan
Department of Medical Research, China Medical University Hospital, China Medical University, Taichung 404, Taiwan
Author to whom correspondence should be addressed.
Biomedicines 2019, 7(2), 36;
Received: 29 March 2019 / Revised: 25 April 2019 / Accepted: 29 April 2019 / Published: 2 May 2019
(This article belongs to the Special Issue Bacterial Cancer Therapy)
PDF [1076 KB, uploaded 8 May 2019]


Presently, cancer is one of the leading causes of death in the world, primarily due to tumor heterogeneity associated with high-grade malignancy. Tumor heterogeneity poses a tremendous challenge, especially with the emergence of resistance not only to chemo- and radiation- therapies, but also to immunotherapy using monoclonal antibodies. The use of Salmonella, as a highly selective and penetrative antitumor agent, has shown convincing results, thus meriting further investigation. In this review, the mechanisms used by Salmonella in combating cancer are carefully explained. In essence, Salmonella overcomes the suppressive nature of the tumor microenvironment and coaxes the activation of tumor-specific immune cells to induce cell death by apoptosis and autophagy. Furthermore, Salmonella treatment suppresses tumor aggressive behavior via inhibition of angiogenesis and delay of metastatic activity. Thus, harnessing the natural potential of Salmonella in eliminating tumors will provide an avenue for the development of a promising micro-based therapeutic agent that could be further enhanced to address a wide range of tumor types. View Full-Text
Keywords: Salmonella; cancer treatment; targeted therapy; tumor immunotherapy Salmonella; cancer treatment; targeted therapy; tumor immunotherapy

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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

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Pangilinan, C.R.; Lee, C.-H. Salmonella-Based Targeted Cancer Therapy: Updates on A Promising and Innovative Tumor Immunotherapeutic Strategy. Biomedicines 2019, 7, 36.

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