1
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Alsalloum A, Shevchenko JA, Sennikov S. NY-ESO-1 antigen: A promising frontier in cancer immunotherapy. Clin Transl Med 2024; 14:e70020. [PMID: 39275923 PMCID: PMC11399778 DOI: 10.1002/ctm2.70020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2024] [Revised: 08/22/2024] [Accepted: 09/01/2024] [Indexed: 09/16/2024] Open
Abstract
Significant strides have been made in identifying tumour-associated antigens over the past decade, revealing unique epitopes crucial for targeted cancer therapy. Among these, the New York esophageal squamous cell carcinoma (NY-ESO-1) protein, a cancer/testis antigen, stands out. This protein is presented on the cell surface by major histocompatibility complex class I molecules and exhibits restricted expression in germline cells and various cancers, marking it as an immune-privileged site. Remarkably, NY-ESO-1 serves a dual role as both a tumour-associated antigen and its own adjuvant, implying a potential function as a damage-associated molecular pattern. It elicits strong humoural immune responses, with specific antibody frequencies significantly correlating with disease progression. These characteristics make NY-ESO-1 an appealing candidate for developing effective and specific immunotherapy, particularly for advanced stages of disease. In this review, we provide a comprehensive overview of NY-ESO-1 as an immunogenic tumour antigen. We then explore the diverse strategies for targeting NY-ESO-1, including cancer vaccination with peptides, proteins, DNA, mRNA, bacterial vectors, viral vectors, dendritic cells and artificial adjuvant vector cells, while considering the benefits and drawbacks of each strategy. Additionally, we offer an in-depth analysis of adoptive T-cell therapies, highlighting innovative techniques such as next-generation NY-ESO-1 T-cell products and the integration with lymph node-targeted vaccines to address challenges and enhance therapeutic efficacy. Overall, this comprehensive review sheds light on the evolving landscape of NY-ESO-1 targeting and its potential implications for cancer treatment, opening avenues for future tailored directions in NY-ESO-1-specific immunotherapy. HIGHLIGHTS: Endogenous immune response: NY-ESO-1 exhibited high immunogenicity, activating endogenous dendritic cells, T cells and B cells. NY-ESO-1-based cancer vaccines: NY-ESO-1 vaccines using protein/peptide, RNA/DNA, microbial vectors and artificial adjuvant vector cells have shown promise in enhancing immune responses against tumours. NY-ESO-1-specific T-cell receptor-engineered cells: NY-ESO-1-targeted T cells, along with ongoing innovations in engineered natural killer cells and other cell therapies, have improved the efficacy of immunotherapy.
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Affiliation(s)
- Alaa Alsalloum
- Laboratory of Molecular ImmunologyFederal State Budgetary Scientific Institution Research Institute of Fundamental and Clinical ImmunologyNovosibirskRussia
- Faculty of Natural SciencesNovosibirsk State UniversityNovosibirskRussia
| | - Julia A. Shevchenko
- Laboratory of Molecular ImmunologyFederal State Budgetary Scientific Institution Research Institute of Fundamental and Clinical ImmunologyNovosibirskRussia
| | - Sergey Sennikov
- Laboratory of Molecular ImmunologyFederal State Budgetary Scientific Institution Research Institute of Fundamental and Clinical ImmunologyNovosibirskRussia
- Department of ImmunologyV. Zelman Institute for Medicine and PsychologyNovosibirsk State UniversityNovosibirskRussia
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2
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Ijaz M, Hasan I, Chaudhry TH, Huang R, Zhang L, Hu Z, Tan Q, Guo B. Bacterial derivatives mediated drug delivery in cancer therapy: a new generation strategy. J Nanobiotechnology 2024; 22:510. [PMID: 39182109 PMCID: PMC11344338 DOI: 10.1186/s12951-024-02786-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2024] [Accepted: 08/18/2024] [Indexed: 08/27/2024] Open
Abstract
Cancer is measured as a major threat to human life and is a leading cause of death. Millions of cancer patients die every year, although a burgeoning number of researchers have been making tremendous efforts to develop cancer medicine to fight against cancer. Owing to the complexity and heterogeneity of cancer, lack of ability to treat deep tumor tissues, and high toxicity to the normal cells, it complicates the therapy of cancer. However, bacterial derivative-mediated drug delivery has raised the interest of researchers in overcoming the restrictions of conventional cancer chemotherapy. In this review, we show various examples of tumor-targeting bacteria and bacterial derivatives for the delivery of anticancer drugs. This review also describes the advantages and limitations of delivering anticancer treatment drugs under regulated conditions employing these tumor-targeting bacteria and their membrane vesicles. This study highlights the substantial potential for clinical translation of bacterial-based drug carriers, improve their ability to work with other treatment modalities, and provide a more powerful, dependable, and distinctive tumor therapy.
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Affiliation(s)
- Muhammad Ijaz
- School of Science, Shenzhen Key Laboratory of Flexible Printed Electronics Technology, Shenzhen Key Laboratory of Advanced Functional Carbon Materials Research and Comprehensive Application, Harbin Institute of Technology, Shenzhen, 518055, China
| | - Ikram Hasan
- School of Biomedical Engineering, Medical School, Shenzhen University, Shenzhen, 518060, Guangdong, China
| | - Tamoor Hamid Chaudhry
- Antimicrobial Resistance (AMR) Containment & Infection Prevention & Control (IPC) Program, National Institute of Health, Chak Shahzad, Islamabad, Pakistan
| | - Rui Huang
- Department of Blood Transfusion, Jiangxi Provincial People's Hospital, The First Affiliated Hospital of Nanchang Medical College, Nanchang, 330000, China
| | - Lan Zhang
- Department of Blood Transfusion, Jiangxi Provincial People's Hospital, The First Affiliated Hospital of Nanchang Medical College, Nanchang, 330000, China
| | - Ziwei Hu
- Institute of Otolaryngology Head and Neck Surgery, Guangzhou Red Cross Hospital of Jinan University, Guangzhou, 510282, China.
| | - Qingqin Tan
- Department of Blood Transfusion, Jiangxi Provincial People's Hospital, The First Affiliated Hospital of Nanchang Medical College, Nanchang, 330000, China.
| | - Bing Guo
- School of Science, Shenzhen Key Laboratory of Flexible Printed Electronics Technology, Shenzhen Key Laboratory of Advanced Functional Carbon Materials Research and Comprehensive Application, Harbin Institute of Technology, Shenzhen, 518055, China.
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3
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Kwon SY, Thi-Thu Ngo H, Son J, Hong Y, Min JJ. Exploiting bacteria for cancer immunotherapy. Nat Rev Clin Oncol 2024; 21:569-589. [PMID: 38840029 DOI: 10.1038/s41571-024-00908-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/17/2024] [Indexed: 06/07/2024]
Abstract
Immunotherapy has revolutionized the treatment of cancer but continues to be constrained by limited response rates, acquired resistance, toxicities and high costs, which necessitates the development of new, innovative strategies. The discovery of a connection between the human microbiota and cancer dates back 4,000 years, when local infection was observed to result in tumour eradication in some individuals. However, the true oncological relevance of the intratumoural microbiota was not recognized until the turn of the twentieth century. The intratumoural microbiota can have pivotal roles in both the pathogenesis and treatment of cancer. In particular, intratumoural bacteria can either promote or inhibit cancer growth via remodelling of the tumour microenvironment. Over the past two decades, remarkable progress has been made preclinically in engineering bacteria as agents for cancer immunotherapy; some of these bacterial products have successfully reached the clinical stages of development. In this Review, we discuss the characteristics of intratumoural bacteria and their intricate interactions with the tumour microenvironment. We also describe the many strategies used to engineer bacteria for use in the treatment of cancer, summarizing contemporary data from completed and ongoing clinical trials. The work described herein highlights the potential of bacteria to transform the landscape of cancer therapy, bridging ancient wisdom with modern scientific innovation.
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Affiliation(s)
- Seong-Young Kwon
- Institute for Molecular Imaging and Theranostics, Chonnam National University Medical School, Jeonnam, Republic of Korea
- Department of Nuclear Medicine, Chonnam National University Medical School and Hwasun Hospital, Jeonnam, Republic of Korea
| | - Hien Thi-Thu Ngo
- Institute for Molecular Imaging and Theranostics, Chonnam National University Medical School, Jeonnam, Republic of Korea
- Department of Biomedical Sciences, Chonnam National University Medical School, Jeonnam, Republic of Korea
- Department of Biochemistry, Hanoi Medical University, Hanoi, Vietnam
| | - Jinbae Son
- CNCure Biotech, Jeonnam, Republic of Korea
| | - Yeongjin Hong
- Institute for Molecular Imaging and Theranostics, Chonnam National University Medical School, Jeonnam, Republic of Korea
- CNCure Biotech, Jeonnam, Republic of Korea
- Department of Microbiology and Immunology, Chonnam National University Medical School, Jeonnam, Republic of Korea
- National Immunotherapy Innovation Center, Chonnam National University, Jeonnam, Republic of Korea
| | - Jung-Joon Min
- Institute for Molecular Imaging and Theranostics, Chonnam National University Medical School, Jeonnam, Republic of Korea.
- Department of Nuclear Medicine, Chonnam National University Medical School and Hwasun Hospital, Jeonnam, Republic of Korea.
- Department of Biomedical Sciences, Chonnam National University Medical School, Jeonnam, Republic of Korea.
- CNCure Biotech, Jeonnam, Republic of Korea.
- Department of Microbiology and Immunology, Chonnam National University Medical School, Jeonnam, Republic of Korea.
- National Immunotherapy Innovation Center, Chonnam National University, Jeonnam, Republic of Korea.
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4
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Mowday AM, van de Laak JM, Fu Z, Henare KL, Dubois L, Lambin P, Theys J, Patterson AV. Tumor-targeting bacteria as immune stimulants - the future of cancer immunotherapy? Crit Rev Microbiol 2024:1-16. [PMID: 38346140 DOI: 10.1080/1040841x.2024.2311653] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Accepted: 01/24/2024] [Indexed: 03/22/2024]
Abstract
Cancer immunotherapies have been widely hailed as a breakthrough for cancer treatment in the last decade, epitomized by the unprecedented results observed with checkpoint blockade. Even so, only a minority of patients currently achieve durable remissions. In general, responsive patients appear to have either a high number of tumor neoantigens, a preexisting immune cell infiltrate in the tumor microenvironment, or an 'immune-active' transcriptional profile, determined in part by the presence of a type I interferon gene signature. These observations suggest that the therapeutic efficacy of immunotherapy can be enhanced through strategies that release tumor neoantigens and/or produce a pro-inflammatory tumor microenvironment. In principle, exogenous tumor-targeting bacteria offer a unique solution for improving responsiveness to immunotherapy. This review discusses how tumor-selective bacterial infection can modulate the immunological microenvironment of the tumor and the potential for combination with cancer immunotherapy strategies to further increase therapeutic efficacy. In addition, we provide a perspective on the clinical translation of replicating bacterial therapies, with a focus on the challenges that must be resolved to ensure a successful outcome.
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Affiliation(s)
- Alexandra M Mowday
- Auckland Cancer Society Research Centre, School of Medical Sciences, University of Auckland, Auckland, New Zealand
- Maurice Wilkins Centre for Molecular Biodiscovery, University of Auckland, Auckland, New Zealand
| | - Jella M van de Laak
- The M-Lab, Department of Precision Medicine, GROW-Research School of Oncology and Reproduction, Maastricht University, Maastricht, The Netherlands
| | - Zhe Fu
- Maurice Wilkins Centre for Molecular Biodiscovery, University of Auckland, Auckland, New Zealand
- Malaghan Institute of Medical Research, Wellington, New Zealand
| | - Kimiora L Henare
- Auckland Cancer Society Research Centre, School of Medical Sciences, University of Auckland, Auckland, New Zealand
- Maurice Wilkins Centre for Molecular Biodiscovery, University of Auckland, Auckland, New Zealand
| | - Ludwig Dubois
- The M-Lab, Department of Precision Medicine, GROW-Research School of Oncology and Reproduction, Maastricht University, Maastricht, The Netherlands
| | - Philippe Lambin
- The M-Lab, Department of Precision Medicine, GROW-Research School of Oncology and Reproduction, Maastricht University, Maastricht, The Netherlands
| | - Jan Theys
- The M-Lab, Department of Precision Medicine, GROW-Research School of Oncology and Reproduction, Maastricht University, Maastricht, The Netherlands
| | - Adam V Patterson
- Auckland Cancer Society Research Centre, School of Medical Sciences, University of Auckland, Auckland, New Zealand
- Maurice Wilkins Centre for Molecular Biodiscovery, University of Auckland, Auckland, New Zealand
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5
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Gurbatri C, Danino T. Engineering Probiotic E. coli Nissle 1917 for Release of Therapeutic Nanobodies. Methods Mol Biol 2024; 2748:289-305. [PMID: 38070121 DOI: 10.1007/978-1-0716-3593-3_19] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2023]
Abstract
Bioengineered probiotics enable new opportunities to improve cancer treatment strategies due to their tumor-colonizing capabilities. Here, we will describe the development of a probiotic E. coli Nissle 1917 platform encoding a synchronized lysis mechanism for the localized and sustained release of blocking nanobodies against immune checkpoint molecules like programmed cell death protein-ligand 1 and cytotoxic T lymphocyte-associated protein-4. Specifically, we will detail the experimental protocols needed to (1) encode and validate binding of recombinantly produced checkpoint blockade nanobodies, (2) evaluate the therapeutic efficacy and safety of the probiotic platform in syngeneic tumor-bearing mice, and (3) analyze the immunophenotype of the tumor microenvironment.
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Affiliation(s)
- Candice Gurbatri
- Department of Biomedical Engineering, Columbia University, New York, NY, USA
| | - Tal Danino
- Department of Biomedical Engineering, Columbia University, New York, NY, USA.
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6
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Wang S, Cheng M, Chen CC, Chang CY, Tsai YC, Yang JM, Wu TC, Huang CH, Hung CF. Salmonella immunotherapy engineered with highly efficient tumor antigen coating establishes antigen-specific CD8+ T cell immunity and increases in antitumor efficacy with type I interferon combination therapy. Oncoimmunology 2023; 13:2298444. [PMID: 38170154 PMCID: PMC10761047 DOI: 10.1080/2162402x.2023.2298444] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2023] [Accepted: 12/19/2023] [Indexed: 01/05/2024] Open
Abstract
Bacteria-based cancer therapy employs various strategies to combat tumors, one of which is delivering tumor-associated antigen (TAA) to generate specific immunity. Here, we utilized a poly-arginine extended HPV E7 antigen (9RE7) for attachment on Salmonella SL7207 outer membrane to synthesize the bacterial vaccine Salmonella-9RE7 (Sal-9RE7), which yielded a significant improvement in the amount of antigen presentation compared to the previous lysine-extended antigen coating strategy. In TC-1 tumor mouse models, Sal-9RE7 monotherapy decreased tumor growth by inducing E7 antigen-specific immunity. In addition, pairing Sal-9RE7 with adjuvant Albumin-IFNβ (Alb-IFNβ), a protein cytokine fusion, the combination significantly increased the antitumor efficacy and enhanced immunogenicity in the tumor microenvironment (TME). Our study made a significant contribution to personalized bacterial immunotherapy via TAA delivery and demonstrated the advantage of combination therapy.
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Affiliation(s)
- Suyang Wang
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Michelle Cheng
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Chao-Cheng Chen
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Chia-Yu Chang
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Ya-Chea Tsai
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Jr-Ming Yang
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - TC Wu
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
- Department of Oncology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
- Department of Obstetrics and Gynecology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
- Molecular Microbiology and Immunology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Chuan-Hsiang Huang
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Chien-Fu Hung
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
- Department of Oncology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
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7
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Gambirasi M, Safa A, Vruzhaj I, Giacomin A, Sartor F, Toffoli G. Oral Administration of Cancer Vaccines: Challenges and Future Perspectives. Vaccines (Basel) 2023; 12:26. [PMID: 38250839 PMCID: PMC10821404 DOI: 10.3390/vaccines12010026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2023] [Revised: 12/19/2023] [Accepted: 12/22/2023] [Indexed: 01/23/2024] Open
Abstract
Cancer vaccines, a burgeoning strategy in cancer treatment, are exploring innovative administration routes to enhance patient and medical staff experiences, as well as immunological outcomes. Among these, oral administration has surfaced as a particularly noteworthy approach, which is attributed to its capacity to ignite both humoral and cellular immune responses at systemic and mucosal tiers, thereby potentially bolstering vaccine efficacy comprehensively and durably. Notwithstanding this, the deployment of vaccines through the oral route in a clinical context is impeded by multifaceted challenges, predominantly stemming from the intricacy of orchestrating effective oral immunogenicity and necessitating strategic navigation through gastrointestinal barriers. Based on the immunogenicity of the gastrointestinal tract, this review critically analyses the challenges and recent advances and provides insights into the future development of oral cancer vaccines.
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Affiliation(s)
- Marta Gambirasi
- Experimental and Clinical Pharmacology Unit, Centro di Riferimento Oncologico di Aviano (CRO), IRCCS National Cancer Institute, 33081 Aviano, Italy; (M.G.); (I.V.); (F.S.)
- Department of Life Sciences, University of Trieste, 34127 Trieste, Italy;
| | - Amin Safa
- Experimental and Clinical Pharmacology Unit, Centro di Riferimento Oncologico di Aviano (CRO), IRCCS National Cancer Institute, 33081 Aviano, Italy; (M.G.); (I.V.); (F.S.)
- Doctoral School in Pharmacological Sciences, University of Padua, 35131 Padova, Italy
- Department of Immunology, School of Medicine, Zabol University of Medical Sciences, Zabol 98616-15881, Iran
| | - Idris Vruzhaj
- Experimental and Clinical Pharmacology Unit, Centro di Riferimento Oncologico di Aviano (CRO), IRCCS National Cancer Institute, 33081 Aviano, Italy; (M.G.); (I.V.); (F.S.)
- Doctoral School in Pharmacological Sciences, University of Padua, 35131 Padova, Italy
| | - Aurora Giacomin
- Department of Life Sciences, University of Trieste, 34127 Trieste, Italy;
| | - Franca Sartor
- Experimental and Clinical Pharmacology Unit, Centro di Riferimento Oncologico di Aviano (CRO), IRCCS National Cancer Institute, 33081 Aviano, Italy; (M.G.); (I.V.); (F.S.)
| | - Giuseppe Toffoli
- Experimental and Clinical Pharmacology Unit, Centro di Riferimento Oncologico di Aviano (CRO), IRCCS National Cancer Institute, 33081 Aviano, Italy; (M.G.); (I.V.); (F.S.)
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8
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Pérez Jorge G, Gontijo MTP, Brocchi M. Salmonella enterica and outer membrane vesicles are current and future options for cancer treatment. Front Cell Infect Microbiol 2023; 13:1293351. [PMID: 38116133 PMCID: PMC10728604 DOI: 10.3389/fcimb.2023.1293351] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Accepted: 11/13/2023] [Indexed: 12/21/2023] Open
Abstract
Conventional cancer therapies have many limitations. In the last decade, it has been suggested that bacteria-mediated immunotherapy may circumvent the restrictions of traditional treatments. For example, Salmonella enterica is the most promising bacteria for treating cancer due to its intrinsic abilities, such as killing tumor cells, targeting, penetrating, and proliferating into the tumor. S. enterica has been genetically modified to ensure safety and increase its intrinsic antitumor efficacy. This bacterium has been used as a vector for delivering anticancer agents and as a combination therapy with chemotherapy, radiotherapy, or photothermic. Recent studies have reported the antitumor efficacy of outer membrane vesicles (OMVs) derived from S. enterica. OMVs are considered safer than attenuated bacteria and can stimulate the immune system as they comprise most of the immunogens found on the surface of their parent bacteria. Furthermore, OMVs can also be used as nanocarriers for antitumor agents. This review describes the advances in S. enterica as immunotherapy against cancer and the mechanisms by which Salmonella fights cancer. We also highlight the use of OMVs as immunotherapy and nanocarriers of anticancer agents. OMVs derived from S. enterica are innovative and promising strategies requiring further investigation.
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Affiliation(s)
- Genesy Pérez Jorge
- Universidade Estadual de Campinas (UNICAMP), Departamento de Genética, Evolução, Microbiologia e Imunologia, Laboratório de Doenças Tropicais, Instituto de Biologia, Campinas, Brazil
| | - Marco Túlio Pardini Gontijo
- Department of Molecular Genetics and Microbiology, Duke University School of Medicine, Durham, NC, United States
| | - Marcelo Brocchi
- Universidade Estadual de Campinas (UNICAMP), Departamento de Genética, Evolução, Microbiologia e Imunologia, Laboratório de Doenças Tropicais, Instituto de Biologia, Campinas, Brazil
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9
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Din SRU, Saeed S, Khan SU, Arbi FM, Xuefang G, Zhong M. Bacteria-driven cancer therapy: Exploring advancements and challenges. Crit Rev Oncol Hematol 2023; 191:104141. [PMID: 37742883 DOI: 10.1016/j.critrevonc.2023.104141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Revised: 09/15/2023] [Accepted: 09/18/2023] [Indexed: 09/26/2023] Open
Abstract
Cancer, a serious fatal disease caused by the uncontrolled growth of cells, is the biggest challenge flagging around medicine and health fields. Conventionally, various treatments-based strategies such as radiotherapy, chemotherapy, and alternative cancer therapies possess drugs that cannot reach the cancerous tissues and make them toxic to noncancerous cells. Cancer immunotherapy has made outstanding achievements in reducing the chances of cancer. Our considerable attention towards cancer-directed immune responses and the mechanisms behind which immune cells kill cancer cells have progressively been helpful in the advancement of new therapies. Among them, bacteria-based cancer immunotherapy has achieved much more attention due to smart and robust mechanisms in activating the host anti-tumor response. Moreover, bacterial-based therapy can be utilized as a single monotherapy or in combination with multiple anticancer immunotherapies to accelerate productive clinical results. Herein, we comprehensively reviewed recent advancements, challenges, and future perspectives in developing bacterial-based cancer immunotherapies.
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Affiliation(s)
- Syed Riaz Ud Din
- Department of Microbiology, College of Basic Medical Sciences, Dalian Medical University, Dalian 116044, China
| | - Sumbul Saeed
- School of Environment and Science, Griffith University, Nathan, QLD 4111, Australia
| | - Shahid Ullah Khan
- Integrative Science Center of Germplasm Creation in Western China (CHONGQING) Science City and Southwest University, College of Agronomy and Biotechnology, Southwest University, Beibei, Chongqing 400715, China; Engineering Research Center of South Upland Agriculture, Ministry of Education, Chongqing 400715, China; Women Medical and Dental College, Khyber Medical University, Peshawar, KPK 22020, Pakistan
| | - Fawad Mueen Arbi
- Quaid-e-Azam Medical College, Bahawalpur, Punjab 63100, Pakistan
| | - Guo Xuefang
- Department of Medical Microbiology, Dalian Medical University, Dalian 116044, China
| | - Mintao Zhong
- Department of Microbiology, College of Basic Medical Sciences, Dalian Medical University, Dalian 116044, China.
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Jeong S, Afroz S, Kang D, Noh J, Suh J, Kim JH, You HJ, Kang HG, Kim YJ, Kim JH. Sarcoma Immunotherapy: Confronting Present Hurdles and Unveiling Upcoming Opportunities. Mol Cells 2023; 46:579-588. [PMID: 37853684 PMCID: PMC10590708 DOI: 10.14348/molcells.2023.0079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Revised: 08/08/2023] [Accepted: 08/10/2023] [Indexed: 10/20/2023] Open
Abstract
Sarcomas are rare and heterogeneous mesenchymal neoplasms originating from the bone or soft tissues, which pose significant treatment challenges. The current standard treatment for sarcomas consists of surgical resection, often combined with chemo- and radiotherapy; however, local recurrence and metastasis remain significant concerns. Although immunotherapy has demonstrated promise in improving long-term survival rates for certain cancers, sarcomas are generally considered to be relatively less immunogenic than other tumors, presenting substantial challenges for effective immunotherapy. In this review, we examine the possible opportunities for sarcoma immunotherapy, noting cancer testis antigens expressed in sarcomas. We then cover the current status of immunotherapies in sarcomas, including progress in cancer vaccines, immune checkpoint inhibitors, and adoptive cellular therapy and their potential in combating these tumors. Furthermore, we discuss the limitations of immunotherapies in sarcomas, including a low tumor mutation burden and immunosuppressive tumor microenvironment, and explore potential strategies to tackle the immunosuppressive barriers in therapeutic interventions, shedding light on the development of effective and personalized treatments for sarcomas. Overall, this review provides a comprehensive overview of the current status and potential of immunotherapies in sarcoma treatment, highlighting the challenges and opportunities for developing effective therapies to improve the outcomes of patients with these rare malignancies.
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Affiliation(s)
- Sehan Jeong
- Center for RNA Research, Institute for Basic Science, Seoul 08826, Korea
- Department of Biological Sciences, College of Natural Sciences, Seoul National University, Seoul 08826, Korea
| | - Sharmin Afroz
- Department of Occupational and Environmental Medicine, Ewha Womans University College of Medicine, Seoul 07985, Korea
| | - Donghyun Kang
- Center for RNA Research, Institute for Basic Science, Seoul 08826, Korea
- Department of Biological Sciences, College of Natural Sciences, Seoul National University, Seoul 08826, Korea
| | - Jeonghwan Noh
- Center for RNA Research, Institute for Basic Science, Seoul 08826, Korea
- Department of Biological Sciences, College of Natural Sciences, Seoul National University, Seoul 08826, Korea
| | - Jooyeon Suh
- Center for RNA Research, Institute for Basic Science, Seoul 08826, Korea
- Department of Biological Sciences, College of Natural Sciences, Seoul National University, Seoul 08826, Korea
| | - June Hyuk Kim
- Orthopaedic Oncology Clinic, Center for Rare Cancer, Research Institute and Hospital, Graduate School of Cancer Science and Policy, National Cancer Center, Goyang 10408, Korea
| | - Hye Jin You
- Cancer Microenvironment Branch, Division of Cancer Biology, Research Institute, National Cancer Center, Goyang 10408, Korea
| | - Hyun Guy Kang
- Orthopaedic Oncology Clinic, Center for Rare Cancer, Research Institute and Hospital, Graduate School of Cancer Science and Policy, National Cancer Center, Goyang 10408, Korea
| | - Yi-Jun Kim
- Department of Occupational and Environmental Medicine, Ewha Womans University College of Medicine, Seoul 07985, Korea
- Department of Radiation Oncology, Ewha Womans University College of Medicine, Seoul 07985, Korea
| | - Jin-Hong Kim
- Center for RNA Research, Institute for Basic Science, Seoul 08826, Korea
- Department of Biological Sciences, College of Natural Sciences, Seoul National University, Seoul 08826, Korea
- Bio-MAX Institute, Seoul National University, Seoul 08826, Korea
- Institute of Green-Bio Science and Technology, Seoul National University, Pyeongchang 25354, Korea
- Interdisciplinary Program in Bioinformatics, Seoul National University, Seoul 08826, Korea
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11
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Zhou H, Ma Y, Liu F, Li B, Qiao D, Ren P, Wang M. Current advances in cancer vaccines targeting NY-ESO-1 for solid cancer treatment. Front Immunol 2023; 14:1255799. [PMID: 37731507 PMCID: PMC10508181 DOI: 10.3389/fimmu.2023.1255799] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2023] [Accepted: 08/22/2023] [Indexed: 09/22/2023] Open
Abstract
New York-esophageal cancer 1 (NY-ESO-1) belongs to the cancer testis antigen (CTA) family, and has been identified as one of the most immunogenic tumor-associated antigens (TAAs) among the family members. Given its ability to trigger spontaneous humoral and cellular immune response and restricted expression, NY-ESO-1 has emerged as one of the most promising targets for cancer immunotherapy. Cancer vaccines, an important element of cancer immunotherapy, function by presenting an exogenous source of TAA proteins, peptides, and antigenic epitopes to CD4+ T cells via major histocompatibility complex class II (MHC-II) and to CD8+ T cells via major histocompatibility complex class I (MHC-I). These mechanisms further enhance the immune response against TAAs mediated by cytotoxic T lymphocytes (CTLs) and helper T cells. NY-ESO-1-based cancer vaccines have a history of nearly two decades, starting from the first clinical trial conducted in 2003. The current cancer vaccines targeting NY-ESO-1 have various types, including Dendritic cells (DC)-based vaccines, peptide vaccines, protein vaccines, viral vaccines, bacterial vaccines, therapeutic whole-tumor cell vaccines, DNA vaccines and mRNA vaccines, which exhibit their respective benefits and obstacles in the development and application. Here, we summarized the current advances in cancer vaccines targeting NY-ESO-1 for solid cancer treatment, aiming to provide perspectives for future research.
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Affiliation(s)
- Hong Zhou
- Center for Energy Metabolism and Reproduction, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
- Department of Research and Development, Shenzhen Innovation Immunotechnology Co., Ltd, Shenzhen, China
- Department of Research and Development, Shenzhen Institute for Innovation and Translational Medicine, Shenzhen, China
| | - Yipeng Ma
- Department of Research and Development, Shenzhen Innovation Immunotechnology Co., Ltd, Shenzhen, China
- Department of Research and Development, Shenzhen Institute for Innovation and Translational Medicine, Shenzhen, China
| | - Fenglan Liu
- Department of Research and Development, Shenzhen Innovation Immunotechnology Co., Ltd, Shenzhen, China
- Department of Research and Development, Shenzhen Institute for Innovation and Translational Medicine, Shenzhen, China
| | - Bin Li
- Department of Research and Development, Shenzhen Innovation Immunotechnology Co., Ltd, Shenzhen, China
- Department of Research and Development, Shenzhen Institute for Innovation and Translational Medicine, Shenzhen, China
| | - Dongjuan Qiao
- Department of Research and Development, Shenzhen Innovation Immunotechnology Co., Ltd, Shenzhen, China
- Department of Research and Development, Shenzhen Institute for Innovation and Translational Medicine, Shenzhen, China
| | - Peigen Ren
- Center for Energy Metabolism and Reproduction, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
| | - Mingjun Wang
- Department of Research and Development, Shenzhen Innovation Immunotechnology Co., Ltd, Shenzhen, China
- Department of Research and Development, Shenzhen Institute for Innovation and Translational Medicine, Shenzhen, China
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12
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Ishino T, Kawashima S, Tanji E, Ueno T, Ueda Y, Ogasawara S, Sato K, Mano H, Ishihara S, Kato N, Kawazu M, Togashi Y. Somatic mutations can induce a noninflamed tumour microenvironment via their original gene functions, despite deriving neoantigens. Br J Cancer 2023; 128:1166-1175. [PMID: 36732592 PMCID: PMC10006227 DOI: 10.1038/s41416-023-02165-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2022] [Revised: 01/11/2023] [Accepted: 01/13/2023] [Indexed: 02/04/2023] Open
Abstract
BACKGROUND Identifying biomarkers to predict immune checkpoint inhibitor (ICI) efficacy is warranted. Considering that somatic mutation-derived neoantigens induce strong immune responses, patients with a high tumour mutational burden reportedly tend to respond to ICIs. However, there are several conflicting data. Therefore, we focused on the original function of neoantigenic mutations and their impact on the tumour microenvironment (TME). METHODS We evaluated 88 high-frequency microsatellite instability (MSI-H) colorectal cancers and analysed the function of the identified neoantigenic mutations and their influence on programmed cell death 1 (PD-1) blockade efficacy. The results were validated using The Cancer Genome Atlas (TCGA) datasets. RESULTS We identified frameshift mutations in RNF43 as a common neoantigenic gene mutation in MSI-H tumours. However, loss-of-function RNF43 mutations induced noninflamed TME by activating the WNT/β-catenin signalling pathway. In addition, loss of RNF43 function induced resistance to PD-1 blockade even in neoantigen-rich tumours. TCGA dataset analyses demonstrated that passenger rather than driver gene mutations were related to the inflamed TME in diverse cancer types. CONCLUSIONS We propose a novel concept of "paradoxical neoantigenic mutations" that can induce noninflamed TME through their original gene functions, despite deriving neoantigens, suggesting the significance of qualities as well as quantities in neoantigenic mutations.
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Affiliation(s)
- Takamasa Ishino
- Department of Tumor Microenvironment, Okayama University, Graduate School of Medicine Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama, 700-8558, Japan.,Division of Cell Therapy, Chiba Cancer Center Research Institute, 666-2, Nitona-cho, Chuo-ku, Chiba, 260-8717, Japan.,Department of Gastroenterology, Graduate School of Medicine, Chiba University, 1‑8‑1 Inohana, Chuo‑ku, Chiba, 260‑8670, Japan
| | - Shusuke Kawashima
- Division of Cell Therapy, Chiba Cancer Center Research Institute, 666-2, Nitona-cho, Chuo-ku, Chiba, 260-8717, Japan.,Department of Dermatology, Graduate School of Medicine, Chiba University, 1‑8‑1 Inohana, Chuo‑ku, Chiba, 260‑8670, Japan
| | - Etsuko Tanji
- Division of Cell Therapy, Chiba Cancer Center Research Institute, 666-2, Nitona-cho, Chuo-ku, Chiba, 260-8717, Japan
| | - Toshihide Ueno
- Division of Cellular Signaling, National Cancer Center Research Institute; 5-1-1 Tsukiji, Chuo-ku, Tokyo, 104-0045, Japan
| | - Youki Ueda
- Department of Tumor Microenvironment, Okayama University, Graduate School of Medicine Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama, 700-8558, Japan
| | - Sadahisa Ogasawara
- Department of Gastroenterology, Graduate School of Medicine, Chiba University, 1‑8‑1 Inohana, Chuo‑ku, Chiba, 260‑8670, Japan
| | - Kazuhito Sato
- Department of Surgical Oncology, Graduate School of Medicine, The University of Tokyo; 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Hiroyuki Mano
- Division of Cellular Signaling, National Cancer Center Research Institute; 5-1-1 Tsukiji, Chuo-ku, Tokyo, 104-0045, Japan
| | - Soichiro Ishihara
- Department of Surgical Oncology, Graduate School of Medicine, The University of Tokyo; 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Naoya Kato
- Department of Gastroenterology, Graduate School of Medicine, Chiba University, 1‑8‑1 Inohana, Chuo‑ku, Chiba, 260‑8670, Japan
| | - Masahito Kawazu
- Division of Cell Therapy, Chiba Cancer Center Research Institute, 666-2, Nitona-cho, Chuo-ku, Chiba, 260-8717, Japan. .,Division of Cellular Signaling, National Cancer Center Research Institute; 5-1-1 Tsukiji, Chuo-ku, Tokyo, 104-0045, Japan.
| | - Yosuke Togashi
- Department of Tumor Microenvironment, Okayama University, Graduate School of Medicine Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama, 700-8558, Japan. .,Division of Cell Therapy, Chiba Cancer Center Research Institute, 666-2, Nitona-cho, Chuo-ku, Chiba, 260-8717, Japan.
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13
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Kaur T, Sharma D. Fundamentals of utilizing microbes in advanced cancer therapeutics: Current understanding and potential applications. ADVANCES IN APPLIED MICROBIOLOGY 2023. [PMID: 37400175 DOI: 10.1016/bs.aambs.2023.03.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/09/2023]
Abstract
One of the biggest health related issues in the twenty-first century is cancer. The current therapeutic platforms have not advanced enough to keep up with the number of rising cases. The traditional therapeutic approaches frequently fail to produce the desired outcomes. Therefore, developing new and more potent remedies is crucial. Recently, investigating microorganisms as potential anti-cancer treatments have garnered a lot of attention. Tumor-targeting microorganisms are more versatile at inhibiting cancer than the majority of standard therapies. Bacteria preferentially gather and thrive inside tumors, where they can trigger anti-cancer immune responses. They can be further trained to generate and distribute anticancer drugs based on clinical requirements using straightforward genetic engineering approaches. To improve clinical outcomes, therapeutic strategies utilizing live tumor-targeting bacteria can be used either alone or in combination with existing anticancer treatments. On the other hand, oncolytic viruses that target cancer cells, gene therapy via viral vectors, and viral immunotherapy are other popular areas of biotechnological investigation. Therefore, viruses serve as a unique candidate for anti-tumor therapy. This chapter describes the role of microbes, primarily bacteria and viruses in anti-cancer therapeutics. The various approaches to utilizing microbes in cancer therapy are discussed and examples of microorganisms that are now in use or that are undergoing experimental research are briefly discussed. We further point out the hurdles and the prospects of microbes-based remedies for cancer treatment.
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14
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Guzmán-Herrador DL, Fernández-Gómez A, Llosa M. Recruitment of heterologous substrates by bacterial secretion systems for transkingdom translocation. Front Cell Infect Microbiol 2023; 13:1146000. [PMID: 36949816 PMCID: PMC10025392 DOI: 10.3389/fcimb.2023.1146000] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2023] [Accepted: 02/22/2023] [Indexed: 03/08/2023] Open
Abstract
Bacterial secretion systems mediate the selective exchange of macromolecules between bacteria and their environment, playing a pivotal role in processes such as horizontal gene transfer or virulence. Among the different families of secretion systems, Type III, IV and VI (T3SS, T4SS and T6SS) share the ability to inject their substrates into human cells, opening up the possibility of using them as customized injectors. For this to happen, it is necessary to understand how substrates are recruited and to be able to engineer secretion signals, so that the transmembrane machineries can recognize and translocate the desired substrates in place of their own. Other factors, such as recruiting proteins, chaperones, and the degree of unfolding required to cross through the secretion channel, may also affect transport. Advances in the knowledge of the secretion mechanism have allowed heterologous substrate engineering to accomplish translocation by T3SS, and to a lesser extent, T4SS and T6SS into human cells. In the case of T4SS, transport of nucleoprotein complexes adds a bonus to its biotechnological potential. Here, we review the current knowledge on substrate recognition by these secretion systems, the many examples of heterologous substrate translocation by engineering of secretion signals, and the current and future biotechnological and biomedical applications derived from this approach.
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15
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Conti G, D’Amico F, Fabbrini M, Brigidi P, Barone M, Turroni S. Pharmacomicrobiomics in Anticancer Therapies: Why the Gut Microbiota Should Be Pointed Out. Genes (Basel) 2022; 14:55. [PMID: 36672796 PMCID: PMC9859289 DOI: 10.3390/genes14010055] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Revised: 12/09/2022] [Accepted: 12/21/2022] [Indexed: 12/28/2022] Open
Abstract
Anticancer treatments have shown a variable therapeutic outcome that may be partly attributable to the activity of the gut microbiota on the pathology and/or therapies. In recent years, microbiota-drug interactions have been extensively investigated, but most of the underlying molecular mechanisms still remain unclear. In this review, we discuss the relationship between the gut microbiota and some of the most commonly used drugs in oncological diseases. Different strategies for manipulating the gut microbiota layout (i.e., prebiotics, probiotics, antibiotics, and fecal microbiota transplantation) are then explored in order to optimize clinical outcomes in cancer patients. Anticancer technologies that exploit tumor-associated bacteria to target tumors and biotransform drugs are also briefly discussed. In the field of pharmacomicrobiomics, multi-omics strategies coupled with machine and deep learning are urgently needed to bring to light the interaction among gut microbiota, drugs, and host for the development of truly personalized precision therapies.
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Affiliation(s)
- Gabriele Conti
- Microbiomics Unit, Department of Medical and Surgical Sciences, University of Bologna, 40138 Bologna, Italy
- Unit of Microbiome Science and Biotechnology, Department of Pharmacy and Biotechnology, University of Bologna, 40126 Bologna, Italy
| | - Federica D’Amico
- Microbiomics Unit, Department of Medical and Surgical Sciences, University of Bologna, 40138 Bologna, Italy
- Unit of Microbiome Science and Biotechnology, Department of Pharmacy and Biotechnology, University of Bologna, 40126 Bologna, Italy
| | - Marco Fabbrini
- Microbiomics Unit, Department of Medical and Surgical Sciences, University of Bologna, 40138 Bologna, Italy
- Unit of Microbiome Science and Biotechnology, Department of Pharmacy and Biotechnology, University of Bologna, 40126 Bologna, Italy
| | - Patrizia Brigidi
- Microbiomics Unit, Department of Medical and Surgical Sciences, University of Bologna, 40138 Bologna, Italy
| | - Monica Barone
- Microbiomics Unit, Department of Medical and Surgical Sciences, University of Bologna, 40138 Bologna, Italy
- Unit of Microbiome Science and Biotechnology, Department of Pharmacy and Biotechnology, University of Bologna, 40126 Bologna, Italy
| | - Silvia Turroni
- Unit of Microbiome Science and Biotechnology, Department of Pharmacy and Biotechnology, University of Bologna, 40126 Bologna, Italy
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16
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Recent Advances in Bacteria-Based Cancer Treatment. Cancers (Basel) 2022; 14:cancers14194945. [PMID: 36230868 PMCID: PMC9563255 DOI: 10.3390/cancers14194945] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Revised: 09/29/2022] [Accepted: 10/03/2022] [Indexed: 12/04/2022] Open
Abstract
Simple Summary Cancer refers to a disease involving abnormal cells that proliferate uncontrollably and can invade normal body tissue. It was estimated that at least 9 million patients are killed by cancer annually. Recent studies have demonstrated that bacteria play a significant role in cancer treatment and prevention. Owing to its unique mechanism of abundant pathogen-associated molecular patterns in antitumor immune responses and preferentially accumulating and proliferating within tumors, bacteria-based cancer immunotherapy has recently attracted wide attention. We aim to illustrate that naïve bacteria and their components can serve as robust theranostic agents for cancer eradication. In addition, we summarize the recent advances in efficient antitumor treatments by genetically engineering bacteria and bacteria-based nanoparticles. Further, possible future perspectives in bacteria-based cancer immunotherapy are also inspected. Abstract Owing to its unique mechanism of abundant pathogen-associated molecular patterns in antitumor immune responses, bacteria-based cancer immunotherapy has recently attracted wide attention. Compared to traditional cancer treatments such as surgery, chemotherapy, radiotherapy, and phototherapy, bacteria-based cancer immunotherapy exhibits the versatile capabilities for suppressing cancer thanks to its preferentially accumulating and proliferating within tumors. In particular, bacteria have demonstrated their anticancer effect through the toxins, and other active components from the cell membrane, cell wall, and dormant spores. More importantly, the design of engineering bacteria with detoxification and specificity is essential for the efficacy of bacteria-based cancer therapeutics. Meanwhile, bacteria can deliver the cytokines, antibody, and other anticancer theranostic nanoparticles to tumor microenvironments by regulating the expression of the bacterial genes or chemical and physical loading. In this review, we illustrate that naïve bacteria and their components can serve as robust theranostic agents for cancer eradication. In addition, we summarize the recent advances in efficient antitumor treatments by genetically engineering bacteria and bacteria-based nanoparticles. Further, possible future perspectives in bacteria-based cancer immunotherapy are also inspected.
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17
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Salmonella as a Promising Curative Tool against Cancer. Pharmaceutics 2022; 14:pharmaceutics14102100. [PMID: 36297535 PMCID: PMC9609134 DOI: 10.3390/pharmaceutics14102100] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2022] [Revised: 09/28/2022] [Accepted: 09/28/2022] [Indexed: 11/16/2022] Open
Abstract
Bacteria-mediated cancer therapy has become a topic of interest under the broad umbrella of oncotherapy. Among many bacterial species, Salmonella remains at the forefront due to its ability to localize and proliferate inside tumor microenvironments and often suppress tumor growth. Salmonella Typhimurium is one of the most promising mediators, with engineering plasticity and cancer specificity. It can be used to deliver toxins that induce cell death in cancer cells specifically, and also as a cancer-specific instrument for immunotherapy by delivering tumor antigens and exposing the tumor environment to the host immune system. Salmonella can be used to deliver prodrug converting enzymes unambiguously against cancer. Though positive responses in Salmonella-mediated cancer treatments are still at a preliminary level, they have paved the way for developing combinatorial therapy with conventional chemotherapy, radiotherapy, and surgery, and can be used synergistically to combat multi-drug resistant and higher-stage cancers. With this background, Salmonella-mediated cancer therapy was approved for clinical trials by U.S. Food and Drug Administration, but the results were not satisfactory and more pre-clinical investigation is needed. This review summarizes the recent advancements in Salmonella-mediated oncotherapy in the fight against cancer. The present article emphasizes the demand for Salmonella mutants with high stringency toward cancer and with amenable elements of safety by virulence deletions.
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18
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Feng Z, Wang Y, Xu H, Guo Y, Xia W, Zhao C, Zhao X, Wu J. Recent advances in bacterial therapeutics based on sense and response. Acta Pharm Sin B 2022; 13:1014-1027. [PMID: 36970195 PMCID: PMC10031265 DOI: 10.1016/j.apsb.2022.09.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2022] [Revised: 06/26/2022] [Accepted: 08/18/2022] [Indexed: 11/18/2022] Open
Abstract
Intelligent drug delivery is a promising strategy for cancer therapies. In recent years, with the rapid development of synthetic biology, some properties of bacteria, such as gene operability, excellent tumor colonization ability, and host-independent structure, make them ideal intelligent drug carriers and have attracted extensive attention. By implanting condition-responsive elements or gene circuits into bacteria, they can synthesize or release drugs by sensing stimuli. Therefore, compared with traditional drug delivery, the usage of bacteria for drug loading has better targeting ability and controllability, and can cope with the complex delivery environment of the body to achieve the intelligent delivery of drugs. This review mainly introduces the development of bacterial-based drug delivery carriers, including mechanisms of bacterial targeting to tumor colonization, gene deletions or mutations, environment-responsive elements, and gene circuits. Meanwhile, we summarize the challenges and prospects faced by bacteria in clinical research, and hope to provide ideas for clinical translation.
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Affiliation(s)
- Zhuo Feng
- State Key Laboratory of Pharmaceutical Biotechnology, Chemistry and Biomedicine Innovation Center, Medical School of Nanjing University, Nanjing 210093, China
| | - Yuchen Wang
- State Key Laboratory of Pharmaceutical Biotechnology, Chemistry and Biomedicine Innovation Center, Medical School of Nanjing University, Nanjing 210093, China
| | - Haiheng Xu
- State Key Laboratory of Pharmaceutical Biotechnology, Chemistry and Biomedicine Innovation Center, Medical School of Nanjing University, Nanjing 210093, China
| | - Yunfei Guo
- State Key Laboratory of Pharmaceutical Biotechnology, Chemistry and Biomedicine Innovation Center, Medical School of Nanjing University, Nanjing 210093, China
| | - Wen Xia
- State Key Laboratory of Pharmaceutical Biotechnology, Chemistry and Biomedicine Innovation Center, Medical School of Nanjing University, Nanjing 210093, China
| | - Chenxuan Zhao
- State Key Laboratory of Pharmaceutical Biotechnology, Chemistry and Biomedicine Innovation Center, Medical School of Nanjing University, Nanjing 210093, China
| | - Xiaozhi Zhao
- Department of Andrology, Drum Tower Hospital, Medical School of Nanjing University, Nanjing 210093, China
- Corresponding authors. Tel.: +025 83592629.
| | - Jinhui Wu
- State Key Laboratory of Pharmaceutical Biotechnology, Chemistry and Biomedicine Innovation Center, Medical School of Nanjing University, Nanjing 210093, China
- Jiangsu Key Laboratory for Nano Technology, Nanjing University, Nanjing 210093, China
- Corresponding authors. Tel.: +025 83592629.
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19
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Becerra-Báez EI, Meza-Toledo SE, Muñoz-López P, Flores-Martínez LF, Fraga-Pérez K, Magaño-Bocanegra KJ, Juárez-Hernández U, Mateos-Chávez AA, Luria-Pérez R. Recombinant Attenuated Salmonella enterica as a Delivery System of Heterologous Molecules in Cancer Therapy. Cancers (Basel) 2022; 14:cancers14174224. [PMID: 36077761 PMCID: PMC9454573 DOI: 10.3390/cancers14174224] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Revised: 08/09/2022] [Accepted: 08/28/2022] [Indexed: 11/17/2022] Open
Abstract
Simple Summary Cancer is among the main causes of death of millions of individuals worldwide. Although survival has improved with conventional treatments, the appearance of resistant cancer cells leads to patient relapses. It is, therefore, necessary to find new antitumor therapies that can completely eradicate transformed cells. Bacteria-based tumor therapy represents a promising alternative treatment, particularly the use of live-attenuated Salmonella enterica, with its potential use as a delivery system of antitumor heterologous molecules such as tumor-associated antigens, cytotoxic molecules, immunomodulatory molecules, pro-apoptotic proteins, nucleic acids, and nanoparticles. In this review, we present the state of the art of current preclinical and clinical research on the use of Salmonella enterica as a potential therapeutic ally in the war against cancer. Abstract Over a century ago, bacterial extracts were found to be useful in cancer therapy, but this treatment modality was obviated for decades. Currently, in spite of the development and advances in chemotherapies and radiotherapy, failure of these conventional treatments still represents a major issue in the complete eradication of tumor cells and has led to renewed approaches with bacteria-based tumor therapy as an alternative treatment. In this context, live-attenuated bacteria, particularly Salmonella enterica, have demonstrated tumor selectivity, intrinsic oncolytic activity, and the ability to induce innate or specific antitumor immune responses. Moreover, Salmonella enterica also has strong potential as a delivery system of tumor-associated antigens, cytotoxic molecules, immunomodulatory molecules, pro-apoptotic proteins, and nucleic acids into eukaryotic cells, in a process known as bactofection and antitumor nanoparticles. In this review, we present the state of the art of current preclinical and clinical research on the use of Salmonella enterica as a potential therapeutic ally in the war against cancer.
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Affiliation(s)
- Elayne Irene Becerra-Báez
- Unit of Investigative Research on Hemato-Oncological Diseases, Children’s Hospital of Mexico Federico Gomez, Mexico City 06720, Mexico
- Departamento de Bioquímica, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Mexico City 11340, Mexico
| | - Sergio Enrique Meza-Toledo
- Departamento de Bioquímica, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Mexico City 11340, Mexico
| | - Paola Muñoz-López
- Unit of Investigative Research on Hemato-Oncological Diseases, Children’s Hospital of Mexico Federico Gomez, Mexico City 06720, Mexico
- Departamento de Microbiología, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Mexico City 11340, Mexico
| | - Luis Fernando Flores-Martínez
- Unit of Investigative Research on Hemato-Oncological Diseases, Children’s Hospital of Mexico Federico Gomez, Mexico City 06720, Mexico
- Departamento de Microbiología, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Mexico City 11340, Mexico
| | - Karla Fraga-Pérez
- Unit of Investigative Research on Hemato-Oncological Diseases, Children’s Hospital of Mexico Federico Gomez, Mexico City 06720, Mexico
| | - Kevin Jorge Magaño-Bocanegra
- Unit of Investigative Research on Hemato-Oncological Diseases, Children’s Hospital of Mexico Federico Gomez, Mexico City 06720, Mexico
- Department of Molecular Biomedicine, Center for Research and Advanced Studies of the National Polytechnic Institute, Mexico City 07360, Mexico
| | - Uriel Juárez-Hernández
- Unit of Investigative Research on Hemato-Oncological Diseases, Children’s Hospital of Mexico Federico Gomez, Mexico City 06720, Mexico
- Department of Molecular Biomedicine, Center for Research and Advanced Studies of the National Polytechnic Institute, Mexico City 07360, Mexico
| | - Armando Alfredo Mateos-Chávez
- Unit of Investigative Research on Hemato-Oncological Diseases, Children’s Hospital of Mexico Federico Gomez, Mexico City 06720, Mexico
| | - Rosendo Luria-Pérez
- Unit of Investigative Research on Hemato-Oncological Diseases, Children’s Hospital of Mexico Federico Gomez, Mexico City 06720, Mexico
- Correspondence: ; Tel.: +52-55-52289917 (ext. 4401)
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20
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Chen W, Zhu Y, Zhang Z, Sun X. Advances in Salmonella Typhimurium-based drug delivery system for cancer therapy. Adv Drug Deliv Rev 2022; 185:114295. [PMID: 35429576 DOI: 10.1016/j.addr.2022.114295] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Revised: 03/14/2022] [Accepted: 04/10/2022] [Indexed: 12/18/2022]
Abstract
The clinical application of bacteria-mediated immune therapy dates back over a century ago. In recent years, these strategies have advanced greatly with the rapid development of synthetic biology and nanotechnology. Several bacterial therapies have been developed allowing for more effective treatments for cancers, and Salmonella is one of the most studied bacterial species. Here, we review the advances in the bioengineered and functionalized Salmonella Typhimurium strains as drug delivery carries, including the various genetic circuits for programing these bacteria, the surface modification strategies using nanoparticles or other therapeutic agents for richer and broader features, and the bacterial component-based vehicles for cancer immunotherapy. This review will include the promises and challenges of these optimized Salmonella-based delivery systems and their related clinical trials. Ultimately, we hope to provide a spark of thought in the field of drug delivery and find important crosstalk between bacteria-mediated therapy and other different forms of treatments.
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21
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Wu L, Bao F, Li L, Yin X, Hua Z. Bacterially mediated drug delivery and therapeutics: Strategies and advancements. Adv Drug Deliv Rev 2022; 187:114363. [PMID: 35649449 DOI: 10.1016/j.addr.2022.114363] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Revised: 05/13/2022] [Accepted: 05/25/2022] [Indexed: 12/12/2022]
Abstract
It was already clinically apparent 150 years ago that bacterial therapy could alleviate diseases. Recently, a burgeoning number of researchers have been using bacterial regimens filled with microbial therapeutic leads to diagnose and treat a wide range of disorders and diseases, including cancers, inflammatory diseases, metabolic disorders and viral infections. Some bacteria that were designed to have low toxicity and high efficiency in drug delivery have been used to treat diseases successfully, especially in tumor therapy in animal models or clinical trials, thanks to the progress of genetic engineering and synthetic bioengineering. Therefore, genetically engineered bacteria can serve as efficient drug delivery vehicles, carrying nucleic acids or genetic circuits that encode and regulate therapeutic payloads. In this review, we summarize the development and applications of this approach. Strategies for genetically modifying strains are described in detail, along with their objectives. We also describe some controlled strategies for drug delivery and release using these modified strains as carriers. Furthermore, we discuss treatment methods for various types of diseases using engineered bacteria. Tumors are discussed as the most representative example, and other diseases are also briefly described. Finally, we discuss the challenges and prospects of drug delivery systems based on these bacteria.
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22
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Hu X, Zhou W, Pi R, Zhao X, Wang W. Genetically modified cancer vaccines: Current status and future prospects. Med Res Rev 2022; 42:1492-1517. [PMID: 35235212 DOI: 10.1002/med.21882] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2020] [Revised: 12/13/2021] [Accepted: 01/23/2022] [Indexed: 02/05/2023]
Abstract
Vaccines can stimulate the immune system to protect individuals from infectious diseases. Moreover, vaccines have also been applied to the prevention and treatment of cancers. Due to advances in genetic engineering technology, cancer vaccines could be genetically modified to increase antitumor efficacy. Various genes could be inserted into cells to boost the immune response, such as cytokines, T cell costimulatory molecules, tumor-associated antigens, and tumor-specific antigens. Genetically modified cancer vaccines utilize innate and adaptive immune responses to induce durable antineoplastic capacity and prevent the recurrence. This review will discuss the major approaches used to develop genetically modified cancer vaccines and explore recent advances to increase the understanding of engineered cancer vaccines.
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Affiliation(s)
- Xiaoyi Hu
- Department of Gynecology and Obstetrics, Development and Related Disease of Women and Children Key Laboratory of Sichuan Province, Key Laboratory of Birth Defects and Related Diseases of Women and Children, Ministry of Education, West China Second Hospital, Sichuan University, Chengdu, P. R. China.,State Key Laboratory of Biotherapy and Cancer Center, Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, Chengdu, P. R. China
| | - Weilin Zhou
- State Key Laboratory of Biotherapy and Cancer Center, Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, Chengdu, P. R. China
| | - Ruyu Pi
- Department of Gynecology and Obstetrics, Development and Related Disease of Women and Children Key Laboratory of Sichuan Province, Key Laboratory of Birth Defects and Related Diseases of Women and Children, Ministry of Education, West China Second Hospital, Sichuan University, Chengdu, P. R. China.,State Key Laboratory of Biotherapy and Cancer Center, Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, Chengdu, P. R. China
| | - Xia Zhao
- Department of Gynecology and Obstetrics, Development and Related Disease of Women and Children Key Laboratory of Sichuan Province, Key Laboratory of Birth Defects and Related Diseases of Women and Children, Ministry of Education, West China Second Hospital, Sichuan University, Chengdu, P. R. China.,State Key Laboratory of Biotherapy and Cancer Center, Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, Chengdu, P. R. China
| | - Wei Wang
- State Key Laboratory of Biotherapy and Cancer Center, Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, Chengdu, P. R. China
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23
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Iannino F, Uriza PJ, Duarte CM, Pepe MV, Roset MS, Briones G. Development of a Salmonella-based oral vaccine to control intestinal colonization of Shiga-toxin-producing Escherichia coli (STEC) in animals. Vaccine 2022; 40:1065-1073. [DOI: 10.1016/j.vaccine.2022.01.032] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Revised: 01/12/2022] [Accepted: 01/17/2022] [Indexed: 11/17/2022]
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24
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Development of an Oral Salmonella-Based Vaccine Platform against SARS-CoV-2. Vaccines (Basel) 2022; 10:vaccines10010067. [PMID: 35062728 PMCID: PMC8777945 DOI: 10.3390/vaccines10010067] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Revised: 12/30/2021] [Accepted: 12/31/2021] [Indexed: 12/20/2022] Open
Abstract
Effective vaccine development for global outbreaks, such as the coronavirus disease 2019 (COVID-19), has been successful in the short run. However, the currently available vaccines have been associated with a higher frequency of adverse effects compared with other general vaccines. In this study, the possibility of an oral bacteria-based vaccine that can be safely used as a platform for large-scale, long-term immunization was evaluated. A well-known Salmonella strain that was previously considered as a vaccine delivery candidate was used. Recombinant Salmonella cells expressing engineered viral proteins related with COVID-19 pathogenesis were engineered, and the formulation of the oral vaccine candidate strain was evaluated by in vitro and in vivo experiments. First, engineered S proteins were synthesized and cloned into expression vectors, which were than transformed into Salmonella cells. In addition, when orally administrated to mice, the vaccine promoted antigen-specific antibody production and cellular immunity was induced with no significant toxicity effects. These results suggest that Salmonella strains may represent a valuable platform for the development of an oral vaccine for COVID-19 as an alternative to tackle the outbreak of various mutated coronavirus strains and new infectious diseases in the future.
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25
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Guo F, Das JK, Kobayashi KS, Qin QM, A Ficht T, Alaniz RC, Song J, Figueiredo PD. Live attenuated bacterium limits cancer resistance to CAR-T therapy by remodeling the tumor microenvironment. J Immunother Cancer 2022; 10:e003760. [PMID: 34987022 PMCID: PMC8734016 DOI: 10.1136/jitc-2021-003760] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/20/2021] [Indexed: 01/22/2023] Open
Abstract
The tumor microenvironment (TME) is characterized by the activation of immune checkpoints, which limit the ability of immune cells to attack the growing cancer. To overcome immune suppression in the clinic, antigen-expressing viruses and bacteria have been developed to induce antitumor immunity. However, the safety and targeting specificity are the main concerns of using bacteria in clinical practice as antitumor agents. In our previous studies, we have developed an attenuated bacterial strain (Brucella melitensis 16M ∆vjbR, henceforth Bm∆vjbR) for clinical use, which is safe in all tested animal models and has been removed from the select agent list by the Centers for Disease Control and Prevention. In this study, we demonstrated that Bm∆vjbR homed to tumor tissue and improved the TME in a murine model of solid cancer. In addition, live Bm∆vjbR promoted proinflammatory M1 polarization of tumor macrophages and increased the number and activity of CD8+ T cells in the tumor. In a murine colon adenocarcinoma model, when combined with adoptive transfer of tumor-specific carcinoembryonic antigen chimeric antigen receptor CD8+ T cells, tumor cell growth and proliferation was almost completely abrogated, and host survival was 100%. Taken together, these findings demonstrate that the live attenuated bacterial treatment can defeat cancer resistance to chimeric antigen receptor T-cell therapy by remodeling the TME to promote macrophage and T cell-mediated antitumor immunity.
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Affiliation(s)
- Fengguang Guo
- Department of Microbial Pathogenesis and Immunology, Texas A&M University Health Science Center, Bryan, TX 77802, USA
| | - Jugal K Das
- Department of Microbial Pathogenesis and Immunology, Texas A&M University Health Science Center, Bryan, TX 77802, USA
| | - Koichi S Kobayashi
- Department of Microbial Pathogenesis and Immunology, Texas A&M University Health Science Center, Bryan, TX 77802, USA
- Department of Immunology, Graduate School of Medicine, Hokkaido University, Sapporo 060-8638, Japan
| | - Qing-Ming Qin
- Department of Microbial Pathogenesis and Immunology, Texas A&M University Health Science Center, Bryan, TX 77802, USA
| | - Thomas A Ficht
- Department of Veterinary Pathobiology, College of Veterinary Medicine, Texas A&M University, College Station, TX 77843, USA
| | - Robert C Alaniz
- Department of Microbial Pathogenesis and Immunology, Texas A&M University Health Science Center, Bryan, TX 77802, USA
| | - Jianxun Song
- Department of Microbial Pathogenesis and Immunology, Texas A&M University Health Science Center, Bryan, TX 77802, USA
| | - Paul De Figueiredo
- Department of Microbial Pathogenesis and Immunology, Texas A&M University Health Science Center, Bryan, TX 77802, USA
- Department of Veterinary Pathobiology, College of Veterinary Medicine, Texas A&M University, College Station, TX 77843, USA
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26
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Gupta KH, Nowicki C, Giurini EF, Marzo AL, Zloza A. Bacterial-Based Cancer Therapy (BBCT): Recent Advances, Current Challenges, and Future Prospects for Cancer Immunotherapy. Vaccines (Basel) 2021; 9:vaccines9121497. [PMID: 34960243 PMCID: PMC8707929 DOI: 10.3390/vaccines9121497] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Accepted: 11/22/2021] [Indexed: 12/19/2022] Open
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.
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Affiliation(s)
- Kajal H. Gupta
- Division of Hematology, Oncology, and Cell Therapy, Department of Internal Medicine, Rush University Medical Center, Chicago, IL 60612, USA; (K.H.G.); (C.N.); (E.F.G.); (A.L.M.)
- Division of Translational and Precision Medicine, Department of Internal Medicine, Rush University Medical Center, Chicago, IL 60612, USA
| | - Christina Nowicki
- Division of Hematology, Oncology, and Cell Therapy, Department of Internal Medicine, Rush University Medical Center, Chicago, IL 60612, USA; (K.H.G.); (C.N.); (E.F.G.); (A.L.M.)
- Division of Translational and Precision Medicine, Department of Internal Medicine, Rush University Medical Center, Chicago, IL 60612, USA
| | - Eileena F. Giurini
- Division of Hematology, Oncology, and Cell Therapy, Department of Internal Medicine, Rush University Medical Center, Chicago, IL 60612, USA; (K.H.G.); (C.N.); (E.F.G.); (A.L.M.)
- Division of Translational and Precision Medicine, Department of Internal Medicine, Rush University Medical Center, Chicago, IL 60612, USA
| | - Amanda L. Marzo
- Division of Hematology, Oncology, and Cell Therapy, Department of Internal Medicine, Rush University Medical Center, Chicago, IL 60612, USA; (K.H.G.); (C.N.); (E.F.G.); (A.L.M.)
- Division of Translational and Precision Medicine, Department of Internal Medicine, Rush University Medical Center, Chicago, IL 60612, USA
| | - Andrew Zloza
- Division of Hematology, Oncology, and Cell Therapy, Department of Internal Medicine, Rush University Medical Center, Chicago, IL 60612, USA; (K.H.G.); (C.N.); (E.F.G.); (A.L.M.)
- Division of Translational and Precision Medicine, Department of Internal Medicine, Rush University Medical Center, Chicago, IL 60612, USA
- Correspondence:
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27
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Chen QW, Qiao JY, Liu XH, Zhang C, Zhang XZ. Customized materials-assisted microorganisms in tumor therapeutics. Chem Soc Rev 2021; 50:12576-12615. [PMID: 34605834 DOI: 10.1039/d0cs01571g] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Microorganisms have been extensively applied as active biotherapeutic agents or drug delivery vehicles for antitumor treatment because of their unparalleled bio-functionalities. Taking advantage of the living attributes of microorganisms, a new avenue has been opened in anticancer research. The integration of customized functional materials with living microorganisms has demonstrated unprecedented potential in solving existing questions and even conferring microorganisms with updated antitumor abilities and has also provided an innovative train of thought for enhancing the efficacy of microorganism-based tumor therapy. In this review, we have summarized the emerging development of customized materials-assisted microorganisms (MAMO) (including bacteria, viruses, fungi, microalgae, as well as their components) in tumor therapeutics with an emphasis on the rational utilization of chosen microorganisms and tailored materials, the ingenious design of biohybrid systems, and the efficacious antitumor mechanisms. The future perspectives and challenges in this field are also discussed.
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Affiliation(s)
- Qi-Wen Chen
- Key Laboratory of Biomedical Polymers of Ministry of Education & Department of Chemistry, Wuhan University, Wuhan 430072, P. R. China.
| | - Ji-Yan Qiao
- Key Laboratory of Biomedical Polymers of Ministry of Education & Department of Chemistry, Wuhan University, Wuhan 430072, P. R. China.
| | - Xin-Hua Liu
- Key Laboratory of Biomedical Polymers of Ministry of Education & Department of Chemistry, Wuhan University, Wuhan 430072, P. R. China.
| | - Cheng Zhang
- Key Laboratory of Biomedical Polymers of Ministry of Education & Department of Chemistry, Wuhan University, Wuhan 430072, P. R. China.
| | - Xian-Zheng Zhang
- Key Laboratory of Biomedical Polymers of Ministry of Education & Department of Chemistry, Wuhan University, Wuhan 430072, P. R. China.
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28
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Takeuchi Y, Tanegashima T, Sato E, Irie T, Sai A, Itahashi K, Kumagai S, Tada Y, Togashi Y, Koyama S, Akbay EA, Karasaki T, Kataoka K, Funaki S, Shintani Y, Nagatomo I, Kida H, Ishii G, Miyoshi T, Aokage K, Kakimi K, Ogawa S, Okumura M, Eto M, Kumanogoh A, Tsuboi M, Nishikawa H. Highly immunogenic cancer cells require activation of the WNT pathway for immunological escape. Sci Immunol 2021; 6:eabc6424. [PMID: 34767457 DOI: 10.1126/sciimmunol.abc6424] [Citation(s) in RCA: 58] [Impact Index Per Article: 19.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
[Figure: see text].
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Affiliation(s)
- Yoshiko Takeuchi
- Division of Cancer Immunology, Research Institute/Exploratory Oncology Research & Clinical Trial Center (EPOC), National Cancer Center, Tokyo/Chiba, Japan.,Department of Respiratory Medicine and Clinical Immunology, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Tokiyoshi Tanegashima
- Division of Cancer Immunology, Research Institute/Exploratory Oncology Research & Clinical Trial Center (EPOC), National Cancer Center, Tokyo/Chiba, Japan.,Department of Urology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Eiichi Sato
- Department of Pathology, Institute of Medical Science, Tokyo Medical University, Tokyo, Japan
| | - Takuma Irie
- Division of Cancer Immunology, Research Institute/Exploratory Oncology Research & Clinical Trial Center (EPOC), National Cancer Center, Tokyo/Chiba, Japan
| | - Atsuo Sai
- Division of Cancer Immunology, Research Institute/Exploratory Oncology Research & Clinical Trial Center (EPOC), National Cancer Center, Tokyo/Chiba, Japan
| | - Kota Itahashi
- Division of Cancer Immunology, Research Institute/Exploratory Oncology Research & Clinical Trial Center (EPOC), National Cancer Center, Tokyo/Chiba, Japan
| | - Shogo Kumagai
- Division of Cancer Immunology, Research Institute/Exploratory Oncology Research & Clinical Trial Center (EPOC), National Cancer Center, Tokyo/Chiba, Japan.,Department of Immunology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Yasuko Tada
- Division of Cancer Immunology, Research Institute/Exploratory Oncology Research & Clinical Trial Center (EPOC), National Cancer Center, Tokyo/Chiba, Japan
| | - Yosuke Togashi
- Division of Cancer Immunology, Research Institute/Exploratory Oncology Research & Clinical Trial Center (EPOC), National Cancer Center, Tokyo/Chiba, Japan
| | - Shohei Koyama
- Division of Cancer Immunology, Research Institute/Exploratory Oncology Research & Clinical Trial Center (EPOC), National Cancer Center, Tokyo/Chiba, Japan.,Department of Respiratory Medicine and Clinical Immunology, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Esra A Akbay
- Department of Pathology, University of Texas Southwestern Medical Center, Dallas TX, USA
| | - Takahiro Karasaki
- Department of Immunotherapeutics, University of Tokyo Hospital, Tokyo, Japan
| | - Keisuke Kataoka
- Division of Molecular Oncology, Research Institute, National Cancer Center, Tokyo, Japan.,Department of Pathology and Tumor Biology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Soichiro Funaki
- Department of General Thoracic Surgery, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Yasushi Shintani
- Department of General Thoracic Surgery, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Izumi Nagatomo
- Department of Respiratory Medicine and Clinical Immunology, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Hiroshi Kida
- Department of Respiratory Medicine and Clinical Immunology, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Genichiro Ishii
- Division of Pathology, National Cancer Center Hospital East, Chiba, Japan
| | - Tomohiro Miyoshi
- Department of Thoracic Surgery, National Cancer Center Hospital East, Chiba, Japan
| | - Keiju Aokage
- Department of Thoracic Surgery, National Cancer Center Hospital East, Chiba, Japan
| | - Kazuhiro Kakimi
- Department of Pathology, University of Texas Southwestern Medical Center, Dallas TX, USA
| | - Seishi Ogawa
- Department of Pathology and Tumor Biology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Meinoshin Okumura
- Department of General Thoracic Surgery, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Masatoshi Eto
- Department of Urology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Atsushi Kumanogoh
- Department of Respiratory Medicine and Clinical Immunology, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Masahiro Tsuboi
- Department of Thoracic Surgery, National Cancer Center Hospital East, Chiba, Japan
| | - Hiroyoshi Nishikawa
- Division of Cancer Immunology, Research Institute/Exploratory Oncology Research & Clinical Trial Center (EPOC), National Cancer Center, Tokyo/Chiba, Japan.,Department of Immunology, Nagoya University Graduate School of Medicine, Nagoya, Japan
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29
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Highlights of Immunomodulation in Salmonella-Based Cancer Therapy. Biomedicines 2021; 9:biomedicines9111566. [PMID: 34829795 PMCID: PMC8615479 DOI: 10.3390/biomedicines9111566] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Revised: 10/22/2021] [Accepted: 10/27/2021] [Indexed: 12/24/2022] Open
Abstract
Bacteria-mediated cancer therapy (BMCT) is an emerging tool that may advance potential approaches in cancer immunotherapy, whereby tumors are eradicated by the hosts’ immune system upon recruitment and activation by bacteria such as Salmonella. This paper provides an emphasis on the immunomodulatory effects that encompasses both the innate and adaptive immune responses inherently triggered by Salmonella. Furthermore, modifications of Salmonella-based treatment in the attempt to improve tumor-specific immune responses including cytokine therapy, gene therapy, and DNA vaccine delivery are likewise discussed. The majority of the findings described herein incorporate cell-based experiments and murine model studies, and only a few accounts describe clinical trials. Salmonella-based cancer therapy is still under development; nonetheless, the pre-clinical research and early-phase clinical trials that have been completed so far have shown promising and convincing results. Certainly, the continuous development of, and innovation on, Salmonella-based therapy could pave the way for its eventual emergence as one of the mainstream therapeutic interventions addressing various types of cancer.
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30
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Howell LM, Forbes NS. Bacteria-based immune therapies for cancer treatment. Semin Cancer Biol 2021; 86:1163-1178. [PMID: 34547442 DOI: 10.1016/j.semcancer.2021.09.006] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Revised: 09/03/2021] [Accepted: 09/12/2021] [Indexed: 12/23/2022]
Abstract
Engineered bacterial therapies that target the tumor immune landscape offer a new class of cancer immunotherapy. Salmonella enterica and Listeria monocytogenes are two species of bacteria that have been engineered to specifically target tumors and serve as delivery vessels for immunotherapies. Therapeutic bacteria have been engineered to deliver cytokines, gene silencing shRNA, and tumor associated antigens that increase immune activation. Bacterial therapies stimulate both the innate and adaptive immune system, change the immune dynamics of the tumor microenvironment, and offer unique strategies for targeting tumors. Bacteria have innate adjuvant properties, which enable both the delivered molecules and the bacteria themselves to stimulate immune responses. Bacterial immunotherapies that deliver cytokines and tumor-associated antigens have demonstrated clinical efficacy. Harnessing the diverse set of mechanisms that Salmonella and Listeria use to alter the tumor-immune landscape has the potential to generate many new and effective immunotherapies.
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Affiliation(s)
- Lars M Howell
- Department of Chemical Engineering, University of Massachusetts, Amherst, United States
| | - Neil S Forbes
- Department of Chemical Engineering, University of Massachusetts, Amherst, United States.
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31
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Del-1 enhances therapeutic efficacy of bacterial cancer immunotherapy by blocking recruitment of tumor-infiltrating neutrophils. Clin Transl Oncol 2021; 24:244-253. [PMID: 34236615 DOI: 10.1007/s12094-021-02679-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Accepted: 06/24/2021] [Indexed: 10/20/2022]
Abstract
BACKGROUND Bacterial-mediated cancer immunotherapy (BCI) elicits a more robust initial immune response than conventional immunotherapy, but does not prevent tumor recurrence and metastasis. BCI is associated with recruitment of tumor-infiltrating neutrophils, which could suppress the therapeutic efficacy of this modality. Development endothelial locus 1 (Del-1), a potent inhibitor of neutrophil recruitment, antagonizes lymphocyte function-associated antigen-1 on the vascular endothelium. Here, we aimed to determine the effect of Del-1-secreting S.t△ppGpp on anti-tumor activity and tumor-infiltrating neutrophil recruitment in a mouse model of colon cancer. METHODS We investigated the anti-cancer activity of Del-1-secreting engineered Salmonella (△ppGpp S. Typhimurium) in the mice colon cancer models. RESULTS In the present study, we identified that Del-1-secreting engineered Salmonella had more potent anti-cancer activity compared with normal S.t△ppGpp without Del-1 secretion. We postulated that Del-1 expression increased M1 macrophage recruitment to tumors by decreasing tumor-infiltrating neutrophils. This approach could enhance the anti-cancer effects of S.t△ppGpp. CONCLUSIONS Collectively, the approach of using engineered bacteria that deliver Del-1 to block tumor-infiltrating neutrophil recruitment is a potential therapeutic approach.
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32
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Mughal MJ, Kwok HF. Multidimensional role of bacteria in cancer: Mechanisms insight, diagnostic, preventive and therapeutic potential. Semin Cancer Biol 2021; 86:1026-1044. [PMID: 34119644 DOI: 10.1016/j.semcancer.2021.06.011] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Revised: 05/28/2021] [Accepted: 06/08/2021] [Indexed: 02/08/2023]
Abstract
The active role of bacteria in oncogenesis has long been a topic of debate. Although, it was speculated to be a transmissible cause of cancer as early as the 16th-century, yet the idea about the direct involvement of bacteria in cancer development has only been explored in recent decades. More recently, several studies have uncovered the mechanisms behind the carcinogenic potential of bacteria which are inflammation, immune evasion, pro-carcinogenic metabolite production, DNA damage and genomic instability. On the other side, the recent development on the understanding of tumor microenvironment and technological advancements has turned this enemy into an ally. Studies using bacteria for cancer treatment and detection have shown noticeable effects. Therapeutic abilities of bioengineered live bacteria such as high specificity, selective cytotoxicity to cancer cells, responsiveness to external signals and control after ingestion have helped to overcome the challenges faced by conventional cancer therapies and highlighted the bacterial based therapy as an ideal approach for cancer treatment. In this review, we have made an effort to compile substantial evidence to support the multidimensional role of bacteria in cancer. We have discussed the multifaceted role of bacteria in cancer by highlighting the wide impact of bacteria on different cancer types, their mechanisms of actions in inducing carcinogenicity, followed by the diagnostic and therapeutic potential of bacteria in cancers. Moreover, we have also highlighted the existing gaps in the knowledge of the association between bacteria and cancer as well as the limitation and advantage of bacteria-based therapies in cancer. A better understanding of these multidimensional roles of bacteria in cancer can open up the new doorways to develop early detection strategies, prevent cancer, and develop therapeutic tactics to cure this devastating disease.
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Affiliation(s)
- Muhammad Jameel Mughal
- Cancer Centre, Faculty of Health Sciences, University of Macau, Avenida de Universidade, Taipa, Macau
| | - Hang Fai Kwok
- Cancer Centre, Faculty of Health Sciences, University of Macau, Avenida de Universidade, Taipa, Macau; MOE Frontiers Science Center for Precision Oncology, University of Macau, Avenida de Universidade, Taipa, Macau.
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33
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Cobb J, Rawson J, Gonzalez N, Hensel M, Kandeel F, Husseiny MI. Oral Salmonella msbB Mutant as a Carrier for a Salmonella-Based Vaccine for Prevention and Reversal of Type 1 Diabetes. Front Immunol 2021; 12:667897. [PMID: 34108968 PMCID: PMC8181392 DOI: 10.3389/fimmu.2021.667897] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2021] [Accepted: 05/06/2021] [Indexed: 11/18/2022] Open
Abstract
A therapy that includes an oral vaccine for type 1 diabetes (T1D) using live attenuated Salmonella MvP728 (ΔhtrA/ΔpurD), cytokines (IL10 and TGFβ) and preproinsulin (PPI) antigen in combination with a sub-therapeutic dose of anti-CD3 mAb was developed by our team. The vaccine combination therapy reduced insulitis and prevented and reversed diabetes in non-obese diabetic (NOD) mice. Here, we show the effectiveness of an alternative Salmonella mutant (ΔmsbB) as a carrier strain, which is anticipated to have lower risks of an inflammatory response and septicemia as a result of modification in the lipopolysaccharide (LPS) via detoxification of lipid A. This mutant strain proved to have highly reduced pathogenic side effects. Salmonella strain ΔmsbB expressed autoantigens and in combination with cytokines and anti-CD3 mAb, successfully prevented and reversed T1D to levels comparable to the previously used carrier strain ΔhtrA/ΔpurD. Additionally, the Salmonella msbB mutant resulted in higher rates of host cell infection. These results further demonstrate the potential of an oral Salmonella-based combined therapy in the treatment of early T1D.
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Affiliation(s)
- Jacob Cobb
- Department of Translational Research & Cellular Therapeutics, Arthur Riggs Diabetes & Metabolism Research Institute, Beckman Research Institute, City of Hope National Medical Center, Duarte, CA, United States
| | - Jeffrey Rawson
- Department of Translational Research & Cellular Therapeutics, Arthur Riggs Diabetes & Metabolism Research Institute, Beckman Research Institute, City of Hope National Medical Center, Duarte, CA, United States
| | - Nelson Gonzalez
- Department of Translational Research & Cellular Therapeutics, Arthur Riggs Diabetes & Metabolism Research Institute, Beckman Research Institute, City of Hope National Medical Center, Duarte, CA, United States
| | - Michael Hensel
- Division of Microbiology, University of Osnabrück, Osnabrück, Germany
| | - Fouad Kandeel
- Department of Translational Research & Cellular Therapeutics, Arthur Riggs Diabetes & Metabolism Research Institute, Beckman Research Institute, City of Hope National Medical Center, Duarte, CA, United States
| | - Mohamed I Husseiny
- Department of Translational Research & Cellular Therapeutics, Arthur Riggs Diabetes & Metabolism Research Institute, Beckman Research Institute, City of Hope National Medical Center, Duarte, CA, United States.,Faculty of Pharmacy, Zagazig University, Zagazig, Egypt
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34
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Emerging applications of bacteria as antitumor agents. Semin Cancer Biol 2021; 86:1014-1025. [PMID: 33989734 DOI: 10.1016/j.semcancer.2021.05.012] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Revised: 05/04/2021] [Accepted: 05/07/2021] [Indexed: 02/06/2023]
Abstract
Bacteria are associated with the human body and colonize the gut, skin, and mucous membranes. These associations can be either symbiotic or pathogenic. In either case, bacteria derive more benefit from their host. The ability of bacteria to enter and survive within the human body can be exploited for human benefit. They can be used as a vehicle for delivering or producing bioactive molecules, such as toxins and lytic enzymes, and eventually for killing tumor cells. Clostridium and Salmonella have been shown to infect and survive within the human body, including in tumors. There is a need to develop genetic circuits, which enable bacterial cells to carry out the following activities: (i) escape the human immune system, (ii) invade tumors, (iii) multiply within the tumorous cells, (iv) produce toxins via quorum sensing at low cell densities, and (v) express suicide genes to undergo cell death or cell lysis after the tumor has been lysed. Thus, bacteria have the potential to be exploited as anticancer agents.
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35
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Lou X, Chen Z, He Z, Sun M, Sun J. Bacteria-Mediated Synergistic Cancer Therapy: Small Microbiome Has a Big Hope. NANO-MICRO LETTERS 2021; 13:37. [PMID: 34138211 PMCID: PMC8187705 DOI: 10.1007/s40820-020-00560-9] [Citation(s) in RCA: 61] [Impact Index Per Article: 20.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/20/2020] [Accepted: 10/22/2020] [Indexed: 05/03/2023]
Abstract
The use of bacteria to specifically migrate to cancerous tissue and elicit an antitumor immune response provides a promising platform against cancer with significantly high potency. With dozens of clinical trials underway, some researchers hold the following views: "humans are nearing the first commercial live bacteria therapeutic." However, the facultative anaerobe Salmonella typhimurium VNP20009, which is particularly safe and shows anticancer effects in preclinical studies, had failed in a phase I clinical trial due to low tumor regression and undesired dose-dependent side effects. This is almost certain to disappoint people's inflated expectations, but it is noted that recent state-of-the-art research has turned attention to bacteria-mediated synergistic cancer therapy (BMSCT). In this review, the foundation of bacteria-mediated bio-therapy is outlined. Then, we summarize the potential benefits and challenges of bacterial bio-therapy in combination with different traditional anticancer therapeutic modalities (chemotherapy, photothermal therapy, reactive oxygen and nitrogen species therapy, immunotherapy, or prodrug-activating therapy) in the past 5 years. Next, we discuss multiple administration routes of BMSCT, highlighting potentiated antitumor responses and avoidance of potential side effects. Finally, we envision the opportunities and challenges for BMSCT development, with the purpose of inspiring medicinal scientists to widely utilize the microbiome approach in patient populations.
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Affiliation(s)
- Xinyu Lou
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, 110016, Liaoning, People's Republic of China
| | - Zhichao Chen
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, 110016, Liaoning, People's Republic of China
| | - Zhonggui He
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, 110016, Liaoning, People's Republic of China
| | - Mengchi Sun
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, 110016, Liaoning, People's Republic of China.
| | - Jin Sun
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, 110016, Liaoning, People's Republic of China.
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36
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Zhang W, Piao L, Liu X. Chlorogenic acid suppresses neutrophil recruitment to tumors by inducing apoptosis and reverse migration. J Funct Foods 2020. [DOI: 10.1016/j.jff.2020.104216] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
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37
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Azizian K, Pustokhina I, Ghanavati R, Hamblin MR, Amini A, Kouhsari E. The potential use of theranostic bacteria in cancer. J Cell Physiol 2020; 236:4184-4194. [PMID: 33174198 DOI: 10.1002/jcp.30152] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Revised: 10/04/2020] [Accepted: 10/29/2020] [Indexed: 02/06/2023]
Abstract
Conventional chemotherapy approaches have not been fully successful in the treatment of cancer, due to limitations imposed by the pathophysiology of solid tumors, leading to nonspecific drug uptake by healthy cells, poor bioavailability, and toxicity. Thus, novel therapeutic modalities for more efficient cancer treatment are urgently required. Living bacteria can be used as a theranostic approach for the simultaneous diagnosis and therapy of tumors. Herein, we summarize the currently available literature focused on the advantages and challenges for the use of theranostic bacteria in cancer therapy.
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Affiliation(s)
- Khalil Azizian
- Department of Laboratory Sciences, Sirjan School of Medical Sciences, Sirjan, Iran
| | - Inna Pustokhina
- I.M. Sechenov First Moscow State Medical University (Sechenov University), Moscow, Russia
| | | | - Michael R Hamblin
- Wellman Center for Photomedicine, Massachusetts General Hospital, Boston, Massachusetts, USA.,Department of Dermatology, Harvard Medical School, Boston, Massachusetts, USA.,Laser Research Centre, Faculty of Health Science, University of Johannesburg, Doornfontein, South Africa
| | - Abolfazl Amini
- Department of Medical Biotechnology, Faculty of Advanced Technologies in Medicine, Golestan University of Medical Sciences, Gorgan, Iran
| | - Ebrahim Kouhsari
- Laboratory Sciences Research Center, Golestan University of Medical Sciences, Gorgan, Iran.,Department of Laboratory Sciences, Faculty of Paramedicine, Golestan University of Medical Sciences, Gorgan, Iran
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38
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Oral delivery of bacteria: Basic principles and biomedical applications. J Control Release 2020; 327:801-833. [DOI: 10.1016/j.jconrel.2020.09.011] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2020] [Accepted: 09/05/2020] [Indexed: 12/18/2022]
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39
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Liang K, Liu Q, Kong Q. New technologies in developing recombinant-attenuated bacteria for cancer therapy. Biotechnol Bioeng 2020; 118:513-530. [PMID: 33038015 DOI: 10.1002/bit.27596] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Revised: 09/12/2020] [Accepted: 10/06/2020] [Indexed: 12/12/2022]
Abstract
Cancer has always been a global problem, with more cases of cancer patients being diagnosed every year. Conventional cancer treatments, including radiotherapy, chemotherapy, and surgery, are still unable to bypass their obvious limitations, and developing effective targeted therapies is still required. More than one century ago, the doctor William B. Coley discovered that cancer patients had tumor regression by injection of Streptococcus bacteria. The studies of cancer therapy using bacterial microorganisms are now very widespread. In particular, the facultative anaerobic bacteria Salmonella typhimurium is widely investigated as it can selectively colonize different types of tumors, locally deliver various antitumor drugs, and inhibit tumor growth. The exciting antitumor efficacy and safety observed in animal tumor models prompted the well-known attenuated Salmonella bacterial strain VNP20009 to be tested in human clinical trials in the early 21st century. Regrettably, no patients showed significant therapeutic effects and even bacterial colonization in tumor tissue was undetectable in most patients. Salmonella bacteria are still considered as a promising agent or vehicle for cancer therapy. Recent efforts have been focused on the generation of attenuated bacterial strains with higher targeting for tumor tissue, and optimization of the delivery of therapeutic antitumor cargoes into the tumor microenvironment. This review will summarize new technologies or approaches that may improve bacteria-mediated cancer therapy.
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Affiliation(s)
- Kang Liang
- College of Veterinary Medicine, Southwest University, Chongqing, China
| | - Qing Liu
- College of Animal Science and Technology, Southwest University, Chongqing, China
| | - Qingke Kong
- College of Veterinary Medicine, Southwest University, Chongqing, China
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40
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Muramatsu T, Noguchi T, Sugiyama D, Kanada Y, Fujimaki K, Ito S, Gotoh M, Nishikawa H. Newly emerged immunogenic neoantigens in established tumors enable hosts to regain immunosurveillance in a T-cell-dependent manner. Int Immunol 2020; 33:39-48. [PMID: 32729901 DOI: 10.1093/intimm/dxaa049] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Accepted: 07/25/2020] [Indexed: 12/15/2022] Open
Abstract
Tumor neoantigens derived from genetic alterations are potential T-cell targets for antitumor immunity. However, tumors develop immune escape mechanisms including loss of preexisting neoantigens and/or impairment of T-cell responses during tumor development and progression. Here, we addressed whether newly emerged immunogenic neoantigens in established tumors enabled hosts to inhibit tumor growth via controlling immune escape mechanisms. Using a doxycycline-driven gene expression system, we generated murine MC38, CT26 (colorectal cancer) and B16 (melanoma) cell lines with inducible expression of model immunogenic neoantigens such as chicken ovalbumin and human NY-ESO-1. A model neoantigen was induced by doxycycline administration in the tumors once tumors became palpable. Tumor growth was significantly inhibited upon induction of the neoantigen and this inhibition was abrogated in nude mice lacking T cells and in mice deprived of CD8+ T cells, indicating the critical role of CD8+ T cells in tumor regression. In addition, PD-1/PD-L1 blockade further augmented the antitumor immune response, resulting in a far stronger inhibition of tumor growth. Accordingly, newly emerged tumor neoantigen-specific CD8+ T cells with enhanced effector functions were significantly increased in mice treated with PD-1/PD-L1 blockade. We propose that a newly emerged neoantigen is sufficient to inhibit tumor growth via preventing immune escape in a T-cell-dependent manner. Our results imply that induction of immunogenic tumor neoantigens is a novel strategy to overcome the resistance to immune checkpoint blockade therapy.
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Affiliation(s)
- Tomoaki Muramatsu
- Department of Immunology, Nagoya University Graduate School of Medicine, Nagoya, Japan.,Department of Urology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Takuro Noguchi
- Department of Medical Oncology, Hokkaido University Graduate School of Medicine, Sapporo, Japan
| | - Daisuke Sugiyama
- Department of Immunology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Yoshie Kanada
- Department of Immunology, Nagoya University Graduate School of Medicine, Nagoya, Japan.,Department of Urology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Kaori Fujimaki
- Department of Immunology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Sachiko Ito
- Department of Immunology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Momokazu Gotoh
- Department of Urology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Hiroyoshi Nishikawa
- Department of Immunology, Nagoya University Graduate School of Medicine, Nagoya, Japan.,Division of Cancer Immunology, Research Institute, National Cancer Center, Tokyo, Japan.,Division of Cancer Immunology, Exploratory Oncology Research and Clinical Trial Center (EPOC), National Cancer Center, Chiba, Japan
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41
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Cao Z, Liu J. Bacteria and bacterial derivatives as drug carriers for cancer therapy. J Control Release 2020; 326:396-407. [PMID: 32681947 DOI: 10.1016/j.jconrel.2020.07.009] [Citation(s) in RCA: 84] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Revised: 07/03/2020] [Accepted: 07/09/2020] [Indexed: 01/21/2023]
Abstract
The application of bacteria and bacteria-derived membrane vesicles (MVs) has promising potential to make a great impact on the development of controllable targeted drug delivery for combatting cancer. Comparing to most other traditional drug delivery systems, bacteria and their MVs have unique capabilities as drug carriers for cancer treatment. They can overcome physical barriers to target and accumulate in tumor tissues and initiate antitumor immune responses. Furtherly, they are able to be modified both genetically and chemically, to produce and transport anticancer agents into tumor tissues with improved safety and efficacy of cancer treatment but decreased cytotoxic effects to normal cells. In this review, we present some examples of tumor-targeting bacteria and bacteria-derived MVs for the delivery of anticancer drugs, including chemo-therapeutic, radio-therapeutic, photothermal-therapeutic, and immuno-therapeutic agents. We also discuss the advantages as well as the limitations of these tumor-targeting bacteria and their MVs used as platforms for controlled delivery of anticancer therapeutic agents, and further highlight their great potential on clinical translation.
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Affiliation(s)
- Zhenping Cao
- Shanghai Key Laboratory for Nucleic Acid Chemistry and Nanomedicine, Institute of Molecular Medicine, State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China
| | - Jinyao Liu
- Shanghai Key Laboratory for Nucleic Acid Chemistry and Nanomedicine, Institute of Molecular Medicine, State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China.
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42
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Salmonella-based platform for efficient delivery of functional binding proteins to the cytosol. Commun Biol 2020; 3:342. [PMID: 32620833 PMCID: PMC7335062 DOI: 10.1038/s42003-020-1072-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2019] [Accepted: 06/11/2020] [Indexed: 12/23/2022] Open
Abstract
Protein-based affinity reagents (like antibodies or alternative binding scaffolds) offer wide-ranging applications for basic research and therapeutic approaches. However, whereas small chemical molecules efficiently reach intracellular targets, the delivery of macromolecules into the cytosol of cells remains a major challenge; thus cytosolic applications of protein-based reagents are rather limited. Some pathogenic bacteria have evolved a conserved type III secretion system (T3SS) which allows the delivery of effector proteins into eukaryotic cells. Here, we enhance the T3SS of an avirulent strain of Salmonella typhimurium to reproducibly deliver multiple classes of recombinant proteins into eukaryotic cells. The efficacy of the system is probed with both DARPins and monobodies to functionally inhibit the paradigmatic and largely undruggable RAS signaling pathway. Thus, we develop a bacterial secretion system for potent cytosolic delivery of therapeutic macromolecules. To develop a bacterial secretion system for cytosolic delivery of therapeutic macromolecules, Chabloz et al. improve an “effectorless” Salmonella strain and combine it with a plasmid modified to boost the secretion of proteins of interest. With this system, they demonstrate efficient translocation of functional DARPins and monobodies into the cytosol of different eukaryotic cells lines and successfully block the paradigmatic RAS pathway.
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43
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Yu X, Lin C, Yu J, Qi Q, Wang Q. Bioengineered Escherichia coli Nissle 1917 for tumour-targeting therapy. Microb Biotechnol 2020; 13:629-636. [PMID: 31863567 PMCID: PMC7111071 DOI: 10.1111/1751-7915.13523] [Citation(s) in RCA: 60] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2019] [Revised: 11/16/2019] [Accepted: 11/19/2019] [Indexed: 12/19/2022] Open
Abstract
Bacterial vectors, as microscopic living 'robotic factories', can be reprogrammed into microscopic living 'robotic factories', using a top-down bioengineering approach to produce and deliver anticancer agents. Most of the current research has focused on bacterial species such as Salmonella typhimurium or Clostridium novyi. However, Escherichia coli Nissle 1917 (EcN) is another promising candidate with probiotic properties. EcN offers increased applicability for cancer treatment with the development of new molecular biology and complete genome sequencing techniques. In this review, we discuss the genetics and physical properties of EcN. We also summarize and analyse recent studies regarding tumour therapy mediated by EcN. Many challenges remain in the development of more promising strategies for combatting cancer with EcN.
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Affiliation(s)
- Xiaoli Yu
- School of Public Health and ManagementWeifang Medical UniversityWeifang261053ShandongChina
| | - Changsen Lin
- State Key Laboratory of Microbial TechnologyNational Glycoengineering Research CenterShandong UniversityQingdao266237ShandongChina
- Affiliated Hospital of Shandong University of Traditional Chinese MedicineJinan250014ShandongChina
| | - Jing Yu
- Affiliated Hospital of Shandong University of Traditional Chinese MedicineJinan250014ShandongChina
| | - Qingsheng Qi
- State Key Laboratory of Microbial TechnologyNational Glycoengineering Research CenterShandong UniversityQingdao266237ShandongChina
| | - Qian Wang
- State Key Laboratory of Microbial TechnologyNational Glycoengineering Research CenterShandong UniversityQingdao266237ShandongChina
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44
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Guo Y, Chen Y, Liu X, Min JJ, Tan W, Zheng JH. Targeted cancer immunotherapy with genetically engineered oncolytic Salmonella typhimurium. Cancer Lett 2020; 469:102-110. [DOI: 10.1016/j.canlet.2019.10.033] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2019] [Revised: 09/29/2019] [Accepted: 10/21/2019] [Indexed: 12/31/2022]
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45
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Zhu C, Zhu Y, Pan H, Chen Z, Zhu Q. Current Progresses of Functional Nanomaterials for Imaging Diagnosis and Treatment of Melanoma. Curr Top Med Chem 2019; 19:2494-2506. [PMID: 31642783 DOI: 10.2174/1568026619666191023130524] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2019] [Revised: 09/29/2019] [Accepted: 09/30/2019] [Indexed: 12/16/2022]
Abstract
Melanoma is a malignant skin tumor that results in poor disease prognosis due to unsuccessful
treatment options. During the early stages of tumor progression, surgery is the primary approach
that assures a good outcome. However, in the presence of metastasis, melanoma hasbecome almost
immedicable, since the tumors can not be removed and the disease recurs easily in a short period of
time. However, in recent years, the combination of nanomedicine and chemotherapeutic drugs has offered
promising solutions to the treatment of late-stage melanoma. Extensive studies have demonstrated
that nanomaterials and their advanced applications can improve the efficacy of traditional chemotherapeutic
drugs in order to overcome the disadvantages, such as drug resistance, low drug delivery rate and
reduced targeting to the tumor tissue. In the present review, we summarized the latest progress in imaging
diagnosis and treatment of melanoma using functional nanomaterials, including polymers,
liposomes, metal nanoparticles, magnetic nanoparticles and carbon-based nanoparticles. These
nanoparticles are reported widely in melanoma chemotherapy, gene therapy, immunotherapy, photodynamic
therapy, and hyperthermia.
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Affiliation(s)
- Congcong Zhu
- Department of Pharmacy, Shanghai Dermatology Hospital, Tongji University School of Medicine, Shanghai 200443, China
| | - Yunjie Zhu
- Cellular Biomedicine Group Inc., Shanghai 201210, China
| | - Huijun Pan
- Department of Pharmacy, Shanghai Dermatology Hospital, Tongji University School of Medicine, Shanghai 200443, China
| | - Zhongjian Chen
- Department of Pharmacy, Shanghai Dermatology Hospital, Tongji University School of Medicine, Shanghai 200443, China
| | - Quangang Zhu
- Department of Pharmacy, Shanghai Dermatology Hospital, Tongji University School of Medicine, Shanghai 200443, China
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46
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Targeting Programmed Fusobacterium nucleatum Fap2 for Colorectal Cancer Therapy. Cancers (Basel) 2019; 11:cancers11101592. [PMID: 31635333 PMCID: PMC6827134 DOI: 10.3390/cancers11101592] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2019] [Revised: 10/13/2019] [Accepted: 10/14/2019] [Indexed: 12/18/2022] Open
Abstract
Colorectal patients generally have the maximum counts of Fusobacterium nucleatum (F. nucleatum) in tumors and elevate colorectal adenomas and carcinomas, which show the lowest rate of human survival. Hence, F. nucleatum is a diagnostic marker of colorectal cancer (CRC). Studies demonstrated that targeting fusobacterial Fap2 or polysaccharide of the host epithelium may decrease fusobacteria count in the CRC. Attenuated F. nucleatum-Fap2 prevents transmembrane signals and inhibits tumorigenesis inducing mechanisms. Hence, in this review, we hypothesized that application of genetically programmed fusobacterium can be skillful and thus reduce fusobacterium in the CRC. Genetically programmed F. nucleatum is a promising antitumor strategy.
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47
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Ng Ang A PN, Ebner JK, Plessner M, Aktories K, Schmidt G. Engineering Photorhabdus luminescens toxin complex (PTC) into a recombinant injection nanomachine. Life Sci Alliance 2019; 2:e201900485. [PMID: 31540947 PMCID: PMC6756610 DOI: 10.26508/lsa.201900485] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2019] [Revised: 09/10/2019] [Accepted: 09/10/2019] [Indexed: 12/15/2022] Open
Abstract
Engineering delivery systems for proteins and peptides into mammalian cells is an ongoing challenge for cell biological studies as well as for therapeutic approaches. Photorhabdus luminescens toxin complex (PTC) is a heterotrimeric protein complex able to deliver diverse protein toxins into mammalian cells. We engineered the syringe-like nanomachine for delivery of protein toxins from different species. In addition, we loaded the highly active copepod luciferase Metridia longa M-Luc7 for accurate quantification of injected molecules. We suggest that besides the probable size limitation, the charge of the cargo also influences the efficiency of packing and transport into mammalian cells. Our data show that the PTC constitutes a powerful system to inject recombinant proteins, peptides, and potentially, other molecules into mammalian cells. In addition, in contrast to other protein transporters based on pore formation, the closed, compact structure of the PTC may protect cargo from degradation.
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Affiliation(s)
- Peter Njenga Ng Ang A
- Institute for Experimental and Clinical Pharmacology and Toxicology, Faculty of Medicine, University of Freiburg, Freiburg, Germany
- Faculty of Biology, University of Freiburg, Freiburg, Germany
- Spemann Graduate School for Biology and Medicine, University of Freiburg, Freiburg, Germany
| | - Julia K Ebner
- Institute for Experimental and Clinical Pharmacology and Toxicology, Faculty of Medicine, University of Freiburg, Freiburg, Germany
- Faculty of Biology, University of Freiburg, Freiburg, Germany
- Spemann Graduate School for Biology and Medicine, University of Freiburg, Freiburg, Germany
| | - Matthias Plessner
- Institute for Experimental and Clinical Pharmacology and Toxicology, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Klaus Aktories
- Institute for Experimental and Clinical Pharmacology and Toxicology, Faculty of Medicine, University of Freiburg, Freiburg, Germany
- BIOSS Centre for Biological Signalling Studies, University of Freiburg, Freiburg, Germany
| | - Gudula Schmidt
- Institute for Experimental and Clinical Pharmacology and Toxicology, Faculty of Medicine, University of Freiburg, Freiburg, Germany
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48
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Tokunaga A, Sugiyama D, Maeda Y, Warner AB, Panageas KS, Ito S, Togashi Y, Sakai C, Wolchok JD, Nishikawa H. Selective inhibition of low-affinity memory CD8 + T cells by corticosteroids. J Exp Med 2019; 216:2701-2713. [PMID: 31537643 PMCID: PMC6888983 DOI: 10.1084/jem.20190738] [Citation(s) in RCA: 73] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2019] [Revised: 08/12/2019] [Accepted: 09/03/2019] [Indexed: 12/17/2022] Open
Abstract
Corticosteroids inhibit antitumor immune responses of immune checkpoint blockade in a dose- and timing-dependent manner. Memory CD8+ T cells with low TCR affinity are selectively suppressed by corticosteroids, necessitating careful and thoughtful corticosteroid use. Patients treated with immune checkpoint blockade (ICB) sometimes experience immune-related adverse events (irAEs), requiring immuno-suppressive drugs such as corticosteroids despite the possibility that immunosuppression may impair the antitumor effects of ICB. Here, we address the dilemma of using corticosteroids for the treatment of irAEs induced by ICB. ICB augments neoantigen-specific CD8+ T cell responses, resulting in tumor regression. In our model, simultaneous, but not late, administration of corticosteroids impaired antitumor responses with reduction of CD8+ T cell proliferation. Secondary challenge using tumors with/without the neoantigen showed selective progression in tumors lacking the neoantigen when corticosteroids were administered. Corticosteroids decreased low- but not high-affinity memory T cells by suppressing fatty acid metabolism essential for memory T cells. In a small cohort of human melanoma patients, overall survival was shorter after treatment with CTLA-4 blockade in patients who received early corticosteroids or had low tumor mutation burden. Together, low-affinity memory T cells are dominantly suppressed by corticosteroids, necessitating careful and thoughtful corticosteroid use.
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Affiliation(s)
- Akihiro Tokunaga
- Division of Cancer Immunology, Research Institute/Exploratory Oncology Research and Clinical Trial Center, National Cancer Center, Kashiwa, Japan.,Oncology Research and Development Unit, Kyowa Kirin Co., Ltd., Shizuoka, Japan
| | - Daisuke Sugiyama
- Department of Immunology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Yuka Maeda
- Division of Cancer Immunology, Research Institute/Exploratory Oncology Research and Clinical Trial Center, National Cancer Center, Kashiwa, Japan
| | - Allison Betof Warner
- Parker Institute for Cancer Immunotherapy, Swim Across America-Ludwig Collaborative Lab, Memorial Sloan-Kettering Cancer Center, New York, NY.,Weill Cornell Medical College, New York, NY
| | - Katherine S Panageas
- Departments of Epidemiology and Biostatistics, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Sachiko Ito
- Department of Immunology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Yosuke Togashi
- Division of Cancer Immunology, Research Institute/Exploratory Oncology Research and Clinical Trial Center, National Cancer Center, Kashiwa, Japan
| | - Chika Sakai
- Division of Cancer Immunology, Research Institute/Exploratory Oncology Research and Clinical Trial Center, National Cancer Center, Kashiwa, Japan
| | - Jedd D Wolchok
- Parker Institute for Cancer Immunotherapy, Swim Across America-Ludwig Collaborative Lab, Memorial Sloan-Kettering Cancer Center, New York, NY .,Weill Cornell Medical College, New York, NY
| | - Hiroyoshi Nishikawa
- Division of Cancer Immunology, Research Institute/Exploratory Oncology Research and Clinical Trial Center, National Cancer Center, Kashiwa, Japan .,Department of Immunology, Nagoya University Graduate School of Medicine, Nagoya, Japan
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49
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Development of bacteria as diagnostics and therapeutics by genetic engineering. J Microbiol 2019; 57:637-643. [DOI: 10.1007/s12275-019-9105-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2019] [Revised: 04/08/2019] [Accepted: 04/11/2019] [Indexed: 12/11/2022]
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50
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A Live Salmonella Vaccine Delivering PcrV through the Type III Secretion System Protects against Pseudomonas aeruginosa. mSphere 2019; 4:4/2/e00116-19. [PMID: 30996108 PMCID: PMC6470209 DOI: 10.1128/msphere.00116-19] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
The Gram-negative bacterium Pseudomonas aeruginosa is an important opportunistic pathogen that causes infections in cystic fibrosis and hospitalized patients. Therapeutic treatments are limited due to the emergence and spread of new antibiotic-resistant strains. In this context, the development of a vaccine is a priority. Here, we used an attenuated strain of Salmonella enterica serovar Typhimurium as a vehicle to express and deliver the Pseudomonas antigen PcrV. This vaccine induced the generation of specific antibodies in mice and protected them from lethal infections with P. aeruginosa. This is an important step toward the development of an effective vaccine for the prevention of infections caused by P. aeruginosa in humans. Pseudomonas aeruginosa is a common Gram-negative opportunistic pathogen that is intrinsically resistant to a wide range of antibiotics. The development of a broadly protective vaccine against P. aeruginosa remains a major challenge. Here, we used an attenuated strain of Salmonella enterica serovar Typhimurium as a vehicle to express P. aeruginosa antigens. A fusion between the S. enterica type III secretion effector protein SseJ and the P. aeruginosa antigen PcrV expressed under the control of the sseA promoter was translocated by Salmonella into host cells in vitro and elicited the generation of specific antibodies in mice. Mice immunized with attenuated Salmonella expressing this fusion had reduced bacterial loads in the spleens and lungs and lower serum levels of proinflammatory cytokines than control mice after P. aeruginosa infection. Importantly, immunized mice also showed significantly enhanced survival in this model. These results suggest that type III secretion effectors of S. enterica are appropriate carriers in the design of a live vaccine to prevent infections caused by P. aeruginosa. IMPORTANCE The Gram-negative bacterium Pseudomonas aeruginosa is an important opportunistic pathogen that causes infections in cystic fibrosis and hospitalized patients. Therapeutic treatments are limited due to the emergence and spread of new antibiotic-resistant strains. In this context, the development of a vaccine is a priority. Here, we used an attenuated strain of Salmonella enterica serovar Typhimurium as a vehicle to express and deliver the Pseudomonas antigen PcrV. This vaccine induced the generation of specific antibodies in mice and protected them from lethal infections with P. aeruginosa. This is an important step toward the development of an effective vaccine for the prevention of infections caused by P. aeruginosa in humans.
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