1
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Afaloniati H, Aindelis G, Spyridopoulou K, Lagou MK, Tsingotjidou A, Chlichlia K, Erdman SE, Poutahidis T, Angelopoulou K. Peri-weaning cholera toxin consumption suppresses chemically-induced carcinogenesis in mice. Int J Cancer 2024; 154:1097-1110. [PMID: 38095490 DOI: 10.1002/ijc.34816] [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: 08/29/2023] [Revised: 10/27/2023] [Accepted: 11/17/2023] [Indexed: 01/23/2024]
Abstract
Gastrointestinal bacteria are known to have an impact on local and systemic immunity, and consequently either promote or suppress cancer development. Following the notion that perinatal bacterial exposure might confer immune system competency for life, we investigated whether early-life administration of cholera-toxin (CT), a protein exotoxin of the small intestine pathogenic bacterium Vibrio cholerae, may shape local and systemic immunity to impart a protective effect against tumor development in epithelia distantly located from the gut. For that, newborn mice were orally treated with low non-pathogenic doses of CT and later challenged with the carcinogen 7,12-dimethylbenzanthracene (DMBA), known to cause mainly mammary, but also skin, lung and stomach cancer. Our results revealed that CT suppressed the overall incidence and multiplicity of tumors, with varying efficiencies among cancer types, and promoted survival. Harvesting mouse tissues at an earlier time-point (105 instead of 294 days), showed that CT does not prevent preneoplastic lesions per se but it rather hinders their evolution into tumors. CT pretreatment universally increased apoptosis in the cancer-prone mammary, lung and nonglandular stomach, and altered the expression of several cancer-related molecules. Moreover, CT had a long-term effect on immune system cells and factors, the most prominent being the systemic neutrophil decrease. Finally, CT treatment significantly affected gut bacterial flora composition, leading among others to a major shift from Clostridia to Bacilli class abundance. Overall, these results support the notion that early-life CT consumption is able to affect host's immune, microbiome and gene expression profiles toward the prevention of cancer.
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Affiliation(s)
- Hara Afaloniati
- Laboratory of Biochemistry and Toxicology, School of Veterinary Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Georgios Aindelis
- Department of Molecular Biology and Genetics, Democritus University of Thrace, University Campus Dragana, Alexandroupolis, Greece
| | - Katerina Spyridopoulou
- Department of Molecular Biology and Genetics, Democritus University of Thrace, University Campus Dragana, Alexandroupolis, Greece
| | - Maria K Lagou
- Laboratory of Pathology, School of Veterinary Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Anastasia Tsingotjidou
- Laboratory of Anatomy, Histology and Embryology, School of Veterinary Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Katerina Chlichlia
- Department of Molecular Biology and Genetics, Democritus University of Thrace, University Campus Dragana, Alexandroupolis, Greece
| | - Suzan E Erdman
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA
| | - Theofilos Poutahidis
- Laboratory of Pathology, School of Veterinary Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Katerina Angelopoulou
- Laboratory of Biochemistry and Toxicology, School of Veterinary Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, Thessaloniki, Greece
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2
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Zhou Y, Liu X, Gao W, Luo X, Lv J, Wang Y, Liu D. The role of intestinal flora on tumor immunotherapy: recent progress and treatment implications. Heliyon 2024; 10:e23919. [PMID: 38223735 PMCID: PMC10784319 DOI: 10.1016/j.heliyon.2023.e23919] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Revised: 12/08/2023] [Accepted: 12/15/2023] [Indexed: 01/16/2024] Open
Abstract
Immunotherapy, specifically immune checkpoint inhibitors, has emerged as a promising approach for treating malignant tumors. The gut, housing approximately 70 % of the body's immune cells, is abundantly populated with gut bacteria that actively interact with the host's immune system. Different bacterial species within the intestinal flora are in a delicate equilibrium and mutually regulate each other. However, when this balance is disrupted, pathogenic microorganisms can dominate, adversely affecting the host's metabolism and immunity, ultimately promoting the development of disease. Emerging researches highlight the potential of interventions such as fecal microflora transplantation (FMT) to improve antitumor immune response and reduce the toxicity of immunotherapy. These remarkable findings suggest the major role of intestinal flora in the development of cancer immunotherapy and led us to the hypothesis that intestinal flora transplantation may be a new breakthrough in modifying immunotherapy side effects.
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Affiliation(s)
- Yimin Zhou
- School of Basic Medical Sciences, Shandong University, Jinan 250011, China
| | - Xiangdong Liu
- Department of Clinical Laboratory, Shandong Provincial Hospital Affiliated to Shandong University, Jinan 250021, China
- Department of Clinical Laboratory, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan 250021, China
| | - Wei Gao
- School of Basic Medical Sciences, Shandong University, Jinan 250011, China
| | - Xin Luo
- School of Basic Medical Sciences, Shandong University, Jinan 250011, China
| | - Junying Lv
- Department of Clinical Laboratory, Shandong Provincial Hospital Affiliated to Shandong University, Jinan 250021, China
- Department of Clinical Laboratory, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan 250021, China
| | - Yunshan Wang
- Department of Clinical Laboratory, Shandong Provincial Hospital Affiliated to Shandong University, Jinan 250021, China
- Department of Clinical Laboratory, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan 250021, China
| | - Duanrui Liu
- Department of Clinical Laboratory, Shandong Provincial Hospital Affiliated to Shandong University, Jinan 250021, China
- Department of Clinical Laboratory, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan 250021, China
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3
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Yan Q, Jia S, Li D, Yang J. The role and mechanism of action of microbiota-derived short-chain fatty acids in neutrophils: From the activation to becoming potential biomarkers. Biomed Pharmacother 2023; 169:115821. [PMID: 37952355 DOI: 10.1016/j.biopha.2023.115821] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2023] [Revised: 10/27/2023] [Accepted: 10/31/2023] [Indexed: 11/14/2023] Open
Abstract
Short-chain fatty acids (SCFAs), such as acetate, propionate, and butyrate, have emerged as critical mediators in the communication between the human microbiota and its host. As the first responder to the inflammatory site, neutrophils play an important role in protecting the host against bacterial infections. Recent investigations revealed that SCFAs generated from microbiota influence various neutrophil activities, including activation, migration, and generation of mediators of inflammatory processes. SCFAs have also been demonstrated to exhibit potential therapeutic benefits in a variety of disorders related to neutrophil dysfunction, including inflammatory bowel disease, viral infectious disorders, and cancer. This study aims to examine the molecular processes behind the complicated link between SCFAs and neutrophils, as well as their influence on neutrophil-driven inflammatory disorders. In addition, we will also provide an in-depth review of current research on the diagnostic and therapeutic value of SCFAs as possible biomarkers for neutrophil-related diseases.
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Affiliation(s)
- Qingzhu Yan
- Department of Ultrasound Medicine, the Second Hospital of Jilin University, Changchun 130000, China
| | - Shengnan Jia
- Digestive Diseases Center, Department of Hepatopancreatobiliary Medicine, the Second Hospital of Jilin University, Changchun 130000, China
| | - Dongfu Li
- Digestive Diseases Center, Department of Hepatopancreatobiliary Medicine, the Second Hospital of Jilin University, Changchun 130000, China.
| | - Junling Yang
- Department of Respiratory Medicine, the Second Hospital of Jilin University, Changchun 130000, China.
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4
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Tamagawa H, Tamagawa A, Aoyama T, Hashimoto I, Maezawa Y, Hara K, Kato A, Kamiya N, Otani K, Numata M, Kazama K, Morita J, Tanabe M, Onuma S, Cho H, Sawazaki S, Ohshima T, Yukawa N, Mitsudo K, Saito A, Rino Y. Influence of the Oral Health Assessment Tool Score on Survival of Patients With Esophageal Cancer. In Vivo 2023; 37:2253-2259. [PMID: 37652503 PMCID: PMC10500491 DOI: 10.21873/invivo.13327] [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: 04/26/2023] [Revised: 06/05/2023] [Accepted: 06/06/2023] [Indexed: 09/02/2023]
Abstract
BACKGROUND/AIM We investigated the influence of the preoperative Oral Health Assessment Tool (OHAT) score on the outcomes of patients with esophageal cancer after curative surgery. PATIENTS AND METHODS This study included 90 patients with esophageal cancer who underwent curative surgery and who were screened with the OHAT between 2008 and 2021. The OHAT consists of eight categories with three possible scores. The risk factors for 5-year overall survival (OS) and recurrence-free survival (RFS) were identified. RESULTS Patients were divided into healthy (n=42) and unhealthy (n=48) groups. The OHAT score was identified as a significant risk factor for postoperative pneumonia (11.9% vs. 43.8%, p=0.001) and postoperative hospital stay (20.5 days vs. 50.1 days, p=0.042). The 5-year OS rate after surgery was 71.2% in the healthy group and 43.2% in the unhealthy group, which was a significant difference (p=0.015). A multivariate analysis showed that a high OHAT score was a significant independent factor for 5-year OS (p=0.034). CONCLUSION The OHAT score was a useful prognostic marker in patients who underwent curative surgery for esophageal cancer. To improve the oncological outcomes of patients with esophageal cancer, it is necessary to carefully plan perioperative oral/dental care using the OHAT score.
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Affiliation(s)
- Hiroshi Tamagawa
- Department of Surgery, Yokohama City University, Yokohama, Japan
| | - Ayako Tamagawa
- Department of Surgery, Yokohama City University, Yokohama, Japan
| | - Toru Aoyama
- Department of Surgery, Yokohama City University, Yokohama, Japan;
| | - Itaru Hashimoto
- Department of Surgery, Yokohama City University, Yokohama, Japan
| | - Yukio Maezawa
- Department of Surgery, Yokohama City University, Yokohama, Japan
| | - Kentaro Hara
- Department of Surgery, Yokohama City University, Yokohama, Japan
| | - Aya Kato
- Department of Surgery, Yokohama City University, Yokohama, Japan
| | - Natsumi Kamiya
- Department of Surgery, Yokohama City University, Yokohama, Japan
| | - Kazuki Otani
- Department of Surgery, Yokohama City University, Yokohama, Japan
| | - Masakatsu Numata
- Department of Surgery, Yokohama City University, Yokohama, Japan
| | - Keisuke Kazama
- Department of Surgery, Yokohama City University, Yokohama, Japan
| | - Jyunya Morita
- Department of Surgery, Yokohama City University, Yokohama, Japan
| | - Mie Tanabe
- Department of Surgery, Yokohama City University, Yokohama, Japan
| | - Shizune Onuma
- Department of Surgery, Yokohama City University, Yokohama, Japan
| | - Haruhiko Cho
- Department of Surgery, Yokohama City University, Yokohama, Japan
| | - Sho Sawazaki
- Department of Surgery, Yokohama City University, Yokohama, Japan
| | - Takashi Ohshima
- Department of Gastroenterological Surgery, Kanagawa Cancer Hospital, Yokohama, Japan
| | - Norio Yukawa
- Department of Surgery, Yokohama City University, Yokohama, Japan
| | - Kenji Mitsudo
- Department of Oral and Maxillofacial Surgery, Yokohama City University, Yokohama, Japan
| | - Aya Saito
- Department of Surgery, Yokohama City University, Yokohama, Japan
| | - Yasushi Rino
- Department of Surgery, Yokohama City University, Yokohama, Japan
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5
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Xue X, Li R, Chen Z, Li G, Liu B, Guo S, Yue Q, Yang S, Xie L, Zhang Y, Zhao J, Tan R. The role of the symbiotic microecosystem in cancer: gut microbiota, metabolome, and host immunome. Front Immunol 2023; 14:1235827. [PMID: 37691931 PMCID: PMC10484231 DOI: 10.3389/fimmu.2023.1235827] [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: 06/06/2023] [Accepted: 07/12/2023] [Indexed: 09/12/2023] Open
Abstract
The gut microbiota is not just a simple nutritional symbiosis that parasitizes the host; it is a complex and dynamic ecosystem that coevolves actively with the host and is involved in a variety of biological activities such as circadian rhythm regulation, energy metabolism, and immune response. The development of the immune system and immunological functions are significantly influenced by the interaction between the host and the microbiota. The interactions between gut microbiota and cancer are of a complex nature. The critical role that the gut microbiota plays in tumor occurrence, progression, and treatment is not clear despite the already done research. The development of precision medicine and cancer immunotherapy further emphasizes the importance and significance of the question of how the microbiota takes part in cancer development, progression, and treatment. This review summarizes recent literature on the relationship between the gut microbiome and cancer immunology. The findings suggest the existence of a "symbiotic microecosystem" formed by gut microbiota, metabolome, and host immunome that is fundamental for the pathogenesis analysis and the development of therapeutic strategies for cancer.
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Affiliation(s)
- Xiaoyu Xue
- School of Pharmacy, Southwest Medical University, Luzhou, China
- Sichuan Institute for Translational Chinese Medicine, Sichuan Academy of Chinese Medical Sciences, State Key Laboratory of Quality Evaluation of Traditional Chinese Medicine, Sichuan Engineering Technology Research Center of Genuine Regional Drug, Sichuan Provincial Engineering Research Center of Formation Principle and Quality Evaluation of Genuine Medicinal Materials, Translational Chinese Medicine Key Laboratory of Sichuan Province, Chengdu, China
| | - Rui Li
- Department of Radiation Oncology, Radiation Oncology Key Laboratory of Sichuan Province, Sichuan Clinical Research Center for Cancer, Sichuan Cancer Hospital and Institute, Sichuan Cancer Center, Affiliated Cancer Hospital of University of Electronic Science and Technology of China, Chengdu, China
| | - Zhenni Chen
- Sichuan Institute for Translational Chinese Medicine, Sichuan Academy of Chinese Medical Sciences, State Key Laboratory of Quality Evaluation of Traditional Chinese Medicine, Sichuan Engineering Technology Research Center of Genuine Regional Drug, Sichuan Provincial Engineering Research Center of Formation Principle and Quality Evaluation of Genuine Medicinal Materials, Translational Chinese Medicine Key Laboratory of Sichuan Province, Chengdu, China
- College of Food and Biological Engineering, Chengdu University, Chengdu, China
| | - Guiyu Li
- Sichuan Institute for Translational Chinese Medicine, Sichuan Academy of Chinese Medical Sciences, State Key Laboratory of Quality Evaluation of Traditional Chinese Medicine, Sichuan Engineering Technology Research Center of Genuine Regional Drug, Sichuan Provincial Engineering Research Center of Formation Principle and Quality Evaluation of Genuine Medicinal Materials, Translational Chinese Medicine Key Laboratory of Sichuan Province, Chengdu, China
| | - Bisheng Liu
- Department of Radiation Oncology, Radiation Oncology Key Laboratory of Sichuan Province, Sichuan Clinical Research Center for Cancer, Sichuan Cancer Hospital and Institute, Sichuan Cancer Center, Affiliated Cancer Hospital of University of Electronic Science and Technology of China, Chengdu, China
| | - Shanshan Guo
- Sichuan Institute for Translational Chinese Medicine, Sichuan Academy of Chinese Medical Sciences, State Key Laboratory of Quality Evaluation of Traditional Chinese Medicine, Sichuan Engineering Technology Research Center of Genuine Regional Drug, Sichuan Provincial Engineering Research Center of Formation Principle and Quality Evaluation of Genuine Medicinal Materials, Translational Chinese Medicine Key Laboratory of Sichuan Province, Chengdu, China
| | - Qianhua Yue
- Sichuan Institute for Translational Chinese Medicine, Sichuan Academy of Chinese Medical Sciences, State Key Laboratory of Quality Evaluation of Traditional Chinese Medicine, Sichuan Engineering Technology Research Center of Genuine Regional Drug, Sichuan Provincial Engineering Research Center of Formation Principle and Quality Evaluation of Genuine Medicinal Materials, Translational Chinese Medicine Key Laboratory of Sichuan Province, Chengdu, China
| | - Siye Yang
- Sichuan Institute for Translational Chinese Medicine, Sichuan Academy of Chinese Medical Sciences, State Key Laboratory of Quality Evaluation of Traditional Chinese Medicine, Sichuan Engineering Technology Research Center of Genuine Regional Drug, Sichuan Provincial Engineering Research Center of Formation Principle and Quality Evaluation of Genuine Medicinal Materials, Translational Chinese Medicine Key Laboratory of Sichuan Province, Chengdu, China
| | - Linlin Xie
- Traditional Chinese Medicine Hospital Affiliated to Southwest Medical University, Classical Chinese Medicine Diagnosis and Treatment Center, Luzhou, China
| | - Yiguan Zhang
- School of Pharmacy, Southwest Medical University, Luzhou, China
- Sichuan Institute for Translational Chinese Medicine, Sichuan Academy of Chinese Medical Sciences, State Key Laboratory of Quality Evaluation of Traditional Chinese Medicine, Sichuan Engineering Technology Research Center of Genuine Regional Drug, Sichuan Provincial Engineering Research Center of Formation Principle and Quality Evaluation of Genuine Medicinal Materials, Translational Chinese Medicine Key Laboratory of Sichuan Province, Chengdu, China
| | - Junning Zhao
- Sichuan Institute for Translational Chinese Medicine, Sichuan Academy of Chinese Medical Sciences, State Key Laboratory of Quality Evaluation of Traditional Chinese Medicine, Sichuan Engineering Technology Research Center of Genuine Regional Drug, Sichuan Provincial Engineering Research Center of Formation Principle and Quality Evaluation of Genuine Medicinal Materials, Translational Chinese Medicine Key Laboratory of Sichuan Province, Chengdu, China
| | - Ruirong Tan
- Sichuan Institute for Translational Chinese Medicine, Sichuan Academy of Chinese Medical Sciences, State Key Laboratory of Quality Evaluation of Traditional Chinese Medicine, Sichuan Engineering Technology Research Center of Genuine Regional Drug, Sichuan Provincial Engineering Research Center of Formation Principle and Quality Evaluation of Genuine Medicinal Materials, Translational Chinese Medicine Key Laboratory of Sichuan Province, Chengdu, China
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6
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Huang JT, Mao YQ. The impact of the microbiome in cancer: Targeting metabolism of cancer cells and host. Front Oncol 2022; 12:1029033. [PMID: 36465375 PMCID: PMC9708872 DOI: 10.3389/fonc.2022.1029033] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2022] [Accepted: 10/27/2022] [Indexed: 08/10/2023] Open
Abstract
Abnormal metabolic alterations of cancer cells and the host play critical roles in the occurrence and development of tumors. Targeting cancer cells and host metabolism can provide novel diagnosis indicators and intervention targets for tumors. In recent years, it has been found that gut microbiota is involved in the metabolism of the host and cancer cells. Increasingly, gut microbiome and their metabolites have been demonstrated great influence on the tumor formation, prognosis and treatment. Specific gut microbial composition and metabolites are associated with the status of tumor in the host. Interventions on the gut microbiota can exert the protective effects on the tumor, through the manipulation of structure and its related metabolites. This may be the new approach to improve the efficacy of tumor prevention and treatment. Here, we discuss the effects and the underlying mechanisms of gut microbiota and microbial-derived metabolites in tumor progression and treatment.
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Affiliation(s)
- Jia-Ting Huang
- Center for Traditional Chinese Medicine and Gut Microbiota, Minhang Hospital, Fudan University, Shanghai, China
- Institute of Fudan-Minhang Academic Health System, Minhang Hospital, Fudan University, Shanghai, China
| | - Yu-Qin Mao
- Center for Traditional Chinese Medicine and Gut Microbiota, Minhang Hospital, Fudan University, Shanghai, China
- Institute of Fudan-Minhang Academic Health System, Minhang Hospital, Fudan University, Shanghai, China
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7
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Wilczyński JR, Nowak M. Cancer Immunoediting: Elimination, Equilibrium, and Immune Escape in Solid Tumors. EXPERIENTIA SUPPLEMENTUM (2012) 2022; 113:1-57. [PMID: 35165859 DOI: 10.1007/978-3-030-91311-3_1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Emphasizing the dynamic processes between cancer and host immune system, the initially discovered concept of cancer immunosurveillance has been replaced by the current concept of cancer immunoediting consisting of three phases: elimination, equilibrium, and escape. Solid tumors composed of both cancer and host stromal cells are an example how the three phases of cancer immunoediting functionally evolve and how tumor shaped by the host immune system gets finally resistant phenotype. The elimination, equilibrium, and escape have been described in this chapter in details, including the role of immune surveillance, cancer dormancy, disruption of the antigen-presenting machinery, tumor-infiltrating immune cells, resistance to apoptosis, as well as the function of tumor stroma, microvesicles, exosomes, and inflammation.
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Affiliation(s)
- Jacek R Wilczyński
- Department of Gynecologic Surgery and Gynecologic Oncology, Medical University of Lodz, Lodz, Poland.
| | - Marek Nowak
- Department of Operative Gynecology and Gynecologic Oncology, Polish Mother's Memorial Hospital-Research Institute, Lodz, Poland
- Department of Operative and Endoscopic Gynecology, Medical University of Lodz, Lodz, Poland
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8
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Kwiatkowska I, Hermanowicz JM, Przybyszewska-Podstawka A, Pawlak D. Not Only Immune Escape-The Confusing Role of the TRP Metabolic Pathway in Carcinogenesis. Cancers (Basel) 2021; 13:2667. [PMID: 34071442 PMCID: PMC8198784 DOI: 10.3390/cancers13112667] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2021] [Revised: 05/20/2021] [Accepted: 05/26/2021] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND The recently discovered phenomenon that cancer cells can avoid immune response has gained scientists' interest. One of the pathways involved in this process is tryptophan (TRP) metabolism through the kynurenine pathway (KP). Individual components involved in TRP conversion seem to contribute to cancerogenesis both through a direct impact on cancer cells and the modulation of immune cell functionality. Due to this fact, this pathway may serve as a target for immunotherapy and attempts are being made to create novel compounds effective in cancer treatment. However, the results obtained from clinical trials are not satisfactory, which raises questions about the exact role of KP elements in tumorigenesis. An increasing number of experiments reveal that TRP metabolites may either be tumor promoters and suppressors and this is why further research in this field is highly needed. The aim of this study is to present KP as a modulator of cancer development through multiple mechanisms and to point to its ambiguity, which may be a reason for failures in treatment based on the inhibition of tryptophan metabolism.
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Affiliation(s)
- Iwona Kwiatkowska
- Department of Pharmacodynamics, Medical University of Bialystok, Mickiewicza 2C, 15-222 Bialystok, Poland; (J.M.H.); (D.P.)
| | - Justyna Magdalena Hermanowicz
- Department of Pharmacodynamics, Medical University of Bialystok, Mickiewicza 2C, 15-222 Bialystok, Poland; (J.M.H.); (D.P.)
- Department of Clinical Pharmacy, Medical University of Bialystok, Mickiewicza 2C, 15-222 Bialystok, Poland
| | | | - Dariusz Pawlak
- Department of Pharmacodynamics, Medical University of Bialystok, Mickiewicza 2C, 15-222 Bialystok, Poland; (J.M.H.); (D.P.)
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9
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Abstract
In recent years, the consumption of over-the-counter probiotics to promote health has grown rapidly worldwide and become an independent industry. In medicine, various studies have demonstrated that probiotics can help improve the immune system and intestinal health. They are usually safe, but in some rare cases, they may cause concerning adverse reactions. Although the use of probiotics has been widely popularized in the public, the results of many probiotic clinical trials are contradictory. Particularly in cancer patients, the feasibility of probiotic management providing benefits by targeting cancer and lessening anticancer side effects requires further investigation. This review summarizes the interactions between probiotics and the host as well as current knowledge on the pros and cons of utilizing probiotics in cancer patients.
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Affiliation(s)
- Ke Lu
- Department of Pediatrics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Shanwu Dong
- Department of Pediatrics, Wuhan Fourth Hospital, Wuhan, China.,Department of Pediatrics, Puai Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xiaoyan Wu
- Department of Pediatrics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Runming Jin
- Department of Pediatrics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Hongbo Chen
- Department of Pediatrics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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10
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Qiu Q, Lin Y, Ma Y, Li X, Liang J, Chen Z, Liu K, Huang Y, Luo H, Huang R, Luo L. Exploring the Emerging Role of the Gut Microbiota and Tumor Microenvironment in Cancer Immunotherapy. Front Immunol 2021; 11:612202. [PMID: 33488618 PMCID: PMC7817884 DOI: 10.3389/fimmu.2020.612202] [Citation(s) in RCA: 59] [Impact Index Per Article: 19.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Accepted: 11/23/2020] [Indexed: 12/15/2022] Open
Abstract
The tumor microenvironment (TME) is a complex ecosystem, which includes many different types of cells, abnormal vascular systems, and immunosuppressive cytokines. TME serves an important function in tumor tolerance and escapes from immune surveillance leading to tumor progression. Indeed, there is increasing evidence that gut microbiome is associated with cancer in a variety of ways, as specific microbial signatures are known to promote cancer development and influence safety, tolerability, and efficacy of therapies. Studies over the past five years have shown that the composition of the intestinal microbiota has a significant impact on the efficacy of anticancer immunosurveillance, which contribute to the therapeutic activity of cancer immunotherapies based on targeting cytotoxic T lymphocyte protein 4 (CTLA-4) or programmed cell death protein 1 (PD-1)-programmed cell death 1 ligand 1 (PD-L1) axis. In this review, we mainly discuss the impact of TME on cancer and immunotherapy through immune-related mechanisms. We subsequently discuss the influence of gut microbiota and its metabolites on the host immune system and the formation of TME. In addition, this review also summarizes the latest research on the role of gut microbiota in cancer immunotherapy.
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Affiliation(s)
- Qin Qiu
- Graduate School, Guangdong Medical University, Zhanjiang, China
| | - Yuqi Lin
- Guangdong Provincial Key Laboratory of Food Quality and Safety, College of Food Science, South China Agricultural University, Guangzhou, China
| | - Yucui Ma
- The Marine Biomedical Research Institute, Guangdong Medical University, Zhanjiang, China
| | - Xiaoling Li
- Animal Experiment Center, Guangdong Medical University, Zhanjiang, China
| | - Juan Liang
- Graduate School, Guangdong Medical University, Zhanjiang, China
| | - Zhiyan Chen
- The First Clinical College, Guangdong Medical University, Zhanjiang, China
| | - Kaifeng Liu
- The First Clinical College, Guangdong Medical University, Zhanjiang, China
| | - Yuge Huang
- Department of Pediatrics, The Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| | - Hui Luo
- The Marine Biomedical Research Institute, Guangdong Medical University, Zhanjiang, China
| | - Riming Huang
- Guangdong Provincial Key Laboratory of Food Quality and Safety, College of Food Science, South China Agricultural University, Guangzhou, China
| | - Lianxiang Luo
- The Marine Biomedical Research Institute, Guangdong Medical University, Zhanjiang, China.,The Marine Biomedical Research Institute of Guangdong Zhanjiang, Zhanjiang, China.,Southern Marine Science and Engineering Guangdong Laboratory (Zhanjiang), Zhanjiang, China
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11
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Seliger B, Massa C, Yang B, Bethmann D, Kappler M, Eckert AW, Wickenhauser C. Immune Escape Mechanisms and Their Clinical Relevance in Head and Neck Squamous Cell Carcinoma. Int J Mol Sci 2020; 21:ijms21197032. [PMID: 32987799 PMCID: PMC7582858 DOI: 10.3390/ijms21197032] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Revised: 09/22/2020] [Accepted: 09/22/2020] [Indexed: 12/25/2022] Open
Abstract
Immunotherapy has been recently approved for the treatment of relapsed and metastatic human papilloma virus (HPV) positive and negative head and neck squamous cell carcinoma (HNSCC). However, the response of patients is limited and the overall survival remains short with a low rate of long-term survivors. There exists growing evidence that complex and partially redundant immune escape mechanisms play an important role for the low efficacy of immunotherapies in this disease. These are caused by diverse complex processes characterized by (i) changes in the expression of immune modulatory molecules in tumor cells, (ii) alterations in the frequency, composition and clonal expansion of immune cell subpopulations in the tumor microenvironment and peripheral blood leading to reduced innate and adaptive immune responses, (iii) impaired homing of immune cells to the tumor site as well as (iv) the presence of immune suppressive soluble and physical factors in the tumor microenvironment. We here summarize the major immune escape strategies of HNSCC lesions, highlight pathways, and molecular targets that help to attenuate HNSCC-induced immune tolerance, affect the selection and success of immunotherapeutic approaches to overcome resistance to immunotherapy by targeting immune escape mechanisms and thus improve the HNSCC patients’ outcome.
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Affiliation(s)
- Barbara Seliger
- Institute of Medical Immunology, Martin Luther University Halle-Wittenberg, 06112 Halle, Germany; (C.M.); (B.Y.)
- Fraunhofer Institute of Cell Therapy and Immunology, 04103 Leipzig, Germany
- Correspondence:
| | - Chiara Massa
- Institute of Medical Immunology, Martin Luther University Halle-Wittenberg, 06112 Halle, Germany; (C.M.); (B.Y.)
| | - Bo Yang
- Institute of Medical Immunology, Martin Luther University Halle-Wittenberg, 06112 Halle, Germany; (C.M.); (B.Y.)
| | - Daniel Bethmann
- Institute of Pathology, Martin Luther University Halle-Wittenberg, 06112 Halle, Germany; (D.B.); (C.W.)
| | - Matthias Kappler
- Department of Oral and Maxillofacial Plastic Surgery, Martin Luther University Halle-Wittenberg, 06120 Halle (Saale), Germany; (M.K.); (A.W.E.)
| | - Alexander Walter Eckert
- Department of Oral and Maxillofacial Plastic Surgery, Martin Luther University Halle-Wittenberg, 06120 Halle (Saale), Germany; (M.K.); (A.W.E.)
- Klinik für Mund-, Kiefer- und Plastische Gesichtschirurgie, Universitätsklinik der Paracelsus Medizinischen Privatuniversität; 90471 Nürnberg, Germany
| | - Claudia Wickenhauser
- Institute of Pathology, Martin Luther University Halle-Wittenberg, 06112 Halle, Germany; (D.B.); (C.W.)
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12
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Fujiwara N, Kitamura N, Yoshida K, Yamamoto T, Ozaki K, Kudo Y. Involvement of Fusobacterium Species in Oral Cancer Progression: A Literature Review Including Other Types of Cancer. Int J Mol Sci 2020; 21:ijms21176207. [PMID: 32867334 PMCID: PMC7504605 DOI: 10.3390/ijms21176207] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Revised: 08/20/2020] [Accepted: 08/25/2020] [Indexed: 02/06/2023] Open
Abstract
Chronic inflammation caused by infections has been suggested to be one of the most important cause of cancers. It has recently been shown that there is correlation between intestinal bacteria and cancer development including metastasis. As over 700 bacterial species exist in an oral cavity, it has been concerning that bacterial infection may cause oral cancer. However, the role of bacteria regarding tumorigenesis of oral cancer remains unclear. Several papers have shown that Fusobacterium species deriving the oral cavities, especially, play a crucial role for the development of colorectal and esophageal cancer. F. nucleatum is a well-known oral bacterium involved in formation of typical dental plaque on human teeth and causing periodontal diseases. The greatest characteristic of F. nucleatum is its ability to adhere to various bacteria and host cells. Interestingly, F. nucleatum is frequently detected in oral cancer tissues. Moreover, detection of F. nucleatum is correlated with the clinical stage of oral cancer. Although the detailed mechanism is still unclear, Fusobacterium species have been suggested to be associated with cell adhesion, tumorigenesis, epithelial-to-mesenchymal transition, inflammasomes, cell cycle, etc. in oral cancer. In this review, we introduce the reports focused on the association of Fusobacterium species with cancer development and progression including oral, esophageal, and colon cancers.
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Affiliation(s)
- Natsumi Fujiwara
- Department of Oral Health Care Promotion, Tokushima University Graduate School of Biomedical Sciences, 3-18-15 Kuramoto, Tokushima 770-8504, Japan; (N.F.); (K.O.)
- Department of Oral Biology & Diagnostic Sciences, The Dental College of Georgia, Augusta University, 1120 15th Street, Augusta, GA 30912, USA
| | - Naoya Kitamura
- Department of Oral and Maxillofacial Surgery, Kochi Medical School, Kochi University, Kohasu, Oko-cho, Nankoku 783-8505, Japan; (N.K.); (T.Y.)
| | - Kaya Yoshida
- Department of Oral Health Care Education, Tokushima University Graduate School of Biomedical Sciences, 3-18-15 Kuramoto, Tokushima 770-8504, Japan;
| | - Tetsuya Yamamoto
- Department of Oral and Maxillofacial Surgery, Kochi Medical School, Kochi University, Kohasu, Oko-cho, Nankoku 783-8505, Japan; (N.K.); (T.Y.)
| | - Kazumi Ozaki
- Department of Oral Health Care Promotion, Tokushima University Graduate School of Biomedical Sciences, 3-18-15 Kuramoto, Tokushima 770-8504, Japan; (N.F.); (K.O.)
| | - Yasusei Kudo
- Department of Oral Bioscience, Tokushima University Graduate School of Biomedical Sciences, 3-18-15 Kuramoto, Tokushima 770-8504, Japan
- Correspondence: ; Tel.: +81-88-633-7325
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13
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Koike K, Dehari H, Ogi K, Shimizu S, Nishiyama K, Sonoda T, Sasaki T, Sasaya T, Tsuchihashi K, Hasegawa T, Torigoe T, Hiratsuka H, Miyazaki A. Prognostic value of FoxP3 and CTLA-4 expression in patients with oral squamous cell carcinoma. PLoS One 2020; 15:e0237465. [PMID: 32785290 PMCID: PMC7423125 DOI: 10.1371/journal.pone.0237465] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2020] [Accepted: 07/27/2020] [Indexed: 12/15/2022] Open
Abstract
Background Tumor-infiltrating lymphocytes include tumor-reactive lymphocytes and regulatory T-cells. However, the prognostic value of tumor-infiltrating lymphocytes in oral squamous cell carcinoma (OSCC) remains unclear. Methods We used immunohistochemistry to evaluate the presence of tumor-infiltrating FoxP3⁺ T-cells and CTLA-4⁺ cells in four distinct histological compartments (tumor parenchyma and stroma at the tumor center, and parenchyma and stroma at the invasive front) and assessed the association between the prevalence of these cells and the histopathological status of 137 patients with OSCC. Results Five-year overall survival, disease-specific survival, and recurrence-free survival were favorable in patients with high numbers of FoxP3⁺ T-cells in the parenchyma of the invasive front. Recurrence-free survival and metastasis-free survival were decreased in patients with high numbers of CTLA-4⁺ cells in the parenchyma of the invasive front. Conclusions The presence of FoxP3⁺ T-cells in the parenchyma of the invasive front may be a useful prognostic factor. Our results indicate that FoxP3⁺ T-cells may exert site-specific anti-tumor effects but may not play an immunosuppressive role in OSCC. In addition, our results suggest that CTLA-4+ cells suppress the function of FoxP3+ T-cells and promote anti‐tumor immunity in OSCC.
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Affiliation(s)
- Kazushige Koike
- Department of Oral Surgery, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Hironari Dehari
- Department of Oral Surgery, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Kazuhiro Ogi
- Department of Oral Surgery, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Shota Shimizu
- Department of Oral Surgery, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Koyo Nishiyama
- Department of Oral Surgery, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Tomoko Sonoda
- Department of Public Health, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Takanori Sasaki
- Department of Oral Surgery, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Takashi Sasaya
- Department of Oral Surgery, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Kei Tsuchihashi
- Department of Oral Surgery, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Tadashi Hasegawa
- Department of Surgical Pathology, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Toshihiko Torigoe
- Department of Pathology, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Hiroyoshi Hiratsuka
- Department of Oral Surgery, Sapporo Medical University School of Medicine, Sapporo, Japan
- Department of Oral and Maxillo-Facial Surgery, Toya Kyokai Hospital, Toyako-cho, Abuta-gun, Japan
| | - Akihiro Miyazaki
- Department of Oral Surgery, Sapporo Medical University School of Medicine, Sapporo, Japan
- * E-mail:
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14
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Wang Z, Hua W, Li C, Chang H, Liu R, Ni Y, Sun H, Li Y, Wang X, Hou M, Liu Y, Xu Z, Ji M. Protective Role of Fecal Microbiota Transplantation on Colitis and Colitis-Associated Colon Cancer in Mice Is Associated With Treg Cells. Front Microbiol 2019; 10:2498. [PMID: 31798539 PMCID: PMC6861520 DOI: 10.3389/fmicb.2019.02498] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2019] [Accepted: 10/16/2019] [Indexed: 12/18/2022] Open
Abstract
Colitis-associated cancer (CAC) is the most serious outcome of inflammatory bowel disease, which has an alteration of commensal intestinal microbiota. However, the role of intestinal microbiota on CAC progression is not well-understood. Fecal microbiota transplantation (FMT) was used for treating murine azoxymethane–dextran sodium sulfate (AOM-DSS) model of CAC. Composition of gut microbiota during FMT treatment was analyzed. RT-PCR and ELISA were used to detect the inflammatory factors, and immunofluorescence was applied to examine the phospho-nuclear factor (NF)-κB p65/p100 and Ki67-positive cells in the colons. In addition, flow cytometry was performed to analyze the immune cell after FMT treatment. Rehabilitation of the intestinal microbiota by FMT restored both the ratio and diversity of microbiota during CAC progression. Remarkably, a favorable morphometric outcome characterized by decreased tumor load and size was observed in CAC mice with FMT treatment. In addition, an anti-inflammatory function of FMT was demonstrated by decreasing pro-inflammatory factors but increasing anti-inflammatory factors through inhibiting canonical NF-κB activity and cellular proliferation in colons of CAC mice. The expression of CD4+CD25+Foxp3+ regulatory T cells (Tregs) was significantly increased after FMT treatment in CAC mice, but not T helper (Th)1/2/17 cells. Our study aids in the understanding of CAC pathogenesis and reveals a previously unrecognized role for FMT in the treatment of CAC through restoring the intestinal microbiota and inducing regulatory T cells.
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Affiliation(s)
- Zitao Wang
- Department of Pathogen Biology, Nanjing Medical University, Nanjing, China
| | - Wenjie Hua
- Department of Pathogen Biology, Nanjing Medical University, Nanjing, China
| | - Chen Li
- Department of Pathogen Biology, Nanjing Medical University, Nanjing, China
| | - Hao Chang
- Department of Pathogen Biology, Nanjing Medical University, Nanjing, China
| | - Ran Liu
- Department of Pathogen Biology, Nanjing Medical University, Nanjing, China
| | - Yangyue Ni
- Department of Pathogen Biology, Nanjing Medical University, Nanjing, China
| | - Hongzhi Sun
- Department of Pathogen Biology, Nanjing Medical University, Nanjing, China
| | - Yangyang Li
- Department of Endocrinology, The Affiliated Sir Run Run Hospital of Nanjing Medical University, Nanjing, China
| | - Xinyue Wang
- Department of Pathogen Biology, Nanjing Medical University, Nanjing, China
| | - Min Hou
- Department of Pathogen Biology, Nanjing Medical University, Nanjing, China
| | - Yu Liu
- Department of Endocrinology, The Affiliated Sir Run Run Hospital of Nanjing Medical University, Nanjing, China
| | - Zhipeng Xu
- Department of Pathogen Biology, Nanjing Medical University, Nanjing, China.,Jiangsu Province Key Laboratory of Modern Pathogen Biology, Nanjing Medical University, Nanjing, China
| | - Minjun Ji
- Department of Pathogen Biology, Nanjing Medical University, Nanjing, China.,Department of Endocrinology, The Affiliated Sir Run Run Hospital of Nanjing Medical University, Nanjing, China.,Jiangsu Province Key Laboratory of Modern Pathogen Biology, Nanjing Medical University, Nanjing, China
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15
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Economopoulou P, de Bree R, Kotsantis I, Psyrri A. Diagnostic Tumor Markers in Head and Neck Squamous Cell Carcinoma (HNSCC) in the Clinical Setting. Front Oncol 2019; 9:827. [PMID: 31555588 PMCID: PMC6727245 DOI: 10.3389/fonc.2019.00827] [Citation(s) in RCA: 92] [Impact Index Per Article: 18.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2019] [Accepted: 08/12/2019] [Indexed: 12/19/2022] Open
Abstract
Head and neck squamous cell carcinoma (HNSCC) represents a group of tumors arising in the oral cavity, oropharynx, and larynx. Although HNSCC is traditionally associated with tobacco and alcohol consumption, a growing proportion of head and neck tumors, mainly of the oropharynx, are associated with Human Papilloma Virus (HPV). Recurrent/metastatic disease is characterized by dismal prognosis and there is an unmet need for the development of biomarkers for detection of early disease, accurate prediction of prognosis, and appropriate selection of therapy. Based on the REMARK guidelines, a variety of diagnostic and prognostic biomarkers are being evaluated in clinical trials but their clinical significance is doubtful. Herein, we will focus on biomarkers in HNSCC used in the clinical setting and we will illustrate their clinical relevance.
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Affiliation(s)
- Panagiota Economopoulou
- Section of Medical Oncology, Department of Internal Medicine, Faculty of Medicine, National and Kapodistrian University of Athens, Attikon University Hospital, Athens, Greece
| | - Remco de Bree
- Department of Head and Neck Surgical Oncology, UMC Utrecht Cancer Center, University Medical Center Utrecht, Utrecht, Netherlands
| | - Ioannis Kotsantis
- Section of Medical Oncology, Department of Internal Medicine, Faculty of Medicine, National and Kapodistrian University of Athens, Attikon University Hospital, Athens, Greece
| | - Amanda Psyrri
- Section of Medical Oncology, Department of Internal Medicine, Faculty of Medicine, National and Kapodistrian University of Athens, Attikon University Hospital, Athens, Greece
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16
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Mohammed H, Varoni EM, Cochis A, Cordaro M, Gallenzi P, Patini R, Staderini E, Lajolo C, Rimondini L, Rocchetti V. Oral Dysbiosis in Pancreatic Cancer and Liver Cirrhosis: A Review of the Literature. Biomedicines 2018; 6:biomedicines6040115. [PMID: 30544974 PMCID: PMC6316311 DOI: 10.3390/biomedicines6040115] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2018] [Revised: 12/03/2018] [Accepted: 12/07/2018] [Indexed: 02/07/2023] Open
Abstract
The human body is naturally colonized by a huge number of different commensal microbial species, in a relatively stable equilibrium. When this microbial community undergoes dysbiosis at any part of the body, it interacts with the innate immune system and results in a poor health status, locally or systemically. Research studies show that bacteria are capable of significantly influencing specific cells of the immune system, resulting in many diseases, including a neoplastic response. Amongst the multiple different types of diseases, pancreatic cancer and liver cirrhosis were significantly considered in this paper, as they are major fatal diseases. Recently, these two diseases were shown to be associated with increased or decreased numbers of certain oral bacterial species. These findings open the way for a broader perception and more specific investigative studies, to better understand the possible future treatment and prevention. This review aims to describe the correlation between oral dysbiosis and both pancreatic cancer and liver cirrhotic diseases, as well as demonstrating the possible diagnostic and treatment modalities, relying on the oral microbiota, itself, as prospective, simple, applicable non-invasive approaches to patients, by focusing on the state of the art. PubMed was electronically searched, using the following key words: "oral microbiota" and "pancreatic cancer" (PC), "liver cirrhosis", "systemic involvement", and "inflammatory mediators". Oral dysbiosis is a common problem related to poor oral or systemic health conditions. Oral pathogens can disseminate to distant body organs via the local, oral blood circulation, or pass through the gastrointestinal tract and enter into the systemic circulation. Once oral pathogens reach an organ, they modify the immune response and stimulate the release of the inflammatory mediators, this results in a disease. Recent studies have reported a correlation between oral dysbiosis and the increased risk of pancreatic and liver diseases and provided evidence of the presence of oral pathogens in diseased organs. The profound impact that microbial communities have on human health, provides a wide domain towards precisely investigating and clearly understanding the mechanism of many diseases, including cancer. Oral microbiota is an essential contributor to health status and imbalance in this community was correlated to oral and systemic diseases. The presence of elevated numbers of certain oral bacteria, particularly P. gingivalis, as well as elevated levels of blood serum antibodies, against this bacterial species, was associated with a higher risk of pancreatic cancer and liver cirrhosis incidence. Attempts are increasingly directed towards investigating the composition of oral microbiome as a simple diagnostic approach in multiple diseases, including pancreatic and liver pathosis. Moreover, treatment efforts are concerned in the recruitment of microbiota, for remedial purposes of the aforementioned and other different diseases. Further investigation is required to confirm and clarify the role of oral microbiota in enhancing pancreatic and liver diseases. Improving the treatment modalities requires an exertion of more effort, especially, concerning the microbiome engineering and oral microbiota transplantation.
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Affiliation(s)
- Hiba Mohammed
- Department of Health Sciences, Università del Piemonte Orientale UPO, 28100 Novara, Italy.
- Fondazione Novara Sviluppo, 28100 Novara, Italy.
| | - Elena Maria Varoni
- Department of Biomedical Sciences, Surgery and Dentistry, Università degli Studi di Milano, 20142 Milano, Italy.
| | - Andrea Cochis
- Department of Health Sciences, Università del Piemonte Orientale UPO, 28100 Novara, Italy.
- Interdisciplinary Research Center of Autoimmune Diseases (IRCAD), 28100 Novara, Italy.
| | - Massimo Cordaro
- Institute of Dentistry and Maxillofacial Surgery, Fondazione Policlinico Universitario A. Gemelli, IRCCS, Roma, Università Cattolica del Sacro Cuore, 00168 Rome, Italy.
| | - Patrizia Gallenzi
- Institute of Dentistry and Maxillofacial Surgery, Fondazione Policlinico Universitario A. Gemelli, IRCCS, Roma, Università Cattolica del Sacro Cuore, 00168 Rome, Italy.
| | - Romeo Patini
- Institute of Dentistry and Maxillofacial Surgery, Fondazione Policlinico Universitario A. Gemelli, IRCCS, Roma, Università Cattolica del Sacro Cuore, 00168 Rome, Italy.
| | - Edoardo Staderini
- Institute of Dentistry and Maxillofacial Surgery, Fondazione Policlinico Universitario A. Gemelli, IRCCS, Roma, Università Cattolica del Sacro Cuore, 00168 Rome, Italy.
| | - Carlo Lajolo
- Institute of Dentistry and Maxillofacial Surgery, Fondazione Policlinico Universitario A. Gemelli, IRCCS, Roma, Università Cattolica del Sacro Cuore, 00168 Rome, Italy.
| | - Lia Rimondini
- Department of Health Sciences, Università del Piemonte Orientale UPO, 28100 Novara, Italy.
- Interdisciplinary Research Center of Autoimmune Diseases (IRCAD), 28100 Novara, Italy.
| | - Vincenzo Rocchetti
- Fondazione Novara Sviluppo, 28100 Novara, Italy.
- Department of Clinical and Experimental Medicine, Università del Piemonte Orientale UPO, 28100 Novara, Italy.
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17
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Smith CK, Trinchieri G. The interplay between neutrophils and microbiota in cancer. J Leukoc Biol 2018; 104:701-715. [PMID: 30044897 DOI: 10.1002/jlb.4ri0418-151r] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2018] [Revised: 06/11/2018] [Accepted: 06/12/2018] [Indexed: 12/13/2022] Open
Abstract
The role of the microbiota in many diseases including cancer has gained increasing attention. Paired with this is our expanding appreciation for the heterogeneity of the neutrophil compartment regarding surface marker expression and functionality. In this review, we will discuss the influence of the microbiota on granulopoiesis and consequent activity of neutrophils in cancer. As evidence for this microbiota-neutrophil-cancer axis builds, it exposes new therapeutic targets to improve a cancer patient's outcome.
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Affiliation(s)
- Carolyne K Smith
- Cancer and Inflammation Program, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Giorgio Trinchieri
- Cancer and Inflammation Program, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
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18
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Niccolai E, Ricci F, Russo E, Nannini G, Emmi G, Taddei A, Ringressi MN, Melli F, Miloeva M, Cianchi F, Bechi P, Prisco D, Amedei A. The Different Functional Distribution of "Not Effector" T Cells (Treg/Tnull) in Colorectal Cancer. Front Immunol 2017; 8:1900. [PMID: 29375559 PMCID: PMC5770731 DOI: 10.3389/fimmu.2017.01900] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2017] [Accepted: 12/12/2017] [Indexed: 12/18/2022] Open
Abstract
Colorectal cancer (CRC) is the third most common cancer worldwide, ranking as high as the second leading cause of cancer-related deaths in industrialized countries. Consistent with immunosurveillance theory, the immune system is crucial to protect the host from developing tumors, and the major players in tumoral immunity are effector T cells. Anyway, cancer cells develop strategies of immunoevasion influencing the cancer-specific lymphocyte priming, activation, and effector function. Therefore, the T cell subsets that mature during the stages of tumor growth, differently contribute to disease progression and/or regression. In our study, we analyzed the intra-tumoral and peripheral T cell subsets’ distribution in 30 patients with CRC, in order to clarify their functional role toward cancer. We found that percentage of infiltrating effector T cells decreased in cancer tissue than in healthy mucosa and that the tumor microenvironment negatively influences the cytolytic activity of T lymphocytes reactive to cancer cells. Moreover, we found that the tumor tissue was infiltrated by a large amount of “not effector” T (neT) cells with a regulatory or an anergic profile, which are unable to kill cancer cells, may be contributing to the CRC promotion. The presence of neT cells was investigated also in the peripheral blood of CRC patients, demonstrating that the peripheral T regulatory cells can inhibit the proliferation of effector T cells, confirming their immunosuppressive properties. Finally, monitoring the changes in circulating neT cells’ frequencies after the tumor removal, we confirmed the role of cancer in the modulation of immune system, in particular, in supporting a Tregs-mediated immunosuppression.
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Affiliation(s)
- Elena Niccolai
- Department of Surgery and Translational Medicine, University of Florence, Florence, Italy
| | - Federica Ricci
- Department of Biomedical, Experimental and Clinical Sciences "Mario Serio", University of Florence, Florence, Italy
| | - Edda Russo
- Department of Clinical and Experimental Medicine, University of Florence, Florence, Italy
| | - Giulia Nannini
- Department of Clinical and Experimental Medicine, University of Florence, Florence, Italy
| | - Giacomo Emmi
- Department of Clinical and Experimental Medicine, University of Florence, Florence, Italy
| | - Antonio Taddei
- Department of Surgery and Translational Medicine, University of Florence, Florence, Italy
| | | | - Filippo Melli
- Department of Surgery and Translational Medicine, University of Florence, Florence, Italy
| | - Manouela Miloeva
- Department of Surgery and Translational Medicine, University of Florence, Florence, Italy
| | - Fabio Cianchi
- Department of Surgery and Translational Medicine, University of Florence, Florence, Italy
| | - Paolo Bechi
- Department of Surgery and Translational Medicine, University of Florence, Florence, Italy
| | - Domenico Prisco
- Department of Biomedical, Experimental and Clinical Sciences "Mario Serio", University of Florence, Florence, Italy
| | - Amedeo Amedei
- Department of Biomedical, Experimental and Clinical Sciences "Mario Serio", University of Florence, Florence, Italy
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19
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Ou D, Adam J, Garberis I, Blanchard P, Nguyen F, Levy A, Casiraghi O, Gorphe P, Breuskin I, Janot F, Temam S, Scoazec JY, Deutsch E, Tao Y. Clinical relevance of tumor infiltrating lymphocytes, PD-L1 expression and correlation with HPV/p16 in head and neck cancer treated with bio- or chemo-radiotherapy. Oncoimmunology 2017; 6:e1341030. [PMID: 28932643 DOI: 10.1080/2162402x.2017.1341030] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2017] [Revised: 06/02/2017] [Accepted: 06/06/2017] [Indexed: 10/19/2022] Open
Abstract
To investigate the prognostic value of tumor infiltrating lymphocytes (TILs: CD8+ and FoxP3+), and PD-L1 expression in patients with head and neck squamous cell carcinoma (HNSCC) treated with radiotherapy combined with cisplatin (CRT) or cetuximab (BRT). Immunohistochemistry for CD8, FoxP3 was performed on pretreatment tissue samples of 77 HNSCC patients. PD-L1 results were evaluable in 38 patients. Cox regression analysis was used to analyze the correlations of these biomarkers expression with clinicopathological characteristics and treatment outcomes. High CD8+ TILs level was identified in multivariate analysis (MVA) as an independent prognostic factor for improved progression-free survival with a non-significant trend for better overall survival (OS). High FoxP3+ TILs and PD-L1+ correlated with a favorable OS in the uni-variate analysis, respectively, but not in the MVA. In subgroup analysis, CD8+TILs appear to play a pivotal role, p16+/high CD8+TILs patients had superior 5-year OS compared with p16+/low CD8+TILs, p16-/ high CD8+TILs, and p16-/ low CD8+TILs patients. p16+/PD-L1+ patients had improved 3-year OS compared with p16+/PD-L1-, p16-/ PD-L1+, and p16-/ PD-L1- patients. In low CD8+ TILs tumors, 5-year loco-regional control of patients treated with CRT was improved vs. those with BRT (p = 0.01) while no significant difference in high CD8+ TILs was observed. CD8+ TILs correlated with an improved clinical outcome in HNSCC patients independent of Human papillomavirus status. The immunobiomarkers may provide information for selecting suitable patients for cisplatin or cetuximab treatment. Additionally, the impact of TILs and PD-L1 of deciphering among the p16+ population a very favorable outcome population could be of interest for patients tailored approaches.
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Affiliation(s)
- Dan Ou
- Department of Radiation Oncology, Gustave Roussy Cancer Campus, Villejuif, France.,Université Paris Sud, France.,INSERM1030 Molecular Radiotherapy, Villejuif, France.,Department of Radiation Oncology, Fudan University Shanghai Cancer Center, Shanghai, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Julien Adam
- Department of Pathology, Gustave Roussy Cancer Campus, Villejuif, France
| | - Ingrid Garberis
- Department of Pathology, Gustave Roussy Cancer Campus, Villejuif, France
| | - Pierre Blanchard
- Department of Radiation Oncology, Gustave Roussy Cancer Campus, Villejuif, France
| | - France Nguyen
- Department of Radiation Oncology, Gustave Roussy Cancer Campus, Villejuif, France
| | - Antonin Levy
- Department of Radiation Oncology, Gustave Roussy Cancer Campus, Villejuif, France.,INSERM1030 Molecular Radiotherapy, Villejuif, France
| | - Odile Casiraghi
- Department of Pathology, Gustave Roussy Cancer Campus, Villejuif, France
| | - Philippe Gorphe
- Department of Head and Neck Oncology, Gustave Roussy Cancer Campus, Villejuif, France
| | - Ingrid Breuskin
- Department of Head and Neck Oncology, Gustave Roussy Cancer Campus, Villejuif, France
| | - François Janot
- Department of Head and Neck Oncology, Gustave Roussy Cancer Campus, Villejuif, France
| | - Stephane Temam
- Department of Head and Neck Oncology, Gustave Roussy Cancer Campus, Villejuif, France
| | - Jean-Yves Scoazec
- Department of Pathology, Gustave Roussy Cancer Campus, Villejuif, France
| | - Eric Deutsch
- Department of Radiation Oncology, Gustave Roussy Cancer Campus, Villejuif, France.,Université Paris Sud, France.,INSERM1030 Molecular Radiotherapy, Villejuif, France
| | - Yungan Tao
- Department of Radiation Oncology, Gustave Roussy Cancer Campus, Villejuif, France.,INSERM1030 Molecular Radiotherapy, Villejuif, France
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20
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Erdman SE, Poutahidis T. Gut microbiota modulate host immune cells in cancer development and growth. Free Radic Biol Med 2017; 105:28-34. [PMID: 27840315 PMCID: PMC5831246 DOI: 10.1016/j.freeradbiomed.2016.11.013] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/07/2016] [Revised: 10/25/2016] [Accepted: 11/06/2016] [Indexed: 12/20/2022]
Abstract
Emerging evidence shows that microbe interactions with the host immune system impact diverse aspects of cancer development and treatment. As a result, exciting new opportunities exist for engineering diets and microbe cocktails to lower cancer risks with fewer adverse clinical effects than traditional strategies. Microbe-based therapies may ultimately be used to reinforce host immune balance and extinguish cancer for generations to come.
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Affiliation(s)
- Susan E Erdman
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, MA, USA.
| | - Theofilos Poutahidis
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, MA, USA; Department of Pathology, College of Veterinary Medicine, Aristotle University, Thessaloniki, Greece
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21
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Poutahidis T, Erdman SE. Commensal bacteria modulate the tumor microenvironment. Cancer Lett 2016; 380:356-8. [PMID: 26739062 PMCID: PMC4942371 DOI: 10.1016/j.canlet.2015.12.028] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2015] [Revised: 12/01/2015] [Accepted: 12/18/2015] [Indexed: 12/22/2022]
Abstract
It has been recently shown that gut microbes modulate whole host immune and hormonal factors impacting the fate of distant preneoplastic lesions toward malignancy or regression. This raises the possibility that the tumor microenvironment interacts with broader systemic microbial-immune networks. These accumulated findings suggest novel therapeutic opportunities for holobiont engineering in emerging tumor microenvironments.
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Affiliation(s)
- Theofilos Poutahidis
- Division of Comparative Medicine, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139, USA; Laboratory of Pathology, Faculty of Veterinary Medicine, Aristotle University of Thessaloniki, Greece 54124
| | - Susan E Erdman
- Division of Comparative Medicine, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139, USA.
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22
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Regulatory T Cells in the Tumor Microenvironment and Cancer Progression: Role and Therapeutic Targeting. Vaccines (Basel) 2016; 4:vaccines4030028. [PMID: 27509527 PMCID: PMC5041022 DOI: 10.3390/vaccines4030028] [Citation(s) in RCA: 323] [Impact Index Per Article: 40.4] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2016] [Revised: 07/27/2016] [Accepted: 08/01/2016] [Indexed: 02/07/2023] Open
Abstract
Recent years have seen significant efforts in understanding and modulating the immune response in cancer. In this context, immunosuppressive cells, including regulatory T cells (Tregs) and myeloid-derived suppressor cells (MDSCs), have come under intense investigation for their proposed roles in suppressing tumor-specific immune responses and establishing an immunosuppressive tumor microenvironment, thus enabling tumor immune evasion. Additionally, recent evidence indicates that Tregs comprise diverse and heterogeneous subsets; phenotypically and functionally distinct subsets of tumor-infiltrating Tregs could contribute differently to cancer prognosis and clinical outcomes. Understanding Treg biology in the setting of cancer, and specifically the tumor microenvironment, is important for designing effective cancer therapies. In this review, we critically examine the role of Tregs in the tumor microenvironment and in cancer progression focusing on human studies. We also discuss the impact of current therapeutic modalities on Treg biology and the therapeutic opportunities for targeting Tregs to enhance anti-tumor immune responses and clinical benefits.
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23
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Ferolla SM, Couto CA, Costa-Silva L, Armiliato GNA, Pereira CAS, Martins FS, Ferrari MDLA, Vilela EG, Torres HOG, Cunha AS, Ferrari TCA. Beneficial Effect of Synbiotic Supplementation on Hepatic Steatosis and Anthropometric Parameters, But Not on Gut Permeability in a Population with Nonalcoholic Steatohepatitis. Nutrients 2016; 8:nu8070397. [PMID: 27367724 PMCID: PMC4963873 DOI: 10.3390/nu8070397] [Citation(s) in RCA: 65] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2016] [Revised: 06/10/2016] [Accepted: 06/20/2016] [Indexed: 02/06/2023] Open
Abstract
Nonalcoholic fatty liver disease is the most prevalent chronic liver disease in Western countries; it can progress to nonalcoholic steatohepatitis (NASH), cirrhosis and hepatocarcinoma. The importance of gut-liver-adipose tissue axis has become evident and treatments targeting gut microbiota may improve inflammatory and metabolic parameters in NASH patients. In a randomized, controlled clinical trial, involving 50 biopsy-proven NASH patients, we investigated the effects of synbiotic supplementation on metabolic parameters, hepatic steatosis, intestinal permeability, small intestinal bacterial overgrowth (SIBO) and lipopolysaccharide (LPS) serum levels. Patients were separated into two groups receiving Lactobacillus reuteri with guar gum and inulin for three months and healthy balanced nutritional counseling versus nutritional counseling alone. Before and after the intervention we assessed steatosis by magnetic resonance imaging, intestinal permeability by lactulose/mannitol urinary excretion and SIBO by glucose breath testing. NASH patients presented high gut permeability, but low prevalence of SIBO. After the intervention, only the synbiotic group presented a reduction in steatosis, lost weight, diminished BMI and waist circumference measurement. Synbiotic did not improve intestinal permeability or LPS levels. We concluded that synbiotic supplementation associated with nutritional counseling seems superior to nutritional counseling alone for NASH treatment as it attenuates steatosis and may help to achieve weight loss.
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Affiliation(s)
- Silvia M Ferolla
- Departamento de ClínicaMédica, Faculdade de Medicina, Hospital das Clínicas, Universidade Federal de Minas Gerais, Belo Horizonte 30130-100, Brazil.
| | - Cláudia A Couto
- Departamento de ClínicaMédica, Faculdade de Medicina, Hospital das Clínicas, Universidade Federal de Minas Gerais, Belo Horizonte 30130-100, Brazil.
| | - Luciana Costa-Silva
- Departamento de Anatomia e Imagem, Faculdade de Medicina, Universidade Federal de Minas Gerais, Belo Horizonte 30130-100, Brazil.
| | - Geyza N A Armiliato
- Departamento de ClínicaMédica, Faculdade de Medicina, Hospital das Clínicas, Universidade Federal de Minas Gerais, Belo Horizonte 30130-100, Brazil.
| | - Cristiano A S Pereira
- Departamento de ClínicaMédica, Faculdade de Medicina, Hospital das Clínicas, Universidade Federal de Minas Gerais, Belo Horizonte 30130-100, Brazil.
| | - Flaviano S Martins
- Departamento de Microbiologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte31270-901, Brazil.
| | - Maria de Lourdes A Ferrari
- Departamento de ClínicaMédica, Faculdade de Medicina, Hospital das Clínicas, Universidade Federal de Minas Gerais, Belo Horizonte 30130-100, Brazil.
| | - Eduardo G Vilela
- Departamento de ClínicaMédica, Faculdade de Medicina, Hospital das Clínicas, Universidade Federal de Minas Gerais, Belo Horizonte 30130-100, Brazil.
| | - Henrique O G Torres
- Departamento de ClínicaMédica, Faculdade de Medicina, Hospital das Clínicas, Universidade Federal de Minas Gerais, Belo Horizonte 30130-100, Brazil.
| | - Aloísio S Cunha
- Departamento de ClínicaMédica, Faculdade de Medicina, Hospital das Clínicas, Universidade Federal de Minas Gerais, Belo Horizonte 30130-100, Brazil.
| | - Teresa C A Ferrari
- Departamento de ClínicaMédica, Faculdade de Medicina, Hospital das Clínicas, Universidade Federal de Minas Gerais, Belo Horizonte 30130-100, Brazil.
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24
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Varian BJ, Goureshetti S, Poutahidis T, Lakritz JR, Levkovich T, Kwok C, Teliousis K, Ibrahim YM, Mirabal S, Erdman SE. Beneficial bacteria inhibit cachexia. Oncotarget 2016; 7:11803-16. [PMID: 26933816 PMCID: PMC4914249 DOI: 10.18632/oncotarget.7730] [Citation(s) in RCA: 89] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2015] [Accepted: 02/05/2016] [Indexed: 12/18/2022] Open
Abstract
Muscle wasting, known as cachexia, is a debilitating condition associated with chronic inflammation such as during cancer. Beneficial microbes have been shown to optimize systemic inflammatory tone during good health; however, interactions between microbes and host immunity in the context of cachexia are incompletely understood. Here we use mouse models to test roles for bacteria in muscle wasting syndromes. We find that feeding of a human commensal microbe, Lactobacillus reuteri, to mice is sufficient to lower systemic indices of inflammation and inhibit cachexia. Further, the microbial muscle-building phenomenon extends to normal aging as wild type animals exhibited increased growth hormone levels and up-regulation of transcription factor Forkhead Box N1 [FoxN1] associated with thymus gland retention and longevity. Interestingly, mice with a defective FoxN1 gene (athymic nude) fail to inhibit sarcopenia after L. reuteri therapy, indicating a FoxN1-mediated mechanism. In conclusion, symbiotic bacteria may serve to stimulate FoxN1 and thymic functions that regulate inflammation, offering possible alternatives for cachexia prevention and novel insights into roles for microbiota in mammalian ontogeny and phylogeny.
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Affiliation(s)
- Bernard J. Varian
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Sravya Goureshetti
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Theofilos Poutahidis
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, MA, USA
- Laboratory of Pathology, Faculty of Veterinary Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Jessica R. Lakritz
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Tatiana Levkovich
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Caitlin Kwok
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Konstantinos Teliousis
- Laboratory of Pathology, Faculty of Veterinary Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Yassin M. Ibrahim
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Sheyla Mirabal
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Susan E. Erdman
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, MA, USA
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25
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26
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Lakritz JR, Poutahidis T, Mirabal S, Varian BJ, Levkovich T, Ibrahim YM, Ward JM, Teng EC, Fisher B, Parry N, Lesage S, Alberg N, Gourishetti S, Fox JG, Ge Z, Erdman SE. Gut bacteria require neutrophils to promote mammary tumorigenesis. Oncotarget 2016; 6:9387-96. [PMID: 25831236 PMCID: PMC4496224 DOI: 10.18632/oncotarget.3328] [Citation(s) in RCA: 80] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2015] [Accepted: 02/09/2015] [Indexed: 12/26/2022] Open
Abstract
Recent studies suggest that gastrointestinal tract microbiota modulate cancer development in distant non-intestinal tissues. Here we tested mechanistic hypotheses using a targeted pathogenic gut microbial infection animal model with a predilection to breast cancer. FVB-Tg(C3-1-TAg)cJeg/JegJ female mice were infected by gastric gavage with Helicobacter hepaticus at three-months-of-age putting them at increased risk for mammary tumor development. Tumorigenesis was multifocal and characterized by extensive infiltrates of myeloperoxidase-positive neutrophils otherwise implicated in cancer progression in humans and animal models. To test whether neutrophils were important in etiopathogenesis in this bacteria-triggered model system, we next systemically depleted mice of neutrophils using thrice weekly intraperitoneal injections with anti-Ly-6G antibody. We found that antibody depletion entirely inhibited tumor development in this H. hepaticus-infected model. These data demonstrate that host neutrophil-associated immune responses to intestinal tract microbes significantly impact cancer progression in distal tissues such as mammary glands, and identify gut microbes as novel targets for extra-intestinal cancer therapy.
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Affiliation(s)
- Jessica R Lakritz
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Theofilos Poutahidis
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, MA 02139, USA.,Laboratory of Pathology, Faculty of Veterinary Medicine, Aristotle University of Thessaloniki, Greece 54124
| | - Sheyla Mirabal
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Bernard J Varian
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Tatiana Levkovich
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Yassin M Ibrahim
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | | | - Ellen C Teng
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Brett Fisher
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Nicola Parry
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Stephanie Lesage
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Natalie Alberg
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Sravya Gourishetti
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - James G Fox
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Zhongming Ge
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Susan E Erdman
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
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27
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Geis AL, Housseau F. Procarcinogenic regulatory T cells in microbial-induced colon cancer. Oncoimmunology 2015; 5:e1118601. [PMID: 27141400 DOI: 10.1080/2162402x.2015.1118601] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2015] [Accepted: 11/04/2015] [Indexed: 12/22/2022] Open
Abstract
Regulatory T cell (Treg) promote IL-17-mediated colon tumorigenesis in multiple intestinal neoplasia (Min) mice colonized with enterotoxigenic Bacteroides fragilis (ETBF). Although they retain their immunosuppressive function, mucosal Treg are instrumental to initiate ETBF-triggered IL-17 colitis by limiting the availability of IL-2 in the local microenvironment. However, the mechanisms that trigger the recruitment of the pro-carcinogenic Treg in ETBF-colonized colon remained to be elucidated.
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Affiliation(s)
- Abby L Geis
- Department of Oncology, Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins University , Baltimore, MD, USA
| | - Franck Housseau
- Department of Oncology, Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins University , Baltimore, MD, USA
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28
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Erdman SE, Poutahidis T. Gut bacteria and cancer. Biochim Biophys Acta Rev Cancer 2015; 1856:86-90. [PMID: 26050963 DOI: 10.1016/j.bbcan.2015.05.007] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2015] [Accepted: 05/24/2015] [Indexed: 02/07/2023]
Abstract
Microbiota on the mucosal surfaces of the gastrointestinal (GI) tract greatly outnumbers the cells in the human body. Effects of antibiotics indicate that GI tract bacteria may be determining the fate of distal cancers. Recent data implicate dysregulated host responses to enteric bacteria leading to cancers in extra-intestinal sites. Together these findings point to novel anti-cancer strategies aimed at promoting GI tract homeostasis.
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Affiliation(s)
- Susan E Erdman
- Division of Comparative Medicine, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139, United States.
| | - Theofilos Poutahidis
- Division of Comparative Medicine, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139, United States; Laboratory of Pathology, Faculty of Veterinary Medicine, Aristotle University of Thessaloniki, 54124, Greece
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29
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Segura-López FK, Güitrón-Cantú A, Torres J. Association between Helicobacter spp. infections and hepatobiliary malignancies: a review. World J Gastroenterol 2015; 21:1414-23. [PMID: 25663761 PMCID: PMC4316084 DOI: 10.3748/wjg.v21.i5.1414] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/09/2014] [Revised: 10/29/2014] [Accepted: 11/19/2014] [Indexed: 02/06/2023] Open
Abstract
Hepatobiliary cancers are highly lethal cancers that comprise a spectrum of invasive carcinomas originating in the liver hepatocellular carcinoma, the bile ducts intrahepatic cholangiocarcinoma and extrahepatic cholangiocarcinoma, the gallbladder and the ampulla of Vater (collectively known as biliary tract cancers). These tumors account for approximately 13% of all annual cancer-related deaths worldwide and for 10%-20% of deaths from hepatobiliary malignancies. Cholangiocarcinoma (CCA) is a devastating disease that displays a poor survival rate for which few therapeutic options are available. Population genetics, geographical and environmental factors, cholelithiasis, obesity, parity, and endemic infection with liver flukes have been identified as risk factors that influence the development of biliary tract tumors. Other important factors affecting the carcinogenesis of these tumors include chronic inflammation, obstruction of the bile ducts, and impaired bile flow. It has been suggested that CCA is caused by infection with Helicobacter species, such as Helicobacter bilis and Helicobacter hepaticus, in a manner that is similar to the reported role of Helicobacter pylori in distal gastric cancer. Due to the difficulty in culturing these Helicobacter species, molecular methods, such as polymerase chain reaction and sequencing, or immunologic assays have become the methods of choice for diagnosis. However, clinical studies of benign or malignant biliary tract diseases revealed remarkable variability in the methods and the findings, and the use of uniform and validated techniques is needed.
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30
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Doulberis M, Angelopoulou K, Kaldrymidou E, Tsingotjidou A, Abas Z, Erdman SE, Poutahidis T. Cholera-toxin suppresses carcinogenesis in a mouse model of inflammation-driven sporadic colon cancer. Carcinogenesis 2014; 36:280-90. [PMID: 25550315 DOI: 10.1093/carcin/bgu325] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
Human studies and clues from animal models have provided important links between gastrointestinal (GI) tract bacteria and colon cancer. Gut microbiota antigenic stimuli play an important role in shaping the intestinal immune responses. Therefore, especially in the case of inflammation-associated colon cancer, gut bacteria antigens may affect tumorigenesis. The present study aimed to investigate the effects of the oral administration of a bacterial product with known immunomodulatory properties on inflammation-driven colorectal neoplasmatogenesis. For that, we used cholera-toxin and a well-established mouse model of colon cancer in which neoplasia is initiated by a single dose of the genotoxic agent azoxymethane (AOM) and subsequently promoted by inflammation caused by the colitogenic substance dextran sodium sulfate (DSS). We found that a single, low, non-pathogenic dose of CT, given orally at the beginning of each DSS treatment cycle downregulated neutrophils and upregulated regulatory T-cells and IL-10 in the colonic mucosa. The CT-induced disruption of the tumor-promoting character of DSS-induced inflammation led to the reduction of the AOM-initiated colonic polypoidogenesis. This result adds value to the emerging notion that certain GI tract bacteria or their products affect the immune system and render the microenvironment of preneoplastic lesions less favorable for promoting their evolution to cancer.
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Affiliation(s)
- Michael Doulberis
- Laboratory of Pathology, Laboratory of Biochemistry and Toxicology and Laboratory of Anatomy, Histology and Embryology, Faculty of Health Sciences, School of Veterinary Medicine, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece, Department of Agricultural Development, Democritus University of Thrace, Orestiada 68200, Greece and Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | | | - Eleni Kaldrymidou
- Laboratory of Pathology, Laboratory of Biochemistry and Toxicology and Laboratory of Anatomy, Histology and Embryology, Faculty of Health Sciences, School of Veterinary Medicine, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece, Department of Agricultural Development, Democritus University of Thrace, Orestiada 68200, Greece and Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Anastasia Tsingotjidou
- Laboratory of Anatomy, Histology and Embryology, Faculty of Health Sciences, School of Veterinary Medicine, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece
| | - Zaphiris Abas
- Department of Agricultural Development, Democritus University of Thrace, Orestiada 68200, Greece and
| | - Suzan E Erdman
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Theofilos Poutahidis
- Laboratory of Pathology, Laboratory of Biochemistry and Toxicology and Laboratory of Anatomy, Histology and Embryology, Faculty of Health Sciences, School of Veterinary Medicine, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece, Department of Agricultural Development, Democritus University of Thrace, Orestiada 68200, Greece and Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
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31
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Abstract
Radiant skin and hair are universal indicators of good health. It was recently shown that feeding of probiotic bacteria to aged mice rapidly induced youthful vitality characterised by thick lustrous skin and hair, and enhanced reproductive fitness, not seen in untreated controls. Probiotic-treated animals displayed integrated immune and hypothalamic-pituitary outputs that were isolated mechanistically to microbe-induced anti-inflammatory interleukin-10 and neuropeptide hormone oxytocin. In this way, probiotic microbes interface with mammalian physiological underpinnings to impart superb physical and reproductive fitness displayed as radiant and resilient skin and mucosae, unveiling novel strategies for integumentary health.
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Affiliation(s)
- S E Erdman
- Division of Comparative Medicine, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139, USA
| | - T Poutahidis
- Division of Comparative Medicine, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139, USA Faculty of Veterinary Medicine, Laboratory of Pathology, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
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32
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Levkovich T, Poutahidis T, Cappelle K, Smith MB, Perrotta A, Alm EJ, Erdman SE. 'Hygienic' lymphocytes convey increased cancer risk. JOURNAL OF ANALYTICAL ONCOLOGY 2014; 3:113-121. [PMID: 25722756 PMCID: PMC4338962 DOI: 10.6000/1927-7229.2014.03.03.1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Risk of developing inflammation-associated cancers has increased in industrialized countries during the past 30 years. One possible explanation is societal hygiene practices with use of antibiotics and Caesarian births that provide too few early life exposures of beneficial microbes. Building upon a 'hygiene hypothesis' model whereby prior microbial exposures lead to beneficial changes in CD4+ lymphocytes, here we use an adoptive cell transfer model and find that too few prior microbe exposures alternatively result in increased inflammation-associated cancer growth in susceptible recipient mice. Specifically, purified CD4+ lymphocytes collected from 'restricted flora' donors increases multiplicity and features of malignancy in intestinal polyps of recipient ApcMin/+ mice, coincident with increased inflammatory cell infiltrates and instability of the intestinal microbiota. We conclude that while a competent immune system serves to maintain intestinal homeostasis and good health, under hygienic rearing conditions CD4+ lymphocytes instead exacerbate inflammation-associated tumorigenesis, subsequently contributing to more frequent cancers in industrialized societies.
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Affiliation(s)
- Tatiana Levkovich
- Division of Comparative Medicine, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139
| | - Theofilos Poutahidis
- Division of Comparative Medicine, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139
- Laboratory of Pathology, Faculty of Veterinary Medicine, Aristotle University of Thessaloniki, Greece 54124
| | - Kelsey Cappelle
- Division of Comparative Medicine, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139
| | - Mark B. Smith
- Biological Engineering, Massachusetts Institute of Technology, Cambridge MA 02139 United States
| | - Allison Perrotta
- Biological Engineering, Massachusetts Institute of Technology, Cambridge MA 02139 United States
| | - Eric J Alm
- Biological Engineering, Massachusetts Institute of Technology, Cambridge MA 02139 United States
- Broad Institute of MIT and Harvard, Cambridge, MA, United States
| | - Susan E Erdman
- Division of Comparative Medicine, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139
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33
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Poutahidis T, Kleinewietfeld M, Erdman SE. Gut microbiota and the paradox of cancer immunotherapy. Front Immunol 2014; 5:157. [PMID: 24778636 PMCID: PMC3985000 DOI: 10.3389/fimmu.2014.00157] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2014] [Accepted: 03/25/2014] [Indexed: 12/13/2022] Open
Abstract
It is recently shown that beneficial environmental microbes stimulate integrated immune and neuroendocrine factors throughout the body, consequently modulating regulatory T-lymphocyte phenotypes, maintaining systemic immune balance, and determining the fate of preneoplastic lesions toward regression while sustaining whole body good health. Stimulated by a gut microbiota-centric systemic homeostasis hypothesis, we set out to explore the influence of the gut microbiome to explain the paradoxical roles of regulatory T-lymphocytes in cancer development and growth. This paradigm shift places cancer prevention and treatment into a new broader context of holobiont engineering to cultivate a tumor-suppressive macroenvironment.
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Affiliation(s)
- Theofilos Poutahidis
- Division of Comparative Medicine, Massachusetts Institute of Technology , Cambridge, MA , USA ; Laboratory of Pathology, Faculty of Veterinary Medicine, Aristotle University of Thessaloniki , Thessaloniki , Greece
| | - Markus Kleinewietfeld
- Departments of Neurology and Immunobiology, Yale School of Medicine , New Haven, CT , USA ; Broad Institute, Massachusetts Institute of Technology and Harvard University , Cambridge, MA , USA ; Faculty of Medicine, Dresden University of Technology (TUD) , Dresden , Germany
| | - Susan E Erdman
- Division of Comparative Medicine, Massachusetts Institute of Technology , Cambridge, MA , USA
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34
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Karamanavi E, Angelopoulou K, Lavrentiadou S, Tsingotjidou A, Abas Z, Taitzoglou I, Vlemmas I, Erdman SE, Poutahidis T. Urokinase-type plasminogen activator deficiency promotes neoplasmatogenesis in the colon of mice. Transl Oncol 2014; 7:174-187.e5. [PMID: 24913672 PMCID: PMC4101295 DOI: 10.1016/j.tranon.2014.02.002] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2013] [Revised: 01/14/2014] [Accepted: 01/15/2014] [Indexed: 12/19/2022] Open
Abstract
Urokinase-type plasminogen activator (uPA) participates in cancer-related biologic processes, such as wound healing and inflammation. The present study aimed to investigate the effect of uPA deficiency on the long-term outcome of early life episodes of dextran sodium sulfate (DSS)-induced colitis in mice. Wild-type (WT) and uPA-deficient (uPA(-/-)) BALB/c mice were treated with DSS or remained untreated. Mice were necropsied either 1 week or 7 months after DSS treatment. Colon samples were analyzed by histopathology, immunohistochemistry, ELISA, and real-time polymerase chain reaction. At 7 months, with no colitis evident, half of the uPA(-/-) mice had large colonic polypoid adenomas, whereas WT mice did not. One week after DSS treatment, there were typical DSS-induced colitis lesions in both WT and uPA(-/-) mice. The affected colon of uPA(-/-) mice, however, had features of delayed ulcer re-epithelialization and dysplastic lesions of higher grade developing on the basis of a significantly altered mucosal inflammatory milieu. The later was characterized by more neutrophils and macrophages, less regulatory T cells (Treg), significantly upregulated cytokines, including interleukin-6 (IL-6), IL-17, tumor necrosis factor-α, and IL-10, and lower levels of active transforming growth factor-β1 (TGF-β1) compared to WT mice. Dysfunctional Treg, more robust protumorigenic inflammatory events, and an inherited inability to produce adequate amounts of extracellular active TGF-β1 due to uPA deficiency are interlinked as probable explanations for the inflammatory-induced neoplasmatogenesis in the colon of uPA(-/-) mice.
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Affiliation(s)
- Elisavet Karamanavi
- Laboratory of Pathology, Faculty of Veterinary Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Katerina Angelopoulou
- Laboratory of Biochemistry and Toxicology, Faculty of Veterinary Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Sophia Lavrentiadou
- Laboratory of Physiology, Faculty of Veterinary Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Anastasia Tsingotjidou
- Laboratory of Anatomy, Histology and Embryology, Faculty of Veterinary Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Zaphiris Abas
- Department of Agricultural Development, Democritus University of Thrace, Orestiada, Greece
| | - Ioannis Taitzoglou
- Laboratory of Physiology, Faculty of Veterinary Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Ioannis Vlemmas
- Laboratory of Pathology, Faculty of Veterinary Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Suzan E Erdman
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Theofilos Poutahidis
- Laboratory of Pathology, Faculty of Veterinary Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece.
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Lakritz JR, Poutahidis T, Levkovich T, Varian BJ, Ibrahim YM, Chatzigiagkos A, Mirabal S, Alm EJ, Erdman SE. Beneficial bacteria stimulate host immune cells to counteract dietary and genetic predisposition to mammary cancer in mice. Int J Cancer 2014; 135:529-40. [PMID: 24382758 PMCID: PMC4131439 DOI: 10.1002/ijc.28702] [Citation(s) in RCA: 93] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2013] [Accepted: 12/23/2013] [Indexed: 12/16/2022]
Abstract
Recent studies suggest health benefits including protection from cancer after eating fermented foods such as probiotic yogurt, though the mechanisms are not well understood. Here we tested mechanistic hypotheses using two different animal models: the first model studied development of mammary cancer when eating a Westernized diet, and the second studied animals with a genetic predilection to breast cancer. For the first model, outbred Swiss mice were fed a Westernized chow putting them at increased risk for development of mammary tumors. In this Westernized diet model, mammary carcinogenesis was inhibited by routine exposure to Lactobacillus reuteri ATCC-PTA-6475 in drinking water. The second model was FVB strain erbB2 (HER2) mutant mice, genetically susceptible to mammary tumors mimicking breast cancers in humans, being fed a regular (non-Westernized) chow diet. We found that oral supplement with these purified lactic acid bacteria alone was sufficient to inhibit features of mammary neoplasia in both models. The protective mechanism was determined to be microbially-triggered CD4+CD25+ lymphocytes. When isolated and transplanted into other subjects, these L. reuteri-stimulated lymphocytes were sufficient to convey transplantable anti-cancer protection in the cell recipient animals. These data demonstrate that host immune responses to environmental microbes significantly impact and inhibit cancer progression in distal tissues such as mammary glands, even in genetically susceptible mice. This leads us to conclude that consuming fermentative microbes such as L. reuteri may offer a tractable public health approach to help counteract the accumulated dietary and genetic carcinogenic events integral in the Westernized diet and lifestyle.
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Affiliation(s)
- Jessica R Lakritz
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, MA
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Microbial symbionts accelerate wound healing via the neuropeptide hormone oxytocin. PLoS One 2013; 8:e78898. [PMID: 24205344 PMCID: PMC3813596 DOI: 10.1371/journal.pone.0078898] [Citation(s) in RCA: 193] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2013] [Accepted: 09/17/2013] [Indexed: 02/07/2023] Open
Abstract
Wound healing capability is inextricably linked with diverse aspects of physical fitness ranging from recovery after minor injuries and surgery to diabetes and some types of cancer. Impact of the microbiome upon the mammalian wound healing process is poorly understood. We discover that supplementing the gut microbiome with lactic acid microbes in drinking water accelerates the wound-healing process to occur in half the time required for matched control animals. Further, we find that Lactobacillus reuteri enhances wound-healing properties through up-regulation of the neuropeptide hormone oxytocin, a factor integral in social bonding and reproduction, by a vagus nerve-mediated pathway. Bacteria-triggered oxytocin serves to activate host CD4+Foxp3+CD25+ immune T regulatory cells conveying transplantable wound healing capacity to naive Rag2-deficient animals. This study determined oxytocin to be a novel component of a multi-directional gut microbe-brain-immune axis, with wound-healing capability as a previously unrecognized output of this axis. We also provide experimental evidence to support long-standing medical traditions associating diet, social practices, and the immune system with efficient recovery after injury, sustained good health, and longevity.
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Nguyen AV, Wu YY, Liu Q, Wang D, Nguyen S, Loh R, Pang J, Friedman K, Orlofsky A, Augenlicht L, Pollard JW, Lin EY. STAT3 in epithelial cells regulates inflammation and tumor progression to malignant state in colon. Neoplasia 2013; 15:998-1008. [PMID: 24027425 PMCID: PMC3769879 DOI: 10.1593/neo.13952] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2013] [Revised: 06/26/2013] [Accepted: 07/02/2013] [Indexed: 01/05/2023]
Abstract
Chronic inflammation is an important risk factor for the development of colorectal cancer; however, the mechanism of tumorigenesis especially tumor progression to malignancy in the inflamed colon is still unclear. Our study shows that epithelial signal transducer and activator of transcription 3 (STAT3), persistently activated in inflamed colon, is not required for inflammation-induced epithelial overproliferation and the development of early-stage tumors; however, it is essential for tumor progression to advanced malignancy. We found that one of the mechanisms that epithelial STAT3 regulates in tumor progression might be to modify leukocytic infiltration in the large intestine. Activation of epithelial STAT3 promotes the infiltration of the CD8+ lymphocyte population but inhibits the recruitment of regulatory T (Treg) lymphocytes. The loss of Stat3 in epithelial cells promoted the expression of cytokines/chemokines including CCL19, CCL28, and RANTES, which are known to be able to recruit Treg lymphocytes. Linked to these changes was the pathway mediated by sphingosine 1-phosphate receptor 1 and sphingosine 1-phosphate kinases, which is activated in colonic epithelial cells in inflamed colon with functional STAT3 but not in epithelial cells deleted of STAT3. Our data suggest that epithelial STAT3 plays a critical role in inflammation-induced tumor progression through regulation of leukocytic recruitment especially the infiltration of Treg cells in the large intestine.
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Affiliation(s)
- Andrew V Nguyen
- Department of Biological Sciences and Geology, Queensborough-The City University of New York, Bayside, NY
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Pathogenic intestinal bacteria enhance prostate cancer development via systemic activation of immune cells in mice. PLoS One 2013; 8:e73933. [PMID: 23991210 PMCID: PMC3753256 DOI: 10.1371/journal.pone.0073933] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2013] [Accepted: 07/24/2013] [Indexed: 01/10/2023] Open
Abstract
A role for microbes has been suspected in prostate cancer but difficult to confirm in human patients. We show here that a gastrointestinal (GI) tract bacterial infection is sufficient to enhance prostate intraepithelial neoplasia (PIN) and microinvasive carcinoma in a mouse model. We found that animals with a genetic predilection for dysregulation of wnt signaling, ApcMin/+ mutant mice, were significantly susceptible to prostate cancer in an inflammation-dependent manner following infection with Helicobacter hepaticus. Further, early neoplasia observed in infected ApcMin/+ mice was transmissible to uninfected mice by intraperitoneal injection of mesenteric lymph node (MLN) cells alone from H. hepaticus-infected mutant mice. Transmissibility of neoplasia was preventable by prior neutralization of inflammation using anti-TNF-α antibody in infected MLN donor mice. Taken together, these data confirm that systemic inflammation triggered by GI tract bacteria plays a pivotal role in tumorigenesis of the prostate gland.
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Fox M, Knapp LA, Andrews PW, Fincher CL. Hygiene and the world distribution of Alzheimer's disease: Epidemiological evidence for a relationship between microbial environment and age-adjusted disease burden. EVOLUTION MEDICINE AND PUBLIC HEALTH 2013; 2013:173-86. [PMID: 24481197 PMCID: PMC3868447 DOI: 10.1093/emph/eot015] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
People living in sanitized environments may be at greater Alzheimer's risk. We compare Alzheimer's rates in different countries in light of countries' historical and contemporary pathogen prevalence, sanitation, and urbanization. We find that countries that are less urbanized, with more pathogens and lower degree of sanitation have lower Alzheimer's rates. Background and objectives: Alzheimer’s disease (AD) shares certain etiological features with autoimmunity. Prevalence of autoimmunity varies between populations in accordance with variation in environmental microbial diversity. Exposure to microorganisms may improve individuals’ immunoregulation in ways that protect against autoimmunity, and we suggest that this may also be the case for AD. Here, we investigate whether differences in microbial diversity can explain patterns of age-adjusted AD rates between countries. Methodology: We use regression models to test whether pathogen prevalence, as a proxy for microbial diversity, across 192 countries can explain a significant amount of the variation in age-standardized AD disability-adjusted life-year (DALY) rates. We also review and assess the relationship between pathogen prevalence and AD rates in different world populations. Results: Based on our analyses, it appears that hygiene is positively associated with AD risk. Countries with greater degree of sanitation and lower degree of pathogen prevalence have higher age-adjusted AD DALY rates. Countries with greater degree of urbanization and wealth exhibit higher age-adjusted AD DALY rates. Conclusions and implications: Variation in hygiene may partly explain global patterns in AD rates. Microorganism exposure may be inversely related to AD risk. These results may help predict AD burden in developing countries where microbial diversity is rapidly diminishing. Epidemiological forecasting is important for preparing for future healthcare needs and research prioritization.
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Affiliation(s)
- Molly Fox
- Division of Biological Anthropology, Department of Anthropology and Archaeology, University of Cambridge, Pembroke Street, Cambridge CB2 3QY, UK, Department of Anthropology, University of Utah, 270 S 1400 E, Salt Lake City, UT 84112, USA, Department of Psychology, Neuroscience & Behaviour, McMaster University, 1280 Main Street W, Hamilton, ON L8S 4K1, Canada and Institute of Neuroscience and Psychology, University of Glasgow, 58 Hillhead Street, Glasgow G12 8QB, UK
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Poutahidis T, Kleinewietfeld M, Smillie C, Levkovich T, Perrotta A, Bhela S, Varian BJ, Ibrahim YM, Lakritz JR, Kearney SM, Chatzigiagkos A, Hafler DA, Alm EJ, Erdman SE. Microbial reprogramming inhibits Western diet-associated obesity. PLoS One 2013; 8:e68596. [PMID: 23874682 PMCID: PMC3707834 DOI: 10.1371/journal.pone.0068596] [Citation(s) in RCA: 121] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2013] [Accepted: 05/29/2013] [Indexed: 11/20/2022] Open
Abstract
A recent epidemiological study showed that eating ‘fast food’ items such as potato chips increased likelihood of obesity, whereas eating yogurt prevented age-associated weight gain in humans. It was demonstrated previously in animal models of obesity that the immune system plays a critical role in this process. Here we examined human subjects and mouse models consuming Westernized ‘fast food’ diet, and found CD4+ T helper (Th)17-biased immunity and changes in microbial communities and abdominal fat with obesity after eating the Western chow. In striking contrast, eating probiotic yogurt together with Western chow inhibited age-associated weight gain. We went on to test whether a bacteria found in yogurt may serve to lessen fat pathology by using purified Lactobacillus reuteri ATCC 6475 in drinking water. Surprisingly, we discovered that oral L. reuteri therapy alone was sufficient to change the pro-inflammatory immune cell profile and prevent abdominal fat pathology and age-associated weight gain in mice regardless of their baseline diet. These beneficial microbe effects were transferable into naïve recipient animals by purified CD4+ T cells alone. Specifically, bacterial effects depended upon active immune tolerance by induction of Foxp3+ regulatory T cells (Treg) and interleukin (Il)-10, without significantly changing the gut microbial ecology or reducing ad libitum caloric intake. Our finding that microbial targeting restored CD4+ T cell balance and yielded significantly leaner animals regardless of their dietary ‘fast food’ indiscretions suggests population-based approaches for weight management and enhancing public health in industrialized societies.
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Affiliation(s)
- Theofilos Poutahidis
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, Massachusetts, United States of America
- Laboratory of Pathology, Faculty of Veterinary Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Markus Kleinewietfeld
- Departments of Neurology and Immunobiology, Yale School of Medicine, New Haven, Connecticut, United States of America
- Broad Institute, Massachusetts Institute of Technology and Harvard University, Cambridge, Massachusetts, United States of America
| | - Christopher Smillie
- Civil and Environmental Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts, United States of America
| | - Tatiana Levkovich
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, Massachusetts, United States of America
| | - Alison Perrotta
- Civil and Environmental Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts, United States of America
| | - Siddheshvar Bhela
- Departments of Neurology and Immunobiology, Yale School of Medicine, New Haven, Connecticut, United States of America
| | - Bernard J. Varian
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, Massachusetts, United States of America
| | - Yassin M. Ibrahim
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, Massachusetts, United States of America
| | - Jessica R. Lakritz
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, Massachusetts, United States of America
| | - Sean M. Kearney
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, Massachusetts, United States of America
- Biological Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts, United States of America
| | - Antonis Chatzigiagkos
- Laboratory of Pathology, Faculty of Veterinary Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - David A. Hafler
- Departments of Neurology and Immunobiology, Yale School of Medicine, New Haven, Connecticut, United States of America
- Broad Institute, Massachusetts Institute of Technology and Harvard University, Cambridge, Massachusetts, United States of America
- * E-mail: (EJA); (DAH); (SEE)
| | - Eric J. Alm
- Broad Institute, Massachusetts Institute of Technology and Harvard University, Cambridge, Massachusetts, United States of America
- Civil and Environmental Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts, United States of America
- Biological Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts, United States of America
- * E-mail: (EJA); (DAH); (SEE)
| | - Susan E. Erdman
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, Massachusetts, United States of America
- * E-mail: (EJA); (DAH); (SEE)
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The immune response to tuberculosis infection in the setting of Helicobacter pylori and helminth infections. Epidemiol Infect 2012; 141:1232-43. [PMID: 22954328 DOI: 10.1017/s0950268812001823] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
We screened 176 healthy, adult (aged 18-55 years) US refugees from tuberculosis (TB)-endemic countries to evaluate whether cytokine responses to latent TB infection (LTBI) are modified in the setting of concurrent H. pylori and helminth infection. As measured by the Quantiferon-TB GOLD interferon-γ release assay, a total 38 (22%) subjects had LTBI, of which 28 (74%) also were H. pylori seropositive and/or helminth infected. Relative to ten subjects with LTBI only, 16 subjects with concurrent H. pylori infection had significantly elevated levels of IFN-γ, and nine subjects with both H. pylori and helminth infection had significantly elevated levels of IFN-γ, IL-2, IL-13, and IL-5. H. pylori is associated with enhanced IFN-γ responses to TB, even in the setting of concurrent helminth infection. Efficacy of TB vaccines may vary with the co-existence of these three infections in the developing world.
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Tumor-specific CD4+ T cells develop cytotoxic activity and eliminate virus-induced tumor cells in the absence of regulatory T cells. Cancer Immunol Immunother 2012; 62:257-71. [PMID: 22890822 PMCID: PMC3569596 DOI: 10.1007/s00262-012-1329-y] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2012] [Accepted: 07/25/2012] [Indexed: 12/17/2022]
Abstract
The important role of tumor-specific cytotoxic CD8+ T cells is well defined in the immune control of the tumors, but the role of effector CD4+ T cells is poorly understood. In the current research, we have used a murine retrovirus-induced tumor cell line of C57BL/6 mouse origin, namely FBL-3 cells, as a model to study basic mechanisms of immunological control and escape during tumor formation. This study shows that tumor-specific CD4+ T cells are able to protect against virus-induced tumor cells. We show here that there is an expansion of tumor-specific CD4+ T cells producing cytokines and cytotoxic molecule granzyme B (GzmB) in the early phase of tumor growth. Importantly, we demonstrate that in vivo depletion of regulatory T cells (Tregs) and CD8+ T cells in FBL-3-bearing DEREG transgenic mice augments IL-2 and GzmB production by CD4+ T cells and increases FV-specific CD4+ T-cell effector and cytotoxic responses leading to the complete tumor regression. Therefore, the capacity to reject tumor acquired by tumor-reactive CD4+ T cells largely depends on the direct suppressive activity of Tregs. We suggest that a cytotoxic CD4+ T-cell immune response may be induced to enhance resistance against oncovirus-associated tumors.
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Prognostic impact of FoxP3+ regulatory T cells in relation to CD8+ T lymphocyte density in human colon carcinomas. PLoS One 2012; 7:e42274. [PMID: 22879926 PMCID: PMC3412852 DOI: 10.1371/journal.pone.0042274] [Citation(s) in RCA: 81] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2012] [Accepted: 07/02/2012] [Indexed: 01/03/2023] Open
Abstract
BACKGROUND T-lymphocyte infiltration into colon carcinomas can influence clinical outcome, and interactions among T cell subsets may be more informative than either subset alone. Our objective was to examine the prognostic impact of tumor-infiltrating FoxP3(+) regulatory T cells (Tregs) in relation to cytotoxic CD8(+) T lymphocytes in patients with colon carcinomas characterized by DNA mismatch repair (MMR) status who participated in adjuvant chemotherapy trials. METHODS FoxP3(+) and CD8(+) densities in tumor epithelial and stromal compartments were analyzed by immunohistochemistry and quantified in resected, stage II and III colonic carcinomas (N = 216). Immune marker density was dichotomized at the median and categorized as high vs low. MMR status was classified as MMR deficient (dMMR) or proficient (pMMR). Cox models were adjusted for age, stage, and tumor grade. RESULTS The density of FoxP3+ infiltration was similar in tumor stroma and epithelia, whereas CD8+ was higher in stroma. The prognostic impact of FoxP3+ and CD8+ T cell infiltration was stronger in stroma vs epithelia, and the density of each marker in stroma was independently associated with improved overall survival (OS). However, the impact of FoxP3+ on survival was dependent upon CD8+ density (P interaction = 040). Among CD8+(low) tumors, FoxP3+(high) cases had significantly improved OS compared to FoxP3+(low) cases after adjustment for covariates (hazard ratio 0.43; 95% confidence interval 0.19 to 0.95; P = .030). In contrast, FoxP3+ was not prognostic among CD8+(high) tumors. FoxP3+ remained prognostic in CD8+(low) tumors after further adjustment for MMR or BRAF(V600E) mutation status. Additionally, these immune markers identified a pMMR subgroup with a similarly favorable OS as for dMMR tumors. CONCLUSIONS The prognostic impact of FoxP3+ and CD8+ T cell density are inter-dependent, whereby FoxP3+ exerts a favorable influence on survival only in colon cancers with low CD8+ infiltration.
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Vizio B, Novarino A, Giacobino A, Cristiano C, Prati A, Ciuffreda L, Montrucchio G, Bellone G. Potential plasticity of T regulatory cells in pancreatic carcinoma in relation to disease progression and outcome. Exp Ther Med 2012; 4:70-78. [PMID: 23060925 DOI: 10.3892/etm.2012.553] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2011] [Accepted: 03/26/2012] [Indexed: 12/13/2022] Open
Abstract
CD4(+)CD25(+)FoxP3(+) regulatory T cells (Tregs) are understood to maintain peripheral tolerance to self-antigens and inhibit antitumor immune responses. However, compelling evidence suggests that, Tregs provide no anti-inflammatory protection in the tumor microenvironment, but rather contribute to a T helper 17 (Th17)-driven pro-carcinogenic process. Using three-color flow cytometry, we evaluated the percentage of circulating CD4(+)CD25(+)FoxP3(+) Tregs in the peripheral blood of pancreatic carcinoma patients prior to and after chemotherapy [gemcitabine (GEM) alone, or GEM+oxaliplatin (GEMOX) or bevacizumab+capecitabine+radiotherapy (BEV+CAPE+RT)]. Correlations were sought between Treg counts and plasma levels of cytokines relevant to controlling the Treg/Th17 balance, i.e., interleukin (IL)-23, IL-17A, IL-6 and transforming growth factor β 1 (TGF-β1), as measured by ELISA and the clinical features of pancreatic cancer. Treg, IL-6 and TGF-β1 levels were higher in locally advanced and metastatic pancreatic carcinoma patients compared to controls. No parameter was correlated with disease stage except IL-6. IL-17A and TGF-β1 were significantly associated with increased risk of poor prognosis. IL-17A was positively correlated with IL-23. Treg and IL-6 levels decreased following GEM monochemotherapy, IL-17A levels decreased after GEMOX, and IL-6 levels were reduced subsequent to BEV+CAPE+RT treatment. IL-23, IL-17A and TGF-β1 levels were significantly lower in patients responding to chemotherapy (partial remission/stable disease) than in nonresponders to chemotherapy (progressive disease). These results suggest an impact of the Treg/Th17-balance in pancreatic carcinoma, highlighting the significance of TGF-β1 and IL-17A as potential prognostic and predictive indicators. Immunological changes induced by mono and/or combined chemotherapy indicate specific windows of opportunity for introducing integrative interventions on a new target in pancreatic cancer, i.e. IL-17A, possibly improving survival in this highly lethal disease.
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Affiliation(s)
- Barbara Vizio
- Department of Clinical Physiopathology, University of Turin
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45
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Hahn JN, Falck VG, Jirik FR. Smad4 deficiency in T cells leads to the Th17-associated development of premalignant gastroduodenal lesions in mice. J Clin Invest 2011; 121:4030-42. [PMID: 21881210 DOI: 10.1172/jci45114] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2010] [Accepted: 07/06/2011] [Indexed: 12/11/2022] Open
Abstract
While there is evidence that specific T cell populations can promote the growth of established tumors, instances where T cell activity causes neoplasms to arise de novo are infrequent. Here, we employed two conditional mutagenesis systems to delete the TGF-β signaling pathway component Smad4 in T cells and observed the spontaneous development of massive polyps within the gastroduodenal regions of mice. The epithelial lesions contained increased levels of transcripts encoding IL-11, IL-6, TGF-β, IL-1β, and TNF-α, and lamina propria cells isolated from lesions contained abundant IL-17A+CD4+ T cells. Furthermore, we found that Smad4 deficiency attenuated TGF-β-mediated in vitro polarization of FoxP3+CD4+ T cells, but not IL-17A+CD4+ T cells, suggesting that the epithelial lesions may have arisen as a consequence of unchecked Th17 cell activity. Proinflammatory cytokine production likely accounted for the raised levels of IL-11, a cytokine known to promote gastric epithelial cell survival and hyperplasia. Consistent with IL-11 having a pathogenic role in this model, we found evidence of Stat3 activation in the gastric polyps. Thus, our data indicate that a chronic increase in gut Th17 cell activity can be associated with the development of premalignant lesions of the gastroduodenal region.
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Affiliation(s)
- Jennifer Nancy Hahn
- Department of Biochemistry and Molecular Biology, The McCaig Institute for Bone and Joint Health, University of Calgary, Calgary, Alberta, Canada
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The potential role of thioredoxin 1 and CD30 systems as multiple pathway targets and biomarkers in tumor therapy. Cancer Immunol Immunother 2011; 60:1373-81. [PMID: 21739118 PMCID: PMC3176405 DOI: 10.1007/s00262-011-1068-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2011] [Accepted: 06/16/2011] [Indexed: 01/19/2023]
Abstract
Our progress in understanding pathological disease mechanisms has led to the identification of biomarkers that have had a considerable impact on clinical practice. It is hoped that the move from generalized to stratified approaches, with the grouping of patients into clinical/therapeutic subgroups according to specific biomarkers, will lead to increasingly more effective clinical treatments in the near future. This success depends on the identification of biomarkers that reflect disease evolution and can be used to predict disease state and therapy response, or represent themselves a target for treatment. Biomarkers can be identified by studying relationships between serum, tissue, or tumor microenvironment parameters and clinical or therapeutic parameters at onset and during the progression of the disease, using systems biology. Given that multiple pathways, such as those responsible for redox and immune regulation, are deregulated or altered in tumors, the future of tumor therapy could lie in the simultaneous targeting of these pathways using extracellular and intracellular targets and biomarkers. With this aim in mind, we evaluated the role of thioredoxin 1, a key redox regulator, and CD30, a cell membrane receptor, in immune regulation. Our results lead us to suggest that the combined use of these biomarkers provides more detailed information concerning the multiple pathways affected in disease and hence the possibility of more effective treatment.
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Mougiakakos D. Regulatory T cells in colorectal cancer: from biology to prognostic relevance. Cancers (Basel) 2011; 3:1708-31. [PMID: 24212779 PMCID: PMC3757386 DOI: 10.3390/cancers3021708] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2010] [Revised: 03/13/2011] [Accepted: 03/21/2011] [Indexed: 01/05/2023] Open
Abstract
Regulatory T cells (Tregs) were initially described as "suppressive" lymphocytes in the 1980s. However, it took almost 20 years until the concept of Treg-mediated immune control in its present form was finally established. Tregs are obligatory for self-tolerance and defects within their population lead to severe autoimmune disorders. On the other hand Tregs may promote tolerance for tumor antigens and even hamper efforts to overcome it. Intratumoral and systemic accumulation of Tregs has been observed in various types of cancer and is often linked to worse disease course and outcome. Increase of circulating Tregs, as well as their presence in mesenteric lymph nodes and tumor tissue of patients with colorectal cancer de facto suggests a strong involvement of Tregs in the antitumor control. This review will focus on the Treg biology in view of colorectal cancer, means of Treg accumulation and the controversies regarding their prognostic significance. In addition, a concise overview will be given on how Tregs and their function can be targeted in cancer patients in order to bolster an inherent immune response and/or increase the efficacy of immunotherapeutic approaches.
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Affiliation(s)
- Dimitrios Mougiakakos
- Department of Oncology and Pathology, Immune and Gene Therapy Unit, Cancer Centre Karolinska, CCK R8:01, 17176 Stockholm, Sweden.
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Fox JG, Ge Z, Whary MT, Erdman SE, Horwitz BH. Helicobacter hepaticus infection in mice: models for understanding lower bowel inflammation and cancer. Mucosal Immunol 2011; 4:22-30. [PMID: 20944559 PMCID: PMC3939708 DOI: 10.1038/mi.2010.61] [Citation(s) in RCA: 139] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Pioneering work in the 1990s first linked a novel microaerobic bacterium, Helicobacter hepaticus, with chronic active hepatitis and inflammatory bowel disease in several murine models. Targeted H. hepaticus infection experiments subsequently demonstrated its ability to induce colitis, colorectal cancer, and extraintestinal diseases in a number of mouse strains with defects in immune function and/or regulation. H. hepaticus is now widely utilized as a model system to dissect how intestinal microbiota interact with the host to produce both inflammatory and tolerogenic responses. This model has been used to make important advances in understanding factors that regulate both acquired and innate immune response within the intestine. Further, it has been an effective tool to help define the function of regulatory T cells, including their ability to directly inhibit the innate inflammatory response to gut microbiota. The complete genomic sequence of H. hepaticus has advanced the identification of several virulence factors and aided in the elucidation of H. hepaticus pathogenesis. Delineating targets of H. hepaticus virulence factors could facilitate novel approaches to treating microbially induced lower bowel inflammatory diseases.
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Affiliation(s)
- JG Fox
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, MA,Corresponding author. Mailing address: Division of Comparative Medicine, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Building 16-825, Cambridge, MA 02139. Phone (617) 253-1735. Fax: (617) 258-5708.
| | - Z Ge
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, MA
| | - MT Whary
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, MA
| | - SE Erdman
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, MA
| | - BH Horwitz
- Department of Pathology, Brigham and Women’s Hospital, Boston, MA
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Bencherif M, Lippiello PM, Lucas R, Marrero MB. Alpha7 nicotinic receptors as novel therapeutic targets for inflammation-based diseases. Cell Mol Life Sci 2010; 68:931-49. [PMID: 20953658 DOI: 10.1007/s00018-010-0525-1] [Citation(s) in RCA: 143] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2010] [Revised: 08/24/2010] [Accepted: 08/30/2010] [Indexed: 12/19/2022]
Abstract
In recent years the etiopathology of a number of debilitating diseases such as type 2 diabetes, arthritis, atherosclerosis, psoriasis, asthma, cystic fibrosis, sepsis, and ulcerative colitis has increasingly been linked to runaway cytokine-mediated inflammation. Cytokine-based therapeutic agents play a major role in the treatment of these diseases. However, the temporospatial changes in various cytokines are still poorly understood and attempts to date have focused on the inhibition of specific cytokines such as TNF-α. As an alternative approach, a number of preclinical studies have confirmed the therapeutic potential of targeting alpha7 nicotinic acetylcholine receptor-mediated anti-inflammatory effects through modulation of proinflammatory cytokines. This "cholinergic anti-inflammatory pathway" modulates the immune system through cholinergic mechanisms that act on alpha7 receptors expressed on macrophages and immune cells. If the preclinical findings translate into human efficacy this approach could potentially provide new therapies for treating a broad array of intractable diseases and conditions with inflammatory components.
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Abstract
Chronic inflammation is essential for cancer growth and metastasis. It follows that factors reducing inflammation would abrogate cancer and restore tissue health. However, roles for anti-inflammatory CD4+ regulatory cells (T(REG)) in cancer are enigmatic and controversial. Our recent data reveal that T(REG) may function in cancer similarly to inflammatory bowel disease or multiple sclerosis, whereby T(REG) accumulate but lack potency to restore tissue homeostasis under inflammatory conditions. Interestingly, early life exposures to diverse environmental organisms reinforce a protective T(REG) phenotype that inhibits cancer. In contrast, hygienic individuals with few exposures earlier in life suffer from a dysregulated T(REG) feedback loop. Consequently, hygienic subjects have increased risk of malignancy later in life. This cancer condition is reversible by blocking underlying inflammation. Taken together, these data help explain increased inflammation-associated cancer rates in hygienic societies and identify targets to abrogate cancer and restore overall health.
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Affiliation(s)
- Susan E Erdman
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, MA 02139, USA.
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