51
|
Fu C, Lu Y, Williams MA, Brantly ML, Ventetuolo CE, Morel LM, Mehrad B, Scott EW, Bryant AJ. Emergency myelopoiesis contributes to immune cell exhaustion and pulmonary vascular remodelling. Br J Pharmacol 2020; 178:187-202. [PMID: 31793661 PMCID: PMC8240454 DOI: 10.1111/bph.14945] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2019] [Revised: 10/04/2019] [Accepted: 11/18/2019] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND AND PURPOSE Pulmonary hypertension (PH) secondary to chronic lung disease (World Health Organization Group 3 PH) is deadly, with lung transplant being the only available long-term treatment option. Myeloid-derived cells are known to affect progression of both pulmonary fibrosis and PH, although the mechanism of action is unknown. Therefore, we investigated the effect of myeloid cell proliferation induced by emergency myelopoiesis on development of PH and therapy directed against programmed death-ligand 1 (PD-L1), expressed by myeloid cells in prevention of pulmonary vascular remodelling. EXPERIMENTAL APPROACH LysM.Cre-DTR ("mDTR") mice were injected with bleomycin (0.018 U·g-1 , i.p.) while receiving either vehicle or diphtheria toxin (DT; 100 ng, i.p.) to induce severe PH. Approximately 4 weeks after initiation of bleomycin protocol, right ventricular pressure measurements were performed and tissue samples collected for histologic assessment. In a separate experiment, DT-treated mice were given anti-PD-L1 antibody (αPD-L1; 500 μg, i.p.) preventive treatment before bleomycin administration. KEY RESULTS Mice undergoing induction of emergency myelopoiesis displayed more severe PH, right ventricular remodelling and pulmonary vascular muscularization compared to controls, without a change in lung fibrosis. This worsening of PH was associated with increased pulmonary myeloid-derived suppressor cell (MDSC), particularly polymorphonuclear MDSC (PMN-MDSC). Treatment with αPD-L1 normalized pulmonary pressures. PD-L1 expression was likewise found to be elevated on circulating PMN-MDSC from patients with interstitial lung disease and PH. CONCLUSIONS AND IMPLICATIONS PD-L1 is a viable therapeutic target in PH, acting through a signalling axis involving MDSC. LINKED ARTICLES This article is part of a themed issue on Risk factors, comorbidities, and comedications in cardioprotection. To view the other articles in this section visit http://onlinelibrary.wiley.com/doi/10.1111/bph.v178.1/issuetoc.
Collapse
Affiliation(s)
- Chunhua Fu
- Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Medicine, College of Medicine, University of Florida, Gainesville, Florida
| | - Yuanqing Lu
- Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Medicine, College of Medicine, University of Florida, Gainesville, Florida
| | - Mason A Williams
- Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Medicine, College of Medicine, University of Florida, Gainesville, Florida
| | - Mark L Brantly
- Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Medicine, College of Medicine, University of Florida, Gainesville, Florida
| | - Corey E Ventetuolo
- Division of Pulmonary, Critical Care and Sleep Medicine, Alpert Medical School of Brown University, Providence, Rhode Island
| | - Laurence M Morel
- Department of Pathology, Immunology and Laboratory Medicine, University of Florida College of Medicine, University of Florida, Gainesville, Florida
| | - Borna Mehrad
- Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Medicine, College of Medicine, University of Florida, Gainesville, Florida
| | - Edward W Scott
- Department of Molecular Genetics and Microbiology, University of Florida College of Medicine, University of Florida, Gainesville, Florida
| | - Andrew J Bryant
- Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Medicine, College of Medicine, University of Florida, Gainesville, Florida.,Department of Molecular Genetics and Microbiology, University of Florida College of Medicine, University of Florida, Gainesville, Florida
| |
Collapse
|
52
|
Abstract
Most cancers arise in individuals over the age of 60. As the world population is living longer and reaching older ages, cancer is becoming a substantial public health problem. It is estimated that, by 2050, more than 20% of the world's population will be over the age of 60 - the economic, healthcare and financial burdens this may place on society are far from trivial. In this Review, we address the role of the ageing microenvironment in the promotion of tumour progression. Specifically, we discuss the cellular and molecular changes in non-cancerous cells during ageing, and how these may contribute towards a tumour permissive microenvironment; these changes encompass biophysical alterations in the extracellular matrix, changes in secreted factors and changes in the immune system. We also discuss the contribution of these changes to responses to cancer therapy as ageing predicts outcomes of therapy, including survival. Yet, in preclinical studies, the contribution of the aged microenvironment to therapy response is largely ignored, with most studies designed in 8-week-old mice rather than older mice that reflect an age appropriate to the disease being modelled. This may explain, in part, the failure of many successful preclinical therapies upon their translation to the clinic. Overall, the intention of this Review is to provide an overview of the interplay that occurs between ageing cell types in the microenvironment and cancer cells and how this is likely to impact tumour metastasis and therapy response.
Collapse
Affiliation(s)
- Mitchell Fane
- The Wistar Institute, Immunology, Microenvironment and Metastasis Program, Philadelphia, PA, USA.
- Department of Biochemistry and Molecular Biology, Johns Hopkins School of Public Health, Baltimore, MD, USA.
| | - Ashani T Weeraratna
- The Wistar Institute, Immunology, Microenvironment and Metastasis Program, Philadelphia, PA, USA.
- Department of Biochemistry and Molecular Biology, Johns Hopkins School of Public Health, Baltimore, MD, USA.
- Department of Oncology, Johns Hopkins School of Medicine, Baltimore, MD, USA.
| |
Collapse
|
53
|
Ria R, Vacca A. Bone Marrow Stromal Cells-Induced Drug Resistance in Multiple Myeloma. Int J Mol Sci 2020; 21:ijms21020613. [PMID: 31963513 PMCID: PMC7013615 DOI: 10.3390/ijms21020613] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2019] [Revised: 01/12/2020] [Accepted: 01/14/2020] [Indexed: 01/06/2023] Open
Abstract
Multiple myeloma is a B-cell lineage cancer in which neoplastic plasma cells expand in the bone marrow and pathophysiological interactions with components of microenvironment influence many biological aspects of the malignant phenotype, including apoptosis, survival, proliferation, and invasion. Despite the therapeutic progress achieved in the last two decades with the introduction of a more effective and safe new class of drugs (i.e., immunomodulators, proteasome inhibitors, monoclonal antibodies), there is improvement in patient survival, and multiple myeloma (MM) remains a non-curable disease. The bone marrow microenvironment is a complex structure composed of cells, extracellular matrix (ECM) proteins, and cytokines, in which tumor plasma cells home and expand. The role of the bone marrow (BM) microenvironment is fundamental during MM disease progression because modification induced by tumor plasma cells is crucial for composing a "permissive" environment that supports MM plasma cells proliferation, migration, survival, and drug resistance. The "activated phenotype" of the microenvironment of multiple myeloma is functional to plasma cell proliferation and spreading and to plasma cell drug resistance. Plasma cell drug resistance induced by bone marrow stromal cells is mediated by stress-managing pathways, autophagy, transcriptional rewiring, and non-coding RNAs dysregulation. These processes represent novel targets for the ever-increasing anti-MM therapeutic armamentarium.
Collapse
Affiliation(s)
- Roberto Ria
- Correspondence: ; Tel.: +39-080-559-31-06; Fax: +39-080-559-38-04
| | | |
Collapse
|
54
|
Myeloid-driven mechanisms as barriers to antitumor CD8 + T cell activity. Mol Immunol 2019; 118:165-173. [PMID: 31884388 DOI: 10.1016/j.molimm.2019.12.012] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2019] [Revised: 12/10/2019] [Accepted: 12/17/2019] [Indexed: 12/16/2022]
Abstract
The adaptive immune system is essential for host defense against pathogenic challenges, and a major constituent is the CD8+ cytotoxic T cell. Ordinarily, CD8+ T cells are endowed with a unique ability to specifically recognize and destroy their targets. However, in cases where disease emerges, especially in cancer, the efficacy of the CD8+ T cell response is frequently counterbalanced in a 'tug-of-war' by networks of tumor-driven mechanisms of immune suppression. As a result, antitumor CD8+ T cell activity is hampered, which contributes to clinical manifestations of disease. It is now well-recognized that prominent elements of that network include myeloid-derived suppressor cells (MDSC) and macrophages which assume tumor-supportive phenotypes. Both myeloid populations are thought to arise as consequences of chronic inflammatory cues produced during the neoplastic process. Numerous preclinical studies have now shown that inhibiting the production, trafficking and/or function of these immune suppressive myeloid populations restore antitumor CD8+ T cell responses during both immune surveillance or in response to immune-targeted interventions. Correlative studies in cancer patients support these preclinical findings and, thus, have laid the foundation for ongoing clinical trials in patients receiving novel agents that target such myeloid elements alone or in combination with immunotherapy to potentially improve cancer patient outcomes. Accordingly, this review focuses on how and why it is important to study the myeloid-T cell interplay as an innovative strategy to boost or reinvigorate the CD8+ T cell response as a critical weapon in the battle against malignancy.
Collapse
|
55
|
Monocytic Myeloid Derived Suppressor Cells in Hematological Malignancies. Int J Mol Sci 2019; 20:ijms20215459. [PMID: 31683978 PMCID: PMC6862591 DOI: 10.3390/ijms20215459] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2019] [Revised: 10/27/2019] [Accepted: 10/30/2019] [Indexed: 12/13/2022] Open
Abstract
In the era of novel agents and immunotherapies in solid and liquid tumors, there is an emerging need to understand the cross-talk between the neoplastic cells, the host immune system, and the microenvironment to mitigate proliferation, survival, migration and resistance to drugs. In the microenvironment of hematological tumors there are cells belonging to the normal bone marrow, extracellular matrix proteins, adhesion molecules, cytokines, and growth factors produced by both stromal cells and neoplastic cells themselves. In this context, myeloid suppressor cells are an emerging sub-population of regulatory myeloid cells at different stages of differentiation involved in cancer progression and chronic inflammation. In this review, monocytic myeloid derived suppressor cells and their potential clinical implications are discussed to give a comprehensive vision of their contribution to lymphoproliferative and myeloid disorders.
Collapse
|
56
|
Palumbo GA, Parrinello NL, Giallongo C, D'Amico E, Zanghì A, Puglisi F, Conticello C, Chiarenza A, Tibullo D, Raimondo FD, Romano A. Monocytic Myeloid Derived Suppressor Cells in Hematological Malignancies. Int J Mol Sci 2019. [PMID: 31683978 DOI: 10.3390/ijms20215459.pmid:31683978;pmcid:pmc6862591] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/09/2023] Open
Abstract
In the era of novel agents and immunotherapies in solid and liquid tumors, there is an emerging need to understand the cross-talk between the neoplastic cells, the host immune system, and the microenvironment to mitigate proliferation, survival, migration and resistance to drugs. In the microenvironment of hematological tumors there are cells belonging to the normal bone marrow, extracellular matrix proteins, adhesion molecules, cytokines, and growth factors produced by both stromal cells and neoplastic cells themselves. In this context, myeloid suppressor cells are an emerging sub-population of regulatory myeloid cells at different stages of differentiation involved in cancer progression and chronic inflammation. In this review, monocytic myeloid derived suppressor cells and their potential clinical implications are discussed to give a comprehensive vision of their contribution to lymphoproliferative and myeloid disorders.
Collapse
Affiliation(s)
- Giuseppe Alberto Palumbo
- Division of Hematology, AOU "Policlinico-Vittorio Emanuele", 95125 Catania, Italy.
- Department of Clinical and Molecular Biomedicine Ingrassia, University of Catania, 95125 Catania, Italy.
| | - Nunziatina Laura Parrinello
- Division of Hematology, AOU "Policlinico-Vittorio Emanuele", 95125 Catania, Italy.
- Department of Clinical and Molecular Biomedicine Ingrassia, University of Catania, 95125 Catania, Italy.
| | - Cesarina Giallongo
- Division of Hematology, AOU "Policlinico-Vittorio Emanuele", 95125 Catania, Italy.
| | - Emanuele D'Amico
- Department of Clinical and Molecular Biomedicine Ingrassia, University of Catania, 95125 Catania, Italy.
| | - Aurora Zanghì
- Department of Clinical and Molecular Biomedicine Ingrassia, University of Catania, 95125 Catania, Italy.
| | - Fabrizio Puglisi
- Division of Hematology, AOU "Policlinico-Vittorio Emanuele", 95125 Catania, Italy.
- Dipartimento di Chirurgia generale e specialità medico-chirurgiche, CHIRMED, University of Catania, 95125 Catania, Italy.
| | - Concetta Conticello
- Division of Hematology, AOU "Policlinico-Vittorio Emanuele", 95125 Catania, Italy.
| | - Annalisa Chiarenza
- Division of Hematology, AOU "Policlinico-Vittorio Emanuele", 95125 Catania, Italy.
| | - Daniele Tibullo
- BIOMETEC, Dipartimento di Scienze Biomediche e Biotecnologiche, University of Catania, 95125 Catania, Italy.
| | - Francesco Di Raimondo
- Division of Hematology, AOU "Policlinico-Vittorio Emanuele", 95125 Catania, Italy.
- Dipartimento di Chirurgia generale e specialità medico-chirurgiche, CHIRMED, University of Catania, 95125 Catania, Italy.
| | - Alessandra Romano
- Division of Hematology, AOU "Policlinico-Vittorio Emanuele", 95125 Catania, Italy.
- Dipartimento di Chirurgia generale e specialità medico-chirurgiche, CHIRMED, University of Catania, 95125 Catania, Italy.
| |
Collapse
|
57
|
Lv M, Wang K, Huang XJ. Myeloid-derived suppressor cells in hematological malignancies: friends or foes. J Hematol Oncol 2019; 12:105. [PMID: 31640764 PMCID: PMC6805310 DOI: 10.1186/s13045-019-0797-3] [Citation(s) in RCA: 73] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2019] [Accepted: 09/25/2019] [Indexed: 12/25/2022] Open
Abstract
Myeloid-derived suppressor cells (MDSCs) are newly identified immature myeloid cells that are characterized by the ability to suppress immune responses and expand during cancer, infection, and inflammatory diseases. Although MDSCs have attracted a lot of attention in the field of tumor immunology in recent years, little is known about their multiple roles in hematological malignancies as opposed to their roles in solid tumors. This review will help researchers better understand the various characteristics and functions of MDSCs, as well as the potential therapeutic applications of MDSCs in hematological malignancies, including lymphoma, multiple myeloma, leukemia, and hematopoietic stem cell transplantation.
Collapse
Affiliation(s)
- Meng Lv
- Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing Key Laboratory of HSCT, No 11 Xizhimen South Street, Beijing, 100044, China
| | - Ke Wang
- Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing Key Laboratory of HSCT, No 11 Xizhimen South Street, Beijing, 100044, China
| | - Xiao-Jun Huang
- Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing Key Laboratory of HSCT, No 11 Xizhimen South Street, Beijing, 100044, China. .,Peking-Tsinghua Center for Life Sciences, Beijing, China.
| |
Collapse
|
58
|
Giallongo C, Tibullo D, Camiolo G, Parrinello NL, Romano A, Puglisi F, Barbato A, Conticello C, Lupo G, Anfuso CD, Lazzarino G, Li Volti G, Palumbo GA, Di Raimondo F. TLR4 signaling drives mesenchymal stromal cells commitment to promote tumor microenvironment transformation in multiple myeloma. Cell Death Dis 2019; 10:704. [PMID: 31541083 PMCID: PMC6754430 DOI: 10.1038/s41419-019-1959-5] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2019] [Revised: 09/04/2019] [Accepted: 09/05/2019] [Indexed: 02/06/2023]
Abstract
Inflammation represents a key feature and hallmark of tumor microenvironment playing a major role in the interaction with mesenchymal stromal cells (MSC) in cancer progression. The aim of the present study was to investigate the crosstalk between MSCs and myeloma cells (MM) in the pro-inflammatory microenvironment promoting immune evasion and tumor growth. MSC were collected from patients with diagnosis of MGUS (n = 10), smoldering myeloma (n = 7), multiple myeloma at diagnosis (n = 16), relapse (n = 5) or refractory (n = 3), and from age-matched healthy controls (HC, n = 10) and cultured with peripheral blood mononucleated cells (PBMC) from healthy volunteer donors. Similarly to MM, we showed that MSC from smoldering multiple myeloma (SMM) patients activated neutrophils and conferred an immunosuppressive and pro-angiogenic phenotype. Furthermore, co-cultures of plasma cells (PC) and HC-MSC suggested that such activation is driven by MM cells through the switching into a pro-inflammatory phenotype mediated by toll-like receptor 4 (TLR4). These results were further confirmed using a zebrafish as an immunocompetent in vivo model, showing the role of MM-MSC in supporting PCs engraftment and Th2 response. Such effect was abolished following inhibition of TLR4 signaling in MM-MSC before co-injection with PC. Moreover, the addition of a TLR4 inhibitor in the co-culture of HC-MSC with MM cells prevented the activation of the pro-tumor activity in PC-educated MSC. In conclusion, our study provides evidence that TLR4 signaling plays a key role in MSC transformation by inducing a pro-tumor phenotype associated with a permissive microenvironment allowing immune escape and tumor growth.
Collapse
Affiliation(s)
- Cesarina Giallongo
- Section of Haematology, Department of General Surgery and Medical-Surgical Specialties, University of Catania, Catania, Italy
| | - Daniele Tibullo
- Department of Biomedical and Biotechnological Sciences, University of Catania, Catania, Italy.
- EuroMediterranean Institute of Science and Technology, Palermo, Italy.
| | - Giuseppina Camiolo
- Department of Biomedical and Biotechnological Sciences, University of Catania, Catania, Italy
| | - Nunziatina L Parrinello
- Section of Haematology, Department of General Surgery and Medical-Surgical Specialties, University of Catania, Catania, Italy
| | - Alessandra Romano
- Section of Haematology, Department of General Surgery and Medical-Surgical Specialties, University of Catania, Catania, Italy
| | - Fabrizio Puglisi
- Section of Haematology, Department of General Surgery and Medical-Surgical Specialties, University of Catania, Catania, Italy
| | - Alessandro Barbato
- Section of Haematology, Department of General Surgery and Medical-Surgical Specialties, University of Catania, Catania, Italy
| | - Concetta Conticello
- Section of Haematology, Department of General Surgery and Medical-Surgical Specialties, University of Catania, Catania, Italy
| | - Gabriella Lupo
- Department of Biomedical and Biotechnological Sciences, University of Catania, Catania, Italy
| | | | - Giacomo Lazzarino
- Institute of Biochemistry and Clinical Biochemistry, Catholic University of Rome, Largo F. Vito 1, 00168, Rome, Italy
| | - Giovanni Li Volti
- Department of Biomedical and Biotechnological Sciences, University of Catania, Catania, Italy.
- EuroMediterranean Institute of Science and Technology, Palermo, Italy.
| | - Giuseppe Alberto Palumbo
- Department of Medical, Surgical Sciences and Advanced Technologies "G. F. Ingrassia", University of Catania, Catania, Italy
| | - Francesco Di Raimondo
- Section of Haematology, Department of General Surgery and Medical-Surgical Specialties, University of Catania, Catania, Italy
| |
Collapse
|
59
|
Chai E, Zhang L, Li C. LOX-1+ PMN-MDSC enhances immune suppression which promotes glioblastoma multiforme progression. Cancer Manag Res 2019; 11:7307-7315. [PMID: 31447588 PMCID: PMC6683959 DOI: 10.2147/cmar.s210545] [Citation(s) in RCA: 58] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2019] [Accepted: 06/06/2019] [Indexed: 12/28/2022] Open
Abstract
Background/aims Patients with glioblastoma multiforme (GBM) that is the most common brain cancer in adults have a rather poor prognosis. The accumulation of immune suppressive myeloid-derived suppressor cell (MDSC) is negatively associated with clinical outcomes in various cancers. A recent study identified that lectin-type oxidized LDL receptor 1 (LOX-1) may serve as a specific marker of human polymorphonuclear neutrophil (PMN)-MDSC. Thus, herein we focused on exploring the role of LOX-1+ PMN-MDSC in GBM progression. Methods LOX-1, IFN-γ, dichlorodihydrofluorescein diacetate (DCFDA), CD15, CD4 and CD8 expression levels were examined by flow cytometry. ARG1 and iNOS expression levels in PMN were examined by quantitative real-time PCR. LOX-1 and CD15 expression levels in tumor tissue were determined by immunofluorescent microscopy. T cell proliferation was determined by 3H-thymidine incorporation. Results We identified a protumorigenic subset of PMN, which constitutively expressed LOX-1 and accumulated in the peripheral blood of GBM patients. Compared to LOX-1− PMN, the LOX-1+ PMN exhibited a PMN MDSC profile, with a significant increase in the expression of DCFDA, ARG1 and iNOS, and the capacity of inhibiting the CD3+ T cell proliferation in a dependent-ARG1/iNOS way. Additionally, we found that LOX-1+ PMN negatively correlated with effector immune cells in GBM patients, accumulated in GBM tissues, and was related to early recurrence and disease progression tightly. Conclusion Our study revealed that LOX-1+ PMN-MDSC inhibited the T cell proliferation to enhance immune suppression, which may play a key role in driving the GBM progression.
Collapse
Affiliation(s)
- ErQing Chai
- Department of Neurosurgery, Gansu Provincial Hospital, Lanzhou 730000, People's Republic of China.,Cerebral Vascular Disease Center, Gansu Provincial Hospital, Lanzhou 730000, People's Republic of China
| | - Lan Zhang
- Tuberculosis Prevention and Control Department, Gansu Province Center for Disease Control and Prevention, Lanzhou 730000, People's Republic of China
| | - Changqing Li
- Neurosurgery Department, Gansu University of Chinese Medicine, Lanzhou 730000, People's Republic of China
| |
Collapse
|
60
|
Zhou Z, Chen J, Yao H, Hu H. Fusobacterium and Colorectal Cancer. Front Oncol 2018; 8:371. [PMID: 30374420 PMCID: PMC6196248 DOI: 10.3389/fonc.2018.00371] [Citation(s) in RCA: 79] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2018] [Accepted: 08/21/2018] [Indexed: 12/11/2022] Open
Abstract
Colorectal cancer (CRC) is the third most common cancer worldwide and its pathogenesis has been extensively explored over the past decades. Recently, microorganisms in the gastrointestinal tract have emerged as potential etiological agents. In particular, a direct proportional association between Fusobacterium and CRC has been described. Since then, the functional impact of Fusobacterium in CRC development has been studied using various mouse models. Although some epidemiologic studies did not establish an obvious relationship between Fusobacterium and CRC, numerous pathogenic mechanisms leading to the disease have been described. For instance, Fusobacterium can activate the E-cadherin/β-catenin signaling pathway and is associated with particular epigenetic phenotype, such as microsatellite instability (MSI) and hypermethylation, via its strong adhesive and invasive abilities resulting in malignant transformation of epithelial cells. Also, Fusobacterium could alter the tumor microenvironment (TME) significantly by myeloid-derived suppressor cells (MDSCs), tumor associated macrophages (TAMs), and tumor associated neutrophils (TANs) recruitment and local immune suppression. Herein, we provide an in-depth review of the relationship between Fusobacterium and colorectal cancer. In light of the emergence of microbiome-based therapeutics, potential therapies and preventive strategies for colorectal cancer related to Fusobacterium are also discussed.
Collapse
Affiliation(s)
- Ziwei Zhou
- Department of Oncology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Jiewen Chen
- Breast Tumor Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Herui Yao
- Department of Oncology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Hai Hu
- Department of Oncology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
| |
Collapse
|