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Mannavola F, Salerno T, Passarelli A, Tucci M, Internò V, Silvestris F. Revisiting the Role of Exosomes in Colorectal Cancer: Where Are We Now?. Front Oncol 2019; 9:521. [PMID: 31275854 PMCID: PMC6593071 DOI: 10.3389/fonc.2019.00521] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2019] [Accepted: 05/30/2019] [Indexed: 12/11/2022] Open
Abstract
Exosomes (Exos) are nano-sized extracellular vesicles constitutively released by both prokaryotic and eukaryotic cells. Their role as inter-cellular messengers involved in both physiological and pathological processes has overwhelmingly come to light in the last decade, and their contribution to cancerogenesis and tumor metastasis is under intensive investigation. Here we review the most recent information concerning Exos in colorectal cancer (CRC) and focus on their effects on tumor microenvironment and the immune system, as well as unravel their role in the formation of the pre-metastatic niche and in drug resistance. Such a recent knowledge on Exos depicts their potential translations into the clinical arena, either as an alternative tool of “liquid biopsy” or novel therapeutic approaches for CRC. However, due to the limited data available from clinical trials, they need further validations before addressing their putative application in oncology.
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Affiliation(s)
- Francesco Mannavola
- Department of Biomedical Sciences and Human Oncology, University of Bari Aldo Moro, Bari, Italy
| | - Tina Salerno
- Department of Biomedical Sciences and Human Oncology, University of Bari Aldo Moro, Bari, Italy
| | - Anna Passarelli
- Department of Biomedical Sciences and Human Oncology, University of Bari Aldo Moro, Bari, Italy
| | - Marco Tucci
- Department of Biomedical Sciences and Human Oncology, University of Bari Aldo Moro, Bari, Italy
| | - Valeria Internò
- Department of Biomedical Sciences and Human Oncology, University of Bari Aldo Moro, Bari, Italy
| | - Francesco Silvestris
- Department of Biomedical Sciences and Human Oncology, University of Bari Aldo Moro, Bari, Italy
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102
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Siveen KS, Raza A, Ahmed EI, Khan AQ, Prabhu KS, Kuttikrishnan S, Mateo JM, Zayed H, Rasul K, Azizi F, Dermime S, Steinhoff M, Uddin S. The Role of Extracellular Vesicles as Modulators of the Tumor Microenvironment, Metastasis and Drug Resistance in Colorectal Cancer. Cancers (Basel) 2019; 11:cancers11060746. [PMID: 31146452 PMCID: PMC6628238 DOI: 10.3390/cancers11060746] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2019] [Revised: 05/22/2019] [Accepted: 05/24/2019] [Indexed: 12/13/2022] Open
Abstract
Colorectal cancer (CRC) is one of the most common cancers worldwide, with high morbidity and mortality rates. A number of factors including modulation of the tumor microenvironment, high metastatic capability, and resistance to treatment have been associated with CRC disease progression. Recent studies have documented that tumor-derived extracellular vesicles (EVs) play a significant role in intercellular communication in CRC via transfer of cargo lipids, proteins, DNA and RNAs to the recipient tumor cells. This transfer influences a number of immune-related pathways leading to activation/differentiation/expression of immune cells and modulation of the tumor microenvironment that plays a significant role in CRC progression, metastasis, and drug resistance. Furthermore, tumor-derived EVs are secreted in large amounts in biological fluids of CRC patients and as such the expression analysis of EV cargoes have been associated with prognosis or response to therapy and may be a source of therapeutic targets. This review aims to provide a comprehensive insight into the role of EVs in the modulation of the tumor microenvironment and its effects on CRC progression, metastasis, and drug resistance. On the other hand, the potential role of CRC derived EVs as a source of biomarkers of response and therapeutic targets will be discussed in detail to understand the dynamic role of EVs in CRC diagnosis, treatment, and management.
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Affiliation(s)
- Kodappully S Siveen
- Academic Health System, Translational Research Institute, Hamad Medical Corporation, Doha P.O. Box 3050, Qatar.
| | - Afsheen Raza
- National Center for Cancer Care and Research, Hamad Medical Corporation, Doha P.O. Box 3050, Qatar.
| | - Eiman I Ahmed
- Academic Health System, Translational Research Institute, Hamad Medical Corporation, Doha P.O. Box 3050, Qatar.
| | - Abdul Q Khan
- Academic Health System, Translational Research Institute, Hamad Medical Corporation, Doha P.O. Box 3050, Qatar.
| | - Kirti S Prabhu
- Academic Health System, Translational Research Institute, Hamad Medical Corporation, Doha P.O. Box 3050, Qatar.
| | - Shilpa Kuttikrishnan
- Academic Health System, Translational Research Institute, Hamad Medical Corporation, Doha P.O. Box 3050, Qatar.
| | - Jericha M Mateo
- Academic Health System, Translational Research Institute, Hamad Medical Corporation, Doha P.O. Box 3050, Qatar.
| | - Hatem Zayed
- College of Health Sciences, Department of Biomedical Sciences, Qatar University, Doha P.O. Box 2713, Qatar.
| | - Kakil Rasul
- National Center for Cancer Care and Research, Hamad Medical Corporation, Doha P.O. Box 3050, Qatar.
| | - Fouad Azizi
- Academic Health System, Translational Research Institute, Hamad Medical Corporation, Doha P.O. Box 3050, Qatar.
| | - Said Dermime
- National Center for Cancer Care and Research, Hamad Medical Corporation, Doha P.O. Box 3050, Qatar.
| | - Martin Steinhoff
- Academic Health System, Translational Research Institute, Hamad Medical Corporation, Doha P.O. Box 3050, Qatar.
- Department of Dermatology Venereology, Hamad Medical Corporation, Doha, P.O. Box 3050, Qatar.
- Weill Cornell-Medicine, Doha P.O. Box 24811, Qatar.
- Weill Cornell University, New York, NY 10065, USA.
| | - Shahab Uddin
- Academic Health System, Translational Research Institute, Hamad Medical Corporation, Doha P.O. Box 3050, Qatar.
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103
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Yang X, Li Y, Zou L, Zhu Z. Role of Exosomes in Crosstalk Between Cancer-Associated Fibroblasts and Cancer Cells. Front Oncol 2019; 9:356. [PMID: 31131261 PMCID: PMC6510008 DOI: 10.3389/fonc.2019.00356] [Citation(s) in RCA: 117] [Impact Index Per Article: 23.4] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2019] [Accepted: 04/17/2019] [Indexed: 12/21/2022] Open
Abstract
Cancer-associated fibroblasts (CAFs) are important cells of the tumor microenvironment that can communicate with tumor cells through various mechanisms. Recently, increasing studies have found that exosomes transmit biological information by carrying microRNAs, lncRNAs, proteins, metabolites, and other substances, and thus exert biological and therapeutic effects. CAF-secreted exosomes can also affect the tumor phenotype, while the exosomes released by tumor cells can activate CAFs. Here, we review the role of exosomes in the crosstalk between CAFs and tumor cells and elaborate its mechanism.
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Affiliation(s)
- Xi Yang
- Department of Radiation Oncology, Fudan University Shanghai Cancer Center, Fudan University, Shanghai, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Yida Li
- Department of Radiation Oncology, Fudan University Shanghai Cancer Center, Fudan University, Shanghai, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Liqing Zou
- Department of Radiation Oncology, Fudan University Shanghai Cancer Center, Fudan University, Shanghai, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Zhengfei Zhu
- Department of Radiation Oncology, Fudan University Shanghai Cancer Center, Fudan University, Shanghai, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
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104
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Targeting Tumor Microenvironment for Cancer Therapy. Int J Mol Sci 2019; 20:ijms20040840. [PMID: 30781344 PMCID: PMC6413095 DOI: 10.3390/ijms20040840] [Citation(s) in RCA: 717] [Impact Index Per Article: 143.4] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2019] [Revised: 02/12/2019] [Accepted: 02/13/2019] [Indexed: 02/07/2023] Open
Abstract
Cancer development is highly associated to the physiological state of the tumor microenvironment (TME). Despite the existing heterogeneity of tumors from the same or from different anatomical locations, common features can be found in the TME maturation of epithelial-derived tumors. Genetic alterations in tumor cells result in hyperplasia, uncontrolled growth, resistance to apoptosis, and metabolic shift towards anaerobic glycolysis (Warburg effect). These events create hypoxia, oxidative stress and acidosis within the TME triggering an adjustment of the extracellular matrix (ECM), a response from neighbor stromal cells (e.g., fibroblasts) and immune cells (lymphocytes and macrophages), inducing angiogenesis and, ultimately, resulting in metastasis. Exosomes secreted by TME cells are central players in all these events. The TME profile is preponderant on prognosis and impacts efficacy of anti-cancer therapies. Hence, a big effort has been made to develop new therapeutic strategies towards a more efficient targeting of TME. These efforts focus on: (i) therapeutic strategies targeting TME components, extending from conventional therapeutics, to combined therapies and nanomedicines; and (ii) the development of models that accurately resemble the TME for bench investigations, including tumor-tissue explants, “tumor on a chip” or multicellular tumor-spheroids.
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