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Wang Z, Wang Q, Qin F, Chen J. Exosomes: a promising avenue for cancer diagnosis beyond treatment. Front Cell Dev Biol 2024; 12:1344705. [PMID: 38419843 PMCID: PMC10900531 DOI: 10.3389/fcell.2024.1344705] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2023] [Accepted: 01/31/2024] [Indexed: 03/02/2024] Open
Abstract
Exosomes, extracellular vesicles secreted by cells, have garnered significant attention in recent years for their remarkable therapeutic potential. These nanoscale carriers can be harnessed for the targeted delivery of therapeutic agents, such as pharmaceuticals, proteins, and nucleic acids, across biological barriers. This versatile attribute of exosomes is a promising modality for precision medicine applications, notably in the realm of cancer therapy. However, despite their substantial therapeutic potential, exosomes still confront challenges tied to standardization and scalability that impede their practice in clinical applications. Moreover, heterogeneity in isolation methodologies and limited cargo loading mechanisms pose obstacles to ensuring consistent outcomes, thereby constraining their therapeutic utility. In contrast, exosomes exhibit a distinct advantage in cancer diagnosis, as they harbor specific signatures reflective of the tumor's genetic and proteomic profile. This characteristic endows them with the potential to serve as valuable liquid biopsies for non-invasive and real-time monitoring, making possible early cancer detection for the development of personalized treatment strategies. In this review, we provide an extensive evaluation of the advancements in exosome research, critically examining their advantages and limitations in the context of cancer therapy and early diagnosis. Furthermore, we present a curated overview of the most recent technological innovations utilizing exosomes, with a focus on enhancing the efficacy of early cancer detection.
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Affiliation(s)
- Zhu Wang
- Breast Center, West China Hospital, Sichuan University, Chengdu, China
- Department of General Surgery, West China Hospital, Sichuan University, Chengdu, China
- Institute for Breast Health Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Qianqian Wang
- Department of Oncology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Feng Qin
- School of Basic Medicine, Dali University, Dali, Yunnan, China
| | - Jie Chen
- Breast Center, West China Hospital, Sichuan University, Chengdu, China
- Department of General Surgery, West China Hospital, Sichuan University, Chengdu, China
- Institute for Breast Health Medicine, West China Hospital, Sichuan University, Chengdu, China
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Li X, Liu H, Wang F, Yuan J, Guan W, Xu G. Prediction Model for Therapeutic Responses in Ovarian Cancer Patients using Paclitaxel-resistant Immune-related lncRNAs. Curr Med Chem 2024; 31:4213-4231. [PMID: 38357948 PMCID: PMC11340295 DOI: 10.2174/0109298673281438231217151129] [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: 09/09/2023] [Revised: 11/09/2023] [Accepted: 11/16/2023] [Indexed: 02/16/2024]
Abstract
BACKGROUND Ovarian cancer (OC) is the deadliest malignant tumor in women with a poor prognosis due to drug resistance and lack of prediction tools for therapeutic responses to anti- cancer drugs. OBJECTIVE The objective of this study was to launch a prediction model for therapeutic responses in OC patients. METHODS The RNA-seq technique was used to identify differentially expressed paclitaxel (PTX)- resistant lncRNAs (DE-lncRNAs). The Cancer Genome Atlas (TCGA)-OV and ImmPort database were used to obtain immune-related lncRNAs (ir-lncRNAs). Univariate, multivariate, and LASSO Cox regression analyses were performed to construct the prediction model. Kaplan- meier plotter, Principal Component Analysis (PCA), nomogram, immune function analysis, and therapeutic response were applied with Genomics of Drug Sensitivity in Cancer (GDSC), CIBERSORT, and TCGA databases. The biological functions were evaluated in the CCLE database and OC cells. RESULTS The RNA-seq defined 186 DE-lncRNAs between PTX-resistant A2780-PTX and PTXsensitive A2780 cells. Through the analysis of the TCGA-OV database, 225 ir-lncRNAs were identified. Analyzing 186 DE-lncRNAs and 225 ir-lncRNAs using univariate, multivariate, and LASSO Cox regression analyses, 9 PTX-resistant immune-related lncRNAs (DEir-lncRNAs) acted as biomarkers were discovered as potential biomarkers in the prediction model. Single-cell RNA sequencing (scRNA-seq) data of OC confirmed the relevance of DEir-lncRNAs in immune responsiveness. Patients with a low prediction score had a promising prognosis, whereas patients with a high prediction score were more prone to evade immunotherapy and chemotherapy and had poor prognosis. CONCLUSION The novel prediction model with 9 DEir-lncRNAs is a valuable tool for predicting immunotherapeutic and chemotherapeutic responses and prognosis of patients with OC.
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Affiliation(s)
- Xin Li
- Research Center for Clinical Medicine, Jinshan Hospital of Fudan University, Shanghai, 201508, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, 200032, China
| | - Huiqiang Liu
- Research Center for Clinical Medicine, Jinshan Hospital of Fudan University, Shanghai, 201508, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, 200032, China
| | - Fanchen Wang
- Research Center for Clinical Medicine, Jinshan Hospital of Fudan University, Shanghai, 201508, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, 200032, China
| | - Jia Yuan
- Research Center for Clinical Medicine, Jinshan Hospital of Fudan University, Shanghai, 201508, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, 200032, China
| | - Wencai Guan
- Research Center for Clinical Medicine, Jinshan Hospital of Fudan University, Shanghai, 201508, China
| | - Guoxiong Xu
- Research Center for Clinical Medicine, Jinshan Hospital of Fudan University, Shanghai, 201508, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, 200032, China
- Center for Tumor Diagnosis and Therapy, Jinshan Hospital, Fudan University, Shanghai, 201508, China
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Applications of Exosomes in Diagnosing Muscle Invasive Bladder Cancer. Pharmaceutics 2022; 14:pharmaceutics14102027. [PMID: 36297462 PMCID: PMC9607910 DOI: 10.3390/pharmaceutics14102027] [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: 08/22/2022] [Revised: 09/17/2022] [Accepted: 09/20/2022] [Indexed: 11/30/2022] Open
Abstract
Muscle Invasive Bladder Cancer (MIBC) is a subset of bladder cancer with a significant risk for metastases and death. It accounts for nearly 25% of bladder cancer diagnoses. A diagnostic work-up for MIBC is inclusive of urologic evaluation, radiographic imaging with a CT scan, urinalysis, and cystoscopy. These evaluations, especially cystoscopy, are invasive and carry the risk of secondary health concerns. Non-invasive diagnostics such as urine cytology are an attractive alternative currently being investigated to mitigate the requirement for cystoscopy. A pitfall in urine cytology is the lack of available options with high reliability, specificity, and sensitivity to malignant bladder cells. Exosomes are a novel biomarker source which could resolve some of the concerns with urine cytology, due to the high specificity as the surrogates of tumor cells. This review serves to define muscle invasive bladder cancer, current urine cytology methods, the role of exosomes in MIBC, and exosomes application as a diagnostic tool in MIBC. Urinary exosomes as the specific populations of extracellular vesicles could provide additional biomarkers with specificity and sensitivity to bladder malignancies, which are a consistent source of cellular information to direct clinicians for developing treatment strategies. Given its strong presence and differentiation ability between normal and cancerous cells, exosome-based urine cytology is highly promising in providing a perspective of a patient’s bladder cancer.
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McAlarnen LA, Gupta P, Singh R, Pradeep S, Chaluvally-Raghavan P. Extracellular vesicle contents as non-invasive biomarkers in ovarian malignancies. Mol Ther Oncolytics 2022; 26:347-359. [PMID: 36090475 PMCID: PMC9420349 DOI: 10.1016/j.omto.2022.08.005] [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] [Indexed: 11/25/2022] Open
Abstract
Ovarian cancer most commonly presents at an advanced stage where survival is approximately 30% compared with >80% if diagnosed and treated before disease spreads. Diagnostic capabilities have progressed from surgical staging via laparotomy to image-guided biopsies and immunohistochemistry staining, along with advances in technology and medicine. Despite improvements in diagnostic capabilities, population-level screening for ovarian cancer is not recommended. Extracellular vesicles (EVs) are 40–150 nm structures formed when the cellular lipid bilayer invaginates. These structures function in cell signaling, immune responses, cancer progression, and establishing the tumor microenvironment. EVs are found in nearly every bodily fluid, including serum, plasma, ascites, urine, and effusion fluid, and contain molecular cargo from their cell of origin. This cargo can be analyzed to yield information about a possible malignancy. In this review we describe how the cargo of EVs has been studied as biomarkers in ovarian cancer. We bring together studies analyzing evidence for various cargos as ovarian cancer biomarkers. Then, we describe the role of EVs in modulation of the tumor microenvironment. This review also summarizes the therapeutic and translational potential of EVs for their optimal utilization as non-invasive biomarkers for novel treatments against cancer.
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An electrochemical biosensor for exosome detection based on covalent organic frameworks conjugated with DNA and horseradish peroxidase. J Electroanal Chem (Lausanne) 2022. [DOI: 10.1016/j.jelechem.2022.116576] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Li X, Gao X, Yuan J, Wang F, Xu X, Wang C, Liu H, Guan W, Zhang J, Xu G. The miR-33a-5p/CROT axis mediates ovarian cancer cell behaviors and chemoresistance via the regulation of the TGF-β signal pathway. Front Endocrinol (Lausanne) 2022; 13:950345. [PMID: 36120434 PMCID: PMC9478117 DOI: 10.3389/fendo.2022.950345] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/22/2022] [Accepted: 08/15/2022] [Indexed: 11/25/2022] Open
Abstract
Due to the lack of symptoms and detection biomarkers at the early stage, most patients with ovarian cancer (OC) are diagnosed at an advanced stage and often face chemoresistance and relapse. Hence, defining detection biomarkers and mechanisms of chemoresistance is imperative. A previous report of a cDNA microarray analysis shows a potential association of carnitine O-octanoyltransferase (CROT) with taxane resistance but the biological function of CROT in OC remains unknown. The current study explored the function and regulatory mechanism of CROT on cellular behavior and paclitaxel (PTX)-resistance in OC. We found that CROT was downregulated in OC tissues and PTX-resistant cells. Furthermore, CROT expression was negatively correlated with the prognosis of OC patients. Overexpression of CROT inhibited the OC cell proliferation, migration, invasion, and colony formation, arrested the cell cycle at the G2/M phase, and promoted cell apoptosis. In addition, miR-33a-5p bound directly to the 3'UTR of CROT to negatively regulate the expression of CROT and promoted OC cell growth. Finally, overexpression of CROT decreased the phosphorylation of Smad2, whereas knockdown of CROT increased the nuclear translocation of Smad2 and Smad4, two transducer proteins of TGF-β signaling, indicating that CROT is a tumor suppressor which mediates OC cell behaviors through the TGF-β signaling pathway. Thus, targeting the miR-33a-5p/CROT axis may have clinical potential for the treatment of patients with OC.
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Affiliation(s)
- Xin Li
- Research Center for Clinical Medicine, Jinshan Hospital, Fudan University, Shanghai, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Xuzhu Gao
- Research Center for Clinical Medicine, Jinshan Hospital, Fudan University, Shanghai, China
| | - Jia Yuan
- Research Center for Clinical Medicine, Jinshan Hospital, Fudan University, Shanghai, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Fancheng Wang
- Research Center for Clinical Medicine, Jinshan Hospital, Fudan University, Shanghai, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Xiaolin Xu
- Research Center for Clinical Medicine, Jinshan Hospital, Fudan University, Shanghai, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Chenglong Wang
- Research Center for Clinical Medicine, Jinshan Hospital, Fudan University, Shanghai, China
| | - Huiqiang Liu
- Research Center for Clinical Medicine, Jinshan Hospital, Fudan University, Shanghai, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Wencai Guan
- Research Center for Clinical Medicine, Jinshan Hospital, Fudan University, Shanghai, China
| | - Jihong Zhang
- Research Center for Clinical Medicine, Jinshan Hospital, Fudan University, Shanghai, China
| | - Guoxiong Xu
- Research Center for Clinical Medicine, Jinshan Hospital, Fudan University, Shanghai, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
- *Correspondence: Guoxiong Xu,
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Kim H, Jang H, Cho H, Choi J, Hwang KY, Choi Y, Kim SH, Yang Y. Recent Advances in Exosome-Based Drug Delivery for Cancer Therapy. Cancers (Basel) 2021; 13:cancers13174435. [PMID: 34503245 PMCID: PMC8430743 DOI: 10.3390/cancers13174435] [Citation(s) in RCA: 48] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2021] [Revised: 08/25/2021] [Accepted: 08/30/2021] [Indexed: 12/12/2022] Open
Abstract
Simple Summary Exosomes derived from various sources can deliver therapeutic agents such as small molecule drugs, nucleic acids, and proteins to cancer cells by passive or active targeting. These exosomes can encapsulate drugs inside the exosomes, extending drug half-life and increasing drug release stability. In addition, exosomes are highly biocompatible due to their endogenous origin and can be used as nanocarriers for tissue-specific targeted delivery. This review discusses recent advances in exosome-based drug delivery for cancer therapy. Abstract Exosomes are a class of extracellular vesicles, with a size of about 100 nm, secreted by most cells and carrying various bioactive molecules such as nucleic acids, proteins, and lipids, and reflect the biological status of parent cells. Exosomes have natural advantages such as high biocompatibility and low immunogenicity for efficient delivery of therapeutic agents such as chemotherapeutic drugs, nucleic acids, and proteins. In this review, we introduce the latest explorations of exosome-based drug delivery systems for cancer therapy, with particular focus on the targeted delivery of various types of cargoes.
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Affiliation(s)
- Hyosuk Kim
- Center for Theragnosis, Biomedical Research Division, Korea Institute of Science and Technology (KIST), Seoul 02792, Korea; (H.K.); (H.J.); (H.C.); (J.C.)
| | - Hochung Jang
- Center for Theragnosis, Biomedical Research Division, Korea Institute of Science and Technology (KIST), Seoul 02792, Korea; (H.K.); (H.J.); (H.C.); (J.C.)
- Division of Bio-Medical Science and Technology, KIST School, Korea University of Science and Technology, Seoul 02792, Korea
| | - Haeun Cho
- Center for Theragnosis, Biomedical Research Division, Korea Institute of Science and Technology (KIST), Seoul 02792, Korea; (H.K.); (H.J.); (H.C.); (J.C.)
- Department of Biotechnology, College of Life Sciences & Biotechnology, Korea University, Seoul 02841, Korea;
| | - Jiwon Choi
- Center for Theragnosis, Biomedical Research Division, Korea Institute of Science and Technology (KIST), Seoul 02792, Korea; (H.K.); (H.J.); (H.C.); (J.C.)
- Department of Bioengineering, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 02841, Korea;
| | - Kwang Yeon Hwang
- Department of Biotechnology, College of Life Sciences & Biotechnology, Korea University, Seoul 02841, Korea;
| | - Yeonho Choi
- Department of Bioengineering, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 02841, Korea;
| | - Sun Hwa Kim
- Center for Theragnosis, Biomedical Research Division, Korea Institute of Science and Technology (KIST), Seoul 02792, Korea; (H.K.); (H.J.); (H.C.); (J.C.)
- Correspondence: (S.H.K.); (Y.Y.); Tel.: +82-02-958-6639 (S.H.K.); +82-02-958-6655 (Y.Y.)
| | - Yoosoo Yang
- Center for Theragnosis, Biomedical Research Division, Korea Institute of Science and Technology (KIST), Seoul 02792, Korea; (H.K.); (H.J.); (H.C.); (J.C.)
- Division of Bio-Medical Science and Technology, KIST School, Korea University of Science and Technology, Seoul 02792, Korea
- Correspondence: (S.H.K.); (Y.Y.); Tel.: +82-02-958-6639 (S.H.K.); +82-02-958-6655 (Y.Y.)
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Croft PKD, Sharma S, Godbole N, Rice GE, Salomon C. Ovarian-Cancer-Associated Extracellular Vesicles: Microenvironmental Regulation and Potential Clinical Applications. Cells 2021; 10:cells10092272. [PMID: 34571921 PMCID: PMC8471580 DOI: 10.3390/cells10092272] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Revised: 08/08/2021] [Accepted: 08/25/2021] [Indexed: 12/12/2022] Open
Abstract
Ovarian cancer (OC) is one of the most diagnosed gynecological cancers in women. Due to the lack of effective early stage screening, women are more often diagnosed at an advanced stage; therefore, it is associated with poor patient outcomes. There are a lack of tools to identify patients at the highest risk of developing this cancer. Moreover, early detection strategies, therapeutic approaches, and real-time monitoring of responses to treatment to improve survival and quality of life are also inadequate. Tumor development and progression are dependent upon cell-to-cell communication, allowing cancer cells to re-program cells not only within the surrounding tumor microenvironment, but also at distant sites. Recent studies established that extracellular vesicles (EVs) mediate bi-directional communication between normal and cancerous cells. EVs are highly stable membrane vesicles that are released from a wide range of cells, including healthy and cancer cells. They contain tissue-specific signaling molecules (e.g., proteins and miRNA) and, once released, regulate target cell phenotypes, inducing a pro-tumorigenic and immunosuppressive phenotype to contribute to tumor growth and metastasis as well as proximal and distal cell function. Thus, EVs are a “fingerprint” of their cell of origin and reflect the metabolic status. Additionally, via the capacity to evade the immune system and remain stable over long periods in circulation, EVs can be potent therapeutic agents. This review examines the potential role of EVs in the different aspects of the tumor microenvironment in OC, as well as their application in diagnosis, delivery of therapeutic agents, and disease monitoring.
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Affiliation(s)
- Priyakshi Kalita-de Croft
- Exosome Biology Laboratory, Centre for Clinical Diagnostics, University of Queensland Centre for Clinical Research, Royal Brisbane and Women’s Hospital, The University of Queensland, Herston, QLD 4029, Australia; (P.K.-d.C); (S.S); (N.G); (G.E.R)
- Faculty of Medicine, University of Queensland Centre for Clinical Research, Royal Brisbane and Women’s Hospital, The University of Queensland, Herston, QLD 4029, Australia
| | - Shayna Sharma
- Exosome Biology Laboratory, Centre for Clinical Diagnostics, University of Queensland Centre for Clinical Research, Royal Brisbane and Women’s Hospital, The University of Queensland, Herston, QLD 4029, Australia; (P.K.-d.C); (S.S); (N.G); (G.E.R)
| | - Nihar Godbole
- Exosome Biology Laboratory, Centre for Clinical Diagnostics, University of Queensland Centre for Clinical Research, Royal Brisbane and Women’s Hospital, The University of Queensland, Herston, QLD 4029, Australia; (P.K.-d.C); (S.S); (N.G); (G.E.R)
| | - Gregory E. Rice
- Exosome Biology Laboratory, Centre for Clinical Diagnostics, University of Queensland Centre for Clinical Research, Royal Brisbane and Women’s Hospital, The University of Queensland, Herston, QLD 4029, Australia; (P.K.-d.C); (S.S); (N.G); (G.E.R)
| | - Carlos Salomon
- Exosome Biology Laboratory, Centre for Clinical Diagnostics, University of Queensland Centre for Clinical Research, Royal Brisbane and Women’s Hospital, The University of Queensland, Herston, QLD 4029, Australia; (P.K.-d.C); (S.S); (N.G); (G.E.R)
- Correspondence: ; Tel.: +61-7-3346-5500; Fax: +61-7-3346-5509
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Shan Z, Wang H, Zhang Y, Min W. The Role of Tumor-Derived Exosomes in the Abscopal Effect and Immunotherapy. Life (Basel) 2021; 11:life11050381. [PMID: 33922480 PMCID: PMC8145657 DOI: 10.3390/life11050381] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Revised: 04/17/2021] [Accepted: 04/19/2021] [Indexed: 01/08/2023] Open
Abstract
Exosomes are microvesicles that can be secreted by various cells and carry a variety of contents; thus, they play multiple biological functions. For instance, the tumor-derived exosomes (TEXs) have been proven to have the effect of immunostimulatory in addition to immunosuppression, making TEXs attractive in clinical immunotherapy and targeted therapy for cancer patients. In addition, TEXs as biomarkers have important clinical diagnostic and prognostic value. Recently, TEXs have been recognized to play important roles in the abscopal effect (AbE), a newly discovered mechanism by which the distant tumors are effectively targeted and repressed during immunotherapy and radiotherapy. Therefore, TEXs has demonstrated great clinical potential in the diagnosis, prognosis and treatment of cancer patients in the future. This review summarizes and discusses the role of TEXs in clinical therapy and their role in AbE in recent studies.
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Affiliation(s)
- Zechen Shan
- Academy of Queen Mary, Nanchang University, Nanchang 330000, China; (Z.S.); (Y.Z.)
| | - Hongmei Wang
- School of Basic Medical Sciences, Nanchang University, Nanchang 330000, China
- Correspondence: (H.W.); (W.M.)
| | - Yujuan Zhang
- Academy of Queen Mary, Nanchang University, Nanchang 330000, China; (Z.S.); (Y.Z.)
- School of Basic Medical Sciences, Nanchang University, Nanchang 330000, China
| | - Weiping Min
- Academy of Queen Mary, Nanchang University, Nanchang 330000, China; (Z.S.); (Y.Z.)
- School of Basic Medical Sciences, Nanchang University, Nanchang 330000, China
- Department of Surgery, Pathology and Oncology, University of Western Ontario, London, ON N6A 5A5, Canada
- Correspondence: (H.W.); (W.M.)
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Small Extracellular Vesicles Released from Ovarian Cancer Spheroids in Response to Cisplatin Promote the Pro-Tumorigenic Activity of Mesenchymal Stem Cells. Int J Mol Sci 2019; 20:ijms20204972. [PMID: 31600881 PMCID: PMC6834150 DOI: 10.3390/ijms20204972] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2019] [Revised: 10/03/2019] [Accepted: 10/07/2019] [Indexed: 12/12/2022] Open
Abstract
Despite the different strategies used to treat ovarian cancer, around 70% of women/patients eventually fail to respond to the therapy. Cancer stem cells (CSCs) play a role in the treatment failure due to their chemoresistant properties. This capacity to resist chemotherapy allows CSCs to interact with different components of the tumor microenvironment, such as mesenchymal stem cells (MSCs), and thus contribute to tumorigenic processes. Although the participation of MSCs in tumor progression is well understood, it remains unclear how CSCs induce the pro-tumorigenic activity of MSCs in response to chemotherapy. Small extracellular vesicles, including exosomes, represent one possible way to modulate any type of cell. Therefore, in this study, we evaluate if small extracellular vesicle (sEV) derived from ovarian cancer spheroids (OCS), which are enriched in CSCs, can modify the activity of MSCs to a pro-tumorigenic phenotype. We show that sEV released by OCS in response to cisplatin induce an increase in the migration pattern of bone marrow MSCs (BM-MSCs) and the secretion interleukin-6 (IL-6), interleukin-8 (IL-8), and vascular endothelial growth factor A (VEGFA). Moreover, the factors secreted by BM-MSCs induce angiogenesis in endothelial cells and the migration of low-invasive ovarian cancer cells. These findings suggest that cisplatin could modulate the cargo of sEV released by CSCs, and these exosomes can further induce the pro-tumorigenic activity of MSCs.
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