151
|
Wang Z, Zhao K, Hackert T, Zöller M. CD44/CD44v6 a Reliable Companion in Cancer-Initiating Cell Maintenance and Tumor Progression. Front Cell Dev Biol 2018; 6:97. [PMID: 30211160 PMCID: PMC6122270 DOI: 10.3389/fcell.2018.00097] [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: 05/14/2018] [Accepted: 08/08/2018] [Indexed: 12/19/2022] Open
Abstract
Metastasis is the leading cause of cancer death, tumor progression proceeding through emigration from the primary tumor, gaining access to the circulation, leaving the circulation, settling in distant organs and growing in the foreign environment. The capacity of a tumor to metastasize relies on a small subpopulation of cells in the primary tumor, so called cancer-initiating cells (CIC). CIC are characterized by sets of markers, mostly membrane anchored adhesion molecules, CD44v6 being the most frequently recovered marker. Knockdown and knockout models accompanied by loss of tumor progression despite unaltered primary tumor growth unraveled that these markers are indispensable for CIC. The unexpected contribution of marker molecules to CIC-related activities prompted research on underlying molecular mechanisms. This review outlines the contribution of CD44, particularly CD44v6 to CIC activities. A first focus is given to the impact of CD44/CD44v6 to inherent CIC features, including the crosstalk with the niche, apoptosis-resistance, and epithelial mesenchymal transition. Following the steps of the metastatic cascade, we report on supporting activities of CD44/CD44v6 in migration and invasion. These CD44/CD44v6 activities rely on the association with membrane-integrated and cytosolic signaling molecules and proteases and transcriptional regulation. They are not restricted to, but most pronounced in CIC and are tightly regulated by feedback loops. Finally, we discuss on the engagement of CD44/CD44v6 in exosome biogenesis, loading and delivery. exosomes being the main acteurs in the long-distance crosstalk of CIC with the host. In brief, by supporting the communication with the niche and promoting apoptosis resistance CD44/CD44v6 plays an important role in CIC maintenance. The multifaceted interplay between CD44/CD44v6, signal transducing molecules and proteases facilitates the metastasizing tumor cell journey through the body. By its engagement in exosome biogenesis CD44/CD44v6 contributes to disseminated tumor cell settlement and growth in distant organs. Thus, CD44/CD44v6 likely is the most central CIC biomarker.
Collapse
Affiliation(s)
- Zhe Wang
- Department of Oncology, First Affiliated Hospital of Guangdong Pharmaceutical University, Guangdong, China
| | - Kun Zhao
- Pancreas Section, University Hospital of Surgery, Heidelberg, Germany
| | - Thilo Hackert
- Pancreas Section, University Hospital of Surgery, Heidelberg, Germany
| | - Margot Zöller
- Pancreas Section, University Hospital of Surgery, Heidelberg, Germany
- *Correspondence: Margot Zöller
| |
Collapse
|
152
|
Prostate-specific PTen deletion in mice activates inflammatory microRNA expression pathways in the epithelium early in hyperplasia development. Oncogenesis 2017; 6:400. [PMID: 29284790 PMCID: PMC5865543 DOI: 10.1038/s41389-017-0007-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2017] [Revised: 09/07/2017] [Accepted: 10/04/2017] [Indexed: 02/06/2023] Open
Abstract
PTen loss is one of the most frequent events in prostate cancer both at the initiation stage and during late stage metastatic development. The mouse model of prostate-specific probasin-mediated Pten deletion leads to prostate intraepithelial neoplasia (PIN) leading to adenocarcinoma. Using this model, we analysed the miR and mRNA transcriptome profile of Pten−/− PIN versus wild type age-matched prostate tissues and analysed the effects of Pten loss on miR expression in the early neoplastic process. At the PIN stage, Pten loss significantly changed the expression of over 20 miRNAs and over 4000 genes. The observed miR expression indicated a strong immunological cohort, which is seen in many human and mouse cancers and is thought to derive from infiltrating B and T immune cells. However, upon in situ hybridisation, these immunologically related miRs did not correlate with immune cell location, and emanated from the prostate epithelium itself and not from the associated immune cells present. Growing Pten−/− prostate cells in culture showed that the overexpressed miRNAs seen in Pten−/− were directly in response to the overactive PI3 kinase pathway and were in part responsible in reducing target gene expression levels. Inhibition of PI3 kinase downstream regulators, or re-introducing wild type PtencDNA reduced miR overexpression resulting in increased miR target gene expression. MiR inhibitors also showed this pattern, and synergised with an mTORC1 inhibitor. Overall, Pten deletion in the prostate epithelium activated a cohort of inflammation-related miRs usually associated with immune responses from B and T cells. These oncomiRs may then accelerate carcinogenesis.
Collapse
|
153
|
Zhao H, Achreja A, Iessi E, Logozzi M, Mizzoni D, Di Raimo R, Nagrath D, Fais S. The key role of extracellular vesicles in the metastatic process. Biochim Biophys Acta Rev Cancer 2017; 1869:64-77. [PMID: 29175553 DOI: 10.1016/j.bbcan.2017.11.005] [Citation(s) in RCA: 102] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2017] [Revised: 11/16/2017] [Accepted: 11/22/2017] [Indexed: 12/13/2022]
Abstract
Extracellular vesicles (EVs), including exosomes, have a key role in the paracrine communication between organs and compartments. EVs shuttle virtually all types of biomolecules such as proteins, lipids, nucleic acids, metabolites and even pharmacological compounds. Their ability to transfer their biomolecular cargo into target cells enables EVs to play a key role in intercellular communication that can regulate cellular functions such as proliferation, apoptosis and migration. This has led to the emergence of EVs as a key player in tumor growth and metastasis through the formation of "tumor niches" in target organs. Recent data have also been shown that EVs may transform the microenvironment of primary tumors thus favoring the selection of cancer cells with a metastatic behavior. The release of EVs from resident non-malignant cells may contribute to the metastatic processes as well. However, cancer EVs may induce malignant transformation in resident mesenchymal stem cells, suggesting that the metastatic process is not exclusively due to circulating tumor cells. In this review, we outline and discuss evidence-based roles of EVs in actively regulating multiple steps of the metastatic process and how we can leverage EVs to impair metastasis.
Collapse
Affiliation(s)
- Hongyun Zhao
- Biomedical Engineering, University of Michigan, Ann Arbor, MI, USA; Biointerfaces Institute, University of Michigan, Ann Arbor, MI, USA.
| | - Abhinav Achreja
- Biomedical Engineering, University of Michigan, Ann Arbor, MI, USA; Biointerfaces Institute, University of Michigan, Ann Arbor, MI, USA.
| | - Elisabetta Iessi
- Department of Oncology and Molecular Medicine, National Institute of Health, viale Regina Elena 299, 00161, Rome, Italy.
| | - Mariantonia Logozzi
- Department of Oncology and Molecular Medicine, National Institute of Health, viale Regina Elena 299, 00161, Rome, Italy.
| | - Davide Mizzoni
- Department of Oncology and Molecular Medicine, National Institute of Health, viale Regina Elena 299, 00161, Rome, Italy.
| | - Rossella Di Raimo
- Department of Oncology and Molecular Medicine, National Institute of Health, viale Regina Elena 299, 00161, Rome, Italy
| | - Deepak Nagrath
- Biomedical Engineering, University of Michigan, Ann Arbor, MI, USA; Biointerfaces Institute, University of Michigan, Ann Arbor, MI, USA.
| | - Stefano Fais
- Department of Oncology and Molecular Medicine, National Institute of Health, viale Regina Elena 299, 00161, Rome, Italy.
| |
Collapse
|
154
|
Dioufa N, Clark AM, Ma B, Beckwitt CH, Wells A. Bi-directional exosome-driven intercommunication between the hepatic niche and cancer cells. Mol Cancer 2017; 16:172. [PMID: 29137633 PMCID: PMC5686836 DOI: 10.1186/s12943-017-0740-6] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2017] [Accepted: 11/06/2017] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND Our understanding of the multiple roles exosomes play during tumor progression is still very poor and the contribution of the normal tissue derived exosomes in distant seeding and tumor outgrowth has also not been widely appreciated. METHODS Using our all-human liver microphysiological system (MPS) platform as a model to closely recapitulate the early metastatic events, we isolated exosomes from both tumor cells and liver microenvironment. RESULTS We observed that while priming of the hepatic niche (HepN) with MDA-231 breast cancer derived exosomes facilitated seeding of the cancer cells in the liver, subsequent tumor outgrowth was diminished; this was consistent with increased entry into dormancy. We found that hepatic niche (HepN) derived exosomes contribute significantly to the exosome pool and are distinguished from cancer derived exosomes based on their size, protein and miRNA content. By Ingenuity Pathway Analysis (IPA) of the miRNA content of the HepN, MDA-231/HepN and MDA-231 cells we showed that the HepN derived exosomes affect the breast cancer cells by suppressing pathways involved in cancer cell proliferation and invasion. More importantly exposure of MDA-231 and MDA-468 cells to purified normal HepN derived exosomes, induced changes in the cells consistent with a Mesenchymal to Epithelial reverting Transition (MErT). miRNA arrays performed on MDA-231 treated with Hum Hep/NPC derived exosomes showed significant changes in the levels of a select number of miRNAs involved in epithelial cell differentiation and miRNAs, such as miR186, miR23a and miR205, from our top and bottom bins have previously been reported to regulate E-cadherin transcription and MErT induction in various cancer types. Consistently HepN derived exosome treatment of breast and prostate cancer lines lead to a transient induction of E-cadherin and ZO-1 at the protein level and a more epithelial-like morphology of the cells. CONCLUSIONS Collectively our data revealed a novel mechanism of regulation of the metastatic cascade, showing a well-orchestrated, timely controlled crosstalk between the cancer cells and the HepN and implicating for the first time the normal tissue/HepN derived exosomes in enabling seeding and entry into dormancy of the cancer cells at the metastatic site.
Collapse
Affiliation(s)
- Nikolina Dioufa
- Department of Pathology, University of Pittsburgh, Pittsburgh, PA, USA
| | - Amanda M Clark
- Department of Pathology, University of Pittsburgh, Pittsburgh, PA, USA
| | - Bo Ma
- Department of Pathology, University of Pittsburgh, Pittsburgh, PA, USA
| | - Colin H Beckwitt
- Department of Pathology, University of Pittsburgh, Pittsburgh, PA, USA
| | - Alan Wells
- Department of Pathology, University of Pittsburgh, Pittsburgh, PA, USA. .,McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA, USA. .,University of Pittsburgh Cancer Institute, Pittsburgh, PA, USA. .,Pittsburgh VA Medical Center, VA Pittsburgh Healthcare System, S713 Scaife Hall, 3550 Terrace St, Pittsburgh, PA, 15261, USA.
| |
Collapse
|
155
|
Wang X, Liu F, Qin X, Huang T, Huang B, Zhang Y, Jiang B. Expression of Rab1A is upregulated in human lung cancer and associated with tumor size and T stage. Aging (Albany NY) 2017; 8:2790-2798. [PMID: 27902464 PMCID: PMC5191870 DOI: 10.18632/aging.101087] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2016] [Accepted: 11/09/2016] [Indexed: 12/27/2022]
Abstract
Rab1A expression is associated with malignant phenotypes in several human tumors; however, the role of Rab1A in lung cancer is still unclear. In this study, we attempted to establish the role of Rab1A in major human lung cancer subtypes. Rab1A expression in different histological types of human lung cancer was analyzed in lung cancer tissues with paired adjacent noncancerous tissues and a large panel of lung cancer cell lines. The effect of Rab1A expression on multiple cancer-associated signaling pathways was also examined. The results demonstrated that Rab1A was significantly overexpressed in the different histological types of lung cancer as compared to non-cancerous tissues, and Rab1A expression was correlated with tumor volume and stage. In a large panel of lung cancer cell lines, high Rab1A expression was observed as compared to a normal lung/bronchus epithelial cell line. However, Rab1A protein levels were not correlated with mTORC1 (P-S6K1), mTORC2 (P-AKT), MEK (P-ERK), JNK (P-c-Jun) or p38MAPK (P-MK2) signaling. Rab1A knockdown had no effect on mTOR signaling or cell growth. These data suggested that Rab1A may be involved in the pathogenesis of human lung cancer in an mTOR- and MAPK-independent manner.
Collapse
Affiliation(s)
- Xinxin Wang
- Oncology Department, Shanghai Ninth People's Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 201999, China
| | - Feng Liu
- Oncology Department, Shanghai Ninth People's Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 201999, China
| | - Xiaoyu Qin
- Oncology Department, Shanghai Ninth People's Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 201999, China
| | - Tinglei Huang
- Oncology Department, Shanghai Ninth People's Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 201999, China
| | - Bo Huang
- Oncology Department, Shanghai Ninth People's Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 201999, China
| | - Yanjie Zhang
- Oncology Department, Shanghai Ninth People's Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 201999, China
| | - Bin Jiang
- Oncology Department, Shanghai Ninth People's Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 201999, China
| |
Collapse
|
156
|
Wu K, Xing F, Wu SY, Watabe K. Extracellular vesicles as emerging targets in cancer: Recent development from bench to bedside. Biochim Biophys Acta Rev Cancer 2017; 1868:538-563. [PMID: 29054476 DOI: 10.1016/j.bbcan.2017.10.001] [Citation(s) in RCA: 103] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2017] [Revised: 10/13/2017] [Accepted: 10/13/2017] [Indexed: 12/16/2022]
Abstract
Extracellular vesicles (EVs) have emerged as important players of cancer initiation and progression through cell-cell communication. They have been recognized as critical mediators of extracellular communications, which promote transformation, growth invasion, and drug-resistance of cancer cells. Interestingly, the secretion and uptake of EVs are regulated in a more controlled manner than previously anticipated. EVs are classified into three groups, (i) exosomes, (ii) microvesicles (MVs), and (iii) apoptotic bodies (ABs), based on their sizes and origins, and novel technologies to isolate and distinguish these EVs are evolving. The biologically functional molecules harbored in these EVs, including nucleic acids, lipids, and proteins, have been shown to induce key signaling pathways in both tumor and tumor microenvironment (TME) cells for exacerbating tumor development. While tumor cell-derived EVs are capable of reprogramming stromal cells to generate a proper tumor cell niche, stromal-derived EVs profoundly affect the growth, resistance, and stem cell properties of tumor cells. This review summarizes and discusses these reciprocal communications through EVs in different types of cancers. Further understanding of the pathophysiological roles of different EVs in tumor progression is expected to lead to the discovery of novel biomarkers in liquid biopsy and development of tumor specific therapeutics. This review will also discuss the translational aspects of EVs and therapeutic opportunities of utilizing EVs in different cancer types.
Collapse
Affiliation(s)
- Kerui Wu
- Departments of Cancer Biology, Wake Forest University School of Medicine, Winston Salem, NC, USA
| | - Fei Xing
- Departments of Cancer Biology, Wake Forest University School of Medicine, Winston Salem, NC, USA
| | - Shih-Ying Wu
- Departments of Cancer Biology, Wake Forest University School of Medicine, Winston Salem, NC, USA
| | - Kounosuke Watabe
- Departments of Cancer Biology, Wake Forest University School of Medicine, Winston Salem, NC, USA.
| |
Collapse
|
157
|
Crow J, Atay S, Banskota S, Artale B, Schmitt S, Godwin AK. Exosomes as mediators of platinum resistance in ovarian cancer. Oncotarget 2017; 8:11917-11936. [PMID: 28060758 PMCID: PMC5355315 DOI: 10.18632/oncotarget.14440] [Citation(s) in RCA: 80] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2016] [Accepted: 12/16/2016] [Indexed: 12/21/2022] Open
Abstract
Exosomes have been implicated in the cell-cell transfer of oncogenic proteins and genetic material. We speculated this may be one mechanism by which an intrinsically platinum-resistant population of epithelial ovarian cancer (EOC) cells imparts its influence on surrounding tumor cells. To explore this possibility we utilized a platinum-sensitive cell line, A2780 and exosomes derived from its resistant subclones, and an unselected, platinum-resistant EOC line, OVCAR10. A2780 cells demonstrate a ~2-fold increase in viability upon treatment with carboplatin when pre-exposed to exosomes from platinum-resistant cells as compared to controls. This coincided with increased epithelial to mesenchymal transition (EMT). DNA sequencing of EOC cell lines revealed previously unreported somatic mutations in the Mothers Against Decapentaplegic Homolog 4 (SMAD4) within platinum-resistant cells. A2780 cells engineered to exogenously express these SMAD4 mutations demonstrate up-regulation of EMT markers following carboplatin treatment, are more resistant to carboplatin, and release exosomes which impart a ~1.7-fold increase in resistance in naive A2780 recipient cells as compared to controls. These studies provide the first evidence that acquired SMAD4 mutations enhance the chemo-resistance profile of EOC and present a novel mechanism in which exchange of tumor-derived exosomes perpetuates an EMT phenotype, leading to the development of subpopulations of platinum-refractory cells.
Collapse
Affiliation(s)
- Jennifer Crow
- Department of Pathology and Laboratory Medicine, University of Kansas Medical Center, Kansas City, KS, USA
| | - Safinur Atay
- Department of Pathology and Laboratory Medicine, University of Kansas Medical Center, Kansas City, KS, USA
| | - Samagya Banskota
- Department of Pathology and Laboratory Medicine, University of Kansas Medical Center, Kansas City, KS, USA.,Department of Biomedical Engineering, Duke University, Durham, North Carolina, NC, USA
| | - Brittany Artale
- Bioengineering Graduate Program, University of Kansas, Lawrence, KS, USA
| | - Sarah Schmitt
- Department of Pathology and Laboratory Medicine, University of Kansas Medical Center, Kansas City, KS, USA
| | - Andrew K Godwin
- Department of Pathology and Laboratory Medicine, University of Kansas Medical Center, Kansas City, KS, USA.,University of Kansas Cancer Center, Kansas City, KS, USA
| |
Collapse
|
158
|
Drak Alsibai K, Meseure D. Tumor microenvironment and noncoding RNAs as co-drivers of epithelial-mesenchymal transition and cancer metastasis. Dev Dyn 2017; 247:405-431. [PMID: 28691356 DOI: 10.1002/dvdy.24548] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2017] [Revised: 05/31/2017] [Accepted: 06/29/2017] [Indexed: 12/13/2022] Open
Abstract
Reciprocal interactions between cancer cells and tumor microenvironment (TME) are crucial events in tumor progression and metastasis. Pervasive stromal reprogramming of TME modifies numerous cellular functions, including extracellular matrix (ECM) stiffness, inflammation, and immunity. These environmental factors allow selection of more aggressive cells that develop adaptive strategies associating plasticity and epithelial-mesenchymal transition (EMT), stem-like phenotype, invasion, immunosuppression, and resistance to therapies. EMT is a morphomolecular process that endows epithelial tumor cells with mesenchymal properties, including reduced adhesion and increased motility. Numerous studies have demonstrated involvement of noncoding RNAs (ncRNAs), such as miRNAs and lncRNAs, in tumor initiation, progression, and metastasis. NcRNAs regulate every hallmark of cancer and have now emerged as new players in induction and regulation of EMT. The reciprocal regulatory interactions between ncRNAs, TME components, and cancer cells increase the complexity of gene expression and protein translation in cancer. Thus, deeper understanding of molecular mechanisms controlling EMT will not only shed light on metastatic processes of cancer cells, but enhance development of new therapies targeting metastasis. In this review, we will provide recent findings on the role of known ncRNAs relevant to EMT and cancer metastasis and discuss the role of the interaction between ncRNAs and TME as co-drivers of EMT. Developmental Dynamics 247:405-431, 2018. © 2017 Wiley Periodicals, Inc.
Collapse
Affiliation(s)
| | - Didier Meseure
- Platform of Investigative Pathology, Curie Institute, Paris, France.,Department of Pathology, Curie Institute, Paris, France
| |
Collapse
|
159
|
Abdouh M, Hamam D, Gao ZH, Arena V, Arena M, Arena GO. Exosomes isolated from cancer patients' sera transfer malignant traits and confer the same phenotype of primary tumors to oncosuppressor-mutated cells. JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2017; 36:113. [PMID: 28854931 PMCID: PMC5577828 DOI: 10.1186/s13046-017-0587-0] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/13/2017] [Accepted: 08/24/2017] [Indexed: 12/14/2022]
Abstract
Background Horizontal transfer of malignant traits from the primary tumor to distant organs, through blood circulating factors, has recently become a thoroughly studied metastatic pathway to explain cancer dissemination. Recently, we reported that oncosuppressor gene-mutated human cells undergo malignant transformation when exposed to cancer patients’ sera. We also observed that oncosuppressor mutated cells would show an increased uptake of cancer-derived exosomes and we suggested that oncosuppressor genes might protect the integrity of the cell genome by blocking integration of cancer-derived exosomes. In the present study, we tested the hypothesis that cancer patients’ sera-derived exosomes might be responsible for the malignant transformation of target cells and that oncosuppressor mutation would promote their increased uptake. We also sought to unveil the mechanisms behind the hypothesized phenomena. Methods We used human BRCA1 knockout (BRCA1-KO) fibroblasts as target cells. Cells were treated in vitro with cancer patients’ sera or cancer patients’ sera-derived exosomes. Treated cells were injected into NOD-SCID mice. Immunohistochemical analyses were performed to determine the differentiation state of the xenotransplants. Mass spectrometry analyses of proteins from cancer exosomes and the BRCA1-KO fibroblasts’ membrane were performed to investigate possible de novo expression of molecules involved in vesicles uptake. Blocking of the identified molecules in vitro was performed and in vivo experiments were conducted to confirm the role of these molecules in the malignant transformation carried out by cancer-derived exosomes. Results Cells treated with exosomes isolated from cancer patients’ sera underwent malignant transformation and formed tumors when transplanted into immunodeficient mice. Histological analyses showed that the tumors were carcinomas that differentiated into the same lineage of the primary tumors of blood donors. Oncosuppressor mutation promoted the de novo expression, on the plasma membrane of target cells, of receptors, responsible for the increased uptake of cancer-derived exosomes. The selective blocking of these receptors inhibited the horizontal transfer of malignant traits. Conclusion These findings strengthen the hypothesis that oncogenic factors transferred via circulating cancer exosomes, induce malignant transformation of target cells even at distance. Oncosuppressor genes might protect the integrity of the cell genome by inhibiting the uptake of cancer-derived exosomes. Electronic supplementary material The online version of this article (10.1186/s13046-017-0587-0) contains supplementary material, which is available to authorized users.
Collapse
Affiliation(s)
- Mohamed Abdouh
- Cancer Research Program, McGill University Health Centre-Research Institute, 1001 Decarie Boulevard, Montreal, Quebec, H4A 3J1, Canada
| | - Dana Hamam
- Cancer Research Program, McGill University Health Centre-Research Institute, 1001 Decarie Boulevard, Montreal, Quebec, H4A 3J1, Canada.,Department of Experimental Surgery, Faculty of Medicine, McGill University, 845 Rue Sherbrooke O, Montreal, Quebec, H3A 0G4, Canada
| | - Zu-Hua Gao
- Department of Pathology, McGill University Health Centre-Research Institute, 1001 Decarie Boulevard, Montreal, Quebec, H4A 3J1, Canada
| | - Vincenzo Arena
- Department of Obstetrics and Gynecology, Santo Bambino Hospital, via Torre del Vescovo 4, Catania, Italy
| | - Manuel Arena
- Department of Surgical Sciences, Organ Transplantation and Advances Technologies, University of Catania, via Santa Sofia, 84, Catania, Italy
| | - Goffredo Orazio Arena
- Cancer Research Program, McGill University Health Centre-Research Institute, 1001 Decarie Boulevard, Montreal, Quebec, H4A 3J1, Canada. .,Department of Surgery, McGill University, St. Mary Hospital, 3830 Lacombe Avenue, Montreal, Quebec, H3T 1M5, Canada.
| |
Collapse
|
160
|
Datta A, Kim H, Lal M, McGee L, Johnson A, Moustafa AA, Jones JC, Mondal D, Ferrer M, Abdel-Mageed AB. Manumycin A suppresses exosome biogenesis and secretion via targeted inhibition of Ras/Raf/ERK1/2 signaling and hnRNP H1 in castration-resistant prostate cancer cells. Cancer Lett 2017; 408:73-81. [PMID: 28844715 DOI: 10.1016/j.canlet.2017.08.020] [Citation(s) in RCA: 150] [Impact Index Per Article: 21.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2017] [Revised: 08/12/2017] [Accepted: 08/16/2017] [Indexed: 01/30/2023]
Abstract
Emerging evidence links exosomes to cancer progression by the trafficking of oncogenic factors and neoplastic reprogramming of stem cells. This necessitates identification and integration of functionally validated exosome-targeting therapeutics into current cancer management regimens. We employed quantitative high throughput screen on two libraries to identify exosome-targeting drugs; a commercially available collection of 1280 pharmacologically active compounds and a collection of 3300 clinically approved compounds. Manumycin-A (MA), a natural microbial metabolite, was identified as an inhibitor of exosome biogenesis and secretion by castration-resistant prostate cancer (CRPC) C4-2B, but not the normal RWPE-1, cells. While no effect was observed on cell growth, MA attenuated ESCRT-0 proteins Hrs, ALIX and Rab27a and exosome biogenesis and secretion by CRPC cells. The MA inhibitory effect is primarily mediated via targeted inhibition of the Ras/Raf/ERK1/2 signaling. The Ras-dependent MA suppression of exosome biogenesis and secretion is partly mediated by ERK-dependent inhibition of the oncogenic splicing factor hnRNP H1. Our findings suggest that MA is a potential drug candidate to suppress exosome biogenesis and secretion by CRPC cells.
Collapse
Affiliation(s)
- Amrita Datta
- Department of Urology, Tulane University School of Medicine, New Orleans, LA 70112, United States
| | - Hogyoung Kim
- Department of Urology, Tulane University School of Medicine, New Orleans, LA 70112, United States
| | - Madhu Lal
- Division of Preclinical Innovation, National Center for Advancing Translational Sciences (NCATS), National Cancer Institute, National Institutes of Health, Bethesda, MD 20850, United States
| | - Lauren McGee
- Division of Preclinical Innovation, National Center for Advancing Translational Sciences (NCATS), National Cancer Institute, National Institutes of Health, Bethesda, MD 20850, United States
| | - Adedoyin Johnson
- Department of Urology, Tulane University School of Medicine, New Orleans, LA 70112, United States
| | - Ahmed A Moustafa
- Department of Urology, Tulane University School of Medicine, New Orleans, LA 70112, United States; Zoology and Entomology Department, Faculty of Science, Helwan University, Cairo 11790, Egypt
| | - Jennifer C Jones
- Molecular Immunogenetics and Vaccine Research Section, National Cancer Institute, National Institutes of Health, Bethesda, MD 20850, United States
| | - Debasis Mondal
- Department of Pharmacology, Tulane University School of Medicine, New Orleans, LA 70112, United States; Department of Tulane Cancer Center, Tulane University School of Medicine, New Orleans, LA 70112, United States
| | - Marc Ferrer
- Division of Preclinical Innovation, National Center for Advancing Translational Sciences (NCATS), National Cancer Institute, National Institutes of Health, Bethesda, MD 20850, United States
| | - Asim B Abdel-Mageed
- Department of Urology, Tulane University School of Medicine, New Orleans, LA 70112, United States; Department of Pharmacology, Tulane University School of Medicine, New Orleans, LA 70112, United States; Department of Tulane Cancer Center, Tulane University School of Medicine, New Orleans, LA 70112, United States.
| |
Collapse
|
161
|
Lázaro-Ibáñez E, Neuvonen M, Takatalo M, Thanigai Arasu U, Capasso C, Cerullo V, Rhim JS, Rilla K, Yliperttula M, Siljander PRM. Metastatic state of parent cells influences the uptake and functionality of prostate cancer cell-derived extracellular vesicles. J Extracell Vesicles 2017; 6:1354645. [PMID: 28819549 PMCID: PMC5556667 DOI: 10.1080/20013078.2017.1354645] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2017] [Accepted: 07/04/2017] [Indexed: 12/19/2022] Open
Abstract
Extracellular vesicles (EVs), including microvesicles and exosomes, mediate intercellular signalling which has a profound role in cancer progression and in the development of metastasis. Internalisation of EVs can prompt functional changes in the recipient cells, the nature of which depends on the molecular composition and the cargo of the EVs. We hypothesised that the metastatic stage of cancerous parent cells would determine the uptake efficacy and the subsequent functional effects of the respective cancer cell-derived EVs. To address this question, we compared the internalisation of EVs derived from two metastatic site-derived prostate cancer cell lines (PC-3 and LNCaP), human telomerase reverse transcriptase immortalised primary malignant prostate epithelial cells (RC92a/hTERT), and a benign epithelial prostate cell line (PNT2). EVs isolated from the metastatic site-derived PC-3 and LNCaP cells were more efficiently internalised by the PC-3 and PNT2 cells compared to the EVs from the primary malignant RC92a/hTERT cells or the benign PNT2 cells, as determined by high content microscopy, confocal microscopy, and flow cytometry. EV uptake was also influenced by the phase of the cell cycle, so that an increased EV-derived fluorescence signal was observed in the cells at the G2/M phase compared to the G0/G1 or S phases. Finally, differences were also observed in the functions of the recipient cells based on the EV source. Proliferation of PNT2 cells and to a lesser extent also PC-3 cells was enhanced particularly by the EVs from the metastatic-site-derived prostate cancer cells in comparison to the EVs from the benign cells or primary cancer cells, whereas migration of PC-3 cells was enhanced by all cancerous EVs. RESPONSIBLE EDITOR Takahiro Ochiya, National Cancer Center, Japan.
Collapse
Affiliation(s)
- Elisa Lázaro-Ibáñez
- Division of Pharmaceutical Biosciences, Centre for Drug Research, Faculty of Pharmacy, University of Helsinki, Helsinki, Finland
| | - Maarit Neuvonen
- Division of Pharmaceutical Biosciences, Centre for Drug Research, Faculty of Pharmacy, University of Helsinki, Helsinki, Finland.,Division of Biochemistry and Biotechnology, Department of Biosciences, University of Helsinki, Helsinki, Finland
| | - Maarit Takatalo
- Division of Pharmaceutical Biosciences, Centre for Drug Research, Faculty of Pharmacy, University of Helsinki, Helsinki, Finland.,Division of Biochemistry and Biotechnology, Department of Biosciences, University of Helsinki, Helsinki, Finland
| | - Uma Thanigai Arasu
- Faculty of Health Sciences, School of Medicine, Institute of Biomedicine, University of Eastern Finland, Kuopio, Finland
| | - Cristian Capasso
- Laboratory of Immunovirotherapy, Division of Pharmaceutical Biosciences and Centre for Drug Research, University of Helsinki, Helsinki, Finland
| | - Vincenzo Cerullo
- Laboratory of Immunovirotherapy, Division of Pharmaceutical Biosciences and Centre for Drug Research, University of Helsinki, Helsinki, Finland
| | - Johng S Rhim
- Center for Prostate Disease Research, Department of Surgery, Uniformed Services University of Health Sciences, Bethesda, MD, USA
| | - Kirsi Rilla
- Faculty of Health Sciences, School of Medicine, Institute of Biomedicine, University of Eastern Finland, Kuopio, Finland
| | - Marjo Yliperttula
- Division of Pharmaceutical Biosciences, Centre for Drug Research, Faculty of Pharmacy, University of Helsinki, Helsinki, Finland
| | - Pia R-M Siljander
- Division of Pharmaceutical Biosciences, Centre for Drug Research, Faculty of Pharmacy, University of Helsinki, Helsinki, Finland.,Division of Biochemistry and Biotechnology, Department of Biosciences, University of Helsinki, Helsinki, Finland
| |
Collapse
|
162
|
Poe AJ, Knowlton AA. Exosomes as agents of change in the cardiovascular system. J Mol Cell Cardiol 2017; 111:40-50. [PMID: 28782514 DOI: 10.1016/j.yjmcc.2017.08.002] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/25/2017] [Revised: 07/21/2017] [Accepted: 08/02/2017] [Indexed: 12/17/2022]
Abstract
Exosomes have an evolving role in paracrine and autocrine signaling, which is enhanced because these lipid vesicles are quite stable and can deliver miRNA, DNA, protein and other molecules to cells throughout the body. Most cell types release exosomes, and exosomes are found in all biological fluids, making them accessible biomarkers. Significantly, exosomes can carry a biologically potent cargo, which can alter the phenotype of recipient cells. In the cardiovascular system exosomes have been primarily studied for their role in mediating the beneficial effects of mesenchymal stem cells after myocardial injury. Exosomes released by cardiac cells in disease states, such as myocardial ischemia, can potentially have important pathophysiologic effects on other cardiac cells as well as on distant organs.
Collapse
Affiliation(s)
- A J Poe
- Molecular & Cellular Cardiology, Cardiovascular Division, Department of Medicine, University of California-Davis, Davis, CA, United States
| | - A A Knowlton
- VA Medical Center Sacramento, University of California-Davis, Davis, CA, United States; Molecular & Cellular Cardiology, Cardiovascular Division, Department of Medicine, University of California-Davis, Davis, CA, United States; Pharmacology Department, University of California-Davis, Davis, CA, United States.
| |
Collapse
|
163
|
Zabeo D, Cvjetkovic A, Lässer C, Schorb M, Lötvall J, Höög JL. Exosomes purified from a single cell type have diverse morphology. J Extracell Vesicles 2017; 6:1329476. [PMID: 28717422 PMCID: PMC5505001 DOI: 10.1080/20013078.2017.1329476] [Citation(s) in RCA: 178] [Impact Index Per Article: 25.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2016] [Indexed: 12/15/2022] Open
Abstract
Extracellular vesicles (EVs) are produced by all known organisms and are important for cell communication and physiology. Great morphological diversity has been described regarding EVs found in body fluids such as blood plasma, breast milk, and ejaculate. However, a detailed morphological analysis has never been performed on exosomes when purified from a single cell type. In this study we analysed and quantified, via multiple electron microscopy techniques, the morphology of exosomes purified from the human mast cell line HMC-1. The results revealed a wide diversity in exosome morphology, suggesting that subpopulations of exosomes with different and specific functions may exist. Our findings imply that a new, more efficient way of defining exosome subpopulations is necessary. A system was proposed where exosomes were classified into nine different categories according to their size and shape. Three additional morphological features were also found in exosomes regardless of their morphological classification. These findings show that exosomes purified from a single cell line are also morphologically diverse, similar to previous observations for EVs in body fluids. This knowledge can help to improve the interpretation of experimental results and widen our general understanding of the biological functions of exosomes.
Collapse
Affiliation(s)
- Davide Zabeo
- Department of Chemistry and Molecular Biology, University of Gothenburg, Gothenburg, Sweden
| | | | - Cecilia Lässer
- Krefting Research Center, University of Gothenburg, Gothenburg, Sweden
| | - Martin Schorb
- Electron Microscopy Core Facility, European Molecular Biology Laboratories, Heidelberg, Germany
| | - Jan Lötvall
- Krefting Research Center, University of Gothenburg, Gothenburg, Sweden
| | - Johanna L Höög
- Department of Chemistry and Molecular Biology, University of Gothenburg, Gothenburg, Sweden
| |
Collapse
|
164
|
Erb U, Zhao K, Wang Z, Xiao L, Zöller M. Murine and human pancreatic tumor exosome recovery in mouse serum: Diagnostic and prognostic potential and target cell delivery. Cancer Lett 2017; 403:1-12. [PMID: 28619525 DOI: 10.1016/j.canlet.2017.06.005] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2017] [Revised: 05/26/2017] [Accepted: 06/03/2017] [Indexed: 12/12/2022]
Abstract
Exosomes (Exo), powerful intercellular communicators, are recovered in all body fluids, suggesting suitability for diagnosis and prognosis. Easy in vitro manipulation recommends Exo as drug vehicles. Aiming to consolidate diagnostic and therapeutic potential of Exo, we evaluated recovery and fate of tumor (TEX) and exogenous Exo in syngeneic and xenogeneic mice bearing a murine or a human pancreatic adenocarcinoma. A significant increase in serum (S)-TEX was observed 2 weeks after tumor cell application. Instead, S-TEX declined within 3-6 days after tumor excision. Intravenously injected dye-labeled TEX were rapidly cleared from the serum. Partly being degraded in the liver, the majority is taken-up by PBL, liver, bone marrow and lung cells. In the tumor-bearing host TEX persisted longer becoming enriched in tumor cells and metastatic organs. Accordingly, an antibody blockade of a TEX marker hampered disseminated tumor cell settlement in selected organs. In brief, a tumor marker panel appears suited for S-TEX recovery. In murine models, S-TEX are qualified for therapy control and follow-up studies. Despite rapid clearance from the serum, Exo uptake by host cells is most promising for tailored Exo as drug transporter.
Collapse
Affiliation(s)
- Ulrike Erb
- Tumor Cell Biology, University Hospital of Surgery, Heidelberg, Germany
| | - Kun Zhao
- Tumor Cell Biology, University Hospital of Surgery, Heidelberg, Germany
| | - Zhe Wang
- Tumor Cell Biology, University Hospital of Surgery, Heidelberg, Germany
| | - Li Xiao
- Tumor Cell Biology, University Hospital of Surgery, Heidelberg, Germany
| | - Margot Zöller
- Tumor Cell Biology, University Hospital of Surgery, Heidelberg, Germany.
| |
Collapse
|
165
|
Mirzaei H, Sahebkar A, Jaafari MR, Goodarzi M, Mirzaei HR. Diagnostic and Therapeutic Potential of Exosomes in Cancer: The Beginning of a New Tale? J Cell Physiol 2017; 232:3251-3260. [PMID: 27966794 DOI: 10.1002/jcp.25739] [Citation(s) in RCA: 94] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2016] [Accepted: 12/13/2016] [Indexed: 12/21/2022]
Abstract
Exosomes have emerged as one of the main players in intercellular communication. These small nano-sized particles have many roles in various physiological pathways in normal and abnormal cells. Exosomes can carry various cargos such as proteins, mRNAs, and miRNAs to recipient cells. Uptake of exosomes and their cargo can induce and/or inhibit different cellular and molecular pathways that lead to the alteration of cell behavior. Multiple lines of evidence have indicated that exosomes released from cancer cells can effect development of cancer in different stages. These particles and their cargo could regulate different processes such as tumor growth, metastasis, drug resistance, angiogenesis, and immune system functioning. It has been observed that exosomes can be used as potential diagnostic biomarkers in various cancer types. Moreover, some studies have used these particles as biological vehicles for delivery of various drugs such as doxorubicin, siRNAs, and miRNAs. Here, we summarized the findings on the role of exosomes in different pathological processes involved in cancer. Moreover, application of these particles as diagnostic and therapeutic biomarkers in different types of cancers is discussed. J. Cell. Physiol. 232: 3251-3260, 2017. © 2016 Wiley Periodicals, Inc.
Collapse
Affiliation(s)
- Hamed Mirzaei
- Department of Medical Biotechnology, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Amirhossein Sahebkar
- Biotechnology Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mahmoud Reza Jaafari
- Nanotechnology Research Center, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mohammad Goodarzi
- Faculty of Bioscience Engineering, Department of Biosystems, Katholieke Universiteit Leuven-KU Leuven, Heverlee, Belgium
| | - Hamid Reza Mirzaei
- Department of Immunology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| |
Collapse
|
166
|
Potter EA, Dolgova EV, Proskurina AS, Efremov YR, Minkevich AM, Rozanov AS, Peltek SE, Nikolin VP, Popova NA, Seledtsov IA, Molodtsov VV, Zavyalov EL, Taranov OS, Baiborodin SI, Ostanin AA, Chernykh ER, Kolchanov NA, Bogachev SS. Gene expression profiling of tumor-initiating stem cells from mouse Krebs-2 carcinoma using a novel marker of poorly differentiated cells. Oncotarget 2017; 8:9425-9441. [PMID: 28031533 PMCID: PMC5354742 DOI: 10.18632/oncotarget.14116] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2016] [Accepted: 12/15/2016] [Indexed: 12/18/2022] Open
Abstract
Using the ability of poorly differentiated cells to natively internalize fragments of extracellular double-stranded DNA as a marker, we isolated a tumorigenic subpopulation present in Krebs-2 ascites that demonstrated the features of tumor-inducing cancer stem cells. Having combined TAMRA-labeled DNA probe and the power of RNA-seq technology, we identified a set of 168 genes specifically expressed in TAMRA-positive cells (tumor-initiating stem cells), these genes remaining silent in TAMRA-negative cancer cells. TAMRA+ cells displayed gene expression signatures characteristic of both stem cells and cancer cells. The observed expression differences between TAMRA+ and TAMRA- cells were validated by Real Time PCR. The results obtained corroborated the biological data that TAMRA+ murine Krebs-2 tumor cells are tumor-initiating stem cells. The approach developed can be applied to profile any poorly differentiated cell types that are capable of immanent internalization of double-stranded DNA.
Collapse
Affiliation(s)
- Ekaterina A. Potter
- Institute of Cytology and Genetics, Siberian Branch of the Russian Academy of Sciences, Novosibirsk 630090, Russia
| | - Evgenia V. Dolgova
- Institute of Cytology and Genetics, Siberian Branch of the Russian Academy of Sciences, Novosibirsk 630090, Russia
| | - Anastasia S. Proskurina
- Institute of Cytology and Genetics, Siberian Branch of the Russian Academy of Sciences, Novosibirsk 630090, Russia
| | - Yaroslav R. Efremov
- Institute of Cytology and Genetics, Siberian Branch of the Russian Academy of Sciences, Novosibirsk 630090, Russia
- Novosibirsk State University, Novosibirsk 630090, Russia
| | - Alexandra M. Minkevich
- Institute of Cytology and Genetics, Siberian Branch of the Russian Academy of Sciences, Novosibirsk 630090, Russia
| | - Aleksey S. Rozanov
- Institute of Cytology and Genetics, Siberian Branch of the Russian Academy of Sciences, Novosibirsk 630090, Russia
| | - Sergey E. Peltek
- Institute of Cytology and Genetics, Siberian Branch of the Russian Academy of Sciences, Novosibirsk 630090, Russia
| | - Valeriy P. Nikolin
- Institute of Cytology and Genetics, Siberian Branch of the Russian Academy of Sciences, Novosibirsk 630090, Russia
| | - Nelly A. Popova
- Institute of Cytology and Genetics, Siberian Branch of the Russian Academy of Sciences, Novosibirsk 630090, Russia
- Novosibirsk State University, Novosibirsk 630090, Russia
| | | | - Vladimir V. Molodtsov
- Novosibirsk State University, Novosibirsk 630090, Russia
- Softberry Inc., New York 10549, USA
| | - Evgeniy L Zavyalov
- Institute of Cytology and Genetics, Siberian Branch of the Russian Academy of Sciences, Novosibirsk 630090, Russia
| | - Oleg S. Taranov
- The State Research Center of Virology and Biotechnology VECTOR, Koltsovo, Novosibirsk 630559, Russia
| | - Sergey I. Baiborodin
- Institute of Cytology and Genetics, Siberian Branch of the Russian Academy of Sciences, Novosibirsk 630090, Russia
| | - Alexander A. Ostanin
- Institute of Clinical Immunology, Siberian Branch of the Russian Academy of Medical Sciences, Novosibirsk 630099, Russia
| | - Elena R. Chernykh
- Institute of Clinical Immunology, Siberian Branch of the Russian Academy of Medical Sciences, Novosibirsk 630099, Russia
| | - Nikolay A. Kolchanov
- Institute of Cytology and Genetics, Siberian Branch of the Russian Academy of Sciences, Novosibirsk 630090, Russia
| | - Sergey S. Bogachev
- Institute of Cytology and Genetics, Siberian Branch of the Russian Academy of Sciences, Novosibirsk 630090, Russia
| |
Collapse
|
167
|
Functional Roles and Therapeutic Applications of Exosomes in Hepatocellular Carcinoma. BIOMED RESEARCH INTERNATIONAL 2017; 2017:2931813. [PMID: 28265569 PMCID: PMC5318635 DOI: 10.1155/2017/2931813] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/09/2016] [Revised: 12/15/2016] [Accepted: 01/04/2017] [Indexed: 12/21/2022]
Abstract
Exosomes are important in intercellular communication. They assure the horizontal transfer of specific functional contents (i.e., proteins, lipids, RNA molecules, and circulating DNA) from donor to recipient cells. Notably, tumor-derived exosomes (TDEs) appear to be an important vehicle of specific signals in cancer, impacting on tumor growth and metastasis. Recent researches point to the characterization of exosomes in Hepatocellular Carcinoma (HCC), the major adult liver malignancy. In this review, we summarize current findings on HCC exosomes, focusing on the identification of noncoding RNAs as exosome-enriched functional regulators and new potential biomarkers. The great potential of exosomes in future HCC diagnostic and therapeutic approaches is underlined.
Collapse
|
168
|
Ramalho-Carvalho J, Graça I, Gomez A, Oliveira J, Henrique R, Esteller M, Jerónimo C. Downregulation of miR-130b~301b cluster is mediated by aberrant promoter methylation and impairs cellular senescence in prostate cancer. J Hematol Oncol 2017; 10:43. [PMID: 28166834 PMCID: PMC5294724 DOI: 10.1186/s13045-017-0415-1] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2016] [Accepted: 02/01/2017] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND Numerous DNA-damaging cellular stresses, including oncogene activation and DNA-damage response (DDR), may lead to cellular senescence. Previous observations linked microRNA deregulation with altered senescent patterns, prompting us to investigate whether epigenetic repression of microRNAs expression might disrupt senescence in prostate cancer (PCa) cells. METHODS Differential methylation mapping in prostate tissues was carried using Infinium HumanMethylation450 BeadChip. After validation of methylation and expression analyses in a larger series of prostate tissues, the functional role of the cluster miR-130b~301b was explored using in vitro studies testing cell viability, apoptosis, invasion and DNA damage in prostate cancer cell lines. Western blot and RT-qPCR were performed to support those observations. RESULTS We found that the miR-130b~301b cluster directs epigenetic activation of cell cycle inhibitors required for DDR activation, thus stimulating the senescence-associated secretory phenotype (SASP). Furthermore, overexpression of miR-130b~301b cluster markedly reduced the malignant phenotype of PCa cells. CONCLUSIONS Altogether, these data demonstrate that miR-130b~301b cluster overexpression might effectively induce PCa cell growth arrest through epigenetic regulation of proliferation-blocking genes and activation of cellular senescence.
Collapse
Affiliation(s)
- João Ramalho-Carvalho
- Cancer Biology & Epigenetics Group—Research Center (CI-IPOP), Portuguese Oncology Institute of Porto (IPO Porto), Rua Dr António Bernardino de Almeida, 4200-072 Porto, Portugal
- Cancer Epigenetics and Biology Program, Bellvitge Biomedical Research Institute, Barcelona, Catalonia Spain
- Biomedical Sciences Graduate Program, Institute of Biomedical Sciences Abel Salazar, University of Porto (ICBAS-UP), Porto, Portugal
| | - Inês Graça
- Cancer Biology & Epigenetics Group—Research Center (CI-IPOP), Portuguese Oncology Institute of Porto (IPO Porto), Rua Dr António Bernardino de Almeida, 4200-072 Porto, Portugal
- School of Allied Health Sciences (ESTSP), Polytechnic of Porto, Porto, Portugal
| | - Antonio Gomez
- Cancer Epigenetics and Biology Program, Bellvitge Biomedical Research Institute, Barcelona, Catalonia Spain
- Currently at the Gene Regulation, Stem Cells and Cancer Programme, Centre for Genomic Regulation (CRG), The Barcelona Institute of Science and Technology, Barcelona, Spain
| | - Jorge Oliveira
- Department of Urology, Portuguese Oncology Institute of Porto (IPO Porto), Porto, Portugal
| | - Rui Henrique
- Cancer Epigenetics and Biology Program, Bellvitge Biomedical Research Institute, Barcelona, Catalonia Spain
- Department of Pathology, Portuguese Oncology Institute of Porto (IPO Porto), Porto, Portugal
- Department of Pathology and Molecular Immunology, Institute of Biomedical Sciences Abel Salazar, University of Porto (ICBAS-UP), Porto, Portugal
| | - Manel Esteller
- Cancer Epigenetics and Biology Program, Bellvitge Biomedical Research Institute, Barcelona, Catalonia Spain
- Institucio Catalana de Recerca i Estudis Avançats (ICREA), Barcelona, Catalonia Spain
- Department of Physiological Sciences II, School of Medicine, University of Barcelona, Barcelona, Catalonia Spain
| | - Carmen Jerónimo
- Cancer Biology & Epigenetics Group—Research Center (CI-IPOP), Portuguese Oncology Institute of Porto (IPO Porto), Rua Dr António Bernardino de Almeida, 4200-072 Porto, Portugal
- Department of Pathology and Molecular Immunology, Institute of Biomedical Sciences Abel Salazar, University of Porto (ICBAS-UP), Porto, Portugal
| |
Collapse
|
169
|
Arena GO, Arena V, Arena M, Abdouh M. Transfer of malignant traits as opposed to migration of cells: A novel concept to explain metastatic disease. Med Hypotheses 2017; 100:82-86. [PMID: 28236854 DOI: 10.1016/j.mehy.2017.01.019] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2016] [Revised: 01/25/2017] [Accepted: 01/30/2017] [Indexed: 02/06/2023]
Abstract
Metastatic disease is believed to develop following dissemination of cells to target organs. Inability of this theory to effectively explain certain phenomena such as patterns of metastatic spread, late metastasis formation, different gene patterns between primary cancer and metastasis have brought forward the need for alternative models. Recent discoveries have strengthened the validity of theories supporting a humoral transfer of malignant traits as opposed to migration of malignant cells to explain metastatic disease in cancer patients. In light of this new evidence, we would like to highlight a model that offers a new perspective to explain cancer metastasis. In the system that we theorize, genetic material released by cancer cells would travel, either free or packed in exosomes, through the blood. Target cells located in organs deriving from the same embryological layer might uptake this genetic material due to expression of specific receptors. Interplay with the immune system would determine the fate of these oncofactors and would regulate their ability to circulate in the blood, integrate in the genome and be transcribed. We also hypothesize that the expression of cell membrane receptors such as integrins, to which cancer exosomes ligate might be mediated by inherited or acquired oncosuppressor mutations.
Collapse
Affiliation(s)
- Goffredo Orazio Arena
- Cancer Research Program, McGill University Health Centre-Research Institute, 1001 Decarie Boulevard, Montreal, Quebec H4A 3J1, Canada; Department of Surgery, McGill University, St. Mary Hospital, 3830 Lacombe Avenue, Montreal, Quebec H3T 1M5, Canada.
| | - Vincenzo Arena
- Department of Obstetrics and Gynecology, Santo Bambino Hospital, via Torre del Vescovo 4, Catania, Italy
| | - Manuel Arena
- Department of Surgical Sciences, Organ Transplantation and Advances Technologies, University of Catania, via Santa Sofia 84, Catania, Italy
| | - Mohamed Abdouh
- Cancer Research Program, McGill University Health Centre-Research Institute, 1001 Decarie Boulevard, Montreal, Quebec H4A 3J1, Canada
| |
Collapse
|
170
|
Ramalho-Carvalho J, Fromm B, Henrique R, Jerónimo C. Deciphering the function of non-coding RNAs in prostate cancer. Cancer Metastasis Rev 2017; 35:235-62. [PMID: 27221068 DOI: 10.1007/s10555-016-9628-y] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
The advent of next-generation sequencing methods is fuelling the discovery of multiple non-coding RNA transcripts with direct implication in cell biology and homeostasis. This new layer of biological regulation seems to be of particular importance in human pathogenesis, including cancer. The aberrant expression of ncRNAs is a feature of prostate cancer, as they promote tumor-suppressive or oncogenic activities, controlling multicellular events leading to carcinogenesis and tumor progression. From the small RNAs involved in the RNAi pathway to the long non-coding RNAs controlling chromatin remodeling, alternative splicing, and DNA repair, the non-coding transcriptome represents the significant majority of transcriptional output. As such, ncRNAs appear as exciting new diagnostic, prognostic, and therapeutic tools. However, additional work is required to characterize the RNA species, their functions, and their applicability to clinical practice in oncology. In this review, we summarize the most important features of ncRNA biology, emphasizing its relevance in prostate carcinogenesis and its potential for clinical applications.
Collapse
Affiliation(s)
- João Ramalho-Carvalho
- Cancer Biology & Epigenetics Group - Research Center, Portuguese Oncology Institute of Porto (CI-IPOP), Porto, Portugal.,Biomedical Sciences Graduate Program, Institute of Biomedical Sciences Abel Salazar-University of Porto (ICBAS-UP), Porto, Portugal
| | - Bastian Fromm
- Department of Tumor Biology, Institute for Cancer Research, The Norwegian Radium Hospital, Oslo University Hospital, Nydalen, N-0424, Oslo, Norway
| | - Rui Henrique
- Cancer Biology & Epigenetics Group - Research Center, Portuguese Oncology Institute of Porto (CI-IPOP), Porto, Portugal.,Departments of Pathology, Portuguese Oncology Institute of Porto, Porto, Portugal.,Department of Pathology and Molecular Immunology, Institute of Biomedical Sciences Abel Salazar, University of Porto (ICBAS-UP), Porto, Portugal
| | - Carmen Jerónimo
- Cancer Biology & Epigenetics Group - Research Center, Portuguese Oncology Institute of Porto (CI-IPOP), Porto, Portugal. .,Department of Pathology and Molecular Immunology, Institute of Biomedical Sciences Abel Salazar, University of Porto (ICBAS-UP), Porto, Portugal. .,Portuguese Oncology Institute of Porto, Research Center-LAB 3, F Bdg, 1st floor, Rua Dr António Bernardino de Almeida, 4200-072, Porto, Portugal.
| |
Collapse
|
171
|
Choi D, Lee TH, Spinelli C, Chennakrishnaiah S, D'Asti E, Rak J. Extracellular vesicle communication pathways as regulatory targets of oncogenic transformation. Semin Cell Dev Biol 2017; 67:11-22. [PMID: 28077296 DOI: 10.1016/j.semcdb.2017.01.003] [Citation(s) in RCA: 89] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2016] [Revised: 12/23/2016] [Accepted: 01/06/2017] [Indexed: 12/15/2022]
Abstract
Pathogenesis of human cancers bridges intracellular oncogenic driver events and their impact on intercellular communication. Among multiple mediators of this 'pathological connectivity' the role of extracellular vesicles (EVs) and their subsets (exosomes, ectosomes, oncosomes) is of particular interest for several reasons. The release of EVs from cancer cells represents a unique mechanism of regulated expulsion of bioactive molecules, a process that also mediates cell-to-cell transfer of lipids, proteins, and nucleic acids. Biological effects of these processes have been implicated in several aspects of cancer-related pathology, including tumour growth, invasion, angiogenesis, metastasis, immunity and thrombosis. Notably, the emerging evidence suggests that oncogenic mutations may impact several aspects of EV-mediated cell-cell communication including: (i) EV release rate and protein content; (ii) molecular composition of cancer EVs; (iii) the inclusion of oncogenic and mutant macromolecules in the EV cargo; (iv) EV-mediated release of genomic DNA; (v) deregulation of mechanisms responsible for EV biogenesis (vesiculome) and (vi) mechanisms of EV uptake by cancer cells. Intriguingly, EV-mediated intercellular transfer of mutant and oncogenic molecules between subpopulations of cancer cells, their indolent counterparts and stroma may exert profound biological effects that often resemble (but are not tantamount to) oncogenic transformation, including changes in cell growth, clonogenicity and angiogenic phenotype, or cause cell stress and death. However, several biological barriers likely curtail a permanent horizontal transformation of normal cells through EV-mediated mechanisms. The ongoing analysis and targeting of EV-mediated intercellular communication pathways can be viewed as a new therapeutic paradigm in cancer, while the analysis of oncogenic cargo contained in EVs released from cancer cells into biofluids is being developed for clinical use as a biomarker and companion diagnostics. Indeed, studies are underway to further explore the multiple links between molecular causality in cancer and various aspects of cellular vesiculation.
Collapse
Affiliation(s)
- Dongsic Choi
- Research Institute of the McGill University Health Centre, Glen Site, McGill University, 1001 Decarie Blvd, Montreal, QC, H4A 3J1, Canada
| | - Tae Hoon Lee
- Research Institute of the McGill University Health Centre, Glen Site, McGill University, 1001 Decarie Blvd, Montreal, QC, H4A 3J1, Canada
| | - Cristiana Spinelli
- Research Institute of the McGill University Health Centre, Glen Site, McGill University, 1001 Decarie Blvd, Montreal, QC, H4A 3J1, Canada
| | - Shilpa Chennakrishnaiah
- Research Institute of the McGill University Health Centre, Glen Site, McGill University, 1001 Decarie Blvd, Montreal, QC, H4A 3J1, Canada
| | - Esterina D'Asti
- Research Institute of the McGill University Health Centre, Glen Site, McGill University, 1001 Decarie Blvd, Montreal, QC, H4A 3J1, Canada
| | - Janusz Rak
- Research Institute of the McGill University Health Centre, Glen Site, McGill University, 1001 Decarie Blvd, Montreal, QC, H4A 3J1, Canada.
| |
Collapse
|
172
|
Moustafa AA, Ziada M, Elshaikh A, Datta A, Kim H, Moroz K, Srivastav S, Thomas R, Silberstein JL, Moparty K, Salem FEH, El-Habit OH, Abdel-Mageed AB. Identification of microRNA signature and potential pathway targets in prostate cancer. Exp Biol Med (Maywood) 2016; 242:536-546. [PMID: 27903835 DOI: 10.1177/1535370216681554] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Prostate cancer (PC) is the most common and the second leading cause of cancer-related death among American men. Early diagnosis is a prerequisite to improving therapeutic benefits. However, the current clinical biomarkers for PC do not reliably decipher indolent PC from other urogenital disorders. Thus, effective clinical intervention necessitates development of new biomarkers for early detection of PC. The present study aimed to identify the miRNA signature in organ-confined (Gleason Score 6) prostate tumors. MicroRNA (miRNA/miR) array analysis identified 118 upregulated and 73 downregulated miRNAs in microdissected tumors in comparison to matched neighboring normal prostate epithelium. The miRs-Plus-A1083, -92b-5p, -18a-3p, -19a-3p, -639, -3622b-3p, -3189-3p, -155-3p, -410, -1179, 548b-5p, and -4469 are predominantly expressed (7-11-fold), whereas miRs-595, 4490, -3120-5p, -1299, -21-5p, -3677-3, -let-7b-5p, -5189, 3-121-5p, -4518, -200a-5p, -3682-5p, -3689d, -3149 represent the most downregulated (12-113-fold) miRNAs in microdissected prostate tumors. The array expression profile of selected miRNA signature and their potential mRNA targets was validated by qRT-PCR analysis in PC cell lines. Integrated in silico and computational prediction analyses demonstrated that the dysregulated miRNA signature map to key regulatory factors involved in tumorigenesis, including cell cycle, apoptosis, and p53 pathways. The newly identified miRNA signature has potential clinical utility as biomarkers, prognostic indicators, and therapeutic targets for early detection of PC. Further studies are needed to assess the functional significance and clinical usefulness of the identified miRNAs. Impact Statement To our knowledge his is the first study of identifying miRNA signatures in microdissected indolent (Gleason score 6) prostate cancer in comparison to matched normal prostate epithelium. By employing in silico and computational prediction analysis, the study provides a landscape of potential miRNA targets and key cellular pathways involved in prostate tumorigenesis. Identification if miRNAs and their relevant targets and pathways pave the way for underpinning their mechanistic role of miRNAs in human prostate tumorigenesis, and possibly other human cancers. Importantly, the outcome of the study has important clinical implications for the management of prostate cancer, including the use of miRNA(s) as biomarkers for early detection of prostate cancer.
Collapse
Affiliation(s)
- Ahmed A Moustafa
- 1 Department of Urology, Tulane University School of Medicine, New Orleans, LA 70112, USA.,2 Zoology and Entomology Department, Faculty of Science, Helwan University, Cairo 11790, Egypt
| | - Mohammed Ziada
- 1 Department of Urology, Tulane University School of Medicine, New Orleans, LA 70112, USA
| | - Abubaker Elshaikh
- 1 Department of Urology, Tulane University School of Medicine, New Orleans, LA 70112, USA
| | - Amrita Datta
- 1 Department of Urology, Tulane University School of Medicine, New Orleans, LA 70112, USA
| | - Hogyoung Kim
- 1 Department of Urology, Tulane University School of Medicine, New Orleans, LA 70112, USA
| | - Krzysztof Moroz
- 3 Department of Pathology, Tulane University School of Medicine, New Orleans, LA 70112, USA.,4 Tulane Cancer Center, Tulane University School of Medicine, New Orleans, LA 70112, USA
| | - Sudesh Srivastav
- 5 Department of Biostatistics, Tulane University School of Tropical Medicine, New Orleans, LA 70112, USA
| | - Raju Thomas
- 1 Department of Urology, Tulane University School of Medicine, New Orleans, LA 70112, USA.,4 Tulane Cancer Center, Tulane University School of Medicine, New Orleans, LA 70112, USA
| | - Jonathan L Silberstein
- 1 Department of Urology, Tulane University School of Medicine, New Orleans, LA 70112, USA
| | - Krishnarao Moparty
- 1 Department of Urology, Tulane University School of Medicine, New Orleans, LA 70112, USA
| | - Fatma Elzahraa H Salem
- 2 Zoology and Entomology Department, Faculty of Science, Helwan University, Cairo 11790, Egypt
| | - Ola H El-Habit
- 2 Zoology and Entomology Department, Faculty of Science, Helwan University, Cairo 11790, Egypt
| | - Asim B Abdel-Mageed
- 1 Department of Urology, Tulane University School of Medicine, New Orleans, LA 70112, USA.,4 Tulane Cancer Center, Tulane University School of Medicine, New Orleans, LA 70112, USA
| |
Collapse
|
173
|
Abdouh M, Hamam D, Arena V, Arena M, Alamri H, Arena GO. Novel blood test to predict neoplastic activity in healthy patients and metastatic recurrence after primary tumor resection. J Circ Biomark 2016; 5:1849454416663661. [PMID: 28936263 PMCID: PMC5548309 DOI: 10.1177/1849454416663661] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2016] [Accepted: 07/13/2016] [Indexed: 12/17/2022] Open
Abstract
We reported that single oncosuppressor-mutated (SOM) cells turn malignant when exposed to cancer patients’ sera. We tested the possibility to incorporate this discovery into a biological platform able to detect cancer in healthy individuals and to predict metastases after tumor resection. Blood was drawn prior to tumor resection and within a year after surgery. Blood samples from healthy individuals or metastatic patients were used as negative and positive controls, respectively. Patients at risk for cancer were included in the screening cohort. Once treated, cells were injected into nonobese diabetic/severe combined immunodeficiency mice to monitor tumor growth. All samples of sera coming from metastatic patients transformed SOM cells into malignant cells. Four samples from screened patients transformed SOM cells. Further clinical tests done on these patients showed the presence of early cancerous lesions despite normal tumor markers. Based on the xenotransplants size, we were able to predict metastasis in three patients before diagnostic tests confirmed the presence of the metastatic lesions. These data show that this serum-based platform has potentials to be used for cancer screening and for identification of patients at risks to develop metastases regardless of the Tumor Node Metastasis (TNM) stage or tumor markers level.
Collapse
Affiliation(s)
- Mohamed Abdouh
- Cancer Research Program, McGill University Health Centre-Research Institute, Montreal, Quebec, Canada
| | - Dana Hamam
- Cancer Research Program, McGill University Health Centre-Research Institute, Montreal, Quebec, Canada.,Department of Experimental Surgery, Faculty of Medicine, McGill University, Montreal, Quebec, Canada
| | - Vincenzo Arena
- Department of Obstetrics and Gynecology, Santo Bambino Hospital, Catania, Italy
| | - Manuel Arena
- Department of Surgical Sciences, Organ Transplantation and Advances Technologies, University of Catania, Catania, Italy
| | - Hussam Alamri
- Cancer Research Program, McGill University Health Centre-Research Institute, Montreal, Quebec, Canada.,Department of Surgery, King Saud University, Riyadh, Saudi Arabia
| | - Goffredo Orazio Arena
- Cancer Research Program, McGill University Health Centre-Research Institute, Montreal, Quebec, Canada.,Department of Surgery, McGill University, St Mary Hospital, Montreal, Quebec, Canada
| |
Collapse
|
174
|
Filella X, Foj L. Prostate Cancer Detection and Prognosis: From Prostate Specific Antigen (PSA) to Exosomal Biomarkers. Int J Mol Sci 2016; 17:ijms17111784. [PMID: 27792187 PMCID: PMC5133785 DOI: 10.3390/ijms17111784] [Citation(s) in RCA: 76] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2016] [Revised: 10/04/2016] [Accepted: 10/14/2016] [Indexed: 12/22/2022] Open
Abstract
Prostate specific antigen (PSA) remains the most used biomarker in the management of early prostate cancer (PCa), in spite of the problems related to false positive results and overdiagnosis. New biomarkers have been proposed in recent years with the aim of increasing specificity and distinguishing aggressive from non-aggressive PCa. The emerging role of the prostate health index and the 4Kscore is reviewed in this article. Both are blood-based tests related to the aggressiveness of the tumor, which provide the risk of suffering PCa and avoiding negative biopsies. Furthermore, the use of urine has emerged as a non-invasive way to identify new biomarkers in recent years, including the PCA3 and TMPRSS2:ERG fusion gene. Available results about the PCA3 score showed its usefulness to decide the repetition of biopsy in patients with a previous negative result, although its relationship with the aggressiveness of the tumor is controversial. More recently, aberrant microRNA expression in PCa has been reported by different authors. Preliminary results suggest the utility of circulating and urinary microRNAs in the detection and prognosis of PCa. Although several of these new biomarkers have been recommended by different guidelines, large prospective and comparative studies are necessary to establish their value in PCa detection and prognosis.
Collapse
Affiliation(s)
- Xavier Filella
- Department of Biochemistry and Molecular Genetics (CDB), Hospital Clínic, IDIBAPS, C/Villarroel, 170, 08036 Barcelona, Catalonia, Spain.
| | - Laura Foj
- Department of Biochemistry and Molecular Genetics (CDB), Hospital Clínic, IDIBAPS, C/Villarroel, 170, 08036 Barcelona, Catalonia, Spain.
| |
Collapse
|
175
|
Abstract
A large group of small Rab GTPases which mediate secretory and endosomal membrane transport, as well as autophagosome biogenesis, are essential components of vesicle trafficking machinery. Specific Rab protein together with the cognate effectors coordinates the dynamics of trafficking pathway and determines the cargo proteins destination. Functional impairments of Rab proteins by mutations or post-translational modifications disrupting the regulatory network of vesicle trafficking have been implicated in tumorigenesis. Therefore, the vesicle transport regulators play essential roles in the mediation of cancer cell biology, including uncontrolled cell growth, invasion and metastasis. The context-dependent role of the same Rab to act as either an oncoprotein or tumor suppressor in different cancers is found. Such discrepancies may be due in part to the interaction of specific Rab protein with different effectors or cargos in various tumors. Here, we review recent advances in the roles of Rab GTPases in communicating with other effectors in tumor progression. In this review, we also emphasize dysregulation of Rab-mediated membrane delivery shifting normal cell behaviors toward malignancy. Thus, recovery of the dysregulated vesicle trafficking systems in cancer cells may provide future directions for potential strategy to restrain tumor progression.
Collapse
Affiliation(s)
- Hong-Tai Tzeng
- Department of Pharmacology, National Cheng Kung University, College of Medicine, No.1, University Road, Tainan, 70101, Taiwan, People's Republic of China
| | - Yi-Ching Wang
- Department of Pharmacology, National Cheng Kung University, College of Medicine, No.1, University Road, Tainan, 70101, Taiwan, People's Republic of China. .,Institute of Basic Medical Sciences, College of Medicine, National Cheng Kung University, No.1, University Road, Tainan, 70101, Taiwan, People's Republic of China.
| |
Collapse
|
176
|
Xu W, Yang Z, Lu N. From pathogenesis to clinical application: insights into exosomes as transfer vectors in cancer. JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2016; 35:156. [PMID: 27686593 PMCID: PMC5043625 DOI: 10.1186/s13046-016-0429-5] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/25/2016] [Accepted: 09/15/2016] [Indexed: 12/21/2022]
Abstract
Exosomes are nanoscale extracellular membrane vesicles that are created by the fusion of an intracellular multivesicular body with the cell membrane. They are widely distributed in serum, urine, saliva and other biological fluids. As important transfer vectors for intercellular communication and genetic material, exosomes can stimulate target cells directly via receptor-mediated interactions or via the transfer of various bioactive molecules, such as cell membrane receptors, proteins, mRNAs and microRNAs, thus exerting their biological functions. This review focuses on the biological characteristics of exosomes, as well as their role and underlying mechanisms of action in the evolution of tumor formation, metastasis, drug resistance and other malignant behaviors. Additionally, this review emphasizes the potential applications of exosomes in the treatment of tumors. Further research may provide new ideas and methods to establish effective, exosome-based strategies for the early diagnosis and treatment of tumors.
Collapse
Affiliation(s)
- Wenting Xu
- Department of Gastroenterology, The First Affiliated Hospital of Nanchang University, 17 YongWaizheng Street, Nanchang, Jiangxi, 330006, China
| | - Zhen Yang
- Department of Gastroenterology, The First Affiliated Hospital of Nanchang University, 17 YongWaizheng Street, Nanchang, Jiangxi, 330006, China.
| | - Nonghua Lu
- Department of Gastroenterology, The First Affiliated Hospital of Nanchang University, 17 YongWaizheng Street, Nanchang, Jiangxi, 330006, China.
| |
Collapse
|
177
|
Kim H, Datta A, Talwar S, Saleem SN, Mondal D, Abdel-Mageed AB. Estradiol-ERβ2 signaling axis confers growth and migration of CRPC cells through TMPRSS2-ETV5 gene fusion. Oncotarget 2016; 8:62820-62833. [PMID: 28968951 PMCID: PMC5609883 DOI: 10.18632/oncotarget.11355] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2015] [Accepted: 07/26/2016] [Indexed: 12/12/2022] Open
Abstract
Estrogen receptor beta (ERβ) splice variants are implicated in prostate cancer (PC) progression; however their underlying mechanisms remain elusive. We report that non-canonical activation of estradiol (E2)-ERβ2 signaling axis primes growth, colony-forming ability and migration of the androgen receptor (AR)-null castration-resistant PC (CRPC) cells under androgen-deprived conditions (ADC). The non-classical E2-ERβ2 mediates phosphorylation and activation of Src-IGF-1R complex, which in turn triggers p65-dependent transcriptional upregulation of the androgen-regulated serine protease TMPRSS2:ETV5a/TMPRSS2:ETV5b gene fusions under ADC. siRNA silencing of TMPRSS2 and/or ETV5 suggests that TMPRSS2:ETV5 fusions facilitates the E2-ERβ induced growth and migration effects via NF-κB-dependent induction of cyclin D1 and MMP2 and MMP9 in PC-3 cells. Collectively, our results unravel the functional significance of oncogenic TMPRSS2:ETV5 fusions in mediating growth and migration of E2-ERβ2 signaling axis in CRPC cells. E2-ERβ2 signaling axis may have significant therapeutic and prognostic implications in patients with CRPC.
Collapse
Affiliation(s)
- Hogyoung Kim
- Department of Urology, Tulane University School of Medicine, New Orleans, Louisiana, 70112, USA
| | - Amrita Datta
- Department of Urology, Tulane University School of Medicine, New Orleans, Louisiana, 70112, USA
| | - Sudha Talwar
- Department of Urology, Tulane University School of Medicine, New Orleans, Louisiana, 70112, USA
| | - Sarmad N Saleem
- Department of Urology, Tulane University School of Medicine, New Orleans, Louisiana, 70112, USA
| | - Debasis Mondal
- Department of Pharmacology, Tulane University School of Medicine, New Orleans, Louisiana, 70112, USA
| | - Asim B Abdel-Mageed
- Department of Urology, Tulane University School of Medicine, New Orleans, Louisiana, 70112, USA.,Department of Pharmacology, Tulane University School of Medicine, New Orleans, Louisiana, 70112, USA.,Tulane Cancer Center, Tulane University School of Medicine, New Orleans, Louisiana, 70112, USA
| |
Collapse
|
178
|
Singh A, Fedele C, Lu H, Nevalainen MT, Keen JH, Languino LR. Exosome-mediated Transfer of αvβ3 Integrin from Tumorigenic to Nontumorigenic Cells Promotes a Migratory Phenotype. Mol Cancer Res 2016; 14:1136-1146. [PMID: 27439335 DOI: 10.1158/1541-7786.mcr-16-0058] [Citation(s) in RCA: 104] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2016] [Revised: 06/13/2016] [Accepted: 07/03/2016] [Indexed: 12/20/2022]
Abstract
The αvβ3 integrin is known to be highly upregulated during cancer progression and promotes a migratory and metastatic phenotype in many types of tumors. We hypothesized that the αvβ3 integrin is transferred through exosomes and, upon transfer, has the ability to support functional aberrations in recipient cells. Here, for the first time, it is demonstrated that αvβ3 is present in exosomes released from metastatic PC3 and CWR22Pc prostate cancer cells. Exosomal β3 is transferred as a protein from donor to nontumorigenic and tumorigenic cells as β3 protein or mRNA levels remain unaffected upon transcription or translation inhibition in recipient cells. Furthermore, it is shown that upon exosome uptake, de novo expression of an αvβ3 increases adhesion and migration of recipient cells on an αvβ3 ligand, vitronectin. To evaluate the relevance of these findings, exosomes were purified from the blood of TRAMP mice carrying tumors where the expression of αvβ3 is found higher than in exosomes from wild-type mice. In addition, it is demonstrated that αvβ3 is coexpressed with synaptophysin, a biomarker for aggressive neuroendocrine prostate cancer. IMPLICATIONS Overall this study reveals that the αvβ3 integrin is transferred from tumorigenic to nontumorigenic cells via exosomes, and its de novo expression in recipient cells promotes cell migration on its ligand. The increased expression of αvβ3 in exosomes from mice bearing tumors points to its clinical relevance and potential use as a biomarker. Mol Cancer Res; 14(11); 1136-46. ©2016 AACR.
Collapse
Affiliation(s)
- Amrita Singh
- Prostate Cancer Discovery and Development Program, Sidney Kimmel Cancer Center, Thomas Jefferson University, Philadelphia, Pennsylvania.,Department of Cancer Biology, Sidney Kimmel Cancer Center, Thomas Jefferson University, Philadelphia, Pennsylvania
| | - Carmine Fedele
- Prostate Cancer Discovery and Development Program, Sidney Kimmel Cancer Center, Thomas Jefferson University, Philadelphia, Pennsylvania.,Department of Cancer Biology, Sidney Kimmel Cancer Center, Thomas Jefferson University, Philadelphia, Pennsylvania
| | - Huimin Lu
- Prostate Cancer Discovery and Development Program, Sidney Kimmel Cancer Center, Thomas Jefferson University, Philadelphia, Pennsylvania.,Department of Cancer Biology, Sidney Kimmel Cancer Center, Thomas Jefferson University, Philadelphia, Pennsylvania
| | - Marja T Nevalainen
- Department of Cancer Biology, Sidney Kimmel Cancer Center, Thomas Jefferson University, Philadelphia, Pennsylvania.,Department of Pathology, Medical College of Wisconsin, Milwaukee, Wisconsin
| | - James H Keen
- Department of Biochemistry and Molecular Biology, Sidney Kimmel Cancer Center, Thomas Jefferson University, Philadelphia, Pennsylvania
| | - Lucia R Languino
- Prostate Cancer Discovery and Development Program, Sidney Kimmel Cancer Center, Thomas Jefferson University, Philadelphia, Pennsylvania. .,Department of Cancer Biology, Sidney Kimmel Cancer Center, Thomas Jefferson University, Philadelphia, Pennsylvania
| |
Collapse
|
179
|
Liu CM, Hsieh CL, Shen CN, Lin CC, Shigemura K, Sung SY. Exosomes from the tumor microenvironment as reciprocal regulators that enhance prostate cancer progression. Int J Urol 2016; 23:734-44. [PMID: 27397852 DOI: 10.1111/iju.13145] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2016] [Accepted: 05/22/2016] [Indexed: 12/21/2022]
Abstract
Distant organ metastasis of prostate cancer is a puzzle, and various theories have successively arisen to explain the mechanism of lethal cancer progression. While perhaps agreeable to many cancer biologists, the very statement of "seed and soil" proposed by Stephan Paget in 1881 is arguably still the major statement for organ-specific cancer metastasis. Since recent studies showed important correlations of regulation of cancer cells and the microenvironment, exosomes from cancer and stromal cells seem to create another important niche for metastasis. Stromal cells pretreated with exosomes from metastatic cancer cells increase the potential of change stromal cells. The poorly metastatic cancer cells could also enhance malignancy through transfer of proteins, microribonucleic acid and messenger ribonucleic acid to recipient cancer cells. Herein, we reviewed extracellular exosomes as a factor involved in cross-talk between stromal and prostate cancer epithelial cells.
Collapse
Affiliation(s)
- Che-Ming Liu
- The Ph.D. Program for Cancer Biology and Drug Discovery, China Medical University and Academia Sinica, Taichung, Taiwan.,The Ph.D. Program for Translational Medicine, College of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan
| | - Chia-Ling Hsieh
- The Ph.D. Program for Translational Medicine, College of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan
| | - Chia-Ning Shen
- Genomics Research Center, Academia Sinica, Taipei, Taiwan
| | - Cheng-Chieh Lin
- The Ph.D. Program for Cancer Biology and Drug Discovery, China Medical University and Academia Sinica, Taichung, Taiwan
| | - Katsumi Shigemura
- Department of Urology, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Shian-Ying Sung
- The Ph.D. Program for Translational Medicine, College of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan
| |
Collapse
|
180
|
Wu L, Zhang X, Zhang B, Shi H, Yuan X, Sun Y, Pan Z, Qian H, Xu W. Exosomes derived from gastric cancer cells activate NF-κB pathway in macrophages to promote cancer progression. Tumour Biol 2016; 37:12169-12180. [PMID: 27220495 DOI: 10.1007/s13277-016-5071-5] [Citation(s) in RCA: 127] [Impact Index Per Article: 15.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2016] [Accepted: 05/05/2016] [Indexed: 01/25/2023] Open
Abstract
Exosomes are nano-sized membrane vesicles secreted by both normal and cancer cells. Emerging evidence indicates that cancer cells derived exosomes contribute to cancer progression through the modulation of tumor microenvironment. However, the effects of exosomes derived from gastric cancer cells on macrophages are not well understood. In this study, we investigated the biological role of gastric cancer cells derived exosomes in the activation of macrophages. We demonstrated that gastric cancer cells derived exosomes activated macrophages to express increased levels of proinflammatory factors, which in turn promoted tumor cell proliferation and migration. In addition, gastric cancer cells derived exosomes remarkably upregulated the phosphorylation of NF-κB in macrophages. Inhibiting the activation of NF-κB reversed the upregulation of proinflammatory factors in macrophages and blocked their promoting effects on gastric cancer cells. Moreover, we found that gastric cancer cells derived exosomes could also activate macrophages from human peripheral blood monocytes through the activation of NF-κB. In conclusion, our results suggest that gastric cancer cells derived exosomes stimulate the activation of NF-κB pathway in macrophages to promote cancer progression, which provides a potential therapeutic approach for gastric cancer by interfering with the interaction between exosomes and macrophages in tumor microenvironment.
Collapse
Affiliation(s)
- Lijun Wu
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, 301 Xuefu Road, Zhenjiang, Jiangsu, 212013, China
| | - Xu Zhang
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, 301 Xuefu Road, Zhenjiang, Jiangsu, 212013, China
| | - Bin Zhang
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, 301 Xuefu Road, Zhenjiang, Jiangsu, 212013, China
| | - Hui Shi
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, 301 Xuefu Road, Zhenjiang, Jiangsu, 212013, China
| | - Xiao Yuan
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, 301 Xuefu Road, Zhenjiang, Jiangsu, 212013, China
| | - Yaoxiang Sun
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, 301 Xuefu Road, Zhenjiang, Jiangsu, 212013, China
| | - Zhaoji Pan
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, 301 Xuefu Road, Zhenjiang, Jiangsu, 212013, China
| | - Hui Qian
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, 301 Xuefu Road, Zhenjiang, Jiangsu, 212013, China.
| | - Wenrong Xu
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, 301 Xuefu Road, Zhenjiang, Jiangsu, 212013, China.
| |
Collapse
|
181
|
Lopatina T, Gai C, Deregibus MC, Kholia S, Camussi G. Cross Talk between Cancer and Mesenchymal Stem Cells through Extracellular Vesicles Carrying Nucleic Acids. Front Oncol 2016; 6:125. [PMID: 27242964 PMCID: PMC4876347 DOI: 10.3389/fonc.2016.00125] [Citation(s) in RCA: 81] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2016] [Accepted: 05/09/2016] [Indexed: 01/08/2023] Open
Abstract
Extracellular vesicles (EVs) are considered to be a novel complex mechanism of cell communication within the tumor microenvironment. EVs may act as vehicles for transcription factors and nucleic acids inducing epigenetic changes in recipient cells. Since tumor EVs may be present in patient biological fluids, it is important to investigate their function and molecular mechanisms of action. It has been shown that tumor cells release EVs, which are capable of regulating cell apoptosis, proliferation, invasion, and epithelial-mesenchymal transition, as well as to suppress activity of immune cells, to enhance angiogenesis, and to prepare a favorable microenvironment for metastasis. On the other hand, EVs derived from stromal cells, such as mesenchymal stem cells (MSCs), may influence the phenotype of tumor cells through reciprocal cross talk greatly influenced by the transcription factors and nucleic acids they carry. In particular, non-coding RNAs (ncRNAs), including microRNAs and long ncRNAs, have recently been identified as the main candidates for the phenotypic changes induced in the recipient cells by EVs. ncRNAs, which are important regulators of mRNA and protein expression, can function either as tumor suppressors or as oncogenes, depending on their targets. Herein, we have attempted to revise actual evidence reported in the literature on the role of EVs in tumor biology with particular regard to the cross talk of ncRNAs between cancer cells and MSCs.
Collapse
Affiliation(s)
- Tatiana Lopatina
- Department of Medical Sciences, Molecular Biotechnology Center, University of Torino , Torino , Italy
| | - Chiara Gai
- Department of Medical Sciences, Molecular Biotechnology Center, University of Torino , Torino , Italy
| | - Maria Chiara Deregibus
- Department of Medical Sciences, Molecular Biotechnology Center, University of Torino , Torino , Italy
| | - Sharad Kholia
- Department of Medical Sciences, Molecular Biotechnology Center, University of Torino , Torino , Italy
| | - Giovanni Camussi
- Department of Medical Sciences, Molecular Biotechnology Center, University of Torino , Torino , Italy
| |
Collapse
|
182
|
Hamam D, Abdouh M, Gao ZH, Arena V, Arena M, Arena GO. Transfer of malignant trait to BRCA1 deficient human fibroblasts following exposure to serum of cancer patients. JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2016; 35:80. [PMID: 27179759 PMCID: PMC4868000 DOI: 10.1186/s13046-016-0360-9] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/04/2016] [Accepted: 05/09/2016] [Indexed: 02/06/2023]
Abstract
Background It was reported that metastases might occur via transfer of biologically active blood circulating molecules from the primary tumor to distant organs rather than only migration of cancer cells. We showed in an earlier study that exposure of immortalized human embryonic kidney cells (HEK 293) to cancer patient sera, induce their transformation into undifferentiated cancers due to a horizontal transfer of malignant traits. In the present work, we tested the hypothesis that even other human cells as long as they are deficient for a single oncosuppressor gene might undergo malignant transformation when exposed to human cancer serum. Methods We used the CRISPR/Cas9 system to establish a stable BRCA1 knockout (KO) in human fibroblasts. The BRCA1-KO fibroblasts were exposed to cancer patients’ sera or healthy patients’ sera for 2 weeks. Treated cells were analyzed for cell proliferation and transformation to study their susceptibility to the oncogenic potential of cancer patients’ sera and to determine the possible mechanisms underlying their hypothesized transformation. Results BRCA1-KO fibroblasts treated with cancer patients’ sera displayed higher proliferation and underwent malignant transformation as opposed to wild type control fibroblasts, which were not affected by exposure to cancer patients’ sera. The malignant transformation was not seen when BRCA1-KO fibroblasts were treated with healthy human sera. Histological analysis of tumors generated by BRCA1-KO fibroblasts showed that they were carcinomas with phenotypical characteristics related to the cancers of the blood donor patients. Interestingly, BRCA1-KO fibroblasts were significantly more prone to internalize serum-derived exosomes, when compared to wild type fibroblasts. This suggests that oncosuppressor genes might protect the integrity of the cell genome also by blocking integration of cancer-derived exosomes. Conclusion These data support the hypothesis that any human cells carrying a single oncosuppressor mutation is capable of integrating cancer factors carried in the blood and undergo complete malignant transformation. Oncosuppressor genes might protect the cell genome by impeding the integration inside the cells of these mutating factors. Electronic supplementary material The online version of this article (doi:10.1186/s13046-016-0360-9) contains supplementary material, which is available to authorized users.
Collapse
Affiliation(s)
- Dana Hamam
- Cancer Research Program, McGill University Health Centre-Research Institute, 1001 Decarie Boulevard, Montreal, H4A 3J1, QC, Canada.,Department of Experimental Surgery, Faculty of Medicine, McGill University, 845 Rue Sherbrooke O, Montreal, H3A 0G4, QC, Canada
| | - Mohamed Abdouh
- Cancer Research Program, McGill University Health Centre-Research Institute, 1001 Decarie Boulevard, Montreal, H4A 3J1, QC, Canada
| | - Zu-Hua Gao
- Department of Pathology, McGill University Health Centre-Research Institute, 1001 Decarie Boulevard, H4A 3J1, Montreal, QC, Canada
| | - Vincenzo Arena
- Department of Obstetrics and Gynecology, Santo Bambino Hospital, via Torre del Vescovo 4, Catania, Italy
| | - Manuel Arena
- Department of Surgical Sciences, Organ Transplantation and Advances Technologies, University of Catania, via Santa Sofia 84, Catania, Italy
| | - Goffredo Orazio Arena
- Cancer Research Program, McGill University Health Centre-Research Institute, 1001 Decarie Boulevard, Montreal, H4A 3J1, QC, Canada. .,Department of Surgery, McGill University, St. Mary Hospital, 3830 Lacombe Avenue, Montreal, H3T 1M5, QC, Canada.
| |
Collapse
|
183
|
Syn N, Wang L, Sethi G, Thiery JP, Goh BC. Exosome-Mediated Metastasis: From Epithelial-Mesenchymal Transition to Escape from Immunosurveillance. Trends Pharmacol Sci 2016; 37:606-617. [PMID: 27157716 DOI: 10.1016/j.tips.2016.04.006] [Citation(s) in RCA: 362] [Impact Index Per Article: 45.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2016] [Revised: 04/08/2016] [Accepted: 04/11/2016] [Indexed: 01/02/2023]
Abstract
Exosomes are extracellular signalosomes that facilitate eukaryotic intercellular communication under a wide range of normal physiological contexts. In malignancies, this regulatory circuit is co-opted to promote cancer cell survival and outgrowth. Tumour-derived exosomes (TDEs) carry a pro-EMT (epithelial-mesenchymal transition) programme including transforming growth factor beta (TGFβ), caveolin-1, hypoxia-inducible factor 1 alpha (HIF1α), and β-catenin that enhances the invasive and migratory capabilities of recipient cells, and contributes to stromal remodelling and premetastatic niche formation. The integrin expression patterns on TDEs appear to dictate their preferential uptake by organ-specific cells, implying a crucial role of this pathway in organotropic metastasis. Through the expression of immunomodulatory molecules such as CD39 and CD73, TDEs modify the immune contexture of the tumour microenvironment, which could have implications for immunotherapy. Hence, targeting TDE dysregulation pathways, such as the heparanase/syndecan-1 axis, could represent novel therapeutic strategies in the quest to conquer cancer.
Collapse
Affiliation(s)
- Nicholas Syn
- Cancer Science Institute of Singapore, Centre for Translational Medicine, National University of Singapore, 14 Medical Drive, #12-01, Singapore 117599, Singapore; Department of Haematology-Oncology, National University Cancer Institute, 1E Kent Ridge Road, NUHS Tower Block, Level 7, Singapore 119228, Singapore
| | - Lingzhi Wang
- Cancer Science Institute of Singapore, Centre for Translational Medicine, National University of Singapore, 14 Medical Drive, #12-01, Singapore 117599, Singapore; Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117600, Singapore.
| | - Gautam Sethi
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117600, Singapore
| | - Jean-Paul Thiery
- Cancer Science Institute of Singapore, Centre for Translational Medicine, National University of Singapore, 14 Medical Drive, #12-01, Singapore 117599, Singapore; Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117596, Singapore; UMR 7057 Matter and Complex Systems University Paris Denis Diderot, Paris, France; Comprehensive Cancer Center Institut Gustave Roussy, Villejuif, France
| | - Boon-Cher Goh
- Cancer Science Institute of Singapore, Centre for Translational Medicine, National University of Singapore, 14 Medical Drive, #12-01, Singapore 117599, Singapore; Department of Haematology-Oncology, National University Cancer Institute, 1E Kent Ridge Road, NUHS Tower Block, Level 7, Singapore 119228, Singapore; Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117600, Singapore
| |
Collapse
|
184
|
Li X, Wang S, Zhu R, Li H, Han Q, Zhao RC. Lung tumor exosomes induce a pro-inflammatory phenotype in mesenchymal stem cells via NFκB-TLR signaling pathway. J Hematol Oncol 2016; 9:42. [PMID: 27090786 PMCID: PMC4836087 DOI: 10.1186/s13045-016-0269-y] [Citation(s) in RCA: 154] [Impact Index Per Article: 19.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2016] [Accepted: 04/11/2016] [Indexed: 02/06/2023] Open
Abstract
Background In tumor microenvironment, a continuous cross-talk between cancer cells and other cellular components is required to sustain tumor progression. Accumulating evidence suggests that exosomes, a novel way of cell communication, play an important role in such cross-talk. Exosomes could facilitate the direct intercellular transfer of proteins, lipids, and miRNA/mRNA/DNAs between cells. Since mesenchymal stem cells (MSCs) can be attracted to tumor sites and become an important component of the tumor microenvironment, there is an urgent need to reveal the effect of tumor exosomes on MSCs and to further explore the underlying molecular mechanisms. Methods Exosomes were harvested from lung cancer cell line A549 and added to MSCs. Secretion of inflammation-associated cytokines in exosome-treated MSCs were analyzed by RT-PCR and ELISA. The growth-promoting effect of exosome-treated MSCs on lung tumor cells was evaluated by in vivo mouse xenograft model. Signaling pathway involved in exosomes-treated MSCs was detected by PCR array of human toll-like receptor signaling pathway, RT-PCR, and Western blot. Results Data showed that lung tumor cell A549-derived exosomes could induce a pro-inflammatory phenotype in MSCs named P-MSCs, which have significantly elevated secretion of IL-6, IL-8, and MCP-1. P-MSCs possess a greatly enhanced ability in promoting lung tumor growth in mouse xenograft model. Analysis of the signaling pathways in P-MSCs revealed a fast triggering of NF-κB. Genetic ablation of Toll-like receptor 2 (TLR2) by siRNA and TLR2-neutralizing antibody could block NF-κB activation by exosomes. We further found that Hsp70 present on the surface of lung tumor exosomes contributed to the induction of P-MSCs by A549 exosomes. Conclusions Our studies suggest a novel mechanism by which lung tumor cell-derived exosomes induce pro-inflammatory activity of MSCs which in turn get tumor supportive characteristics. Electronic supplementary material The online version of this article (doi:10.1186/s13045-016-0269-y) contains supplementary material, which is available to authorized users.
Collapse
Affiliation(s)
- Xiaoxia Li
- Center of Excellence in Tissue Engineering, Key Laboratory of Beijing, Institute of Basic Medical Sciences and School of Basic Medicine, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, People's Republic of China
| | - Shihua Wang
- Center of Excellence in Tissue Engineering, Key Laboratory of Beijing, Institute of Basic Medical Sciences and School of Basic Medicine, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, People's Republic of China
| | - Rongjia Zhu
- Center of Excellence in Tissue Engineering, Key Laboratory of Beijing, Institute of Basic Medical Sciences and School of Basic Medicine, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, People's Republic of China
| | - Hongling Li
- Center of Excellence in Tissue Engineering, Key Laboratory of Beijing, Institute of Basic Medical Sciences and School of Basic Medicine, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, People's Republic of China
| | - Qin Han
- Center of Excellence in Tissue Engineering, Key Laboratory of Beijing, Institute of Basic Medical Sciences and School of Basic Medicine, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, People's Republic of China.
| | - Robert Chunhua Zhao
- Center of Excellence in Tissue Engineering, Key Laboratory of Beijing, Institute of Basic Medical Sciences and School of Basic Medicine, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, People's Republic of China. .,Center of Translational medicine Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, People's Republic of China.
| |
Collapse
|
185
|
Xiao D, Barry S, Kmetz D, Egger M, Pan J, Rai SN, Qu J, McMasters KM, Hao H. Melanoma cell-derived exosomes promote epithelial-mesenchymal transition in primary melanocytes through paracrine/autocrine signaling in the tumor microenvironment. Cancer Lett 2016; 376:318-27. [PMID: 27063098 DOI: 10.1016/j.canlet.2016.03.050] [Citation(s) in RCA: 135] [Impact Index Per Article: 16.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2016] [Revised: 03/25/2016] [Accepted: 03/29/2016] [Indexed: 12/30/2022]
Abstract
The tumor microenvironment is abundant with exosomes that are secreted by the cancer cells themselves. Exosomes are nanosized, organelle-like membranous structures that are increasingly being recognized as major contributors in the progression of malignant neoplasms. A critical element in melanoma progression is its propensity to metastasize, but little is known about how melanoma cell-derived exosomes modulate the microenvironment to optimize conditions for tumor progression and metastasis. Here, we provide evidence that melanoma cell-derived exosomes promote phenotype switching in primary melanocytes through paracrine/autocrine signaling. We found that the mitogen-activated protein kinase (MAPK) signaling pathway was activated during the exosome-mediated epithelial-to-mesenchymal transition (EMT)-resembling process, which promotes metastasis. Let-7i, an miRNA modulator of EMT, was also involved in this process. We further defined two other miRNA modulators of EMT (miR-191 and let-7a) in serum exosomes for differentiating stage I melanoma patients from non-melanoma subjects. These results provide the first strong molecular evidence that melanoma cell-derived exosomes promote the EMT-resembling process in the tumor microenvironment. Thus, novel strategies targeting EMT and modulating the tumor microenvironment may emerge as important approaches for the treatment of metastatic melanoma.
Collapse
Affiliation(s)
- Deyi Xiao
- The Hiram C. Polk, Jr., MD Department of Surgery, University of Louisville School of Medicine, Kosair Charities Clinical & Translational Research Building, 505 S. Hancock St, Room 407, Louisville, KY 40292, USA
| | - Samantha Barry
- The Hiram C. Polk, Jr., MD Department of Surgery, University of Louisville School of Medicine, Kosair Charities Clinical & Translational Research Building, 505 S. Hancock St, Room 407, Louisville, KY 40292, USA
| | - Daniel Kmetz
- The Hiram C. Polk, Jr., MD Department of Surgery, University of Louisville School of Medicine, Kosair Charities Clinical & Translational Research Building, 505 S. Hancock St, Room 407, Louisville, KY 40292, USA
| | - Michael Egger
- The Hiram C. Polk, Jr., MD Department of Surgery, University of Louisville School of Medicine, Kosair Charities Clinical & Translational Research Building, 505 S. Hancock St, Room 407, Louisville, KY 40292, USA
| | - Jianmin Pan
- Biostatistics Shared Facility, James Graham Brown Cancer Center, University of Louisville School of Medicine, Louisville, KY 40292, USA
| | - Shesh N Rai
- Biostatistics Shared Facility, James Graham Brown Cancer Center, University of Louisville School of Medicine, Louisville, KY 40292, USA
| | - Jifu Qu
- The Hiram C. Polk, Jr., MD Department of Surgery, University of Louisville School of Medicine, Kosair Charities Clinical & Translational Research Building, 505 S. Hancock St, Room 407, Louisville, KY 40292, USA
| | - Kelly M McMasters
- The Hiram C. Polk, Jr., MD Department of Surgery, University of Louisville School of Medicine, Kosair Charities Clinical & Translational Research Building, 505 S. Hancock St, Room 407, Louisville, KY 40292, USA.
| | - Hongying Hao
- The Hiram C. Polk, Jr., MD Department of Surgery, University of Louisville School of Medicine, Kosair Charities Clinical & Translational Research Building, 505 S. Hancock St, Room 407, Louisville, KY 40292, USA.
| |
Collapse
|
186
|
Yang XZ, Li XX, Zhang YJ, Rodriguez-Rodriguez L, Xiang MQ, Wang HY, Zheng XFS. Rab1 in cell signaling, cancer and other diseases. Oncogene 2016; 35:5699-5704. [PMID: 27041585 PMCID: PMC5396462 DOI: 10.1038/onc.2016.81] [Citation(s) in RCA: 67] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2015] [Revised: 02/23/2016] [Accepted: 02/26/2016] [Indexed: 12/17/2022]
Abstract
The endoplasmic reticulum (ER) and Golgi membrane system have major roles in cell signaling and regulation of the biosynthesis/transport of proteins and lipids in response to environmental cues such as amino acid and cholesterol levels. Rab1 is the founding member of the Rab small GTPase family, which is known to mediate dynamic membrane trafficking between ER and Golgi. Growing evidence indicate that Rab1 proteins have important functions beyond their classical vesicular transport functions, including nutrient sensing and signaling, cell migration and presentation of cell-surface receptors. Moreover, deregulation of RAB1 expression has been linked to a myriad of human diseases such as cancer, cardiomyopathy and Parkinson's disease. Further investigating these new physiological and pathological functions of Rab1 should provide new opportunities for better understanding of the disease processes and may lead to more effective therapeutic interventions.
Collapse
Affiliation(s)
- X-Z Yang
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - X-X Li
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Y-J Zhang
- Rutgers Cancer Institute of New Jersey, Robert Wood Johnson Medical School, Rutgers, The State University of New Jersey, New Brunswick, NJ, USA.,Oncology Department, Shanghai Ninth People's Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - L Rodriguez-Rodriguez
- Rutgers Cancer Institute of New Jersey, Robert Wood Johnson Medical School, Rutgers, The State University of New Jersey, New Brunswick, NJ, USA.,Department of Medicine, Robert Wood Johnson Medical School, Rutgers, The State University of New Jersey, New Brunswick, NJ, USA
| | - M-Q Xiang
- Center for Advanced Biotechnology and Medicine, and Department of Pediatrics, Robert Wood Johnson Medical School, Rutgers, The State University of New Jersey, New Brunswick, NJ, USA.,State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, China
| | - H-Y Wang
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China.,Rutgers Cancer Institute of New Jersey, Robert Wood Johnson Medical School, Rutgers, The State University of New Jersey, New Brunswick, NJ, USA.,Department of Pharmacology, Robert Wood Johnson Medical School, Rutgers, The State University of New Jersey, New Brunswick, NJ, USA
| | - X F S Zheng
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China.,Rutgers Cancer Institute of New Jersey, Robert Wood Johnson Medical School, Rutgers, The State University of New Jersey, New Brunswick, NJ, USA.,Department of Pharmacology, Robert Wood Johnson Medical School, Rutgers, The State University of New Jersey, New Brunswick, NJ, USA
| |
Collapse
|
187
|
Abstract
Humans circulate quadrillions of exosomes at all times. Exosomes are a class of extracellular vesicles released by all cells, with a size range of 40-150 nm and a lipid bilayer membrane. Exosomes contain DNA, RNA, and proteins. Exosomes likely remove excess and/or unnecessary constituents from the cells, functioning like garbage bags, although their precise physiological role remains unknown. Additionally, exosomes may mediate specific cell-to-cell communication and activate signaling pathways in cells they fuse or interact with. Exosomes are detected in the tumor microenvironment, and emerging evidence suggests that they play a role in facilitating tumorigenesis by regulating angiogenesis, immunity, and metastasis. Circulating exosomes can be used as liquid biopsies and noninvasive biomarkers for early detection, diagnosis, and treatment of cancer patients.
Collapse
|
188
|
Abstract
Tumor-derived exosomes (TEX) are harbingers of tumor-induced immune suppression: they carry immunosuppressive molecules and factors known to interfere with immune cell functions. By delivering suppressive cargos consisting of proteins similar to those in parent tumor cells to immune cells, TEX directly or indirectly influence the development, maturation, and antitumor activities of immune cells. TEX also deliver genomic DNA, mRNA, and microRNAs to immune cells, thereby reprogramming functions of responder cells to promote tumor progression. TEX carrying tumor-associated antigens can interfere with antitumor immunotherapies. TEX also have the potential to serve as noninvasive biomarkers of tumor progression. In the tumor microenvironment, TEX may be involved in operating numerous signaling pathways responsible for the downregulation of antitumor immunity.
Collapse
|
189
|
D'Asti E, Chennakrishnaiah S, Lee TH, Rak J. Extracellular Vesicles in Brain Tumor Progression. Cell Mol Neurobiol 2016; 36:383-407. [PMID: 26993504 DOI: 10.1007/s10571-015-0296-1] [Citation(s) in RCA: 60] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2015] [Accepted: 10/24/2015] [Indexed: 12/18/2022]
Abstract
Brain tumors can be viewed as multicellular 'ecosystems' with increasingly recognized cellular complexity and systemic impact. While the emerging diversity of malignant disease entities affecting brain tissues is often described in reference to their signature alterations within the cellular genome and epigenome, arguably these cell-intrinsic changes can be regarded as hardwired adaptations to a variety of cell-extrinsic microenvironmental circumstances. Conversely, oncogenic events influence the microenvironment through their impact on the cellular secretome, including emission of membranous structures known as extracellular vesicles (EVs). EVs serve as unique carriers of bioactive lipids, secretable and non-secretable proteins, mRNA, non-coding RNA, and DNA and constitute pathway(s) of extracellular exit of molecules into the intercellular space, biofluids, and blood. EVs are also highly heterogeneous as reflected in their nomenclature (exosomes, microvesicles, microparticles) attempting to capture their diverse origin, as well as structural, molecular, and functional properties. While EVs may act as a mechanism of molecular expulsion, their non-random uptake by heterologous cellular recipients defines their unique roles in the intercellular communication, horizontal molecular transfer, and biological activity. In the central nervous system, EVs have been implicated as mediators of homeostasis and repair, while in cancer they may act as regulators of cell growth, clonogenicity, angiogenesis, thrombosis, and reciprocal tumor-stromal interactions. EVs produced by specific brain tumor cell types may contain the corresponding oncogenic drivers, such as epidermal growth factor receptor variant III (EGFRvIII) in glioblastoma (and hence are often referred to as 'oncosomes'). Through this mechanism, mutant oncoproteins and nucleic acids may be transferred horizontally between cellular populations altering their individual and collective phenotypes. Oncogenic pathways also impact the emission rates, types, cargo, and biogenesis of EVs, as reflected by preliminary analyses pointing to differences in profiles of EV-regulating genes (vesiculome) between molecular subtypes of glioblastoma, and in other brain tumors. Molecular regulators of vesiculation can also act as oncogenes. These intimate connections suggest the context-specific roles of different EV subsets in the progression of specific brain tumors. Advanced efforts are underway to capture these events through the use of EVs circulating in biofluids as biomarker reservoirs and to guide diagnostic and therapeutic decisions.
Collapse
Affiliation(s)
- Esterina D'Asti
- RI MUHC, Montreal Children's Hospital, McGill University, 1001 Decarie Blvd, E M1 2244, Montreal, QC, H4A 3J1, Canada
| | - Shilpa Chennakrishnaiah
- RI MUHC, Montreal Children's Hospital, McGill University, 1001 Decarie Blvd, E M1 2244, Montreal, QC, H4A 3J1, Canada
| | - Tae Hoon Lee
- RI MUHC, Montreal Children's Hospital, McGill University, 1001 Decarie Blvd, E M1 2244, Montreal, QC, H4A 3J1, Canada
| | - Janusz Rak
- RI MUHC, Montreal Children's Hospital, McGill University, 1001 Decarie Blvd, E M1 2244, Montreal, QC, H4A 3J1, Canada.
| |
Collapse
|
190
|
Fu H, Yang H, Zhang X, Xu W. The emerging roles of exosomes in tumor-stroma interaction. J Cancer Res Clin Oncol 2016; 142:1897-907. [PMID: 26987524 DOI: 10.1007/s00432-016-2145-0] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2016] [Accepted: 03/09/2016] [Indexed: 12/13/2022]
Abstract
PURPOSE The tumor-stroma interaction is critical for the development and progression of cancer. Cancer-associated fibroblasts (CAFs), one of the major components of the tumor stroma, can promote tumor growth and metastasis. Exosomes are secreted microvesicles that mediate cell-to-cell communication. Exosomal contents, including proteins, nucleic acids, and lipids, can be shuttled from donor cells to target cells. Recent studies suggest that exosomes play important roles in the tumor-stroma interaction. Herein, we review the multifaceted roles of exosomes in the tumor-stroma interaction and the underlying molecular mechanisms. METHODS Literature search for all relevant publications was performed on PubMed databases. The keywords of exosomes, tumor, stroma, CAFs, mesenchymal stem cells (MSCs) and other closely related terms were used for searching. RESULTS Tumor cell-derived exosomes induce the differentiation of fibroblasts and MSCs into CAFs. In turn, exosomes secreted by CAFs promote tumor growth, metastasis, and drug resistance through distinct mechanisms. Moreover, exosomes from stromal cells can be used as therapeutic vehicles for the delivery of anticancer drugs. CONCLUSIONS Tumor cells communicate with CAFs through exosomes, which establishes a bidirectional cross talk to promote tumor growth, metastasis, and drug resistance. Targeting exosomes in tumor-stroma interaction may have important implications for anticancer therapy.
Collapse
Affiliation(s)
- Hailong Fu
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, 301 Xuefu Road, Zhenjiang, 212013, Jiangsu, China
| | - Huan Yang
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, 301 Xuefu Road, Zhenjiang, 212013, Jiangsu, China.,Department of Clinical Laboratory, The Second Affiliated Hospital of Soochow University, 1055 Sanxiang Road, Suzhou, 215004, Jiangsu, China
| | - Xu Zhang
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, 301 Xuefu Road, Zhenjiang, 212013, Jiangsu, China.
| | - Wenrong Xu
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, 301 Xuefu Road, Zhenjiang, 212013, Jiangsu, China. .,The Affiliated Hospital, Jiangsu University, Zhenjiang, 212013, Jiangsu, China.
| |
Collapse
|
191
|
Abstract
Tumor-derived exosomes (TEX) are harbingers of tumor-induced immune suppression: they carry immunosuppressive molecules and factors known to interfere with immune cell functions. By delivering suppressive cargos consisting of proteins similar to those in parent tumor cells to immune cells, TEX directly or indirectly influence the development, maturation, and antitumor activities of immune cells. TEX also deliver genomic DNA, mRNA, and microRNAs to immune cells, thereby reprogramming functions of responder cells to promote tumor progression. TEX carrying tumor-associated antigens can interfere with antitumor immunotherapies. TEX also have the potential to serve as noninvasive biomarkers of tumor progression. In the tumor microenvironment, TEX may be involved in operating numerous signaling pathways responsible for the downregulation of antitumor immunity.
Collapse
|
192
|
Pancreatic cancer: Current research and future directions. Biochim Biophys Acta Rev Cancer 2016; 1865:123-32. [PMID: 26794394 DOI: 10.1016/j.bbcan.2016.01.001] [Citation(s) in RCA: 56] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2015] [Revised: 12/27/2015] [Accepted: 01/09/2016] [Indexed: 12/13/2022]
Abstract
Despite the survival rate advancements in different types of cancer in the last 40 years, the perspective for pancreatic cancer patients has seen no substantial changes. Indeed, the five year survival rate remains around 5%. Nevertheless, in the last decade we have witnessed an increased interest in pancreatic cancer biology and this has produced a substantial increment in our knowledge on pancreatic cancer progression. The big challenge is now to translate this knowledge in better outcomes for patients. The aim of this review is to describe the latest discoveries and advancements in pancreatic cancer research and to discuss future directions.
Collapse
|
193
|
Balolong E, Lee S, Nemeno JG, Lee JI. Are They Really Stem Cells? Scrutinizing the Identity of Cells and the Quality of Reporting in the Use of Adipose Tissue-Derived Stem Cells. Stem Cells Int 2015; 2016:2302430. [PMID: 26798353 PMCID: PMC4700199 DOI: 10.1155/2016/2302430] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2015] [Revised: 09/05/2015] [Accepted: 09/09/2015] [Indexed: 12/24/2022] Open
Abstract
There is an increasing concern that the term adipose tissue-derived stem cell (ASC) is inappropriately used to refer to the adipose stromal vascular fraction (SVF). To evaluate the accuracy and quality of reporting, 116 manuscripts on the application of ASC in humans and animals were examined based on the 2013 published International Federation for Adipose Therapeutics and Science (IFATS)/ International Society for Cellular Therapy (ISCT) joint statement and in reference to current guidelines for clinical trials and preclinical studies. It is disconcerting that 4 among the 47 papers or 8.51% (CI 2.37-20.38) surveyed after publication of IFATS/ISCT statement reported using ASCs but in fact they used unexpanded cells. 28/47 or 59.57% (CI 44.27-73.63) explicitly reported that adherent cells were used, 35/47 or 74.47% (CI 59.65-86.06) identified expression of surface markers, and 25/47 or 53.19% (CI 14.72-30.65) verified the multilineage potential of the cells. While there are a number of papers examined in this survey that were not able to provide adequate information on the characteristics of ASCs used with some erroneously referring to the SVF as stem cells, there are more room for improvement in the quality of reporting in the application of ASCs in humans and animals.
Collapse
Affiliation(s)
- Ernesto Balolong
- Regenerative Medicine Laboratory, Center for Stem Cell Research, Department of Biomedical Science and Technology, Institute of Biomedical Science and Technology, Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul 143-701, Republic of Korea
| | - Soojung Lee
- Regenerative Medicine Laboratory, Center for Stem Cell Research, Department of Biomedical Science and Technology, Institute of Biomedical Science and Technology, Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul 143-701, Republic of Korea
- Regeniks Co., Ltd., Seoul, Republic of Korea
| | - Judee Grace Nemeno
- Regenerative Medicine Laboratory, Center for Stem Cell Research, Department of Biomedical Science and Technology, Institute of Biomedical Science and Technology, Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul 143-701, Republic of Korea
| | - Jeong Ik Lee
- Regenerative Medicine Laboratory, Center for Stem Cell Research, Department of Biomedical Science and Technology, Institute of Biomedical Science and Technology, Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul 143-701, Republic of Korea
- Department of Veterinary Medicine, College of Veterinary Medicine, Konkuk University, Seoul 143-701, Republic of Korea
| |
Collapse
|
194
|
Extracellular Vesicles: Evolving Factors in Stem Cell Biology. Stem Cells Int 2015; 2016:1073140. [PMID: 26649044 PMCID: PMC4663346 DOI: 10.1155/2016/1073140] [Citation(s) in RCA: 166] [Impact Index Per Article: 18.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2015] [Revised: 07/09/2015] [Accepted: 07/16/2015] [Indexed: 12/18/2022] Open
Abstract
Stem cells are proposed to continuously secrete trophic factors that potentially serve as mediators of autocrine and paracrine activities, associated with reprogramming of the tumor microenvironment, tissue regeneration, and repair. Hitherto, significant efforts have been made to understand the level of underlying paracrine activities influenced by stem cell secreted trophic factors, as little is known about these interactions. Recent findings, however, elucidate this role by reporting the effects of stem cell derived extracellular vesicles (EVs) that mimic the phenotypes of the cells from which they originate. Exchange of genetic information utilizing persistent bidirectional communication mediated by stem cell-EVs could regulate stemness, self-renewal, and differentiation in stem cells and their subpopulations. This review therefore discusses stem cell-EVs as evolving communication factors in stem cell biology, focusing on how they regulate cell fates by inducing persistent and prolonged genetic reprogramming of resident cells in a paracrine fashion. In addition, we address the role of stem cell-secreted vesicles in shaping the tumor microenvironment and immunomodulation and in their ability to stimulate endogenous repair processes during tissue damage. Collectively, these functions ensure an enormous potential for future therapies.
Collapse
|
195
|
Yang Y, Jia D, Kim H, Abd Elmageed ZY, Datta A, Davis R, Srivastav S, Moroz K, Crawford BE, Moparty K, Thomas R, Hudson RS, Ambs S, Abdel-Mageed AB. Dysregulation of miR-212 Promotes Castration Resistance through hnRNPH1-Mediated Regulation of AR and AR-V7: Implications for Racial Disparity of Prostate Cancer. Clin Cancer Res 2015; 22:1744-56. [PMID: 26553749 DOI: 10.1158/1078-0432.ccr-15-1606] [Citation(s) in RCA: 64] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2015] [Accepted: 10/11/2015] [Indexed: 12/31/2022]
Abstract
PURPOSE The causes of disproportionate incidence and mortality of prostate cancer among African Americans (AA) remain elusive. The purpose of this study was to investigate the mechanistic role and assess clinical utility of the splicing factor heterogeneous nuclear ribonucleoprotein H1 (hnRNP H1) in prostate cancer progression among AA men. EXPERIMENTAL DESIGN We employed an unbiased functional genomics approach coupled with suppressive subtractive hybridization (SSH) and custom cDNA microarrays to identify differentially expressed genes in microdissected tumors procured from age- and tumor grade-matched AA and Caucasian American (CA) men. Validation analysis was performed in independent cohorts and tissue microarrays. The underlying mechanisms of hnRNPH1 regulation and its impact on androgen receptor (AR) expression and tumor progression were explored. RESULTS Aberrant coexpression of AR and hnRNPH1 and downregulation of miR-212 were detected in prostate tumors and correlate with disease progression in AA men compared with CA men. Ectopic expression of miR-212 mimics downregulated hnRNPH1 transcripts, which in turn reduced expression of AR and its splice variant AR-V7 (or AR3) in prostate cancer cells. hnRNPH1 physically interacts with AR and steroid receptor coactivator-3 (SRC-3) and primes activation of androgen-regulated genes in a ligand-dependent and independent manner. siRNA silencing of hnRNPH1 sensitized prostate cancer cells to bicalutamide and inhibited prostate tumorigenesis in vivo CONCLUSIONS Our findings define novel roles for hnRNPH1 as a putative oncogene, splicing factor, and an auxiliary AR coregulator. Targeted disruption of the hnRNPH1-AR axis may have therapeutic implications to improve clinical outcomes in patients with advanced prostate cancer, especially among AA men.
Collapse
Affiliation(s)
- Yijun Yang
- Department of Urology, Tulane University School of Medicine, New Orleans, Louisiana
| | - Dingwu Jia
- Department of Urology, Tulane University School of Medicine, New Orleans, Louisiana
| | - Hogyoung Kim
- Department of Urology, Tulane University School of Medicine, New Orleans, Louisiana
| | | | - Amrita Datta
- Department of Urology, Tulane University School of Medicine, New Orleans, Louisiana
| | - Rodney Davis
- Department of Urology, Tulane University School of Medicine, New Orleans, Louisiana
| | - Sudesh Srivastav
- Department of Biostatistics, Tulane University School of Public Health and Tropical Medicine, New Orleans, Louisiana
| | - Krzysztof Moroz
- Department of Pathology, Tulane University School of Medicine, New Orleans, Louisiana. Tulane Cancer Center, Tulane University School of Medicine, New Orleans, Louisiana
| | - Byron E Crawford
- Department of Pathology, Tulane University School of Medicine, New Orleans, Louisiana
| | - Krishnarao Moparty
- Department of Urology, Tulane University School of Medicine, New Orleans, Louisiana. Division of Urology, Southeast Louisiana Veterans Health Care System, New Orleans, Louisiana
| | - Raju Thomas
- Department of Urology, Tulane University School of Medicine, New Orleans, Louisiana. Tulane Cancer Center, Tulane University School of Medicine, New Orleans, Louisiana
| | - Robert S Hudson
- Laboratory of Human Carcinogenesis, National Cancer Institute, NIH, Bethesda, Maryland
| | - Stefan Ambs
- Laboratory of Human Carcinogenesis, National Cancer Institute, NIH, Bethesda, Maryland
| | - Asim B Abdel-Mageed
- Department of Urology, Tulane University School of Medicine, New Orleans, Louisiana. Tulane Cancer Center, Tulane University School of Medicine, New Orleans, Louisiana. Department of Pharmacology, Tulane University School of Medicine, New Orleans, Louisiana.
| |
Collapse
|
196
|
Meehan K, Vella LJ. The contribution of tumour-derived exosomes to the hallmarks of cancer. Crit Rev Clin Lab Sci 2015; 53:121-31. [PMID: 26479834 DOI: 10.3109/10408363.2015.1092496] [Citation(s) in RCA: 91] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Exosomes are small, biologically active extracellular vesicles and over the last decade, both stromal and tumour-derived exosomes (TDE) have been implicated in cancer onset, progression and metastases. Cancer is a complex disease that is underpinned by several "cancer hallmarks", originally described by Hanahan and Weinberg in 2000 and then revised in 2011. The hallmarks of cancer comprise six biological capabilities, along with two emerging hallmarks and two enabling characteristics that facilitate tumour growth and metastatic dissemination. Ample evidence supports a clear role for TDE in four of the original biological hallmarks (sustaining proliferative signalling, resisting cell death, inducing angiogenesis and activating invasion and metastases). A less-defined role exists for TDE in evading growth suppressors, and currently, there is no evidence to suggest a role for TDE in enabling replicative immortality. TDE are intimately involved in the newly defined hallmarks of cancer and enabling characteristics, most evidently in immune inhibition and tumour-promoting inflammation, which ultimately enable escape from immune destruction and tumour progression. Herein, we discuss the role of TDE in the context of the hallmarks and enabling characteristics of cancer as defined by Hanahan and Weinberg.
Collapse
Affiliation(s)
- Katie Meehan
- a School of Pathology and Laboratory Medicine, University of Western Australia , Crawley , Australia and
| | - Laura J Vella
- b Olivia Newton-John Cancer Research Institute, Level 5 Olivia Newton-John Cancer and Wellness Centre , Heidelberg , Australia
| |
Collapse
|
197
|
Strong AL, Burow ME, Gimble JM, Bunnell BA. Concise review: The obesity cancer paradigm: exploration of the interactions and crosstalk with adipose stem cells. Stem Cells 2015; 33:318-26. [PMID: 25267443 DOI: 10.1002/stem.1857] [Citation(s) in RCA: 66] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2014] [Revised: 07/28/2014] [Accepted: 08/06/2014] [Indexed: 01/04/2023]
Abstract
With the recognition of obesity as a global health crisis, researchers have devoted greater effort to defining and understanding the pathophysiological molecular pathways regulating the biology of adipose tissue and obesity. Obesity, the excessive accumulation of adipose tissue due to hyperplasia and hypertrophy, has been linked to an increased incidence and aggressiveness of colon, hematological, prostate, and postmenopausal breast cancers. The increased morbidity and mortality of obesity-associated cancers have been attributed to higher levels of hormones, adipokines, and cytokines secreted by the adipose tissue. The increased amount of adipose tissue also results in higher numbers of adipose stromal/stem cells (ASCs). These ASCs have been shown to impact cancer progression directly through several mechanisms, including the increased recruitment of ASCs to the tumor site and increased production of cytokines and growth factors by ASCs and other cells within the tumor stroma. Emerging evidence indicates that obesity induces alterations in the biologic properties of ASCs, subsequently leading to enhanced tumorigenesis and metastasis of cancer cells. This review will discuss the links between obesity and cancer tumor progression, including obesity-associated changes in adipose tissue, inflammation, adipokines, and chemokines. Novel topics will include a discussion of the contribution of ASCs to this complex system with an emphasis on their role in the tumor stroma. The reciprocal and circular feedback loop between obesity and ASCs as well as the mechanisms by which ASCs from obese patients alter the biology of cancer cells and enhance tumorigenesis will be discussed.
Collapse
Affiliation(s)
- Amy L Strong
- Center for Stem Cell Research and Regenerative Medicine
| | | | | | | |
Collapse
|
198
|
Fatima F, Nawaz M. Stem cell-derived exosomes: roles in stromal remodeling, tumor progression, and cancer immunotherapy. CHINESE JOURNAL OF CANCER 2015; 34:541-53. [PMID: 26369565 PMCID: PMC4593342 DOI: 10.1186/s40880-015-0051-5] [Citation(s) in RCA: 84] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/08/2015] [Accepted: 07/27/2015] [Indexed: 12/18/2022]
Abstract
Stem cells are known to maintain stemness at least in part through secreted factors that promote stem-like phenotypes in resident cells. Accumulating evidence has clarified that stem cells release nano-vesicles, known as exosomes, which may serve as mediators of cell-to-cell communication and may potentially transmit stem cell phenotypes to recipient cells, facilitating stem cell maintenance, differentiation, self-renewal, and repair. It has become apparent that stem cell-derived exosomes mediate interactions among stromal elements, promote genetic instability in recipient cells, and induce malignant transformation. This review will therefore discuss the potential of stem cell-derived exosomes in the context of stromal remodeling and their ability to generate cancer-initiating cells in a tumor niche by inducing morphologic and functional differentiation of fibroblasts into tumor-initiating fibroblasts. In addition, the immunosuppressive potential of stem cell-derived exosomes in cancer immunotherapy and their prospective applications in cell-free therapies in future translational medicine is discussed.
Collapse
Affiliation(s)
- Farah Fatima
- Department of Pathology and Forensic Medicine, Faculty of Medicine Ribeirao Preto, University of Sao Paulo, Av. Bandeirantes, 3900, Ribeirao Preto, Sao Paulo, Brazil. .,Department of Rheumatology and Inflammation Research, University of Gothenburg, 480, 40530, Gothenburg, Sweden.
| | - Muhammad Nawaz
- Department of Pathology and Forensic Medicine, Faculty of Medicine Ribeirao Preto, University of Sao Paulo, Av. Bandeirantes, 3900, Ribeirao Preto, Sao Paulo, Brazil. .,Department of Rheumatology and Inflammation Research, University of Gothenburg, 480, 40530, Gothenburg, Sweden.
| |
Collapse
|
199
|
Laurent LC, Abdel-Mageed AB, Adelson PD, Arango J, Balaj L, Breakefield X, Carlson E, Carter BS, Majem B, Chen CC, Cocucci E, Danielson K, Courtright A, Das S, Abd Elmageed ZY, Enderle D, Ezrin A, Ferrer M, Freedman J, Galas D, Gandhi R, Huentelman MJ, Van Keuren-Jensen K, Kalani Y, Kim Y, Krichevsky AM, Lai C, Lal-Nag M, Laurent CD, Leonardo T, Li F, Malenica I, Mondal D, Nejad P, Patel T, Raffai RL, Rubio R, Skog J, Spetzler R, Sun J, Tanriverdi K, Vickers K, Wang L, Wang Y, Wei Z, Weiner HL, Wong D, Yan IK, Yeri A, Gould S. Meeting report: discussions and preliminary findings on extracellular RNA measurement methods from laboratories in the NIH Extracellular RNA Communication Consortium. J Extracell Vesicles 2015; 4:26533. [PMID: 26320937 PMCID: PMC4553263 DOI: 10.3402/jev.v4.26533] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2014] [Revised: 04/17/2015] [Accepted: 05/03/2015] [Indexed: 01/14/2023] Open
Abstract
Extracellular RNAs (exRNAs) have been identified in all tested biofluids and have been associated with a variety of extracellular vesicles, ribonucleoprotein complexes and lipoprotein complexes. Much of the interest in exRNAs lies in the fact that they may serve as signalling molecules between cells, their potential to serve as biomarkers for prediction and diagnosis of disease and the possibility that exRNAs or the extracellular particles that carry them might be used for therapeutic purposes. Among the most significant bottlenecks to progress in this field is the lack of robust and standardized methods for collection and processing of biofluids, separation of different types of exRNA-containing particles and isolation and analysis of exRNAs. The Sample and Assay Standards Working Group of the Extracellular RNA Communication Consortium is a group of laboratories funded by the U.S. National Institutes of Health to develop such methods. In our first joint endeavour, we held a series of conference calls and in-person meetings to survey the methods used among our members, placed them in the context of the current literature and used our findings to identify areas in which the identification of robust methodologies would promote rapid advancements in the exRNA field.
Collapse
Affiliation(s)
- Louise C Laurent
- Division of Maternal Fetal Medicine, Department of Reproductive Medicine, University of California San Diego, San Diego, CA, USA.,Sanford Consortium for Regenerative Medicine, San Diego, CA, USA;
| | - Asim B Abdel-Mageed
- Department of Urology, Tulane University, School of Medicine, New Orleans, LA, USA
| | | | | | - Leonora Balaj
- Department of Neurology, Harvard Medical School, Massachusetts General Hospital, Boston, MA, USA.,Program in Neuroscience, Harvard Medical School, Massachusetts General Hospital, Boston, MA, USA
| | - Xandra Breakefield
- Department of Neurology, Harvard Medical School, Massachusetts General Hospital, Boston, MA, USA.,Program in Neuroscience, Harvard Medical School, Massachusetts General Hospital, Boston, MA, USA.,Department of Radiology, Harvard Medical School, Massachusetts General Hospital, Boston, MA, USA
| | - Elizabeth Carlson
- Neurogenomics Division, Translational Genomics Research Institute, Phoenix, AZ, USA
| | - Bob S Carter
- Center for Theoretical and Applied Neuro-Oncology, Division of Neurosurgery, University of California San Diego, San Diego, CA, USA
| | - Blanca Majem
- School of Dentistry, University of California, Los Angeles, CA, USA
| | - Clark C Chen
- Center for Theoretical and Applied Neuro-Oncology, Division of Neurosurgery, University of California San Diego, San Diego, CA, USA
| | - Emanuele Cocucci
- Program in Cellular and Molecular Medicine, Boston Children's Hospital, Boston, MA, USA
| | - Kirsty Danielson
- Cardiovascular Institute, Beth Israel Deaconess Medical Center, Boston, MA, USA
| | - Amanda Courtright
- Neurogenomics Division, Translational Genomics Research Institute, Phoenix, AZ, USA
| | - Saumya Das
- Cardiovascular Institute, Beth Israel Deaconess Medical Center, Boston, MA, USA
| | | | | | | | - Marc Ferrer
- Division of Preclinical Innovation, National Center for Advancing Translational Sciences (NCATS), National Institutes of Health, Bethesda, MD, USA
| | - Jane Freedman
- Department of Medicine, University of Massachusetts Medical School, Worcester, MA, USA
| | - David Galas
- Pacific Northwest Diabetes Research Institute, Seattle, WA, USA.,Luxembourg Centre for Systems Biomedicine, University of Luxembourg, Esch-sur-Alzette, Luxembourg
| | - Roopali Gandhi
- Department of Neurology, Center for Neurologic Diseases, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | | | | | | | - Yong Kim
- School of Dentistry, University of California, Los Angeles, CA, USA
| | - Anna M Krichevsky
- Department of Neurology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Charles Lai
- Department of Neurology, Harvard Medical School, Massachusetts General Hospital, Boston, MA, USA.,Program in Neuroscience, Harvard Medical School, Massachusetts General Hospital, Boston, MA, USA
| | - Madhu Lal-Nag
- Division of Preclinical Innovation, National Center for Advancing Translational Sciences (NCATS), National Institutes of Health, Bethesda, MD, USA
| | - Clara D Laurent
- Cardiovascular Institute, Beth Israel Deaconess Medical Center, Boston, MA, USA
| | - Trevor Leonardo
- Cardiovascular Institute, Beth Israel Deaconess Medical Center, Boston, MA, USA
| | - Feng Li
- School of Dentistry, University of California, Los Angeles, CA, USA
| | - Ivana Malenica
- Neurogenomics Division, Translational Genomics Research Institute, Phoenix, AZ, USA
| | - Debasis Mondal
- Department of Pharmacology, Tulane University School of Medicine, New Orleans, LA, USA
| | - Parham Nejad
- Department of Neurology, Center for Neurologic Diseases, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Tushar Patel
- Department of Transplantation, Mayo Clinic Florida, Jacksonville, FL, USA.,Department of Cancer Biology, Mayo Clinic Florida, Jacksonville, FL, USA
| | - Robert L Raffai
- Department of Surgery, University of California San Francisco, San Francisco, CA, USA.,Department of Veteran's Affairs, San Francisco, CA, USA
| | - Renee Rubio
- Center for Cancer Computational Biology, Dana Farber Cancer Institute, Boston, MA, USA
| | | | | | - Jie Sun
- School of Dentistry, University of California, Los Angeles, CA, USA
| | - Kahraman Tanriverdi
- Department of Medicine, University of Massachusetts Medical School, Worcester, MA, USA
| | - Kasey Vickers
- Department of Molecular Physiology and Biophysics, Vanderbilt University Medical Center, Nashville, TN, USA.,Division of Cardiovascular Medicine, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Liang Wang
- Department of Pathology, Medical College of Wisconsin, Milwaukee, WI, USA
| | - Yaoyu Wang
- Center for Cancer Computational Biology, Dana Farber Cancer Institute, Boston, MA, USA
| | - Zhiyun Wei
- Department of Neurology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Howard L Weiner
- Department of Neurology, Center for Neurologic Diseases, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - David Wong
- School of Dentistry, University of California, Los Angeles, CA, USA
| | - Irene K Yan
- Department of Cancer Biology, Mayo Clinic Florida, Jacksonville, FL, USA
| | - Ashish Yeri
- Neurogenomics Division, Translational Genomics Research Institute, Phoenix, AZ, USA
| | - Stephen Gould
- Department of Biological Chemistry, Johns Hopkins University, Baltimore, MD, USA
| |
Collapse
|
200
|
Quesenberry PJ, Aliotta J, Camussi G, Abdel-Mageed AB, Wen S, Goldberg L, Zhang HG, Tetta C, Franklin J, Coffey RJ, Danielson K, Subramanya V, Ghiran I, Das S, Chen CC, Pusic KM, Pusic AD, Chatterjee D, Kraig RP, Balaj L, Dooner M. Potential functional applications of extracellular vesicles: a report by the NIH Common Fund Extracellular RNA Communication Consortium. J Extracell Vesicles 2015; 4:27575. [PMID: 26320942 PMCID: PMC4553260 DOI: 10.3402/jev.v4.27575] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2015] [Revised: 07/15/2015] [Accepted: 07/24/2015] [Indexed: 12/13/2022] Open
Abstract
The NIH Extracellular RNA Communication Program's initiative on clinical utility of extracellular RNAs and therapeutic agents and developing scalable technologies is reviewed here. Background information and details of the projects are presented. The work has focused on modulation of target cell fate by extracellular vesicles (EVs) and RNA. Work on plant-derived vesicles is of intense interest, and non-mammalian sources of vesicles may represent a very promising source for different therapeutic approaches. Retro-viral-like particles are intriguing. Clearly, EVs share pathways with the assembly machinery of several other viruses, including human endogenous retrovirals (HERVs), and this convergence may explain the observation of viral-like particles containing viral proteins and nucleic acid in EVs. Dramatic effect on regeneration of damaged bone marrow, renal, pulmonary and cardiovascular tissue is demonstrated and discussed. These studies show restoration of injured cell function and the importance of heterogeneity of different vesicle populations. The potential for neural regeneration is explored, and the capacity to promote and reverse neoplasia by EV exposure is described. The tremendous clinical potential of EVs underlies many of these projects, and the importance of regulatory issues and the necessity of general manufacturing production (GMP) studies for eventual clinical trials are emphasized. Clinical trials are already being pursued and should expand dramatically in the near future.
Collapse
Affiliation(s)
- Peter J Quesenberry
- Department of Medicine, The Warren Alpert Medical School of Brown University, Providence, RI, USA;
| | - Jason Aliotta
- Department of Medicine, The Warren Alpert Medical School of Brown University, Providence, RI, USA
| | - Giovanni Camussi
- Department of Medical Sciences, University of Turin, Torino, Italy
| | - Asim B Abdel-Mageed
- Department of Urology, Tulane University School of Medicine, New Orleans, LA, USA
- Tulane Cancer Center, Tulane University School of Medicine, New Orleans, LA, USA
| | - Sicheng Wen
- Department of Medicine, The Warren Alpert Medical School of Brown University, Providence, RI, USA
| | - Laura Goldberg
- Department of Medicine, The Warren Alpert Medical School of Brown University, Providence, RI, USA
| | - Huang-Ge Zhang
- Department of Microbiology and Immunology, University of Louisville, Louisville, KY, USA
| | - Ciro Tetta
- Department of Medical Sciences, University of Turin, Torino, Italy
| | - Jeffrey Franklin
- Department of Molecular Biology, Vanderbilt University, Nashville, TN, USA
| | - Robert J Coffey
- Department of Molecular Biology, Vanderbilt University, Nashville, TN, USA
| | - Kirsty Danielson
- Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
| | - Vinita Subramanya
- Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
| | - Ionita Ghiran
- Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
| | - Saumya Das
- Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
| | - Clark C Chen
- Department of Surgery, Center for Theoretical and Applied Neuro-Oncology, University of California, San Diego, CA, USA
| | - Kae M Pusic
- Department of Neurology, University of Chicago, Chicago, IL, USA
| | - Aya D Pusic
- Department of Neurology, University of Chicago, Chicago, IL, USA
| | - Devasis Chatterjee
- Department of Medicine, The Warren Alpert Medical School of Brown University, Providence, RI, USA
| | - Richard P Kraig
- Department of Neurology, University of Chicago, Chicago, IL, USA
| | - Leonora Balaj
- Department of Neurology, Massachusetts General Hospital and Harvard Medical School, Charlestown, MA, USA
| | - Mark Dooner
- Department of Medicine, The Warren Alpert Medical School of Brown University, Providence, RI, USA
| |
Collapse
|