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Wu L, van Heugten MH, van den Bosch TPP, Duimel H, López-Iglesias C, Hesselink DA, Baan CC, Boer K. Polarized HLA Class I Expression on Renal Tubules Hinders the Detection of Donor-Specific Urinary Extracellular Vesicles. Int J Nanomedicine 2024; 19:3497-3511. [PMID: 38628433 PMCID: PMC11020244 DOI: 10.2147/ijn.s446525] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Accepted: 03/27/2024] [Indexed: 04/19/2024] Open
Abstract
Purpose Kidney transplantation is the optimal treatment for patients with end-stage kidney disease. Donor-specific urinary extracellular vesicles (uEVs) hold potential as biomarkers for assessing allograft status. We aimed to develop a method for identifying donor-specific uEVs based on human leukocyte antigen (HLA) mismatching with the kidney transplant recipients (KTRs). Patients and Methods Urine and plasma were obtained from HLA-A2+ donors and HLA-A2- KTRs pre-transplant. CD9 (tetraspanin, EV marker) and HLA-A2 double-positive (CD9+ HLA-A2+) EVs were quantified using isolation-free imaging flow cytometry (IFCM). Healthy individuals' urine was used to investigate CD9+ HLA-class-I+ uEV quantification using IFCM, time-resolved fluoroimmunoassay (TR-FIA), and immunogold staining cryo-electron microscopy (cryo-EM). Culture-derived CD9+ HLA-class-I+ EVs were spiked into the urine to investigate urine matrix effects on uEV HLA detection. Deceased donor kidneys and peritumoral kidney tissue were used for HLA class I detection with histochemistry. Results The concentrations of CD9+ HLA-A2+ EVs in both donor and recipient urine approached the negative (detergent-treated) control levels for IFCM and were significantly lower than those observed in donor plasma. In parallel, universal HLA class I+ uEVs were similarly undetectable in the urine and uEV isolates compared with plasma, as verified by IFCM, TR-FIA, and cryogenic electron microscopy. Culture supernatant containing HLA class I+ vesicles from B, T, and human proximal tubule cells were spiked into the urine, and these EVs remained stable at 37°C for 8 hours. Immunohistochemistry revealed that HLA class I was predominantly expressed on the basolateral side of renal tubules, with limited expression on their urine/apical side. Conclusion The detection of donor-specific uEVs is hindered by the limited release of HLA class I+ EVs from the kidney into the urine, primarily due to the polarized HLA class I expression on renal tubules. Identifying donor-specific uEVs requires further advancements in recognizing transplant-specific uEVs and urine-associated markers.
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Affiliation(s)
- Liang Wu
- Department of Nephrology, the First Affiliated Hospital of Shaoyang University, Shaoyang, Hunan, People’s Republic of China
- Erasmus MC Transplant Institute, University Medical Center Rotterdam, Department of Internal Medicine, Division of Nephrology and Transplantation, Rotterdam, the Netherlands
| | - Martijn H van Heugten
- University Medical Center Rotterdam, Department of Internal Medicine, Division of Nephrology and Transplantation, Rotterdam, the Netherlands
| | | | - Hans Duimel
- The Microscopy CORE Laboratory at the Faculty of Health, Medicine and Life Sciences, Maastricht University, Maastricht, the Netherlands
| | - Carmen López-Iglesias
- The Microscopy CORE Laboratory at the Faculty of Health, Medicine and Life Sciences, Maastricht University, Maastricht, the Netherlands
| | - Dennis A Hesselink
- Erasmus MC Transplant Institute, University Medical Center Rotterdam, Department of Internal Medicine, Division of Nephrology and Transplantation, Rotterdam, the Netherlands
| | - Carla C Baan
- Erasmus MC Transplant Institute, University Medical Center Rotterdam, Department of Internal Medicine, Division of Nephrology and Transplantation, Rotterdam, the Netherlands
| | - Karin Boer
- Erasmus MC Transplant Institute, University Medical Center Rotterdam, Department of Internal Medicine, Division of Nephrology and Transplantation, Rotterdam, the Netherlands
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Wang X, Kim CS, Adams BC, Wilkinson R, Hill MM, Shah AK, Mohamed A, Dutt M, Ng MSY, Ungerer JPJ, Healy HG, Kassianos AJ. Human proximal tubular epithelial cell-derived small extracellular vesicles mediate synchronized tubular ferroptosis in hypoxic kidney injury. Redox Biol 2024; 70:103042. [PMID: 38244399 PMCID: PMC10831315 DOI: 10.1016/j.redox.2024.103042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2023] [Accepted: 01/12/2024] [Indexed: 01/22/2024] Open
Abstract
Hypoxia is the key pathobiological trigger of tubular oxidative stress and cell death that drives the transition of acute kidney injury (AKI) to chronic kidney disease (CKD). The mitochondrial-rich proximal tubular epithelial cells (PTEC) are uniquely sensitive to hypoxia and thus, are pivotal in propagating the sustained tubular loss of AKI-to-CKD transition. Here, we examined the role of PTEC-derived small extracellular vesicles (sEV) in propagating the 'wave of tubular death'. Ex vivo patient-derived PTEC were cultured under normoxia (21 % O2) and hypoxia (1 % O2) on Transwell inserts for isolation and analysis of sEV secreted from apical versus basolateral PTEC surfaces. Increased numbers of sEV were secreted from the apical surface of hypoxic PTEC compared with normoxic PTEC. No differences in basolateral sEV numbers were observed between culture conditions. Biological pathway analysis of hypoxic-apical sEV cargo identified distinct miRNAs linked with cellular injury pathways. In functional assays, hypoxic-apical sEV selectively induced ferroptotic cell death (↓glutathione peroxidase-4, ↑lipid peroxidation) in autologous PTEC compared with normoxic-apical sEV. The addition of ferroptosis inhibitors, ferrostatin-1 and baicalein, attenuated PTEC ferroptosis. RNAse A pretreatment of hypoxic-apical sEV also abrogated PTEC ferroptosis, demonstrating a role for sEV RNA in ferroptotic 'wave of death' signalling. In line with these in vitro findings, in situ immunolabelling of diagnostic kidney biopsies from AKI patients with clinical progression to CKD (AKI-to-CKD transition) showed evidence of ferroptosis propagation (increased numbers of ACSL4+ PTEC), while urine-derived sEV (usEV) from these 'AKI-to-CKD transition' patients triggered PTEC ferroptosis (↑lipid peroxidation) in functional studies. Our data establish PTEC-derived apical sEV and their intravesicular RNA as mediators of tubular lipid peroxidation and ferroptosis in hypoxic kidney injury. This concept of how tubular pathology is propagated from the initiating insult into a 'wave of death' provides novel therapeutic check-points for targeting AKI-to-CKD transition.
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Affiliation(s)
- Xiangju Wang
- Conjoint Internal Medicine Laboratory, Chemical Pathology, Pathology Queensland, Brisbane, Queensland, Australia; Kidney Health Service, Royal Brisbane and Women's Hospital, Brisbane, Queensland, Australia
| | - Chang Seong Kim
- Conjoint Internal Medicine Laboratory, Chemical Pathology, Pathology Queensland, Brisbane, Queensland, Australia; Kidney Health Service, Royal Brisbane and Women's Hospital, Brisbane, Queensland, Australia; Department of Internal Medicine, Chonnam National University Hospital, Gwangju, Republic of Korea; Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Republic of Korea
| | - Benjamin C Adams
- Conjoint Internal Medicine Laboratory, Chemical Pathology, Pathology Queensland, Brisbane, Queensland, Australia; Kidney Health Service, Royal Brisbane and Women's Hospital, Brisbane, Queensland, Australia; Faculty of Medicine, University of Queensland, Brisbane, Queensland, Australia
| | - Ray Wilkinson
- Conjoint Internal Medicine Laboratory, Chemical Pathology, Pathology Queensland, Brisbane, Queensland, Australia; Kidney Health Service, Royal Brisbane and Women's Hospital, Brisbane, Queensland, Australia; Faculty of Medicine, University of Queensland, Brisbane, Queensland, Australia; Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, Queensland, Australia
| | - Michelle M Hill
- QIMR Berghofer Medical Research Institute, Brisbane, Queensland, Australia
| | - Alok K Shah
- QIMR Berghofer Medical Research Institute, Brisbane, Queensland, Australia
| | - Ahmed Mohamed
- QIMR Berghofer Medical Research Institute, Brisbane, Queensland, Australia
| | - Mriga Dutt
- QIMR Berghofer Medical Research Institute, Brisbane, Queensland, Australia
| | - Monica S Y Ng
- Conjoint Internal Medicine Laboratory, Chemical Pathology, Pathology Queensland, Brisbane, Queensland, Australia; Kidney Health Service, Royal Brisbane and Women's Hospital, Brisbane, Queensland, Australia; Faculty of Medicine, University of Queensland, Brisbane, Queensland, Australia
| | - Jacobus P J Ungerer
- Conjoint Internal Medicine Laboratory, Chemical Pathology, Pathology Queensland, Brisbane, Queensland, Australia; Faculty of Medicine, University of Queensland, Brisbane, Queensland, Australia
| | - Helen G Healy
- Conjoint Internal Medicine Laboratory, Chemical Pathology, Pathology Queensland, Brisbane, Queensland, Australia; Kidney Health Service, Royal Brisbane and Women's Hospital, Brisbane, Queensland, Australia; Faculty of Medicine, University of Queensland, Brisbane, Queensland, Australia
| | - Andrew J Kassianos
- Conjoint Internal Medicine Laboratory, Chemical Pathology, Pathology Queensland, Brisbane, Queensland, Australia; Kidney Health Service, Royal Brisbane and Women's Hospital, Brisbane, Queensland, Australia; Faculty of Medicine, University of Queensland, Brisbane, Queensland, Australia; Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, Queensland, Australia.
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3
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Lundy DJ, Szomolay B, Liao CT. Systems Approaches to Cell Culture-Derived Extracellular Vesicles for Acute Kidney Injury Therapy: Prospects and Challenges. FUNCTION 2024; 5:zqae012. [PMID: 38706963 PMCID: PMC11065115 DOI: 10.1093/function/zqae012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2024] [Revised: 03/02/2024] [Accepted: 03/05/2024] [Indexed: 05/07/2024] Open
Abstract
Acute kidney injury (AKI) is a heterogeneous syndrome, comprising diverse etiologies of kidney insults that result in high mortality and morbidity if not well managed. Although great efforts have been made to investigate underlying pathogenic mechanisms of AKI, there are limited therapeutic strategies available. Extracellular vesicles (EV) are membrane-bound vesicles secreted by various cell types, which can serve as cell-free therapy through transfer of bioactive molecules. In this review, we first overview the AKI syndrome and EV biology, with a particular focus on the technical aspects and therapeutic application of cell culture-derived EVs. Second, we illustrate how multi-omic approaches to EV miRNA, protein, and genomic cargo analysis can yield new insights into their mechanisms of action and address unresolved questions in the field. We then summarize major experimental evidence regarding the therapeutic potential of EVs in AKI, which we subdivide into stem cell and non-stem cell-derived EVs. Finally, we highlight the challenges and opportunities related to the clinical translation of animal studies into human patients.
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Affiliation(s)
- David J Lundy
- Graduate Institute of Biomedical Materials & Tissue Engineering, Taipei Medical University, Taipei 235603, Taiwan
- International PhD Program in Biomedical Engineering, Taipei Medical University, Taipei 235603, Taiwan
- Center for Cell Therapy, Taipei Medical University Hospital, Taipei 110301, Taiwan
| | - Barbara Szomolay
- Systems Immunity Research Institute, Cardiff University School of Medicine, Cardiff CF14 4XN, UK
- Division of Infection and Immunity, Cardiff University School of Medicine, Cardiff CF14 4XN, UK
| | - Chia-Te Liao
- Division of Nephrology, Department of Internal Medicine, Shuang Ho Hospital, Taipei Medical University, New Taipei City 23561, Taiwan
- Division of Nephrology, Department of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei 110, Taiwan
- Research Center of Urology and Kidney, Taipei Medical University, Taipei 110, Taiwan
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4
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Kim Y, Kang D, Choi GE, Kim SD, Yang SJ, Kim H, You D, Kim CS, Suh N. Therapeutic potential of BMSC-conditioned medium in an in vitro model of renal fibrosis using the RPTEC/TERT1 cell line. BMB Rep 2024; 57:116-121. [PMID: 38303564 PMCID: PMC10910087] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2023] [Revised: 12/27/2023] [Accepted: 01/15/2024] [Indexed: 02/03/2024] Open
Abstract
We investigated the therapeutic potential of bone marrow-derived mesenchymal stem cell-conditioned medium (BMSC-CM) on immortalized renal proximal tubule epithelial cells (RPTEC/ TERT1) in a fibrotic environment. To replicate the increased stiffness characteristic of kidneys in chronic kidney disease, we utilized polyacrylamide gel platforms. A stiff matrix was shown to increase α-smooth muscle actin (α-SMA) levels, indicating fibrogenic activation in RPTEC/TERT1 cells. Interestingly, treatment with BMSC-CM resulted in significant reductions in the levels of fibrotic markers (α-SMA and vimentin) and increases in the levels of the epithelial marker E-cadherin and aquaporin 7, particularly under stiff conditions. Furthermore, BMSC-CM modified microRNA (miRNA) expression and reduced oxidative stress levels in these cells. Our findings suggest that BMSC-CM can modulate cellular morphology, miRNA expression, and oxidative stress in RPTEC/TERT1 cells, highlighting its therapeutic potential in fibrotic kidney disease. [BMB Reports 2024; 57(2): 116-121].
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Affiliation(s)
- Yunji Kim
- Department of Medical Sciences, General Graduate School, Soonchunhyang University, Asan 31538, Korea
| | - Dayeon Kang
- Department of Medical Sciences, General Graduate School, Soonchunhyang University, Asan 31538, Korea
- Department of Pharmaceutical Engineering, College of Medical Sciences, Soonchunhyang University, Asan 31538, Korea
| | - Ga-eun Choi
- Department of Medical Sciences, General Graduate School, Soonchunhyang University, Asan 31538, Korea
| | - Sang Dae Kim
- Department of Medical Sciences, General Graduate School, Soonchunhyang University, Asan 31538, Korea
| | | | - Hyosang Kim
- Division of Nephrology, Department of Internal Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul 05505, Korea
| | - Dalsan You
- Department of Urology, Asan Medical Institute of Convergence Science and Technology, Asan Medical Center, University of Ulsan College of Medicine, Seoul 05505, Korea
| | - Choung Soo Kim
- Urology Institute, Ewha Womans University Mokdong Hospital, Seoul 07985, Korea
| | - Nayoung Suh
- Department of Medical Sciences, General Graduate School, Soonchunhyang University, Asan 31538, Korea
- Department of Pharmaceutical Engineering, College of Medical Sciences, Soonchunhyang University, Asan 31538, Korea
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5
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Hernandez BJ, Skiba NP, Plössl K, Strain M, Liu Y, Grigsby D, Kelly U, Cady MA, Manocha V, Maminishkis A, Watkins T, Miller SS, Ashley‐Koch A, Stamer WD, Weber BHF, Bowes Rickman C, Klingeborn M. Polarized Desmosome and Hemidesmosome Shedding via Small Extracellular Vesicles is an Early Indicator of Outer Blood-Retina Barrier Dysfunction. JOURNAL OF EXTRACELLULAR BIOLOGY 2023; 2:e116. [PMID: 38108061 PMCID: PMC10720597 DOI: 10.1002/jex2.116] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Revised: 08/30/2023] [Accepted: 09/11/2023] [Indexed: 12/19/2023]
Abstract
The retinal pigmented epithelium (RPE) constitutes the outer blood-retinal barrier, enables photoreceptor function of the eye, and is constantly exposed to oxidative stress. As such, dysfunction of the RPE underlies pathology leading to development of age-related macular degeneration (AMD), the leading cause of vision loss among the elderly in industrialized nations. A major responsibility of the RPE is to process photoreceptor outer segments, which relies on the proper functioning of its endocytic pathways and endosomal trafficking. Exosomes and other extracellular vesicles (EVs) from RPE are an essential part of these pathways and may be early indicators of cellular stress. To test the role of small EVs (sEVs) including exosomes, that may underlie the early stages of AMD, we used a polarized primary RPE cell culture model under chronic subtoxic oxidative stress. Unbiased proteomic analyses of highly purified basolateral sEVs from oxidatively stressed RPE cultures revealed changes in proteins involved in epithelial barrier integrity. There were also significant changes in proteins accumulating in the basal-side sub-RPE extracellular matrix during oxidative stress, that could be prevented with an inhibitor of sEV release. Thus, chronic subtoxic oxidative stress in primary RPE cultures induces changes in sEV content, including basal-side specific desmosome and hemidesmosome shedding via sEVs. These findings provide novel biomarkers of early cellular dysfunction and opportunity for therapeutic intervention in age-related retinal diseases (e.g., AMD).
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Affiliation(s)
- Belinda J. Hernandez
- Department of Ophthalmology, Duke Eye CenterDuke UniversityDurhamNorth CarolinaUSA
| | - Nikolai P. Skiba
- Department of Ophthalmology, Duke Eye CenterDuke UniversityDurhamNorth CarolinaUSA
| | - Karolina Plössl
- Institute of Human GeneticsUniversity of RegensburgRegensburgGermany
| | - Madison Strain
- Duke Molecular Physiology Institute, Department of MedicineDuke UniversityDurhamNorth CarolinaUSA
| | - Yutao Liu
- Department of Cellular Biology and AnatomyAugusta UniversityAugustaGeorgiaUSA
| | - Daniel Grigsby
- Department of Ophthalmology, Duke Eye CenterDuke UniversityDurhamNorth CarolinaUSA
| | - Una Kelly
- Department of Ophthalmology, Duke Eye CenterDuke UniversityDurhamNorth CarolinaUSA
| | - Martha A. Cady
- Department of Ophthalmology, Duke Eye CenterDuke UniversityDurhamNorth CarolinaUSA
| | - Vikram Manocha
- Department of Ophthalmology, Duke Eye CenterDuke UniversityDurhamNorth CarolinaUSA
| | - Arvydas Maminishkis
- Ophthalmic Genetics and Visual Function Branch, Section on Epithelial and Retinal Physiology and DiseaseNational Eye Institute, National Institutes of HealthBethesdaMarylandUSA
| | - TeddiJo Watkins
- Department of Ophthalmology, Duke Eye CenterDuke UniversityDurhamNorth CarolinaUSA
- Office of Animal Welfare Assurance, Duke Animal Care and Use ProgramDuke UniversityDurhamNorth CarolinaUSA
| | - Sheldon S. Miller
- Ophthalmic Genetics and Visual Function Branch, Section on Epithelial and Retinal Physiology and DiseaseNational Eye Institute, National Institutes of HealthBethesdaMarylandUSA
| | - Allison Ashley‐Koch
- Duke Molecular Physiology Institute, Department of MedicineDuke UniversityDurhamNorth CarolinaUSA
| | - W. Daniel Stamer
- Department of Ophthalmology, Duke Eye CenterDuke UniversityDurhamNorth CarolinaUSA
- Department of Biomedical EngineeringDuke UniversityDurhamNorth CarolinaUSA
| | - Bernhard H. F. Weber
- Institute of Human GeneticsUniversity of RegensburgRegensburgGermany
- Institute of Clinical Human GeneticsUniversity Hospital RegensburgRegensburgGermany
| | - Catherine Bowes Rickman
- Department of Ophthalmology, Duke Eye CenterDuke UniversityDurhamNorth CarolinaUSA
- Department of Cell BiologyDuke UniversityDurhamNorth CarolinaUSA
| | - Mikael Klingeborn
- Department of Ophthalmology, Duke Eye CenterDuke UniversityDurhamNorth CarolinaUSA
- McLaughlin Research InstituteGreat FallsMontanaUSA
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Alli AA. Extracellular Vesicles: Investigating the Pathophysiology of Diabetes-Associated Hypertension and Diabetic Nephropathy. BIOLOGY 2023; 12:1138. [PMID: 37627022 PMCID: PMC10452642 DOI: 10.3390/biology12081138] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Revised: 08/03/2023] [Accepted: 08/10/2023] [Indexed: 08/27/2023]
Abstract
Extracellular vesicles (EVs) include exosomes, microvesicles, and apoptotic bodies. EVs are released by all cell types and are found in biological fluids including plasma and urine. Urinary extracellular vesicles (uEVs) are a mixed population of EVs that comprise small EVs that are filtered and excreted, EVs secreted by tubular epithelial cells, and EVs released from the bladder, urethra, and prostate. The packaged cargo within uEVs includes bioactive molecules such as metabolites, lipids, proteins, mRNAs, and miRNAs. These molecules are involved in intercellular communication, elicit changes in intracellular signaling pathways, and play a role in the pathogenesis of various diseases including diabetes-associated hypertension and diabetic nephropathy. uEVs represent a rich source of biomarkers, prognosis markers, and can be loaded with small-molecule drugs as a vehicle for delivery.
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Affiliation(s)
- Abdel A. Alli
- Department of Physiology and Aging, College of Medicine, University of Florida, Gainesville, FL 32610, USA; ; Tel.: +1-352-273-7877
- Department of Medicine, Division of Nephrology, Hypertension, and Renal Transplantation, University of Florida, Gainesville, FL 32610, USA
- Department of Pediatrics, College of Medicine, University of Florida, Gainesville, FL 32610, USA
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7
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Baer PC, Neuhoff AK, Schubert R. microRNA Expression of Renal Proximal Tubular Epithelial Cells and Their Extracellular Vesicles in an Inflammatory Microenvironment In Vitro. Int J Mol Sci 2023; 24:11069. [PMID: 37446246 DOI: 10.3390/ijms241311069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Revised: 06/29/2023] [Accepted: 07/03/2023] [Indexed: 07/15/2023] Open
Abstract
Renal proximal tubular epithelial cells (PTCs) are central players during renal inflammation. In response to inflammatory signals, PTCs not only self-express altered mRNAs, microRNAs (miRNAs), proteins, and lipids, but also release altered extracellular vesicles (EVs). These EVs also carry inflammation-specific cargo molecules and are key players in cell-cell-communication. Understanding the precise molecular and cellular mechanisms that lead to inflammation in the kidney is the most important way to identify early targets for the prevention or treatment of acute kidney injury. Therefore, highly purified human PTCs were used as an in vitro model to study the cellular response to an inflammatory microenvironment. A cytokine-induced inflammatory system was established to analyze different miRNA expression in cells and their EVs. In detail, we characterized the altered miR expression of PTCs and their released EVs during induced inflammation and showed that 12 miRNAs were significantly regulated in PTCs (6 upregulated and 6 downregulated) and 9 miRNAs in EVs (8 upregulated and 1 downregulated). We also showed that only three of the miRNAs were found to overlap between cells and EVs. As shown by the KEGG pathway analysis, these three miRNAs (miR-146a-5p, miR-147b, and miR-155-5p) are functionally involved in the regulation of the Toll-like receptor signaling pathway and significantly correlated with the inflammatory mediators IL6 and ICAM1 released by stimulated PTCs. Especially with regard to a possible clinical use of miRs as new biomarkers, an accurate characterization of the miR expression altered during inflammatory processes is of enormous importance.
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Affiliation(s)
- Patrick C Baer
- Department of Internal Medicine 4, Nephrology, University Hospital, Goethe-University, 60596 Frankfurt/M., Germany
| | - Ann-Kathrin Neuhoff
- Division of Allergology, Pneumology and Cystic Fibrosis, Department for Children and Adolescents, University Hospital, Goethe-University, 60596 Frankfurt/M., Germany
| | - Ralf Schubert
- Division of Allergology, Pneumology and Cystic Fibrosis, Department for Children and Adolescents, University Hospital, Goethe-University, 60596 Frankfurt/M., Germany
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8
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Echesabal-Chen J, Huang K, Vojtech L, Oladosu O, Esobi I, Sachdeva R, Vyavahare N, Jo H, Stamatikos A. Constructing Lipoparticles Capable of Endothelial Cell-Derived Exosome-Mediated Delivery of Anti-miR-33a-5p to Cultured Macrophages. Curr Issues Mol Biol 2023; 45:5631-5644. [PMID: 37504271 PMCID: PMC10378689 DOI: 10.3390/cimb45070355] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Revised: 06/26/2023] [Accepted: 07/01/2023] [Indexed: 07/29/2023] Open
Abstract
Atherosclerosis is driven by intimal arterial macrophages accumulating cholesterol. Atherosclerosis also predominantly occurs in areas consisting of proinflammatory arterial endothelial cells. At time of writing, there are no available clinical treatments that precisely remove excess cholesterol from lipid-laden intimal arterial macrophages. Delivery of anti-miR-33a-5p to macrophages has been shown to increase apoAI-mediated cholesterol efflux via ABCA1 upregulation but delivering transgenes to intimal arterial macrophages is challenging due to endothelial cell barrier integrity. In this study, we aimed to test whether lipoparticles targeting proinflammatory endothelial cells can participate in endothelial cell-derived exosome exploitation to facilitate exosome-mediated transgene delivery to macrophages. We constructed lipoparticles that precisely target the proinflammatory endothelium and contain a plasmid that expresses XMOTIF-tagged anti-miR-33a-5p (LP-pXMoAntimiR33a5p), as XMOTIF-tagged small RNA demonstrates the capacity to be selectively shuttled into exosomes. The cultured cells used in our study were immortalized mouse aortic endothelial cells (iMAECs) and RAW 264.7 macrophages. From our results, we observed a significant decrease in miR-33a-5p expression in macrophages treated with exosomes released basolaterally by LPS-challenged iMAECs incubated with LP-pXMoAntimiR33a5p when compared to control macrophages. This decrease in miR-33a-5p expression in the treated macrophages caused ABCA1 upregulation as determined by a significant increase in ABCA1 protein expression in the treated macrophages when compared to the macrophage control group. The increase in ABCA1 protein also simulated ABCA1-dependent cholesterol efflux in treated macrophages-as we observed a significant increase in apoAI-mediated cholesterol efflux-when compared to the control group of macrophages. Based on these findings, strategies that involve combining proinflammatory-targeting lipoparticles and exploitation of endothelial cell-derived exosomes appear to be promising approaches for delivering atheroprotective transgenes to lipid-laden arterial intimal macrophages.
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Affiliation(s)
- Jing Echesabal-Chen
- Department of Food, Nutrition and Packaging Sciences, Clemson University, Clemson, SC 29634, USA
| | - Kun Huang
- Department of Food, Nutrition and Packaging Sciences, Clemson University, Clemson, SC 29634, USA
| | - Lucia Vojtech
- Department of Obstetrics & Gynecology, University of Washington, Seattle, WA 98109, USA
| | - Olanrewaju Oladosu
- Department of Food, Nutrition and Packaging Sciences, Clemson University, Clemson, SC 29634, USA
| | - Ikechukwu Esobi
- Department of Food, Nutrition and Packaging Sciences, Clemson University, Clemson, SC 29634, USA
| | - Rakesh Sachdeva
- Department of Chemistry, Clemson University, Clemson, SC 29634, USA
| | - Naren Vyavahare
- Department of Bioengineering, Clemson University, Clemson, SC 29634, USA
| | - Hanjoong Jo
- Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, GA 30322, USA
| | - Alexis Stamatikos
- Department of Food, Nutrition and Packaging Sciences, Clemson University, Clemson, SC 29634, USA
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Heterogeneity of Extracellular Vesicles and Particles: Molecular Voxels in the Blood Borne "Hologram" of Organ Function, Disfunction and Cancer. Arch Immunol Ther Exp (Warsz) 2023; 71:5. [PMID: 36729313 DOI: 10.1007/s00005-023-00671-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2022] [Accepted: 12/17/2022] [Indexed: 02/03/2023]
Abstract
Extracellular vesicles (EVs) and particles (EPs) serve as unique carriers of complex molecular information with increasingly recognized roles in health and disease. Individual EVs/EPs collectively contribute to the molecular fingerprint of their producing cell, reflecting its identity, state, function and phenotype. This property is of particular interest in cancer where enormous heterogeneity of cancer cells is compounded by the presence of altered stromal, vascular and immune cell populations, which is further complicated by systemic responses elicited by the disease in individual patients. These diverse and interacting cellular compartments are dynamically represented by myriads of EVs/EPs released into the circulating biofluids (blood) during cancer progression and treatment. Current approaches of liquid biopsy seek to follow specific elements of the EV/EP cargo that may have diagnostic utility (as biomarkers), such as cancer cell-derived mutant oncoproteins or nucleic acids. However, with emerging technologies enabling high-throughput EV/EP analysis at a single particle level, a more holistic approach may be on the horizon. Indeed, each EV/EP carries multidimensional information (molecular "voxel") that could be integrated across thousands of particles into a larger and unbiased landscape (EV/EP "hologram") reflecting the true cellular complexity of the disease, along with cellular interactions, systemic responses and effects of treatment. Thus, the longitudinal molecular mapping of EV/EP populations may add a new dimension to crucial aspects of cancer biology, personalized diagnostics, and therapy.
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10
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Erdbrügger U, Hoorn EJ, Le TH, Blijdorp CJ, Burger D. Extracellular Vesicles in Kidney Diseases: Moving Forward. KIDNEY360 2023; 4:245-257. [PMID: 36821616 PMCID: PMC10103258 DOI: 10.34067/kid.0001892022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Accepted: 12/18/2022] [Indexed: 12/23/2022]
Abstract
Extracellular vesicles (EVs) are evolving as novel cell mediators, biomarkers, and therapeutic targets in kidney health and disease. They are naturally derived from cells both within and outside the kidney and carry cargo which mirrors the state of the parent cell. Thus, they are potentially more sensitive and disease-specific as biomarkers and messengers in various kidney diseases. Beside their role as novel communicators within the nephron, they likely communicate between different organs affected by various kidney diseases. Study of urinary EVs (uEVs) can help to fill current knowledge gaps in kidney diseases. However, separation and characterization are challenged by their heterogeneity in size, shape, and cargo. Fortunately, more sensitive and direct EV measuring tools are in development. Many clinical syndromes in nephrology from acute to chronic kidney and glomerular to tubular diseases have been studied. Yet, validation of biomarkers in larger cohorts is warranted and simpler tools are needed. Translation from in vitro to in vivo studies is also urgently needed. The therapeutic role of uEVs in kidney diseases has been studied extensively in rodent models of AKI. On the basis of the current exponential growth of EV research, the field of EV diagnostics and therapeutics is moving forward.
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Affiliation(s)
- Uta Erdbrügger
- Division of Nephrology, Department of Medicine, University of Virginia Health System, Charlottesville, Virginia
| | - Ewout J. Hoorn
- Division of Nephrology and Transplantation, Department of Internal Medicine, Erasmus Medical Center, University Medical Center Rotterdam, Rotterdam, The Netherlands
| | - Thu H. Le
- Division of Nephrology, Department of Medicine, University of Rochester Medical Center, Rochester, New York
| | - Charles J. Blijdorp
- Division of Nephrology and Transplantation, Department of Internal Medicine, Erasmus Medical Center, University Medical Center Rotterdam, Rotterdam, The Netherlands
| | - Dylan Burger
- Kidney Research Centre, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
- Department of Cellular and Molecular Medicine, University of Ottawa, Ottawa, Ontario, Canada
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11
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Rudolphi CF, Blijdorp CJ, van Willigenburg H, Salih M, Hoorn EJ. Urinary extracellular vesicles and tubular transport. Nephrol Dial Transplant 2022:6659197. [PMID: 35945648 DOI: 10.1093/ndt/gfac235] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Tubular transport is a key function of the kidney to maintain electrolyte and acid-base homeostasis. Urinary extracellular vesicles (uEVs) harbor water, electrolyte, and acid-base transporters expressed at the apical plasma membrane of tubular epithelial cells. Within the uEV proteome, the correlations between kidney and uEV protein abundances are strongest for tubular transporters. Therefore, uEVs offer a non-invasive approach to probe tubular transport in health and disease. Here, we will review how kidney tubular physiology is reflected in uEVs and, conversely, how uEVs may modify tubular transport. Clinically, uEV tubular transporter profiling has been applied to rare diseases such as inherited tubulopathies, but also to more common conditions such as hypertension and kidney disease. Although uEVs hold the promise to advance the diagnosis of kidney disease to the molecular level, several biological and technical complexities still need to be addressed. The future will tell if uEV analysis will mainly be a powerful tool to study tubular physiology in humans or if it will move forward to become a diagnostic bedside test.
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Affiliation(s)
- Crissy F Rudolphi
- Department of Internal Medicine, Division of Nephrology and Transplantation, Erasmus Medical Center, University Medical Center Rotterdam, Rotterdam, The Netherlands
| | - Charles J Blijdorp
- Department of Internal Medicine, Division of Nephrology and Transplantation, Erasmus Medical Center, University Medical Center Rotterdam, Rotterdam, The Netherlands
| | - Hester van Willigenburg
- Department of Internal Medicine, Division of Nephrology and Transplantation, Erasmus Medical Center, University Medical Center Rotterdam, Rotterdam, The Netherlands
| | - Mahdi Salih
- Department of Internal Medicine, Division of Nephrology and Transplantation, Erasmus Medical Center, University Medical Center Rotterdam, Rotterdam, The Netherlands
| | - Ewout J Hoorn
- Department of Internal Medicine, Division of Nephrology and Transplantation, Erasmus Medical Center, University Medical Center Rotterdam, Rotterdam, The Netherlands
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12
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Skryabin GO, Komelkov AV, Zhordania KI, Bagrov DV, Vinokurova SV, Galetsky SA, Elkina NV, Denisova DA, Enikeev AD, Tchevkina EM. Extracellular Vesicles from Uterine Aspirates Represent a Promising Source for Screening Markers of Gynecologic Cancers. Cells 2022; 11:cells11071064. [PMID: 35406627 PMCID: PMC8997481 DOI: 10.3390/cells11071064] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 03/18/2022] [Accepted: 03/20/2022] [Indexed: 02/07/2023] Open
Abstract
Extracellular vesicles (EVs), including exosomes, are key factors of intercellular communication, performing both local and distant transfers of bioactive molecules. The increasingly obvious role of EVs in carcinogenesis, similarity of molecular signatures with parental cells, precise selection and high stability of cargo molecules make exosomes a promising source of liquid biopsy markers for cancer diagnosis. The uterine cavity fluid, unlike blood, urine and other body fluids commonly used to study EVs, is of local origin and therefore enriched in EVs secreted by cells of the female reproductive tract. Here, we show that EVs, including those corresponding to exosomes, could be isolated from individual samples of uterine aspirates (UA) obtained from epithelial ovarian cancer (EOC) patients and healthy donors using the ultracentrifugation technique. First, the conducted profiling of small RNAs (small RNA-seq) from UA-derived EVs demonstrated the presence of non-coding RNA molecules belonging to various classes. The analysis of the miRNA content in EVs from UA performed on a pilot sample revealed significant differences in the expression levels of a number of miRNAs in EVs obtained from EOC patients compared to healthy individuals. The results open up prospects for using UA-derived EVs as a source of markers for the diagnostics of gynecological cancers, including EOC.
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Affiliation(s)
- Gleb O. Skryabin
- Institute of Carcinogenesis, N.N. Blokhin National Medical Research Center of Oncology, Kashirskoye sh. 24, 115478 Moscow, Russia; (G.O.S.); (K.I.Z.); (S.V.V.); (S.A.G.); (N.V.E.); (D.A.D.); (A.D.E.); (E.M.T.)
| | - Andrey V. Komelkov
- Institute of Carcinogenesis, N.N. Blokhin National Medical Research Center of Oncology, Kashirskoye sh. 24, 115478 Moscow, Russia; (G.O.S.); (K.I.Z.); (S.V.V.); (S.A.G.); (N.V.E.); (D.A.D.); (A.D.E.); (E.M.T.)
- Correspondence: ; Tel.: +7-926-482-9147
| | - Kirill I. Zhordania
- Institute of Carcinogenesis, N.N. Blokhin National Medical Research Center of Oncology, Kashirskoye sh. 24, 115478 Moscow, Russia; (G.O.S.); (K.I.Z.); (S.V.V.); (S.A.G.); (N.V.E.); (D.A.D.); (A.D.E.); (E.M.T.)
| | - Dmitry V. Bagrov
- Department of Bioengineering, Faculty of Biology, M.V. Lomonosov Moscow State University, Leninskie Gory, 1/12, 111234 Moscow, Russia;
| | - Svetlana V. Vinokurova
- Institute of Carcinogenesis, N.N. Blokhin National Medical Research Center of Oncology, Kashirskoye sh. 24, 115478 Moscow, Russia; (G.O.S.); (K.I.Z.); (S.V.V.); (S.A.G.); (N.V.E.); (D.A.D.); (A.D.E.); (E.M.T.)
| | - Sergey A. Galetsky
- Institute of Carcinogenesis, N.N. Blokhin National Medical Research Center of Oncology, Kashirskoye sh. 24, 115478 Moscow, Russia; (G.O.S.); (K.I.Z.); (S.V.V.); (S.A.G.); (N.V.E.); (D.A.D.); (A.D.E.); (E.M.T.)
| | - Nadezhda V. Elkina
- Institute of Carcinogenesis, N.N. Blokhin National Medical Research Center of Oncology, Kashirskoye sh. 24, 115478 Moscow, Russia; (G.O.S.); (K.I.Z.); (S.V.V.); (S.A.G.); (N.V.E.); (D.A.D.); (A.D.E.); (E.M.T.)
| | - Darya A. Denisova
- Institute of Carcinogenesis, N.N. Blokhin National Medical Research Center of Oncology, Kashirskoye sh. 24, 115478 Moscow, Russia; (G.O.S.); (K.I.Z.); (S.V.V.); (S.A.G.); (N.V.E.); (D.A.D.); (A.D.E.); (E.M.T.)
| | - Adel D. Enikeev
- Institute of Carcinogenesis, N.N. Blokhin National Medical Research Center of Oncology, Kashirskoye sh. 24, 115478 Moscow, Russia; (G.O.S.); (K.I.Z.); (S.V.V.); (S.A.G.); (N.V.E.); (D.A.D.); (A.D.E.); (E.M.T.)
| | - Elena M. Tchevkina
- Institute of Carcinogenesis, N.N. Blokhin National Medical Research Center of Oncology, Kashirskoye sh. 24, 115478 Moscow, Russia; (G.O.S.); (K.I.Z.); (S.V.V.); (S.A.G.); (N.V.E.); (D.A.D.); (A.D.E.); (E.M.T.)
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13
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Nicol JL, Woodrow C, Cunningham BJ, Mollee P, Weber N, Smith MD, Nicol AJ, Gordon LG, Hill MM, Skinner TL. An Individualized Exercise Intervention for People with Multiple Myeloma—Study Protocol of a Randomized Waitlist-Controlled Trial. Curr Oncol 2022; 29:901-923. [PMID: 35200576 PMCID: PMC8870457 DOI: 10.3390/curroncol29020077] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2021] [Revised: 01/28/2022] [Accepted: 01/31/2022] [Indexed: 11/16/2022] Open
Abstract
People with multiple myeloma (MM) are second only to people with lung cancer for the poorest reported health-related quality of life (HRQoL) of all cancer types. Whether exercise can improve HRQoL in MM, where bone pain and lesions are common, requires investigation. This trial aims to evaluate the efficacy of an exercise intervention compared with control on HRQoL in people with MM. Following baseline testing, people with MM (n = 60) will be randomized to an exercise (EX) or waitlist control (WT) group. EX will complete 12-weeks of supervised (24 sessions) and unsupervised (12 sessions) individualized, modular multimodal exercise training. From weeks 12–52, EX continue unsupervised training thrice weekly, with one optional supervised group-based session weekly from weeks 12–24. The WT will be asked to maintain their current activity levels for the first 12-weeks, before completing the same protocol as EX for the following 52 weeks. Primary (patient-reported HRQoL) and secondary (bone health and pain, fatigue, cardiorespiratory fitness, muscle strength, body composition, disease response, and blood biomarkers) outcomes will be assessed at baseline, 12-, 24- and 52-weeks. Adverse events, attendance, and adherence will be recorded and cost-effectiveness analysis performed. The findings will inform whether exercise should be included as part of standard myeloma care to improve the health of this unique population.
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Affiliation(s)
- Jennifer L. Nicol
- School of Human Movement and Nutrition Sciences, The University of Queensland, Brisbane 4072, Australia; (B.J.C.); (A.J.N.); (T.L.S.)
- QIMR Berghofer Medical Research Institute, Brisbane 4006, Australia; (L.G.G.); (M.M.H.)
- Correspondence:
| | - Carmel Woodrow
- Haematology, Division of Cancer, Princess Alexandra Hospital, Brisbane 4102, Australia; (C.W.); (P.M.)
| | - Brent J. Cunningham
- School of Human Movement and Nutrition Sciences, The University of Queensland, Brisbane 4072, Australia; (B.J.C.); (A.J.N.); (T.L.S.)
| | - Peter Mollee
- Haematology, Division of Cancer, Princess Alexandra Hospital, Brisbane 4102, Australia; (C.W.); (P.M.)
- Faculty of Medicine, The University of Queensland, Brisbane 4006, Australia
| | - Nicholas Weber
- Haematology, Cancer Care Services, Royal Brisbane and Women’s Hospital, Brisbane 4006, Australia;
| | - Michelle D. Smith
- School of Health and Rehabilitation Sciences, The University of Queensland, Brisbane 4072, Australia;
| | - Andrew J. Nicol
- School of Human Movement and Nutrition Sciences, The University of Queensland, Brisbane 4072, Australia; (B.J.C.); (A.J.N.); (T.L.S.)
- Brisbane Clinic for Lymphoma, Myeloma and Leukaemia, Greenslopes Private Hospital, Brisbane 4120, Australia
| | - Louisa G. Gordon
- QIMR Berghofer Medical Research Institute, Brisbane 4006, Australia; (L.G.G.); (M.M.H.)
- Faculty of Medicine, The University of Queensland, Brisbane 4006, Australia
- Palliative Care Outcomes Centre, School of Nursing and Cancer, Queensland University of Technology, Brisbane 4059, Australia
| | - Michelle M. Hill
- QIMR Berghofer Medical Research Institute, Brisbane 4006, Australia; (L.G.G.); (M.M.H.)
- UQ Centre for Clinical Research, Faculty of Medicine, The University of Queensland, Brisbane 4006, Australia
| | - Tina L. Skinner
- School of Human Movement and Nutrition Sciences, The University of Queensland, Brisbane 4072, Australia; (B.J.C.); (A.J.N.); (T.L.S.)
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14
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Chapuy-Regaud S, Allioux C, Capelli N, Migueres M, Lhomme S, Izopet J. Vectorial Release of Human RNA Viruses from Epithelial Cells. Viruses 2022; 14:231. [PMID: 35215825 PMCID: PMC8875463 DOI: 10.3390/v14020231] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Revised: 01/07/2022] [Accepted: 01/21/2022] [Indexed: 02/04/2023] Open
Abstract
Epithelial cells are apico-basolateral polarized cells that line all tubular organs and are often targets for infectious agents. This review focuses on the release of human RNA virus particles from both sides of polarized human cells grown on transwells. Most viruses that infect the mucosa leave their host cells mainly via the apical side while basolateral release is linked to virus propagation within the host. Viruses do this by hijacking the cellular factors involved in polarization and trafficking. Thus, understanding epithelial polarization is essential for a clear understanding of virus pathophysiology.
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Affiliation(s)
- Sabine Chapuy-Regaud
- Department of Virology, CHU Purpan, F-31059 Toulouse, France; (N.C.); (M.M.); (S.L.); (J.I.)
- INFINITy (Toulouse Institute for Infectious and Inflammatory Diseases), INSERM UMR1291, CNRS UMR5051, Université Toulouse III, CHU Purpan, F-31024 Toulouse, France;
| | - Claire Allioux
- INFINITy (Toulouse Institute for Infectious and Inflammatory Diseases), INSERM UMR1291, CNRS UMR5051, Université Toulouse III, CHU Purpan, F-31024 Toulouse, France;
| | - Nicolas Capelli
- Department of Virology, CHU Purpan, F-31059 Toulouse, France; (N.C.); (M.M.); (S.L.); (J.I.)
- INFINITy (Toulouse Institute for Infectious and Inflammatory Diseases), INSERM UMR1291, CNRS UMR5051, Université Toulouse III, CHU Purpan, F-31024 Toulouse, France;
| | - Marion Migueres
- Department of Virology, CHU Purpan, F-31059 Toulouse, France; (N.C.); (M.M.); (S.L.); (J.I.)
- INFINITy (Toulouse Institute for Infectious and Inflammatory Diseases), INSERM UMR1291, CNRS UMR5051, Université Toulouse III, CHU Purpan, F-31024 Toulouse, France;
| | - Sébastien Lhomme
- Department of Virology, CHU Purpan, F-31059 Toulouse, France; (N.C.); (M.M.); (S.L.); (J.I.)
- INFINITy (Toulouse Institute for Infectious and Inflammatory Diseases), INSERM UMR1291, CNRS UMR5051, Université Toulouse III, CHU Purpan, F-31024 Toulouse, France;
| | - Jacques Izopet
- Department of Virology, CHU Purpan, F-31059 Toulouse, France; (N.C.); (M.M.); (S.L.); (J.I.)
- INFINITy (Toulouse Institute for Infectious and Inflammatory Diseases), INSERM UMR1291, CNRS UMR5051, Université Toulouse III, CHU Purpan, F-31024 Toulouse, France;
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15
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Liu HH, Li XQ, Liu JF, Cui S, Liu H, Hu B, Huang SB, Wang L, Yang W, Wang CC, Meng Y. miR-6869-5p Transported by Plasma Extracellular Vesicles Mediates Renal Tubule Injury and Renin-Angiotensin System Activation in Obesity. Front Med (Lausanne) 2021; 8:725598. [PMID: 34568382 PMCID: PMC8455906 DOI: 10.3389/fmed.2021.725598] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Accepted: 08/04/2021] [Indexed: 12/11/2022] Open
Abstract
Obesity increases the risk of other diseases, including kidney disease. Local renal tubular renin-angiotensin system (RAS) activation may play a role in obesity-associated kidney disease. Extracellular vehicles (EVs) transmit necessary information in obesity and cause remote organ damage, but the mechanism is unclear. The aim of the study was to investigate whether the plasma EVs cargo miR-6869-5p causes RAS activation and renal tubular damage. We isolated plasma EVs from obese and lean subjects and analyzed differentially-expressed miRNAs using RNA-seq. Then, EVs were co-cultured with human proximal renal tubular epithelial cells (PTECs) in vitro. Immunohistochemical pathology was used to assess the degree of RAS activation and tubule injury in vivo. The tubule damage-associated protein and RAS activation components were detected by Western blot. Obesity led to renal tubule injury and RAS activation in humans and mice. Obese-EVs induce RAS activation and renal tubular injury in PTECs. Importantly, miR-6869-5p-treated PTECs caused RAS activation and renal tubular injury, similar to Obese-EVs. Inhibiting miR-6869-5p decreased RAS activation and renal tubular damage. Our findings indicate that plasma Obese-EVs induce renal tubule injury and RAS activation via miR-6869-5p transport. Thus, miR-6869-5p in plasma Obese-EVs could be a therapeutic target for local RAS activation in obesity-associated kidney disease.
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Affiliation(s)
- Huan-Huan Liu
- Department of Nephrology, The First Affiliated Hospital of Jinan University, Guangzhou, China
| | - Xia-Qing Li
- Department of Nephrology, The First Affiliated Hospital of Jinan University, Guangzhou, China
| | - Jin-Feng Liu
- Department of Nephrology, The First Affiliated Hospital of Jinan University, Guangzhou, China
| | - Shuang Cui
- Department of Nephrology, The First Affiliated Hospital of Jinan University, Guangzhou, China
| | - Han Liu
- Department of Nephrology, The First Affiliated Hospital of Jinan University, Guangzhou, China
| | - Bo Hu
- Department of Nephrology, The First Affiliated Hospital of Jinan University, Guangzhou, China
| | - Si-Bo Huang
- Department of Nephrology, The First Affiliated Hospital of Jinan University, Guangzhou, China
| | - Li Wang
- Nephrology Department, Southern Medical University Affiliated Longhua People's Hospital, Shenzhen, China
| | - Wah Yang
- Department of Metabolic and Bariatric Surgery, The First Affiliated Hospital of Jinan University, Guangzhou, China.,Jinan University Institute of Obesity and Metabolic Disorders, Guangzhou, China
| | - Cun-Chuan Wang
- Department of Metabolic and Bariatric Surgery, The First Affiliated Hospital of Jinan University, Guangzhou, China.,Jinan University Institute of Obesity and Metabolic Disorders, Guangzhou, China
| | - Yu Meng
- Central Laboratory, The Fifth Affiliated Hospital of Jinan University, Heyuan, China.,Jinan University Institute of Nephrology, Guangzhou, China
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16
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Wang X, Wilkinson R, Kildey K, Ungerer JPJ, Hill MM, Shah AK, Mohamed A, Dutt M, Molendijk J, Healy H, Kassianos AJ. Molecular and functional profiling of apical versus basolateral small extracellular vesicles derived from primary human proximal tubular epithelial cells under inflammatory conditions. J Extracell Vesicles 2021; 10:e12064. [PMID: 33643548 PMCID: PMC7886702 DOI: 10.1002/jev2.12064] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2020] [Revised: 01/08/2021] [Accepted: 01/13/2021] [Indexed: 12/14/2022] Open
Abstract
Proximal tubular epithelial cells (PTEC) are central players in inflammatory kidney diseases. However, the complex signalling mechanism/s via which polarized PTEC mediate disease progression are poorly understood. Small extracellular vesicles (sEV), including exosomes, are recognized as fundamental components of cellular communication and signalling courtesy of their molecular cargo (lipids, microRNA, proteins). In this study, we examined the molecular content and function of sEV secreted from the apical versus basolateral surfaces of polarized human primary PTEC under inflammatory diseased conditions. PTEC were cultured under normal and inflammatory conditions on Transwell inserts to enable separate collection and isolation of apical/basolateral sEV. Significantly increased numbers of apical and basolateral sEV were secreted under inflammatory conditions compared with equivalent normal conditions. Multi‐omics analysis revealed distinct molecular profiles (lipids, microRNA, proteins) between inflammatory and normal conditions for both apical and basolateral sEV. Biological pathway analyses of significantly differentially expressed molecules associated apical inflammatory sEV with processes of cell survival and immunological disease, while basolateral inflammatory sEV were linked to pathways of immune cell trafficking and cell‐to‐cell signalling. In line with this mechanistic concept, functional assays demonstrated significantly increased production of chemokines (monocyte chemoattractant protein‐1, interleukin‐8) and immuno‐regulatory cytokine interleukin‐10 by peripheral blood mononuclear cells activated with basolateral sEV derived from inflammatory PTEC. We propose that the distinct molecular composition of sEV released from the apical versus basolateral membranes of human inflammatory PTEC may reflect specialized functional roles, with basolateral‐derived sEV pivotal in modulating tubulointerstitial inflammatory responses observed in many immune‐mediated kidney diseases. These findings provide a rationale to further evaluate these sEV‐mediated inflammatory pathways as targets for biomarker and therapeutic development.
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Affiliation(s)
- Xiangju Wang
- Conjoint Internal Medicine Laboratory, Chemical Pathology Pathology Queensland Brisbane Queensland Australia.,Kidney Health Service Royal Brisbane and Women's Hospital Brisbane Queensland Australia
| | - Ray Wilkinson
- Conjoint Internal Medicine Laboratory, Chemical Pathology Pathology Queensland Brisbane Queensland Australia.,Kidney Health Service Royal Brisbane and Women's Hospital Brisbane Queensland Australia.,Institute of Health and Biomedical Innovation Queensland University of Technology Brisbane Queensland Australia.,Faculty of Medicine University of Queensland Brisbane Queensland Australia
| | - Katrina Kildey
- Conjoint Internal Medicine Laboratory, Chemical Pathology Pathology Queensland Brisbane Queensland Australia.,Kidney Health Service Royal Brisbane and Women's Hospital Brisbane Queensland Australia
| | - Jacobus P J Ungerer
- Conjoint Internal Medicine Laboratory, Chemical Pathology Pathology Queensland Brisbane Queensland Australia.,Faculty of Medicine University of Queensland Brisbane Queensland Australia
| | - Michelle M Hill
- QIMR Berghofer Medical Research Institute Brisbane Queensland Australia
| | - Alok K Shah
- QIMR Berghofer Medical Research Institute Brisbane Queensland Australia
| | - Ahmed Mohamed
- QIMR Berghofer Medical Research Institute Brisbane Queensland Australia
| | - Mriga Dutt
- QIMR Berghofer Medical Research Institute Brisbane Queensland Australia
| | - Jeffrey Molendijk
- QIMR Berghofer Medical Research Institute Brisbane Queensland Australia
| | - Helen Healy
- Conjoint Internal Medicine Laboratory, Chemical Pathology Pathology Queensland Brisbane Queensland Australia.,Kidney Health Service Royal Brisbane and Women's Hospital Brisbane Queensland Australia.,Faculty of Medicine University of Queensland Brisbane Queensland Australia
| | - Andrew J Kassianos
- Conjoint Internal Medicine Laboratory, Chemical Pathology Pathology Queensland Brisbane Queensland Australia.,Kidney Health Service Royal Brisbane and Women's Hospital Brisbane Queensland Australia.,Institute of Health and Biomedical Innovation Queensland University of Technology Brisbane Queensland Australia.,Faculty of Medicine University of Queensland Brisbane Queensland Australia
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