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Barranco I, Alvarez-Barrientos A, Parra A, Martínez-Díaz P, Lucas X, Roca J. Immunophenotype profile by flow cytometry reveals different subtypes of extracellular vesicles in porcine seminal plasma. Cell Commun Signal 2024; 22:63. [PMID: 38263049 PMCID: PMC10807091 DOI: 10.1186/s12964-024-01485-1] [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: 10/17/2023] [Accepted: 01/09/2024] [Indexed: 01/25/2024] Open
Abstract
BACKGROUND Porcine seminal plasma (SP) is endowed with a heterogeneous population of extracellular vesicles (sEVs). This study evaluated the immunophenotypic profile by high-sensitivity flow cytometry of eight sEV subpopulations isolated according to their size (small [S-sEVs] and large [L-sEVs]) from four different SP sources, namely three ejaculate fractions (the first 10 mL of the sperm rich fraction [SRF-P1], the remaining SRF [SRF-P2], and the post-SRF [PSRF]) and entire ejaculate (EE). METHODS Seminal EVs were isolated using a size exclusion chromatography-based protocol from six SP pools (five ejaculates/pool) of each SP source and characterized using complementary approaches including total protein (BCA™assay), particle size distribution (dynamic light scattering), morphology (transmission electron microscopy), and purity (albumin by Western blot). Expression of CD9, CD63, CD81, CD44 and HSP90β was analyzed in all sEV subpopulations by high-sensitivity flow cytometry according to MIFlowCyt-EV guidelines, including an accurate calibration, controls, and discrimination by CFSE-labelling. RESULTS Each sEV subpopulation exhibited a specific immunophenotypic profile. The percentage of sEVs positive for CD9, CD63, CD81 and HSP90β differed between S- and L-sEVs (P < 0.0001). Specifically, the percentage of sEVs positive for CD9 and CD63 was higher and that for CD81 was lower in S- than L-sEVs in the four SP sources. However, the percentage of HSP90β-positive sEVs was lower in S-sEVs than L-sEVs in the SRF-P1 and EE samples. The percentage of sEVs positive for CD9, CD63, and CD44 also differed among the four SP sources (P < 0.0001), being highest in PSRF samples. Notably, virtually all sEV subpopulations expressed CD44 (range: 88.04-98.50%). CONCLUSIONS This study demonstrated the utility of high-sensitivity flow cytometry for sEV immunophenotyping, allowing the identification of distinct sEV subpopulations that may have different cellular origin, cargo, functions, and target cells.
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Affiliation(s)
- Isabel Barranco
- Department of Medicine and Animal Surgery, Faculty of Veterinary Science, University of Murcia, Murcia, Spain.
| | | | - Ana Parra
- Department of Medicine and Animal Surgery, Faculty of Veterinary Science, University of Murcia, Murcia, Spain
| | - Pablo Martínez-Díaz
- Department of Medicine and Animal Surgery, Faculty of Veterinary Science, University of Murcia, Murcia, Spain
| | - Xiomara Lucas
- Department of Medicine and Animal Surgery, Faculty of Veterinary Science, University of Murcia, Murcia, Spain
| | - Jordi Roca
- Department of Medicine and Animal Surgery, Faculty of Veterinary Science, University of Murcia, Murcia, Spain
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Wahiduzzaman M, Liu Y, Huang T, Wei W, Li Y. Cell-cell communication analysis for single-cell RNA sequencing and its applications in carcinogenesis and COVID-19. BIOSAFETY AND HEALTH 2022. [DOI: 10.1016/j.bsheal.2022.03.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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Bardhi E, McDaniels J, Rousselle T, Maluf DG, Mas VR. Nucleic acid biomarkers to assess graft injury after liver transplantation. JHEP REPORTS : INNOVATION IN HEPATOLOGY 2022; 4:100439. [PMID: 35243279 PMCID: PMC8856989 DOI: 10.1016/j.jhepr.2022.100439] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Revised: 12/13/2021] [Accepted: 12/20/2021] [Indexed: 02/07/2023]
Abstract
Many risk factors and complications impact the success of liver transplantation, such as ischaemia-reperfusion injury, acute rejection, and primary graft dysfunction. Molecular biomarkers have the potential to accurately diagnose, predict, and monitor injury progression or organ failure. There is a critical opportunity for reliable and non-invasive biomarkers to reduce the organ shortage by enabling i) the assessment of donor organ quality, ii) the monitoring of short- and long-term graft function, and iii) the prediction of acute and chronic disease development. To date, no established molecular biomarkers have been used to guide clinical decision-making in transplantation. In this review, we outline the recent advances in cell-free nucleic acid biomarkers for monitoring graft injury in liver transplant recipients. Prior work in this area can be divided into two categories: biomarker discovery and validation studies. Circulating nucleic acids (CNAs) can be found in the extracellular environment pertaining to different biological fluids such as bile, blood, urine, and perfusate. CNAs that are packaged into extracellular vesicles may facilitate intercellular and interorgan communication. Thus, decoding their biological function, cellular origins and molecular composition is imperative for diagnosing causes of graft injury, guiding immunosuppression and improving overall patient survival. Herein, we discuss the most promising molecular biomarkers, their state of development, and the critical aspects of study design in biomarker research for early detection of post-transplant liver injury. Future advances in biomarker studies are expected to personalise post-transplant therapy, leading to improved patient care and outcomes.
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Baweja S, Bihari C, Negi P, Thangariyal S, Kumari A, Lal D, Maheshwari D, Singh Maras J, Nautiyal N, Kumar G, Kumar A, Trehanpati N, Mehta G, Kumar Chaudhary A, Maiwall R, Kumar Sarin S. Circulating extracellular vesicles induce monocyte dysfunction and are associated with sepsis and high mortality in cirrhosis. Liver Int 2021; 41:1614-1628. [PMID: 33713381 DOI: 10.1111/liv.14875] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/03/2020] [Revised: 02/11/2021] [Accepted: 03/06/2021] [Indexed: 12/12/2022]
Abstract
BACKGROUND Sepsis is common in cirrhosis and is often a result of immune dysregulation. Specific stimuli and pathways of inter-cellular communications between immune cells in cirrhosis and sepsis are incompletely understood. Immune cell-derived extracellular vesicles (EV) were studied to understand mechanisms of sepsis in cirrhosis. METHODS Immune cell-derived EV were measured in cirrhosis patients [Child-Turcotte-Pugh (Child) score A, n = 15; B n = 16; C n = 43 and Child-C with sepsis (n = 38)], and healthy controls (HC, n = 11). In vitro and in vivo functional relevance of EV in cirrhosis and associated sepsis was investigated. RESULTS Monocyte, neutrophil and hematopoietic stem cells associated EV progressively increased with higher Child score (P < .001)and correlated with liver disease severity indices (r2 > 0.3, P < .001), which further increased in Child C sepsis than without sepsis(P < .001); monocyte EV showing the highest association with disease stage [P = .013; Odds ratio-4.14(1.34-12.42)]. A threshold level of monocyte EV of 53/µl predicted mortality in patients of Child C with sepsis [Odds ratio-6.2 (2.4-15.9), AUROC = 0.76, P < .01]. In vitro EV from cirrhotic with sepsis compared without sepsis, induced mobilization arrest in healthy monocytes within 4 hours (P = .004), reduced basal oxygen consumption rate (P < .001) and induced pro-inflammatory genes (P < .05). The septic-EV on adoptive transfer to C57/BL6J mice, induced sepsis-like condition within 24 h with leukocytopenia (P = .005), intrahepatic inflammation with increased CD11b + cells (P = .03) and bone marrow hyperplasia (P < .01). CONCLUSION Extracellular vesicles induce functional impairment in circulating monocytes and contribute to the development and perpetuation of sepsis. High levels of monocyte EV correlate with mortality and can help early stratification of sicker patients.
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Affiliation(s)
- Sukriti Baweja
- Department of Molecular and Cellular Medicine, Institute of Liver and Biliary Sciences, New Delhi, India
| | - Chhagan Bihari
- Department of Pathology, Institute of Liver and Biliary Sciences, New Delhi, India
| | - Preeti Negi
- Department of Molecular and Cellular Medicine, Institute of Liver and Biliary Sciences, New Delhi, India
| | - Swati Thangariyal
- Department of Molecular and Cellular Medicine, Institute of Liver and Biliary Sciences, New Delhi, India
| | - Anupma Kumari
- Department of Molecular and Cellular Medicine, Institute of Liver and Biliary Sciences, New Delhi, India
| | - Deepika Lal
- Department of Molecular and Cellular Medicine, Institute of Liver and Biliary Sciences, New Delhi, India
| | - Deepanshu Maheshwari
- Department of Molecular and Cellular Medicine, Institute of Liver and Biliary Sciences, New Delhi, India
| | - Jaswinder Singh Maras
- Department of Molecular and Cellular Medicine, Institute of Liver and Biliary Sciences, New Delhi, India
| | - Nidhi Nautiyal
- Department of Molecular and Cellular Medicine, Institute of Liver and Biliary Sciences, New Delhi, India
| | - Guresh Kumar
- Department of Molecular and Cellular Medicine, Institute of Liver and Biliary Sciences, New Delhi, India
| | - Anupam Kumar
- Department of Molecular and Cellular Medicine, Institute of Liver and Biliary Sciences, New Delhi, India
| | - Nirupama Trehanpati
- Department of Molecular and Cellular Medicine, Institute of Liver and Biliary Sciences, New Delhi, India
| | - Gautam Mehta
- Institute for Liver and Digestive Health, University College London, London, UK.,Institute of Hepatology, Foundation for Liver Research, London, UK
| | | | - Rakhi Maiwall
- Department of Hepatology, Institute of Liver and Biliary Sciences, New Delhi, India
| | - Shiv Kumar Sarin
- Department of Molecular and Cellular Medicine, Institute of Liver and Biliary Sciences, New Delhi, India.,Department of Hepatology, Institute of Liver and Biliary Sciences, New Delhi, India
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Extracellular Vesicles: Potential Mediators of Psychosocial Stress Contribution to Osteoporosis? Int J Mol Sci 2021; 22:ijms22115846. [PMID: 34072559 PMCID: PMC8199340 DOI: 10.3390/ijms22115846] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2021] [Revised: 05/23/2021] [Accepted: 05/26/2021] [Indexed: 02/08/2023] Open
Abstract
Osteoporosis is characterized by low bone mass and damage to the bone tissue’s microarchitecture, leading to increased fracture risk. Several studies have provided evidence for associations between psychosocial stress and osteoporosis through various pathways, including the hypothalamic-pituitary-adrenocortical axis, the sympathetic nervous system, and other endocrine factors. As psychosocial stress provokes oxidative cellular stress with consequences for mitochondrial function and cell signaling (e.g., gene expression, inflammation), it is of interest whether extracellular vesicles (EVs) may be a relevant biomarker in this context or act by transporting substances. EVs are intercellular communicators, transfer substances encapsulated in them, modify the phenotype and function of target cells, mediate cell-cell communication, and, therefore, have critical applications in disease progression and clinical diagnosis and therapy. This review summarizes the characteristics of EVs, their role in stress and osteoporosis, and their benefit as biological markers. We demonstrate that EVs are potential mediators of psychosocial stress and osteoporosis and may be beneficial in innovative research settings.
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