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This chapter describes the isolation and characterization of extracellular vesicles (EVs) isolated from primary rodent osteoblasts and extracellular matrix. The key advantages of this assay are that it allows the isolation of EVs from the conditioned media of primary osteoblasts at varying stages of differentiation and subsequent characterization prior to downstream applications.
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http://dx.doi.org/10.1007/978-1-0716-4306-8_8 | DOI Listing |
Biol Psychiatry
September 2025
Developmental Neuroscience and Neurogenetics Program, The Saban Research Institute, Los Angeles, CA; Child and Brain Development Program, Canadian Institute for Advanced Research, Toronto, Canada; Division of Endocrinology, Children's Hospital LA, Los Angeles, CA; Department of Pediatrics, Keck Scho
Background: Exposure to early life adversity (ELA), including childhood maltreatment, is one of the most significant risk factors for the emergence of psychosomatic disorders in adolescence and adulthood. Most investigations into biological processes that have been perturbed by ELA have profiled DNA methylation in whole blood and coalesced around perturbations of immunobiology being centrally insulted by ELA.
Methods: To identify novel molecular signatures that are enduringly perturbed by childhood maltreatment, we isolated circulating extracellular vesicles (EVs) from plasma collected from adolescent rhesus macaques that had either experienced nurturing maternal care (CONT, n = 7, 4M 3F) or maltreatment in infancy (MALT, n = 6, 3M 3F).
PLoS One
September 2025
Cancer Research Institute, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea.
Crosstalk between leukemic cells and their surrounding mesenchymal stromal cells (MSCs) in the bone marrow microenvironment is crucial for the pathogenesis of myelodysplastic syndromes (MDS) and is mediated by extracellular vesicles (EVs). The EV-specific miRNAs derived from MDS-MSCs remain poorly explored. EVs isolated from HS-5, an immortalized stromal cell line, promoted the proliferation and 5-azacytidine (AZA) resistance of SKM-1 cells.
View Article and Find Full Text PDFPLoS One
September 2025
Department of Cardiac Surgery, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany.
Background: Cardiac ischemia reperfusion (I/R) injury is a serious consequence of reperfusion therapy for myocardial infarction (MI). Peptidylarginine deiminase 4 (PAD4) is a calcium-dependent enzyme that catalyzes the citrullination of proteins. In previous studies, PAD4 inhibition protected distinct organs from I/R injury by preventing the formation of neutrophil extracellular traps (NETs) and attenuating inflammatory responses.
View Article and Find Full Text PDFFront Immunol
September 2025
Institute of Pulmonary Medicine, Hadassah Hebrew University Medical Center, Jerusalem, Israel.
Neutrophil extracellular traps (NETs) are DNA-protein structures released during a form of programmed neutrophil death known as NETosis. While NETs have been implicated in both tumor inhibition and promotion, their functional role in cancer remains ambiguous. In this study, we compared the NET-forming capacity and functional effects of NETs derived from lung cancer (LC) patients and healthy donors (H).
View Article and Find Full Text PDFLung Cancer
September 2025
Division of Respiratory Diseases, Department of Internal Medicine, The Jikei University School of Medicine, 3-25-8 Nishi-Shimbashi, Minato-ku, Tokyo, Japan; Division of Next-Generation Drug Development Research, Research Center for Medical Sciences, The Jikei University School of Medicine, 3-25-8 Ni
Background: The risk factors associated with treatment resistance to consolidation durvalumab following chemoradiotherapy (CRT) for locally advanced non-small cell lung cancer (NSCLC) have not been well established.
Methods: Extracellular vesicles (EVs) were isolated from the pretreatment serum of 73 patients treated with consolidation durvalumab. Isolation was performed using CD9/CD63 antibodies, and EV proteins were identified using liquid chromatography-tandem mass spectrometry (LC-MS).