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Purpose: To isolate and identify exosomes derived from periodontal ligament stem cells (PDLSCs) collected by ultracentrifugation.
Methods: Using the limiting dilution technique, human PDLSCs were isolated and expanded. The cell culture supernatant of PDLSCs was collected. Exosomes were collected and purified with a ultracentrifugation method. Biological characteristics of exosomes derived from PDLSCs were measured by transmission electron microscopy (TEM), Western blot and nanosight tracing analysis (NTA).
Results: Exosomes could be successfully isolated from the supernatant of PDLSCs by a ultracentrifugation method. Under TEM, the PDLSC-derived exosomes exhibited elliptic or saucer-like shape and the central area had lower electron density than the circum area. The PDLSC-derived exosomes could express the common surface adhesion molecules CD9, CD63, CD81 and TSG101. NTA results showed that the collected exosomes had a size around (119±12.1) nm and an approximate concentration of (3.80±0.39)×10 particles/mL.
Conclusions: Exosomes derived from PDLSCs can be collected by a ultracentrifugation method, which expresses common membrane proteins and morphological characteristics of exosomes.
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Nan Fang Yi Ke Da Xue Xue Bao
August 2025
Affiliated Hospital of North China University of Science and Technology, Tangshan 063000, China.
Objectives: To investigate the effect of cardiomyocytes-derived exosomes on lipopolysaccharide (LPS)-induced cardiomyocyte injury and its mechanism.
Methods: Exosomes isolated from rat cardiomyocytes with or without LPS treatment were co-cultured with rat lymphocytes. The lymphocytes with or without exosome treatment were co-cultured with LPS-induced rat cardiomyocytes for 48 h.
Braz J Otorhinolaryngol
September 2025
Zhejiang University, College of Medicine, Department of Otolaryngology, Hangzhou City, Zhejiang Province, China.
Objectives: Exosomes play a crucial role in intercellular communication and may contribute to the development of various diseases. Nevertheless, their role in Nasal Polyps (NPs) remains poorly understood. Herein, Nasal Polyp Fibroblasts (NPF) were used to release exosomes, and epithelial cells were cocultured with NPF-derived exosomes to analyze Epithelial-Mesenchymal Transition (EMT) in Chronic Rhinosinusitis (CRS).
View Article and Find Full Text PDFAnal Chem
September 2025
Department of Analytical Chemistry, College of Chemistry, Jilin University, Changchun 130012, China.
Ginseng exosomes are a kind of promising extracellular vesicle containing unique bioactive components. However, the investigation on ginseng-derived exosomes is still in the initial stage. This study developed a photonic crystal-based Bragg scattering coupling electrochemiluminescence (BSC-ECL) biosensor for detection of miRNA396a-3p in exosome-like nanoparticles (GENs) and ginseng exosomes (Gexos).
View Article and Find Full Text PDFEur J Immunol
September 2025
CHU Nantes, Nantes Université, INSERM, Centre de Recherche Translationnelle En Transplantation et Immunologie (CR2TI), Nantes, France.
In the field of lung transplantation (LTx), the survival of lung transplant recipients (LTRs) is limited by events such as primary graft dysfunction (PGD), infections, and acute rejection (AR), which promote the development of chronic lung allograft dysfunction (CLAD). Extracellular vesicles (EVs), including exosomes and microvesicles, have emerged as key players in LTx because of their roles in immune regulation, inflammation, and antigen presentation. EVs carry immunologically active molecules such as MHC class I/II proteins, cytokines, and lung self-antigens (SAgs), suggesting their involvement in infections and both AR and CLAD.
View Article and Find Full Text PDFJ Ethnopharmacol
September 2025
National Clinical Research Center for Chinese Medicine Cardiology, Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, 100091, China. Electronic address:
Ethnopharmacological Relevance: Both chuanxiong rhizome and Coptis chinensis were first recorded in the Shennong's Classic of Materia Medica. Chuanxiong rhizome and Coptis chinensis are a classic herbal pair in Traditional Chinese Medicine (TCM), renowned for their effects in activating blood circulation and resolving toxicity. They are widely used to treat chest impediment and heart pain.
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