Physicocemical and antigenic properties of peripheral blood lymphocytes and shed membrane microparticles were studied in patients with CHD and angina of effort and in those with hypertensive disease. The frequency of lymphocyte blebbing in CHD and angina patients was significantly higher than in those with HD (70.56, 52, 25.7% respectively). Incubation with rotenone and zymosan resulted in an increase of lymphocyte blebbing to 77.34 and 86.5% vs the initial level of 70.56% (p < 0.05). Patients of both groups had an increased number of membrane microparticles in peripheral blood (59.6 and 78.2 U/4 cm2 respectively). It is concluded that modulation of Imphocyte blebbing and microparticle shedding may be a promising target of cardiovascular prophylaxis.
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Tissue Cell
December 2024
Department of Toxicology, Ch. Charan Singh University Meerut, 250 004, India. Electronic address:
Aims: Present study demonstrates dose and time dependent effects of NiONPs (<30 nm) on the ovaries of Wistar rat.
Methods: Female rats were gavaged NiONPs or NiOMPs (5 mg/kg b.w.
FASEB J
January 2024
Department of Biomedical and Clinical Sciences, Linköping University, Linköping, Sweden.
Low-intensity loading maintains or increases bone mass, whereas lack of mechanical loading and high-intensity loading decreases bone mass, possibly via the release of extracellular vesicles by mechanosensitive bone cells. How different loading intensities alter the biological effect of these vesicles is not fully understood. Dynamic fluid shear stress at low intensity (0.
View Article and Find Full Text PDFProteomics
June 2024
Department of Biochemistry and Chemistry, La Trobe Institute for Molecular Science (LIMS), School of Agriculture, Biomedicine and Environment (SABE), La Trobe University, Melbourne, Victoria, Australia.
Cell-derived extracellular vesicles (EVs) are evolutionary-conserved secretory organelles that, based on their molecular composition, are important intercellular signaling regulators. At least three classes of circulating EVs are known based on mechanism of biogenesis: exosomes (sEVs/Exos), microparticles (lEVs/MPs), and shed midbody remnants (lEVs/sMB-Rs). sEVs/Exos are of endosomal pathway origin, microparticles (lEVs/MPs) from plasma membrane blebbing and shed midbody remnants (lEVs/sMB-Rs) arise from symmetric cytokinetic abscission.
View Article and Find Full Text PDFSmall
July 2023
Department of Agro-Environmental Sciences, Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University, Fukuoka, 819-0395, Japan.
The intracellular uptake and interaction behavior of emulsion microparticles in liver cells critical to host defense and inflammation is significant to understanding their potential cytotoxicity and biomedical applications. In this study, the cell death responses of fibroblastic, hepatocyte, and Kupffer cells (KCs) induced by four types of emulsion particles that are stabilized by polysaccharide nanofibers (cellulose or chitin), an inorganic nanoparticle (β-tricalcium phosphate), or surfactants are compared. Pickering emulsion (PE) microparticles stabilized by polysaccharide nanofibers or inorganic nanoparticles have a droplet size of 1-3 µm, while the surfactant-stabilized emulsion has a diameter of ≈190 nm.
View Article and Find Full Text PDFInt J Mol Sci
January 2023
Université Paris Cité, INSERM, Innovative Therapies in Haemostasis, 75013 Paris, France.
A number of stressors and inflammatory mediators (cytokines, proteases, oxidative stress mediators) released during inflammation or ischemia stimulate and activate cells in blood, the vessel wall or tissues. The most well-known functional and phenotypic responses of activated cells are (1) the immediate expression and/or release of stored or newly synthesized bioactive molecules, and (2) membrane blebbing followed by release of microvesicles. An ultimate response, namely the formation of extracellular traps by neutrophils (NETs), is outside the scope of this work.
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