Selective incorporation and functional properties of LCPUFA, especially DHA, in retinal and neural membranes suggests a specific role in the modulation of protein-lipid interactions, membrane bound receptor function, membrane permeability, cell signaling, regulation of gene expression and neuronal growth [25], [26], [27], [28], [29], [30].
Secramine A decreased the proportion of MPA-induced necrotic cell death in both the B cell line Dab-1 (40 to 50% inhibition) and in the T cell line Jurkat (40% inhibition) (Figure 2A) as assessed by the measurements of the cell morphology (flow cytometry analysis using FSC and SSC parameters, see [15]) or the plasma membrane permeability (cell entry of propidium iodide).
At the cellular level, necrosis is characterised by an increased plasma membrane permeability, cell swelling, a decline in protein synthesis and autolysis (Wyllie et al, 1980; Schwartz and Osborne, 1993).
The critical role of caspase-mediated cleavage of cortical and plasma membrane proteins after AMN disorganization was demonstrated because the concomitant addition of colchicine and Z-VAD blocked protein cleavage and significantly prevented plasma membrane permeability, cell detachment, LDH release, calcium and sodium overload and bioenergetics failure.
Hence, several factors might explain this gradation such as cell division, cellular differentiation, shifts in membrane permeability, cell elongation, and a wide range of gene expression in association with changes in concentration of endogenous plant growth regulators and secondary metabolites [ 26].
The detection of protein S-100 in serum, which is exclusively specific for cytoplasma of astroglial and Schwann cells in association with extracorporeal perfusion, may quite possibly indicate either an increased cell membrane permeability or cell injury.
We observed HMGB1 nuclear release and secretion in the treated RPE cells, consistent with an increase in membrane permeability and cell rupture in those cells.
Polymyxins are cationic polypeptides that bind to lipopolysaccharide of the Gram-negative bacteria and increase their membrane permeability and cell death.
The PI staining was characteristic of membrane permeability and cell death.
Changes in the cytoskeletal network beneath the plasma membrane (as α-spectrin cleavage by caspases after AMN depolimerization) may contribute to increase in membrane permeability during cell injury/death.
Aquaporins regulate cell membrane permeability in most cell types.
