Aims The signalling system of phosphoinositides (PIs) is involved in a number of cell and tissue functions including membrane trafficking, ion channel activity, cell cycle, apoptosis, differentiation and cell and tissue polarity. Recently, a role in cell migration was hypothesised for PI and related molecules including the phosphoinositide-specific phospholipases C (PI-PLCs), main players in PI signalling. The expression of PI-PLCs is tissue-specific and evidence suggests that it varies under different conditions such as tumour progression or cell activation. In order to obtain a complete picture, the expression of all PI-PLC isoforms was analysed in human endothelial cells (EC). Methods Using molecular biology methods (RT-PCR), the expression of PI-PLC isoforms was analysed in human umbilical vein endothelial cells (HUVEC), a widely used experimental model for human EC. Results All the PI-PLC isoforms except PI-PLC beta 1, PI-PLC epsilon and PI-PLC zeta were expressed in HUVEC. Conclusions The growing interest in the complex cascade of events occurring in angiogenesis will provide useful insights for therapeutic strategies. The expression of PI-PLC isoforms in HUVEC is a useful tool for further studies directed to understanding their role in angiogenesis. However, although HUVEC represent a widely used experimental model for human macrovascular EC, limitations remain in that they cannot fully represent the metabolic properties and interactions of the EC distributed in the entire organism.
Expression of phosphoinositide-specific phospholipase C isoforms in human umbilical vein endothelial cells / Lo Vasco, Vincenza Rita; Pacini, Luca; Di Raimo, Tania; D'Arcangelo, D.; Businaro, Rita. - In: JOURNAL OF CLINICAL PATHOLOGY. - ISSN 0021-9746. - 64:10(2011), pp. 911-915. [10.1136/jclinpath-2011-200096]
Expression of phosphoinositide-specific phospholipase C isoforms in human umbilical vein endothelial cells
Vincenza Rita Lo Vasco;
2011
Abstract
Aims The signalling system of phosphoinositides (PIs) is involved in a number of cell and tissue functions including membrane trafficking, ion channel activity, cell cycle, apoptosis, differentiation and cell and tissue polarity. Recently, a role in cell migration was hypothesised for PI and related molecules including the phosphoinositide-specific phospholipases C (PI-PLCs), main players in PI signalling. The expression of PI-PLCs is tissue-specific and evidence suggests that it varies under different conditions such as tumour progression or cell activation. In order to obtain a complete picture, the expression of all PI-PLC isoforms was analysed in human endothelial cells (EC). Methods Using molecular biology methods (RT-PCR), the expression of PI-PLC isoforms was analysed in human umbilical vein endothelial cells (HUVEC), a widely used experimental model for human EC. Results All the PI-PLC isoforms except PI-PLC beta 1, PI-PLC epsilon and PI-PLC zeta were expressed in HUVEC. Conclusions The growing interest in the complex cascade of events occurring in angiogenesis will provide useful insights for therapeutic strategies. The expression of PI-PLC isoforms in HUVEC is a useful tool for further studies directed to understanding their role in angiogenesis. However, although HUVEC represent a widely used experimental model for human macrovascular EC, limitations remain in that they cannot fully represent the metabolic properties and interactions of the EC distributed in the entire organism.Pubblicazioni consigliate
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