Conclusion
In summary, the endothelium is a spatially distributed cell layer that displays significant heterogeneity in both structure and function. Endothelial heterogeneity reflects the capacity of the endothelium to meet the diverse needs of the underlying tissues. The endothelium plays an important role in mediating the host response to infection. Not only do endothelial cells express pattern recognition receptors, but they also govern local blood flow and vectorial transport of cells, solutes, and fluids across the vascular wall. The normal response to infection involves activation of endothelial cells without dysfunction. In sepsis, the endothelial response becomes excessive, sustained, and/or disseminated, at which point the activation phenotype poses a liability to the host and may be characterized as dysfunctional. Important goals for the future are to develop reliable diagnostic assays for monitoring the health of the endothelium and to elucidate those components of the endothelial response that are maladaptive and amenable to therapeutic targeting.
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Aird, W.C. (2007). The Role of the Endothelium. In: Abraham, E., Singer, M. (eds) Mechanisms of Sepsis-Induced Organ Dysfunction and Recovery. Update in Intensive Care and Emergency Medicine, vol 44. Springer, Berlin, Heidelberg . https://doi.org/10.1007/3-540-30328-6_14
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