Adenosine receptor signaling: a key to opening the blood-brain door

Fluids and Barriers of the CNS
Margaret S BynoeDo-Geun Kim

Abstract

The aim of this review is to outline evidence that adenosine receptor (AR) activation can modulate blood-brain barrier (BBB) permeability and the implications for disease states and drug delivery. Barriers of the central nervous system (CNS) constitute a protective and regulatory interface between the CNS and the rest of the organism. Such barriers allow for the maintenance of the homeostasis of the CNS milieu. Among them, the BBB is a highly efficient permeability barrier that separates the brain micro-environment from the circulating blood. It is made up of tight junction-connected endothelial cells with specialized transporters to selectively control the passage of nutrients required for neural homeostasis and function, while preventing the entry of neurotoxic factors. The identification of cellular and molecular mechanisms involved in the development and function of CNS barriers is required for a better understanding of CNS homeostasis in both physiological and pathological settings. It has long been recognized that the endogenous purine nucleoside adenosine is a potent modulator of a large number of neurological functions. More recently, experimental studies conducted with human/mouse brain primary endothelial cells as wel...Continue Reading

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Methods Mentioned

BETA
deamination
FACS
PCR
GTPases
chemical modifications

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