What is the blood-brain barrier (not)?

Bechmann, Ingo, Galea, Ian and Perry, V. Hugh (2007) What is the blood-brain barrier (not)? Trends in immunology, 28, (1), 5-11. (doi:10.1016/j.it.2006.11.007).

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Original Publication URL: http://dx.doi.org/10.1016/j.it.2006.11.007

Description/Abstract

In 1900, summarizing his experiments with toxins and Ehrlich's earlier observations with intravital dyes, the Berlin physician Lewandowski concluded that "brain capillaries must hold back certain molecules". Illustrating this phenomenon with persuasive beauty, the subsequently evolving metaphor of a 'Bluthirnschranke' (blood-brain barrier, BBB) gained wide acceptance, but the extension of its meaning into the context of inhibiting leukocyte recruitment into the brain is imprecise. On the basis of the original work by Ehrlich, Lewandowski and Goldmann we re-define the BBB as a capillary barrier for solutes, and clarify that leukocyte recruitment requires two differentially regulated steps: (i) passage across postcapillary venules into Virchow-Robin spaces, and (ii) subsequent progression across the glia limitans into the neuropil. We propose that the second step frequently involves perivascular antigen-recognition and the induction of ectoenzymes, for example matrix metalloproteinases (MMPs).

Item Type:	Article
ISSNs:	1471-4906 (print)
Related URLs:	http://www.ncbi.nlm.nih.gov/pu...d/17140851 http://cat.inist.fr/?aModele=a...t=18392050 http://dx.doi.org/10.1016/j.it...006.11.007
Subjects:	R Medicine > RC Internal medicine > RC0321 Neuroscience. Biological psychiatry. Neuropsychiatry Q Science > QR Microbiology > QR180 Immunology Q Science > QP Physiology
Divisions:	University Structure - Pre August 2011 > School of Biological Sciences University Structure - Pre August 2011 > School of Medicine
Item ID:	56604
Date Deposited:	11 Aug 2008
Last Modified:	12 May 2013 01:16
Contributors:	Bechmann, Ingo (Author) Galea, Ian (Author) Perry, V. Hugh (Author)
Date:	1 January 2007
Status:	Published
Contact Email Address:	I.Galea@soton.ac.uk
URI:	http://eprints.soton.ac.uk/id/eprint/56604

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