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JCI table of contents: March 23, 2009
Date:3/23/2009

p>ACCOMPANYING COMMENTARY
TITLE: The voltage-gated K+ channel subunit, Kv1.1, links kidney and brain

AUTHOR CONTACT:
David H. Ellison
Oregon Health & Science University, Portland, Oregon, USA.
Phone: (503) 494 7159; Fax: (503) 494-5330; E-mail: ellisond@ohsu.edu.

View the PDF of this article at: https://www.the-jci.org/article.php?id=38835


NEPHROLOGY: Protective role for kallikrein proteins in kidney disease

A team of researchers, at the University of Texas Southwestern Medical Center, Dallas, and Uppsala University, Sweden, has shed new light on several forms of the kidney disease known as nephritis. Specifically, the data indicate a protective role for kallikrein proteins in anti-GBM antibodyinduced nephritis (a mouse model of Goodpasture syndrome) and spontaneous lupus nephritis in mice and humans.

In the study, which was led by Chandra Mohan, Edward Wakeland, and Marta Alarcn-Riquelme, kallikrein genes were found to be underexpressed in the kidneys of mouse strains sensitive to anti-GBM antibodyinduced nephritis. Conversely, mouse strains that upregulated kallikreins in the kidneys showed fewer signs of disease. Consistent with this, antagonizing the kallikrein pathway enhanced disease and agonists dampened disease severity. As both human systemic lupus erythematosus and spontaneous lupus nephritis were found to be associated with kallikrein genes, the authors conclude that kallikreins are protective disease-associated genes in anti-GBM antibodyinduced nephritis and lupus. In an accompanying commentary, Claudio Ponticelli and Pier Luigi Meroni, at IRCCS Istituto Clinico Humanitas, Italy, discuss this possibility and suggest alternative roles for kallikreins in lupus nephritis.

TITLE: Kallikrein genes are associated with lupus and glomerular basement membranespecific antib
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Contact: Karen Honey
press_releases@the-jci.org
215-573-1850
Journal of Clinical Investigation
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