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Home Urology / Nephrology News

Common congenital defect a prickly problem for the kidney

by Urology Today
September 8, 2020
in Urology / Nephrology News
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One of the most common congenital defects in humans — it is detected in approximately 0.5% of fetuses analyzed by routine antenatal sonography — is a kidney abnormality known as hydronephrosis. Hydronephrosis arises because the flow of urine from the kidney to the bladder is impeded. By studying kidney development in mice, Norman Rosenblum and colleagues, at the Hospital for Sick Children, Toronto, have identified a new cellular mechanism underlying hydronephrosis, something that they hope might lead to better therapeutics for the condition and improved diagnosis of its severity.

Rosenblum and colleagues found that the Hedgehog signaling pathway controls the development of two populations of cells required for the initiation and transmission of coordinated contractions of the tract that links the kidney and the bladder (the ureter). Thus, genetic mutations in mice that disrupted the Hedgehog signaling pathway impaired urine flow from the kidney to the bladder, causing hydronephrosis. As noted by both the authors and Doris Herzlinger, in an accompanying commentary, these data have the potential to lead to the development of novel therapeutics for the treatment of hydronephrosis. Further, they suggest that it might be possible to develop genetic tests that discriminate between cases of hydronephrosis that spontaneously resolve (as approximately 70-80% of cases do) and those that do not.

###

TITLE: GLI3 repressor controls functional development of the mouse ureter

AUTHOR CONTACT:
Norman D. Rosenblum
Hospital for Sick Children, Toronto, Ontario, Canada.
Phone: 416.813.5667; Fax: 416.813.6271; E-mail: .(JavaScript must be enabled to view this email address).

View this article at: http://www.jci.org/articles/view/45523?key=09e8c4b6e3da88275a33

ACCOMPANYING COMMENTARY
TITLE: Upper urinary tract pacemaker cells join the GLI club

AUTHOR CONTACT:
Doris Herzlinger
Cornell University Medical College, New York, New York, USA.
Phone: 212.746.6377; Fax: 212.746.8690; E-mail: .(JavaScript must be enabled to view this email address).

View this article at: http://www.jci.org/articles/view/46400?key=0a5cc11ee8d53fbb71cb

###

Contact: Ushma Neill
.(JavaScript must be enabled to view this email address)
734-546-5241
Journal of Clinical Investigation

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