Evidence map›Paper›PMID 22205228›Full record

ArticleAmerican journal of physiology. Renal physiology2012

Collecting duct cells that lack normal cilia have mislocalized vasopressin-2 receptors.

Takamitsu Saigusa, Ryan Reichert, Jennifer Guare, Brian J Siroky, Monika Gooz, Stacy Steele, Robert A Fenton, P Darwin Bell, Robert J Kolb

Abstract read
In one paragraph

Article in American journal of physiology. Renal physiology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
2.2field-weighted citation impact, top 12% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

16 citing papers in PubMed, 28 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. Review
  7. Review
  8. Article
  9. Article
  10. Nedd9 restrains renal cystogenesis in Pkd1-/- mice.Proceedings of the National Academy of Sciences of the United States of America · 2014
    Article
  11. Article
  12. Article
  13. Article
  14. Review
  15. Primary cilia and kidney injury: current research status and future perspectives.American journal of physiology. Renal physiology · 2013
    Review
  16. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors at 4 institutions in 2 countries.

Takamitsu SaigusaDept. of Medicine, Division of Nephrology, Medical University of South Carolina, 173 Ashley Ave., Charleston, SC 29425, USA.
Ryan Reichert
Jennifer Guare
Brian J Siroky
Monika Gooz
Stacy Steele
Robert A Fenton
P Darwin Bell
Robert J Kolb
Aarhus University · DKCincinnati Children's Hospital Medical Center · USMedical University of South Carolina · USRalph H. Johnson VA Medical Center · US

Funding

UAB Recessive PKD Research and Translational Core CenterP30DK074038 · NIDDK · UNIVERSITY OF ALABAMA AT BIRMINGHAM · PI YODER, BRADLEY K. · 2005 to 2019
$16.6M
CELLULAR MECHANISMS--TUBULOGLOMERULAR FEEDBACK SYSTEMR01DK032032 · NIDDK · UNIVERSITY OF ALABAMA AT BIRMINGHAM · PI BELL, PHILLIP DARWIN · 1986 to 2009
$2.5M
Training Grant in Renal Function and DiseaseT32DK007752 · NIDDK · MEDICAL UNIVERSITY OF SOUTH CAROLINA · PI BELL, PHILLIP DARWIN · 1998 to 2013
$1.5M
The role of the primary cilium in glomerular podocyte cellsK01DK075652 · NIDDK · MEDICAL UNIVERSITY OF SOUTH CAROLINA · PI KOLB, ROBERT JOHN · 2008 to 2012
$651k
NIDDK NIH HHS K01 DK075652NIDDK NIH HHS P30 DK074038NIDDK NIH HHS R01 DK32032NIDDK NIH HHS T32 DK007752
6 · The paper itself

Abstract

Polycystic kidney disease (PKD) is a ciliopathy characterized by renal cysts and hypertension. These changes are presumably due to altered fluid and electrolyte transport in the collecting duct (CD). This is the site where vasopressin (AVP) stimulates vasopressin-2 receptor (V2R)-mediated aquaporin-2 (AQP2) insertion into the apical membrane. Since cysts frequently occur in the CD, we studied V2R and AQP2 trafficking and function in CD cell lines with stunted and normal cilia [cilia (-), cilia (+)] derived from the orpk mouse (hypomorph of the Tg737/Ift88 gene). Interestingly, only cilia (-) cells grown on culture dishes formed domes after apical AVP treatment. This observation led to our hypothesis that V2R mislocalizes to the apical membrane in the absence of a full-length cilium. Immunofluorescence indicated that AQP2 localizes to cilia and in a subapical compartment in cilia (+) cells, but AQP2 levels were elevated in both apical and basolateral membranes in cilia (-) cells after apical AVP treatment. Western blot analysis revealed V2R and glycosylated AQP2 in biotinylated apical membranes of cilia (-) but not in cilia (+) cells. In addition, apical V2R was functional upon apical desmopressin (DDAVP) treatment by demonstrating increased cAMP, water transport, and benzamil-sensitive equivalent short-circuit current (I(sc)) in cilia (-) cells but not in cilia (+) cells. Moreover, pretreatment with a PKA inhibitor abolished DDAVP stimulation of I(sc) in cilia (-) cells. Thus we propose that structural or functional loss of cilia leads to abnormal trafficking of AQP2/V2R leading to enhanced salt and water absorption. Whether such apical localization contributes to enhanced fluid retention and hypertension in PKD remains to be determined.

Indexed as

AnimalsAquaporin 2Cell LineCiliaCyclic AMP-Dependent Protein KinasesIsoquinolinesKidney Tubules, CollectingMicePolycystic Kidney DiseasesReceptors, VasopressinSulfonamidesVasopressinsAqp2 protein, mouseAquaporin 2Cyclic AMP-Dependent Protein KinasesIsoquinolinesN-(2-(4-bromocinnamylamino)ethyl)-5-isoquinolinesulfonamideReceptors, VasopressinSulfonamidesVasopressins

Identifiers

PMID22205228
PMCPMC3340932
OpenAlexW1983230403

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.