Evidence map›Paper›PMID 23547236›Full record

ArticleHypertension (Dallas, Tex. : 1979)2013

Proximal tubule angiotensin AT2 receptors mediate an anti-inflammatory response via interleukin-10: role in renoprotection in obese rats.

Isha Dhande, Quaisar Ali, Tahir Hussain

Open access · greenAbstract readComparative Study
In one paragraph

Article in Hypertension (Dallas, Tex. : 1979), 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 52 papers.

0numbers the graph read from it
0cells of the map it votes in
52citing papers in PubMed
8.3field-weighted citation impact, top 2% 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

52 citing papers in PubMed, 87 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Article
  5. Macrophage angiotensin ATAmerican journal of physiology. Renal physiology · 2023
    Article
  6. Article
  7. Article
  8. Article
  9. The Angiotensin ATPharmacological reviews · 2022
    Review
  10. Article
  11. Review
  12. Article
  13. Review
  14. Review
  15. Immunity and Hypertension.Acta physiologica (Oxford, England) · 2021
    Review
  16. Article
  17. Review
  18. Review
  19. Article
  20. Review
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

3 authors at 1 institution in 1 country.

Isha DhandeDepartment of Pharmacological and Pharmaceutical Sciences, Rm 521 Science and Research Bldg 2, University of Houston, Houston, TX 77004, USA.
Quaisar Ali
Tahir Hussain
Auburn University · US

Funding

Renal Angiotensin ll Receptor Function in ObesityR01DK061578 · NIDDK · UNIVERSITY OF HOUSTON · PI HUSSAIN, TAHIR · 2003 to 2020
$4.3M
NIDDK NIH HHS R01 DK061578NIDDK NIH HHS R01 DK61578
6 · The paper itself

Abstract

The angiotensin type 2 receptor (AT2R) has been shown to lower inflammation in the kidney. However, the role of the anti-inflammatory cytokine interleukin (IL)-10 in AT2R-mediated attenuation of inflammation has not been elucidated. We hypothesized that AT2R activation is renoprotective by directly increasing the levels of anti-inflammatory cytokine IL-10 in the kidney via nitric oxide (NO) signaling. For in vitro studies, the human proximal tubule epithelial cell-line (human kidney-2 [HK-2]) was activated with lipopolysaccharide (10 μg/mL) and AT2R agonist C21 (1 μmol/L) for 24 hours, and media cytokine levels were assessed. Lipopolysaccharide modestly downregulated AT2R expression. Treatment with C21 lowered lipopolysaccharide-induced levels of both tumor necrosis factor-α and IL-6, but increased IL-10 levels. Treatment with neutralizing IL-10 antibody (1 μg/mL) or NO synthase inhibitor L-NAME (1 mmol/L) abolished this effect. For in vivo studies, prehypertensive obese Zucker rats and age-matched lean Zucker rats were treated for 2 weeks with C21 (300 μg/kg per day, IP) and AT2R antagonist (PD123319; 50 μg/kg per minute, SC infusion). Compared with lean Zucker rats, obese Zucker rats had higher levels of renal AT2R expression, tumor necrosis factor-α, and IL-6. C21 treatment decreased levels of tumor necrosis factor-α by 75% and IL-6 by 60%. Conversely, PD treatment lowered the renal IL-10 levels in obese Zucker rats by ≈60%. Renal morphometry revealed increased mesangial matrix expansion and glomerular macrophage infiltration, which was improved by C21 treatment in obese Zucker rats. Our findings suggest that proximal tubule AT2R activation is anti-inflammatory by increasing IL-10 production, which is largely NO dependent and thus offers renoprotection by preventing early inflammation-induced renal injury in obesity.

Indexed as

AnimalsBlotting, WesternDisease Models, AnimalEnzyme-Linked Immunosorbent AssayHumansInflammationInterleukin-10Kidney DiseasesKidney Tubules, ProximalMaleObesityRatsRats, ZuckerReceptor, Angiotensin, Type 2Interleukin-10Receptor, Angiotensin, Type 2anti-inflammatoryAT2 ReceptorC21interleukin-10nitric oxiderenoprotection

Identifiers

PMID23547236
PMCPMC3709839
OpenAlexW1988502601

What OpenQuestion holds

Textmetadata
LicenceTDM
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.