Evidence map›Paper›PMID 33130676›Full record

ArticleAmerican journal of nephrology2020

Recovery of Renal Function following Kidney-Specific VEGF Therapy in Experimental Renovascular Disease.

Jason E Engel, Maxx L Williams, Erika Williams, Camille Azar, Erin B Taylor, Gene L Bidwell, Alejandro R Chade

Open access · greenAbstract read
In one paragraph

Article in American journal of nephrology, 2020. 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
1.5field-weighted citation impact, top 14% 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, 26 citations in OpenAlex.

  1. Review
  2. Article
  3. When in doubt, pig it out: a versatile translational platform to study CKD, HFpEF, and CKM syndrome.American journal of physiology. Heart and circulatory physiology · 2025
    Review
  4. Article
  5. Review
  6. Article
  7. Article
  8. Review
  9. Research Progress of Drug Delivery Systems Targeting the Kidneys.Pharmaceuticals (Basel, Switzerland) · 2024
    Review
  10. Article
  11. Review
  12. Article
  13. Article
  14. Novel Drug Delivery Technologies and Targets for Renal Disease.Hypertension (Dallas, Tex. : 1979) · 2022
    Review
  15. Article
  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

7 authors at 2 institutions in 1 country.

Jason E EngelDepartment of Physiology and Biophysics, University of Mississippi Medical Center, Jackson, Mississippi, USA.
Maxx L WilliamsDepartment of Physiology and Biophysics, University of Mississippi Medical Center, Jackson, Mississippi, USA.
Erika WilliamsDepartment of Physiology and Biophysics, University of Mississippi Medical Center, Jackson, Mississippi, USA.
Camille AzarDepartment of Physiology and Biophysics, University of Mississippi Medical Center, Jackson, Mississippi, USA.
Erin B TaylorDepartment of Physiology and Biophysics, University of Mississippi Medical Center, Jackson, Mississippi, USA.
Gene L BidwellDepartment of Neurology, University of Mississippi Medical Center, Jackson, Mississippi, USA.
Alejandro R ChadeDepartment of Physiology and Biophysics, University of Mississippi Medical Center, Jackson, Mississippi, USA, achade@umc.edu.
Jackson Memorial Hospital · USUniversity of Mississippi Medical Center · US

Funding

STRUCTURAL VASCULAR ADAPTATION OF THE MICROCIRCULATIONP01HL051971 · NHLBI · UNIVERSITY OF MISSISSIPPI MEDICAL CENTER · PI RECKELHOFF, JANE F · 1993 to 2018
$39.4M
Role of obesity in preeclamptic pregnancy.P20GM121334 · NIGMS · UNIVERSITY OF MISSISSIPPI MED CTR · PI Pier Paolo Claudio, Babbette LaMarca · 2017 to 2026
$26.4M
The role of leptin in autoimmune-associated hypertensionP20GM104357 · NIGMS · UNIVERSITY OF MISSISSIPPI MED CTR · PI HALL, JOHN E · 2013 to 2022
$23.4M
A Novel Protein Delivery System for Therapy of PreeclampsiaR01HL121527 · NHLBI · UNIVERSITY OF MISSISSIPPI MED CTR · PI BIDWELL, GENE LEFLORE · 2014 to 2023
$4.1M
Microcirculation in Renovascular HypertensionR01HL095638 · NHLBI · UNIVERSITY OF MISSOURI-COLUMBIA · PI CHADE, ALEJANDRO ROBERTO · 2010 to 2021
$3.9M
NHLBI NIH HHS P01 HL051971NHLBI NIH HHS R01 HL095638NHLBI NIH HHS R01 HL121527NIGMS NIH HHS P20 GM104357
6 · The paper itself

Abstract

backgroundChronic renovascular disease (RVD) can lead to a progressive loss of renal function, and current treatments are inefficient. We designed a fusion of vascular endothelial growth factor (VEGF) conjugated to an elastin-like polypeptide (ELP) carrier protein with an N-terminal kidney-targeting peptide (KTP). We tested the hypothesis that KTP-ELP-VEGF therapy will effectively recover renal function with an improved targeting profile. Further, we aimed to elucidate potential mechanisms driving renal recovery.

methodsUnilateral RVD was induced in 14 pigs. Six weeks later, renal blood flow (RBF) and glomerular filtration rate (GFR) were quantified by multidetector CT imaging. Pigs then received a single intrarenal injection of KTP-ELP-VEGF or vehicle. CT quantification of renal hemodynamics was repeated 4 weeks later, and then pigs were euthanized. Ex vivo renal microvascular (MV) density and media-to-lumen ratio, macrophage infiltration, and fibrosis were quantified. In parallel, THP-1 human monocytes were differentiated into naïve macrophages (M0) or inflammatory macrophages (M1) and incubated with VEGF, KTP-ELP, KTP-ELP-VEGF, or control media. The mRNA expression of macrophage polarization and angiogenic markers was quantified (qPCR).

resultsIntrarenal KTP-ELP-VEGF improved RBF, GFR, and MV density and attenuated MV media-to-lumen ratio and renal fibrosis compared to placebo, accompanied by augmented renal M2 macrophages. In vitro, exposure to VEGF/KTP-ELP-VEGF shifted M0 macrophages to a proangiogenic M2 phenotype while M1s were nonresponsive to VEGF treatment.

conclusionsOur results support the efficacy of a new renal-specific biologic construct in recovering renal function and suggest that VEGF may directly influence macrophage phenotype as a possible mechanism to improve MV integrity and function in the stenotic kidney.

Indexed as

AnimalsAtherosclerosisDisease Models, AnimalElastinFemaleGlomerular Filtration RateHumansKidneyMaleMicrovesselsPeptidesRecombinant Fusion ProteinsRecovery of FunctionRenal Artery ObstructionRenal CirculationSus scrofaElastinPeptidesRecombinant Fusion ProteinsVascular Endothelial Growth Factor AVEGFA protein, humanAngiogenesisDrug-delivery technologyMacrophageMicrocirculationRenovascular diseaseVascular endothelial growth factor

Identifiers

PMID33130676
PMCPMC7750286
OpenAlexW3097030153

What OpenQuestion holds

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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.