Evidence map›Paper›PMID 22345580›Full record

ArticleAmerican journal of respiratory and critical care medicine2014

Dysregulation of claudin-5 in HIV-induced interstitial pneumonitis and lung vascular injury. Protective role of peroxisome proliferator-activated receptor-γ.

Hong Li, Sangya Singh, Raghava Potula, Yuri Persidsky, Georgette D Kanmogne

Expression of concernOpen access · greenAbstract read
In one paragraph

Article in American journal of respiratory and critical care medicine, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It carries an expression of concern. Cited by 24 papers.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed
0.7field-weighted citation impact, top 31% 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

24 citing papers in PubMed, 29 citations in OpenAlex.

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  2. Andrographolide Attenuates Sepsis-Induced Acute Lung InjuryEndocrine, metabolic & immune disorders drug targets · 2026
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  16. Review
  17. Article
  18. Article
  19. Tight junctions in pulmonary epithelia during lung inflammation.Pflugers Archiv : European journal of physiology · 2017
    Review
  20. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

5 authors at 2 institutions in 1 country.

Hong Li1 Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, Nebraska; and.
Sangya Singh
Raghava Potula
Yuri Persidsky
Georgette D Kanmogne
University of Nebraska Medical Center · USTemple University · US

Funding

BBB Tight Junctions During HIV-1 dementiaR01MH065151 · NIMH · UNIVERSITY OF NEBRASKA MEDICAL CENTER · PI PERSIDSKY, YURI · 2002 to 2016
$5.9M
CNS injury caused by HIV-1 and alcohol: Protective effects of CB2 activationR37AA015913 · NIAAA · TEMPLE UNIV OF THE COMMONWEALTH · PI PERSIDSKY, YURI · 2010 to 2019
$3.6M
Mechanism of immune dysregulation secondary to methamphetamine abuse.R01DA031064 · NIDA · TEMPLE UNIV OF THE COMMONWEALTH · PI POTULA, RAGHAVA · 2010 to 2014
$1.8M
PPAR-gamma-mediated neuroprotection against HIV-1 and alcohol CNS injuryR01AA015913 · NIAAA · UNIVERSITY OF NEBRASKA MEDICAL CENTER · PI PERSIDSKY, YURI · 2005 to 2009
$1.6M
Blood brain barrier immune compromise in NeuroAIDSR01MH081780 · NIMH · UNIVERSITY OF NEBRASKA MEDICAL CENTER · PI KANMOGNE, GEORGETTE D. · 2008 to 2012
$1.5M
NIAAA NIH HHS R01 AA015913NIAAA NIH HHS R37 AA015913NIDA NIH HHS R01 DA031064NIMH NIH HHS R01 MH065151NIMH NIH HHS R01 MH081780NIMH NIH HHS R01MH081780NIMH NIH HHS R01MH65151
6 · The paper itself

Abstract

rationaleHIV-1-induced interstitial pneumonitis (IP) is a serious complication of HIV-1 infection, characterized by inflammation and cellular infiltration in lungs, often leading to respiratory failure and death. The barrier function of the pulmonary endothelium is caused in part by tight junction (TJ) proteins, such as claudin-5. Peroxisome proliferator-activated receptor (PPAR)-γ is expressed in lung tissues and regulates inflammation. We hypothesize that HIV-1 induces vascular lung injury, and HIV-1-mediated damage of the pulmonary endothelium and IP is associated with dysregulation of PPAR-γ.

objectivesInvestigate the effects of HIV-1 infection on the pulmonary microvasculature and the modulatory effects of the PPAR-γ ligands.

methodsUsing human lung tissues, we demonstrated down-regulation of claudin-5 (marker of pulmonary barrier integrity), down-regulation of PPAR-γ transcription, and expression in lung tissues of HIV-1-infected humans with IP. MEASUREMENTS AND MAIN

resultsHuman lung microvascular endothelial cells expressed the TJ proteins claudin-5, ZO-1, and ZO-2; HIV-1 decreased TJ proteins expression and induced nuclear factor-κB promoter activity, which was reversed by PPAR-γ agonist. Using two murine HIV/AIDS models, we demonstrated decreased claudin-5 expression and increased macrophage infiltration in the lungs of HIV-1-infected animals. Activation of PPAR-γ prevented HIV-1-induced claudin-5 down-regulation and significantly reduced viremia and pulmonary macrophage infiltration.

conclusionsHIV-induced IP is associated with injury to the lung vascular endothelium, with decreased TJ and PPAR-γ expression, and increased pulmonary macrophage infiltration. PPAR-γ ligands abrogated these effects. Thus, regulation of PPAR-γ can be a therapeutic approach against HIV-1-induced vascular damage and IP in infected humans. Removal of Expression of Concern: Issues leading to the previous expression of concern for this article have been resolved after further revisions and editorial review. No further concerns exist.

Indexed as

Acquired Immunodeficiency SyndromeAdultAgedAnimalsBronchopneumoniaCase-Control StudiesClaudin-5Disease Models, AnimalDown-RegulationEndothelium, VascularFemaleHIV-1HumansImmunocompromised HostLungLung Diseases, InterstitialClaudin-5PPAR gammaTight Junction ProteinsHIV/AIDSmacrophagesPBMCpulmonary endotheliumtight junction proteins

Identifiers

PMID22345580
PMCPMC4226025
OpenAlexW2122587376

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.