Evidence map›Paper›PMID 28277743›Full record

ArticleAmerican journal of respiratory cell and molecular biology2017

Obesity-Induced Endoplasmic Reticulum Stress Causes Lung Endothelial Dysfunction and Promotes Acute Lung Injury.

Dilip Shah, Freddy Romero, Zhi Guo, Jianxin Sun, Jonathan Li, Caleb B Kallen, Ulhas P Naik, Ross Summer

RetractedOpen access · greenAbstract readRetracted Publication
In one paragraph

Article in American journal of respiratory cell and molecular biology, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It has been retracted, and should not be counted. Cited by 24 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed, 2 pooled it
3.5field-weighted citation impact, top 7% 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, 2 syntheses or guidelines pooled it, 43 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Article
  4. Article
  5. Review
  6. Review
  7. Article
  8. Article
  9. Pathways to Severe COVID-19 for People with Obesity.Obesity (Silver Spring, Md.) · 2021
    Review
  10. Review
  11. Article
  12. ATF4 Mediates Mitochondrial Unfolded Protein Response in Alveolar Epithelial Cells.American journal of respiratory cell and molecular biology · 2020
    Article
  13. Review
  14. Article
  15. Article
  16. Article
  17. Observational
  18. Adipose tissue quantification and primary graft dysfunction after lung transplantation: The Lung Transplant Body Composition study.The Journal of heart and lung transplantation : the official publication of the International Society for Heart Transplantation · 2019
    Article
  19. Article
  20. Review
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

8 authors at 1 institution in 1 country.

Dilip Shah1 Center for Translational Medicine and Jane and Leonard Korman Lung Center.
Freddy Romero1 Center for Translational Medicine and Jane and Leonard Korman Lung Center.
Zhi Guo1 Center for Translational Medicine and Jane and Leonard Korman Lung Center.
Jianxin Sun1 Center for Translational Medicine and Jane and Leonard Korman Lung Center.
Jonathan Li1 Center for Translational Medicine and Jane and Leonard Korman Lung Center.
Caleb B Kallen2 Department of Obstetrics and Gynecology, and.
Ulhas P Naik3 Cardeza Center for Vascular Biology Research, Thomas Jefferson University, Philadelphia, Pennsylvania.
Ross Summer1 Center for Translational Medicine and Jane and Leonard Korman Lung Center.
Thomas Jefferson University · US

Funding

Adiponectin inhibits activation and injury of lung endotheliumR01HL105490 · NHLBI · THOMAS JEFFERSON UNIVERSITY · PI SUMMER, ROSS S · 2011 to 2015
$1.9M
The anti-inflammatory mRNA-binding protein ZFP36 in Obesity and MetabolismR01DK091841 · NIDDK · THOMAS JEFFERSON UNIVERSITY · PI KALLEN, CALEB BENJAMIN · 2012 to 2016
$1.6M
NHLBI NIH HHS R01 HL105490NIDDK NIH HHS R01 DK091841
6 · The paper itself

Abstract

retractedObesity is a significant risk factor for acute respiratory distress syndrome. The mechanisms underlying this association are unknown. We recently showed that diet-induced obese mice exhibit pulmonary vascular endothelial dysfunction, which is associated with enhanced susceptibility to LPS-induced acute lung injury. Here, we demonstrate that lung endothelial dysfunction in diet-induced obese mice coincides with increased endoplasmic reticulum (ER) stress. Specifically, we observed enhanced expression of the major sensors of misfolded proteins, including protein kinase R-like ER kinase, inositol-requiring enzyme α, and activating transcription factor 6, in whole lung and in primary lung endothelial cells isolated from diet-induced obese mice. Furthermore, we found that primary lung endothelial cells exposed to serum from obese mice, or to saturated fatty acids that mimic obese serum, resulted in enhanced expression of markers of ER stress and the induction of other biological responses that typify the lung endothelium of diet-induced obese mice, including an increase in expression of endothelial adhesion molecules and a decrease in expression of endothelial cell-cell junctional proteins. Similar changes were observed in lung endothelial cells and in whole-lung tissue after exposure to tunicamycin, a compound that causes ER stress by blocking N-linked glycosylation, indicating that ER stress causes endothelial dysfunction in the lung. Treatment with 4-phenylbutyric acid, a chemical protein chaperone that reduces ER stress, restored vascular endothelial cell expression of adhesion molecules and protected against LPS-induced acute lung injury in diet-induced obese mice. Our work indicates that fatty acids in obese serum induce ER stress in the pulmonary endothelium, leading to pulmonary endothelial cell dysfunction. Our work suggests that reducing protein load in the ER of pulmonary endothelial cells might protect against acute respiratory distress syndrome in obese individuals.

Indexed as

Activating Transcription Factor 6Acute Lung InjuryAnimalsCell Adhesion MoleculesDietary FatsDisease SusceptibilityeIF-2 KinaseEndoplasmic Reticulum StressEndoribonucleasesEndothelial CellsFatty AcidsFatty Acids, MonounsaturatedFatty Acids, NonesterifiedLipopolysaccharidesLungMale4-phenylbutyric acidActivating Transcription Factor 6Atf6 protein, mouseCell Adhesion MoleculesDietary FatseIF-2 KinaseEndoribonucleasesErn1 protein, mouseFatty AcidsFatty Acids, MonounsaturatedFatty Acids, NonesterifiedLipopolysaccharidesPhenylbutyratesProtein Serine-Threonine KinasesTunicamycinacute lung injuryacute respiratory distress syndromeendoplasmic reticulum stressobesitysaturated fatty acid

Identifiers

PMID28277743
PMCPMC5576582
OpenAlexW2594282077

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.