Evidence map›Paper›PMID 35473441›Full record

ArticleAutophagy2023

Increased LCN2 (lipocalin 2) in the RPE decreases autophagy and activates inflammasome-ferroptosis processes in a mouse model of dry AMD.

Urvi Gupta, Sayan Ghosh, Callen T Wallace, Peng Shang, Ying Xin, Archana Padmanabhan Nair, Meysam Yazdankhah, Anastasia Strizhakova, Mark A Ross, Haitao Liu and 16 more

Open access · greenAbstract read
In one paragraph

Article in Autophagy, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 134 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
134citing papers in PubMed, 1 pooled it
14.0field-weighted citation impact, top 1% 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

134 citing papers in PubMed, 1 synthesis or guideline pooled it, 182 citations in OpenAlex.

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74 more citing papers are in PubMed but not listed here.

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

26 authors at 6 institutions in 3 countries.

Urvi GuptaDepartment of Ophthalmology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA.
Sayan GhoshDepartment of Ophthalmology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA.
Callen T WallaceDepartment of Cell Biology and Center for Biologic Imaging, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA.ORCID 0000-0001-6852-4976
Peng ShangDepartment of Ophthalmology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA.
Ying XinDepartment of Ophthalmology, Wilmer Eye Institute, The Johns Hopkins University School of Medicine, Baltimore, MD, USA.ORCID 0000-0002-1856-0482
Archana Padmanabhan NairGROW Laboratory, Narayana Nethralaya Foundation, Bengaluru, India.
Meysam YazdankhahDepartment of Ophthalmology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA.
Anastasia StrizhakovaDepartment of Ophthalmology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA.
Mark A RossDepartment of Cell Biology and Center for Biologic Imaging, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA.
Haitao LiuDepartment of Ophthalmology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA.ORCID 0000-0002-3757-779X
Stacey HoseDepartment of Ophthalmology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA.
Nadezda A StepichevaDepartment of Ophthalmology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA.
Olivia ChowdhuryDepartment of Ophthalmology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA.
Mihir NemaniDepartment of Ophthalmology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA.
Vishnu MaddipatlaDepartment of Ophthalmology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA.
Rhonda GrebeDepartment of Ophthalmology, Wilmer Eye Institute, The Johns Hopkins University School of Medicine, Baltimore, MD, USA.ORCID 0000-0003-1841-9777
Manjula DasMolecular Immunology, Mazumdar Shaw Medical Foundation, Bengaluru, India.
Kira L LathropDepartment of Ophthalmology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA.
José-Alain SahelDepartment of Ophthalmology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA.ORCID 0000-0002-4831-1153
J Samuel ZiglerDepartment of Ophthalmology, Wilmer Eye Institute, The Johns Hopkins University School of Medicine, Baltimore, MD, USA.
Jiang QianDepartment of Ophthalmology, Wilmer Eye Institute, The Johns Hopkins University School of Medicine, Baltimore, MD, USA.
Arkasubhra GhoshGROW Laboratory, Narayana Nethralaya Foundation, Bengaluru, India.
Yuri SergeevNational Eye Institute, National Institutes of Health, Bethesda, MD, USA.
James T HandaDepartment of Ophthalmology, Wilmer Eye Institute, The Johns Hopkins University School of Medicine, Baltimore, MD, USA.
Claudette M St CroixDepartment of Cell Biology and Center for Biologic Imaging, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA.
Debasish SinhaDepartment of Ophthalmology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA.
University of Pittsburgh · USJohns Hopkins University · USNarayana Nethralaya · INCentre National de la Recherche Scientifique · FRMazumdar Shaw Medical Foundation · INNational Institutes of Health · US

Funding

Virus Production and Manipulation of Protein/Gene Expression ModuleP30EY008098 · NEI · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI Yuanyuan Chen · 1989 to 2026
$17.8M
Proteins From Hereditary Eye Diseases: In-silico and Experimental StudiesZIAEY000476 · NEI · NATIONAL EYE INSTITUTE · PI SERGEEV, YURI · 2009 to 2025
$16.8M
A novel bA3/A1-crystallin gene mutation results in persistent fetal vasculatureR01EY019037 · NEI · JOHNS HOPKINS UNIVERSITY · PI SINHA, DEBASISH · 2008 to 2015
$4.1M
Interdisciplinary Visual Sciences (IVS) Traininig ProgramT32EY017271 · NEI · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI Marlene Behrmann, Paul R. Kinchington · 2008 to 2026
$3.6M
Targeting lysosome/RPE heterogeneity in AMD pathobiology as a novel therapyR01EY031594 · NEI · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI HANDA, JAMES T, SINHA, DEBASISH · 2021 to 2024
$2.4M
NEI NIH HHS P30 EY008098NEI NIH HHS R01 EY019037NEI NIH HHS R01 EY031594NEI NIH HHS T32 EY017271
6 · The paper itself

Abstract

In dry age-related macular degeneration (AMD), LCN2 (lipocalin 2) is upregulated. Whereas LCN2 has been implicated in AMD pathogenesis, the mechanism remains unknown. Here, we report that in retinal pigmented epithelial (RPE) cells, LCN2 regulates macroautophagy/autophagy, in addition to maintaining iron homeostasis. LCN2 binds to ATG4B to form an LCN2-ATG4B-LC3-II complex, thereby regulating ATG4B activity and LC3-II lipidation. Thus, increased LCN2 reduced autophagy flux. Moreover, RPE cells from

Indexed as

FerroptosisMacular DegenerationAnimalsAntibodies, MonoclonalAutophagyHumansInflammasomesLipocalin-2MiceMice, Inbred NODMice, SCIDNucleotidyltransferasesAntibodies, MonoclonalInflammasomesLCN2 protein, humanLcn2 protein, mouseLipocalin-2NucleotidyltransferasesATG4Bautophagydry age-related macular degenerationferroptosisinflammasomeironlipocalin 2monoclonal/neutralizing antibodyoxidative stressretinal pigmented epithelial cells

Identifiers

PMID35473441
PMCPMC9809950
OpenAlexW4224944724

What Socratic 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 Socratic graph.