Evidence map›Paper›PMID 26010231›Full record

ArticleAging cell2015

MARCKS-dependent mucin clearance and lipid metabolism in ependymal cells are required for maintenance of forebrain homeostasis during aging.

Nagendran Muthusamy, Laura J Sommerville, Adam J Moeser, Deborah J Stumpo, Philip Sannes, Kenneth Adler, Perry J Blackshear, Jill M Weimer, H Troy Ghashghaei

Open access · goldAbstract read
In one paragraph

Article in Aging cell, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
1.7field-weighted citation impact, top 16% 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

20 citing papers in PubMed, 33 citations in OpenAlex.

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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

9 authors at 3 institutions in 1 country.

Nagendran MuthusamyDepartment of Molecular Biomedical Sciences, College of Veterinary Medicine, North Carolina State University, Raleigh, NC, 27607, USA.
Laura J SommervilleDepartment of Molecular Biomedical Sciences, College of Veterinary Medicine, North Carolina State University, Raleigh, NC, 27607, USA.
Adam J MoeserDepartment of Population Health and Pathobiology, College of Veterinary Medicine, North Carolina State University, Raleigh, NC, 27607, USA.
Deborah J StumpoLaboratory of Signal Transduction, National Institute of Environmental Health Sciences, Durham, NC, 27709, USA.
Philip SannesDepartment of Molecular Biomedical Sciences, College of Veterinary Medicine, North Carolina State University, Raleigh, NC, 27607, USA.
Kenneth AdlerDepartment of Molecular Biomedical Sciences, College of Veterinary Medicine, North Carolina State University, Raleigh, NC, 27607, USA.
Perry J BlackshearLaboratory of Signal Transduction, National Institute of Environmental Health Sciences, Durham, NC, 27709, USA.
Jill M WeimerSanford Research, Children's Health Research and Department of Pediatric, University of South Dakota Sanford School of Medicine, Sioux Falls, SD, 57104, USA.
H Troy GhashghaeiDepartment of Molecular Biomedical Sciences, College of Veterinary Medicine, North Carolina State University, Raleigh, NC, 27607, USA.
North Carolina State University · USNational Institute of Environmental Health Sciences · USUniversity of South Dakota · US

Funding

TTP and related proteins in the regulation of gene expressionZIAES090080 · NIEHS · NATIONAL INSTITUTE OF ENVIRONMENTAL HEALTH SCIENCES · PI BLACKSHEAR, PERRY J · 2009 to 2025
$52.6M
Yeast 2 HybridP20GM103620 · NIGMS · SANFORD RESEARCH/USD · PI ROUX, KYLE J · 2013 to 2023
$24.2M
Neuro-Immune Mechanisms in Early Life Stress-Induced Gastrointestinal DiseaseR01HD072968 · NICHD · NORTH CAROLINA STATE UNIVERSITY RALEIGH · PI MOESER, ADAM, ROBISON, ALFRED J · 2013 to 2023
$3.8M
Transcriptional regulation of aging in the adult neural stem cell nicheR01NS062182 · NINDS · NORTH CAROLINA STATE UNIVERSITY RALEIGH · PI GHASHGHAEI, HOOMAN TROY · 2010 to 2014
$1.6M
NICHD NIH HHS R01 HD072968NIGMS NIH HHS P20 GM103620NIGMS NIH HHS P20GM103620NINDS NIH HHS R01 NS062182NINDS NIH HHS R01NS062182
6 · The paper itself

Abstract

Ependymal cells (ECs) form a barrier responsible for selective movement of fluids and molecules between the cerebrospinal fluid and the central nervous system. Here, we demonstrate that metabolic and barrier functions in ECs decline significantly during aging in mice. The longevity of these functions in part requires the expression of the myristoylated alanine-rich protein kinase C substrate (MARCKS). Both the expression levels and subcellular localization of MARCKS in ECs are markedly transformed during aging. Conditional deletion of MARCKS in ECs induces intracellular accumulation of mucins, elevated oxidative stress, and lipid droplet buildup. These alterations are concomitant with precocious disruption of ependymal barrier function, which results in the elevation of reactive astrocytes, microglia, and macrophages in the interstitial brain tissue of young mutant mice. Interestingly, similar alterations are observed during normal aging in ECs and the forebrain interstitium. Our findings constitute a conceptually new paradigm in the potential role of ECs in the initiation of various conditions and diseases in the aging brain.

Indexed as

HomeostasisLipid MetabolismAgingAnimalsEpendymaIntracellular Signaling Peptides and ProteinsMembrane ProteinsMiceMucinsMyristoylated Alanine-Rich C Kinase SubstrateOxidative StressProsencephalonIntracellular Signaling Peptides and ProteinsMarcks protein, mouseMembrane ProteinsMucinsMyristoylated Alanine-Rich C Kinase Substrateagingbarrier functioncerebral cortexClca3ependymal cellslipid dropletsmucinoxidative stress

Identifiers

PMID26010231
PMCPMC4568964
OpenAlexW2123544560

What OpenQuestion holds

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LicenceCC BY
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.