Evidence map›Paper›PMID 35599331›Full record

ArticleJournal of neuroinflammation2022

A breakdown in microglial metabolic reprogramming causes internalization dysfunction of α-synuclein in a mouse model of Parkinson's disease.

Jia Lu, Chenfei Wang, Xin Cheng, Ruizhi Wang, Xuehan Yan, Pengju He, Hongzhuan Chen, Zhihua Yu

Open access · goldAbstract read
In one paragraph

Article in Journal of neuroinflammation, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 36 papers.

0numbers the graph read from it
0cells of the map it votes in
36citing papers in PubMed
8.1field-weighted citation impact, top 2% 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

36 citing papers in PubMed, 75 citations in OpenAlex.

  1. Microglia-targetedMaterials today. Bio · 2026
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  9. Cuproptosis-associated genesFrontiers in immunology · 2026
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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

8 authors at 1 institution in 1 country.

Jia Lu *Department of Pharmacology and Chemical Biology, Shanghai Jiao Tong University School of Medicine, 280 South Chongqing Road, Shanghai, 200025, China.
Chenfei Wang *Department of Pharmacology and Chemical Biology, Shanghai Jiao Tong University School of Medicine, 280 South Chongqing Road, Shanghai, 200025, China.
Xin ChengShanghai Jiao Tong University School of Medicine, Shanghai, 200025, China.
Ruizhi WangShanghai Jiao Tong University School of Medicine, Shanghai, 200025, China.
Xuehan YanShanghai Jiao Tong University School of Medicine, Shanghai, 200025, China.
Pengju HeShanghai Jiao Tong University School of Medicine, Shanghai, 200025, China.
Hongzhuan ChenDepartment of Pharmacology and Chemical Biology, Shanghai Jiao Tong University School of Medicine, 280 South Chongqing Road, Shanghai, 200025, China. yaoli@shsmu.edu.cn.
Zhihua YuDepartment of Pharmacology and Chemical Biology, Shanghai Jiao Tong University School of Medicine, 280 South Chongqing Road, Shanghai, 200025, China. yuzhihua@shsmu.edu.cn.ORCID http://orcid.org/0000-0003-4993-0199
Shanghai Jiao Tong University · CN

Funding

National Natural Science Foundation of China 81773699National Natural Science Foundation of China 82173791
6 · The paper itself

Abstract

backgroundThe α-synuclein released by neurons activates microglia, which then engulfs α-synuclein for degradation via autophagy. Reactive microglia are a major pathological feature of Parkinson's disease (PD), although the exact role of microglia in the pathogenesis of PD remains unclear. Transient receptor potential vanilloid type 1 (TRPV1) channels are nonselective cation channel protein that have been proposed as neuroprotective targets in neurodegenerative diseases.

methodsUsing metabolic profiling, microglia energy metabolism was measured including oxidative phosphorylation and aerobic glycolysis. The mRFP-GFP-tagged LC3 reporter was introduced to characterize the role of TRPV1 in microglial autophagy. α-synuclein preformed fibril (PFF) TRPV1

resultsWe found that acute exposure to PFF caused microglial activation as a result of metabolic reprogramming from oxidative phosphorylation to aerobic glycolysis via the AKT-mTOR-HIF-1α pathway. Activated microglia eventually reached a state of chronic PFF-tolerance, accompanied by broad defects in energy metabolism. We showed that metabolic boosting by treatment with the TRPV1 agonist capsaicin rescued metabolic impairments in PFF-tolerant microglia and also defects in mitophagy caused by disruption of the AKT-mTOR-HIF-1α pathway. Capsaicin attenuated phosphorylation of α-synuclein in primary neurons by boosting phagocytosis in PFF-tolerant microglia in vitro. Finally, we found that behavioral deficits and loss of dopaminergic neurons were accelerated in the PFF TRPV1

conclusionThe findings suggest that modulating microglial metabolism might be a new therapeutic strategy for PD.

Indexed as

MicrogliaParkinson DiseaseTRPV Cation Channelsalpha-SynucleinAnimalsCapsaicinDisease Models, AnimalDopaminergic NeuronsMiceProto-Oncogene Proteins c-aktTOR Serine-Threonine Kinasesalpha-SynucleinCapsaicinProto-Oncogene Proteins c-aktTOR Serine-Threonine KinasesTRPV1 protein, mouseTRPV Cation ChannelsAutophagyCapsaicinMicrogliaTRPV1α-Synuclein

Identifiers

PMID35599331
PMCPMC9124408
OpenAlexW4281261964

What OpenQuestion holds

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LicenceCC BY
Read underepoch 390

Registered trials

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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.