Evidence map›Paper›PMID 40035728›Full record

ArticleInvestigative ophthalmology & visual science2025

Ameboid Microglia as a Scavenger Role in Phagocytosis of Photoreceptor Outer Segment in an Experimental Retinal Detachment Model.

Manjing Cao, Yahan Zhang, Yan Li, Xian Zhang, Mingming Ma

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In one paragraph

Article in Investigative ophthalmology & visual science, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

3 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
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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

5 authors.

Manjing CaoDepartment of Ophthalmology, Shanghai General Hospital (Shanghai First People's Hospital), Shanghai Jiao Tong University School of Medicine, Shanghai, China.
Yahan ZhangDepartment of Ophthalmology, Shanghai General Hospital (Shanghai First People's Hospital), Shanghai Jiao Tong University School of Medicine, Shanghai, China.
Yan LiPrecision Research Center for Refractory Disease, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
Xian ZhangDepartment of Ophthalmology, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China.
Mingming MaDepartment of Ophthalmology, Shanghai General Hospital (Shanghai First People's Hospital), Shanghai Jiao Tong University School of Medicine, Shanghai, China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Purpose: Photoreceptor (PR) death is the ultimate cause of irreversible vision loss in retinal detachment (RD). Previous studies have shown that microglia may have a dual role in RD. Nevertheless, the potential protective effects of microglia on PR are largely unknown. We aimed to uncover the phagocytic role of microglia in RD and propose a new concept to regulate PR survival. Methods: An RD model was conducted by injecting sodium hyaluronate into the subretinal space (SRS) of C57BL/6J wild type mice. Bioinformatics analysis was used to evaluate the highly enriched pathways and terms relating to phagocytosis in human datasets and mouse transcriptomes of RD. The observation of microglial morphology was performed by immunofluorescence through cryosection and flat mount. PLX 3397 was used for microglial ablation. Phagocytosis of the outer segment (OS) by microglia was confirmed by immunofluorescence and hematoxylin and eosin staining. Expression of phagocytic markers in microglia was detected by immunofluorescence of cryosection. The PR survival was measured by TUNEL assay and hematoxylin and eosin staining. The optical coherence tomography (OCT) images through the center of the fovea in twelve patients were obtained to observe the clinic features of IS/OS dynamics after RD. Results: The results showed that OS went through an accumulation-clearance process after RD. Ameboid microglia accumulated in the SRS and engulfed OS. Upregulation of phagocytic markers was observed in subretinal microglia. Depletion of microglia led to failure of OS clearance and retinal ruffling, which had the same characteristics as outer retinal undulation (ORU) in some patients with RD. PR did not benefit from microglial depletion, as no morphology and thickness recovery of PR was observed in the long term. Conclusions: These results elucidate that microglial phagocytosis of OS is a critical process after RD. Insufficient phagocytosis leads to the accumulation of OS in the SRS and PR abnormalities. Appropriate regulation of microglial phagocytosis to remove OS may be a new concept to regulate photoreceptor survival.

Indexed as

MicrogliaPhagocytosisRetinal DetachmentRetinal Photoreceptor Cell Outer SegmentAdultAnimalsDisease Models, AnimalFemaleHumansIn Situ Nick-End LabelingMaleMiceMice, Inbred C57BLMiddle AgedTomography, Optical Coherence

Identifiers

PMID40035728
PMCPMC11892526

What Socratic holds

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LicenceCC BY-NC-ND
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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 Socratic graph.