Evidence map›Paper›PMID 39747330›Full record

ArticleScientific reports2025

Cytosolic phospholipase A2 in infiltrating monocyte derived macrophages does not impair recovery after spinal cord injury in female mice.

Ethan P Glaser, Timothy J Kopper, William M Bailey, Hassan K Kashif, Reena Kumari, Andrew N Stewart, John C Gensel

Abstract read
In one paragraph

Article in Scientific reports, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
–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

6 citing papers in PubMed.

  1. Article
  2. Arachidonic acid metabolism in spinal cord injury.Journal of advanced research · 2026
    Review
  3. Frontiers in microbiology · 2026
    Article
  4. Review
  5. Article
  6. Comprehensive review on fog collectors for drinking water supply in remote areas.Water science and technology : a journal of the International Association on Water Pollution Research · 2025
    Review
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

7 authors.

Ethan P GlaserDepartment of Physiology, Spinal Cord and Brain Injury Research Center, University of Kentucky College of Medicine, Lexington, KY, 40536, USA.
Timothy J KopperDepartment of Immunology and Microbiology, University of Colorado Anschutz Medical Campus, 12800 E 19th Ave, Aurora, CO, 80045, USA.
William M BaileyDepartment of Physiology, Spinal Cord and Brain Injury Research Center, University of Kentucky College of Medicine, Lexington, KY, 40536, USA.
Hassan K KashifDepartment of Physiology, Spinal Cord and Brain Injury Research Center, University of Kentucky College of Medicine, Lexington, KY, 40536, USA.
Reena KumariDepartment of Physiology, Spinal Cord and Brain Injury Research Center, University of Kentucky College of Medicine, Lexington, KY, 40536, USA.
Andrew N StewartDepartment of Neuroscience, Spinal Cord and Brain Injury Research Center, University of Kentucky College of Medicine, Lexington, KY, 40536, USA.
John C GenselDepartment of Physiology, Spinal Cord and Brain Injury Research Center, University of Kentucky College of Medicine, Lexington, KY, 40536, USA. gensel.1@uky.edu.

Funding

Macrophage Depletion Therapy for Spinal Cord InjuryR01NS116068 · NINDS · UNIVERSITY OF KENTUCKY · PI ALILAIN, WARREN JOSEPH, GENSEL, JOHN C · 2021 to 2025
$3.0M
The Role of Perilipin 2 in Macrophages after Experimental Spinal Cord InjuryF30NS129251 · NINDS · UNIVERSITY OF KENTUCKY · PI GLASER, ETHAN PHARES · 2022 to 2023
$104k
Contributions of Myelin Derived Arachidonic Acid to Macrophage Polarization and Secondary Damage after Spinal Cord InjuryF31NS105443 · NINDS · UNIVERSITY OF KENTUCKY · PI KOPPER, TIMOTHY JOSEPH · 2018 to 2020
$90k
National Institute of Neurological Disorders and Stroke (NINDS) of the National Institutes of Health (NIH) F30NS129251National Institute of Neurological Disorders and Stroke (NINDS) of the National Institutes of Health (NIH) F31NS105443National Institute of Neurological Disorders and Stroke (NINDS) of the National Institutes of Health (NIH) R01NS116068NINDS NIH HHS F30 NS129251NINDS NIH HHS F31 NS105443NINDS NIH HHS R01 NS116068The Craig H. Neilsen Foundation 651996
6 · The paper itself

Abstract

Spinal cord injury (SCI) leads to permanent motor and sensory loss that is exacerbated by intraspinal inflammation and persists months to years after injury. After SCI, monocyte-derived macrophages (MDMs) infiltrate the lesion to aid in myelin-rich debris clearance. During debris clearance, MDMs adopt a proinflammatory phenotype that exacerbates neurodegeneration and hinders recovery. The underlying cause of the lipid-mediated MDM phenotype shift is unclear. Our previous work suggests that cytosolic phospholipase A2 (cPLA2) plays a role in the proinflammatory potentiating effect of myelin on macrophages in vitro. Cytosolic phospholipase A2 (cPLA2) frees arachidonic acid from phospholipids, generating eicosanoids that play an important role in inflammation, immunity, and host defense. cPLA2 is expressed in macrophages along with multiple other cell types after SCI, and cPLA2 inhibition has been reported to both reduce and exacerbate secondary injury pathology recovery. The role of cPLA2 in MDMs after SCI is not fully understood. We hypothesize that cPLA2 activation in MDMs after SCI contributes to secondary injury. Here, we report that cPLA2 plays an important role in the myelin-induced inflammatory macrophage phenotype in vitro using macrophages derived from cPLA2 knockout bone marrow. Furthermore, to investigate the role of cPLA2 in MDMs after SCI, we generated female bone marrow chimeras using cPLA2 knock-out donors and assessed locomotor recovery using the Basso Mouse Scale (BMS), CatWalk gait analysis system, and horizontal ladder task over six weeks. We also evaluated tissue sparing and intralesional axon density six weeks after injury. cPLA2 KO chimeras did not display altered locomotor recovery or tissue pathology after SCI compared to WT chimera controls. These data suggest that although cPLA2 plays a critical role in myelin-mediated potentiation of proinflammatory macrophage activation in vitro, it may not contribute to secondary injury pathology in vivo after SCI.

Indexed as

MacrophagesSpinal Cord InjuriesAnimalsDisease Models, AnimalFemaleMiceMice, Inbred C57BLMice, KnockoutMyelin SheathPhospholipases A2, CytosolicRecovery of FunctionPhospholipases A2, CytosolicCytosolic phospholipase A2InflammationMacrophageMyelinSpinal cord injury

Identifiers

PMID39747330
PMCPMC11696740

What Socratic holds

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LicenceCC BY-NC-ND
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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.