Evidence map›Paper›PMID 27565558›Full record

ArticleJournal of neuroinflammation2016

1-Oleyl-lysophosphatidic acid (LPA) promotes polarization of BV-2 and primary murine microglia towards an M1-like phenotype.

Ioanna Plastira, Eva Bernhart, Madeleine Goeritzer, Helga Reicher, Vishwanath Bhat Kumble, Nora Kogelnik, Andrea Wintersperger, Astrid Hammer, Stefanie Schlager, Katharina Jandl and 4 more

Open access · goldAbstract read
In one paragraph

Article in Journal of neuroinflammation, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 64 papers.

0numbers the graph read from it
0cells of the map it votes in
64citing papers in PubMed
3.6field-weighted citation impact, top 7% 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

64 citing papers in PubMed, 115 citations in OpenAlex.

  1. Article
  2. Lysophosphatidic Acid Receptor 5 (LPAInternational journal of molecular sciences · 2026
    Article
  3. Article
  4. Article
  5. Review
  6. Review
  7. Article
  8. Article
  9. Non-saponin fromJournal of ginseng research · 2025
    Article
  10. Article
  11. MgSOFrontiers in nutrition · 2025
    Article
  12. Article
  13. Article
  14. Article
  15. Review
  16. Lysophospholipid receptors in neurodegeneration and neuroprotection.Exploration of neuroprotective therapy · 2024
    Article
  17. Receptors on Microglia.Advances in neurobiology · 2024
    Review
  18. Article
  19. Article
  20. Review

4 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

14 authors at 2 institutions in 1 country.

Ioanna PlastiraInstitute of Molecular Biology and Biochemistry, Medical University of Graz, Harrachgasse 21, 8010, Graz, Austria.
Eva BernhartInstitute of Molecular Biology and Biochemistry, Medical University of Graz, Harrachgasse 21, 8010, Graz, Austria.
Madeleine GoeritzerInstitute of Molecular Biology and Biochemistry, Medical University of Graz, Harrachgasse 21, 8010, Graz, Austria.
Helga ReicherInstitute of Molecular Biology and Biochemistry, Medical University of Graz, Harrachgasse 21, 8010, Graz, Austria.
Vishwanath Bhat KumbleInstitute of Molecular Biology and Biochemistry, Medical University of Graz, Harrachgasse 21, 8010, Graz, Austria.
Nora KogelnikInstitute of Molecular Biology and Biochemistry, Medical University of Graz, Harrachgasse 21, 8010, Graz, Austria.
Andrea WinterspergerInstitute of Molecular Biology and Biochemistry, Medical University of Graz, Harrachgasse 21, 8010, Graz, Austria.
Astrid HammerInstitute of Cell Biology, Histology and Embryology, Medical University of Graz, Graz, Austria.
Stefanie SchlagerInstitute of Molecular Biology and Biochemistry, Medical University of Graz, Harrachgasse 21, 8010, Graz, Austria.
Katharina JandlInstitute of Experimental and Clinical Pharmacology, Medical University of Graz, Graz, Austria.
Akos HeinemannInstitute of Experimental and Clinical Pharmacology, Medical University of Graz, Graz, Austria.
Dagmar KratkyInstitute of Molecular Biology and Biochemistry, Medical University of Graz, Harrachgasse 21, 8010, Graz, Austria.
Ernst MalleInstitute of Molecular Biology and Biochemistry, Medical University of Graz, Harrachgasse 21, 8010, Graz, Austria.
Wolfgang SattlerInstitute of Molecular Biology and Biochemistry, Medical University of Graz, Harrachgasse 21, 8010, Graz, Austria. wolfgang.sattler@medunigraz.at.
Medical University of Graz · ATBioTechMed-Graz · AT

Funding

Austrian Science Fund FWF W 1226
6 · The paper itself

Abstract

backgroundMicroglia, the immunocompetent cells of the CNS, rapidly respond to brain injury and disease by altering their morphology and phenotype to adopt an activated state. Microglia can exist broadly between two different states, namely the classical (M1) and the alternative (M2) phenotype. The first is characterized by the production of pro-inflammatory cytokines/chemokines and reactive oxygen and/or nitrogen species. In contrast, alternatively activated microglia are typified by an anti-inflammatory phenotype supporting wound healing and debris clearance. The objective of the present study was to determine the outcome of lysophosphatidic acid (LPA)-mediated signaling events on microglia polarization.

methodsLPA receptor expression and cyto-/chemokine mRNA levels in BV-2 and primary murine microglia (PMM) were determined by qPCR. M1/M2 marker expression was analyzed by Western blotting, immunofluorescence microscopy, or flow cytometry. Cyto-/chemokine secretion was quantitated by ELISA.

resultsBV-2 cells express LPA receptor 2 (LPA2), 3, 5, and 6, whereas PMM express LPA1, 2, 4, 5, and 6. We show that LPA treatment of BV-2 and PMM leads to a shift towards a pro-inflammatory M1-like phenotype. LPA treatment increased CD40 and CD86 (M1 markers) and reduced CD206 (M2 marker) expression. LPA increased inducible nitric oxide synthase (iNOS) and COX-2 levels (both M1), while the M2 marker Arginase-1 was suppressed in BV-2 cells. Immunofluorescence studies (iNOS, COX-2, Arginase-1, and RELMα) extended these findings to PMM. Upregulation of M1 markers in BV-2 and PMM was accompanied by increased cyto-/chemokine transcription and secretion (IL-1β, TNFα, IL-6, CCL5, and CXCL2). The pharmacological LPA5 antagonist TCLPA5 blunted most of these pro-inflammatory responses.

conclusionsLPA drives BV-2 and PMM towards a pro-inflammatory M1-like phenotype. Suppression by TCLPA5 indicates that the LPA/LPA5 signaling axis could represent a potential pharmacological target to interfere with microglia polarization in disease.

Indexed as

ActinsAnalysis of VarianceAnimalsAnimals, NewbornCell PolarityCells, CulturedCerebral CortexCytokinesEnzyme-Linked Immunosorbent AssayFlow CytometryLysophospholipidsMiceMicrogliaNitric Oxide Synthase Type IIReactive Oxygen SpeciesReceptors, Lysophosphatidic AcidActinsBrp-LPACytokineslysophosphatidic acidLysophospholipidsNitric Oxide Synthase Type IIReactive Oxygen SpeciesReceptors, Lysophosphatidic AcidRNA, MessengerIL-10IL-4LPSM1 and M2 polarizationNeuroinflammation

Identifiers

PMID27565558
PMCPMC5002165
OpenAlexW2508271242

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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 OpenQuestion graph.