Evidence map›Paper›PMID 33158438›Full record

ArticleJournal of neuroinflammation2020

Air pollution as a contributor to the inflammatory activity of multiple sclerosis.

Andrea Cortese, Luca Lova, Patrizia Comoli, Elisabetta Volpe, Silvia Villa, Giulia Mallucci, Sabrina La Salvia, Alfredo Romani, Diego Franciotta, Valentina Bollati and 6 more

Open access · goldAbstract read
In one paragraph

Article in Journal of neuroinflammation, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
2.9field-weighted citation impact, top 8% 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

22 citing papers in PubMed, 54 citations in OpenAlex.

  1. Health disparities in neurology.Nature reviews. Neurology · 2025
    Review
  2. Review
  3. Review
  4. Article
  5. Article
  6. Article
  7. Review
  8. Article
  9. Review
  10. Article
  11. Article
  12. Article
  13. Article
  14. Review
  15. Review
  16. Observational
  17. Article
  18. Review
  19. Review
  20. Review
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

16 authors at 5 institutions in 3 countries.

Andrea CorteseDepartment of Brain and Behavioural Sciences, University of Pavia, Pavia, Italy. andrea.cortese@unipv.it.ORCID http://orcid.org/0000-0002-2208-5311
Luca LovaBiosciences S.p.A., Milan, Italy.
Patrizia ComoliIRCCS Policlinico S. Matteo Foundation, Pavia, Italy.
Elisabetta VolpeIRCCS Santa Lucia Foundation, Rome, Italy.
Silvia VillaIRCCS Mondino Foundation, Pavia, Italy.
Giulia MallucciDepartment of Brain and Behavioural Sciences, University of Pavia, Pavia, Italy. giulia.mallucci@mondino.it.
Sabrina La SalviaIRCCS Mondino Foundation, Pavia, Italy.
Alfredo RomaniIRCCS Mondino Foundation, Pavia, Italy.
Diego FranciottaIRCCS Mondino Foundation, Pavia, Italy.
Valentina BollatiUniversity of Milan, Milan, Italy.
Sabrina BassoIRCCS Policlinico S. Matteo Foundation, Pavia, Italy.
Ilaria GuidoIRCCS Policlinico S. Matteo Foundation, Pavia, Italy.
Giuseppe QuartuccioIRCCS Policlinico S. Matteo Foundation, Pavia, Italy.
Luca BattistiniIRCCS Santa Lucia Foundation, Rome, Italy.
Cristina CeredaIRCCS Mondino Foundation, Pavia, Italy.
Roberto BergamaschiIRCCS Mondino Foundation, Pavia, Italy. roberto.bergamaschi@mondino.it.
Policlinico San Matteo Fondazione · ITFondazione Santa Lucia · ITUniversity of Pavia · ITFoundation Center · USUniversity of Milan · IT

Funding

Medical Research Council MR/T001712/1Ministero della Salute Ricerca Corrente 2017-2019
6 · The paper itself

Abstract

objectiveAir pollution has been recently identified as a risk factor for multiple sclerosis. Aim of this study was to investigate the immunological mechanism underlying the clinical association between air pollution, namely exposure to particulate matter 10 (PM10), and inflammatory activity of multiple sclerosis (MS)

methodsDaily recording of PM10 was obtained by monitors depending on the residence of subjects. Expression of molecules involved in activation, adhesion, and migration of T lymphocytes were tested by flow cytometry in 57 MS patients and 19 healthy controls. We next assessed in vitro the effect of PM10 on expression of C-C chemokine receptors 6 (CCR6) by peripheral blood mononuclear cells (PBMCs), on cytokine production by monocyte-derived dendritic cells (mdDC), and on T cell polarization in PBMC/mdDC mixed cultures.

resultsWe identified a significant correlation between mean PM10 levels and expression of CCR6 CD4+ T circulating cells in MS patients. This was paralleled by the observation in vitro of a higher level of CCR6 expression on PBMC following treatment with increased doses of particulate matter. Moreover, in mdDC cultures, particulate matter induced the secretion by mdDC of Th17 polarizing IL1 beta, IL6, and IL23 and, in mdDC/PBMC mixed cultures, enhanced generation of IL17-producing T cells.

conclusionsEx vivo and in vitro studies support the pro-inflammatory role of PM in MS, by upregulating expression of CCR6 on circulating CD4+ T cells and inducing in innate immune cells the production of Th17 polarizing cytokines. Therefore, we speculate that in MS respiratory exposure to PM10 may induce the production in the lung of autoreactive Th17 lymphocytes and boost their migratory properties through the blood-brain barrier.

Indexed as

AdultAir PollutionCells, CulturedFemaleHumansInflammationInflammation MediatorsLeukocytes, MononuclearMaleMiddle AgedMultiple SclerosisParticulate MatterInflammation MediatorsParticulate MatterAdhesion moleculesAir pollutionMultiple sclerosisParticulate matterTh 17 lymphocytes

Identifiers

PMID33158438
PMCPMC7645903
OpenAlexW3096862391

What OpenQuestion holds

Textmetadata
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.