Evidence map›Paper›PMID 26459150›Full record

Observational studyMultiple sclerosis (Houndmills, Basingstoke, England)2016

Dimethyl fumarate selectively reduces memory T cells in multiple sclerosis patients.

E E Longbrake, M J Ramsbottom, C Cantoni, L Ghezzi, A H Cross, L Piccio

Registry-linked trialOpen access · greenAbstract readObservational Study
In one paragraph

Observational study in Multiple sclerosis (Houndmills, Basingstoke, England), 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT05808101 (Role of the Gut Microbiome as Determinant of Depression in Multiple Sclerosis Subjects), which is not on this map. Cited by 63 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
63citing papers in PubMed, 1 pooled it
11.7field-weighted citation impact, top 1% 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.

NCT05808101 terminatednot on this mapstarted 2022, after this paper: background citation

Role of the Gut Microbiome as Determinant of Depression in Multiple Sclerosis Subjects

TypeobservationalSponsorWashington University School of MedicineRan2022 to 2024Enrolled51ConditionsMultiple Sclerosis, DepressionArmsNeuro-QoL T-score determination
3 · Its place in the literature

Who cites it

63 citing papers in PubMed, 1 synthesis or guideline pooled it, 116 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Review
  4. Review
  5. Article
  6. Article
  7. Review
  8. Article
  9. High-dimensional immune profiling identifies a biomarker to monitor dimethyl fumarate response in multiple sclerosis.Proceedings of the National Academy of Sciences of the United States of America · 2022
    Article
  10. Review
  11. Review
  12. Review
  13. Article
  14. Review
  15. Review
  16. Article
  17. Review
  18. Article
  19. The immunologic Warburg effect: Evidence and therapeutic opportunities in autoimmunity.Wiley interdisciplinary reviews. Systems biology and medicine · 2020
    Review
  20. Review

3 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

6 authors at 2 institutions in 2 countries.

E E LongbrakeDepartment of Neurology, Washington University in St. Louis, St. Louis, Missouri.
M J RamsbottomDepartment of Neurology, Washington University in St. Louis, St. Louis, Missouri.
C CantoniDepartment of Neurology, Washington University in St. Louis, St. Louis, Missouri.
L GhezziDepartment of Neurology, Washington University in St. Louis, St. Louis, Missouri.
A H Cross *Department of Neurology, Washington University in St. Louis, St. Louis, Missouri.
L Piccio *Department of Neurology, Washington University in St. Louis, St. Louis, Missouri.
Washington University in St. Louis · USFondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico · IT

Funding

Washington University Institute of Clinical and Translational SciencesUL1TR000448 · NCATS · WASHINGTON UNIVERSITY · PI EVANOFF, BRADLEY A · 2012 to 2016
$41.4M
NCATS NIH HHS UL1 TR000448
6 · The paper itself

Abstract

backgroundDimethyl fumarate (DMF) alters the phenotype of circulating immune cells and causes lymphopenia in a subpopulation of treated multiple sclerosis (MS) patients.

objectiveTo phenotypically characterize circulating leukocytes in DMF-treated MS patients.

methodsCross-sectional observational comparisons of peripheral blood from DMF-treated MS patients (n = 17 lymphopenic and n = 24 non-lymphopenic), untreated MS patients (n = 17) and healthy controls (n = 23); immunophenotyped using flow cytometry. Longitudinal samples were analyzed for 13 DMF-treated patients.

resultsLymphopenic DMF-treated patients had significantly fewer circulating CD8(+) and CD4(+) T cells, CD56(dim) natural killer (NK) cells, CD19(+) B cells and plasmacytoid dendritic cells when compared to controls. CXCR3(+) and CCR6(+) expression was disproportionately reduced among CD4(+) T cells, while the proportion of T-regulatory (T-reg) cells was unchanged. DMF did not affect circulating CD56(hi) NKcells, monocytes or myeloid dendritic cells. Whether lymphopenic or not, DMF-treated patients had a lower proportion of circulating central and effector memory T cells and concomitant expansion of naïve T cells compared to the controls.

conclusionsDMF shifts the immunophenotypes of circulating T cells, causing a reduction of memory cells and a relative expansion of naïve cells, regardless of the absolute lymphocyte count. This may represent one mechanism of action of the drug. Lymphopenic patients had a disproportionate loss of CD8(+) T-cells, which may affect their immunocompetence.

Indexed as

Case-Control StudiesCD8-Positive T-LymphocytesCross-Sectional StudiesDimethyl FumarateFlow CytometryHumansImmunologic MemoryImmunophenotypingImmunosuppressive AgentsLymphocyte CountLymphopeniaMultiple SclerosisPhenotypeTime FactorsT-Lymphocytes, RegulatoryTreatment OutcomeDimethyl FumarateImmunosuppressive AgentsDimethyl fumarateimmunocompetenceimmunologylymphocyte typeslymphopeniamemory T cellsmultiple sclerosisneuroimmunologyrelapse

Identifiers

PMID26459150
PMCPMC4829494
OpenAlexW2343323874

What OpenQuestion holds

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Registered trials

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.