Evidence map›Paper›PMID 25498791›Full record

ArticleThe Journal of allergy and clinical immunology2015

The novel flavone tetramethoxyluteolin is a potent inhibitor of human mast cells.

Zuyi Weng, Arti B Patel, Smaro Panagiotidou, Theoharis C Theoharides

Open access · greenAbstract read
In one paragraph

Article in The Journal of allergy and clinical immunology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 76 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
76citing papers in PubMed, 2 pooled it
4.0field-weighted citation impact, top 5% 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

76 citing papers in PubMed, 2 syntheses or guidelines pooled it, 139 citations in OpenAlex.

  1. Pooled it
  2. Mast cells in meningiomas and brain inflammation.Journal of neuroinflammation · 2015
    Pooled it
  3. Article
  4. Review
  5. Review
  6. The Anaphylactic and Anti-allergenic Properties of Shuanghuanglian: A Review.Combinatorial chemistry & high throughput screening · 2026
    Review
  7. Role of Mast Cells and Their Mediators in Chronic Kidney Diseases.International journal of molecular sciences · 2025
    Review
  8. Article
  9. Review
  10. Mast cell activation syndrome: Current understanding and research needs.The Journal of allergy and clinical immunology · 2024
    Review
  11. Mast Cells in Autism Spectrum Disorder-The Enigma to Be Solved?International journal of molecular sciences · 2024
    Review
  12. Article
  13. Article
  14. Review
  15. Application of Luteolin in Neoplasms and Nonneoplastic Diseases.International journal of molecular sciences · 2023
    Review
  16. Potential Role of Moesin in Regulating Mast Cell Secretion.International journal of molecular sciences · 2023
    Review
  17. Article
  18. Review
  19. Review
  20. Evidence of Flavonoids on Disease Prevention.Antioxidants (Basel, Switzerland) · 2023
    Review

16 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

4 authors at 2 institutions in 1 country.

Zuyi WengMolecular Immunopharmacology and Drug Discovery Laboratory, Department of Integrative Physiology and Pathobiology, Tufts University School of Medicine, Boston, Mass; Graduate Program in Pharmacology, Sackler School of Graduate Biomedical Sciences, Tufts University, Boston, Mass.
Arti B PatelMolecular Immunopharmacology and Drug Discovery Laboratory, Department of Integrative Physiology and Pathobiology, Tufts University School of Medicine, Boston, Mass; Graduate Program in Cell, Molecular and Developmental Biology, Sackler School of Graduate Biomedical Sciences, Tufts University, Boston, Mass.
Smaro PanagiotidouMolecular Immunopharmacology and Drug Discovery Laboratory, Department of Integrative Physiology and Pathobiology, Tufts University School of Medicine, Boston, Mass.
Theoharis C TheoharidesMolecular Immunopharmacology and Drug Discovery Laboratory, Department of Integrative Physiology and Pathobiology, Tufts University School of Medicine, Boston, Mass; Graduate Program in Pharmacology, Sackler School of Graduate Biomedical Sciences, Tufts University, Boston, Mass; Graduate Program in Cell, Molecular and Developmental Biology, Sackler School of Graduate Biomedical Sciences, Tufts University, Boston, Mass; Department of Internal Medicine, Tufts University School of Medicine and Tufts Medical Center, Boston, Mass. Electronic address: theoharis.theoharides@tufts.edu.
Tufts University · USTufts Medical Center · US

Funding

Stress Induces Skin Mast Cell Activation &VasodilationR01AR047652 · NIAMS · TUFTS UNIVERSITY BOSTON · PI THEOHARIDES, THEOHARIS C. · 2001 to 2011
$3.0M
Brain mast cells and Chronic Fatigue SyndromeR01NS071361 · NINDS · TUFTS UNIVERSITY BOSTON · PI THEOHARIDES, THEOHARIS C. · 2010 to 2013
$1.4M
NIAMS NIH HHS AR47652NIAMS NIH HHS R01 AR047652NINDS NIH HHS R01 NS071361
6 · The paper itself

Abstract

backgroundMast cells (MCs) are hematopoietic cells that mature in tissues and are involved in allergy, immunity, and inflammation by secreting multiple mediators. The natural flavone luteolin has anti-inflammatory actions and inhibits human mast cells (MCs).

objectiveWe sought to investigate the ability of luteolin and its novel structural analog 3',4',5,7-tetramethoxyluteolin (methlut) to inhibit human MC mediator expression and release in vitro and in vivo.

methodsHuman LAD2 cells and umbilical primary human cord blood-derived cultured mast cells were stimulated with substance P (SP) or IgE/anti-IgE with or without preincubation with luteolin, methlut, or cromolyn (1-100 μmol/L) for 2 or 24 hours, after which mediator secretion was measured. The effect of the compounds on MC intracellular calcium levels and nuclear factor κB activation was also investigated. Pretreatment with methlut was also studied in mice passively sensitized with dinitrophenol-human serum albumin and challenged intradermally.

resultsMethlut is a more potent inhibitor than luteolin or cromolyn for β-hexosaminidase and histamine secretion from LAD2 cells stimulated by either SP or IgE/anti-IgE, but only methlut and luteolin significantly inhibit preformed TNF secretion. Methlut is also a more potent inhibitor than luteolin of de novo-synthesized TNF from LAD2 cells and of CCL2 from human cord blood-derived cultured MCs. This mechanism of action for methlut might be due to its ability to inhibit intracellular calcium level increases, as well as nuclear factor κB induction, at both the transcriptional and translational levels in LAD2 cells stimulated by SP without affecting cell viability. Intraperitoneal treatment with methlut significantly decreases skin vascular permeability of Evans blue dye in mice passively sensitized to dinitrophenol-human serum albumin and challenged intradermally.

conclusionMethlut is a promising MC inhibitor for the treatment of allergic and inflammatory conditions.

Indexed as

Antibodies, Anti-IdiotypicCalciumCapillary PermeabilityCell DegranulationCells, CulturedChemokine CCL2FlavonesGene Expression RegulationHexosaminidasesHumansImmunoglobulin ELuteolinMast CellsNF-kappa BTumor Necrosis FactorsAntibodies, Anti-Idiotypicanti-IgE antibodiesCalciumChemokine CCL2flavoneFlavonesHexosaminidasesImmunoglobulin ELuteolinNF-kappa BTumor Necrosis FactorsAllergycalciuminflammationluteolinmast cellsnuclear factor κBtetramethoxyluteolin

Identifiers

PMID25498791
PMCPMC4388775
OpenAlexW2127172511

What OpenQuestion holds

Textmetadata
LicenceTDM
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.