Evidence map›Paper›PMID 27621809›Full record

ArticleImmunity, inflammation and disease2016

Intratracheal myriocin enhances allergen-induced Th2 inflammation and airway hyper-responsiveness.

Ramakrishna Edukulla, Kira Lee Rehn, Bo Liu, Jaclyn W McAlees, Gurjit K Hershey, Yui Hsi Wang, Ian Lewkowich, Andrew W Lindsley

Open access · goldAbstract read
In one paragraph

Article in Immunity, inflammation and disease, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
0.6field-weighted citation impact, top 29% 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

13 citing papers in PubMed, 15 citations in OpenAlex.

  1. Article
  2. Chinese herbal medicines · 2025
    Article
  3. Review
  4. Review
  5. Maternal vitamin D-related metabolome and offspring risk of asthma outcomes.The Journal of allergy and clinical immunology · 2023
    Article
  6. From gene identifications to therapeutic targets for asthma: Focus on great potentials ofChinese medical journal pulmonary and critical care medicine · 2023
    Review
  7. Article
  8. Sphingolipids and Asthma.Advances in experimental medicine and biology · 2022
    Article
  9. Orosomucoid-like protein 3, rhinovirus and asthma.World journal of critical care medicine · 2021
    Review
  10. Increasing Sphingolipid Synthesis Alleviates Airway Hyperreactivity.American journal of respiratory cell and molecular biology · 2020
    Article
  11. Review
  12. Sphingolipids and their enigmatic role in asthma.Advances in biological regulation · 2018
    Review
  13. 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

8 authors at 2 institutions in 1 country.

Ramakrishna EdukullaDivision of Allergy and Immunology Cincinnati Children's Hospital Medical Center Cincinnati Ohio USA.
Kira Lee RehnDivision of Allergy and Immunology Cincinnati Children's Hospital Medical Center Cincinnati Ohio USA.
Bo LiuDivision of Allergy and Immunology Cincinnati Children's Hospital Medical Center Cincinnati Ohio USA.
Jaclyn W McAleesDivision of Immunobiology Cincinnati Children's Hospital Medical Center Cincinnati Ohio USA.
Gurjit K HersheyDivision of Asthma ResearchCincinnati Children's Hospital Medical CenterCincinnatiOhioUSA; Department of PediatricsUniversity of CincinnatiCincinnatiOhioUSA.
Yui Hsi WangDivision of Allergy and Immunology Cincinnati Children's Hospital Medical Center Cincinnati Ohio USA.
Ian LewkowichDivision of Immunobiology Cincinnati Children's Hospital Medical Center Cincinnati Ohio USA.
Andrew W LindsleyDivision of Allergy and ImmunologyCincinnati Children's Hospital Medical CenterCincinnatiOhioUSA; Department of PediatricsUniversity of CincinnatiCincinnatiOhioUSA.
Cincinnati Children's Hospital Medical Center · USUniversity of Cincinnati Medical Center · US

Funding

Pediatric Center--Gene Expression /Developmental ScienceK12HD028827 · NICHD · CINCINNATI CHILDRENS HOSP MED CTR · PI Tina Lee Cheng · 2002 to 2026
$9.6M
NICHD NIH HHS K12 HD028827
6 · The paper itself

Abstract

introductionCeramide is the central substrate of sphingolipid metabolism and plays a key role in cellular signal transduction pathways, regulating apoptosis, differentiation, and chemotaxis. Alterations in airway ceramide levels are observed in multiple pulmonary diseases and recent human genetic association studies have linked dysregulation of sphingolipid regulatory genes with asthma pathogenesis.

methodsUtilizing myriocin, a potent inhibitor of sphingolipid synthesis, we evaluated the immune regulatory role of de novo ceramide generation in vitro and in vivo. Intratracheal myriocin was administered alone or during house dust mite sensitization (HDM) of BALB/C mice and airway hyper-responsiveness (AHR) was evaluated by invasive plethysmography followed by bronchial lavage (BAL) cytology and cytokine quantification.

resultsMyriocin inhibits and HDM exposure activates de novo ceramide synthesis in bone marrow-derived dendritic cells. Mice receiving intratracheal myriocin developed a mild airway neutrophilic infiltrate without inducing a significant increase in AHR. CXCL1 was elevated in the BAL fluid of myriocin-treated mice while the neutrophilic chemotactic factors anaphylatoxin C5a, leukotriene B4, and IL-17 were unaffected. HDM treatment combined with myriocin led to a dramatic enhancement of AHR (63% increase over HDM alone, p < 0.001) and increased granulocyte pulmonary infiltrates versus HDM or myriocin alone. Elevated Th2 T cell counts and Th2 cytokines/chemokines (IL5, IL13, CCL17) were observed in mice treated with combined HDM/myriocin compared to HDM alone. Myriocin-treated pulmonary CD11c+ cells stimulated with HDM secreted significantly more CXCL1 than cells stimulated with HDM alone while HDM stimulated airway epithelial cells showed no change in CXCL1 secretion following myriocin treatment.

conclusionsIntratracheal myriocin, likely acting via ceramide synthesis inhibition, enhances allergen-induced airway inflammation, granulocyte and Th2 lymphocyte recruitment, and allergen-induced AHR. Sphingolipid pathways may represent novel targets for possible future anti-inflammatory asthma medications.

Indexed as

Allergic airway inflammationceramidemyriocin

Identifiers

PMID27621809
PMCPMC4893390
OpenAlexW2411653451

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.