Evidence map›Paper›PMID 34711292›Full record

ArticleBiological research2021

Allergens of the urushiol family promote mitochondrial dysfunction by inhibiting the electron transport at the level of cytochromes b and chemically modify cytochrome c

Rodrigo Pacheco, Sergio A Quezada, Alexis M Kalergis, María Inés Becker, Jorge Ferreira, Alfredo E De Ioannes

Open access · goldAbstract read
In one paragraph

Article in Biological research, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
0.5field-weighted citation impact, top 36% 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

3 citing papers in PubMed, 7 citations in OpenAlex.

  1. Article
  2. Review
  3. Article
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 5 institutions in 2 countries.

Rodrigo Pacheco *Laboratorio de Neuroinmunología, Fundación Ciencia & Vida, Santiago, Chile. rpacheco@cienciavida.org.ORCID http://orcid.org/0000-0001-8057-9806
Sergio A Quezada *Cancer Immunology Unit, University College London (UCL) Cancer Institute, London, England, UK.
Alexis M KalergisInstituto Milenio de Inmunología e Inmunoterapia, Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Departamento de Endocrinología, Facultad de Medicina, Pontificia Universidad Católica, Santiago, Chile.
María Inés BeckerFundación Ciencia y Tecnología para el Desarrollo (FUCITED), Santiago, Chile.
Jorge FerreiraFaculty of Medicine, Institute of Biomedical Sciences, Molecular and Clinical Pharmacology Program, Universidad de Chile, Santiago, Chile.
Alfredo E De IoannesDepartment of Research and Development, Biosonda Corporation, Santiago, Chile.
Fundación Chile · CLProduction Development Corporation · CLSan Sebastián University · CLUniversity College London · GBUniversity of Chile · CL

Funding

Comisión Nacional de Investigación Científica y Tecnológica FB-210008fondo de fomento al desarrollo científico y tecnológico 1180296fondo de fomento al desarrollo científico y tecnológico 1210013Fondo Nacional de Desarrollo Científico y Tecnológico 1201600
6 · The paper itself

Abstract

backgroundUrushiols are pro-electrophilic haptens that cause severe contact dermatitis mediated by CD8

resultsElectron microscopy observations of mouse ears exposed to litreol (3-n-pentadecyl-10-enyl-catechol]) showed keratinocytes containing swollen mitochondria with round electron-dense inclusion bodies in the matrix. Biochemical analyses of sub-mitochondrial fractions revealed an inhibitory effect of urushiols on electron flow through the mitochondrial respiratory chain, which requires both the aliphatic and catecholic moieties of these allergens. Moreover, urushiols extracted from poison ivy/oak (mixtures of 3-n-pentadecyl-8,11,13 enyl/3-n-heptadecyl-8,11 enyl catechol) exerted a higher inhibitory effect on mitochondrial respiration than did pentadecyl catechol or litreol, indicating that the higher number of unsaturations in the aliphatic chain, stronger the allergenicity of urushiols. Furthermore, the analysis of radioactive proteins isolated from mitochondria incubated with

conclusionOur data provide functional and molecular evidence indicating that the interruption of the mitochondrial electron transport chain constitutes an important mechanism by which urushiols initiates the allergic response. Thus, mitochondria may constitute a source of cellular targets for generating neoantigens involved in the T-cell mediated allergy induced by urushiols.

Indexed as

AllergensCytochromes bAnimalsCatecholsCytochromes cCytochromes c1Electron TransportMiceMitochondriaAllergensCatecholsCytochromes bCytochromes cCytochromes c1urushiolAllergyComplex IIIContact dermatitisCytochrome bc1Electron transport chainMitochondriaMitochondrial respirationUrushiols

Identifiers

PMID34711292
PMCPMC8554850
OpenAlexW3211175679

What OpenQuestion holds

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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.