Evidence map›Paper›PMID 41444678›Full record

ArticleBiological research2025

Distribution of HLA-ABC allele groups in a cohort of Chilean rheumatoid arthritis patients and healthy individuals.

Miqueas Jaime, Lucero Toro, Constanza Varela-Villarroel, Darly Montano-Bruno, Bárbara Pesce, Daniela Schneider, Lilian Soto, Francisca Bozán, Óscar Neira, María C Cuéllar-Gutiérrez and 6 more

Abstract read
In one paragraph

Article in Biological research, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–field-weighted citation impact
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

1 citing paper in PubMed.

  1. 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

16 authors.

Miqueas Jaime *Immune Regulation and Tolerance Research Group (IRT Group), Núcleo Interdisciplinario de Farmacología e Inmunología, Instituto de Ciencias Biomédicas (ICBM), Facultad de Medicina, Universidad de Chile, Santiago, Chile.
Lucero Toro *Immune Regulation and Tolerance Research Group (IRT Group), Núcleo Interdisciplinario de Farmacología e Inmunología, Instituto de Ciencias Biomédicas (ICBM), Facultad de Medicina, Universidad de Chile, Santiago, Chile.
Constanza Varela-VillarroelImmune Regulation and Tolerance Research Group (IRT Group), Núcleo Interdisciplinario de Farmacología e Inmunología, Instituto de Ciencias Biomédicas (ICBM), Facultad de Medicina, Universidad de Chile, Santiago, Chile.
Darly Montano-BrunoImmune Regulation and Tolerance Research Group (IRT Group), Núcleo Interdisciplinario de Farmacología e Inmunología, Instituto de Ciencias Biomédicas (ICBM), Facultad de Medicina, Universidad de Chile, Santiago, Chile.
Bárbara PesceMED.UCHILE-FACS Lab REDECA, Instituto de Ciencias Biomédicas (ICBM), Facultad de Medicina, Universidad de Chile, Santiago, Chile.
Daniela SchneiderImmune Regulation and Tolerance Research Group (IRT Group), Núcleo Interdisciplinario de Farmacología e Inmunología, Instituto de Ciencias Biomédicas (ICBM), Facultad de Medicina, Universidad de Chile, Santiago, Chile.
Lilian SotoImmune Regulation and Tolerance Research Group (IRT Group), Núcleo Interdisciplinario de Farmacología e Inmunología, Instituto de Ciencias Biomédicas (ICBM), Facultad de Medicina, Universidad de Chile, Santiago, Chile.
Francisca BozánHospital Clínico de la Universidad de Chile, Santiago, Chile.
Óscar NeiraHospital del Salvador, Santiago, Chile.
María C Cuéllar-GutiérrezHospital del Salvador, Santiago, Chile.
Consuelo ArroyoHospital del Salvador, Santiago, Chile.
Guido RiveraHospital del Salvador, Santiago, Chile.
Eduard PalouServicio de Inmunología, Hospital Clínic de Barcelona, Barcelona, Spain.
Diego CatalánImmune Regulation and Tolerance Research Group (IRT Group), Núcleo Interdisciplinario de Farmacología e Inmunología, Instituto de Ciencias Biomédicas (ICBM), Facultad de Medicina, Universidad de Chile, Santiago, Chile.
Jaxaira MaggiImmune Regulation and Tolerance Research Group (IRT Group), Núcleo Interdisciplinario de Farmacología e Inmunología, Instituto de Ciencias Biomédicas (ICBM), Facultad de Medicina, Universidad de Chile, Santiago, Chile.
Juan C AguillónImmune Regulation and Tolerance Research Group (IRT Group), Núcleo Interdisciplinario de Farmacología e Inmunología, Instituto de Ciencias Biomédicas (ICBM), Facultad de Medicina, Universidad de Chile, Santiago, Chile. jaguillo@uchile.cl.ORCID http://orcid.org/0000-0003-3148-6843

Funding

Agencia Nacional de Investigación y Desarrollo 1221611Agencia Nacional de Investigación y Desarrollo 1240060
6 · The paper itself

Abstract

backgroundRheumatoid Arthritis (RA) is an autoimmune disease in which HLA-DRB1 alleles encoding the "Shared Epitope" (SE), located in the β-chain of class II HLA-DR molecules, constitute the main genetic risk factor. However, there is scarce information about the role of HLA class I genes (HLA-ABC) in RA susceptibility. The present work aimed to evaluate the distribution of HLA-ABC allele groups in a cohort of Chilean RA patients and healthy subjects (HS), and to explore the influence of HLA-DRB1 SE alleles on this distribution.

results135 RA patients and 122 HS were genotyped for HLA-ABC. The most frequent allele groups were HLA-A*02 (24.0%), HLA-B*39.1 (14.2%), and HLA-C*07 (24.7%) for RA patients, and HLA-A*02 (31.5%), HLA-A*24 (12.8%) and HLA-C*07 (17.7%) for HS. RA patients presented a significantly higher frequency of HLA-C*07 (p = 0.0015) and HLA-B*39.1 (p = 0.037) allele groups compared to HS. After applying the Bonferroni correction, the significant difference remained only for the HLA-C*07 allele group (p = 0.015). In a subset of RA patients (n = 60), positive for HLA-DRB1 SE alleles, the most frequent HLA-ABC allele groups were HLA-A*02 (0-33.3%), HLA-B*39.1 (0-16.7%), and HLA-C*07 (22.2-60.0%), whereas HLA-B*39.2 and HLA-B*52 were the least frequent ones. Overall, HLA-C*07 was the most frequent allele group across RA patients carrying HLA-DRB1 SE alleles.

conclusionsThe HLA-C*07 allele group shows a significantly higher presence in RA patients compared to HS. In contrast, the distribution of most other HLA-ABC allele groups in this cohort displays a similar frequency between RA patients and HS, consistent with data from different populations.

Indexed as

Arthritis, RheumatoidHLA-C AntigensHLA-DRB1 ChainsAdultAgedAllelesCase-Control StudiesChileCohort StudiesFemaleGene FrequencyGenetic Predisposition to DiseaseGenotypeHLA-B AntigensHumansMaleHLA-B AntigensHLA-C AntigensHLA-DRB1 ChainsHLA-ABC and HLA-DRB1 allelesRheumatoid arthritisShared epitope

Identifiers

PMID41444678
PMCPMC12814593

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.