Cranial and extracranial giant cell arteritis do not have different HLA-DRB1 and HLA-B association in Caucasian individuals
Arthritis Research & Therapy volume 23, Article number: 268 (2021)
To the editor,
We have read with interest the article published in Arthritis Research & Therapy by Kushimoto et al. suggesting that the HLA-B*52 allele may indicate the presence of diffuse extracranial large vessel vasculitis (LVV) in patients with giant cell arteritis (GCA) . GCA is the prototype of LVV that affects people over 50 years of age, especially those of European descent . Unlike Takayasu arteritis, a LVV that predominantly affects people under 50 years of age, GCA is rare in Asian countries . For years, GCA was considered a cranial disease. However, the use of imaging techniques has shown that it also affects large extracranial vessels . In this sense, in some cases, GCA has a pure extracranial phenotype. These patients are usually younger and have polymyalgia rheumatica (PMR) more frequently than those with a classic pattern of cranial GCA .
There is a genetic component in the pathogenesis of GCA . Different studies point to the influence of genes located in the MHC region, in particular the HLA-DRB1*04 alleles . Since the pattern of vascular involvement in Takayasu arteritis often resembles that found in patients with extracranial GCA, and the genetic contribution to the pathogenesis of the disease is mainly mediated by the HLA-B*52 allele , we wondered if in Caucasian individuals the association of HLA with GCA may differ according to the predominant pattern of the disease. For this reason, we evaluated a series of 105 Spanish patients older than 50 years with extracranial LVV without cranial manifestations and compared them with a series of 184 patients with biopsy-proven GCA with typical cranial manifestations of the disease, who did not present features of extracranial involvement. We confirmed in our population the previously reported association of GCA with HLA-DRB1*04, in particular with the HLA-DRB1*04:01 allele, regardless of the clinical phenotype . In a further step, we looked for possible differences in the HLA-B locus. However, we did not find HLA-B differences between these two subgroups of Spanish patients with GCA that showed a similar association with the HLA-B*15 allele, mainly due to HLA-B*15:01. Furthermore, we found that the presence of HLA-B*15:01 and HLA-DRB1*04:01 increases the risk of developing both cranial and extracranial LVV-GCA in our population .
Kushimoto et al. evaluated 40 Japanese patients over 50 years of age who were categorized as elderly-onset LVV (EOLVV) that showed diffuse vascular lesions similar to those found in extracranial LVV-GCA, 13 of them also had temporal artery involvement, while 27 did not . The 27 patients with isolated extracranial EOLVV were classified into two groups: 11 and 16 patients with and without PMR. The 11 extracranial EOLVV patients with PMR and the 13 patients with both cranial and extracranial involvement formed a cluster of patients who were HLA-B*52 positive . However, we could not demonstrate a higher prevalence of the HLA-B*52 allele in Spanish patients with extracranial GCA . In this regard, only 2 of 105 Spanish patients with extracranial-LVV carried the HLA-B*52 allele. This frequency was similar to that observed in patients with cranial GCA (4 of 184) and healthy controls (15 of 486). Accordingly, HLA-B*52 cannot be considered as a marker for extracranial LVV in Caucasian individuals over 50 years of age.
It is possible that different genetic backgrounds and the influence of other genes located outside the MHC region may explain the differences in the incidence and clinical expression of LVV in Caucasian individuals compared to those in Asian countries.
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All data generated or analyzed during this study are included in this published article.
Giant cell arteritis
Large vessel vasculitis
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Spanish collaborative group for the study of large-vessel vasculitis: Fernanda Genrea, Javier Gonzalo Ocejo-Vinyalsb, Alejandro Muñoz Jiménezc, Francisco Ortiz-Sanjuánd, Susana Romero-Yustee, Clara Morianof, Eva Galíndez-Agirregoikoag, Itziar Calvog, Norberto Ortego-Centenoh, Noelia Álvarez-Rivasi, José A. Miranda-Filloyj, Irene Llorentek, Ricardo Blancoa,l, Oreste Gualillom,n, Javier Martíno, Ana Márquezo, Santos Castañedak, Iván Ferraz-Amarop
aResearch group on genetic epidemiology and atherosclerosis in systemic diseases and in metabolic bone diseases of the musculoskeletal system, IDIVAL, Santander, Spain.
bDepartment of Immunology, Hospital Universitario Marqués de Valdecilla, Santander, Spain.
cDepartment of Rheumatology, Hospital Universitario Virgen del Rocío, Sevilla, Spain.
dDepartment of Rheumatology, Hospital Universitario y Politécnico La Fe, Valencia, Spain.
eDepartment of Rheumatology, Complejo Hospitalario Universitario Pontevedra, Spain
fDepartment of Rheumatology, Complejo Asistencial Universitario de León, León, Spain.
gDepartment of Rheumatology, Hospital Universitario de Basurto, Bilbao, Spain.
hAutoimmune Diseases Unit, Hospital Universitario San Cecilio, Instituto de Investigación Biosanitaria de Granada (IBS Granada), Department of Internal Medicine, University of Granada, Granada, Spain.
iDepartment of Rheumatology, Hospital Universitario San Agustín, Avilés, Spain.
jDivision of Rheumatology, Hospital Universitario Lucus Augusti, Lugo, Spain.
kDepartment of Rheumatology, Hospital Universitario de la Princesa, IIS-Princesa, Cátedra EPID Future, Universidad Autónoma de Madrid (UAM), Madrid, Spain.
lDepartment of Rheumatology, Hospital Universitario Marqués de Valdecilla, Santander, Spain.
mHealth Research Institute of Santiago, Santiago de Compostela, Spain.
nThe NEIRID Group (Neuroendocrine Interactions in Rheumatology and Inflammatory Diseases), Santiago University Clinical Hospital, Santiago de Compostela, Spain.
oInstituto de Parasitología y Biomedicina ‘López-Neyra’, CSIC, PTS Granada, Granada, Spain.
pDivision of Rheumatology, Hospital Universitario de Canarias, Tenerife, Spain.
This research did not receive any specific grant from funding agencies in the commercial or not-for-profit sectors.
DP-P is supported by a research contract from the Carlos III Health Institute of Spain (Rio Hortega program, ref. CM20/00006). SR-M is supported by funds of the RETICS Program (RD16/0012/0009), co-founded by the European Regional Development Fund (ERDF). BA-M is a recipient of a “López-Albo” Post-Residency Programme funded by Servicio Cantabro de Salud. OG is staff personnel of Xunta de Galicia (Servizo Galego de Saude [SERGAS]) through a research-staff stabilization contract (ISCIII/SERGAS), and his work is funded by ISCIII and the European Union FEDER fund (grants RD16/0012/0014 [RIER] and PI17/00409). He is the beneficiary of project funds from the Research Executive Agency (REA) of the European Union in the framework of MSCA-RISE Action of the H2020 Programme, project 734899-Olive-Net. RL-M is a recipient of a Miguel Servet type I programme fellowship from the “Instituto de Salud Carlos III” (ISCIII), co-funded by the European Social Fund (ESF, “Investing in your future”) (grant CP16/00033).
Ethics approval and consent to participate
The study was approved by the Ethics Committee of clinical research of Cantabria for Hospital Universitario Marqués de Valdecilla, of Bilbao for Hospital Universitario de Basurto (Bilbao, Spain), of León for Hospital de León, of Madrid for Hospital Universitario de La Princesa, of Valencia for Hospital Universitario y Politécnico La Fe, of Sevilla for Hospital Universitario Virgen del Rocío, of Pontevedra for Hospital Universitario de Pontevedra, of Lugo for Hospital Universitario Lucus Augusti, of Granada for Hospital Universitario San Cecilio, and of Avilés for Hospital San Agustín. All subjects provided informed written consent before being enrolled in the study. The procedures followed were in accordance with the ethical standards of the approved guidelines and regulations, according to the Declaration of Helsinki.
Consent for publication
DP-P has received research support from UCB Pharma, Roche, AbbVie, and Lilly. BA-M received grants/research supports from Kern Pharma, AbbVie, Pfizer, Celgene, and GSK. RB received grants/research supports from Abbvie, MSD, and Roche and had consultation fees/participation in company-sponsored speaker’s bureau from Abbvie, Lilly, Pfizer, Roche, Bristol-Myers, Janssen, UCB Pharma, and MSD. MAG-G received grants/research supports from Abbvie, MSD, Jansen, and Roche and had consultation fees/participation in company-sponsored speaker’s bureau from Abbvie, Pfizer, Roche, Sanofi, Lilly, Celgene, and MSD. The remaining authors declare that they have no competing interests.
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Prieto-Peña, D., Remuzgo-Martínez, S., Atienza-Mateo, B. et al. Cranial and extracranial giant cell arteritis do not have different HLA-DRB1 and HLA-B association in Caucasian individuals. Arthritis Res Ther 23, 268 (2021). https://doi.org/10.1186/s13075-021-02659-9