Lupus & antiphospholipid syndrome

Genetics of Childhood‐Onset Systemic Lupus Erythematosus

Arthritis RheumatolPublished Genome-wide association study

Authors' conclusion

We identified a significant locus for younger age at SLE diagnosis, intronic to CCDC113, among a large multiancestral cohort of children and adults with SLE. In the first GWAS of cSLE, we identified a TSBP1-AS1 locus and an HLA-DQA1 previously identified for aSLE.

Study context

Population
Patients with systemic lupus erythematosus (SLE) meeting ACR and/or SLICC classification criteria, with documented age at diagnosis; 88% female; multiancestral (39% European, 19% East Asian, 17% Admixed)1,489 patients with SLE
Participants
346 vs 4,080
Exposure
Known SLE loci tested with age at SLE diagnosis; Genome-wide association studies (GWAS) of cSLE vs children and adolescents without SLE
  • cSLEn = 346
  • Controls without SLEn = 4,080reference
Outcome
Genetic variants for age at SLE diagnosis (log-transformed), known SLE loci (142 non-HLA, 166 HLA)
Methodological detailsmultiethnic arrays, multiancestral cohort, adjusted for sex and five principal components
  • Multiethnic arrays
  • Multiancestral cohort
  • Adjusted for sex and five principal components

Main finding

As reported in the abstract

Age at SLE diagnosis, known SLE loci
SLE-risk SNP intronic to CCDC113 (chromosome 16) associated with younger age at SLE diagnosis: β = −0.12, SE = 0.03
P = 6.3 × 10-6

Observational data: associations, not effects.

Further findings

OutcomeOR (95% CI)P value
GWAS of cSLEvs controls without SLE: chromosome 6 SNP rs9268469, intronic to TSBP1-AS1Genome-wide significance P < 5 × 10-82.04 (1.59–2.63)P = 1.79 × 10-8

GWAS of cSLE vs controls without SLE: chromosome 6 SNP rs9268469, intronic to TSBP1-AS1

HLA-DQA1 also identified

Original publication

Genetics of Childhood‐Onset Systemic Lupus Erythematosus. Arthritis Rheumatol. Published 21 September 2025. doi:10.1002/art.43227

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