ArticleBreast cancer research and treatment2025
HLA gene polymorphism is a modifier of age-related breast cancer penetrance in carriers of BRCA1 pathogenic alleles.
Article in Breast cancer research and treatment, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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Who cites it
3 citing papers in PubMed.
- Association Between Amino Acid Polymorphisms in MICA and MICA-NKG2D Interaction Affinity: Implications and Significance for Tumor Immunity.Biomolecules · 2025Review
- Germline Variants in the Immune Response-Related Genes: Possible Modifying Effect on Age-DependentCancers · 2025Article
- Overview on biomarkers for immune oncology drugs.Exploration of targeted anti-tumor therapy · 2025Review
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Authors and funding
11 authors.
Funding
Abstract
purposeFemale carriers of germline BRCA1 mutations almost invariably develop breast cancer (BC); however, the age at onset is a subject of variation. We hypothesized that the age-related penetrance of BRCA1 mutations may depend on inherited variability in the host immune system.
methodsNext-generation sequencing was utilized for genotyping of HLA class I/II genes (HLA-A, HLA-B, HLA-C, HLA-DPB1, HLA-DQB1, and HLA-DRB1/3/4/5) in patients with BRCA1-associated BC with early (< / = 38 years, n = 215) and late (> / = 58 years, n = 108) age at onset.
resultsHLA-DQB1*06:03P prevalence was higher in the late-onset group due to the excess of allele carriers [25/108 (23.1%) vs. 22/215 (10.2%); OR 2.96, p < 0.001]. For all HLA-I loci, there was a trend toward an increase in the number of homozygotes in the early-onset group. This trend reached statistical significance for the HLA-A [14.4% vs. 6.5%, p = 0.037; OR 2.4, p = 0.042]. The frequencies of HLA-DPB1, HLA-DQB1, and HLA-DRB1/3/4/5 homozygous genotypes did not differ between young-onset and late-onset patients. The maximum degree of homozygosity detected in this study was 6 out of 7 HLA class I/II loci; all six carriers of these genotypes were diagnosed with BC at the age < / = 38 years [OR 6.97, p = 0.187].
conclusionHLA polymorphism may play a role in modifying the penetrance of BRCA1 pathogenic variants. Certain HLA alleles or HLA homozygosity may modify the risk of BC in BRCA1 carriers.
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