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Is Pemphigus Vulgaris Genetic?
- Heritability
- ~40%
- Inheritance
- polygenic
- Key genes
- HLA-DRB1 HLA-DQB1
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Autoimmune blistering skin disease with strong HLA class II associations particularly in people of Ashkenazi Jewish or South Asian ancestry.
How Genetic Is Pemphigus Vulgaris?
Pemphigus Vulgaris involves complex interactions between multiple genes and environmental factors. Heritability estimates range up to 40%, though no single gene determines outcome on its own.
Key genes associated with Pemphigus Vulgaris: HLA-DRB1 HLA-DQB1. Variants in these genes have been identified through genome-wide association studies (GWAS) and clinical research as influencing susceptibility or severity.
Source: MedlinePlus Genetics
Does Family History Matter for Pemphigus Vulgaris?
Family history can be informative for Pemphigus Vulgaris, but its predictive power is limited because many genes — each with small effects — combine with environmental influences. A family history of the condition may prompt earlier or more frequent screening.
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