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American journal of human genetics · 2026

A highly prevalent lupus risk haplotype increases IRF7-dependent induction of IFN-α, enhancing antiviral defense and exacerbating autoimmunity.

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Virolainen Samuel J, Creighton Kathryn, Dashtiahangar Maryam, Krishnamurthy Durga, Parks Lois, Forney Carmy, Ampadu Britney, Rudrapatna Akshata N, Dunn Katelyn A, Parameswaran Sreeja, Hesse Hayley K, Chen Xiaoting, VonHandorf Andrew, Edsall Lee E, Yin Cailing, Lynch Arthur, Gittens Olivia, Diouf Arame A, Jones Sydney H, Hass Matthew, Javier Ellen, Donmez Omer, Keddari Yasine, Danzinger Oded, Seelamneni Harsha, Namjou-Khales Bahram, Ainsworth Hannah C, Comeau Mary E, Marion Miranda C, Glenn Stuart B, Nath Swapan K, Freedman Barry I, Tsao Betty P, Kamen Diane L, Brown Elizabeth E, Gilkeson Gary S, Alarcón Graciela S, Reveille John D, James Judith A, Criswell Lindsey A, Vilá Luis M, Alarcón-Riquelme Marta E, Petri Michelle, Scofield R Hal, Kimberly Robert P, Ramsey-Goldman Rosalind, Bae Sang-Cheol, Graham Deborah Cunninghame, Vyse Timothy J, Guthridge Joel M, Gaffney Patrick M, Langefeld Carl D, Kelly Jennifer A, Kaufman Kenneth M, Sivils Kathy L, Harley John B, Shen Nan, Lawson Lucinda P, Baglaenko Yuriy, Miraldi Emily R, Rosenberg Brad R, Siggers Trevor, Waggoner Stephen N, Weirauch Matthew T, Kottyan Leah C

Аннотация

Genome-wide association studies have identified genetic polymorphisms at 11p15 associated with systemic lupus erythematosus (lupus). Statistical fine mapping prioritizes a highly prevalent coding haplotype within IRF7. Analysis of ancient DNA confirms that this haplotype has persisted at high frequencies in the global population for millennia. The IRF7 risk haplotype is sufficient to increase nuclear localization of IRF7 and transcriptional activity downstream of pattern recognition receptor pathways. This risk haplotype increases IRF7 DNA-binding strength and alters IRF7 DNA sequence specificity, resulting in genotype-dependent increases in interferon-α production in numerous biological systems, including monocytes and airway epithelial cells. CRISPR engineering of the corresponding risk variant in mouse Irf7 results in both enhanced innate control of virus infection and increased autoantibody titers in a model of autoimmunity. Altogether, we establish a persistent and prominent IRF7 haplotype that amplifies IRF7 activity in a manner that has immunological risks and benefits.

ИП Урсолов Владлен Сергеевич

ИНН 500118482352 · ОГРНИП 314500117700049

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