Understanding the Mechanism of Action of Secukinumab Using Lesional Hidradenitis Suppurativa Skin Organ Culture

    Janin Edelkamp, Arnab Pal, J. Viola-Söhnlein, Markus Fehrholz, Edwige Nicodème, F. Bechara, Sylke Schneider‐Burrus, Valérie Julia, K. Pappelbaum, Marta Bertolini
    TLDR Secukinumab reduces immune activity in hidradenitis suppurativa skin.
    This study utilized a lesional hidradenitis suppurativa (HS) skin organ culture model to investigate the effects of the IL-17A inhibitor Secukinumab. Skin samples from 3 HS patients were treated with Secukinumab or an IgG control, and RNA sequencing was performed to analyze gene expression. The study found that Secukinumab significantly down-regulated genes associated with immune cell activation, such as FCGRA2 and CD11c, and suppressed IL-1 and TNFα pathways. These findings validate the use of the lesional HS skin organ culture model for testing HS therapies and provide insights into the mechanisms of Secukinumab's clinical efficacy in treating HS.
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