Allison C Billi, MD, PhD
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About
Dr. Allison C. Billi is an assistant professor in the University of Michigan Department of Dermatology. Her research aims to define how the skin contributes to systemic autoimmune disease through identifying female-biased pathways and factors in skin that are critical to autoimmunity. In addition, she provides medical dermatology care to patients of all ages within our outpatient clinic at the A. Alfred Taubman Health Care Center.
Dr. Billi is a graduate of the University of Michigan Medical School where she received her medical degree and her PhD in Human Genetics. Following graduation, she completed her transitional year at Beaumont Hospital in Dearborn, Michigan, and a dermatology residency and research fellowship at the University of Michigan Department of Dermatology.
Qualifications
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Research Fellowship in Cell & Molecular DermatologyUniversity of Michigan, Dermatology, Ann Arbor, United States
2018 - 2020
Postdoctoral Fellowship
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Dermatology residencyUniversity of Michigan, Dermatology, Ann Arbor, United States
2016 - 2019
Residency
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Transitional YearBeaumont Dearborn, United States
2015 - 2016
Internship
Center Memberships
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Center MemberTaubman Institute
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Center MemberSamuel and Jean Frankel Cardiovascular Center
Research Overview
Autoimmune disease shows a striking sex bias, affecting roughly eight times as many women as men, and represents the leading cause of morbidity among women in the United States. Development of new therapies that are safer and more effective than currently available options has been hampered by poor understanding of the mechanisms that cause autoimmune disease, including why women are so disproportionately affected. Furthermore, skin is one of the organs most commonly involved in autoimmune diseases, but the role of skin inflammation in driving these diseases remains largely unknown. The Billi Lab is working to define how the skin contributes to systemic autoimmune disease through identifying female-biased pathways and factors in skin that are critical to autoimmunity.
Current research includes investigating the biological mechanisms that lead to female sex bias in lupus. Using mouse modeling of complex human disease, systems biology applications, and approaches for study of cutaneous and systemic immunology, we are examining how the female-biased factor VGLL3 drives autoimmune disease in the skin of women and exploring whether this pathway could underlie the balance of female-biased autoimmunity and male-biased susceptibility to infection and neoplasm.
Recent Publications
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Blauvelt A, Jiang R, Shi L, Tsoi LC, Bogle R, Fox J, Gharaee-Kermani M, Billi AC, Matheson RT, Photowala H, Gudjonsson JE, Ehst BD. Nature Communications, 2026 Dec 1; 17 (1):Journal ArticleA randomized phase 2 clinical trial to treat moderate-to-severe plaque psoriasis patients with high-induction dosing of risankizumab
DOI:10.1038/s41467-025-67475-0 PMID: 41381642 -
Jiang R, Kirma J, Fox J, Xing X, Wang J, Sarkar MK, Bogle R, Do T, Coon A, Cole C, Plazyo O, Rew JE, Zhang H, Kahlenberg JM, Billi AC, Bachelez H, Tsoi LC, Harms PW, Shao S, Chen X, Gudjonsson JE. Nature Communications, 2026 Dec 1; 17 (1):Journal ArticleDynamic neutrophil-keratinocyte communication network centered on IL-36/TNFSF15 responses characterizes inflammatory responses in generalized pustular psoriasis
DOI:10.1038/s41467-025-67917-9 PMID: 41436466 -
Plazyo O, Gudjonsson J, Tsoi L, Billi A, Kahlenberg JM, Ward N, Dlugosz A, Syu L-J, Young K, Peela R, Bogle R, Erba J. 2026 Sep 1;Proceeding / Abstract / PosterNovel VGLL3-based mouse model of lupus converges with the Sle1/2/3 lupus mouse model on Hippo pathway modulation, immune activation, and fibrosis
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Zhou R, Patrick M, Marenholz I, Biobank E, Hakonarson H, Billi AC, Baker J, Gudjonsson JE, Schuler C, Tsoi LC. Journal of Investigative Dermatology, 2026 Jul 22; 146 (8): s22Journal Article0123 Shared genetic architecture of atopic dermatitis and food allergy revealed by multi-ancestry Trans-disease analysis
DOI:10.1016/j.jid.2026.06.154 -
Griffin E, Van Drongelen V, Rew JE, Gharaee-Kermani M, Gudjonsson JE, Tsoi LC, Kahlenberg M, Billi AC. Journal of Investigative Dermatology, 2026 Jul 23; 146 (8): s170Journal Article0983 VGLL3 regulates CCL20 in keratinocytes: Defining a novel, sex-biased mechanism in cutaneous lupus
DOI:10.1016/j.jid.2026.06.1014 -
Quan T, Wang F, Marella S, Billi AC, Qin Z, Weng S, Fu J, Gudjonsson JE, Voorhees JJ, Fisher GJ. Journal of Investigative Dermatology, 2026 Jul 16;Journal ArticleCollapsed fibroblasts in aged human skin in vivo - A critical driver of dermal aging
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Velez K, Osborne GA, Billi AC. Curr Opin Rheumatol, 2026 Jun 22;Journal ArticleNew approaches to the management of cutaneous lupus.
DOI:10.1097/BOR.0000000000001175 PMID: 42319220 -
Jiang R, Blauvelt A, Shi L, Tsoi LC, Bogle R, Fox J, Gharaee-Kermani M, Chen L, Zhang H, Xing X, Sarkar MK, Plazyo O, Kahlenberg JM, Billi AC, Matheson RT, Photowala H, Ehst BD, Gudjonsson JE. Immunity, 2026 Jun 9; 59 (6): 1758 - 1775.e6.Journal ArticleA longitudinal atlas of human psoriatic skin reveals the mechanisms of anti-IL-23 therapy in disrupting the type 17 inflammatory circuit
DOI:10.1016/j.immuni.2026.05.002 PMID: 42208526