Psoriasis is a chronic inflammatory skin condition that has a fairly wide range of clinical presentations. Plaque psoriasis, which is the most common manifestation of psoriasis, is located on one end of the spectrum, dominated by adaptive immune responses, whereas the rarer pustular psoriasis lies on the opposite end, dominated by innate and autoinflammatory immune responses. In recent years, genetic studies have identified six genetic variants that predispose to pustular psoriasis, and these have highlighted the role of IL-36 cytokines as central to pustular psoriasis pathogenesis. In this review, we discuss the presentation and clinical subtypes of pustular psoriasis, contribution of genetic predisposing variants, critical role of the IL-36 family of cytokines in disease pathophysiology, and treatment perspectives for pustular psoriasis. We further outline the application of appropriate mouse models for the study of pustular psoriasis and address the outstanding questions and issues related to our understanding of the mechanisms involved in pustular psoriasis.
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http://dx.doi.org/10.1038/s41423-020-0519-3 | DOI Listing |
SAGE Open Med Case Rep
January 2025
Faculty of Medicine, Division of Dermatology, University of Ottawa, Ottawa, ON, Canada.
Acrodermatitis continua of Hallopeau is a rare form of pustular psoriasis affecting the acral fingers and toes, characterized by recurrent eruptions of sterile pustules that lead to significant pain and potentially irreversible destruction of the nail apparatus. Symptoms are often refractory to topical and systemic therapies for psoriasis. This case report presents a healthy 23-year-old female with severe acrodermatitis continua of Hallopeau, destructing all 10 fingernails.
View Article and Find Full Text PDFBr J Dermatol
January 2025
Department of Dermatology, Yale University, New Haven, CT, USA.
Background: Generalised pustular psoriasis (GPP) is a chronic, systemic, neutrophilic inflammatory disease. A previous Delphi panel established areas of consensus on GPP, although patient perspectives were not included, and aspects of treatment goals remain unclear.
Objectives: To identify and achieve consensus on refined, specific treatment goals for GPP treatment via a Delphi panel with patient participation.
JAMA Dermatol
January 2025
Hopital Saint-Louis APHP, Paris Cité University, Paris, France.
JAMA Dermatol
January 2025
Waldman Department of Dermatology, Icahn School of Medicine at Mount Sinai, New York, New York.
Clin Cosmet Investig Dermatol
January 2025
Department of Dermatology, Hangzhou Third People's Hospital, Hangzhou, Zhejiang, People's Republic of China.
Generalized Pustular Psoriasis (GPP) is a rare, severe, life-threatening form of psoriasis and often resistant to conventional systemic therapy. It can be induced by deficiency of interleukin (IL)-36 receptor antagonist. Treatment of patients with GPP is often difficult, and there is no consensus on the best options available to date.
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