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Valentina Celoria,* Francois Rosset,* Valentina Pala, Paolo Dapavo, Simone Ribero, Pietro Quaglino, Luca Mastorino Dermatologic Clinic, Department of Medical Sciences, University of Turin, Turin, Italy*These authors contributed equally to this workCorrespondence: Valentina Celoria, Dermatologic Clinic, Department of Medical Sciences, University of Turin, Turin, Italy, Email valentina.celoria@edu.unito.itAbstract: The skin microbiome is made of various microorganisms, most of which have the function of protecting individuals from harmful pathogens, and they are involved in innate and adaptive immune responses. The skin acts as a physical and immunological barrier against external stimuli, including pathogens and physical damage. Changes in the composition of the skin microbiome can trigger inflammatory processes leading to inflammatory skin diseases in susceptible individuals. Psoriasis (PsO) is a chronic inflammatory disease with a multifactorial etiology, where breakdown of immune tolerance to cutaneous microorganisms is implicated in its pathogenesis. Dysregulation of the microbiome due to genetic and environmental factors plays a significant role in the development of psoriatic disease. Dermatologic conditions such as atopic dermatitis, acne, psoriasis, and rosacea have been associated with intestinal dysbiosis. The skin microbiota composition is crucial for the development of appropriate immune responses, and alterations in the skin microbiome can contribute to changes in physiology and susceptibility to skin diseases or inflammatory conditions. Understanding the microbial settlement of the skin and the network of interactions that occur throughout life is essential for comprehending the pathogenesis of skin diseases and developing innovative treatments. With this article we tried to explore the relationship between the human microbiome and psoriatic disease, shedding light on the functions of the microbiome and the inflammatory disease processes to identify additional therapeutic targets. This review aims to highlight the relationship between skin and gut microbiome functions and inflammatory processes in skin psoriasis and psoriatic arthritis (PsA). The goal is to facilitate future studies on the skin microbiome to identify potential novel therapies for patients with psoriatic disease.Keywords: psoriasis, skin microbiome, new therapies, gut microbiome, molecular precision medicines, next generation treatments

Introduction: Psoriasis affecting the genital, palmoplantar, and scalp regions is recognized as difficult-to-treat, and data on the efficacy of biologics in these areas remains limited., Research Design and Methods: This single-center study evaluated the effectiveness of anti-IL-17 and anti-IL-23 agents on scalp, genital, and palmoplantar psoriasis. We retrospectively analyzed data from all patients with psoriasis being treated with IL inhibitors at our clinic. Effectiveness was evaluated at 16, 28, and 52 weeks, according to the achievement of relative and mean PSSI, PGA-G, and ppPASI., Results: In all, 308 patients showed involvement of the scalp, 136 in the genital area, and 94 in the palmoplantar regions. On scalp psoriasis, anti-IL-17 agents demonstrated superiority in disease control compared to anti-IL-23 agents. PSSI100 at week 16 was reached by 59% of patients on an anti-IL17 vs 39.8% on an anti-IL-23 ( p  < 0.003). At genital sites, no significant differences between anti-IL-17 and anti-IL-23 agents were observed, and all classes achieved PGA-G 0/1. No significant differences between anti-IL-17 and anti-IL-23 agents were observed in palmoplantar areas., Conclusions: The present data support the utility of both anti-IL-17 and anti-IL-23 agents for the treatment of difficult-to-treat areas in patients with psoriasis. Anti-IL-17 agents achieved better control of scalp psoriasis.

Mesorectal lipoma is a rare, usually asymptomatic tumor. The best treatment is R0 resection but the previous literature reports different approaches. Robotic surgery allows for an accurate intervention, with a faster postoperative course, less risk of infection and need for transfusions, a faster return to normal daily activities and the best esthetic result. We describe a case of a 43-year-old female with a large lipoma with dislocation of the vagina, rectum and distal sigmoid colon, potentially malignant, successfully treated by robotic excision, which was safe, effective and well tolerated by the patient., (Published by Oxford University Press and JSCR Publishing Ltd. All rights reserved. © The Author(s) 2022.)