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Science
January 2025
Department of Dermatology, University of Pittsburgh, Pittsburgh, PA, USA.
Itch is a dominant symptom in dermatitis, and scratching promotes cutaneous inflammation, thereby worsening disease. However, the mechanisms through which scratching exacerbates inflammation and whether scratching provides benefit to the host are largely unknown. We found that scratching was required for skin inflammation in mouse models dependent on FcεRI-mediated mast cell activation.
View Article and Find Full Text PDFEur J Pharmacol
January 2025
Graduate Program in Pharmacology, Federal University of Santa Catarina (UFSC), 88037-000 - Florianópolis (SC), Brazil. Electronic address:
Dithranol is one of the most effective topical medications for treating plaque psoriasis. However, its clinical use is limited by irritative adverse reactions to the skin, such as oedema, erythema, and pruritus, caused by poorly understood mechanisms. Because TRPV1 activation mediates skin irritation caused by several drugs, we conducted blind and randomised experiments in male and female C57BL/6 mice to elucidate the role of TRPV1 in dithranol-induced irritation.
View Article and Find Full Text PDFAnnu Rev Med
January 2025
Division of Dermatology, University College Cork, The National University of Ireland, Cork, Ireland; email:
Hidradenitis suppurativa (HS) is a chronic inflammatory skin disease characterized by the formation of nodules, abscesses, and fistulae at intertriginous sites. Pain, pruritus, malodor, and suppuration have a significant impact on quality of life for HS patients. Prevalence figures vary greatly in the literature from 0.
View Article and Find Full Text PDFPigment Cell Melanoma Res
January 2025
Department of Dermatology, Faculty of Medicine, Cairo University, Giza, Egypt.
Vitiligo pathogenesis is complex. There is some evidence in support of the neurohormonal pathways involved. Although considered a nonpruritic condition, some patients may experience itching, which can occur ahead of the appearance of the patches.
View Article and Find Full Text PDFFront Immunol
January 2025
Department of Pain Management, The State Key Specialty in Pain Medicine, The Second Affiliated Hospital, Guangzhou Medical University, Guangzhou, China.
Background: The nod-like receptor family pyrin domain-containing 3 (NLRP3) has been implicated in various skin diseases. However, its role in mediating 2, 4-dinitrofluorobenzene (DNFB)-induced chronic itch remains unclear.
Methods: Widetype () and deletion ( )mice, the expression of transient receptor potential (TRP) ankyrin 1 (TRPA1) inhibitor or recombinant mice interleukin-18 (IL-18) were used to establish and evaluate the severity of DNFB-mediated chronic itch.
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