Therapeutic strategies for eosinophilic dermatoses

Area of Science:

• Dermatology
• Immunology
• Pharmacology

Background:

• Eosinophils infiltrate numerous skin diseases, contributing to pathogenesis via microbial defense, inflammation regulation, tissue damage, remodeling, fibrosis, and pruritus.
• Their multifaceted role highlights eosinophils as critical targets for therapeutic intervention in dermatological conditions.

Purpose of the Study:

• To review current and emerging therapeutic strategies targeting eosinophils in skin diseases.
• To summarize novel agents directly affecting eosinophils currently under clinical investigation.

Main Methods:

• Review of existing literature on eosinophil involvement in skin diseases.
• Analysis of therapeutic strategies targeting eosinophil production, activation, survival, and mediators.
• Summary of clinical investigations for novel eosinophil-targeting agents.

Main Results:

• Strategies include targeting eosinophil production/survival (e.g., anti-IL-5 antibodies, Siglec-8), activation (e.g., Janus kinase inhibitors), and mediators (e.g., IL-13, IL-31, TSLP, eotaxins).
• Agents like dexpramipexole and tyrosine kinase inhibitors have demonstrated efficacy in reducing eosinophil counts in hypereosinophilia.
• Several novel agents directly affecting eosinophils are progressing through clinical trials.

Conclusions:

• Targeting eosinophils represents a viable therapeutic approach for a wide range of skin diseases.
• Ongoing research and clinical trials are exploring innovative strategies to modulate eosinophil activity for improved patient outcomes.