Clinical Report: Characterization of Psoriasis Endotypes through T Helper 17 Cells and Group 3 Innate Lymphoid Cells

Background

Psoriasis is a chronic inflammatory skin disease characterized by complex interactions between innate and adaptive immune pathways. The IL-23/IL-17 axis plays a central role in its pathophysiology, with Th17 cells and ILC3s being significant contributors to inflammation.

Data Highlights

No numerical or trial data is provided in the source material.

Key Findings

• Th17 cells and ILC3s produce IL-17A, IL-17F, and IL-22, driving keratinocyte activation and inflammation in psoriasis.
• ILC3s provide a rapid, antigen-independent source of IL-17 and IL-22, while Th17 cells contribute to chronic inflammation through antigen-driven responses.
• The interplay between Th17 cells and ILC3s creates a self-amplifying inflammatory circuit in psoriatic lesions.
• Psoriasis may comprise immunological endotypes where either Th17 cells or ILC3s predominate.
• Redundancy between Th17 cells and ILC3s ensures robust IL-17 production.

Clinical Implications

Understanding the roles of Th17 cells and ILC3s in psoriasis is important.

Conclusion

The characterization of Th17 cells and ILC3s in psoriasis enhances understanding of the disease's pathophysiology.

Related Resources & Content

1. Frontiers | T helper 17 (Th17) cells and group 3 innate lymphoid cells (ILC3s) define a spectrum of psoriasis endotypes
2. conexiant — Psoriasis–AD Switching May Mimic Treatment Failure
3. Frontiers in Immunology — Psoriasis as a systemic inflammatory disease: an immune set-point framework for comorbidities and relapse
4. Blood Cancer Journal — Transmission of psoriasis by allogeneic bone marrow transplantation and blood transfusion
5. Brain — Role of CD5 signalling for pro-inflammatory Th17 response in multiple sclerosis
6. S3 Guideline for the treatment of psoriasis vulgaris, adapted from EuroGuiDerm – part 1: Treatment recommendations and monitoring
7. Psoriasis as a systemic inflammatory disease: an immune set-point framework for comorbidities and relapse
8. Transmission of psoriasis by allogeneic bone marrow transplantation and blood transfusion
9. Systemic pharmacological treatments for chronic plaque psoriasis: a network meta-analysis - PubMed
10. Frontiers | T helper 17 (Th17) cells and group 3 innate lymphoid cells (ILC3s) define a spectrum of psoriasis endotypes