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Putting together the psoriasis puzzle: an update on developing targeted therapies
Leanne M Johnson-Huang1, Michelle A Lowes, James G Krueger
1The Rockefeller University, Laboratory for Investigative Dermatology, New York, NY 10065, USA.
Disease Models & Mechanisms
|June 26, 2012
Summary
Psoriasis vulgaris pathogenesis involves immune system pathways like IL-23 and Th17 cells. Targeted biologic therapies, especially those blocking IL-17 signaling, show promise for treating this chronic skin disease.
Area of Science:
- Immunodermatology
- Pathogenesis of skin diseases
- Translational research in dermatology
Background:
- Psoriasis vulgaris is a chronic, immune-mediated skin condition affecting millions globally.
- While no perfect mouse model exists, patient skin studies reveal key immune pathways in psoriasis.
- Genetic studies link psoriasis to NFκB, IL-23 signaling, T helper 17 (Th17) cells, and epidermal barrier genes.
Purpose of the Study:
- To review the understanding of psoriasis pathogenesis.
- To highlight the role of the immune system, particularly the IL-23-Th17 axis.
- To discuss the impact of targeted therapies on disease understanding.
Main Methods:
- Review of mouse and patient-based studies on psoriasis pathogenesis.
- Analysis of genetic studies identifying susceptibility loci.
- Evaluation of clinical trial outcomes for immunomodulatory therapies.
Main Results:
- Immune system activation, especially Th17 cells and IL-23 signaling, is central to psoriasis.
- Biologic agents targeting specific immune components demonstrate high efficacy.
- Therapies blocking IL-17 signaling show significant promise in clinical trials.
Conclusions:
- Understanding psoriasis pathogenesis has advanced through integrated patient and experimental studies.
- Targeted immunotherapies, particularly those focused on the IL-23-Th17 axis, are transforming psoriasis treatment.
- Clinical outcomes of novel therapies provide critical insights into disease mechanisms.
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