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Updated: Feb 11, 2026
11:39
The Goeckerman Regimen for the Treatment of Moderate to Severe Psoriasis
Published on: July 11, 2013
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Topically applied azaphenothiazines inhibit experimental psoriasis in mice
Jolanta Artym1, Maja Kocięba1, Ewa Zaczyńska1
1Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, Wrocław, Poland.
International Immunopharmacology
|April 21, 2018
Summary
Two novel azaphenothiazine derivatives show therapeutic potential for psoriasis. These compounds reduced inflammatory skin symptoms and pathological changes in a mouse model, offering a promising avenue for new treatments.
Area of Science:
- Pharmacology
- Dermatology
- Immunology
Background:
- Psoriasis is a chronic inflammatory skin disease.
- Current treatments have limitations.
- Azaphenothiazine derivatives are being explored for therapeutic potential.
Purpose of the Study:
- To investigate the therapeutic efficacy of two azaphenothiazine derivatives (compound 4 and compound 5) in an imiquimod-induced psoriasis mouse model.
- To compare their effects with clobetasol propionate (Clobederm®).
Main Methods:
- Topical application of azaphenothiazine derivatives in a mouse model of imiquimod-induced psoriasis.
- Histopathological analysis of skin tissues (epidermis and dermis).
- Assessment of systemic anti-inflammatory effects (leukocyte count, lymph node weight, blood cell composition).
- In vitro inhibition of tumor necrosis factor α (TNF α), IL-8, and CXCL10.
- Evaluation of proapoptotic properties in colonic cell lines.
Main Results:
- Both compounds thinned the epidermis and reduced cell layers, with stronger suppressive effects on dermal pathology.
- Systemic anti-inflammatory effects observed, including decreased leukocytes and normalized blood cell composition.
- Both compounds inhibited TNF α production; compound 5 showed stronger inhibition of IL-8 and CXCL10.
- Compound 5 exhibited proapoptotic properties, unlike compound 4.
Conclusions:
- The investigated azaphenothiazine derivatives demonstrate significant therapeutic potential for ameliorating skin pathology in a mouse model of psoriasis.
- Compound 5 shows broader anti-inflammatory and specific chemokine inhibitory effects compared to compound 4.
- Further research into these compounds could lead to novel psoriasis treatments.
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