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Psoriasis Mouse Model (IL-23 Induced)

Perform quick efficacy tests to evaluate your novel psoriasis treatment strategies using the acute psoriasis mouse model

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Psoriasis Mouse Model Key Characteristics 

Preclinical psoriasis mouse models are essential tools for understanding the pathogenesis of psoriasis and evaluating the efficacy of novel therapeutic approaches ranging from topical to systemic treatments. Acute models, such as the IL-23 and Imiquimod-induced models, rapidly induce psoriasis-like symptoms, while chronic models mimic the long-term progression of the disease. 

The acute psoriasis model, created by intradermal ear injections of recombinant IL-23, leads to acute skin inflammation. IL-23, a key cytokine, promotes pathogenic lymphocytes that drive keratinocyte differentiation and inflammation, hallmarks of psoriasis. This model mimics human psoriasis features, such as inflammatory cell infiltration, epidermal hyperplasia, and activation of inflammatory pathways. 

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✓  Rapid induction of psoriasis-like symptoms.

✓  Phenotype exhibits key psoriasis hallmarks, including inflammatory cell infiltration and epidermal hyperplasia.

✓  Suitable for testing IL-23 inhibitors and other modulators of the IL-23-induced inflammation pathway.

Psoriasis-Mausmodell

As a preclinical immunology CRO, InnoSer offers relevant expertise to support various skin inflammation studies including psoriasis, atopic dermatitis, contact dermatitis, and scleroderma research. In accordance, our dermatological platform allows us to investigate the efficacy of your novel investigational compound(s) in similar models, including Imiquimod-induced psoriasis, Ovalbumin or Oxazole-induced atopic dermatitis, and the Bleomycin-induced scleroderma model. 

Take advantage of InnoSer’s collaborative approach to develop the most optimal study design. With flexible and fast study start times you can perform your research at an accelerated pace. By outsourcing your preclinical oncology studies to InnoSer, you gain access to our in vitro and in vivo immunology drug development portfolio. 

Psoriasis Mouse Model Sample Data

Key IL-23 Induced Mouse Model Readouts

Key readouts in the Psoriasis Mouse Model


Test the efficacy of your treatments in the IL-23-induced psoriasis mouse model with the following readouts 

  • Body weight determination, clinical observations 
  • Measurement of ear thickness (assessment of swelling)  
  • Blood collection for PK/PD analyses 
  • Biomarker analyses  
  • Histopathology (to determine the extent and presence of acanthosis, inflammatory cell infiltration, spongiosis, perivascular lymphocyte infiltration, vesicles and pustules, formation, and hyper-granulosis) 
  • Immunohistochemistry (e.g., FoxP3, CD34)  
  • Immune cell profiling (MSD, ELISA, flow cytometry, qPCR) 
  • Inflammatory cytokine analysis via MSD or ELISA

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Dr. Céline Erens, Studie zur Immunologie Leiterin

Ein Expertenteam unter der Leitung unseres Direktors für Immunologiestudien ; Céline Erens arbeitet eng mit Ihnen zusammen, um Sie bei der Einrichtung optimale Studienkonzepte zu entwickeln. Die Begleitung der präklinischen Tests Ihrer Leitverbindungen mit fundiertem Fachwissen ist der Schlüssel zur Beschleunigung Ihrer Arzneimittelentwicklung.

Dr. Yanick Fanton, wissenschaftlicher Leiter

Als Chief Science Officer bei InnoSer ist Yanick für alle Kundenstudien bei InnoSer verantwortlich und kümmert sich um die wissenschaftliche und technische Koordination.

Häufig gestellte Fragen

What is the IL-23 psoriasis mouse model?

The IL-23 psoriasis mouse model is a widely used preclinical model for studying psoriasis pathogenesis and treatment efficacy. It mimics the chronic inflammation and skin lesions seen in human psoriasis by leveraging the role of IL-23, a key cytokine in driving disease progression. Intradermal injection of IL-23 (into the ear) induces a psoriasis-like inflammatory response. IL-23 promotes Th17 cell activation, leading to increased IL-17 and IL-22 production, which drives keratinocyte proliferation and skin thickening. The model exhibits hallmark psoriasis symptoms, including epidermal hyperplasia, erythema, scaling, and immune cell infiltration.

What is the role of IL-23 in the treatment of psoriasis?
IL-23 is a key pro-inflammatory cytokine that plays a central role in psoriasis pathogenesis. It drives the activation and maintenance of Th17 cells, which produce IL-17 and IL-22, leading to keratinocyte proliferation, skin inflammation, and chronic immune activation. Because IL-23 is upstream in the inflammatory cascade, blocking its activity can interrupt disease progression at an early stage. IL-23 inhibition prevents the activation of Th17 cells, leading to broader and more sustained immunosuppression. IL-23 inhibitors have shown longer-lasting effects with less frequent dosing compared to IL-17 blockers (Menter et al., 2021). Several biologics have been developed to specifically inhibit IL-23, leading to long-lasting disease control (Gooderham et al., 2018).
Can this model be used to study both early and chronic stages of psoriasis?
Given that the IL-23 mouse model of psoriasis is induced by IL-23 injections over a short period of time, this model only mimics the acute phases of the human course of psoriasis. The advantage of this model is that it induces psoriasis-like symptoms (ear thickening, epidermal inflammation) in a rapid manner, thus allowing you to obtain quick efficacy data in a proof-of-concept setting. To mimic the chronic course of psoriasis, other models can be recommended (Gangwar et al., 2023).
What are the timelines and deliverables for studies using this model?
The IL-23 injection model is a rapid and effective method for inducing psoriatic inflammation in mice, typically completed in 8–10 days. The timeline and key endpoints comprise:
  • Day -3 to 0: Acclimatization, baseline measurements (ear thickness, weight, images).
  • Days 0-8: Intradermal IL-23 injection (right ear, every 2 days), PBS control (left ear). Monitor inflammation (swelling, redness, scaling).
  • Days 9-10: Final assessments, tissue collection.

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