Key factors to establish the ovalbumin-induced atopic dermatitis minipig model: age and body weightopen access
- Authors
- Kim, Young Kyu; Lee, JuKyung; Kim, Hyeon-Young; Kim, Sung-Hwan; Hwang, Jeong Ho; Suh, Han Na
- Issue Date
- Oct-2022
- Publisher
- SPRINGERNATURE
- Keywords
- Yucatan minipig; Atopic dermatitis; Ovalbumin; Age; body weight; Dermal thickness
- Citation
- LABORATORY ANIMAL RESEARCH, v.38, no.1
- Journal Title
- LABORATORY ANIMAL RESEARCH
- Volume
- 38
- Number
- 1
- URI
- https://scholarworks.bwise.kr/kumoh/handle/2020.sw.kumoh/28413
- DOI
- 10.1186/s42826-022-00141-4
- ISSN
- 1738-6055
2233-7660
- Abstract
- Background Given its similar structure and immune response to the human skin, porcine is a good model for dermal studies. Here, we sensitized ovalbumin (Ova) on minipig back skin for 2-4 weeks to induce chronic atopic dermatitis (AD). Results Gross observation, serum cytokine level, epidermal thickness, and epidermal integrity did not change after 4 weeks of Ova induction compared with the control, indicating AD modeling failure. Only the neutrophils in the blood and macrophages in bronchoalveolar lavage fluid changed slightly until 3 or 2 weeks after Ova sensitization, respectively. The successful and failed Ova-induced AD minipig models only differ in age and body weight of the minipigs. The minipigs, 12 months old with a 30-kg median weight, had a two-fold thicker dermis than minipigs 8-10 months old, with an 18.97-kg median weight, resulting in impaired Ova permeability and immune response. Conclusion Age and body weight are key factors that should be considered when developing an Ova-induced AD minipig model.
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