Diabetic foot ulcers (DFU) are one of the major complications in type II diabetes patients and can result in amputation and morbidity. Although multiple approaches are used clinically to help wound closure, many patients still lack adequate treatment. Here we show that IL-20 subfamily cytokines are upregulated during normal wound healing. While there is a redundant role for each individual cytokine in this subfamily in wound healing, mice deficient in IL-22R, the common receptor chain for IL-20, IL-22, and IL-24, display a significant delay in wound healing. Furthermore, IL-20, IL-22 and IL-24 are all able to promote wound healing in type II diabetic db/db mice. When compared to other growth factors such as VEGF and PDGF that accelerate wound healing in this model, IL-22 uniquely induced genes involved in reepithelialization, tissue remodeling and innate host defense mechanisms from wounded skin. Interestingly, IL-22 treatment showed superior efficacy compared to PDGF or VEGF in an infectious diabetic wound model. Taken together, our data suggest that IL-20 subfamily cytokines, particularly IL-20, IL-22, and IL-24, might provide therapeutic benefit for patients with DFU.
IL-22R Ligands IL-20, IL-22, and IL-24 Promote Wound Healing in Diabetic db/db Mice.
Treatment, Time
View SamplesWe aimed to identify genes that are regulated by FGFR1 in brown adipose tissues of adult male ob/ob mice by injecting 1 mg/kg anti-FGFR1 agonistic antibody.
Amelioration of type 2 diabetes by antibody-mediated activation of fibroblast growth factor receptor 1.
Sex, Age, Specimen part
View SamplesIL-22 acts on epithelial cells and has been shown to induce tissue protective and wound healing responses in these cells. But it has recently been decribed that IL-22 exacerbates ileatis after infection with T. gondii.
Interleukin-22 induces interleukin-18 expression from epithelial cells during intestinal infection.
Specimen part, Time
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