In IMQ-induced psoriasis mice, Lactiplantibacillus plantarum GMNL-77 reduced the proportion of IL-17A+CD4+ T cells and decreased the expression of inflammatory factors such as TNF-α, IL-23, and IL-17A, leading to amelioration of erythematous and scaly lesions (Chen et al., 2017). Here, IL23A is linked to psoriasis.