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. 2022 Feb 18;13:844756. doi: 10.3389/fphar.2022.844756

FIGURE 4.

FIGURE 4

A simplified scheme illustrates the role of TNF-α on autophagy in atopic dermatitis and psoriasis pathogenesis. Upon inflammation in the epidermis, TNF-α reduces the enzymatic activity of lysosomal cathepsins, leading to lysosomal dysfunction which ultimately results in autophagy suppression. This process could contribute to the chronicity of cutaneous inflammatory disorders.