Would Cyclosporin A Be Beneficial to Mitigate Drug-Induced Toxic Epidermal Necrolysis?

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Abstract
Drug-induced toxic epidermal necrolysis (TEN) is a rare life-threatening disease whose mortality remains high. The treatment of the disease is badly settled. Several kinds of drugs have been tested, including systemic corticosteroids, cyclophosphamide, pentoxifylline and thalidomide, but without any clear-cut outcome. Cyclosporin A (CsA) has many inhibitory effects on the main cell populations involved in TEN (T lymphocytes, macrophages and keratinocytes). CsA could also act on tumor necrosis factor α metabolism, a cytokine which is important in TEN epidermal destruction. Moreover, apoptosis is the mechanism leading to keratinocyte death and CsA has antiapoptotic properties. CsA has already been used successfully on a limited series of TEN patients. We have reviewed the potential theoretical useful effects of CsA in TEN. We conclude that CsA could be a good candidate to reverse TEN progression.