Publication details

Responsiveness to i.v. immunoglobulin therapy in patients with toxic epidermal necrolysis: A novel pharmaco-immunogenetic concept

Authors

BOŘILOVÁ LINHARTOVÁ Petra GACHOVÁ Daniela LIPOVÝ Břetislav

Year of publication 2020
Type Article in Periodical
Magazine / Source JOURNAL OF DERMATOLOGY
MU Faculty or unit

Faculty of Medicine

Citation
web https://onlinelibrary.wiley.com/doi/10.1111/1346-8138.15583
Doi http://dx.doi.org/10.1111/1346-8138.15583
Keywords Fas receptor; gene variability; i; v; immunoglobulin therapy; pharmaco-immunogenetics; toxic epidermal necrolysis
Description Toxic epidermal necrolysis (TEN) represents a rare drug-induced autoimmune reaction with delayed-type hypersensitivity that initiates the process of developing massive keratinocyte apoptosis, dominantly in the dermoepidermal junction. Although the etiopathophysiology has not yet been fully elucidated, the binding of Fas ligand (FasL, CD95L) to the Fas receptor (CD95) was shown to play a key role in the induction of apoptosis in this syndrome. The knowledge of the role of immunoglobulin G (IgG) in inhibition of Fas-mediated apoptosis contributed to the introduction of i.v. Ig (IVIg) in the therapy of TEN patients. Despite great enthusiasm for this therapy at the end of the 1990s, subsequent studies in various populations and meta-analyses could not unequivocally confirm the efficacy of the IVIg-based treatment concept. Today, therefore, we are faced with the dilemmas of how to adjust therapy of TEN patients most effectively, which patients could benefit from IVIg therapy and what dose of the preparation should be administrated. The ground-breaking question is: do the host genetic profiles influence the responsiveness and side-effects of IVIg therapy in TEN patients? Based on recent pharmacological, immunological and genetic findings, we suggest that the variability of IVIg therapy outcomes in TEN patients may be related to functional variants inFas,FasLand Fc-gamma receptor genes. This novel concept could lead to improved quality of care for patients with TEN, facilitating personalized therapy to reduce mortality.

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