Deregulation of cell-death pathways as the cornerstone of skin diseases
N Zutterman1, H Maes, S Claerhout
1Laboratory of Dermatology, Catholic University of Leuven, Herestraat 49, Bus 724, B-3000 Leuven, Belgium.
Abstract:
Deregulation of cell-death pathways plays a key role in the pathogenesis of various skin diseases. The different types of cell death are mainly defined by morphological criteria, and include apoptosis, autophagic cell death, and necrosis. The process of apoptosis is well characterized at the molecular level and involves the activation of two main pathways, the intrinsic and extrinsic pathways, converging into the execution of apoptosis by intracellular cysteine proteases, called caspases. The relevance and implication of these apoptotic pathways in the pathophysiology of skin diseases, such as toxic epidermal necrolysis, graft-versus-host disease and skin cancer, has been extensively studied. The role of autophagic cell death in progression of skin tumours and response to cytotoxic drugs is only beginning to be elucidated.
Insights
Cell death pathways are crucial in skin disease. Apoptosis is well-studied in conditions like skin cancer, while autophagic cell death is emerging in tumor progression.
Area of Science:
- Dermatology
- Cell Biology
- Pathophysiology
Background:
- Cell death pathway deregulation is central to skin disease pathogenesis.
- Apoptosis, autophagic cell death, and necrosis are key cell death types.
- Apoptosis involves intrinsic and extrinsic pathways converging on caspases.
Purpose of the Study:
- To review the role of apoptosis in skin diseases.
- To highlight the emerging role of autophagic cell death in skin tumors.
Main Methods:
- Literature review of apoptosis and autophagic cell death in skin diseases.
- Analysis of molecular mechanisms and clinical implications.
Main Results:
- Apoptosis is implicated in toxic epidermal necrolysis, graft-versus-host disease, and skin cancer.
- The role of autophagic cell death in skin tumor progression and drug response is under investigation.
Conclusions:
- Understanding cell death pathways is vital for treating skin diseases.
- Further research into autophagic cell death could reveal new therapeutic targets for skin cancers.
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