Skin toxicity caused by EGFR antagonists-an autoinflammatory condition triggered by deregulated IL-1 signaling?
Related Experiment Video
Updated: Jul 1, 2026

Granulocyte-dependent Autoantibody-induced Skin Blistering
Published on: October 12, 2012
1Department of Dermatology, Cutaneous Biology and Kimmel Cancer Center, Thomas Jefferson University, Philadelphia, Pennsylvania, USA. ulrich.rodeck@mail.tju.edu
Abstract:
Acneiform skin eruptions associated with sterile inflammation frequently accompany pharmacological inhibition of signaling through the epidermal growth factor receptor (EGFR) in cancer patients. Here we discuss possible pathogenic mechanisms for this phenomenon linked to control of inflammatory mediators by EGFR blockade in keratinocytes of the outer root sheath of the hair follicle. This discussion is focused on the putative role of EGFR activation in restraining interleukin (IL)-1-dependent inflammatory networks at the hair follicle.
Insights
Epidermal growth factor receptor (EGFR) blockade in cancer patients can cause acne-like skin issues. This occurs due to EGFR
Area of Science:
- Dermatology
- Oncology
- Molecular Biology
Background:
- Acne-like skin eruptions are a common side effect of EGFR inhibitor cancer therapies.
- These eruptions are characterized by sterile inflammation.
Purpose of the Study:
- To explore the mechanisms behind EGFR inhibitor-induced acneiform eruptions.
- To investigate the role of EGFR signaling in hair follicle inflammation.
Main Methods:
- Discussion of pathogenic mechanisms.
- Focus on EGFR blockade in outer root sheath keratinocytes.
- Analysis of interleukin-1-dependent inflammatory networks.
Main Results:
- EGFR signaling appears to restrain inflammatory mediators.
- EGFR blockade may disrupt the control of inflammation at the hair follicle.
Conclusions:
- EGFR plays a role in regulating inflammatory responses in the hair follicle.
- Understanding this mechanism could lead to better management of skin toxicities in cancer patients.
Related Concept Videos
Drug Toxicity: Allergic Reactions
Receptor Downregulation in MVBs
The EGFR can initiate signaling pathways that lead to cell proliferation, migration, and differentiation. Overexpression of EGFR stimulates cells to proliferate. Excessive EGFR activation may...
Inflammatory Bowel Disease III: Crohn's Disease
T Cell Types and Functions
Th1 cells stimulate dendritic cells to express necessary co-stimulatory molecules on their surfaces for...
Mitogens and the Cell Cycle
Allergic Reactions
