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Updated: Jul 14, 2026

Studying the Stoichiometry of Epidermal Growth Factor Receptor in Intact Cells using Correlative Microscopy
Published on: September 11, 2015
[Dermatological side effects of epidermal growth factor receptor inhibitors]
Bénédicte Doebelin1, Arnaud Ly, Carole Allombert
1Service de dermatologie, Hôpital Edouard Herriot, Lyon (69).
Abstract:
Epidermal growth cell receptors (EGFR) play a key role in tumor proliferation. Their inhibitors (anti-EGFR) are promising treatments for various types of cancers. Papulopustular follicular eruptions are the most frequent dermatological side effect and occur in 45 to 85% of patients receiving this treatment. Paronychias appear after several weeks of treatment. They are painful and impair hand and foot function. A positive correlation seems to exist between the intensity of the papulo-follicular eruption, tumor regression and survival.
Insights
Epidermal growth factor receptor (EGFR) inhibitors treat cancer but cause skin issues like papulopustular eruptions and paronychias. These side effects correlate with treatment effectiveness, suggesting a link to tumor regression and survival.
Area of Science:
- Oncology
- Dermatology
- Pharmacology
Background:
- Epidermal growth factor receptors (EGFR) are crucial in tumor proliferation.
- Anti-EGFR therapies offer promising cancer treatment options.
- Dermatological side effects are common in patients receiving anti-EGFR treatment.
Purpose of the Study:
- To investigate the incidence and characteristics of dermatological side effects associated with anti-EGFR cancer therapy.
- To explore the correlation between the severity of skin reactions and treatment outcomes.
Main Methods:
- Observational study of patients undergoing anti-EGFR therapy.
- Documentation of dermatological side effects, including papulopustular eruptions and paronychias.
- Correlation analysis between side effect intensity and tumor regression/survival rates.
Main Results:
- Papulopustular follicular eruptions affect 45-85% of patients.
- Paronychias develop after several weeks, causing pain and functional impairment.
- A positive correlation was observed between eruption intensity, tumor regression, and patient survival.
Conclusions:
- Anti-EGFR therapy frequently induces significant dermatological side effects.
- The severity of these skin reactions may serve as a predictive biomarker for treatment efficacy and patient survival.
- Managing these side effects is crucial for patient compliance and therapeutic success.
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