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Updated: Jun 13, 2026
09:10
Intestinal Epithelial Regeneration in Response to Ionizing Irradiation
Published on: July 27, 2022
EGFR INHIBITION PROMOTES ENTEROENDOCRINE CELL DIFFERENTIATION CONTRIBUTING TO TREATMENT-ASSOCIATED DIARRHEA
Biorxiv : the Preprint Server for Biology
|June 12, 2026
Summary
Epidermal growth factor receptor inhibitors (EGFRi) promote enteroendocrine cell (EEC) differentiation by activating STAT1 signaling. This finding offers insights into treating gastrointestinal side effects and metabolic diseases.
Area of Science:
- Gastroenterology
- Cell Biology
- Pharmacology
Background:
- Enteroendocrine cells (EECs) are crucial for gut function and metabolism.
- Understanding EEC differentiation is key, but challenging due to their rarity.
Purpose of the Study:
- To identify novel regulators of human EEC differentiation.
- To investigate the mechanism of EGFR inhibitors in EEC differentiation.
Main Methods:
- High-throughput screening of FDA-approved drugs using human duodenal organoids.
- Analysis of patient cohorts and mouse models.
- Investigating molecular pathways including interferon (IFN) and STAT1 signaling.
Main Results:
- Erlotinib and lapatinib (EGFR inhibitors) significantly increased EEC differentiation markers (e.g., CHGA).
- EGFRi treatment led to broad upregulation of EEC hormones (serotonin, motilin, somatostatin).
- EGFRi induced IFN signaling and STAT1 activation, crucial for EEC differentiation.
Conclusions:
- EGFR inhibition promotes human intestinal stem cell (ISC) to EEC differentiation via STAT1 activation.
- Findings may inform strategies for managing EGFR inhibitor-associated diarrhea (EAD) and metabolic disorders.
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