ErbB receptors: directing key signaling networks throughout life
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Updated: Aug 29, 2026

Light-mediated Reversible Modulation of the Mitogen-activated Protein Kinase Pathway during Cell Differentiation and Xenopus Embryonic Development
Published on: June 15, 2017
1Friedrich Miescher Institute for Biomedical Research, 4002 Basel, Switzerland. holbro@fmi.ch
Abstract:
The epidermal growth factor (EGF)-related peptides bind the ErbB receptors, inducing the formation of different homo- and heterodimers. Receptor dimerization promotes activation of the intrinsic kinase, leading to phosphorylation of specific tyrosines located in the ErbB's cytoplasmic region. These phosphorylated residues serve as docking sites for a variety of signaling molecules whose recruitment stimulates intracellular signaling cascades, which ultimately control diverse genetic programs. Particular ligand-receptor complexes have essential roles in embryonic development as well as in the adult. Finally, ErbB receptors are being pursued as therapeutic targets because aberrant ErbB activity has been observed in many human cancers. In this review, we discuss these data in more detail, illustrating the importance of tightly regulated ErbB signaling throughout life.
Insights
Epidermal growth factor (EGF)-related peptides activate ErbB receptors, initiating signaling cascades crucial for development and cellular functions. Dysregulated ErbB signaling is implicated in various cancers, making it a key therapeutic target.
Area of Science:
- Cellular signaling pathways
- Molecular biology
- Cancer research
Background:
- Epidermal growth factor (EGF)-related peptides are key signaling molecules.
- ErbB receptors play critical roles in cellular communication.
Purpose of the Study:
- To review the molecular mechanisms of ErbB receptor activation and signaling.
- To highlight the role of ErbB signaling in development and disease.
- To discuss ErbB receptors as therapeutic targets in oncology.
Main Methods:
- Review of existing literature on ErbB signaling pathways.
- Analysis of molecular interactions between EGF peptides and ErbB receptors.
- Discussion of clinical relevance and therapeutic strategies.
Main Results:
- Ligand binding induces ErbB receptor dimerization and kinase activation.
- Phosphorylated tyrosines act as docking sites for signaling molecules.
- ErbB signaling regulates gene expression controlling cell growth and differentiation.
Conclusions:
- Tightly regulated ErbB signaling is essential for normal embryonic development and adult homeostasis.
- Aberrant ErbB activity is a hallmark of many human cancers.
- Targeting ErbB receptors offers a promising therapeutic avenue for cancer treatment.
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