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Updated: Jul 13, 2025
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Mimicking the Function of Signaling Proteins: Toward Artificial Signal Transduction Therapy
Published on: September 29, 2016
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The IGF1 Signaling Pathway: From Basic Concepts to Therapeutic Opportunities
1Department of Human Molecular Genetics and Biochemistry, School of Medicine, Tel Aviv University, Tel Aviv 69978, Israel.
International Journal of Molecular Sciences
|October 14, 2023
Summary
Insulin-like growth factor 1 receptor (IGF1R) plays a key role in cell growth and metabolism. Its nuclear functions and interaction with cancer pathways make IGF1R a promising oncology target.
Area of Science:
- Molecular Biology
- Cell Biology
- Oncology
Background:
- Insulin-like growth factor 1 (IGF1) regulates growth, development, and metabolism.
- IGF1 exerts its effects via the IGF1 receptor (IGF1R), a protein related to the insulin receptor (InsR).
- IGF1 binding proteins (IGFBPs) modulate IGF1 activity in circulation and extracellular fluids.
Purpose of the Study:
- To review key scientific developments in IGF research.
- To highlight recent findings on IGF1R, including its nuclear migration and interactions.
- To discuss the potential of IGF1R as an oncology target.
Main Methods:
- Literature review of scientific developments in IGF research.
- Analysis of recent findings on IGF1R function and localization.
- Exploration of IGF1R's role in cancer biology.
Main Results:
- IGF1R signaling is linked to MAPK and PI3K pathways.
- IGF1R has been observed to translocate to the cell nucleus, acting as a transcriptional activator.
- Co-localization of IGF1R and MAPK in the nucleus suggests novel signaling mechanisms.
- IGF1R exhibits anti-apoptotic and pro-survival roles.
- IGF1R is widely expressed in various cancer types.
Conclusions:
- IGF1R's nuclear functions and interaction with oncogenes/tumor suppressors are of significant interest.
- The anti-apoptotic and pro-survival roles of IGF1R, coupled with its expression in cancer, position it as a promising molecular target in oncology.
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