Targeted therapy of the insulin-like growth factor-1 receptor in cancer
1Department of Tumor Biology, ImClone Systems Incorporated, New York, NY 10014, USA. keren.paz@imclone.com
Abstract:
Recently, significant progress has been made towards understanding the pathogenesis of cancer from the molecular standpoint. To this end, a growing number of approaches are being exploited for the identification and validation of new therapeutic targets suitable for potent and specific intervention. The type 1 insulin-like growth factor receptor (IGF-1R) system has recently become the focus of major attention in the arena of cancer research. The involvement of the receptor and its downstream signaling cascades in the carcinogenesis process makes this system an excellent target for potential cancer therapy. Indeed, advances in the understanding of the molecular mechanisms behind IGF-1R activation have led to the discovery of agents designed selectively for targeting IGF-1R. The potential application of these inhibitors is currently under intense clinical investigation. This review describes the biology of IGF-1R particularly from a cancer perspective. The attempts to develop effective IGF-1R antagonists are discussed comprehensively with special emphasis on antibodies and small tyrosine kinase inhibitors.
Insights
The insulin-like growth factor 1 receptor (IGF-1R) is crucial in cancer development. This review explores IGF-1R biology and targeted therapies, including antibodies and kinase inhibitors, for cancer treatment.
Area of Science:
- Molecular oncology
- Cancer biology
- Pharmacology
Background:
- Cancer pathogenesis is increasingly understood at the molecular level.
- The type 1 insulin-like growth factor receptor (IGF-1R) system is implicated in carcinogenesis.
- IGF-1R signaling pathways play a significant role in cancer development and progression.
Purpose of the Study:
- To review the biology of the IGF-1R system in the context of cancer.
- To discuss the development and therapeutic potential of IGF-1R antagonists.
- To highlight agents targeting IGF-1R, including antibodies and small molecule inhibitors.
Main Methods:
- Comprehensive literature review focusing on IGF-1R biology and cancer.
- Analysis of molecular mechanisms underlying IGF-1R activation and signaling.
- Evaluation of therapeutic strategies targeting the IGF-1R pathway.
Main Results:
- The IGF-1R system is a validated target for cancer therapy due to its role in carcinogenesis.
- Development of specific agents, including antibodies and tyrosine kinase inhibitors, targeting IGF-1R has advanced.
- These IGF-1R inhibitors are under active clinical investigation for various cancers.
Conclusions:
- The IGF-1R pathway represents a promising target for novel cancer therapeutics.
- Targeted inhibition of IGF-1R offers a potential strategy for potent and specific cancer intervention.
- Ongoing clinical trials will determine the efficacy and application of IGF-1R antagonists in cancer treatment.
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