Targeting IGF-1R in the treatment of sarcomas: past, present and future
Su Young Kim1, Xiaolin Wan, Lee J Helman
1Pediatric Oncology Branch, National Cancer Institute, National Institutes of Health, Bethesda, Maryland 20892, USA. kimsuyou@mail.nih.gov
Abstract:
The use of multimodality therapy has resulted in markedly improved cure rates for patients with sarcomas in the past 25 years. However, for virtually all patients with metastatic or recurrent disease, survival remains dismal. The important role that members of the insulin-like growth factor (IGF) family play in tumorigenesis has been known for decades. But it has only been in the last five years, that humanized and fully human antibodies targeting insulin-like growth factor receptor 1 (IGF-1R) have been developed. The use of these agents in clinical trials has been accompanied by several dramatic responses in patients with recurrent and refractory sarcomas. In this review, we will focus on preclinical highlights in the past, current clinic trials and discuss some exciting research opportunities to foster advances in the future.
Insights
Targeting insulin-like growth factor receptor 1 (IGF-1R) with new antibodies shows promise for treating recurrent and refractory sarcomas. These advancements offer hope where traditional therapies have failed, improving patient survival rates.
Area of Science:
- Oncology
- Molecular Biology
- Pharmacology
Background:
- Multimodality therapy has improved sarcoma cure rates, but metastatic or recurrent disease survival remains poor.
- The insulin-like growth factor (IGF) family is implicated in tumor development.
- Recent development of humanized and fully human antibodies targeting IGF-1R offers new therapeutic avenues.
Purpose of the Study:
- To review preclinical findings, current clinical trials, and future research opportunities for IGF-1R inhibitors in sarcoma treatment.
- To highlight the potential of targeting the IGF-1R pathway in overcoming therapeutic resistance in sarcomas.
Main Methods:
- Review of preclinical studies on IGF-1R targeting agents.
- Analysis of data from ongoing and completed clinical trials involving IGF-1R antibodies in sarcoma patients.
- Discussion of emerging research directions and potential therapeutic strategies.
Main Results:
- Preclinical data support the role of IGF-1R in sarcoma tumorigenesis and progression.
- Clinical trials have demonstrated dramatic responses in some patients with recurrent and refractory sarcomas treated with IGF-1R antibodies.
- Significant research opportunities exist for optimizing IGF-1R-targeted therapies.
Conclusions:
- Antibodies targeting IGF-1R represent a promising therapeutic strategy for advanced sarcomas.
- Further research is crucial to fully elucidate the efficacy and optimal application of IGF-1R inhibitors in sarcoma treatment.
- Targeting the IGF-1R pathway holds potential for improving outcomes in patients with limited therapeutic options.
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