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The alpha v integrin antagonists as novel anticancer agents: an update
Janet S Kerr1, Andrew M Slee, Shaker A Mousa
1Enanta Pharmaceuticals Inc., 500 Arsenal Street, Watertown, MA 02472, USA.
Abstract:
Integrins are involved in many cellular processes, including some pathological ones associated with various cancers, both solid tumours and metastases. Since integrins are involved in such critical processes as gene expression, which lead to cellular proliferation, migration, survival and angiogenesis, they represent potential targets for therapeutic intervention. The alpha(v)beta(3) integrin is one of the most widely studied integrins because it is one of the most promiscuous. Published studies provide compelling evidence that small molecule antagonists have the potential to treat both solid tumours and metastases, serve as diagnostic imaging agents and be used for site-directed delivery of drugs to solid tumours. The alpha(v)beta(3) integrin antagonists also inhibit blood vessel formation associated with tumour growth. Therapeutic candidates have included antibodies, cyclic peptides, peptidomimetics and small molecules. A number of potent small-molecule antagonists of the alpha(v)beta(3) integrin have now been identified and are progressing in the clinic. This review focuses on the role of alpha(v)beta(3) in cancer. The rationale for the development of the therapeutic and diagnostic candidates based on the key role of alpha(v)beta(3) is discussed.
Insights
Integrins, like alpha(v)beta(3), are key in cancer growth and spread. Targeting alpha(v)beta(3) with small molecules shows promise for cancer therapies and diagnostics.
Area of Science:
- Oncology
- Molecular Biology
- Biochemistry
Background:
- Integrins play crucial roles in cellular functions, including cancer progression.
- The alpha(v)beta(3) integrin is implicated in solid tumors and metastases.
- Its involvement in gene expression, proliferation, migration, survival, and angiogenesis makes it a therapeutic target.
Purpose of the Study:
- To review the role of alpha(v)beta(3) integrin in cancer.
- To discuss the rationale for developing alpha(v)beta(3) antagonists for cancer therapy and diagnostics.
Main Methods:
- Literature review of published studies on alpha(v)beta(3) integrin in cancer.
- Analysis of therapeutic candidates including antibodies, cyclic peptides, peptidomimetics, and small molecules.
Main Results:
- Alpha(v)beta(3) integrin antagonists show potential in treating solid tumors and metastases.
- These antagonists can inhibit tumor-associated angiogenesis.
- Small-molecule antagonists are progressing in clinical trials for cancer treatment.
Conclusions:
- Alpha(v)beta(3) integrin is a significant target for anti-cancer drug development.
- Therapeutic and diagnostic strategies targeting alpha(v)beta(3) are advancing.
- Small molecules offer a promising approach for cancer intervention.
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