期刊
FRONTIERS IN NEUROENDOCRINOLOGY
卷 22, 期 4, 页码 248-291出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1006/frne.2001.0217
关键词
tumor therapy; agonists and antagonists of LH-RH; bombesin antagonists; GH-RH antagonists; targeted cytotoxic analogs; somatostatin analogs
资金
- NCI NIH HHS [CA-40077, CA-40003, CA-40004] Funding Source: Medline
The use of peptide analogs for the therapy of various cancers is reviewed. Inhibition of the pituitary-gonadal axis forms the basis for oncological applications of luteinizing hormone-releasing hormone (LH-RH) agonists and antagonists, but direct effects on tumors may also play a role. Analogs of somatostatin are likewise used for treatment of various tumors. Radiolabeled somatostatin analogs have been successfully applied for the localization of tumors expressing somatostatin receptors. Studies on the role of tumoral LH-RH, growth hormone-releasing hormone (GH-RH), and bombesin/GRP and their receptors in the proliferation of various tumors are summarized, but the complete elucidation of all the mechanisms involved will require much additional work. Human tumors producing hypothalamic hormones are also discussed. Treatment of many cancers remains a major challenge, but new therapeutic modalities are being developed based on antagonists of GH-RH and bombesin, which inhibit growth factors or their receptors. Other approaches consist of the use of cytotoxic analogs of LH-RH, bombesin, and somatostatin, which can be targeted to receptors for these peptides in various cancers and their metastases. These new classes of peptide analogs should lead to a more effective treatment for various cancers. (C) 2001 Academic Press.
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