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World J Gastroenterol. 2014 May 28;20(20):6102-12. doi: 10.3748/wjg.v20.i20.6102.

Targeted therapy in advanced metastatic colorectal cancer: current concepts and perspectives.

Author information

1
Florian Hohla, Richard Greil, III Medical Department with Hematology, Medical Oncology, Hemostasis, Rheumatology and Infectious Diseases, Oncologic Center, Center for Clinical Cancer and Immunology Trials, Laboratory of Immunological and Molecular Cancer Research, Paracelsus Medical University of Salzburg, A-5020 Salzburg, Austria.

Abstract

The introduction of new cytotoxic substances as well as agents that target vascular endothelial growth factor (VEGF) and epidermal growth factor receptor (EGFR) signaling has improved clinical outcome of patients with metastatic colorectal cancer (mCRC). In this review we summarize the most relevant clinical data on VEGF and EGFR targeting regimens in mCRC. The effects of available treatment strategies for mCRC are often temporary, with resistance and disease progression developing in most patients. Thus, new treatment strategies are urgently needed. Some GI peptides including gastrin and gastrin releasing peptide, certain growth factors such as insulin-like growth factor-I and II and neuropeptides such as growth hormone releasing hormone (GHRH) are implicated in the growth of CRC. Experimental investigations in CRC with antagonistic analogs of bombesin/gastrin-releasing peptide, GHRH, and with cytotoxic peptides that can be targeted to peptide receptors on tumors, are summarized in the second part of the review.

KEYWORDS:

Colorectal cancer; Cytotoxic analogs; Epidermal growth factor receptor; Gastrin-releasing peptide; Growth hormone releasing hormone; Luteinizing hormone-releasing hormone; Peptide receptors; Targeted treatment; Vascular endothelial growth factor

PMID:
24876732
PMCID:
PMC4033449
DOI:
10.3748/wjg.v20.i20.6102
[Indexed for MEDLINE]
Free PMC Article

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