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Peptide aptamers: recent developments for cancer therapy
Corina Borghouts1, Christian Kunz, Bernd Groner
1Georg-Speyer-Haus Institute for Biomedical Research, Paul-Ehrlich-Strasse 42-44, D-60596 Frankfurt am Main, Germany.
Abstract:
During the past two decades, our understanding of oncogenesis has advanced considerably and many new signalling pathways have been identified. Differences in signalling events that distinguish normal cells from tumour cells provide new targets for the development of anticancer agents. Peptide aptamers are small peptide sequences that have been selected to recognise a predetermined target protein domain and are potentially able to interfere with its function. They represent useful molecules for manipulating protein function in vivo. The isolation and use of specific peptide aptamers as inhibitors of individual signalling components, essential in cancer development and progression, provides a new challenge for drug development. Although peptides make up only a small fraction of current therapeutics, their potential is being enhanced by new developments affecting their modification, stability, delivery and their successful application in preclinical settings. This review summarises the methods that can be used for the isolation and delivery of peptide aptamers, as well as the important achievements that have been made using such peptide aptamers in different systems. The applicability of peptide aptamers as novel cancer therapeutics will be discussed.
Insights
Peptide aptamers offer a novel approach to cancer therapy by inhibiting key signaling pathways. This review explores their isolation, delivery, and therapeutic potential in preclinical cancer models.
Area of Science:
- Oncology
- Molecular Biology
- Drug Development
Background:
- Significant advancements in understanding oncogenesis have identified novel signaling pathways crucial for tumor cell survival.
- Aberrant signaling in cancer cells presents unique therapeutic targets for novel anticancer agents.
Purpose of the Study:
- To review methods for isolating and delivering peptide aptamers.
- To discuss the achievements and potential of peptide aptamers as cancer therapeutics.
Main Methods:
- Selection and isolation of specific peptide aptamers targeting protein domains.
- Strategies for modifying, stabilizing, and delivering peptide aptamers in vivo.
- Evaluation of peptide aptamer efficacy in preclinical cancer models.
Main Results:
- Peptide aptamers can be designed to specifically recognize and interfere with target protein functions.
- Advances in peptide modification and delivery enhance their stability and therapeutic application.
- Successful preclinical applications demonstrate the potential of peptide aptamers in various cancer systems.
Conclusions:
- Peptide aptamers represent a promising class of molecules for cancer drug development.
- Further research into their modification, delivery, and clinical application is warranted.
- Peptide aptamers hold significant potential as novel therapeutics for cancer treatment.
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