Abstract
Metallothioneins (MTs) are low molecular, cysteine-rich proteins that have naturally-occurring Zn2+ in both clusters. They may serve as a reservoir of metals for synthesis of apoenzymes and zinc-finger transcription regulators. MTs are also involved with several important proteins e.g. p53, NF-κB, PKCl, and GTPase Rab3A. New biological roles for these proteins have been identified including those needed in the carcinogenic process. However, their use as a predictive marker remains controversial. Several reports have disclosed MTs expression as a prognostic factor for tumor progression and drug resistance in a variety of malignancies particularly breast, prostatic, ovarial, head and neck, non-small cell lung cancer, melanoma, and soft tissue sarcoma. The role of MTs as a tumor disease marker or as a cause of resistance in cancer treatment is reviewed and discussed. Moreover, we describe some analytical methods that were developed to detect MTs.
Keywords: Metallothioneins, cancer marker, cancer cell chemoresistance, detection
Current Protein & Peptide Science
Title: Metallothioneins and Cancer
Volume: 10 Issue: 4
Author(s): Tomas Eckschlager, Vojtech Adam, Jan Hrabeta, Katarina Figova and Rene Kizek
Affiliation:
Keywords: Metallothioneins, cancer marker, cancer cell chemoresistance, detection
Abstract: Metallothioneins (MTs) are low molecular, cysteine-rich proteins that have naturally-occurring Zn2+ in both clusters. They may serve as a reservoir of metals for synthesis of apoenzymes and zinc-finger transcription regulators. MTs are also involved with several important proteins e.g. p53, NF-κB, PKCl, and GTPase Rab3A. New biological roles for these proteins have been identified including those needed in the carcinogenic process. However, their use as a predictive marker remains controversial. Several reports have disclosed MTs expression as a prognostic factor for tumor progression and drug resistance in a variety of malignancies particularly breast, prostatic, ovarial, head and neck, non-small cell lung cancer, melanoma, and soft tissue sarcoma. The role of MTs as a tumor disease marker or as a cause of resistance in cancer treatment is reviewed and discussed. Moreover, we describe some analytical methods that were developed to detect MTs.
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Cite this article as:
Eckschlager Tomas, Adam Vojtech, Hrabeta Jan, Figova Katarina and Kizek Rene, Metallothioneins and Cancer, Current Protein & Peptide Science 2009; 10 (4) . https://dx.doi.org/10.2174/138920309788922243
DOI https://dx.doi.org/10.2174/138920309788922243 |
Print ISSN 1389-2037 |
Publisher Name Bentham Science Publisher |
Online ISSN 1875-5550 |
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