Journal
ANALYTICAL BIOCHEMISTRY
Volume 315, Issue 1, Pages 1-21Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/S0003-2697(02)00663-2
Keywords
TRAP; telomerase; hTERT; detection techniques
Funding
- NIA NIH HHS [1 R03 AG20375 01] Funding Source: Medline
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The discovery of the enzyme telomerase and its subunits has led to major advances in understanding the mechanisms of cellular proliferation, immortalization, aging, and neoplastic transformation. The expression of telomerase in more than 85% of tumors provides an excellent tool for the diagnosis, prognosis, and treatment of cancer. However, the techniques employed in its detection appear to play a significant role in the interpretation of the results. The telomeric repeat amplification protocol (TRAP assay) has been the standard assay in the detection of telomerase activity and many variations of this technique have been reported. Recent advances in the development of the TRAP assay and the incorporation of techniques that provide a quantitative and qualitative estimate of telomerase activity are assessed in this review. In addition to histological and cytological examination of tissues, distribution patterns of the catalytic subunit of telomerase, hTERT, are frequently used in the prognosis of tumors. The methods involved in the detection of hTERT as a biomarker of cellular transformation are also analyzed. (C) 2003 Elsevier Science (USA). All rights reserved.
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