Ciba Foundation Symposium 211 - Telomeres and Telomerase

Ciba Foundation Symposium 211 - Telomeres and Telomerase

Editor(s): Derek J. Chadwick, Gail Cardew

Published Online: 28 SEP 2007

Print ISBN: 9780471972785

Online ISBN: 9780470515433

DOI: 10.1002/9780470515433

About this Book

Telomeres and Telomerase
Chairman: Sydney Brenner, 1997

Telomeres are the protective genetic elements located at the ends of chromosomes and are essential for correct chromosomal structure and function. They are not fully replicated by the conventional DNA polymerase system because DNA synthesis occurs only in the 5' to 3' direction and requires an RNA primer for initiation. Consequently, cells require a special enzyme to maintain the telomeric ends of chromosomes during each round of replication. This enzyme, telomerase, is a ribonucleoprotein that extends chromosome ends by adding short stretches of nucleotide repeats using a portion of its integral RNA component as the template. Recently, much excitement has been generated by the suggestion that telomerase, or rather the absence of telomerase and the resultant loss of terminal DNA, is a cause of human ageing. The evidence for this is twofold: the telomeres of certain cells in culture shorten during their lifespan; and immortalization of cells is associated, at least in some cases, with the maintenance of telomeres and telomerase activity. The latter observation prompted the analysis of clinical samples from patients with cancer and the demonstration that, in contrast to normal somatic cells, malignant cells possess telomerase activity. This is a unique book. Not only does it contain the latest experimental results from an international group of experts, but it also includes critical examinations of the current evidence, and discussions that attempt to identify the central and underlying concepts of this rapidly expanding field.

Table of contents

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    2. The Telomere and Telomerase: How do they Interact? (pages 2–19)

      E. Blackburn, A. Bhattacharyya, D. Gilley, K. Kirk, A. Krauskopf, M. McEachern, J. Prescott and T. Ware

    3. The Role of the EST Genes in Yeast Telomere Replication (pages 41–52)

      Timothy R. Hughes, Danna K. Morris, Andrew Salinger, Nathan Walcott, Constance I. Nugent and Victoria Lundblad

    4. Mouse Models for the Study of Telomerase (pages 160–176)

      María A. Blasco, Han-Woong Lee, Michael Rizen, Douglas Hanahan, Ron DePinho and Carol W. Greider

    5. Repair and Processing Events at DNA Ends (pages 198–208)

      Tomas Lindahl, Deborah E. Barnes, Arne Klungland, Victoria J. Mackenney and Primo Schär

    6. Telomeres in the Haemopoietic System (pages 209–226)

      Peter M. Lansdorp, Steven Poon, Elizabeth Chavez, Visia Dragowska, Mark Zijlmans, Tracy Bryan, Roger Reddel, Michael Egholm, Silvia Bacchetti and Uwe Martens

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