Telomerase beyond telomeres

被引:143
作者
Blasco, MA [1 ]
机构
[1] Natl Biotechnol Ctr, Dept Immunol & Oncol, E-28049 Madrid, Spain
关键词
D O I
10.1038/nrc862
中图分类号
R73 [肿瘤学];
学科分类号
100214 ;
摘要
The role of telomerase in actively proliferating cells is assumed to be restricted to maintaining of telomeres above a minimum-length threshold, thereby preventing telomere exhaustion and chromosomal instability. However, forced telomerase expression in cells and mice with normal-length telomeres has shown that telomerase promotes growth and survival in a manner that is uncoupled from net telomere lengthening. These findings imply that telomerase might have a fundamental role in tumour growth and survival, even at stages when telomeres are sufficiently long.
引用
收藏
页码:627 / 632
页数:6
相关论文
共 46 条
[1]   Targeting assay to study the cis functions of human telomeric proteins:: Evidence for inhibition of telomerase by TRF1 and for activation of telomere degradation by TRF2 [J].
Ancelin, K ;
Brunori, M ;
Bauwens, S ;
Koering, CE ;
Brun, C ;
Ricoul, M ;
Pommier, JP ;
Sabatier, L ;
Gilson, E .
MOLECULAR AND CELLULAR BIOLOGY, 2002, 22 (10) :3474-3487
[2]   Constitutive telomerase expression promotes mammary carcinomas in aging mice [J].
Artandi, SE ;
Alson, S ;
Tietze, MK ;
Sharpless, NE ;
Ye, S ;
Greenberg, RA ;
Castrillon, DH ;
Horner, JW ;
Weiler, SR ;
Carrasco, RD ;
DePinho, RA .
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2002, 99 (12) :8191-8196
[3]   Strand-specific postreplicative processing of mammalian telomeres [J].
Bailey, SM ;
Cornforth, MN ;
Kurimasa, A ;
Chen, DJ ;
Goodwin, EH .
SCIENCE, 2001, 293 (5539) :2462-2465
[4]   Switching and signaling at the telomere [J].
Blackburn, EH .
CELL, 2001, 106 (06) :661-673
[5]   Differential regulation of telomerase activity and telomerase RNA during multi-stage tumorigenesis [J].
Blasco, MA ;
Rizen, M ;
Greider, CW ;
Hanahan, D .
NATURE GENETICS, 1996, 12 (02) :200-204
[6]   Telomere shortening and tumor formation by mouse cells lacking telomerase RNA [J].
Blasco, MA ;
Lee, HW ;
Hande, MP ;
Samper, E ;
Lansdorp, PM ;
DePinho, RA ;
Greider, CW .
CELL, 1997, 91 (01) :25-34
[7]   Extension of life-span by introduction of telomerase into normal human cells [J].
Bodnar, AG ;
Ouellette, M ;
Frolkis, M ;
Holt, SE ;
Chiu, CP ;
Morin, GB ;
Harley, CB ;
Shay, JW ;
Lichtsteiner, S ;
Wright, WE .
SCIENCE, 1998, 279 (5349) :349-352
[8]  
Broccoli D, 1996, MOL CELL BIOL, V16, P3765
[9]   New ways not to make ends meet: telomerase, DNA damage proteins and heterochromatin [J].
Chan, SWL ;
Blackburn, EH .
ONCOGENE, 2002, 21 (04) :553-563
[10]   p53 deficiency rescues the adverse effects of telomere loss and cooperates with telomere dysfunction to accelerate carcinogenesis [J].
Chin, L ;
Artandi, SE ;
Shen, Q ;
Tam, A ;
Lee, SL ;
Gottlieb, GJ ;
Greider, CW ;
DePinho, RA .
CELL, 1999, 97 (04) :527-538