期刊论文详细信息
FEBS Letters
Telomerase activity in ‘immortal’ fish
Kühne, Karen1  Parwaresch, Reza1  Klapper, Wolfram1  Heidorn, Klaus1 
[1] Institute for Hematopathology, Center for Pathology and Applied Cancer Research, Christian-Albrechts-Universität Kiel, Niemannsweg 11, D-24105 Kiel, Germany
关键词: Indeterminate growth;    Cell proliferation;    Senescence;    Telomerase assay;    Rainbow trout;   
DOI  :  10.1016/S0014-5793(98)01020-5
学科分类:生物化学/生物物理
来源: John Wiley & Sons Ltd.
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【 摘 要 】

Eukaryotic chromosome termini consist of telomeres, short sequence repeats. According to the telomere hypothesis, DNA replication leads to telomere shortening, resulting in a cellular mitotic clock. Telomerase resets it by telomere synthesis. In mammals with a limited growth phase, telomerase activity in somatic tissues is restricted to stem cell derivatives with high proliferation potential. But other animals, like some fish, grow throughout their life with little senescence. All somatic cells require a high proliferation capacity and telomerase should be active in all cells, irrespective of fish age. Indeed, we detected high telomerase activities in all analyzed organs of rainbow trout (Oncorhynchus mykiss).

【 授权许可】

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