Telomeres and immune competency.

Telomeres and immune competency.
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DOI:
10.1016/j.coi.2012.05.001
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发表时间:
2012-08
影响因子:
7
通讯作者:
Weng NP
Weng NP
中科院分区:
医学2区
文献类型:
--
作者:
Weng NP

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Telomeres are essential for the integrity of chromosomes and for cellular replication. Attrition of telomeres occurs during DNA replication due to the inability of conventional DNA polymerase to replicate chromosomal termini and the insufficient compensation for telomere loss by telomerase, an enzyme that synthesizes telomeric DNA. A number of genetic defects have been described in humans and in animal models which cause accelerated telomere attrition, in turn leading to severe phenotypes of hematopoietic and other proliferating cells. Telomere length, most frequently measured as an average value in heterogeneous peripheral blood leukocyte populations in humans, has been associated with a wide range of health conditions and diseases of immune and non-immune cells. Here, we review recent studies of telomere length dynamics with particular relevance to immune function.
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