Age-related differences in expression of signal differentiation factors for human thymic epithelial cells

被引：1

作者：

Polyakova, V. O. ^{[1
]}

Kvetnoy, I. M. ^{[1
]}

Konovalov, S. S. ^{[1
]}

Zezulin, P. N. ^{[1
]}

Knyazkin, I. V. ^{[1
]}

机构：

[1] Russian Acad Med Sci, St Petersburg Inst Bioregulat & Gerontol, Northwestern Div, Moscow 109801, Russia

来源：

BULLETIN OF EXPERIMENTAL BIOLOGY AND MEDICINE | 2007年 / 144卷 / 02期

关键词：

thymus; aging; transcription factors; confocal microscopy;

D O I：

10.1007/s10517-007-0298-1

中图分类号：

R-3 [医学研究方法]; R3 [基础医学];

学科分类号：

1001 ;

摘要：

Expression of transcription proteins PAX1, Hoxa3, and TLP regulating differentiation of thymic epithelial cells is detected in human thymus starting from gestation week 22 until the age of 95 years. Expression of transcription factors significantly decreased during aging. Apart from the decrease in the expression of signal differentiation factors in cultured thymic epithelial cells, proliferative activity of T lymphocytes cocultured with thymic epithelial cells also decreased in aging cultures, which demonstrated the important regulatory effect of transcription proteins on maturation and maintenance of T lymphocytes. Taking into account the important role of transcription proteins in the regulation of proliferation and function of T lymphocytes, whose number sharply decreases during aging, the maintenance of the level of expression of transcription factors during aging is a promising trend in modern biogerontology.

引用

页码：235 / 237

页数：3

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