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Coordinate expression of the human pregnancy-specific glycoprotein gene family during induced and replicative senescence
被引:12
|作者:
Endoh, Morio
[1
]
Kobayashi, Yusuke
[1
]
Yamakami, Yoshimi
[1
]
Yonekura, Ryuzo
[1
]
Fujii, Michihiko
[1
]
Ayusawa, Dai
[1
]
机构:
[1] Yokohama City Univ, Int Grad Sch Arts & Sci, Kanazawa Ku, Kanagawa 2360027, Japan
关键词:
Pregnancy-specific glycoproteins;
Cellular senescence;
5-Bromodeoxyuridine;
Stress response;
Gene expression;
HELA-CELLS;
MAMMALIAN-CELLS;
IN-VIVO;
5-BROMODEOXYURIDINE;
INDUCTION;
SP1;
IL-6;
DNA;
BETA-1-GLYCOPROTEIN;
TROPHOBLAST;
D O I:
10.1007/s10522-008-9173-3
中图分类号:
R592 [老年病学];
C [社会科学总论];
学科分类号:
03 ;
0303 ;
100203 ;
摘要:
Pregnancy-specific glycoproteins (PSGs) comprise a family of highly similar polypeptides encoded by 11 transcriptionally active genes that compactly cluster on band 19q13.2. All members of the PSG family were found to be markedly up-regulated by addition of 5-bromodeoxyuridine in HeLa cells. Similarly, all of the members were markedly up-regulated during replicative senescence in normal human fibroblasts. Promoter analysis of the PSG1, 4, and 11 genes in HeLa cells did not reveal a cis-regulatory element responsive to 5-bromodeoxyuridine in their 5'-flanking sequences. These results suggest that the PSG genes are regulated at a level of higher order chromatin structure besides by a signal of pregnancy.
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页码:213 / 221
页数:9
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