Correlation of dyskerin expression with active proliferation independent of telomerase.
Correlation of dyskerin expression with active proliferation independent of telomerase.
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DOI:
10.1002/hed.21579
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发表时间:
2011-07
影响因子:
2.9
通讯作者:
Patel, Reena
中科院分区:
文献类型:
--
作者:
Alawi, Faizan;Lin, Ping;Ziober, Barry;Patel, Reena
Dyskerin, which is an important component of the telomerase complex and is needed for normal telomerase activity, is frequently overexpressed in neoplasia. Dyskerin also plays an essential role in ribosome biogenesis. Since protein synthesis increases during tumorigenesis, this led us to hypothesize that dyskerin expression would be upregulated independently of the cell immortalization mechanism. Dyskerin and telomerase reverse transcriptase (TERT) expression were examined in oral squamous cell carcinomas (OSCC) and patient-matched controls, and in a panel of telomerase-positive and telomerase-negative cells. Antisense inhibition of TERT was used to test the effects of downregulation of telomerase on dyskerin expression. Dyskerin was frequently overexpressed in OSCC and in immortalized and transformed keratinocytes relative to primary cells, independently of TERT and telomerase activity. Instead, dyskerin expression strongly correlated with cell proliferation rates. The role of dyskerin in tumorigenesis does not correlate with its function within the telomerase complex.
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影响因子:
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作者:
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通讯作者:
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DOI:
10.1002/hed.10169
发表时间:
2002-12-01
影响因子:
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作者:
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通讯作者:
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DOI:
10.1046/j.1432-1033.2002.03025.x
发表时间:
2002-07-01
期刊:
EUROPEAN JOURNAL OF BIOCHEMISTRY
影响因子:
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作者:
Chang, JTC;Chen, YL;Cheng, AJ
通讯作者:
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