期刊
CLINICAL AND EXPERIMENTAL PHARMACOLOGY AND PHYSIOLOGY
卷 37, 期 1, 页码 83-87出版社
WILEY
DOI: 10.1111/j.1440-1681.2009.05236.x
关键词
breast cancer; hTERT; oestrogen; telomerase
资金
- National Health and Medical Research Council of Australia
- Cancer Council of Victoria, Australia
P>1. The enzyme telomerase maintains telomeres (ends of chromosomes) by synthesizing telomeric DNA at each end of the chromosomes. Its association with telomeres has implicated telomerase in cell immortalization. 2. Numerous studies have shown significant levels of telomerase activity in 85% of various types of cancer. Transcriptional control of the catalytic subunit, telomerase reverse transcriptase (TERT), dominates regulation of telomerase. Although several major factors have been identified in regulating TERT, they cannot explain all the transcriptional activity of the hTERT gene. 3. The Ets transcription factor (TF) family is becoming a regular feature in tumourigenesis, particularly in breast cancer. However, the roles and mechanisms of different Ets TFs are largely unknown. 4. The present minireview discusses the research that identified Ets as a regulator of telomerase required for breast cancer cell survival and proliferation, highlighting the discoveries central to understanding the molecular acts used by Ets TFs to mediate TERT gene transcription.
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