期刊
TRENDS IN MOLECULAR MEDICINE
卷 16, 期 7, 页码 329-335出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.molmed.2010.05.001
关键词
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资金
- Alberta Cancer Foundation
- Cancer Research UK
- Tuberous Sclerosis Association (UK)
The TSC1/TSC2 tumor-suppressor complex regulates cell growth via controlling the mTOR (mammalian target of rapamycin) signaling pathway, which contributes to several disease processes, including cancer and diabetes. Abnormal activation of mTOR uncouples anabolic cell growth processes such as protein and lipid synthesis from external growth factor or nutrient cues. However, abnormal activation of mTOR upon loss of TSC1/TSC2 complex function is now known to lead to compensatory mechanisms that restrict the development of malignant tumors. The rare occurrence of complete loss of TSC1/TSC2 function in human tumors suggests that retaining growth suppressor activity might be beneficial during tumour evolution, perhaps by promoting survival when cells grow in a nutrient-limited environment.
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