期刊
TRENDS IN MOLECULAR MEDICINE
卷 13, 期 1, 页码 4-11出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.molmed.2006.11.001
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资金
- NCI NIH HHS [R01 CA62099] Funding Source: Medline
- NIA NIH HHS [R01 AG17921] Funding Source: Medline
Constitutive activation of STAT3 (signal transducer and activator of transcription) has been reported in several primary cancers and tumor cell lines where it induces cell transformation through a combined inhibition of apoptosis and cell-cycle activation. Several studies have suggested that STAT3 prevents cell-cycle arrest and cell death through upregulation of survival proteins and downregulation of tumor suppressors. As a consequence of anti-apoptotic and proliferative lesions, we propose that this oncogenic pathway is also involved in intrinsic drug resistance and that STAT3-expressing tumors are resistant to chemotherapeutic agents. If this hypothesis is correct, the detection of the activated form of this protein should help to define subsets of tumors that fail to respond to chemotherapy. Furthermore, interfering with the STAT3 oncogenic pathway might restore the sensitivity to anticancer drugs.
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