Current Cancer Drug Targets

Ruiwen Zhang 
Texas Tech University Health Sciences Center
1300 Coulter Drive
Amarillo, TX 79106
USA

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Dual Inhibition of PI3-Kinase and mTOR in Renal Cell Carcinoma

Author(s): Daniel C. Cho, James W. Mier.

Abstract:

Although PI3-kinase mutations are uncommon in renal cell carcinoma (RCC), the PI3-kinase/Akt signaling pathway is active in most RCC. The activation of PI3-kinase would be expected to drive protein and lipid synthesis through its effects on mTORC1 and SREBP1, respectively. PI3-kinase also activates numerous transcription factors (e.g. the FOXO family, c-myc, NF-κB) that regulate cell proliferation and viability. The consequences of blocking PI3-kinase in RCC are just now beginning to be elucidated and are expected to include effects on tumor cell proliferation, metabolism, and angiogenesis. Several PI3-kinase inhibitors currently undergoing clinical testing are active site inhibitors of mTOR as well and it is likely that these agents will prove particularly useful in the treatment of RCC.

Keywords: Everolimus, mTOR, renal cell carcinoma, PI3-kinase, temsirolimus, translation.

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Article Details

VOLUME: 13
ISSUE: 2
Year: 2013
Page: [126 - 142]
Pages: 17
DOI: 10.2174/1568009611313020003
Price: $58