Gene interactions and pathways from curated databases and text-mining
Eur J Cancer 2006, PMID: 16759849

PI3-K/Akt-mediated anoikis resistance of human osteosarcoma cells requires Src activation.

Díaz-Montero, C Marcela; Wygant, James N; McIntyre, Bradley W

Considerable advances in understanding the mechanisms associated with anoikis resistance of normal and malignant epithelial cells have been made. However, little is still known about the pathways involved in anoikis resistance of non-epithelial cells such as fibroblasts and sarcomas. Our results show that Src activity contributes to anoikis resistance of human osteosarcoma SAOS-2 cells. Src was found to be upregulated in anoikis resistant SAOS cells, and pharmacological inhibition of its activity resulted in the restoration of anoikis sensitivity. A normal pattern of dephosphorylation of FAK was observed upon cell detachment of both anoikis sensitive and resistant SAOS-2 cells, suggesting that FAK activity during anoikis resistance is not essential. The activity of Akt was found to be upregulated in anoikis resistant SAOSar cells and the pharmacological inhibition of PI3-K activity restored sensitivity to anoikis resistant cells, reconfirming the critical role of PI3-K/Akt pathway in cell survival. Furthermore, pharmacological inhibition of Src resulted in a decrease of Akt phosphorylation at Ser473. Altogether, these studies indicated a survival pathway mediated by the Src-dependent activation of the PI3-K/Akt pathway in a manner independent of FAK activity.

Diseases/Pathways annotated by Medline MESH: Osteosarcoma
Document information provided by NCBI PubMed

Text Mining Data

Src → PI3-K/Akt: " PI3-K/Akt mediated anoikis resistance of human osteosarcoma cells requires Src activation "

Src → PI3-K/Akt: " PI3-K/Akt mediated anoikis resistance of human osteosarcoma cells requires Src activation "

Akt ⊣ PI3-K: " The activity of Akt was found to be upregulated in anoikis resistant SAOSar cells and the pharmacological inhibition of PI3-K activity restored sensitivity to anoikis resistant cells, reconfirming the critical role of PI3-K/Akt pathway in cell survival "

Akt ⊣ Src: " Furthermore, pharmacological inhibition of Src resulted in a decrease of Akt phosphorylation at Ser473 "

Manually curated Databases

No curated data.