This study investigated the role of miR-155 in regulating osteosarcoma cell autophagy, chemosensitivity to Adriamycin (ADM), and PTEN-PI3K/AKT/mTOR signaling pathway.
The relative protein expression level of p-PI3K, p-Akt, P53 and Bcl-2 in osteosarcoma cells after transfection with lncRNA- NC or lncRNA-LINC00628 were detected by Western blot.
Fangchinoline suppresses the proliferation, invasion and tumorigenesis of human osteosarcoma cells through the inhibition of PI3K and downstream signaling pathways.
SIX1 promoted the progression of osteosarcoma via regulating PTEN/PI3K/AKT signaling cascade, which might provide a new potent therapeutic target for osteosarcoma.
Our data first reported that DBH-AS1 may act as an oncogenic lncRNA by modulating the PI3K/Akt pathway in osteosarcoma, which may serve as a candidate prognostic biomarker and target for new therapies in osteosarcoma.
Therefore, the current study reveals that aclidinium bromide might inhibit osteosarcoma cell growth by regulating the PI3K/AKT signaling pathway, which suggests aclidinium bromide is a potential chemotherapeutic agent for osteosarcoma.
We found that CD20, MCM, and CCNB1 (down-regulated) in cell cycle and ECM, ITGA, RTKin (up-regulated) in focal adhesion had important roles in the progression of osteosarcoma.
Here, we have analyzed the therapeutic potential of the pan-PI3K inhibitor NVP-BKM120, which has recently entered clinical Phase II for treatment of PI3K-dependent cancers on three OS cell lines.
Our results indicate that TGF-α/EGFR interaction elicits PI3K and Akt activation, which in turn activates NF-κB, resulting in the expression of ICAM-1 and contributing the migration of human osteosarcoma cells.
K-Ras<sup>G12V/Y40C</sup>-PI3K/AKT pathway regulates H1.4<sup>S35ph</sup> through PKA to promote the occurrence and development of osteosarcoma cancer.
Moreover, <i>UCA1</i> increases CREB1 expression by functioning as a ceRNA against miR-582, thus promoting the EMT process via CREB1-mediated PI3K/AKT/mTOR pathway and finally leading to osteosarcoma metastasis.
Equally importantly, PTEN is the most significant negative regulator of PI3K/Akt signaling cascade, the constitutively activated pathway in osteosarcoma.
In summary, our data demonstrated that downregulation of HOXB7 inhibited proliferation, invasion, and tumorigenesis, partly through suppressing the PI3K/Akt signaling pathway in osteosarcoma cells.
Biological pathways implicated in osteosarcoma biology through genetic and other preclinical studies include PI3K/mTOR, WNT/βcatenin, TGFβ, RANKL/NF-κB, and IGF.
We proposed that VRK1 and H2A<sup>T120ph</sup> could be the potential targets for osteosarcoma diagnosis and treatment.HighlightsH2A<sup>T120ph</sup> is specifically promoted by Ras-PI3K pathway activation.H2A<sup>T120ph</sup> joins in the oncogenic effects of Ras-PI3K pathway on osteosarcoma.H2A<sup>T120ph</sup> regulates the transcription of Ras-PI3K-targeted genes.VRK1 takes part in the regulatory function of Ras-PI3K pathway on H2A<sup>T120ph</sup>.