Western blot analysis was performed to detect the expression levels of phosphatidylinositol 3‑kinase (PI3K), phospho (p)‑PI3K, RAC‑alpha serine/threonine‑protein kinase (AKT), p‑AKT and NF‑κB inhibitor α (IκBα) in osteosarcoma cells transfected with H19 siRNA.
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>.
We found that hBMSC-MVs promoted U2OS cell proliferation and migration under hypoxia in vitro, and that was partially associated with the PI3K/AKT and HIF-1α pathways.
We determined that AREG increases the expression of intercellular adhesion molecule-1 (ICAM-1) through PI3K/Akt signaling pathway via its interaction with the epidermal growth factor receptor, thus resulting in the enhanced cell migration of osteosarcoma.
We also found that the activations of phosphoinositide 3-kinase (PI3K) and protein kinase B (AKT) were considerably reduced after osteosarcoma cells were treated with Lv-shVEGF.
This study investigated the role of miR-155 in regulating osteosarcoma cell autophagy, chemosensitivity to Adriamycin (ADM), and PTEN-PI3K/AKT/mTOR signaling pathway.
These findings suggest that galangin suppresses osteosarcoma cells by inhibiting their proliferation and invasion and accelerating their apoptosis, and the mechanism may be associated with the inhibition of PI3K and its downstream signaling pathway.
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.
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.
The overexpression of IRX2 promoted the activation of PI3K/Akt and increased the proliferation and invasiveness of the OS cell lines as shown by CCK8 and invasion assays.
Taken together, our results suggest that miR-497 modulates the sensitivity to cisplatin at least in part through PI3K/Akt pathway in osteosarcoma cells.
SIX1 promoted the progression of osteosarcoma via regulating PTEN/PI3K/AKT signaling cascade, which might provide a new potent therapeutic target for osteosarcoma.
PP2A was a direct target of miR-21, which participated in the effects of ASBEL and miR-21 on the activation of phosphatidylinositol 3-kinase/protein kinase 3/glycogen synthase kinase-3β (PI3K/AKT/GSK3β) and mitogen-activated protein kinase/extracellular regulated protein kinase (MEK/ERK) signaling pathways as well as the enhancement of osteosarcoma cell proliferation, migration, and invasion.