- |||||||||| [VIRTUAL] Relationship between obesity and alterations in the PI3K/AKT/mTOR pathway () - Dec 26, 2020 - Abstract #ASHP2020ASHP_1637;
Treatment lines prior to initiation of targeted therapy varied greatly, and differences in the multiple types of malignancies studied in this analysis was a limitation. More prospective studies that are statistically powered are warranted in order to assess the true impact of obesity on progression free survival and response to targeted therapy.
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Journal, IO Biomarker: Synergistic role of JAK/STAT5 and PI3K/AKT signaling pathways in regulating eIF4B in acute leukemia (Pubmed Central) - Dec 22, 2020 We found that phosphorylation levels of eIF4B in acute leukemia cells were significantly reduced in response to treatment with either LY294002 (PI3K inhibitor), AKTi (AKT inhibitor) or SMI-4A (Pim inhibitor)...In contrast, silencing eIF4B inhibited the growth of acute leukemia cells as engrafted tumors in nude mice. Taken together, our results indicate the synergistic role of JAK/STAT5/Pim and PI3K/AKT/mTOR signaling pathways in regulating eIF4B phosphorylation in acute leukemia, and highlight eIF4B as a candidate therapeutic target for treatment of acute leukemia.
- |||||||||| Journal: Sanggenol L Induces Apoptosis and Cell Cycle Arrest via Activation of p53 and Suppression of PI3K/Akt/mTOR Signaling in Human Prostate Cancer Cells. (Pubmed Central) - Dec 20, 2020
Sanggenol L induced caspase-dependent apoptosis (up-regulation of PARP and Bax or down-regulation of procaspase-3, -8, -9, Bid, and Bcl-2), induction of caspase-independent apoptosis (up-regulation of AIF and Endo G on cytosol), suppression of cell cycle (down-regulation of CDK1/2, CDK4, CDK6, cyclin D1, cyclin E, cyclin A, and cyclin B1 or up-regulation of p53 and p21), and inhibition of PI3K/Akt/mTOR signaling (down-regulation of PI3K, p-Akt, and p-mTOR) in prostate cancer cells. These results suggest the induction of apoptosis via suppression of PI3K/Akt/mTOR signaling and cell cycle arrest via activation of p53 in response to sanggenol L in prostate cancer cells.
- |||||||||| Preclinical, Journal: Effects of lycopene on vascular remodeling through the LXR-PI3K-AKT signaling pathway in APP/PS1 mice. (Pubmed Central) - Dec 20, 2020
In the present study, we found: 1) lycopene improved learning and memory in an AD mouse model; 2) lycopene inhibited amyloid plaque aggregation and neuroinflammation; and 3) lycopene induced LXR expression and activated the LXR-PI3K-AKT signaling pathway. Our findings suggest that promotion of neurogenesis and improvement of the functions of the neurovascular unit could be a novel direction for the development of AD therapies.
- |||||||||| Journal: Morusin inhibited human osteosarcoma via PI3K-AKT signaling pathway. (Pubmed Central) - Dec 20, 2020
Genetically and clinically annotated HNSCC PDXs could be useful preclinical tools for evaluating biomarkers, therapeutic targets, and new drug discovery. In conclusion, our study indicates morusin as a potential candidate for osteosarcoma therapy.
- |||||||||| Journal: Regulation of hepatic insulin signaling and glucose homeostasis by sphingosine kinase 2. (Pubmed Central) - Dec 20, 2020
Either reexpressing functional SphK2 or pharmacologically inhibiting sphingosine production restores insulin sensitivity in SphK2-deficient hepatocytes. In conclusion, the current study provides both experimental findings and mechanistic data showing that SphK2 and sphingosine in the liver are critical regulators of insulin sensitivity and glucose homeostasis.
- |||||||||| Piqray (alpelisib) / Novartis
Journal: PIK3CA C-terminal frameshift mutations are novel oncogenic events that sensitize tumors to PI3K-α inhibition. (Pubmed Central) - Dec 20, 2020 P110α-selective pharmacologic inhibition blocks transformation in cells and mammary tumors characterized by PIK3CA C-terminal mutation. Taken together, these results suggest patients with breast and other tumors characterized by PIK3CA C-terminal frameshift mutations may derive benefit from p110α-selective inhibitors, including the recently FDA-approved alpelisib.
- |||||||||| Journal: Isovitexin modulates autophagy in Alzheimer's disease via miR-107 signalling. (Pubmed Central) - Dec 19, 2020
This probing underscored that miR-107 could be a pivotal regulatory button in the activation of molecular signals linked with the beneficial autophagic process and anti-inflammatory activities in relation to IVX treatment. Hence, this report exemplifies that IVX could guard against Aβ toxicity and serve as an effectual treatment for patients afflicted with AD.
- |||||||||| Journal: SRPX2 boosts pancreatic cancer chemoresistance by activating PI3K/AKT axis. (Pubmed Central) - Dec 19, 2020
IGF-1 treatment could changeover the impact of si-SRPX2 on proliferation, migration, invasion and chemoresistance of PC cells (P < 0.05). The SRPX2-PI3K/AKT/mTOR axis could play a role in modifying progression and chemoresistance of PC cells, which might help to improve PC prognosis.
- |||||||||| Journal: TMEM158 promotes pancreatic cancer aggressiveness by activation of TGFβ1 and PI3K/AKT signaling pathway. (Pubmed Central) - Dec 18, 2020
Furthermore, mechanism-related investigations disclosed that activation of TGFβ1 and PI3K/AKT signal might be responsible for TMEM158-triggered PC aggressiveness. Collectively, TMEM158 was upregulated in PC and promoted PC cell proliferation, migration, and invasion through the activation of TGFβ1 and PI3K/AKT signaling pathways, highlighting its potential as a tumor promoter and a therapeutic target for PC.
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Journal: Antiosteoclastic bone resorption activity of osteoprotegerin via enhanced AKT/mTOR/ULK1-mediated autophagic pathway. (Pubmed Central) - Dec 18, 2020 Treatment with OPG and chloroquine, an autophagy inhibitor, attenuated OPG-induced inhibition of osteoclastic bone resorption, whereas rapamycin (RAP), an autophagy inducer, enhanced OPG-induced inhibition of differentiation, survival, and bone resorption activity of osteoclasts...LY294002, a phosphatidylinositol-4,5-bisphosphate 3-kinase (PI3K)/AKT pathway inhibitor, attenuated the decline in pAKT, but enhanced the decline in pmTOR and the increase in pULK1 following OPG treatment...The PI3K inhibitor 3-methyladenine partly blocked OPG-induced autophagy. Thus, the results revealed that OPG inhibits osteoclast bone resorption by inducing autophagy via the AKT/mTOR/ULK1 signaling pathway.
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