- |||||||||| Piqray (alpelisib) / Novartis
Review, Journal: A Systematic Review of the Prevalence and Diagnostic Workup of PIK3CA Mutations in HR+/HER2- Metastatic Breast Cancer. (Pubmed Central) - Jul 9, 2020 Given the clinical benefit of the PI3Ki alpelisib in patients with PIK3CA mutant HR+/HER2- mBC, determination of tumor PIK3CA mutation status is of importance in managing patients with HR+/HER2- mBC. Prevalence of this mutation and utility of test methodologies likely warrants PIK3CA mutation testing in all patients with this breast cancer subtype via definitive assessment of PIK3CA mutational status.
- |||||||||| Review, Journal: Function, Regulation and Biological Roles of PI3Kγ Variants. (Pubmed Central) - Jul 7, 2020
Here we concentrate on specific PI3Kγ features including its regulation and biological functions. In particular, the roles of its non-catalytic subunits serving as the main regulators determining specificity of class IB PI3Kγ enzymes are highlighted.
- |||||||||| Journal: LAIR-1 suppresses cell growth of ovarian cancer cell via the PI3K-AKT-mTOR pathway. (Pubmed Central) - Jul 7, 2020
Our findings suggest that LAIR-1 may suppress the growth of ovarian cancer cells by serving as a modulator that suppresses PI3K-AKT-mTOR directly or regulating protein synthesis at the translational level. Our results indicate that a LAIR-1-based strategy may prevent or suppress the progression of ovarian cancer.
- |||||||||| [VIRTUAL] Non-Genomic Effects of Glucocorticoids Differentially Modulate Glucocorticoid Receptor Site-Specific Phosphorylation (ATS 2020 Virtual) - Jul 6, 2020 - Abstract #ATSI2020ATS-I_3745;
The role of protein synthesis as well as GR was also examined using cycloheximide and RU486, respectively...While SB203580 and LY294002 had little effect on CB-induced pGR-ser226, PD98059 and SP600125 dramatically reduced pGR-ser226...Conclusion Together, our findings show that the non-genomic effects of GC i) differentially affect GR phosphorylation by upregulating pGR-ser226, but not pGR-ser211, in a manner that is GR-independent but ERK/JNK dependent and ii) rapidly activate MAPK pathways. Further studies are still needed to determine the role of GR-independent early events such as nonspecific interactions with the cell membrane in regulating later GC genomic activities.
- |||||||||| [VIRTUAL] PI3K/AKT Pathway Mediates Enhanced Activation of Eosinophils in Eosinophilic Asthma Phenotype (ATS 2020 Virtual) - Jul 6, 2020 - Abstract #ATSI2020ATS-I_555;
CONCLUSIONS The results indicated that peripheral eosinophils in EA patients were more activated in baseline and after PGD2 stimulation compared with that in NEA patients and healthy controls. The upregulation of PI3K/AKT pathway might be related to the increased activation of eosinophils in EA patients, leading to the "susceptibility" to eosinophilic phenotype in certain group of patients.
- |||||||||| Review, Journal: Insulin-PI3K signalling: an evolutionarily insulated metabolic driver of cancer. (Pubmed Central) - Jul 5, 2020
Here, we discuss the insulin-PI3K signalling cascade and emphasize its roles in normal cells (including coordinating cell metabolism and growth), highlighting the features of this network that make it ideal for co-option by cancer cells. Furthermore, we discuss how this signalling network can affect therapeutic responses and how novel metabolic-based strategies might enhance treatment efficacy for cancer.
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