- |||||||||| MK-2206 / Merck (MSD), Zyclara (imiquimod) / Mochida, Mylan, Bausch Health, quercetin (LY294002) / Eli Lilly
Journal: Cornulin Is Induced in Psoriasis Lesions and Promotes Keratinocyte Proliferation via PI3K-Akt Pathways. (Pubmed Central) - Nov 2, 2019 Furthermore, topical use of anti-psoriatic calcipotriol effectively decreased expression of CRNN, inhibited the Akt activation and improved the IMQ-stimulated psoriasis-like pathologies. Taken together, these results suggest that induced expression of CRNN may contribute to the pathogenesis of psoriasis.
- |||||||||| quercetin (LY294002) / Eli Lilly
Preclinical, Journal: Bi S -Tween 20 Nanodots Loading PI3K Inhibitor, LY294002, for Mild Photothermal Therapy of LoVo Cells In Vitro and In Vivo. (Pubmed Central) - Oct 31, 2019 Moreover, the mechanism studies also demonstrate that Bi S -Tween 20@LY294002 potently kills LoVo cancer cells under low-power near-infrared light irradiation, by downregulating the expression of heat shock protein 70 (HSP70) so as to increase the sensitivity of tumor cell hyperthermia and activating BAX/BAK-regulated mitochondrial apoptosis pathway. The results demonstrate that the newly synthesized multifunctional nanoplatform paves a new avenue for accurate therapy of photothermal-resistant cancer.
- |||||||||| quercetin (LY294002) / Eli Lilly
Preclinical, Journal: DZNep inhibits H3K27me3 deposition and delays retinal degeneration in the rd1 mice. (Pubmed Central) - Oct 31, 2019 PI3K-Akt pathway and H3K27me3 form a feedback loop in rd1 retina, thus PI3K inhibitor LY294002 reduces phosphorylation of Ezh2 at serine 21 and enhances H3K27me3 deposition, and inhibiting H3K27me3 by DZNep can activate PI3K-Akt pathway by de-repressing gene expression of PI3K subunits Pik3r1 and Pik3r3. These findings suggest that histone methylation, especially H3K27me3 deposition is a novel mechanism and therapeutic target for retinal degenerative diseases, similar to H3K27me3-mediated ataxia-telangiectasia in Atmmouse.
- |||||||||| Journal: PI3K signaling in chronic obstructive pulmonary disease: mechanisms, targets, and therapy. (Pubmed Central) - Oct 30, 2019
PI3Ks have thus emerged as promising alternative drug targets for COPD and a wide array of pan-isoform and isoform-selective inhibitors have been tested in preclinical models and are currently being evaluated in clinical studies. Here, we summarize the recent knowledge on the involvement of PI3K enzymes in the pathophysiology of COPD, and we will discuss the most recent results arising from the preclinical as well as the clinical testing of PI3K inhibitors as novel therapeutics for COPD.
- |||||||||| Zydelig (idelalisib) / Gilead
Journal, Checkpoint inhibition: Phosphoinositide 3-kinase δ inhibition promotes antitumor responses but antagonizes checkpoint inhibitors. (Pubmed Central) - Oct 29, 2019 The PI3Kδ inhibitor idelalisib has proven highly effective in the clinical treatment of chronic lymphocytic leukemia and the potential to extend the use of PI3Kδ inhibitors to nonhematological cancers is being evaluated...PI3Kδ inactivation antagonized the antitumor effects of tumor vaccines and checkpoint blockade therapies intended to boost the CD8+ T cell response. These findings provide insights into mechanisms by which PI3Kδ inhibition promotes antitumor immunity and demonstrate that the mechanism is distinct from that mediated by immune checkpoint blockade.
- |||||||||| Kisqali (ribociclib) / Novartis
Targeting the RB pathway in medulloblastoma (Ballroom Lawn) - Oct 29, 2019 - Abstract #SNO2019SNO_595; We are currently evaluating the combination of brain penetrant compounds in Group 3 MB PDOXs. The identification of potent drug combinations should provide new therapeutic options for the treatment of Group 3 MB, one of the most difficult to treat.
- |||||||||| buparlisib (BKM120) / Novartis, Adlai Nortye
PI3K inhibition in conjunction with the ketogenic diet reduces growth and neuroinflammation in pediatric high-grade glioma (Ballroom Lawn) - Oct 29, 2019 - Abstract #SNO2019SNO_444; We measured pro-inflammatory cytokines in glioma cells treated with BKM-120 and phenformin in comparison to vehicle-treated cells to determine their effect on neuro-inflammation. We also applied conditioned medium from glioma cells treated with BKM-120 and phenformin to cortical neurons to measure oxidative stress. We found that phenformin reduced the production of pro-inflammatory cytokines, including TNF-alpha, IFN-gamma, IL-1beta, and IL-6, by BKM-120-treated glioma cells. Cortical neurons treated with conditioned medium from BKM-120- and phenformin-treated glioma cells exhibited less oxidative stress than those treated with BKM-120 alone. Our results demonstrate that lowering glucose utilization and insulin feedback increases efficacy of PI3K inhibition and decreases neuro-inflammation. By using the ketogenic diet to reduce systemic glucose levels, this strategy may enhance efficacy and reduce morbidity of PI3K inhibitors in this population.
- |||||||||| quercetin (LY294002) / Eli Lilly
Journal: Perfluorooctane sulfonate mediates secretion of IL-1β through PI3K/AKT NF-кB pathway in astrocytes. (Pubmed Central) - Oct 29, 2019 In addition, pretreatment with AKT inhibitor LY294002 could obviously attenuate PFOS-induced NF-κB activation and IL-1β secretion. Taken together, these results indicated that PFOS could facilitate reactive astrocytosis and the secretion of pro-inflammatory cytokines through AKT-dependent NF-κB signaling pathway.
- |||||||||| Biomarker, Journal: Phosphoinositide 3-kinase-delta could be a biomarker for eosinophilic nasal polyps. (Pubmed Central) - Oct 28, 2019
Furthermore, CRS patients possessing NP with higher p110δ expression displayed more eosinophils in NP tissue and blood, higher levels of IL-5 in NP tissue, and more severe features of the disease. Therefore, PI3K-δ may contribute to the formation of NP, especially eosinophilic NP associated with more severe clinical presentations and radiological features.
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