- |||||||||| sirolimus / generics
Preclinical, Journal: Preclinical Development of PQR514, a Highly Potent PI3K Inhibitor Bearing a Difluoromethyl-Pyrimidine Moiety. (Pubmed Central) - Oct 18, 2019 It shows superiority in the suppression of cancer cell proliferation and demonstrates significant antitumor activity in an OVCAR-3 xenograft model at concentrations approximately eight times lower than PQR309 (1). The favorable pharmacokinetic profile and a minimal brain penetration promote PQR514 (4) as an optimized candidate for the treatment of systemic tumors.
- |||||||||| Journal: Roles of GalNAc-disialyl Lactotetraosyl Antigens in Renal Cancer Cells. (Pubmed Central) - Oct 18, 2019
Masking of GalNAc-DSLc4 with antibodies as well as PI3K inhibitor suppressed malignant properties of the transfectants. These results suggested that GalNAc-DSLc4 is involved in malignant properties of RCCs by forming a molecular complex with integrins in lipid rafts.
- |||||||||| sirolimus / generics
Review, Journal: The Treatment of Activated PI3Kδ Syndrome. (Pubmed Central) - Oct 18, 2019 These treatments including conventional immunodeficiency therapies such as immunoglobulin replacement, antibiotic prophylaxis, and hematopoietic stem cell transplant. We also discuss the more targeted therapies of mTOR inhibition with sirolimus and selective PI3Kδ inhibitors.
- |||||||||| MEN1611 / Menarini
Preclinical, Journal: Melanocortin type 4 receptor-mediated inhibition of A-type K current enhances sensory neuronal excitability and mechanical pain sensitivity in rats. (Pubmed Central) - Oct 17, 2019 Chemical inhibition of phosphatidylinositol 3-kinase (PI3K) with wortmannin or of class I PI3Ks with the selective inhibitor CH5132799 prevented the MC4R-mediated I response...Additionally, α-MSH significantly increased the action potential firing rate of TG neurons and increased the sensitivity of rats to mechanical stimuli applied to the buccal pad area, and both effects were abrogated by I blockade. Taken together, our findings suggest that α-MSH suppresses I by activating MC4R, which is coupled sequentially to the G complex of the G protein and downstream class I PI3K-dependent p38α signaling, thereby increasing TG neuronal excitability and mechanical pain sensitivity in rats.
- |||||||||| quercetin (LY294002) / Eli Lilly
Journal: Upregulation of GLT-1 via PI3K/Akt Pathway Contributes to Neuroprotection Induced by Dexmedetomidine. (Pubmed Central) - Oct 17, 2019 Furthermore, using Atipamezole and LY294002, we found that dexmedetomidine significantly increased GLT-1 levels in astrocytes via activating α2 adrenergic receptor and PI3K/AKT pathway both in vitro and in vivo study. Overall, our present study indicated that dexmedetomidine had neuroprotective effects on ischemia stroke and upregulation of GLT-1 levels by PI3K/AKT dependent pathway might be the potential mechanism.
- |||||||||| ABTL0812 / Ability Pharma, SciClone, paclitaxel / Generic Mfg.
Preclinical evidences of the therapeutic potential of ABTL0812 in endometrial cancer () - Oct 16, 2019 - Abstract #ESGO2019ESGO_2015; ABTL0812 efficacy was evaluated in tumor onset and progression in a tamoxifen-inducible PTEN-KO murine model and cell line- or patient-derived xenograft (PDX) models...ABTL0812 in vivo therapeutic benefit was confirmed, leading to a marked reduction in tumor growth (p<0.05), impairing the initial progression of endometrial tumorigenesis in PTEN-KO mouse model, and inhibiting tumor progression in PDX models, potentiating carboplatin-paclitaxel treatment...Collectively, we provided strong preclinical evidences of the therapeutic benefit of ABTL0812 as monotherapy or in combination with current first-line treatment in EC. Our findings present a novel and clinically applicable therapeutic strategy for EC and suggest the potential use of TRIB3 as a pharmacodynamic biomarker to monitor ABTL0812 treatment.
- |||||||||| Clinical, Journal: Molecular targets of Chinese herbs: a clinical study of metastatic colorectal cancer based on network pharmacology. (Pubmed Central) - Oct 16, 2019
Eighteen out of 295 herbs showed significant correlation with survival results (P < 0.05). Bioinformatics analysis indicated that the 18 herbs realize anti-CRC activity mainly through suppressing the proliferative activity of ERBB2, peroxisome proliferator-activated receptor gamma, and retinoid X receptor, suppressing angiogenesis via inhibition of VEGFR and VEGFA expression, inhibiting the phosphatidylinositol-3-kinase/AKT1 signaling pathway directly through SRC and AKT1, and reducing tumor necrosis factor-induced inflammation.
- |||||||||| quercetin (LY294002) / Eli Lilly
Journal: PI4KIII inhibitor enviroxime impedes the replication of the hepatitis C virus by inhibiting PI3 kinases. (Pubmed Central) - Oct 16, 2019 Interestingly, the broad-spectrum phosphoinositide 3-kinase (PI3K) inhibitor LY294002 proved to be 10-fold less effective against the resistant replicons...Instead, we demonstrated that both molecules impede HCV replication at least partially by an inhibitory effect on PI3Ks. Moreover, HCV is able to bypass PI3K inhibition by acquiring mutations in its genome.
- |||||||||| Journal: miR-132-3p inhibits tumor malignant progression by regulating LAPTM4B in breast cancer. (Pubmed Central) - Oct 12, 2019
Functionally, miR-132-3p suppressed the migration and invasion of breast carcinoma cells through LAPTM4B by mediating EMT signals, and partially reversed the carcinogenic effects of LAPTM4B by inhibiting the PI3K-AKT-mTOR signaling pathway. Taken together, these findings provide the first comprehensive analysis of miR-132-3p as a direct LAPTM4B-targeted miRNA, and shed light on miR-132-3p/LAPTM4B as a significant functional axis involved in the oncogenesis and metastasis of breast cancer.
- |||||||||| tyrphostin (AG 490) / EMD Serono, Yissum Research Development Company, quercetin (LY294002) / Eli Lilly, PD98059 / Wayne State University
Journal, IO Biomarker: Adropin reduces hypoxia/reoxygenation-induced myocardial injury via the reperfusion injury salvage kinase pathway. (Pubmed Central) - Oct 12, 2019 Furthermore, no significant difference was observed in phosphorylated-STAT3/total-STAT3 expression between the adropin and SI/R groups and Janus kinase 2 inhibitor AG490 did not significantly inhibit the protective role of adropin. These results indicate that adropin exerts a protective effect against SI/R injury through the RISK pathway instead of the survivor activating factor enhancement pathway.
- |||||||||| etoposide IV / Generic Mfg.
Journal: Dual inhibition of PI3K/mTOR signaling in chemoresistant AML primary cells. (Pubmed Central) - Oct 12, 2019 Remarkably, dual PI3K/mTOR inactivation was cytotoxic also to leukemia initiating cells. All together, our findings indicate that signaling activation profiling associated to gene expression can be very useful to stratify patients and improve therapy.
- |||||||||| chloroquine phosphate / Generic Mfg.
Journal: Perfluoroalkyl acid exposure induces protective mitochondrial and endoplasmic reticulum autophagy in lung cells. (Pubmed Central) - Oct 11, 2019 Anti-oxidant (NAC) treatment did not rescue cells from death, indicating that oxidative stress is not the reason of cytotoxicity. Inhibition of autophagy by Atg5 siRNA and chloroquine even increased the toxicity of PFAAs, suggesting that PFAAs-autophagy was induced as the secondary effects of organelle damages and played a protective role during cell death.
- |||||||||| Zydelig (idelalisib) / Gilead
Journal: Idelalisib impairs TREM-1 mediated neutrophil inflammatory responses. (Pubmed Central) - Oct 9, 2019 In conclusion, PI3K inhibitors might cause a neutropenia-like susceptibility to infections in patients by leading to impaired PMN functionality. This should be considered when evaluating patients for infections treated with such inhibitors in daily clinical routine.
- |||||||||| Journal: Genetic Defects in Phosphoinositide 3-Kinase δ Influence CD8 T Cell Survival, Differentiation, and Function. (Pubmed Central) - Oct 8, 2019
Despite uncontrolled EBV infection, many APDS/PASLI patients had normal or higher frequencies of EBV-specific CD8 T cells. In this review, we discuss data pertaining to CD8 T cell function in APDS/PASLI, including increased cell death, expression of exhaustion markers, and altered killing of autologous EBV-infected B cells, and how these and other data on PI3K provide insight into potential cellular defects that prevent clearance of chronic infections.
- |||||||||| Journal: Schwann cells augment cell spreading and metastasis of lung cancer. (Pubmed Central) - Oct 8, 2019
In summary, SC can regulate the CXCL5/CXCR2/PI3K/AKT/GSK-3β/Snail-Twist pathway to promote EMT, invasiveness, and metastatic potential of lung cancer cells. Our results reveal a new role of the PNS in the functional organization of the tumor microenvironment and tumor progression.
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