In vitro: The compound displays a high degree of selectivity over the alpha (>1000 fold), beta (>30-50 fold), and gamma (>15-50 fold) isoforms. Additionally, the compound causes a half-maximal inhibition of human whole blood CD19 cell proliferation between 100-300 nM. Treatment of PBMC with RP5264 results initially in a G2/M arrest followed by subsequent increase in the number of Sub G0 cells. Viability assays demonstrate that the compound causes a significant inhibition in growth as well as Akt phosphorylation of immortalized and primary leukemic cells.
In vivo: The compound exhibits good oral absorption with favourable pharmacokinetic properties in rodents. It also has an excellent safety profile.
|Cell lines||Multiple Myeloma resistant (MM-1R) or sensitive (MM-1S) cells|
|Preparation method||Multiple Myeloma resistant (MM-1R) or sensitive (MM-1S) cells are incubated with desired concentrations of RP5264. Growth is assessed after 96 h by a MTT assay.|
|Incubation time||96 h|
|Animal models||Female Balb/c mice|
|Dosages||12.5, 25, 50 mg/kg|
|Administration||12.5, 25, 50 mg/kg|
|Body Surface Area (m2)||0.007||0.025||0.15||0.05||0.02||0.5|
|Animal A (mg/kg) = Animal B (mg/kg) multiplied by||Animal B Km|
|Animal A Km|
For example, to modify the dose of resveratrol used for a mouse (22.4 mg/kg) to a dose based on the BSA for a rat, multiply 22.4 mg/kg by the Km factor for a mouse and then divide by the Km factor for a rat. This calculation results in a rat equivalent dose for resveratrol of 11.2 mg/kg.
|Solubility||100 mg/mL in DMSO|
Silencing c-Myc translation as a therapeutic strategy through targeting PI3Kδ and CK1ε in hematological malignancies.
Deng C, et al. Blood. 2017 Jan 5;129(1):88-99. PMID: 27784673.
The novel PI3K-δ inhibitor TGR-1202 enhances Brentuximab Vedotin-induced Hodgkin lymphoma cell death via mitotic arrest.
Locatelli SL, et al. Leukemia. 2016 Dec;30(12):2402-2405. PMID: 27499137.
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