CYH33 methanesulfonate 是一种具有口服活性的，高选择性 PI3Kα 抑制剂，对 α/β/δ/γ 亚型的 IC₅₀ 分别为 5.9 nM/598 nM/78.7 nM/225 nM。CYH33 methanesulfonate 抑制 Akt 和 ERK 的磷酸化，并显着诱导乳腺癌和非小细胞肺癌 (NSCLC) 细胞 G1 期阻滞。CYH33 methanesulfonate 具有有效的抗实体瘤的活性。

CYH33 methanesulfonate is an orally active, highly selective PI3Kα inhibitor with IC 50 s of 5.9 nM/598 nM/78.7 nM/225 nM against α/β/δ/γ isoform, respectively. CYH33 methanesulfonate inhibits phosphorylation of Akt, ERK and induces significant G1 phase arrest in breast cancer cells and non-small cell lung cancer (NSCLC) cells. CYH33 methanesulfonate has potent activity against solid tumors.

Solid

PI3Kα 5.9 nM (IC50) PI3Kβ 598 nM (IC5

CYH33 methanesulfonate inhibits cell proliferation with IC50s below 1?μM in 56% (18/32) of the breast cancer cell lines.
CYH33 (0.012-1 μM; for 24 hours) methanesulfonate significantly arrests T47D and MCF7 cells in G1 phase in a concentration-dependent manner.
CYH33 (4-1000 nM; 1 hour) methanesulfonate concurrently inhibits phosphorylation of ERK and Akt in both T47D and MCF7 cells.
CYH33 (0.11-1 μM; 24 hours) methanesulfonate fails to induce apoptosis in MCF7 and MDA-MB-231?cells.
has not independently confirmed the accuracy of these methods. They are for reference only.

CYH33 (2-20 mg/kg; oral; once a day for 21 days) methanesulfonate potently restrains tumor growth in mice bearing human breast cancer cell xenografts.
Single administration of CYH33 (20?mg/kg; oral) methanesulfonate significantly down-regulates the level of phosphorylated Akt in tumor tissues, demonstrating the suppression of PI3K signaling in nude mice.
CYH33 (10?mg/kg; oral; once a day for 18-d or 20-d respectively) methanesulfonate delays the restoration of blood glucose and area under the curve (AUC) of blood glucose increased upon CYH33 treatment in T47D xenografts and R26-Pik3ca;MMTV-Cre mice.
has not independently confirmed the accuracy of these methods. They are for reference only.

Room temperature in continental US; may vary elsewhere.

4°C, sealed storage, away from moistur In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture)

[1]. Haoyue Xiang, et al. Abstract LB-268: Discovery of clinical candidate methyl (5-(6-((4-(methylsulfonyl)piperazin-1-yl)methyl)-4-morpholinopyrrolo[2,1-f][1,2,4]triazin-2-yl)-4-(trifluoromethyl)pyridin-2-yl)carbamate (CYH33) : A highly potent and selective PI3K alpha inhibitor for the treatment of advanced solid tumors. AACR Annual Meeting 2018; April 14-18, 2018
[2]. Xue-Ling Liu, et al. Decrease in Phosphorylated ERK Indicates the Therapeutic Efficacy of a Clinical PI3Kα-selective Inhibitor CYH33 in Breast Cancer. Cancer Lett. 2018 Oct 1;433:273-282.