Borussertib
目录号 : GC65367Borussertib is a covalent-allosteric inhibitor of protein kinase Akt with an IC50 of 0.8 nM and a Ki of 2.2 nM for WT Akt.
Cas No.:1800070-77-2
Sample solution is provided at 25 µL, 10mM.
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- Purity: >98.00%
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Aktwt 0.8nM(IC50) | Aktwt 2.2nM(Ki) |
Borussertib is a covalent-allosteric inhibitor of protein kinase Akt with an IC50 of 0.8 nM and a Ki of 2.2 nM for WT Akt.
Borussertib exhibits excellent cellular activity in the nanomolar range. The EC50 values (cell viability assay) of borussertib in AN3CA, T47D, ZR-75-1, MCF-7, BT-474 and KU-19-19 cells are 191 nM, 48 nM, 5 nM, 277 nM, 373 nM and 7770 nM, respectively[1]. Borussertib specifically binds to two non-catalytic cysteines in AKT at positions 296 and 310 by decorating allosteric ligands with electrophilic warheads at suitable positions, thus enabling the irreversible stabilization of the inactive conformation. Borussertib potently inhibits proliferation of PI3K/PTEN-mutated cell lines[2].
Borussertib reveals a good pharmacokinetic profile with reasonable microsomal stability in human and murine microsomes[1]. PK studies are carried out in mice (2 mg/kg intravenous; 20 mg/kg oral gavage; 20 mg/kg, intraperitoneal), Despite a rather low oral bioavailability (<5%), reaching only a maximum plasma concentration of 78 ng/mL (0.13 ?M), There is a significantly higher bioavailability upon intraperitoneal administration (39.6%), with maximum plasma levels of 683 ng/mL (1.14 ?M)[2].
[1] Uhlenbrock N, et al. Chem Sci. 2019, 10(12):3573-3585. [2] Weisner J, et al. Cancer Res. 2019, 79(9):2367-2378.
Cas No. | 1800070-77-2 | SDF | Download SDF |
分子式 | C36H32N6O3 | 分子量 | 596.68 |
溶解度 | DMSO : 25 mg/mL (41.90 mM; Need ultrasonic) | 储存条件 | Store at -20°C |
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1 mg | 5 mg | 10 mg | |
1 mM | 1.6759 mL | 8.3797 mL | 16.7594 mL |
5 mM | 0.3352 mL | 1.6759 mL | 3.3519 mL |
10 mM | 0.1676 mL | 0.838 mL | 1.6759 mL |
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2.
一定要按照顺序依次将溶剂加入,进行下一步操作之前必须保证上一步操作得到的是澄清的溶液,可采用涡旋、超声或水浴加热等物理方法助溶。
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Preclinical Efficacy of Covalent-Allosteric AKT Inhibitor Borussertib in Combination with Trametinib in KRAS-Mutant Pancreatic and Colorectal Cancer
Cancer Res 2019 May 1;79(9):2367-2378.PMID:30858154DOI:10.1158/0008-5472.CAN-18-2861
Aberrations within the PI3K/AKT signaling axis are frequently observed in numerous cancer types, highlighting the relevance of these pathways in cancer physiology and pathology. However, therapeutic interventions employing AKT inhibitors often suffer from limitations associated with target selectivity, efficacy, or dose-limiting effects. Here we present the first crystal structure of autoinhibited AKT1 in complex with the covalent-allosteric inhibitor Borussertib, providing critical insights into the structural basis of AKT1 inhibition by this unique class of compounds. Comprehensive biological and preclinical evaluation of Borussertib in cancer-related model systems demonstrated a strong antiproliferative activity in cancer cell lines harboring genetic alterations within the PTEN, PI3K, and RAS signaling pathways. Furthermore, Borussertib displayed antitumor activity in combination with the MEK inhibitor trametinib in patient-derived xenograft models of mutant KRAS pancreatic and colon cancer. SIGNIFICANCE: Borussertib, a first-in-class covalent-allosteric AKT inhibitor, displays antitumor activity in combination with the MEK inhibitor trametinib in patient-derived xenograft models and provides a starting point for further pharmacokinetic/dynamic optimization.