Kira8 (AMG-18) is a mono-selective IRE1α inhibitor that allosterically attenuates IRE1α RNase activity with an IC 50 of 5.9 nM
In Vitro
Kira8 blocks IRE1α oligomerization, and potently inhibits IRE1α RNase activity against XBP1 and Ins2 RNAs. Kira8 more potently reduces IRE1α-driven apoptosis in INS-1 cells than KIRA6 and also reverses XBP1 splicing promoted by GNF-2. MCE has not independently confirmed the accuracy of these methods. They are for reference only.
In Vivo
Male Ins2 +/Akita mice are injected i.p. with KIRA8 (50 mg/kg; daily; for 35 days), significant reduction of hyperglycemia become apparent over several weeks . One week treatment of pre-diabetic NODs mice with Kira8 (50 mg/kg; i.p.; once a day) leads to significant reductions in islet XBP1 splicing and TXNIP mRNAs, and preserves Ins1/Ins2, BiP and MANF mRNAs . MCE has not independently confirmed the accuracy of these methods. They are for reference only. Animal Model: Male Ins2 +/Akita mice Dosage: 50 mg/kg Administration: Injected i.p.; daily; for 35 days Result: Significant reduction of hyperglycemia became apparent over several weeks.
Ethanol : 76.92 mg/mL (127.96 mM; ultrasonic and adjust pH to 5 with HCl) DMSO : 65 mg/mL (108.13 mM; Need ultrasonic) H2O : 30 mg/mL (49.91 mM; ultrasonic and warming and adjust pH to 2 with HCl and heat to 60°C)
分子量
601.100 g/mol
XLogP3
5.900
氢键供体数Hydrogen Bond Donor Count
3
氢键受体数Hydrogen Bond Acceptor Count
9
可旋转键计数Rotatable Bond Count
8
精确质量Exact Mass
600.171 Da
单同位素质量Monoisotopic Mass
600.171 Da
拓扑极表面积Topological Polar Surface Area
127.000 Ų
重原子数Heavy Atom Count
42
形式电荷Formal Charge
0
复杂度Complexity
971.000
同位素原子数Isotope Atom Count
0
定义的原子立体中心计数Defined Atom Stereocenter Count
1
未定义的原子立体中心计数Undefined Atom Stereocenter Count
0
定义的键立体中心计数Defined Bond Stereocenter Count
0
未定义的键立体中心计数Undefined Bond Stereocenter Count
0
所有立体化学键的总数The total count of all stereochemical bonds