MK-28 is a potent and selective PERK activator. MK-28 exhibits remarkable pharmacokinetic properties and high BBB penetration in mice.
体外研究
MK-28 (0-100 μM) shows PERK selectivity in vitro on a 391-kinase panel and rescues cells (but not PERK cells) from ER stress-induced apoptosis.
ATF4 protein levels are increased signifcantly, up to 2.5-fold, in STHdhQ cells at high MK-28 concentration. CHOP and GADD34 mRNA levels show a signifcant increase in both cell types, up to 10- and 5-fold respectively.
MK-28 has little or no efect on EIF2AK1 (HRI) or EIF2AK2 (PKR), but it activats EIF2AK4 (GCN2).
Apoptosis Analysis.
Cell Line:
STHdhQ cells.
Concentration:
0-100 μM.
Incubation Time:
48 h.
Result:
Rescued cells from ER stress-induced apoptosis.
体内研究
MK-28 (10 mg/kg, IP, single dose) shows a maximum concentration (Cmax) of 105ng/ml and 30min half-life in plasma, 40 min afer the IP injection.
MK-28 (1 mg/kg, IP, daily for 28 days) improves systemic function and survival in R6/2 mice and induces increased levels of eIF2α-P in the mouse brain striatum.
MK-28 (Transient subcutaneous delivery) significantly improves motor and executive functions and delayed death onset in R6/2 mice, showing no toxicity.
Animal Model:
R6/2 mice.
Dosage:
1 mg/kg.
Administration:
IP, daily for 28 days.
Result:
Incerased the survival.
分子式
C24H20N4O2
分子量
396.44
CAS号
864388-65-8
运输条件
Room temperature in continental US; may vary elsewhere.