Protein kinase D (PKD) is a serine/threonine protein kinase that is activated by diacylglycerol, commonly downstream of PKC signaling. The three human PKD isoforms target a variety of proteins to alter cell proliferation, survival, invasion, and protein transport. CRT0066101 is an inhibitor of all three PKD isoforms (ICs = 1, 2.5, and 2 nM for PKD1, PKD2, and PKD3, respectively). It exhibits selectivity for PKD against a panel of >90 protein kinases, including PKCα, PKBα, MEK, ERK, c-Raf, c-Src, and c-Abl. It can block cell proliferation, induce apoptosis, and reduce the viability of pancreatic cancer cells both in vitro and in vivo.
CRT0066101 (hydrochloride) is the trihydrochloride salt form of CRT0066101. CRT0066101 (hydrochloride) is an orally active PKD inhibitor with IC50 values of 1 nM, 2.5 nM and 2 nM for PKD1, PKD2, and PKD3, respectively. CRT0066101 (hydrochloride) is also an inhibitor for PIM2 with an IC50 of ~135.7 nM. CRT0066101 (hydrochloride) exhibits anti-inflammatory activity in mice LPS induced lung injury models, and has anticancer effects.
IC50&Target
PKD1/PKCμ PKD3
1 nM (IC50) 2 nM (IC50)
体外研究
CRT0066101 trihydrochloride (5 µM; 1 h) can block basal and NT-induced pS916-PKD1/2 (activated PKD1/2) in Panc-1 and Panc-28 cells. CRT0066101 eliminates NT-induced Hsp27 (pS82-Hsp27) phosphorylation, attenuates PKD1-mediated NF-κB activation, and abolishes the expression of NF-κB-dependent proliferative and pro-survival proteins.
CRT0066101 trihydrochloride significantly inhibits the proliferation of Panc-1 cells, with an IC50 value of 1 µM. It induces apoptosis in Panc-1 cells 6-10-fold. CRT0066101 markedly reduces the proliferation of Colo357, Panc-1, MiaPaCa-2, and AsPC-1 cells but has some effect on Capan-2 cells.
Western Blot Analysis
Cell Line:
Panc-1 and Panc-28 cells stimulation with neurotensin (NT)
Concentration:
5 µM
Incubation Time:
1 hour
Result:
Blocked both the basal and NT-induced pS916-PKD1/2 (activated PKD1/2).
体内研究
CRT0066101 trihydrochloride (80 mg/kg/day; oral gavage; once daily; for 21 days) effectively inhibits tumor growth in vivo in the Panc-1 orthotopic model. CRT0066101 trihydrochloride (10 mg/kg, intraperitoneal injection, every other day for three doses) provides protective effects against LPS-induced pneumonia in C57BL/6J mice and mitigates lung injury.
Animal Model:
CR-UK nu/nu mice injected with Panc-1 cells
Dosage:
80 mg/kg/day
Administration:
Oral gavage; once daily; for 21 days
Result:
Potently blocked tumor growth in vivo.
Animal Model:
LPS induced lung injury in C57BL/6J mice
Dosage:
10 mg/kg
Administration:
i.p., once every two days for 3 times
Result:
Inhibited the expression of MyD88 and TLR4, inhibited the phosphorylation of NF-κB, ERK and JNK.
分子式
C18H22N6O.3HCl
分子量
447.79
CAS号
1781742-22-0
运输条件
Room temperature in continental US; may vary elsewhere.