SR18662 is a potent inhibitor of Krüppel-like factor five (KLF5) with an IC50 of 4.4 nM and an analogue of ML264 with improved inhibitory potency against colorectal cancer cells. SR18662 can be used for the study of colorectal cancer.
体外研究
SR18662 (0-10 μM; 24-72 hours) significantly reduces growth and proliferation of CRC cells as compared to treatment with vehicle control, ML264 . It shows improved efficacy in reducing viability of multiple CRC cell lines. SR18662 (10 μM; 24-72 hours) shows a significant increase in the number of apoptotic cells at both early and late states in DLD-1 and HCT116 cells. SR18662 (1 μM; 72 hours) reduces the expression of cyclins (cyclins E, A2, and B1) and components of MAPK (p-Erk) and WNT signaling pathways (p-GSK3 β) in cells.
Cell Viability Assay
Cell Line:
CRC cells
Concentration:
0-10 μM
Incubation Time:
24 hours, 48 hours, 72 hours
Result:
Induced anti-tumor activity in colorectal cancer cell lines.
Apoptosis Analysis
Cell Line:
DLD-1 and HCT116 cells
Concentration:
10 μM
Incubation Time:
24 hours, 48 hours, 72 hours
Result:
Increased apoptosis of colorectal cancer cell lines.
Western Blot Analysis
Cell Line:
DLD-1 and HCT116 cells
Concentration:
1 μM
Incubation Time:
72 hours
Result:
Reduced levels of cyclins E, A2, and B1 inhibits activity of MAPK, WNT/β-catenin signaling pathways and decreases the levels of cyclins.
体内研究
SR18662 (intraperitoneal injection; 5-10 mg/kg; daily or twice daily; 5 days injection, days break, and 5 days) significantly reduces the growth of tumors in a mouse xenograft model.
Animal Model:
Nude mice with DLD-1 cells
Dosage:
5 mg/kg; 10 mg/kg; 25 mg/kg
Administration:
Intraperitoneal injection; 5mg/kg daily, 5mg/kg twice a day,10 mg/kg daily, 10 mg/kg twice per day, 25mg/kg daily, and 25 mg/kg twice per day; 5 days of injections, 2 days break, and 5 days of injections
Result:
Caused a significant dose-dependent inhibition of xenograft growth in mice.
运输条件
Room temperature in continental US; may vary elsewhere.