Tunicamycin (2 µg/mL; 24 hours; CD44+/CD24- and original MCF7 cells) treatment increases the spliced XBP-1, ATF6 nuclear translocation level and CHOP protein expression in CD44+/CD24- and original MCF7 cells. Tunicamycin-induced ER stress suppresses CD44+/CD24- phenotype cell subpopulation and in vitro invasion and accelerates tumorosphore formation. Under effect of Tunicamycin, the results show that inhibited invasion, increased cell death, suppressed proliferation and reduced migration in the CD44+/CD24- and CD44+/CD24- rich MCF7 cell culture.
Western Blot Analysis
Tunicamycin (0.1 mg/kg or 0.5 mg/kg) treatment dramatically suppresses tumor growth in the CD133 +/- MHCC97L cells xenograft model (BALB/c ( nu/nu ) mice).