We found increased expression of GRP94, the 94-kDa glucose-regulated protein, in HeLa cells 24 h after treatment with luteolin. Luteolin increased the levels of GRP94 mRNA and protein, but it did not increase the expression of unfolded protein response (UPR)-regulated genes. In addition, luteolin also enhanced GRP94 promoter activity, suggesting that it… (More)
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