ER stress did not affect expression of CK2.

<p>(A) Primary cultured glial cells were treated with tunicamycin (Tm: 0.01 µg/mL) or thapsigargin (Tg: 0.01 µM) for 18 h and subjected to Western blotting. ER stress increased GRP78 levels whereas it did not affect levels of CK2. (B) Densitometric analysis of expression of CK2. n = 4/group. Results are expressed as the means ± S.E.