The PC12 cells (RCB0009) were obtained from the RIKEN Cell Bank (Tsukuba, Japan). Cells were cultivated in RPMI medium 1640 (ATCC Modification, Thermo Fisher Scientific, Grand Island, NY, USA) in a CO2 incubator (37 °C, 5%) with 5% fetal bovine serum (FBS) (16140063, Gibco, Billings, MT, USA), 10% horse serum (HS) (H1138, SIGMA, St. Louis, MO, USA), and antibiotics (penicillin-streptomycin, P4458, Sigma, St. Louis, MO, USA). Cellmatrix Type IV (Nitta Gelatin Inc., Osaka, Japan) was used to coat the culture dish. PC12 cells cultured in 10 cm sterile culture dishes were incubated for 24 h, and PACAP38 10−7 M was added post-incubation. PC12 cells after 5, 10, 15, 30, 60, and 120 min post-incubation from PACAP38 addition were used for total RNA extraction for DNA microarray analysis [9 (link),10 (link),11 (link),12 (link)]. Similarly, PC12 cells after 15, 30, 60, and 120 min of incubation from PACAP addition were used for total protein extraction for proteomic analysis [9 (link),10 (link),12 (link)].
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