LCLs were cultured in RPMI medium and incubated with antidepressants for 21 days as described elsewhere.16 (link) Fluoxetine and citalopram (Sigma-Aldrich, Taufkirchen, Germany) stock solutions were prepared in dimethyl sulfoxide. Proliferation rates were measured using the EdU (5-ethynyl-2′-deoxyuridine) incorporation assays (Thermo Fisher Scientific, Darmstadt, Germany; catalog no. C10635) as reported before.16 (link) Relative proliferation rates were calculated as ratio between treated and untreated samples of the same cell lines.
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