NOTCH transcriptional activity was analyzed using luciferase assays, as previously described [18 (link),19 (link),22 (link),84 (link)]. We also treated C3H10T1/2 cells with the γ-secretase inhibitor DAPT (N-[N-(3,5-Difluorophenacetyl)-L-alanyl]-S-phenylglycine t-butyl ester) (10 μM), used as a NOTCH-signaling-inhibition control. Luciferase assays were measured using the Orion II microplate luminometer (Berthold), and samples were processed with the Dual-Luciferase Reporter Assay System (Promega), following the supplier’s recommendations. Assays were repeated at least three times.
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