Knockdown of
MAFA in EndoC-βH1 (Ravassard et al., 2011 (
link)) cells was achieved using the TARGETplus siRNA pool against human
MAFA (no. L-027343-01). Briefly, 2 × 10
6 cells were transfected with siRNA (50 pmol) or a non-targeting control (no. D001810) using the
Dharmafect no. 1 reagent (GE Dharmacon no. T-2001) following the manufacturer’s protocol. RNA was harvested 72 hr post-transfection and isolated using
Trizol reagent (Life Technologies) and the
DNA-Free RNA Kit (Zymo Research). The
iScript cDNA synthesis kit (Bio-Rad) was used for cDNA synthesis, and qPCR reactions were performed on a
LightCycler 480 II (Roche) and analyzed by the ΔΔCT method.
Knockdown of
MafA or control sequences in βTC-6 cells was performed using 30 nM
MAFA RNAi oligonucleotides (no. s196287; Thermo Scientific) or negative control no. 1 (Thermo Scientific) with transfection reagent (
Dharmafect; Thermo Scientific). Total RNA was extracted after 72 hr transfection, and qPCR was performed as described above.
Knockdown of
MAFA resulted in a 50% reduction of the MAFA transcript and protein levels (data not shown).
Ganic E., Singh T., Luan C., Fadista J., Johansson J.K., Cyphert H.A., Bennet H., Storm P., Prost G., Ahlenius H., Renström E., Stein R., Groop L., Fex M, & Artner I. (2016). MafA-Controlled Nicotinic Receptor Expression Is Essential for Insulin Secretion and Is Impaired in Patients with Type 2 Diabetes. Cell reports, 14(8), 1991-2002.