(A) GO terms related to second messenger signaling associated with upregulated DEGs.
(B) Change of mRNA levels of genes coding for adenylyl cyclase (AC) and phosphodiesterases.
(C) Schematic of the cAMP/PKA/CREB pathway and drug targets at different steps.
(D) cAMP concentrations for control (n = 6), control + 1 μM FSK (n = 7), and SETD1A+/− cultures (n = 7 from clone 1).
(E) Western blot of pCREB, CREB, and glyceraldehyde 3-phosphate dehydrogenase (GAPDH) for control (n = 8), control + 1 μM FSK (n = 4), and SETD1A+/− cultures (n = 8 from clone 1).
(F and G) Representative images showing pCREB expression and quantification of intensity of pCREB for control (n = 134 cells), control + 1 μM FSK (n = 96 cells),and SETD1A+/− neurons (n = 156 cells, from 3 independent batches; n = 34 from clone 1 and n = 122 from clone 2). Scale bar, 10 μm.
(H and I) Representative raster plot for 30 s recorded by MEA and quantification of network burst rate, showing the effect of the AC agonist FSK (1 μM) on control networks (sample size: control n = 10 wells, control + FSK n = 12 wells, SETD1A+/− n = 28 wells [n = 6 from clone 1 and n = 22 from clone 2]).
(J and K) Representative raster plot for 30 s recorded by MEA and quantification of network burst rate, showing the effect of the AC inhibitor SQ22536 (100 μM) on SETD1A+/− E/I cultures (sample size: control n = 11 wells, SETD1A+/− + SQ22536 n = 13 wells, SETD1A+/− n = 13 wells from clone 2).
(L and M) Representative raster plot for 30 s recorded by MEA and quantification of network burst rate, showing the effect of the PKA inhibitors H89 (2 μM) and KT5720 (1 μM) on SETD1A+/− E/I cultures (sample size: control n = 15 wells, SETD1A+/− + H89 n = 18 wells [n = 3 from clone 1 and n = 15 from clone 2], SETD1A+/− + KT5820 n = 8 wells [n = 2 from clone 1 and n = 6 from clone 2], SETD1A+/− n = 22 wells [n = 7 from clone 1 and n = 15 from clone 2]).
Data represent mean ± SEM. *p < 0.05, **p < 0.01, ***p < 0.001, one-way ANOVA test and post hoc Bonferroni correction.