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. 2023 Jan 16;25(2):351–365. doi: 10.1038/s41556-022-01064-x

Extended Data Fig. 7. Signaling pathways involved in neuronal cell communications.

Extended Data Fig. 7

(a) Balloon-plot of known neuronal and glial cell markers (SOX10-MKI67). Progenitor: SOX10123, FOXD3124, ASCL142, Neuronal: PHOX2B125, PRPH126, NRG1127, TUBB3128, Sympathetic neurons: DBH, TH129, Parasympathetic neurons: NOS1, VIP130, Sensory neurons: PRDM12, P2RY1, TRPV1131,132, Schwann Cell Progenitors (SCPs): CDH19, MPZ, PLP1133, Glial cells: GFAP, S100B134,135, Chromaffin cells: PNMT, PENK, CARTPT136 and Proliferating cells: MKI67114, PCNA120. The remaining genes correspond to the top-5, most selective genes for each cluster. From the statistically significant genes (adjusted p-value < 0.001, MAST with Bonferroni correction using all features), the top-10 (log2 fold-change) were sorted according to the percent of positive cells and the top-5 were plotted. Gene order follows the cluster order. Balloon size: percent of positive cells. Color intensity: scaled expression. Blue: high, Gray: low. (b) Balloon-plot of the detected cholinergic-synapse pathway genes (KEGG id: 217716). Balloon size: percent of positive cells. Color intensity: log2(normalized UMI-counts+1) (library size was normalized to 10.000) expression. Blue: high, Gray: low. (c) Heatmap of differentially expressed transcription factors (TFs) along the SCP-neuronal trajectory, according to tradeSeq21. Stars: analyzed genes in ‘D-E’. Color intensity: scaled expression. Dark red: high, Gray: low. (d) UMAP-plots of SOX10, ASCL1 and ISL1 TFs. Expression levels: log2(normalized UMI-counts+1) (library size was normalized to 10.000). Blue: high. Gray: zero. (e) Confocal-microscopy image of an 8.5 pcw ganglion, showing SOX10, ASCL1 and ISL1 expression, detected with immunofluorescence. Dashed outlines: manually segmented nuclei. SOX10pos SCPs (arrows), SOX10pos ASCL1pos transitioning SCPs (asterisks), ASCL1pos SOX10neg immature neurons (hashes), ISL1pos ASCL1neg mature neurons (arrowheads). Scale-bar: 5 µm.