Journal: The Journal of Neuroscience
Article Title: Graded Coexpression of Ion Channel, Neurofilament, and Synaptic Genes in Fast-Spiking Vestibular Nucleus Neurons
doi: 10.1523/JNEUROSCI.1500-19.2019
Figure Lengend Snippet: Genome-wide screening of genes that are coexpressed with fast-spiking ion channel genes in a graded manner. A, Dendrogram showing expression correlation of genes in MVN neurons. Gene expression was quantified by microarray using a pooled cDNA from each cell type. The branch indicated in red includes all of the ion channels that showed highly correlated expression with maximal firing rates of MVN neurons. Note that the microarray failed to detect Cacna1a even though its high expression was confirmed by qPCR (Fig. 4B, right). B, Transcript levels of neurofilaments plotted against Kcna1. Symbols in B indicate MVN cell types as shown in the legend on the right. C, Transcript levels of synaptic molecules (Vamp1, Cplx1, Syt2) plotted against Kcnc1. D, Transcript levels of Scn4b against Kcnc1. E, Transcript levels of representative genes that did not show positive correlation with fast-spiking ion channel genes, plotted against Kcnc1. For specifics of cell classification, see Figure 5-1, and for the list of probe sets included in the red branch of the dendogram in Figure 5A, see Figure 5-2.
Article Snippet: For 37 of 55 genes whose transcript levels are reported in this paper, the amplification rates were empirically measured by qPCR with a serial dilution series of cDNA prepared from mouse brain total RNA (Zyagen).
Techniques: Genome Wide, Expressing, Gene Expression, Microarray