Cluster analysis of differentially expressed lncRNAs between astrocytomas and NAT samples.

<p>The lncRNA expression levels, as measured by qRT-PCR, were normalized, mean-centered, clustered, and plotted as a heat map for the training set (A), the validation set (B), and all samples (C). The dendrogram generated by the cluster analysis shows a clear separation of the astrocytoma and the NAT samples based on the 9 or 7 lncRNA profiles.