Fig. 1

Unsupervised hierarchical cluster analysis of the expression levels of the top 50 differentially expressed miRNAs in untreated and radiochemotherapy treated HN1957 and HN2092 primary HNSCC cells. Control samples (C) were treated with DMSO and sham-irradiated, treated samples (T) were treated with 5-FU and irradiated with 2 × 2 Gy. A and B represent technical replicates; 1, 2 and 3 represent biological replicates