We saw very tight correlation between the transcript levels of HDAC1 and HDAC2 across the eight non-neuroendocrine cell lines, with increased expression in NSCLC relative to normal lung (Figure 1A and 1C), suggesting that transcription of HDAC1 and HDAC2 may be co-regulated. The gene discussed is HDAC1; the disease is non-small cell lung carcinoma.