As the p53-null H1299 non-small cell lung carcinoma cell line is an established p53-null system to study mutant p53 [30,31], we expressed R175H mutant p53 in a tetracycline inducible system to reproduce the previously reported [30] increase in cell proliferation with R175H mutant p53 expression and the expected decrease following ZMC1 and HDACi treatment (Figure S3). This evidence concerns the gene TP53 and small cell lung carcinoma.