Figure 7From: Activating transcription factor-3 (ATF3) functions as a tumor suppressor in colon cancer and is up-regulated upon heat-shock protein 90 (Hsp90) inhibition Expression of ATF3 in human colon cancer. Corresponding colon cancer and non-tumorous tissues of patients with surgically resected colon cancer (T3-T4) were analyzed by PCR for the expression of ATF3. The expression of ATF3mRNA was markedly reduced in colon cancer specimens. Bars: mean ± SEMBack to article page