Frontier
Copyright ©2014 Baishideng Publishing Group Co.
World J Gastroenterol. Apr 28, 2014; 20(16): 4467-4482
Published online Apr 28, 2014. doi: 10.3748/wjg.v20.i16.4467
Figure 7
Figure 7 Increased expression of early growth response-1 and increased early growth response-1 transcriptional activity in gastric mucosa of aging vs young rats. A: Representative Western blotting demonstrate increased early growth response-1 (egr-1) protein expression in gastric mucosa of aging (vs young) rats; B: Assessment of egr-1 transcriptional activity in gastric mucosa of young and aging rats was performed using the TranSignal™ TF-TF Interaction Array (Panomics, Redwood City, CA). The egr-1 cis-element is spotted in duplicate: in the first row DNA was spotted without dilution; in the second row DNA was diluted ten times (1:10). In gastric mucosa of aging rats there is a significant, 2.7-fold increase (vs that of young rats; P < 0.02) in binding of egr-1 protein to its GC-rich cis elements that are highly expressed in the PTEN gene promoter. Reproduced with permission from Tarnawski et al[1].