Zhuang Kun^*†, Guo Hanqing^*, Tang Hailing^*, Yan Yuan^*, Zhang Jun^†, Zhang Lingxia^*, Han Kun^*, Zhang Xin^*

Oncology Research, Vol.25, No.8, pp. 1399-1407, 2017, DOI:10.3727/096504016X14823648620870

Abstract Gastric cancer (GC) is one of the most frequent epithelial malignancies worldwide. The gastrointestinal (GI) peptide gastrin is an important regulator of the secretion and release of gastric acid from stomach parietal cells, and it also plays a vital role in the development and progression of GC. The aim of the current study was to investigate the role and underlying mechanism of gastrin and autophagy in regulating GC tumorigenesis. Gastrin-17 amide (G-17) was applied in the GC cell lines SGC7901 and MGC-803. The results showed that G-17 maintained the high viability of SGC7901 and MGC-803.… More >

Rafael Martins de OLIVEIRA, Carolina Bernardi STEFANI, Angélica Aparecida Antoniellis SILVEIRA, Marcelo Lima RIBEIRO, José PEDRAZZOLI Jr., Alessandra GAMBERO^*

BIOCELL, Vol.39, No.2-3, pp. 5-8, 2015, DOI:10.32604/biocell.2015.39.005

Abstract Adenosine acts as a gastroprotective factor decreasing inflammation and reducing gastric acid secretion. Quantitative RT-PCR was used to determine the expression of the adenosine receptor genes (A1AR, A2AAR, A2BAR and A3AR) and that of the gastrin receptor B gene (CCKBR) in isolated, short-term cultured enterochromaffin-like (ECL) cells. Both the A1AR and the CCKBR genes were expressed at a level higher than the other genes. Also, the effect of 2-chloroadenosine, a stable agonist of A1 and A2A receptors, was explored on ECL cells, with a resulting inhibition of both basal and gastrin-stimulated histamine release. Also, dipropylcyclopentylxanthine (DPCPX), a More >