Effects of visfatin on the apoptosis of intestinal mucosal cells in immunological stressed rats.

Abstract

This study was undertaken to determine if visfatin is involved in the inflammation or apoptosis introduced by LPS in rats. Forty 8-week old Wistar rats were divided into four groups (n=10 in each group) and injected with saline, visfatin, LPS and visfatin+LPS co-stimulated via caudal vein. The duodenum, jejunum and ileum were harvested from all the rats. Compared to the saline treated group, visfatin significantly increased the number of TUNEL-positive apoptotic cells and the expression of caspase-3 protein in intestinal mucosa. Similarly, ELISA and western blot analysis also showed the up-regulation of pro-caspase-3 and cleaved caspase-3 expression in the visfatin group compared to the control group. In contrast to LPS, visfatin down-regulated the expression of cleaved-caspase-3 in the visfatin+LPS co-stimulated group, resulting in a significant decrease in apoptosis in intestinal mucosal cells. We observed more pro-caspase-3 positive cells in the visfatin+LPS co-stimulated group. The results indicate that, in the presence of LPS, visfatin plays an important role in the regulation of cell apoptosis and inflammation.

• Authors: Ying Zhou, Huai-Rui Yuan, Lu Cui, Abdur Rahman Ansari, Ke Xiao, You Luo, Xin-Tong Wu, Liang Guo, Faheem Ahmed Khan, Zhi Yang, Hui Song
• Journal: Acta histochemica (Acta Histochem) Vol. 119 Issue 1 Pg. 26-31 (Jan 2017) ISSN: 1618-0372 [Electronic] Germany
• PMID: 27884396 (Publication Type: Journal Article)
• Copyright: Copyright © 2016 Elsevier GmbH. All rights reserved.

Chemical References

• Drug Combinations
• Lipopolysaccharides
• Nicotinamide Phosphoribosyltransferase
• Casp3 protein, rat
• Caspase 3

Topics

• Animals
• Apoptosis (drug effects)
• Caspase 3 (genetics, metabolism)
• Drug Combinations
• Duodenum (cytology, drug effects, immunology)
• Epithelial Cells (cytology, drug effects, immunology)
• Gene Expression
• Ileum (cytology, drug effects, immunology)
• Immunity, Mucosal (drug effects)
• In Situ Nick-End Labeling
• Intestinal Mucosa (cytology, drug effects, immunology)
• Jejunum (cytology, drug effects, immunology)
• Lipopolysaccharides (pharmacology)
• Nicotinamide Phosphoribosyltransferase (pharmacology)
• Rats
• Rats, Wistar