Protective Effect of Chikusetsu saponin IVa on Hydrogen Peroxide Induced Injury of IPEC-J2 Cells

Abstract

Objectives: Chikusetsu saponin IVa (CHS-IVa) is a saponin compound widely found in herbs such as Panax japonicus C.A.Mey, which has various functions. The purpose of this study was to investigate the protective effect of CHS-IVa on oxidative stress and inflammation in porcine intestinal epithelial cells (IPEC-J2) under the action of hydrogen peroxide (H2O2). Methods: Cell viability was detected by MTT method. The cell scratch experiment was used to test the repair ability of CHS-IVa on cells. The levels of lactate dehydrogenase (LDH), catalase (CAT), superoxide dismutase (SOD), glutathione (GSH), thioredoxin reductase (TrxR), and malondialdehyde (MDA) were tested using the relevant kits. The expression levels of TNF-α, NF-κB, IL-6, IL-1α, and P65 were detected by qPCR. Results: MTT results showed that CHS-IVa at 50 to 100 μg/mL could enhance the activity of IPEC-J2 cells within 24 hours. CHS-IVa at 80 and 100 μg/mL could promote damage repair and effectively inhibit the release of LDH production in IPEC-J2 cells after exposure to H2O2. Additionally, it had a restorative effect on the loss of TrxR, SOD, GSH, and CAT. At the same time, the treatment of CHS-IVa significantly decreased the mRNA expression of NF-κB, IL-6, and P65 after H2O2 treatment. Conclusion: These findings indicate that a specific concentration of CHS-IVa has a protective effect on IPEC during oxidative stress, thereby enhancing their ability to repair damage.