PMID: 32696738Jul 23, 2020Paper

Oridonin ameliorates experimental autoimmune encephalomyelitis by inhibiting NF-κB signaling in T lymphocytes

Xi bao yu fen zi mian yi xue za zhi = Chinese journal of cellular and molecular immunology
Xiao YangPeiguo Zheng

Abstract

Objective To investigate the therapeutic effect and mechanism of oridonin on experimental autoimmune encephalomyelitis (EAE). Methods Female C57BL/6 mice were immunized with MOG/CFA to establish EAE model. The mice were randomly divided into EAE control and oridonin treatment groups. The mice were intraperitoneally injected with oridonin [15 mg/(kg.d)] on day 3, 5 and 7 post immunization, and the control group was injected with the same amount of PBS. EAE scores were recorded and the cell infiltration in the spinal cord was observed by HE staining at the peak of the disease. Flow cytometry analysis was used to detect the proliferation and apoptosis of MOG reactive CD4+ T cells, and the differentiation of pathogenic T helper type 1 (Th1) cells and Th17 cells. The expression of cytokine IFN-γ and IL-17 were detected by ELISA assay. The expression of nuclear factor κBp65 (NF-κBp65), phosphorylated NF-κBp65 (p-NF-κBp65), and phosphorylated IκB (p-IκB) were detected by Western blot analysis. Results Compared with the control group, the incidence and severity of EAE mice in the oridonin-treated groups was reduced, the onset time was delayed, and the immune cell infiltration in the spinal cord was reduced. In vitro and in vivo experim...Continue Reading

Related Concepts

Related Feeds

Apoptosis

Apoptosis is a specific process that leads to programmed cell death through the activation of an evolutionary conserved intracellular pathway leading to pathognomic cellular changes distinct from cellular necrosis

© 2021 Meta ULC. All rights reserved