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Article Publish Status: FREE
Abstract Title:

Ganoderic Acid A alleviates the degeneration of intervertebral disc via suppressing the activation of TLR4/NLRP3 signaling pathway.

Abstract Source:

Bioengineered. 2022 May ;13(5):11684-11693. PMID: 35506157

Abstract Author(s):

Dan Wang, Xianhua Cai, Feng Xu, Hui Kang, Yanjin Li, Ruibing Feng

Article Affiliation:

Dan Wang

Abstract:

As a multifactorial disease, intervertebral disc degeneration (IVDD) causes many spinal-related diseases, which causes disability in the workforce and heavy social costs all over the world. Recently, Ganoderic Acid A (GAA) has been reported to play many pharmacological effects. However, its effect on IVDD remains unclear. In the present study, our study determined that GAA significantly inhibited HOinduced apoptosis, release of inflammatory cytokines and oxidative stress mediators in the nucleus pulposus (NP) cells. Moreover, GAA also suppressed HOinduced major matrix degrading proteases (MMP-3, MMP-13, ADAMTS4 and ADAMTS5) associated with NP degradation. Additionally, we found NP protective ability of GAA by up-regulating extra cellular matrix anabolic factors like type II collagen (Col II) and aggrecan in NP cells. Furthermore, we also demonstrated that GAA suppressed the activation of TLR4/NLRP3 in HO-stimulated NP cells. Thus, our results demonstrate that GAA inhibited the HOinduced apoptosis, oxidative stress, and inflammatory responses through the depression of TLR4/NLRP3 signaling axis. GAA possess NP protective properties and may be of value in suppressing the pathogenesis of IVDD.

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