Salvianolic Acid B Alleviates Liver Injury by Regulating Lactate-Mediated Histone Lactylation in Macrophages

Salvianolic acid B (Sal B) is the primary water-soluble bioactive constituent derived from the roots of <i<Salvia miltiorrhiza</i< Bunge. This research was designed to reveal the potential mechanism of Sal B anti-liver injury from the perspective of macrophages. In our lipopolysaccharide-induced M1 macrophage model, Sal B showed a clear dose-dependent gradient of inhibition of the macrophage trend of the M1 type. Moreover, Sal B downregulated the expression of lactate dehydrogenase A (LDHA), while the overexpression of LDHA impaired Sal B’s effect of inhibiting the trend of macrophage M1 polarization. Additionally, this study revealed that Sal B exhibited inhibitory effects on the lactylation process of histone H3 lysine 18 (H3K18la). In a ChIP-qPCR analysis, Sal B was observed to drive a reduction in H3K18la levels in the promoter region of the LDHA, NLRP3, and IL-1β genes. Furthermore, our in vivo experiments showed that Sal B has a good effect on alleviating CCl<sub<4</sub<-induced liver injury. An examination of liver tissues and the Kupffer cells isolated from those tissues proved that Sal B affects the M1 polarization of macrophages and the level of histone lactylation. Together, our data reveal that Sal B has a potential mechanism of inhibiting the histone lactylation of macrophages by downregulating the level of LDHA in the treatment of liver injury..

Medienart:

E-Artikel

Erscheinungsjahr:

2024

Erschienen:

2024

Enthalten in:

Zur Gesamtaufnahme - volume:29

Enthalten in:

Molecules - 29(2024), 1, p 236

Sprache:

Englisch

Beteiligte Personen:

Shian Hu [VerfasserIn]
Zehua Yang [VerfasserIn]
Ling Li [VerfasserIn]
Qinwen Yan [VerfasserIn]
Yutong Hu [VerfasserIn]
Feng Zhou [VerfasserIn]
Yang Tan [VerfasserIn]
Gang Pei [VerfasserIn]

Links:

doi.org [kostenfrei]
doaj.org [kostenfrei]
www.mdpi.com [kostenfrei]
Journal toc [kostenfrei]

Themen:

H3K18la
Histone lactylation
LDHA
Liver injury
Macrophages
Organic chemistry
Salvianolic acid B

doi:

10.3390/molecules29010236

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

DOAJ09778091X