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Hu S, Yang Z, Li L, Yan Q, Hu Y, Zhou F, Tan Y, Pei G. Salvianolic Acid B Alleviates Liver Injury by Regulating Lactate-Mediated Histone Lactylation in Macrophages. Molecules 2024; 29:236. [PMID: 38202819 PMCID: PMC10780734 DOI: 10.3390/molecules29010236] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2023] [Revised: 12/25/2023] [Accepted: 12/29/2023] [Indexed: 01/12/2024] Open
Abstract
Salvianolic acid B (Sal B) is the primary water-soluble bioactive constituent derived from the roots of Salvia miltiorrhiza 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 CCl4-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.
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Affiliation(s)
- Shian Hu
- College of Pharmacy, Hunan University of Chinese Medicine, Changsha 410000, China; (S.H.); (L.L.); (Q.Y.); (Y.H.); (F.Z.)
- Key Laboratory of Modern Research of TCM, Education Department of Hunan Province, Changsha 410000, China
| | - Zehua Yang
- Hunan Drug Inspection Center, Changsha 410000, China;
| | - Ling Li
- College of Pharmacy, Hunan University of Chinese Medicine, Changsha 410000, China; (S.H.); (L.L.); (Q.Y.); (Y.H.); (F.Z.)
- Key Laboratory of Modern Research of TCM, Education Department of Hunan Province, Changsha 410000, China
| | - Qinwen Yan
- College of Pharmacy, Hunan University of Chinese Medicine, Changsha 410000, China; (S.H.); (L.L.); (Q.Y.); (Y.H.); (F.Z.)
- Key Laboratory of Modern Research of TCM, Education Department of Hunan Province, Changsha 410000, China
| | - Yutong Hu
- College of Pharmacy, Hunan University of Chinese Medicine, Changsha 410000, China; (S.H.); (L.L.); (Q.Y.); (Y.H.); (F.Z.)
- Key Laboratory of Modern Research of TCM, Education Department of Hunan Province, Changsha 410000, China
| | - Feng Zhou
- College of Pharmacy, Hunan University of Chinese Medicine, Changsha 410000, China; (S.H.); (L.L.); (Q.Y.); (Y.H.); (F.Z.)
- Key Laboratory of Modern Research of TCM, Education Department of Hunan Province, Changsha 410000, China
| | - Yang Tan
- College of Pharmacy, Hunan University of Chinese Medicine, Changsha 410000, China; (S.H.); (L.L.); (Q.Y.); (Y.H.); (F.Z.)
- Key Laboratory of Modern Research of TCM, Education Department of Hunan Province, Changsha 410000, China
| | - Gang Pei
- College of Pharmacy, Hunan University of Chinese Medicine, Changsha 410000, China; (S.H.); (L.L.); (Q.Y.); (Y.H.); (F.Z.)
- Key Laboratory of Modern Research of TCM, Education Department of Hunan Province, Changsha 410000, China
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