Article(id=1308840360252638017, tenantId=1146029695717560320, journalId=1189982191388893191, issueId=1308840287129141340, articleNumber=null, orderNo=null, doi=10.16438/j.0513-4870.2025-1222, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1760457600000, receivedDateStr=2025-10-15, revisedDate=1765987200000, revisedDateStr=2025-12-18, acceptedDate=null, acceptedDateStr=null, onlineDate=1789981458962, onlineDateStr=2026-09-21, pubDate=1775923200000, pubDateStr=2026-04-12, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1789981458962, onlineIssueDateStr=2026-09-21, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1789981458962, creator=13701087609, updateTime=1789981458962, updator=13701087609, issue=Issue{id=1308840287129141340, tenantId=1146029695717560320, journalId=1189982191388893191, year='2026', volume='61', issue='4', pageStart='1001', pageEnd='1434', issueExtLink='null', onlineDate='null', pubDate='1775923200000', pubDateStr='2026-04-12', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1789981441528, creator='13701087609', updateTime=1789984228828, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1308851977992368434, tenantId=1146029695717560320, journalId=1189982191388893191, issueId=1308840287129141340, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1308851977992368435, tenantId=1146029695717560320, journalId=1189982191388893191, issueId=1308840287129141340, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=1246, endPage=1257, ext={EN=ArticleExt(id=1308840360474936130, articleId=1308840360252638017, tenantId=1146029695717560320, journalId=1189982191388893191, language=EN, title=Metadoxine enhances mitochondrial function and relieves lipid accumulation in alcoholic liver disease by phosphorylation of MAPK, columnId=1190335348761793317, journalTitle=Acta Pharmaceutica Sinica, columnName=Original Articles, runingTitle=null, highlight=null, articleAbstract=
The aim of this study is to elucidate the mechanism of metadoxine through which it attenuates alcoholic liver disease-associated hepatic steatosis. In this study, the effect of metadoxine on alcoholic liver disease was evaluated in mouse model of alcoholic liver disease induced by high alcohol and high fat diets. In addition, RNA sequencing (RNA-Seq) of the liver tissues was applied to determine the dominant signaling pathways in response to metadoxine treatment. The mechanism of metadoxine on metabolic was investigated by mitochondrial function in HepG2 cells. The animal experiments in this study were conducted in accordance with the guidelines of the Ethics Committee for Scientific Research of Hefei University of Technology and were approved by the Animal Experiment Ethics Committee (approval No.: HUFT20210615002). When mice were fed a diet designed to induce alcoholic liver disease, hepatic lipid accumulation resulted. In this study, the level of serum biomarkers of liver injury, such as alanine aminotransferase (ALT) and aspartate aminotransferase (AST), was substantially decreased in mice treated with metadoxine compared to the model group (P < 0.05). Meanwhile, the inflammatory infiltration and steatosis in liver were alleviated by the administration of metadoxine compared to the model group (P < 0.01). In vitro, metadoxine significantly reversed ethanol overload-induced impairment of mitochondrial respiratory function and increased mitochondrial membrane potential in hepatocytes. Transcriptomic sequencing (RNA-Seq) analysis of liver tissue identified significant enrichment of the mitogen-activated protein kinase (MAPK) signaling pathway. Measurement of MAPK phosphorylation levels in liver tissue showed that metadoxine treatment significantly reduced MAPK phosphorylation (P < 0.01). Furthermore, the protective effects of metadoxine were abolished upon co-treatment with a p38-MAPK inhibitor. Conversely, co-treatment with a p38-MAPK activator reversed the inhibitory effect of metadoxine on p38-MAPK phosphorylation. This study investigated the mechanism of metadoxine in alcoholic liver disease and found that metadoxine enhanced mitochondrial function by the phosphorylation of MAPK and reduced the lipid accumulation and inflammation in alcoholic liver disease.
, authors=Yong-zhi WANG, Yun LI, Yi-fei GUO, Yuan-qi ZHOU, Hong-lin LI, Jian ZHANG
*, authorsList=Yong-zhi WANG, Yun LI, Yi-fei GUO, Yuan-qi ZHOU, Hong-lin LI, Jian ZHANG, authorCompany=null, correspAuthors=Jian ZHANG, authorNote=null, correspAuthorsNote=null, copyrightStatement=Copyright ©2026 Acta Pharmaceutica Sinica. All rights reserved., copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, fund=null), CN=ArticleExt(id=1308840361762587471, articleId=1308840360252638017, tenantId=1146029695717560320, journalId=1189982191388893191, language=CN, title=美他多辛通过MAPK增强线粒体功能降低酒精性肝病脂质蓄积, columnId=1190335348896011050, journalTitle=药学学报, columnName=研究论文, runingTitle=null, highlight=null, articleAbstract=
为探究美他多辛在酒精性肝病中抑制肝脏细胞脂肪变性的作用机制, 本研究采用美他多辛灌胃治疗高脂高乙醇饮食诱导的酒精性肝病小鼠, 通过肝脏组织的转录组测序(RNA sequencing, RNA-Seq) 分析药物作用的通路; 利用乙醇损伤诱导的HepG2细胞线粒体损伤模型探究美他多辛对线粒体功能的影响, 从而探究美他多辛改善脂代谢的作用机制。本研究动物实验遵循合肥工业大学科学研究伦理委员会的规定并通过动物实验伦理审查(批号: HUFT20210615002)。实验结果表明, 酒精性肝病饮食喂养的小鼠出现了肝脏脂质蓄积。体内实验发现, 美他多辛给药后的小鼠血脂水平与模型组相比下降(P < 0.05), 肝功能损伤减少(P < 0.05), 肝细胞炎性浸润和脂肪变性显著性减少(P < 0.01)。体外实验发现, 美他多辛显著逆转了乙醇处理引起的肝细胞线粒体呼吸功能损伤, 并增加了线粒体膜电位。通过肝脏组织的RNA-Seq分析发现丝裂原活化蛋白激酶(mitogen-activated protein kinase, MAPK) 通路明显富集。通过对肝组织的MAPK磷酸化水平的测定, 发现美他多辛处理可显著降低p38 MAPK的磷酸化水平(P < 0.01)。而p38-MAPK抑制剂和美他多辛共处理后, 美他多辛的作用抵消。而p38-MAPK激活剂和美他多辛共处理的情况下, 可逆转美他多辛对p38-MAPK磷酸化的抑制作用。美他多辛促进p38 MAPK磷酸化并增强线粒体呼吸功能, 减少肝细胞的脂质积累, 减少肝脏炎症, 从而改善酒精性肝病。
, authors=王咏枝, 李芸, 郭伊菲, 周园奇, 李洪林, 张健
*, authorsList=王咏枝, 李芸, 郭伊菲, 周园奇, 李洪林, 张健, authorCompany=null, correspAuthors=张健, authorNote=
作者贡献:
王咏枝设计了实验, 整理了所有的数据图, 完成了细胞实验、动物实验取材和造模, 动物实验在合肥工业大学期间完成; 郭伊菲、李芸、周园奇协助完成转录组送样和数据分析; 李洪林为本研究提供了技术性指导; 张健为本实验提供了基金支持和文章的修订, 并负责了整个项目。
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Metadoxine ameliorated hepatic steatosis induced by an alcoholic diet. A: Schematic diagram of alcoholic liver disease modeling and experimental animal grouping; B: Body weight; C: Liver morphology; D: Liver weight; E: Serum alkaline phosphatase (ALP) level; F: Serum alanine aminotransferase (ALT) level; G: Representative images of hematoxylin and eosin (HE) staining; H: Liver pathology score; I: Serum aspartate aminotransferase (AST) level; J: Interleukin-6 (IL-6) level; K: Tumor necrosis factor alpha (TNF-α) level; L: Serum total cholesterol (TC) level; M: Serum triglyceride (TG) level; N: Serum low-density lipoprotein cholesterol (LDL-C) level; O: Serum high-density lipoprotein cholesterol (HDL-C) level. n = 8, mean ± SEM. #P < 0.05, ##P < 0.01 vs the control group; *P < 0.05, **P < 0.01 vs the model group, figureFileSmall=rnAevUElXuJc+JWoFsvwJw==, figureFileBig=4gjzaZOnkz5IzdGRh48mrQ==, tableContent=null), ArticleFig(id=1308840366208549757, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1308840360252638017, language=EN, label=null, caption=null, figureFileSmall=PBZpTAt0JbCpcD6jYJEuqg==, figureFileBig=Fzpk/dEG1yclFJOhw+fOlA==, tableContent=null), ArticleFig(id=1308840366271464318, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1308840360252638017, language=CN, label=Fig.2, caption=
RNA-Seq revealed the differences in lipid metabolism after the administration of metadoxine. A: Principal component analysis plot of differentially expressed genes in the liver after metadoxine administration; B: Bar chart of differentially expressed genes in the liver from Figure 1; C: Volcano plot of differentially expressed genes of model and the metadoxine administration group; D: Pie chart distribution of GO enrichment component analysis; E: GO enrichment pathway analysis diagram; F-I: Relative expression of mRNA level of aldehyde dehydrogenase 1 family, member B1 (Aldh1b1, F), cytochrome P450 family 2 subfamily E member 1 (Cyp2e1, G), sterol regulatory element-binding transcription factor 1 (Srebf1, H), and nuclear factor kappa B subunit 1 (Nfkb1, I). n = 3, mean ± SEM. ##P < 0.01 vs the control group; **P < 0.01 vs the model group, figureFileSmall=PBZpTAt0JbCpcD6jYJEuqg==, figureFileBig=Fzpk/dEG1yclFJOhw+fOlA==, tableContent=null), ArticleFig(id=1308840366346961791, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1308840360252638017, language=EN, label=null, caption=null, figureFileSmall=cD8sXmlTW5Dd6MJ+D6a3Bw==, figureFileBig=ZqhT0Te8CpQYy26BffkgaQ==, tableContent=null), ArticleFig(id=1308840366422459264, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1308840360252638017, language=CN, label=Fig.3, caption=
The invention of the metadoxine improves the mitochondrial function in HepG2 cells. A: The genes related metabolism after metadoxine administration of liver tissues; B: Oxygen consumption rate (OCR) after metadoxine administration in HepG2 cells; C: Basal respiration capacity after metadoxine administration; D: Adenosine triphosphate (ATP) production capacity; E: Mitochondrial respiratory potential after metadoxine administration; F: Non-mitochondrial oxygen consumption capacity; G: Proton leak; H: Mito-tracker deep red staining showing the mitochondrial morphology in HepG2 cells after metadoxine administration. Scar bar: 5 μm; I: Mitochondrial membrane potential (ΔΨm) in HepG2 cells was assessed by JC-1 staining after metadoxine administration. Scar bar: 20 μm. n = 3, mean ± SEM. #P < 0.05, ##P < 0.01 vs the control group; **P < 0.01 vs the model group, figureFileSmall=cD8sXmlTW5Dd6MJ+D6a3Bw==, figureFileBig=ZqhT0Te8CpQYy26BffkgaQ==, tableContent=null), ArticleFig(id=1308840366497956737, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1308840360252638017, language=EN, label=null, caption=null, figureFileSmall=HUvTM8J6+soXCNt6clmHgA==, figureFileBig=7iNfURqir655FAUb5cM9/w==, tableContent=null), ArticleFig(id=1308840366590231426, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1308840360252638017, language=CN, label=Fig.4, caption=
Activation of the p38 MAPK signaling pathway after the metadoxine administration. A: Enrichment of biological process signaling pathways after metadoxine administration; B: KEGG signaling pathway enrichment analysis; C: Protein blot images (in liver tissue); D: Quantitative analysis of protein blots shown in C; E: Protein blot images (in HepG2 cells); F: Quantitative analysis of protein blots shown in E. n = 3, mean ± SEM. ##P < 0.01 vs the control group; **P < 0.01 vs the model group, figureFileSmall=HUvTM8J6+soXCNt6clmHgA==, figureFileBig=7iNfURqir655FAUb5cM9/w==, tableContent=null), ArticleFig(id=1308840366674117507, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1308840360252638017, language=EN, label=null, caption=null, figureFileSmall=bqFlnvvqRuG5NDyK/RVtYg==, figureFileBig=JX9kremfBxWCgouIJzKtBw==, tableContent=null), ArticleFig(id=1308840366741226372, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1308840360252638017, language=CN, label=Fig.5, caption=
Metadoxine reduces hepatic lipid accumulation via the p38 MAPK signaling pathway. A: Representative images of Western blots in HepG2 cells; B, C: Quantitative analysis of bands shown in A; D: Intracellular TC content (in HepG2 cells); E: Intracellular TG content (in HepG2 cells); F: Representative images of Western blots in AML12 cells; G, H: Quantitative analysis of bands shown in F; I: Intracellular TC content in AML12 cells; J: Intracellular TG content in AML12 cells; K: Schematic diagram of the experimental workflow in vitro; L: OCR after metadoxine and skepinone-L administration in HepG2 cells; M: Basal respiration capacity; N: ATP production capacity; O: Mitochondrial respiratory potential; P: Non-mitochondrial oxygen consumption capacity; Q: Proton leak. n = 3, mean ± SEM. ##P < 0.01 vs the control group; **P < 0.01 vs the model group, figureFileSmall=bqFlnvvqRuG5NDyK/RVtYg==, figureFileBig=JX9kremfBxWCgouIJzKtBw==, tableContent=null), ArticleFig(id=1308840366808335237, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1308840360252638017, language=EN, label=null, caption=null, figureFileSmall=5mZKdqYk4bxtQB4WR61iYA==, figureFileBig=B1NJqMj4qeEDCjkjyYxUDQ==, tableContent=null), ArticleFig(id=1308840366888027014, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1308840360252638017, language=CN, label=Fig.6, caption=
Metadoxine prevents p38 MAPK activation under the condition of p38 agonist stimulation. A: Representative Western blot images of p38 and p-p38 protein level in HepG2 cells treated with metadoxine under the condition of p38 agonist; B, C: Quantitative analysis of p-p38 and total p38 from panel (A), normalized to HSP90; D: Representative Western blot images of p38 and p-p38 protein levels in AML12 cells treated with p38 agonist; E, F: Quantitative analysis of p-p38 and total p38 from panel (D), normalized to HSP90. n = 3, mean ± SEM. ##P < 0.01 vs the control group; **P < 0.01 vs the model group, figureFileSmall=5mZKdqYk4bxtQB4WR61iYA==, figureFileBig=B1NJqMj4qeEDCjkjyYxUDQ==, tableContent=null), ArticleFig(id=1308840366971913095, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1308840360252638017, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| Primer | Sequence (5'-3') |
| Aldh1b1-F | CTGAAGGCTTCAAGGGCTTC |
| Aldh1b1-R | TCCTTGTCAGCCTTCTCCAC |
| Cyp2e1-F | GCTTCTTCTTGTGGCGAATG |
| Cyp2e1-R | TCCAATGAGCCTCAACCTCA |
| Srebpf1-F | GCAGCCTCAGCTTAAGGAGA |
| Srebpf1-R | TGGTCGGCTTCTGTAGCAT |
| Nfkb1(p105)-F | CACTGATGACCAGTACAGGAG |
| Nfkb1(p105)-R | GCAGCTTCTGGCACATACTGT |
), ArticleFig(id=1308840368666411913, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1308840360252638017, language=CN, label=Tab.1, caption=
A list of qPCR primer sequences
, figureFileSmall=null, figureFileBig=null, tableContent=
| Primer | Sequence (5'-3') |
| Aldh1b1-F | CTGAAGGCTTCAAGGGCTTC |
| Aldh1b1-R | TCCTTGTCAGCCTTCTCCAC |
| Cyp2e1-F | GCTTCTTCTTGTGGCGAATG |
| Cyp2e1-R | TCCAATGAGCCTCAACCTCA |
| Srebpf1-F | GCAGCCTCAGCTTAAGGAGA |
| Srebpf1-R | TGGTCGGCTTCTGTAGCAT |
| Nfkb1(p105)-F | CACTGATGACCAGTACAGGAG |
| Nfkb1(p105)-R | GCAGCTTCTGGCACATACTGT |
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