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ResearchIn-Press PreviewCardiologyImmunology
Open Access | 10.1172/JCI194664
1Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
2Department of Cardiology, the Second Affiliated Hospital of Harbin Medical University, Harbin, China
3Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
4Department of Ultrasound, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
5School of Life Science and Technology, Harbin Institute of Technology, Harbin, China
6Harbin Medical University, Harbin, China
Find articles by Wang, X. in: PubMed | Google Scholar
1Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
2Department of Cardiology, the Second Affiliated Hospital of Harbin Medical University, Harbin, China
3Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
4Department of Ultrasound, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
5School of Life Science and Technology, Harbin Institute of Technology, Harbin, China
6Harbin Medical University, Harbin, China
Find articles by Yan, X. in: PubMed | Google Scholar
1Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
2Department of Cardiology, the Second Affiliated Hospital of Harbin Medical University, Harbin, China
3Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
4Department of Ultrasound, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
5School of Life Science and Technology, Harbin Institute of Technology, Harbin, China
6Harbin Medical University, Harbin, China
Find articles by Mang, G. in: PubMed | Google Scholar
1Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
2Department of Cardiology, the Second Affiliated Hospital of Harbin Medical University, Harbin, China
3Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
4Department of Ultrasound, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
5School of Life Science and Technology, Harbin Institute of Technology, Harbin, China
6Harbin Medical University, Harbin, China
Find articles by Chen, Y. in: PubMed | Google Scholar
1Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
2Department of Cardiology, the Second Affiliated Hospital of Harbin Medical University, Harbin, China
3Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
4Department of Ultrasound, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
5School of Life Science and Technology, Harbin Institute of Technology, Harbin, China
6Harbin Medical University, Harbin, China
Find articles by Liu, S. in: PubMed | Google Scholar
1Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
2Department of Cardiology, the Second Affiliated Hospital of Harbin Medical University, Harbin, China
3Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
4Department of Ultrasound, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
5School of Life Science and Technology, Harbin Institute of Technology, Harbin, China
6Harbin Medical University, Harbin, China
Find articles by Sui, J. in: PubMed | Google Scholar
1Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
2Department of Cardiology, the Second Affiliated Hospital of Harbin Medical University, Harbin, China
3Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
4Department of Ultrasound, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
5School of Life Science and Technology, Harbin Institute of Technology, Harbin, China
6Harbin Medical University, Harbin, China
Find articles by Tong, Z. in: PubMed | Google Scholar
1Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
2Department of Cardiology, the Second Affiliated Hospital of Harbin Medical University, Harbin, China
3Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
4Department of Ultrasound, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
5School of Life Science and Technology, Harbin Institute of Technology, Harbin, China
6Harbin Medical University, Harbin, China
Find articles by Wang, P. in: PubMed | Google Scholar
1Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
2Department of Cardiology, the Second Affiliated Hospital of Harbin Medical University, Harbin, China
3Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
4Department of Ultrasound, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
5School of Life Science and Technology, Harbin Institute of Technology, Harbin, China
6Harbin Medical University, Harbin, China
Find articles by Cui, J. in: PubMed | Google Scholar
1Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
2Department of Cardiology, the Second Affiliated Hospital of Harbin Medical University, Harbin, China
3Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
4Department of Ultrasound, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
5School of Life Science and Technology, Harbin Institute of Technology, Harbin, China
6Harbin Medical University, Harbin, China
Find articles by Yang, Q. in: PubMed | Google Scholar
1Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
2Department of Cardiology, the Second Affiliated Hospital of Harbin Medical University, Harbin, China
3Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
4Department of Ultrasound, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
5School of Life Science and Technology, Harbin Institute of Technology, Harbin, China
6Harbin Medical University, Harbin, China
Find articles by Zhang, Y. in: PubMed | Google Scholar
1Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
2Department of Cardiology, the Second Affiliated Hospital of Harbin Medical University, Harbin, China
3Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
4Department of Ultrasound, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
5School of Life Science and Technology, Harbin Institute of Technology, Harbin, China
6Harbin Medical University, Harbin, China
Find articles by Wang, D. in: PubMed | Google Scholar
1Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
2Department of Cardiology, the Second Affiliated Hospital of Harbin Medical University, Harbin, China
3Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
4Department of Ultrasound, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
5School of Life Science and Technology, Harbin Institute of Technology, Harbin, China
6Harbin Medical University, Harbin, China
Find articles by Sun, P. in: PubMed | Google Scholar
1Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
2Department of Cardiology, the Second Affiliated Hospital of Harbin Medical University, Harbin, China
3Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
4Department of Ultrasound, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
5School of Life Science and Technology, Harbin Institute of Technology, Harbin, China
6Harbin Medical University, Harbin, China
Find articles by Song, W. in: PubMed | Google Scholar
1Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
2Department of Cardiology, the Second Affiliated Hospital of Harbin Medical University, Harbin, China
3Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
4Department of Ultrasound, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
5School of Life Science and Technology, Harbin Institute of Technology, Harbin, China
6Harbin Medical University, Harbin, China
Find articles by Jin, Z. in: PubMed | Google Scholar
1Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
2Department of Cardiology, the Second Affiliated Hospital of Harbin Medical University, Harbin, China
3Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
4Department of Ultrasound, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
5School of Life Science and Technology, Harbin Institute of Technology, Harbin, China
6Harbin Medical University, Harbin, China
Find articles by Shi, M. in: PubMed | Google Scholar
1Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
2Department of Cardiology, the Second Affiliated Hospital of Harbin Medical University, Harbin, China
3Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
4Department of Ultrasound, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
5School of Life Science and Technology, Harbin Institute of Technology, Harbin, China
6Harbin Medical University, Harbin, China
Find articles by Zhao, P. in: PubMed | Google Scholar
1Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
2Department of Cardiology, the Second Affiliated Hospital of Harbin Medical University, Harbin, China
3Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
4Department of Ultrasound, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
5School of Life Science and Technology, Harbin Institute of Technology, Harbin, China
6Harbin Medical University, Harbin, China
Find articles by Yang, J. in: PubMed | Google Scholar
1Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
2Department of Cardiology, the Second Affiliated Hospital of Harbin Medical University, Harbin, China
3Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
4Department of Ultrasound, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
5School of Life Science and Technology, Harbin Institute of Technology, Harbin, China
6Harbin Medical University, Harbin, China
Find articles by Liu, M. in: PubMed | Google Scholar
1Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
2Department of Cardiology, the Second Affiliated Hospital of Harbin Medical University, Harbin, China
3Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
4Department of Ultrasound, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
5School of Life Science and Technology, Harbin Institute of Technology, Harbin, China
6Harbin Medical University, Harbin, China
Find articles by Wang, N. in: PubMed | Google Scholar
1Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
2Department of Cardiology, the Second Affiliated Hospital of Harbin Medical University, Harbin, China
3Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
4Department of Ultrasound, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
5School of Life Science and Technology, Harbin Institute of Technology, Harbin, China
6Harbin Medical University, Harbin, China
Find articles by Chen, T. in: PubMed | Google Scholar
1Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
2Department of Cardiology, the Second Affiliated Hospital of Harbin Medical University, Harbin, China
3Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
4Department of Ultrasound, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
5School of Life Science and Technology, Harbin Institute of Technology, Harbin, China
6Harbin Medical University, Harbin, China
Find articles by Ji, Y. in: PubMed | Google Scholar
1Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
2Department of Cardiology, the Second Affiliated Hospital of Harbin Medical University, Harbin, China
3Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
4Department of Ultrasound, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
5School of Life Science and Technology, Harbin Institute of Technology, Harbin, China
6Harbin Medical University, Harbin, China
Find articles by Yu, B. in: PubMed | Google Scholar
1Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
2Department of Cardiology, the Second Affiliated Hospital of Harbin Medical University, Harbin, China
3Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
4Department of Ultrasound, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
5School of Life Science and Technology, Harbin Institute of Technology, Harbin, China
6Harbin Medical University, Harbin, China
Find articles by Zhang, M. in: PubMed | Google Scholar
Published October 9, 2025 - More info
Lactylation, a post-translational modification derived from glycolysis, plays a pivotal role in ischemic heart diseases. Neutrophils are predominantly glycolytic cells that trigger intensive inflammation of myocardial ischemia reperfusion (MI/R). However, whether lactylation regulates neutrophil function during MI/R remains unknown. Employing lactyl proteomics analysis, S100a9 was lactylated at lysine 26 (S100a9K26la) in neutrophils, with elevated levels observed in both acute myocardial infarction (AMI) patients and MI/R model mice. S100a9K26la was demonstrated driving the development of MI/R using mutant knock-in mice. Mechanistically, lactylated S100a9 translocated to the nucleus of neutrophils, where it binded to the promoters of migration-related genes, thereby enhancing their transcription as a co-activator and promoting neutrophil migration and cardiac recruitment. Additionally, lactylated S100a9 was released during NETosis, leading to cardiomyocyte death by disrupting mitochondrial function. The enzyme dihydrolipoyllysine-residue acetyltransferase (DLAT) was identified as the lactyltransferase facilitating neutrophil S100a9K26la post-MI/R, a process that could be restrained by α-lipoic acid. Consistently, targeting DLAT/S100a9K26la axis suppressed neutrophil burden and improved cardiac function post-MI/R. In patients with AMI, elevated S100a9K26la levels in plasma were positively correlated with cardiac death. These findings highlight S100a9 lactylation as a potential therapeutic target for MI/R and as a promising biomarker for evaluating poor prognosis of MI/R.