ArticlePloS one2026
PFKFB3 exacerbates myocardial injury by accelerating CXCR4hi neutrophil mobilization after acute myocardial infarction.
Article in PloS one, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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1 citing paper in PubMed.
- Lactylation in cardiac repair: Nexus and therapeutic opportunity.Journal of molecular and cellular cardiology plus · 2026Review
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7 authors.
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Abstract
backgroundCXCR4hi neutrophil mobilization is a key cause of myocardial damage after acute myocardial infarction (AMI). 6-Phosphofructo-2-kinase/fructose-2,6-biphosphatase 3 (PFKFB3), a key glycolytic enzyme, plays a crucial role in regulating neutrophil function. However, researchers have not clearly determined whether PFKFB3 is involved in AMI-induced CXCR4hi neutrophil mobilization.
methodsFirst, the circulating CXCR4hi neutrophil percentage and neutrophil Pfkfb3 mRNA expression were measured in AMI patients and left anterior descending coronary artery (LADCA)-ligated mice. Next, we explored the relationship between PFKFB3 and CXCR4 expression in lipopolysaccharide (LPS)-stimulated cell models. Neu-PFKFB3-/- mice were used to investigate the effect of conditional knockout of the Pfkfb3 gene in neutrophils on AMI-induced myocardial inflammatory injury.
resultsIn AMI patients, the expression level of Pfkfb3 gene was markedly regulated in AMI-induced neutrophils and was positively related to the content of plasma inflammatory factors in AMI patients. Further study revealed that PFKFB3 promotes CXCR4hi neutrophil mobilization by reprogramming glycolytic metabolism and subsequently exacerbates inflammatory injury in the myocardial tissues of AMI model mice. However, specific knockout of Pfkfb3 gene in neutrophils protects mice from AMI-induced myocardial inflammatory injury by inhibiting the mobilization of CXCR4hi neutrophils.
conclusionsPFKFB3 exacerbates AMI-induced myocardial inflammatory injury by accelerating CXCR4hi neutrophil mobilization. The mechanism involves PFKFB3-mediated reprogramming of glycolytic metabolism.
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