ArticleBiomedical reports2026
Silencing of lncRNA TFAP2A-AS1 attenuates the development of acute coronary syndrome by inhibiting TFAP2A expression.
Article in Biomedical reports, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Acute coronary syndrome (ACS), the acute manifestation of ischemic heart disease, remains a major cause of morbidity and mortality worldwide. The present study aimed to elucidate the preliminarily biological role and underlying mechanism of the long non-coding RNA (lncRNA) transcription factor AP-2α (TFAP2A)-AS1 in ACS. The viability, apoptosis, invasion, and migration of human coronary artery endothelial cells (HCAECs) were assessed using Cell Counting Kit-8, flow cytometric, Transwell, and wound healing assays. In addition, reverse transcription-quantitative PCR was performed to examine the expression levels of TFAP2A-AS1 and TFAP2A. Western blotting was performed to determine the protein level of TFAP2A. Furthermore, a mouse model of ACS was established to investigate the effects of TFAP2A-AS1 and TFAP2A on blood lipid levels. Histological changes were evaluated through hematoxylin and eosin staining. The results revealed high levels of TFAP2A-AS1 and TFAP2A expression in patients with ACS and in mouse models. In HCAECs, knockdown of TFAP2A-AS1 resulted in decreased TFAP2A expression, whereas silencing of TFAP2A did not affect the expression of TFAP2A-AS1. Interference with either TFAP2A-AS1 or TFAP2A in HCAECs led to suppressed cell viability, invasion, and migration, as well as an increased apoptosis rate. Furthermore, it was demonstrated that the absence of both TFAP2A-AS1 and TFAP2A reduced blood lipid levels and improved myocardial injury in a mouse model of ACS. In conclusion, groundbreaking findings revealed that the suppression of TFAP2A-AS1 could effectively mitigate the progression of ACS by reducing the expression of TFAP2A. This finding not only offers crucial insight into the pathogenesis of ACS but also provides a solid theoretical foundation for the development of novel therapeutic interventions in clinical settings.
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