ArticleJournal of molecular histology2025
Serum proteomic profiling reveals potential predictive indicators for coronary artery calcification in stable ischemic heart disease.
Article in Journal of molecular histology, 2025. 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
Coronary artery calcification (CAC) is a common complication in patients with stable ischemic heart disease (SIHD). However, the early diagnosis and understanding of the pathogenesis of CAC in SIHD patients remain underdeveloped. This study aimed to analyze aberrant alterations in the serum proteome of SIHD patients, as well as SIHD patients with severe CAC (CAC_SIHD), and to explore the potential risk factors of CAC in SIHD patients. Serum proteomic profiles were obtained from individuals with SIHD (n = 6), CAC_SIHD (n = 6), and healthy controls (n = 9), and were analyzed using nano liquid chromatography tandem mass spectrometry (LC-MS/MS). The aberrant alterations in proteins and immune cells in the serum of SIHD and CAC_SIHD patients were characterized through differential protein expression analysis and single-sample gene set enrichment analysis analysis, respectively. Differentially expressed proteins (DEPs) were further subjected to gene ontology functional enrichment and Kyoto Encyclopedia of Genes and Genomes pathway enrichment analyses. Finally, Receiver Operating Characteristic analysis was performed on the DEPs between SIHD and CAC_SIHD to identify potential predictive factors of CAC. Abnormalities in multiple complement pathways and lipid metabolism were observed in SIHD and CAC_SIHD patients. Moreover, SIHD and CAC_SIHD were characterized by an increased presence of T cells and natural killer cells, along with a reduced presence of B cells. Subsequent analysis of serum proteins revealed that RNASE1 and MSLN may be potential predictive indicators for the early detection and diagnosis of CAC in SIHD patients. In conclusion, our research extensively examined the variations in serum proteins in patients with SIHD and CAC_SIHD, identifying key indicators and metabolic pathways associated with these conditions. These findings not only provide new insights into the pathological mechanisms of SIHD and CAC_SIHD, but also suggest potential factors for the early diagnosis of CAC in SIHD patients, which imply potential clinical applications.
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