Publications by authors named "Xiongkang Gan"

Background: Coronary artery disease (CAD) has become a dominant economic and health burden worldwide, and the role of autophagy in CAD requires further clarification. In this study, we comprehensively revealed the association between autophagy flux and CAD from multiple hierarchies. We explored autophagy-associated long noncoding RNA (lncRNA) and the mechanisms underlying oxidative stress-induced human coronary artery endothelial cells (HCAECs) injury.

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  • The study focuses on long noncoding RNAs (lncRNAs) and their potential to encode novel proteins important for human cancers, particularly gastric cancer (GC), highlighting the uncharacterized open reading frames (ORFs) within these lncRNAs.
  • Researchers identified a specific lncRNA, HCP5, which contains a non-canonical ORF that encodes a microprotein called HCP5-132aa, shown to be overexpressed in GC cells and to promote cell proliferation by inhibiting a process called ferroptosis.
  • The study further demonstrates that HCP5-132aa stabilizes certain mRNAs involved in tumor growth and successfully tested the effectiveness of knocking out this
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  • The study identifies a small protein derived from long non-coding RNAs, called HDSP, that is linked to gastric cancer.
  • HDSP promotes cancer by preventing the degradation of MECOM, which then increases the transcription of SPINK1, a gene that activates cancer-related signaling pathways.
  • Targeting HDSP either by knocking it down or using it as a neoantigen enhances anti-tumor immunity and suggests it could be a new therapeutic target for treating gastric cancer.
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N6-methyladenosine (m6A) is the most prevalent internal RNA modification in mammals. However, limited research has been conducted on the role of m6A in coronary artery disease (CAD). We conducted methylated RNA immunoprecipitation sequencing and RNA sequencing to obtain a genome-wide profile of m6A-modified long noncoding RNAs (lncRNAs) in human coronary artery smooth muscle cells either exposed to oxidized low-density lipoprotein treatment or not, and the characteristics of the expression profiles were explored using Gene Ontology and Kyoto Encyclopedia of Genes and Genomes analyses.

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Background: As a novel circRNA, BTBD7_hsa_circ_0000563 has not been fully investigated in coronary artery disease (CAD). Our aim is to reveal the possible functional role and regulatory pathway of BTBD7_hsa_circ_0000563 in CAD via exploring genes combined with BTBD7_hsa_circ_0000563.

Methods: A total of 45 peripheral blood mononuclear cell (PBMC) samples of CAD patients were enrolled.

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Background: CircZBTB46 has been identified as being associated with the risk of coronary artery disease (CAD) and has the potential to be a diagnostic biomarker for CAD. However, the specific function and detailed mechanism of circZBTB46 in CAD are still unknown.

Methods: The expression levels and properties of circRNAs were examined using qRT‒PCR, RNA FISH, and subcellular localization analysis.

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Background: The landscape of specific peripheral circulating immune cell subsets at the single-cell level in the occurrence and development of coronary artery disease (CAD) remains poorly understood.

Methods: We conducted single-cell RNA sequencing (scRNA-seq) of peripheral blood mononuclear cells (PBMCs) from subjects with CAD (n = 3), and controls (n = 3), as well as downstream analysis including cell- and gene-level approaches. This explored the characteristics of peripheral circulating immune cells between CADs and controls by means of Uniform manifold approximation and projection (UMAP), Monocle3 package, CellPhoneDB, and single-cell regulatory network inference and clustering (SCENIC).

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Article Synopsis
  • - This study focuses on the role of long non-coding RNAs (lncRNAs) in relation to metabolic risk factors for coronary artery disease (CAD), analyzing data from patients with CAD and healthy controls through high throughput sequencing and validation with qRT-PCR.
  • - Out of over 26,000 lncRNAs identified, 2,149 were found to be differentially expressed in CAD patients, with PDXDC1-AS1 and SFI1-AS1 showing significant differences and potential as diagnostic biomarkers.
  • - The analysis revealed that PDXDC1-AS1 and SFI1-AS1 not only differentiate CAD patients from controls but also indicate protective effects against CAD and significant interactions with environmental risk factors like smoking. *
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Background: Recent studies suggest that classical coronary risk factors play a significant role in the pathogenesis of coronary artery disease. Our study aims to explore the interaction of circRNA with classical coronary risk factors in coronary atherosclerotic disease.

Method: Combined analysis of RNA sequencing results from coronary segments and peripheral blood mononuclear cells of patients with coronary atherosclerotic disease was employed to identify critical circRNAs.

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The modification of N6-methyladenosine (m6A) modification is implicated in human diseases. However, considerable uncertainty is associated with the regulatory mechanisms of m6A circRNAs in coronary artery disease (CAD), which require further clarification. In this study, m6A-modified RNA immunoprecipitation sequencing (MeRIP-seq) was conducted to investigate m6A-modified circRNAs in human coronary artery smooth muscle cells (HCASMCs) and to identify potential biomarkers for CAD.

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Background: BTBD7_hsa_circ_0000563 is a novel circRNA and contains conserved binding sites with RNA-binding proteins. However, BTBD7_hsa_circ_0000563 has not been fully studied in coronary artery disease (CAD). We aimed to clarify the diagnostic value and the possible functional role of BTBD7_hsa_circ_0000563 in CAD.

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The aim of this study is to investigate mRNA expression profiling by RNA sequencing (RNA-seq) in patients with coronary artery disease (CAD) and validate differentially expressed genes (DEGs) as novel biomarkers for CAD. Transcriptome-wide mRNA expression analysis of peripheral blood mononuclear cells was performed in five CAD patients and five controls. Functional enrichment analyses, protein-protein interaction network construction, and hub gene selection were further conducted.

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Circular RNAs (circRNAs) function as promising biomarkers and therapeutic targets for coronary artery disease due to their high stability, covalently closed structure, and potential gene regulation. We aimed to identify the expression profile and role of circular RNAs (circRNAs) in coronary artery disease (CAD). We performed RNA sequence analysis of circRNAs in peripheral blood mononuclear cells of five patients with CAD and five controls.

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We aimed to investigate differentially expressed long non-coding RNAs (lncRNAs) and messenger RNAs (mRNAs) in atherosclerosis and validate the expression of lncRNAs and co-expressed target genes in proliferation and migration models of human coronary artery smooth muscle cells (HCASMCs). Ten coronary artery specimens from a subject who died from a heart attack were employed. The pathological analysis was analyzed by hematoxylin and eosin (H&E) staining, and the lncRNAs and mRNAs were identified by RNA sequencing.

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