Circulating microRNA Profiles for Premature Cardiovascular Death in Patients with Kidney Failure with Replacement Therapy

• Published in: Journal of clinical medicine 2023-07, Vol.12 (15), p.5010
• Main Authors: Kuscu, Canan, Mallisetty, Yamini, Naik, Surabhi, Han, Zhongji, Berta, Caleb J, Kuscu, Cem, Kovesdy, Csaba P, Sumida, Keiichi
• Format: Article
• Language: English
• Subjects: Biomarkers; Cardiovascular disease; Cardiovascular diseases; Care and treatment; Clinical medicine; Complications and side effects; Gene expression; Genomes; Health aspects; Heart failure; Hemodialysis; Identification and classification; Kidney failure; MicroRNA; MicroRNAs; Patients; Phosphatase; Plasma; Risk factors; Variables
• ISSN: 2077-0383; 2077-0383
• DOI: 10.3390/jcm12155010

Patients with kidney failure with replacement therapy (KFRT) suffer from a disproportionately high cardiovascular disease burden. Circulating small non-coding RNAs (c-sncRNAs) have emerged as novel epigenetic regulators and are suggested as novel biomarkers and therapeutic targets for cardiovascular disease; however, little is known about the associations of c-sncRNAs with premature cardiovascular death in KFRT. In a pilot case-control study of 50 hemodialysis patients who died of cardiovascular events as cases, and 50 matched hemodialysis controls who remained alive during a median follow-up of 2.0 years, we performed c-sncRNAs profiles using next-generation sequencing to identify differentially expressed circulating microRNAs (c-miRNAs) between the plasma of cases and that of controls. mRNA target prediction and pathway enrichment analysis were performed to examine the functional relevance of differentially expressed c-miRNAs to cardiovascular pathophysiology. The association of differentially expressed c-miRNAs with cardiovascular mortality was examined using multivariable conditional logistic regression. The patient characteristics were similar between cases and controls, with a mean age of 63 years, 48% male, and 54% African American in both groups. We detected a total of 613 miRNAs in the plasma, among which five miRNAs (i.e., miR-129-1-5p, miR-500b-3p, miR-125b-1-3p, miR-3648-2-5p, and miR-3150b-3p) were identified to be differentially expressed between cases and controls with cut-offs of < 0.05 and log2 fold-change (log2FC) > 1. When using more stringent cut-offs of -adjusted < 0.05 and log2FC > 1, only miR-129-1-5p remained significantly differentially expressed, with higher levels of miR-129-1-5p in the cases than in the controls. The pathway enrichment analysis using predicted miR-129-1-5p mRNA targets demonstrated enrichment in adrenergic signaling in cardiomyocytes, arrhythmogenic right ventricular cardiomyopathy, and oxytocin signaling pathways. In parallel, the circulating miR-129-1-5p levels were significantly associated with the risk of cardiovascular death (adjusted OR [95% CI], 1.68 [1.01-2.81] for one increase in log-transformed miR-129-1-5p counts), independent of potential confounders. Circulating miR-129-1-5p may serve as a novel biomarker for premature cardiovascular death in KFRT.