Cyclophilins in Ischemic Heart Disease: Differences Between Acute and Chronic Coronary Artery Disease Patients

Jeremias Bayon, Amparo Alfonso, Sandra Gegunde, Eva Alonso, Rebeca Alvarino, Melisa Santas-Alvarez, Ana Testa-Fernandez, Ramon Rios-Vazquez, Luis Botana, Carlos Gonzalez-Juanatey

Abstract


Background: Cyclophilins (Cyps) are a family of peptidyl-prolyl cis/trans isomerases consistently involved in cardiovascular diseases through the inflammation pathway. This study aims to investigate the serum levels of Cyps (CypA, CypB, CypC and CypD) in patients with coronary artery disease (CAD) and the correlation with clinical characteristics and inflammation parameters.

Methods: We developed an observational prospective study with a total of 125 subjects: 40 patients with acute CAD, 40 patients with chronic CAD and 45 control volunteers, in whom serum levels of Cyps (CypA, CypB, CypC and CypD), interleukins and metalloproteinases were measured.

Results: CypA levels increased significantly in CAD patients compared with control subjects, but no differences were noted between acute CAD (7.80 ± 1.30 ng/mL) and chronic CAD (5.52 ± 0.76 ng/mL) patients (P = 0.13). No differences in CypB and CypD levels were showed between CAD patients and controls and between acute CAD and chronic CAD patients. In relation with CypC, the levels in CAD patients were significantly higher compared to controls (32.42 ± 3.71 pg/mL vs. 9.38 ± 1.51 pg/mL, P < 0.001), but no differences between acute and chronic CAD groups were obtained (P = 0.62). We analyzed the CypC > 17.5 pg/mL cut-off point, and it was significantly associated with older age, hypertension, dyslipidemia and more extensive CAD in acute and chronic CAD groups.

Conclusions: CypA and CypC levels are increased in CAD patients. High CypC serum levels could be a novel biomarker in CAD patients correlating with a more severe disease.




Cardiol Res. 2020;11(5):319-327
doi: https://doi.org/10.14740/cr1120

Keywords


Cyclophilins; Inflammation; Ischemic heart disease; Cardiovascular risk factors

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