Thromb Haemost 2012; 108(04): 605-615
DOI: 10.1160/TH12-03-0153
Theme Issue Article
Schattauer GmbH

Alteration of the platelet transcriptome in chronic kidney disease

Hélène Plé
1   CHUQ Research Center/CHUL, Quebec, Quebec, Canada
2   Faculty of Medicine, Université Laval, Quebec, Quebec, Canada
,
Manon Maltais
3   Centre de Recherche de l'Hôpital du Sacré-Coeur de Montréal, and Faculty of Medicine, Université de Montréal, Montreal, Quebec, Canada
,
Aurélie Corduan
1   CHUQ Research Center/CHUL, Quebec, Quebec, Canada
2   Faculty of Medicine, Université Laval, Quebec, Quebec, Canada
,
Guy Rousseau
3   Centre de Recherche de l'Hôpital du Sacré-Coeur de Montréal, and Faculty of Medicine, Université de Montréal, Montreal, Quebec, Canada
,
François Madore
3   Centre de Recherche de l'Hôpital du Sacré-Coeur de Montréal, and Faculty of Medicine, Université de Montréal, Montreal, Quebec, Canada
,
Patrick Provost
1   CHUQ Research Center/CHUL, Quebec, Quebec, Canada
2   Faculty of Medicine, Université Laval, Quebec, Quebec, Canada
› Author Affiliations

Financial support: This work was supported by Catalyst Grant: Pilot Projects in Aging No. IAP-99000 from the Canadian Institutes of Health Research (to P. P. and F.M.).
Further Information

Publication History

Received: 09 March 2012

Accepted after minor revision: 12 June 2012

Publication Date:
29 November 2017 (online)

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Summary

Bleeding and thrombotic disorders are major complications affecting patients with chronic kidney disease (CKD). Exposure of circulating platelets to uraemic toxins and contact with artificial surfaces during dialysis induce platelet abnormalities and alter the platelet proteome. We hypothesised that these changes may be subsequent to changes in the composition and/or regulation of the platelet transcriptome. In this study, we investigated the circulating platelets of 10 CKD patients (i.e. five chronic haemodialysis patients and five stage 4 CKD uraemic patients) and five age- and sex-matched healthy subjects. We observed an alteration of the platelet messenger RNA (mRNA) and microRNA transcriptome in CKD patients. Impaired in uraemic platelets, the levels of some mRNAs and of most microRNAs appeared to be corrected by dialysis, which is consistent with a beneficial effect of dialysis and a mRNA regulatory role of platelet microRNAs. Reduced in platelets of uraemic patients, phosphatidylcholine transfer protein (PCTP) and WD repeat-containing protein 1 (WDR1) were found to be regulated by microRNAs, the latter of which involving hsa-miR-19b, a microRNA increased in platelets of uraemic patients and involved in platelet reactivity. These results suggest that an alteration of microRNA-based mRNA regulatory mechanisms may underlie the platelet response to uremia and entail the development of platelet-related complications in CKD.