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| Título: | Monocyte subtypes predict clinical course and prognosis in human stroke |
Autor: | Urra, Xabier CSIC ORCID; Amaro, Sergio; Gómez-Choco, Manuel; Obach, Víctor; Planas, Anna M. CSIC ORCID; Chamorro, Ángel | Palabras clave: | Monocyte subtypes Platelet–monocyte interactions Prognosis Stroke |
Fecha de publicación: | may-2009 | Editor: | Nature Publishing Group | Citación: | Journal of Cerebral Blood Flow and Metabolism 29(5): 994-1002 (2009) | Resumen: | The number of circulating monocytes increases after stroke. In this study, we assessed the time course and phenotype of monocyte subsets and their relationship with the clinical course and outcome in 46 consecutive stroke patients and 13 age-matched controls. The proportion of the most abundant ‘classical’ CD14highCD16− monocytes did not change after stroke, whereas that of CD14highCD16+ monocytes increased and CD14dimCD16+ monocytes decreased. CD14highCD16+ monocytes had the highest expression of TLR2, HLA-DR and the angiogenic marker, Tie-2; CD14dimCD16+ monocytes had the highest expression of costimulatory CD86 and adhesion molecule CD49d. Platelet–monocyte interactions were highest in CD14highCD16− monocytes and lowest in CD14dimCD16+ monocytes. In adjusted models, 1/CD14highCD16− monocytes were associated with poor outcome (OR: 1.38), higher mortality (OR: 1.40) and early clinical worsening (OR: 1.29); 2/CD14highCD16+ monocytes were inversely related to mortality (OR: 0.32); and 3/CD14dimCD16+ monocytes were inversely related to poor outcome (OR: 0.74) and infarction size (r=−0.45; P=0.02). These results illustrate that the predominant monocyte subtype conveys harmful effects after stroke, which include stronger interaction with platelets. Alternatively, rarer subpopulations of monocytes are beneficial with a phenotype that could promote tissue repair and angiogenesis. Therefore, monitoring of monocyte subtypes may emerge as a useful tool at the bedside for stroke patients. | Descripción: | et al. | Versión del editor: | http://dx.doi.org/10.1038/jcbfm.2009.25 | URI: | http://hdl.handle.net/10261/35239 | DOI: | 10.1038/jcbfm.2009.25 | ISSN: | 0271-678X | E-ISSN: | 1559-7016 |
| Aparece en las colecciones: | (IIBB) Artículos |
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