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Hematopoietic Progenitor Cells and Restenosis After Carotid Endarterectomy.
MedLine Citation:
PMID:  22511008     Owner:  NLM     Status:  Publisher    
BACKGROUND AND PURPOSE: Hematopoietic progenitor cells (HPCs) may attenuate the response to vascular injury by maintaining endothelial integrity and function. Our aim was to determine whether circulating HPC number and function correlate with restenosis after carotid endarterectomy. METHODS: HPC number (CD34(+)/CD133(+) cells), early colony-forming units, migratory capacity, and senescence were analyzed in blood collected preoperatively, 1 day, and 6 weeks postoperatively. Mobilizing cytokine levels were also measured. Stenosis was assessed by duplex scanning. RESULTS: HPC numbers (P<0.001) and early colony-forming unit count (P=0.001) fell rapidly 24 hours postoperatively. Restenosis at 6 months correlated negatively with the magnitude of postoperative falls in HPC numbers (R=-0.38, P=0.013) and early colony-forming unit counts (R=-0.42, P=0.008). The migratory capacity of preoperative HPCs correlated negatively with restenosis (R=-0.48, P=0.007). Preoperative SDF1 levels correlated with falls in HPC number (R=0.42, P=0.044) and early colony-forming unit counts (R=0.56, P=0.004). CONCLUSIONS: HPC function appears to be linked to the development of carotid artery restenosis after endarterectomy. These data support the concept that HPCs have a role in regulating remodeling of the injured arterial wall.
Sanjay D Patel; Julia Humphries; Katherine Mattock; Ashar Wadoodi; Bijan Modarai; Anwar Ahmad; Kevin G Burnand; Matthew Waltham; Alberto Smith
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-4-17
Journal Detail:
Title:  Stroke; a journal of cerebral circulation     Volume:  -     ISSN:  1524-4628     ISO Abbreviation:  -     Publication Date:  2012 Apr 
Date Detail:
Created Date:  2012-4-18     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0235266     Medline TA:  Stroke     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
From Kings College London, BHF Centre of Research Excellence & NIHR Biomedical Research Centre at Kings Health Partners, Academic Department of Surgery, Cardiovascular Division, St Thomas' Hospital, London, UK.
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