Isolation and identification of leukocyte populations in intracranial blood collected during mechanical thrombectomy

Autor: Benjamin C Shaw, Ann M. Stowe, Melissa Kesler, Jadwiga Turchan-Cholewo, Thomas A. Ujas, Chintan Rupareliya, G Benton Maglinger, Keith R. Pennypacker, Justin F. Fraser, Mathias Gelderblom, Stephen Grupke
Rok vydání: 2021
Předmět:
Zdroj: Journal of Cerebral Blood Flow & Metabolism
ISSN: 1559-7016
0271-678X
DOI: 10.1177/0271678x211028496
Popis: Using standard techniques during mechanical thrombectomy, the Blood and Clot Thrombectomy Registry and Collaboration (BACTRAC) protocol (NCT03153683) isolates intracranial arterial blood distal to the thrombus and proximal systemic blood in the carotid artery. We augmented the current protocol to study leukocyte subpopulations both distal and proximal to the thrombus during human stroke (n = 16 patients), and from patients with cerebrovascular disease (CVD) undergoing angiography for unrelated conditions (e.g. carotid artery stenosis; n = 12 patients). We isolated leukocytes for flow cytometry from small volume (+ T cells and classical dendritic cells were significantly lower than CVD controls and correlated to within-patient edema volume and last known normal. This novel protocol successfully isolates leukocytes from small volume intracranial blood samples of stroke patients at time of mechanical thrombectomy and can be used to confirm preclinical results, as well as identify novel targets for immunotherapies.
Databáze: OpenAIRE