{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,6]],"date-time":"2026-10-06T04:37:43Z","timestamp":1791261463097,"version":"4.1.0"},"reference-count":32,"publisher":"Oxford University Press (OUP)","issue":"11","license":[{"start":{"date-parts":[[2014,8,8]],"date-time":"2014-08-08T00:00:00Z","timestamp":1407456000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/academic.oup.com\/journals\/pages\/open_access\/funder_policies\/chorus\/standard_publication_model"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2014,11,1]]},"abstract":"<jats:title>Abstract<\/jats:title>\n               <jats:p>Treatment with CD34+ hematopoietic stem\/progenitor cells has been shown to improve functional recovery in nonhuman models of ischemic stroke via promotion of angiogenesis and neurogenesis. We aimed to determine the safety and feasibility of treatment with CD34+ cells delivered intra-arterially in patients with acute ischemic stroke. This was the first study in human subjects. We performed a prospective, nonrandomized, open-label, phase I study of autologous, immunoselected CD34+ stem\/progenitor cell therapy in patients presenting within 7 days of onset with severe anterior circulation ischemic stroke (National Institutes of Health Stroke Scale [NIHSS] score \u22658). CD34+ cells were collected from the bone marrow of the subjects before being delivered by catheter angiography into the ipsilesional middle cerebral artery. Eighty-two patients with severe anterior circulation ischemic stroke were screened, of whom five proceeded to treatment. The common reasons for exclusion were age &amp;gt;80 years (n = 19); medical instability (n = 17), and significant carotid stenosis (n = 13). The procedure was well tolerated in all patients, and no significant treatment-related adverse effects occurred. All patients showed improvements in clinical functional scores (Modified Rankin Score and NIHSS score) and reductions in lesion volume during a 6-month follow-up period. Autologous CD34+ selected stem\/progenitor cell therapy delivered intra-arterially into the infarct territory can be achieved safely in patients with acute ischemic stroke. Future studies that address eligibility criteria, dosage, delivery site, and timing and that use surrogate imaging markers of outcome are desirable before larger scale clinical trials.<\/jats:p>","DOI":"10.5966\/sctm.2013-0178","type":"journal-article","created":{"date-parts":[[2014,8,9]],"date-time":"2014-08-09T01:51:35Z","timestamp":1407549095000},"page":"1322-1330","source":"Crossref","is-referenced-by-count":151,"title":["Intra-Arterial Immunoselected CD34+ Stem Cells for Acute Ischemic Stroke"],"prefix":"10.1093","volume":"3","author":[{"given":"Soma","family":"Banerjee","sequence":"first","affiliation":[{"name":"Department of Stroke Medicine, Imperial College Healthcare National Health Services Trust, London, United Kingdom"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Paul","family":"Bentley","sequence":"additional","affiliation":[{"name":"Clinical Neurosciences, Imperial College Healthcare National Health Services Trust, London, United 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