{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,1]],"date-time":"2026-02-01T09:11:10Z","timestamp":1769937070679,"version":"3.49.0"},"reference-count":39,"publisher":"Journal of Neurosurgery Publishing Group (JNSPG)","issue":"2","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["JNS"],"published-print":{"date-parts":[[2014,2]]},"abstract":"<jats:sec>\n<jats:title>Object<\/jats:title>\n<jats:p>Moyamoya disease (MMD) is a cerebrovascular occlusive disease affecting bilateral internal carotid termini. Smooth-muscle cells are one of the major cell types involved in this disease process. The characteristics of circulating smooth-muscle progenitor cells (SPCs) in MMD are poorly understood. The authors purified SPCs from the peripheral blood of patients with MMD and sought to identify differentially expressed genes (DEGs) in SPCs from these patients.<\/jats:p><\/jats:sec>\n<jats:sec>\n<jats:title>Methods<\/jats:title>\n<jats:p>The authors cultured and isolated SPCs from the peripheral blood of patients with MMD (n = 25) and healthy control volunteers (n = 22). After confirmation of the cellular phenotype, RNA was extracted from the cells and DEGs were identified using a commercially available gene chip. Real-time quantitative reverse transcription polymerase chain reaction was performed to confirm the putative pathogenetic DEGs.<\/jats:p><\/jats:sec>\n<jats:sec>\n<jats:title>Results<\/jats:title>\n<jats:p>The SPC-type outgrowth cells in patients with MMD invariably showed a hill-and-valley appearance under microscopic examination, and demonstrated high \u03b1\u2013smooth muscle actin, myosin heavy chain, and calponin expression (96.5% \u00b1 2.1%, 42.8% \u00b1 18.6%, and 87.1% \u00b1 8.2%, respectively), and minimal CD31 expression (less than 1%) on fluorescence-activated cell sorter analysis. The SPCs in the MMD group tended to make more irregularly arranged and thickened tubules on the tube formation assay. In the SPCs from patients with MMD, 286 genes (124 upregulated and 162 downregulated) were differentially expressed; they were related to cell adhesion, cell migration, immune response, and vascular development.<\/jats:p><\/jats:sec>\n<jats:sec>\n<jats:title>Conclusions<\/jats:title>\n<jats:p>With adequate culture conditions, SPCs could be established from the peripheral blood of patients with MMD. These cells showed specific DEGs compared with healthy control volunteers. This study provides a novel experimental cell model for further research of MMD.<\/jats:p><\/jats:sec>","DOI":"10.3171\/2013.9.jns131000","type":"journal-article","created":{"date-parts":[[2013,10,25]],"date-time":"2013-10-25T14:27:00Z","timestamp":1382711220000},"page":"415-425","source":"Crossref","is-referenced-by-count":42,"title":["Smooth-muscle progenitor cells isolated from patients with moyamoya disease: novel experimental cell model"],"prefix":"10.3171","volume":"120","author":[{"given":"Hyun-Seung","family":"Kang","sequence":"first","affiliation":[{"name":"Department of Neurosurgery, Seoul National University College of Medicine, Seoul National University Hospital, Seoul;"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Youn-Joo","family":"Moon","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, Seoul National University College of Medicine, Seoul National University Hospital, Seoul;"},{"name":"Division of Pediatric Neurosurgery, Seoul 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