{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,8,2]],"date-time":"2025-08-02T14:28:02Z","timestamp":1754144882688,"version":"3.41.2"},"reference-count":40,"publisher":"American Scientific Publishers","issue":"4","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["j biomed nanotechnol"],"published-print":{"date-parts":[[2022,4,1]]},"abstract":"<jats:p>Mesenchymal stem cells (MSCs) have demonstrated great potential for tissue engineering and regenerative medicine applications. Noninvasive and real-term tracking of transplanted MSCs <jats:italic>in vivo<\/jats:italic> is crucial for studying the distribution and migration of MSCs, and their role in tissue\n injury repair. This study reports on the use of ferrimagnetic vortex iron oxide (FVIO) nanorings modified with anti-human integrin <jats:italic>\u03b2<\/jats:italic>1 for specific recognition and magnetic resonance imaging (MRI) tracking of human MSCs (hMSCs). Integrin <jats:italic>\u03b2<\/jats:italic>1 is highly expressed at all\n stem cell proliferation and differentiation stages. Therefore, the anti-integrin <jats:italic>\u03b2<\/jats:italic>1 antibody (Ab) introduced in FVIO targets integrin <jats:italic>\u03b2<\/jats:italic>1, thus enabling FVIO to target stem cells at any stage. This is unlike the traditional MRI-based monitoring of transplanted stem cells,\n which usually requires pre-labeling the stem cells with tracers before injection. Because of the ability to recognize hMSCs, the Ab-modified FVIO nanotracers (FVIO-Ab) have the advantage of not requiring pre-labeling before stem cell transplantation. Furthermore, the FVIO-Ab nanotracers have\n high T<jats:sup>*<\/jats:sup><jats:sub>2<\/jats:sub> contrast resulting from the unique magnetic properties of FVIO which can improve the MRI tracking efficiency of stem cells. This work may provide a new way for stem cell labeling and <jats:italic>in vivo<\/jats:italic> MRI tracking, thus reducing the risks associated with stem cell\n transplantation and promoting clinical translation.<\/jats:p>","DOI":"10.1166\/jbn.2022.3319","type":"journal-article","created":{"date-parts":[[2022,7,20]],"date-time":"2022-07-20T00:42:42Z","timestamp":1658277762000},"page":"1044-1051","source":"Crossref","is-referenced-by-count":1,"title":["Ferromagnetic Vortex Iron Oxide Nanorings Modified with Integrin <i>\u03b2<\/i>1 Antibody for Targeted MRI Tracking of Human Mesenchymal Stem Cells"],"prefix":"10.1166","volume":"18","author":[{"given":"Yujie","family":"Wang","sequence":"first","affiliation":[{"name":"New Energy and Sensing Technology Lab, Department of Chemistry, College of Science, Shanghai University, Shanghai, 200444, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yinjuan","family":"Lv","sequence":"additional","affiliation":[{"name":"New Energy 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