{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,9,26]],"date-time":"2025-09-26T22:05:52Z","timestamp":1758924352542},"reference-count":46,"publisher":"Wiley","issue":"s4","license":[{"start":{"date-parts":[[2011,11,10]],"date-time":"2011-11-10T00:00:00Z","timestamp":1320883200000},"content-version":"vor","delay-in-days":9,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Transfusion"],"published-print":{"date-parts":[[2011,11]]},"abstract":"<jats:p><jats:bold>BACKGROUND:<\/jats:bold> Hematopoietic stem cell (HSC) transplantation is an essential element of medical therapy, leading to cures of previously incurable hematological and nonhematological diseases. Many patients do not find matched donors in a timely manner, which has driven efforts to find alternative pools of transplantable HSCs. The use of umbilical cord blood (UCB) as a source of transplantable HSCs began more than two decades ago. However, the use of UCB as a reliable source of HSCs for transplantation still faces crucial challenges: the number of HSCs present in a unit of UCB is usually sufficient for younger children but not for adults, and the persistent delayed engraftment often seen can result in high rates of infection and mortality.<\/jats:p><jats:p><jats:bold>STUDY DESIGN AND METHODS:<\/jats:bold> We propose a new approach to a solution of these problems: a potential increase of the limited number of UCB\u2010HSCs available by harvesting HSCs contained in the placenta and the fetal chorionic membrane available at birth.<\/jats:p><jats:p><jats:bold>RESULTS:<\/jats:bold> We investigated the presence of hematopoietic progenitors and HSCs in human placenta and chorion at different gestational ages. The characterization of these cells was performed by flow cytometry and immunolocalization, and their functional status was investigated by transplanting them into immunodeficient mice.<\/jats:p><jats:p><jats:bold>CONCLUSION:<\/jats:bold> HSCs are present in extraembryonic tissues and could be banked in conjunction to the UCB\u2010HSCs. This novel approach could have a large impact on the field of HSC banking and, more crucially, on the outcome of patients undergoing this treatment by greatly improving the use of life\u2010saving hematopoietic transplants.<\/jats:p>","DOI":"10.1111\/j.1537-2995.2011.03372.x","type":"journal-article","created":{"date-parts":[[2011,11,10]],"date-time":"2011-11-10T20:31:24Z","timestamp":1320957084000},"source":"Crossref","is-referenced-by-count":23,"title":["Human placenta and chorion: potential additional sources of hematopoietic stem cells for transplantation"],"prefix":"10.1111","volume":"51","author":[{"given":"Alicia","family":"B\u00e1rcena","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Marcus O.","family":"Muench","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Mirhan","family":"Kapidzic","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Matthew","family":"Gormley","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Gabriel A.","family":"Goldfien","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Susan J.","family":"Fisher","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2011,11,10]]},"reference":[{"key":"e_1_2_7_2_2","doi-asserted-by":"publisher","DOI":"10.1034\/j.1600-065X.2002.18514.x"},{"key":"e_1_2_7_3_2","doi-asserted-by":"publisher","DOI":"10.1111\/j.1651-2227.1978.tb16347.x"},{"key":"e_1_2_7_4_2","doi-asserted-by":"publisher","DOI":"10.1182\/blood.V89.11.3919"},{"key":"e_1_2_7_5_2","first-page":"313","article-title":"Umbilical cord blood hematopoietic stem and repopulating cells in human clinical transplantation","volume":"17","author":"Broxmeyer HE","year":"1991","journal-title":"Blood Cells"},{"key":"e_1_2_7_6_2","first-page":"591","article-title":"Cord blood banking for human hematopoietic cell transplantation","volume":"377","author":"Gluckman E","year":"1992","journal-title":"Prog Clin Biol Res"},{"key":"e_1_2_7_7_2","doi-asserted-by":"publisher","DOI":"10.1016\/S0140-6736(95)91268-1"},{"key":"e_1_2_7_8_2","doi-asserted-by":"publisher","DOI":"10.1097\/MOP.0b013e32832130bc"},{"key":"e_1_2_7_9_2","doi-asserted-by":"publisher","DOI":"10.1083\/jcb.109.2.891"},{"key":"e_1_2_7_10_2","doi-asserted-by":"publisher","DOI":"10.1177\/1933719108327621"},{"key":"e_1_2_7_11_2","doi-asserted-by":"crossref","first-page":"3401","DOI":"10.1182\/blood.V82.11.3401.3401","article-title":"Phenotypic and functional analysis of T\u2010cell precursors in the human fetal liver and thymus. 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