{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,28]],"date-time":"2026-10-28T22:40:08Z","timestamp":1793227208750,"version":"4.5.0"},"reference-count":25,"publisher":"Canadian Science Publishing","issue":"12","license":[{"start":{"date-parts":[[2006,12,1]],"date-time":"2006-12-01T00:00:00Z","timestamp":1164931200000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/www.nrcresearchpress.com\/page\/about\/CorporateTextAndDataMining"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Can. J. Physiol. Pharmacol."],"published-print":{"date-parts":[[2006,12]]},"abstract":"<jats:p>Breast cancer resistance protein, BCRP, is a multidrug resistance protein that is highly expressed in the human placenta. In cancer tissues, this protein actively extrudes a wide variety of chemically and structurally unrelated chemotherapeutic drugs and other compounds. Studies in mice have shown that in the absence of BCRP activity in the placenta, there is a 2-fold increase in the uptake in BCRP substrates into fetus. This suggests that in the placenta, BCRP extrudes compounds that would otherwise cross the syncytiotrophoblast cells into fetal circulation. The purpose of this study was to examine the expression and localization of BCRP in the human placenta throughout gestation. Tissues from 6\u201313, 16\u201319, 24\u201329, 32\u201335, and 38\u201341\u00a0weeks of gestation were used. Real time RT-PCR analysis demonstrated that the mRNA levels of BCRP in the placenta do not change significantly as gestation progressed. However, Western blot analysis revealed that the protein levels increased towards the end of gestation. We demonstrated that BCRP is localized to the syncytiotrophoblast of the placenta and in some fetal blood vessels within the placenta. Tissues from the early stages of pregnancy (6\u201313\u00a0weeks) showed fewer BCRP positive blood vessels than term tissues (38\u201341 weeks).<\/jats:p>","DOI":"10.1139\/y06-078","type":"journal-article","created":{"date-parts":[[2007,5,8]],"date-time":"2007-05-08T15:56:54Z","timestamp":1178639814000},"page":"1251-1258","source":"Crossref","is-referenced-by-count":106,"title":["Expression of breast cancer resistance protein (BCRP\/ABCG2) in human placenta throughout gestation and at term before and after labor"],"prefix":"10.1139","volume":"84","author":[{"given":"D.","family":"Yeboah","sequence":"first","affiliation":[{"name":"Department of Obstetrics and Gynecology and Cellular and Molecular Medicine, University of Ottawa, 451 Smyth Rd, Ottawa, ON K1H 8M5, Canada."},{"name":"Department of Obstetrics and Gynecology, University of Toronto, Toronto, ON M5G 1X5, Canada."},{"name":"Department of Physiology, University of Toronto, Toronto, ON M5G 1X5, Canada."},{"name":"Samuel Lunenfeld, Research Institute, Mt. Sinai Hospital, Toronto, ON M5G 1X5, Canada."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"M.","family":"Sun","sequence":"additional","affiliation":[{"name":"Department of Obstetrics and Gynecology and Cellular and Molecular Medicine, University of Ottawa, 451 Smyth Rd, Ottawa, ON K1H 8M5, Canada."},{"name":"Department of Obstetrics and Gynecology, University of Toronto, Toronto, ON M5G 1X5, Canada."},{"name":"Department of Physiology, University of Toronto, Toronto, ON M5G 1X5, Canada."},{"name":"Samuel Lunenfeld, Research Institute, Mt. Sinai Hospital, Toronto, ON M5G 1X5, Canada."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"J.","family":"Kingdom","sequence":"additional","affiliation":[{"name":"Department of Obstetrics and Gynecology and Cellular and Molecular Medicine, University of Ottawa, 451 Smyth Rd, Ottawa, ON K1H 8M5, Canada."},{"name":"Department of Obstetrics and Gynecology, University of Toronto, Toronto, ON M5G 1X5, Canada."},{"name":"Department of Physiology, University of Toronto, Toronto, ON M5G 1X5, Canada."},{"name":"Samuel Lunenfeld, Research Institute, Mt. Sinai Hospital, Toronto, ON M5G 1X5, Canada."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"D.","family":"Baczyk","sequence":"additional","affiliation":[{"name":"Department of Obstetrics and Gynecology and Cellular and Molecular Medicine, University of Ottawa, 451 Smyth Rd, Ottawa, ON K1H 8M5, Canada."},{"name":"Department of Obstetrics and Gynecology, University of Toronto, Toronto, ON M5G 1X5, Canada."},{"name":"Department of Physiology, University of Toronto, Toronto, ON M5G 1X5, Canada."},{"name":"Samuel Lunenfeld, Research Institute, Mt. Sinai Hospital, Toronto, ON M5G 1X5, Canada."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"S.J.","family":"Lye","sequence":"additional","affiliation":[{"name":"Department of Obstetrics and Gynecology and Cellular and Molecular Medicine, University of Ottawa, 451 Smyth Rd, Ottawa, ON K1H 8M5, Canada."},{"name":"Department of Obstetrics and Gynecology, University of Toronto, Toronto, ON M5G 1X5, Canada."},{"name":"Department of Physiology, University of Toronto, Toronto, ON M5G 1X5, Canada."},{"name":"Samuel Lunenfeld, Research Institute, Mt. Sinai Hospital, Toronto, ON M5G 1X5, Canada."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"S.G.","family":"Matthews","sequence":"additional","affiliation":[{"name":"Department of Obstetrics and Gynecology and Cellular and Molecular Medicine, University of Ottawa, 451 Smyth Rd, Ottawa, ON K1H 8M5, Canada."},{"name":"Department of Obstetrics and Gynecology, University of Toronto, Toronto, ON M5G 1X5, Canada."},{"name":"Department of Physiology, University of Toronto, Toronto, ON M5G 1X5, Canada."},{"name":"Samuel Lunenfeld, Research Institute, Mt. Sinai Hospital, Toronto, ON M5G 1X5, Canada."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"W.","family":"Gibb","sequence":"additional","affiliation":[{"name":"Department of Obstetrics and Gynecology and Cellular and Molecular Medicine, University of Ottawa, 451 Smyth Rd, Ottawa, ON K1H 8M5, Canada."},{"name":"Department of Obstetrics and Gynecology, University of Toronto, Toronto, ON M5G 1X5, Canada."},{"name":"Department of Physiology, University of Toronto, Toronto, ON M5G 1X5, Canada."},{"name":"Samuel Lunenfeld, Research Institute, Mt. Sinai Hospital, Toronto, ON M5G 1X5, Canada."}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"155","reference":[{"key":"atypb1\/ref1","first-page":"427","volume":"1","author":"Allen J.D.","year":"2002","journal-title":"Mol. Cancer Ther."},{"key":"atypb2\/ref2","doi-asserted-by":"publisher","DOI":"10.1101\/gr.GR-1649R"},{"key":"atypb3\/ref3","doi-asserted-by":"publisher","DOI":"10.1002\/path.1203"},{"key":"atypb4\/ref4","doi-asserted-by":"publisher","DOI":"10.1073\/pnas.95.26.15665"},{"key":"atypb5\/ref5","doi-asserted-by":"publisher","DOI":"10.1158\/0008-5472.CAN-03-3583"},{"key":"atypb6\/ref6","doi-asserted-by":"crossref","first-page":"R1357","DOI":"10.1152\/ajpregu.00630.2005","volume":"290","author":"Evseenko D.A.","year":"2006","journal-title":"Am. J. Physiol. Regul. Integr. Comp. Physiol."},{"key":"atypb7\/ref7","doi-asserted-by":"crossref","first-page":"696","DOI":"10.4161\/cbt.322","volume":"1","author":"Honjo Y.","year":"2002","journal-title":"Cancer Biol. Ther."},{"key":"atypb8\/ref8","doi-asserted-by":"publisher","DOI":"10.1074\/jbc.M401725200"},{"key":"atypb9\/ref9","doi-asserted-by":"crossref","first-page":"596","DOI":"10.1158\/0008-5472.CAN-05-1894","volume":"65","author":"Imai Y.","year":"2005","journal-title":"Cancer Res."},{"key":"atypb10\/ref10","doi-asserted-by":"publisher","DOI":"10.1074\/jbc.M301358200"},{"key":"atypb11\/ref11","doi-asserted-by":"publisher","DOI":"10.1093\/jnci\/92.20.1651"},{"key":"atypb12\/ref12","doi-asserted-by":"publisher","DOI":"10.1002\/ijc.10100"},{"key":"atypb13\/ref13","doi-asserted-by":"publisher","DOI":"10.1074\/jbc.M313599200"},{"key":"atypb14\/ref14","doi-asserted-by":"crossref","first-page":"6","DOI":"10.1016\/S0005-2736(02)00492-3","volume":"1565","author":"Litman T.","year":"2002","journal-title":"Biochim. Biophys. Acta,"},{"key":"atypb15\/ref15","doi-asserted-by":"crossref","first-page":"213","DOI":"10.1016\/j.jsgi.2003.12.003","volume":"11","author":"Madsen G.","year":"2004","journal-title":"J. Soc. Gynecol. Investig."},{"key":"atypb16\/ref16","first-page":"3458","volume":"61","author":"Maliepaard M.","year":"2001","journal-title":"Cancer Res."},{"key":"atypb17\/ref17","doi-asserted-by":"crossref","first-page":"R963","DOI":"10.1152\/ajpregu.00173.2005","volume":"289","author":"Mathias A.A.","year":"2005","journal-title":"Am. J. Physiol. Regul. Integr. Comp. Physiol."},{"key":"atypb18\/ref18","doi-asserted-by":"crossref","first-page":"365","DOI":"10.1182\/blood.V96.1.365","volume":"96","author":"Ross D.D.","year":"2000","journal-title":"Blood"},{"key":"atypb19\/ref19","doi-asserted-by":"publisher","DOI":"10.1016\/j.febslet.2004.03.123"},{"key":"atypb20\/ref20","doi-asserted-by":"crossref","first-page":"1513","DOI":"10.1016\/S0022-2275(20)32205-7","volume":"42","author":"Schmitz G.","year":"2001","journal-title":"J. Lipid Res."},{"key":"atypb21\/ref21","doi-asserted-by":"publisher","DOI":"10.1016\/j.biocel.2004.11.004"},{"key":"atypb22\/ref22","doi-asserted-by":"publisher","DOI":"10.1016\/j.placenta.2005.05.007"},{"key":"atypb23\/ref23","first-page":"5035","volume":"62","author":"Volk E.L.","year":"2002","journal-title":"Cancer Res."},{"key":"atypb24\/ref100","doi-asserted-by":"publisher","DOI":"10.1152\/ajpendo.00397.2005"},{"key":"atypb25\/ref25","doi-asserted-by":"publisher","DOI":"10.1016\/S0169-409X(02)00174-6"}],"container-title":["Canadian Journal of Physiology and Pharmacology"],"original-title":[],"language":"en","link":[{"URL":"http:\/\/www.nrcresearchpress.com\/doi\/full-xml\/10.1139\/y06-078","content-type":"application\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"http:\/\/www.nrcresearchpress.com\/doi\/pdf\/10.1139\/y06-078","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2021,8,13]],"date-time":"2021-08-13T06:06:32Z","timestamp":1628834792000},"score":1,"resource":{"primary":{"URL":"http:\/\/www.nrcresearchpress.com\/doi\/10.1139\/y06-078"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2006,12]]},"references-count":25,"journal-issue":{"issue":"12","published-print":{"date-parts":[[2006,12]]}},"alternative-id":["10.1139\/y06-078"],"URL":"https:\/\/doi.org\/10.1139\/y06-078","relation":{},"ISSN":["0008-4212","1205-7541"],"issn-type":[{"value":"0008-4212","type":"print"},{"value":"1205-7541","type":"electronic"}],"subject":[],"published":{"date-parts":[[2006,12]]}}}