{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,11,2]],"date-time":"2025-11-02T09:31:17Z","timestamp":1762075877218},"reference-count":39,"publisher":"Wiley","issue":"1","license":[{"start":{"date-parts":[[2005,2,4]],"date-time":"2005-02-04T00:00:00Z","timestamp":1107475200000},"content-version":"vor","delay-in-days":5423,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Journal Cellular Physiology"],"published-print":{"date-parts":[[1990,4]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>A class of high\u2010affinity binding sites that preferentially bind heparin\/heparan sulfate have been identified on the external surfaces of mouse uterine epithelial cells cultured in vitro. [<jats:sup>3<\/jats:sup>H]Heparin binding to these surfaces was time\u2010dependent, saturable, and was blocked specifically by the inclusion of unlabeled heparin or endogenous heparan sulfate in the incubation medium. A variety of other glycosaminoglycans did not compete for these binding sites. The presence of sulfate on heparin influenced, but was not essential for, recognition of the polysaccharide by the cell surface binding sites. [<jats:sup>3<\/jats:sup>H]\u2010Heparin bound to the cell surface was displaceable by unlabeled heparin, but not chondroitin sulfate. Treatment of intact cells on ice with trypsin markedly reduced [<jats:sup>3<\/jats:sup>H]heparin binding, indicating that a large fraction of the surface binding sites were associated with proteins. Scatchard analyses revealed a class of externally disposed binding sites for heparin\/heparan sulfate exhibiting an apparent Kd of approximately 50 nM and present at a level of 1.3 \u00d7 10<jats:sup>6<\/jats:sup> sites per cell. Approximately 9\u201314% of the binding sites were detectable at the apical surface of cells cultured under polarized conditions in vitro. Detachment of cells from the substratum with EDTA stimulated [<jats:sup>3<\/jats:sup>H]heparin binding to cell surfaces. These observations suggested that most of the binding sites were basally distributed and were not primarily associated with the extracellular matrix. Collectively, these observations indicate that specific interactions with heparin\/heparan sulfate containing molecules can take place at both the apical and basal cell surfaces of uterine epithelial cells. This may have important consequences with regard to embryo\u2010uterine and epithelial\u2010basal lamina interactions.<\/jats:p>","DOI":"10.1002\/jcp.1041430108","type":"journal-article","created":{"date-parts":[[2005,2,26]],"date-time":"2005-02-26T09:58:24Z","timestamp":1109411904000},"page":"60-67","source":"Crossref","is-referenced-by-count":37,"title":["Expression of externally\u2010disposed heparin\/heparan sulfate binding sites by uterine epithelial cells"],"prefix":"10.1002","volume":"143","author":[{"given":"Oswald","family":"Wilson","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Andrew L.","family":"Jacobs","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Shelley","family":"Stewart","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Daniel D.","family":"Carson","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2005,2,4]]},"reference":[{"key":"e_1_2_1_2_1","doi-asserted-by":"publisher","DOI":"10.1002\/jcp.1041360119"},{"key":"e_1_2_1_3_1","doi-asserted-by":"publisher","DOI":"10.1083\/jcb.107.6.2425"},{"key":"e_1_2_1_4_1","doi-asserted-by":"publisher","DOI":"10.1002\/jcp.1041240104"},{"key":"e_1_2_1_5_1","doi-asserted-by":"publisher","DOI":"10.1016\/0968-0004(88)90088-6"},{"key":"e_1_2_1_6_1","doi-asserted-by":"publisher","DOI":"10.1083\/jcb.102.2.403"},{"key":"e_1_2_1_7_1","doi-asserted-by":"publisher","DOI":"10.1038\/320445a0"},{"key":"e_1_2_1_8_1","doi-asserted-by":"publisher","DOI":"10.1210\/endo-118-2-661"},{"key":"e_1_2_1_9_1","doi-asserted-by":"publisher","DOI":"10.1016\/0012-1606(87)90398-8"},{"key":"e_1_2_1_10_1","doi-asserted-by":"publisher","DOI":"10.1095\/biolreprod39.2.443"},{"key":"e_1_2_1_11_1","first-page":"335","volume-title":"Cell Biology of the Extracellular Matrix","author":"Farquhar M. 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