{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,9,29]],"date-time":"2025-09-29T15:29:12Z","timestamp":1759159752515},"reference-count":30,"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":10171,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Journal Cellular Physiology"],"published-print":{"date-parts":[[1977,4]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>This paper presents evidence that a protein characteristic of differentiated liver cells, liver alkaline phosphatase, is synthesized by the Chang liver cell line. Liver alkaline phosphatase was demonstrated by immumochemical assay, <jats:sup>32<\/jats:sup>P\u2010labeling and polyacrylamide gel electrophoresis, immunofluorescence microscopy, and the fluorescence\u2010activated cell sorter. The synthesis of the liver enzyme by the Chang liver cells is interpreted to indicate fidelity of the Chang cells to their origin from human liver tissue. Chang liver cells also synthesize a phosphatase which is similar if not indentical to the placental alkaline phosphatase. Since a placental\u2010type alkaline phosphatase has been observed in a number of non\u2010trophoblastic cell lines and also in some neoplasms, it does not seem reliable as an index of the origins of the cell line. Because of the claims that Chang liver cells are actually HeLa cells, HeLa cells were studied in tandem with the Chang cells. The results showed that the HeLa cells do not make the liver type phosphatase. The data are discussed in relation to the question of HeLa cell contamination of the Chang cell line and the validity of criteria normally used to identify cell lines.<\/jats:p>","DOI":"10.1002\/jcp.1040910112","type":"journal-article","created":{"date-parts":[[2005,2,26]],"date-time":"2005-02-26T17:34:33Z","timestamp":1109439273000},"page":"119-129","source":"Crossref","is-referenced-by-count":13,"title":["Expression of liver and placental alkaline phosphatases in Chang liver cells"],"prefix":"10.1002","volume":"91","author":[{"given":"Marilyn A.","family":"Ludue\u00f1A","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"G. 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