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Sripa, Banchob; Seubwai, Wunchana; Vaeteewoottacharn, Kulthida; Sawanyawisuth, Kanlayanee; Silsirivanit, Atit; Kaewkong, Worasak; Muisuk, Kanha; Dana, Paweena; Phoomak, Chatchai; Lert-itthiporn, Worachart; Luvira, Vor; Pairojkul, Chawalit; Teh, Bin T.; Wongkham, Sopit; Okada, Seiji; Chamgramol, Yaovalux
Human cell : official journal of Human Cell Research Society, 07/2020, Volume: 33, Issue: 3Journal Article
Three cholangiocarcinoma (CCA) cell line—formerly named, M156, M213 and M214 have been intensively used with discrepancy of their tumor origins. They were assumed to be originated from three different donors without authentication. To verify the origins of these cell lines, the short tandem repeat (STR) analysis of the currently used cell lines, the cell stocks from the establisher and the primary tumor of a CCA patient were performed. Their phenotypic and genotypic originality were compared. The currently used 3 CCA cell lines exhibited similar STR as CCA patient ID-M213 indicating the same origin of these cells. The cell stocks from the establisher, however, revealed the same STR of M213 and M214 cells, but not M156. The misidentification of M214 and M156 is probably due to the mislabeling and cross-contamination of M213 cells during culture. These currently used cell lines were renamed as KKU-213A, -213B and -213C, for the formerly M213, M214 and M156 cells, respectively. These cell lines were established from a male with an intrahepatic mass-forming CCA stage-4B. The tumor was an adenosquamous carcinoma with the liver fluke ova granuloma in evidence. All cell lines had positive CK19 with differential CA19-9 expression. They exhibited aneuploidy karyotypes, distinct cell morphology, cell growth, cytogenetic characteristic and progressive phenotypes. KKU-213C formed a adenosquamous carcinoma, whereas KKU-213A and KKU-213B formed poorly- and well-differentiated squamous cell carcinomas in xenografted mice. mRNA microarray revealed different expression profiles among these three cell lines. The three cell lines have unique characteristics and may resemble the heterogeneity of tumor origin.
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