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  • Establishment and characterization of a new xenograft-derived human esophageal squamous cell line SLMT-1 of Chinese origin.

    Author(s)
    Tang, JCO
    Wan, TSK
    Wong, N
    Pang, E
    Lam, KY
    Law, SY
    Chow, LMC
    Ma, ESK
    Chan, LC
    Wong, J
    Srivastava, G
    Griffith University Author(s)
    Lam, Alfred K.
    Year published
    2001
    Metadata
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    Abstract
    A new human esophageal cancer cell line, named SLMT-1, was established from a nude-mouse xenograft of a well-differentiated esophageal squamous cell carcinoma (ESCC) of the lower esophagus from a male Hong Kong Chinese patient. SLMT-1, passaged over 34 times and with a doubling time of 31 hours, has the microscopic features of epithelial cells with adherent growth as a monolayer. The general biologic properties of SLMT-1 cells were characterized by (1) a positive test of tumorigenicity obtained by injecting cells subcutaneously into athymic nude mice and observing their development into well-differentiated squamous cell ...
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    A new human esophageal cancer cell line, named SLMT-1, was established from a nude-mouse xenograft of a well-differentiated esophageal squamous cell carcinoma (ESCC) of the lower esophagus from a male Hong Kong Chinese patient. SLMT-1, passaged over 34 times and with a doubling time of 31 hours, has the microscopic features of epithelial cells with adherent growth as a monolayer. The general biologic properties of SLMT-1 cells were characterized by (1) a positive test of tumorigenicity obtained by injecting cells subcutaneously into athymic nude mice and observing their development into well-differentiated squamous cell carcinoma; (2) immunohistochemical staining using antibodies (AE1/AE3, CAM5.2 and MAK 6) which show the presence of cytokeratin intermediate filaments; and (3) electron microscopy demonstrating the morphologic features of epithelial cells with the presence of desmosomes. The cytogenetic abnormalities found in both the primary culture and SLMT-1 included der(1;14)(q10;q10), add(1)(p1?), +1, +2, del(3)(q11), +6, +7, i(8)(q10), +8, +10, +11, −13, −15, +16, +17, −18, −19, −Y and marker chromosomes. Additional changes observed in the 34th passage included gains as well as losses of both numerical and structural abnormalities. Comparative genomic hybridization (CGH) indicated copy number gains on chromosomal regions 3q32–qter, 5p, 8p12–p11.2, 11q13–q22 and 13q22–qter, and loss of the Y. The gains of 8p12–p11.2 in SLMT-1 cells are novel to ESCC. Based on its distinct and common characteristics, the SLMT-1 cell line serves as a useful tool for studying the molecular and genetic basis of the pathogenesis of ESCC.
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    Journal Title
    Cancer Genetics & Cytogenetics
    Volume
    124
    Issue
    1
    DOI
    https://doi.org/10.1016/S0165-4608(00)00317-4
    Subject
    Oncology and carcinogenesis
    Publication URI
    http://hdl.handle.net/10072/57942
    Collection
    • Journal articles

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