Yoshida Hitoshi

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Yoshida
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Hitoshi
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Subject: Embryo ×

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  • Article
    Developing immortal cell lines from Xenopus embryos, four novel cell lines derived from Xenopus tropicalis
    (The Royal Society, 2022-07-06) Gorbsky, Gary J. ; Daum, John R. ; Sapkota, Hem ; Summala, Katja ; Yoshida, Hitoshi ; Georgescu, Constantin ; Wren, Jonathan D. ; Peshkin, Leonid ; Horb, Marko E.
    The diploid anuran Xenopus tropicalis has emerged as a key research model in cell and developmental biology. To enhance the usefulness of this species, we developed methods for generating immortal cell lines from Nigerian strain (NXR_1018, RRID:SCR_013731) X. tropicalis embryos. We generated 14 cell lines that were propagated for several months. We selected four morphologically distinct lines, XTN-6, XTN-8, XTN-10 and XTN-12 for further characterization. Karyotype analysis revealed that three of the lines, XTN-8, XTN-10 and XTN-12 were primarily diploid. XTN-6 cultures showed a consistent mixed population of diploid cells, cells with chromosome 8 trisomy, and cells containing a tetraploid content of chromosomes. The lines were propagated using conventional culture methods as adherent cultures at 30°C in a simple, diluted L-15 medium containing fetal bovine serum without use of a high CO2 incubator. Transcriptome analysis indicated that the four lines were distinct lineages. These methods will be useful in the generation of cell lines from normal and mutant strains of X. tropicalis as well as other species of Xenopus.