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Genomic instability of Jurkat clone E6-1 T-cell lines affect gene expression and function: implications for T-cell researchers

ABSTRACT: Jurkat clone E6-1 is a human T-cell line derived from a paediatric case of acute leukaemia, and is frequently employed as a model T-cell for immunology research. In this study, we characterised genomic, transcriptomic, and functional features of Jurkat clone E6-1 cells stored in three different laboratories, and compared these to Jurkat E6-1 cells from the ATCC. Jurkat clone E6-1 populations were first karyotyped, which results showing marked cytogenomic heterogeneity between cell line. These results were confirmed through chromosomal microarray analysis. Whole exome sequencing was then conducted on each cell line, and revealed distinct mutational profiles between populations. Mutational differences between Jurkat clone E6-1 populations detected by cytogenomic approaches and whole exome sequencing led to divergent transcriptomic profiles identified by bulk RNA sequencing, which, in turn, impacted cellular phenotype and function shown by flow cytometry and multiplex cytokine bead array data. Overall, we found substantial genomic heterogeneity between and within Jurkat clone E6-1 cells, resulting in significant differences in gene expression and function. This research highlights the extreme genomic instability of Jurkat clone E6-1 cells, the importance of monitoring cell passage number and procuring fresh cell line stocks, and the value of multi-omic approaches to characterise cell lines to improve the accuracy, reproducibility, and translatability of research.

ORGANISM(S): Homo sapiens

PROVIDER: GSE263543 | GEO | 2025/04/08

REPOSITORIES: GEO

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Genomic instability of Jurkat clone E6-1 T-cell lines affect gene expression and function: implications for T-cell researchers

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