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Single-cell RNA-seq reveals transcriptomic heterogeneity mediated by host-pathogen dynamics in lymphoblastoid cell lines

Authors
  • SoRelle, Elliott D.
  • Dai, Joanne
  • Bonglack, Emmanuela N.
  • Heckenberg, Emma M.
  • Zhou, Jeffrey Y.
  • Giamberardino, Stephanie N.
  • Bailey, Jeffrey A.
  • Gregory, Simon G.
  • Chan, Cliburn
  • Luftig, Micah A.
Publication Date
Jan 27, 2021
Source
[email protected]
Keywords
License
Green
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Abstract

Lymphoblastoid cell lines (LCLs) are generated by transforming primary B cells with Epstein-Barr virus (EBV) and are used extensively as model systems in viral oncology, immunology, and human genetics research. In this study, we characterized single-cell transcriptomic profiles of five LCLs and present a simple discrete-time simulation to explore the influence of stochasticity on LCL clonal evolution. Single-cell RNA sequencing (scRNA-seq) revealed substantial phenotypic heterogeneity within and across LCLs with respect to immunoglobulin isotype; virus-modulated host pathways involved in survival, activation, and differentiation; viral replication state; and oxidative stress. This heterogeneity is likely attributable to intrinsic variance in primary B cells and host-pathogen dynamics. Stochastic simulations demonstrate that initial primary cell heterogeneity, random sampling, time in culture, and even mild differences in phenotype-specific fitness can contribute substantially to dynamic diversity in populations of nominally clonal cells.

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