In this episode of the Epigenetics Podcast, we caught up with Jan Żylicz from the Novo Nordisk Foundation Center for Stem Cell Medicine to talk about his work on epigenetic and metabolic regulation of early development.

The focus of the Żylicz Lab is studying early development and how this process is influenced by epigenetic factors. In more detail, the Team focuses on the function of chromatin modifiers in this process. Primed pluripotent epiblasts in vivo show a distinct chromatin landscape that is characterized by high levels of histone H3 lysine 9 dimethylation (H3K9me2) and rearranged Polycomb-associated histone H3 lysine 27 trimethylation (H3K27me3) at thousands of genes along the genome. However, the function of only about 100 loci is impaired. The Żylicz Lab tries to understand this process behind and also the cause of this discrepancy.

 

References

  • Żylicz, J. J., Bousard, A., Žumer, K., Dossin, F., Mohammad, E., da Rocha, S. T., Schwalb, B., Syx, L., Dingli, F., Loew, D., Cramer, P., & Heard, E. (2019). The Implication of Early Chromatin Changes in X Chromosome Inactivation. Cell, 176(1–2), 182-197.e23. https://doi.org/10.1016/j.cell.2018.11.041

  • Dossin, F., Pinheiro, I., Żylicz, J. J., Roensch, J., Collombet, S., Le Saux, A., Chelmicki, T., Attia, M., Kapoor, V., Zhan, Y., Dingli, F., Loew, D., Mercher, T., Dekker, J., & Heard, E. (2020). SPEN integrates transcriptional and epigenetic control of X-inactivation. Nature, 578(7795), 455–460. https://doi.org/10.1038/s41586-020-1974-9

     

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