Imperial College London


Faculty of MedicineInstitute of Clinical Sciences

Professor of Developmental Epigenetics



+44 (0)20 3313 8264petra.hajkova Website




4006CRB (Clinical Research Building)Hammersmith Campus





Epigenetic reprogramming encompasses changes in nuclear architecture and epigenetic modifications, eventually leading to a shift in gene expression profile. At the molecular level, such a process is connected with the erasure of epigenetic marks including DNA methylation and histone modifications. Our laboratory uses in vivo models to elucidate molecular mechanisms underlying naturally occurring reprogramming events. The knowledge gained allows us to design in vitro experimental systems and to use biochemical approaches to investigate further molecular details.

We study the reprogramming events both in the developing mouse germ line and in the mouse zygote. The former involves both genome-wide DNA demethylation and chromatin remodelling, whereas reprogramming the zygote involves genome-wide DNA demethylation affecting only the paternal genome a few hours after fertilisation.

As epigenetic reprogramming plays a pivotal role in the dedifferentiation and the reversal of cell fate decisions, investigation of molecular pathways underlying such processes provides direct mechanistic links to regeneration and cancer.



Dukatz M, Requena CE, Emperle M, et al., 2019, Mechanistic insights into Cytosine-N3 Methylation by DNA Methyltransferase DNMT3A., Journal of Molecular Biology, ISSN:0022-2836

Carrillo-Jimenez A, Deniz Ö, Niklison-Chirou MV, et al., 2019, TET2 regulates the neuroinflammatory response in microglia

Cvetesic N, Leitch HG, Borkowska M, et al., 2018, SLIC-CAGE: high-resolution transcription start site mapping using nanogram-levels of total RNA, Genome Research, Vol:28, ISSN:1088-9051, Pages:1943-1956

Wyck S, Herrera C, Requena CE, et al., 2018, Oxidative stress in sperm affects the epigenetic reprogramming in early embryonic development, Epigenetics & Chromatin, Vol:11, ISSN:1756-8935


Gillberg L, Orskov AD, Nasif A, et al., 2018, Oral Vitamin C Supplementation to Azacitidine in Patients with Myeloid Cancer: Normalization of Plasma Vitamin C Induces Epigenetic Changes, 60th Annual Meeting of the American-Society-of-Hematology (ASH), AMER SOC HEMATOLOGY, ISSN:0006-4971

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