Personal profile
My research in a nutshell
We investigate the dynamics of epigenetic DNA methylation and histone modifications essential for early development, cell lineage differentiation, and cell fate reprogramming during the life course. These marks create an epigenetic ‘landscape’ that supports cell type specific gene regulatory networks but can also provide an epigenetic readout of disease, environmental exposure, and ageing. We study these epigenetic mechanisms in tissue specification, including cardiovascular development, the developmental origins of disease, and the effects of metabolism and environmental pollution. Our research interests centre on chromatin-mediated gene repression mechanisms and chromatin remodelling in gene activation in the cell nucleus of mammalian and vertebrate embryos and organ tissues, stem cells, reprogrammed cells and yeast-based models. Our research employs a range of molecular and cell biology techniques, advanced microscopy imaging and bioinformatics. We have discovered that heterochromatin matures late in development but is induced early in mouse embryonic stem cells; and that epigenetic marks can rapidly adapt to cell culture environment.
Teaching
Centre for Cardiovascular Science - Postgraduate Director
MScR in Biomedical Sciences (Life Sciences) - Course Module Organiser
Elected member of Senate
Keywords
- Q Science (General)
- Epigenetics
- Chromatin
- Development
- Cardiovascular
- Stem Cells
- Cell Reprogramming
- Histone Modification
- DNA Methylation
- Environmental Exposure
- Cell Metabolism
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- 1 Similar Profiles
Collaborations and top research areas from the last five years
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Source-dependent temporal toxicity and transcriptomic remodeling by urban ultrafine particles: Megacity - suburban comparison in aging olfactory-brain interface
Fayad, C., Mussalo, L., Afonin, A., Lampinen, R., Hakkarainen, H., Hensel, A.-K., Yahfouf, K., Behzadpour, D., Penttilä, E., Koivisto, A. M., Cascione, L., Pennings, S., Mikkonen, S., Jalava, P. & Kanninen, K. M., Mar 2026, In: Science of the Total Environment. 1026, 19 p., 181661.Research output: Contribution to journal › Article › peer-review
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Polycomb Repressive Complexes 1 and 2 are recruited independently to pericentromeric heterochromatin in response to hypomethylation in mouse embryonic stem cells
Dimova-Vasileva, S., Stepanova, O., Hay, D., Pickup, K. E., Gautier, P., Murphy, L. C., Kumar, Y., Adams, I. R., Pennings, S. & Meehan, R. R., 14 Nov 2025, bioRxiv, 54 p.Research output: Working paper › Preprint
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Integration of in vivo stress reporters with transcription profiling to define chemical mixtures mechanisms of toxicity, including trans-generational effects
Inesta-Vaquera, F., Qi, W., Dimova-Vasileva, S., Campbell, G. J., Ferro, F., Meehan, R., Pennings, S. & Wolf, C. R., 1 Nov 2025, In: Chemico-Biological Interactions: A journal of molecular, cellular and biochemical toxicology. 421, 111699.Research output: Contribution to journal › Article › peer-review
Open AccessFile -
Rett syndrome: Interferon-γ to the rescue?
Meehan, R. & Pennings, S., 9 Dec 2024, In: EMBO Molecular Medicine. 16, p. 3030-3032Research output: Contribution to journal › Comment/debate › peer-review
Open AccessFile -
Activation of transcription factor circuity in 2i-induced ground state pluripotency is independent of repressive global epigenetic landscapes
Shukla, R., Mjoseng, H. K., Thomson, J., Kling, S., Sproul, D., Dunican, D., Ramsahoye, B., Wongtawan, T., Treindl, F., Templin, M. F., Adams, I., Pennings, S. & Meehan, R., 20 Aug 2020, In: Nucleic Acids Research.Research output: Contribution to journal › Article › peer-review
Open AccessFile
Activities
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2025 UKHSA Annual Outdoor and Indoor Air PollutionResearch Review Meeting
Pennings, S. (Presenter)
11 Nov 2026Activity: Participating in or organising an event types › Participation in conference
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Edinburgh Chromatin, Epigenetics and Transcriptional Regulation Network
Vernimmen, D. (Organiser), Pennings, S. (Organiser), Lan, L. (Speaker), Sproul, D. (Speaker), Long, H. (Speaker) & Unlu Bektas, F. (Speaker)
11 Mar 2026Activity: Participating in or organising an event types › Participation in workshop, seminar, course
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S10 'Pharmaco-Epigenomics and Epigenetic Therapeutic Approaches’
Pennings, S. (Chair)
16 Dec 2025 → 18 Dec 2025Activity: Academic talk or presentation types › Invited talk
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Edinburgh Chromatin, Epigenetics and Transcriptional Regulation Network
Vernimmen, D. (Organiser), Pennings, S. (Organiser), Muir, K. (Speaker), Qi, W. (Speaker) & Ji, Q. (Speaker)
12 Nov 2025Activity: Participating in or organising an event types › Participation in workshop, seminar, course
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Edinburgh Chromatin, Epigenetics and Transcriptional Regulation Network
Vernimmen, D. (Organiser), Pennings, S. (Organiser), AlBawardi, W. (Speaker), Doyle, L. (Speaker) & Alhussini, A. (Speaker)
19 Mar 2025Activity: Participating in or organising an event types › Participation in workshop, seminar, course
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Prizes
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Senior Fellowship of the Higher Education Academy (SFHEA)
Pennings, S. (Recipient), 25 Aug 2021
Prize: Fellowships awarded competitively
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Epigenetics in Embryo Development and Embryonic Stem Cells - KAU SACB PhD Scholarship
Pennings, S. (Principal Investigator)
1/12/18 → …
Project: Other (Non-Funded/Miscellaneous)
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Molecular embryology approaches to investigate epigenetic roles in early development - Thai Government Scholarship
Pennings, S. (Principal Investigator)
15/09/15 → …
Project: Other (Non-Funded/Miscellaneous)
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DNA methylation dynamics and epigenetic diversity in development and cell reprogramming - Malaysian Government PhD Scholarship
Pennings, S. (Principal Investigator)
1/10/13 → …
Project: Other (Non-Funded/Miscellaneous)
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Hazard Identification Platform to Assess the Health Impacts from Indoor and Outdoor Air Pollutant Exposures, through Mechanistic Toxicology
Pennings, S. (Principal Investigator) & Meehan, R. (Co-investigator)
1/08/21 → 31/07/25
Project: Research
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Hazard Identification Platform to Assess the Health Impacts from Indoor and Outdoor Air Pollutant Exposures, through Mechanistic Toxicology
Meehan, R. (Principal Investigator), Meehan, R. (Principal Investigator) & Pennings, S. (Co-investigator)
Natural Environment Research Council
1/08/21 → 31/01/26
Project: Research