Jen Southcombe
Group members
Abigail Blatchford (2nd Year DPhil Student)
Luba Maslej (1st Year MRes Student)
Maeve Janecka (1st Year DPhil Student)
Iona Glidden (1st Year DPhil Student)
Former group members
Dr Mengni Shen
Dr Ana Kisovar
Dr Zhixing Jin (Postdoctoral researcher)
Dr Yifan Wang
Biography
I completed my undergraduate degree in Biochemistry and Molecular Biology at the University of Leeds, then moved to the University of Oxford to the Human Immunology Unit, Weatherall Institute of Molecular Medicine, and obtained a DPhil working with Professors Xiaoning Xu and Gavin Screaton. I joined the Nuffield Department of Obstetrics and Gynaecology in 2007, to work on Immunology in Pre-eclampsia with Professors Ian Sargent and Chris Redman. My work focused on studying placental derived factors that contribute to maternal systemic inflammatory changes in pregnancy and pre-eclampsia. A key aspect of this work was studying the interactions between syncytiotrophoblast microvesicles and exosomes with immune cells in pregnancy.
Collaborators
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Christian M. Becker
Professor of Reproductive Sciences and Co-Director Endometriosis CaRe Centre.
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Rebecca Dragovic
Director of the MSc in Clinical Embryology
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Ingrid Granne
Deputy Head of Department, Associate Professor
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Pedro Melo
Senior Fellow & Consultant Subspecialist in Reproductive Medicine
Jen Southcombe
BSc (hons), DPhil (oxon)
Researcher in Reproductive Science
- Principal Investigator
Research Interests
I research immunity in the female reproductive tract, with specific focus on understanding immunological events that lead to the establishment of pregnancy. The endometrium is a highly dynamic mucosal tissue and immune cells not only provide host responses against pathogens, but they are essential for embryo implantation, placentation and pregnancy success. I also research endometriosis and adenomyosis, and seek to understand the mechanisms behind infertility and pain in these patients.
Cellular mechanisms behind lesion formation and pathology in endometriosis and adenomyosis.
Women who suffer form endometriosis have severe pelvic pain and have both an increased risk of autoimmunity and fertility issues, we are studying the endometrium and lesions in women with endometriosis and adenomyosis, to identify cellular differences in patients. For further information click here. We are growing organoid cultures of lesions and endometrium to further understand disease mechanisms.
Endometrial immune cells and their role in recurrent pregnancy loss.
We have identified changes to immune cell subpopulations in RPL, using RNA sequencing, flow cytometry and immunohistochemistry to investigate transcriptomic and phenotypic changes. Our work on Treg in RPL can be read here https://rdcu.be/cyd7N
The PIP Study - Pre- IVF Immune Profiling Study (PIP)
The immune cellular landscape of peri-implantation endometrium remains poorly defined in Recurrent Implantation Failure (RIF), Recurrent Pregnancy Loss (RPL) and subfertility. This study aims to define normality and identify changes to T, B, NK, NKT cellular proportions in women suffering from these pathologies.
Extracellular Vesicles in reproductive Health
Extracellular Vesicles (EVs) range in size from 50nm – 2000nm in diameter, they are released by cells and are enriched in specific cargoes (for example, lipids, proteins, nucleic acids and metabolites), reflecting their cell of origin, and can deliver these to recipient cells. I am researching EVs and their role in reproductive health, for example they are present in seminal fluid and we have shown they influence the female reproductive tract.
Endometriosis Organoids
Key publications
An integrated single-cell reference atlas of the human endometrium.
Journal article
Marečková M. et al, (2024), Nat Genet, 56, 1925 - 1937
Characterisation of peri-implantation endometrial Treg and identification of an altered phenotype in recurrent pregnancy loss.
Journal article
Granne I. et al, (2022), Mucosal Immunol, 15, 120 - 129
B Cell Subset Analysis and Gene Expression Characterization in Mid-Luteal Endometrium.
Journal article
Shen M. et al, (2021), Front Cell Dev Biol, 9
The genetic architecture of sporadic and multiple consecutive miscarriage.
Journal article
Laisk T. et al, (2020), Nat Commun, 11
Recent publications
CD138 expression in the endometrium associates with endometrial timing and inflammatory status but not microbiota composition.
Journal article
Odendaal J. et al, (2026), Hum Reprod
Human Endometriotic Lesion-Derived Small Extracellular Vesicles Impair Macrophage Function in the Peritoneal Microenvironment.
Journal article
Wang Y. et al, (2026), J Extracell Vesicles, 15
Embryo secretome regulation of the endometrial epithelial transcriptome: development of a model to test for embryo viability.
Journal article
Jin Z. et al, (2026), Mol Hum Reprod, 32
Serum relaxin levels and cardiovascular health in pregnancy: A secondary analysis of the Oxfordshire women and their Children's health (OxWATCH) study.
Journal article
Altman R. et al, (2025), Eur J Obstet Gynecol Reprod Biol, 315
Research groups
Opportunities to join the group
I welcome speculative enquiries to join my group, in the first instance please email; for research into endometriosis please fill in this form
Please also consider applying for this MRC iCASE award in collaboration with Accession Therapeutics -Development of a novel endometriosis treatment using a targeted viral immunotherapy.