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Contact Details

Email
safina.gadeock@otago.ac.nz
Position
Research Fellow
Department
Department of Microbiology and Immunology
Qualifications
PhD
Research summary
Epithelial and immune cell dynamics in Inflammatory Bowel Disease
Teaching
Research Advisor for MICR 360, BBiomedSci, BSc( Hons), PhD students, Medical Resident Fellows, Postdoctoral Fellow
Memberships
  • 2023- Australian Society of Immunology
  • 2022- Principal Member, Gut Health Network, New Zealand
  • 2022- Principal Member, Live Human Tissue Network, New Zealand
  • 2022- Affiliate Investigator and Postgraduate Mentor, Maurice Wilkins Centre
  • 2018-22 American Gastroenterological Association
  • 2015- New Zealand Society of Gastroenterology
Clinical
Development of novel immune cell-derived TNF and IFN targets to predict clinical non-response in anti-TNF treated inflammatory bowel disease patients.

Research

Intestinal mucosal healing is rapidly becoming the primary therapeutic goal of medical treatments for inflammatory bowel disease (IBD). Epithelial stem cells are key players in the healing process for a wide variety of injury models, including Crohn’s and colitis, radiation, helminth infection, and T-cell activation. Despite extensive investigation of inflammation-induced epithelial repair processes, currently there is a lack of epithelial targeted therapies for IBD. Epithelial stem cell-derived 3D organoids provide a powerful physiological model to study stem cell regulation, epithelial barrier integrity and its interactions with the micro-environment.

Using IBD patient-derived intestinal organoids, we show for the first time that there is an inherent stem cell-dependent developmental defect in the epithelium and barrier function of these patients. We also reveal novel mechanisms through which TNF signaling via TNFR1 is essential for the proper specification and stem-cell niche function of colonic mesenchymal cells and epithelial deep crypt secretory cell regulation. Our current studies focus on investigating IFN targets to predict clinical non-response to anti-TNF treated IBD patients and determine its role in modulation of the epithelial innate response to commensal metabolites.

Thus, on a whole, organoids play a key role in modelling mucosal healing in IBD and offer personalized medicine as a tool for screening therapeutics for inflammatory diseases. By developing the human 3D organoid modelling system, we seek to develop new therapies targeting epithelial wound healing to improve patient outcomes in IBD.

Publications

King, M. R., Kemp, R. A., & Gadeock, S. (2025). Type I interferons in inflammatory bowel diseases: Balancing barrier integrity, repair and inflammation in the intestinal epithelium [Mini review]. Frontiers in Medicine, 12, 1713424. doi: 10.3389/fmed.2025.1713424 Journal - Research Other

King, M., Highton, A., Fan, L., Schultz, M., Kemp, R., & Gadeock, S. (2024, August). The role of type I interferons in regulating epithelial barrier integrity in human 3D stem cell derived organoids. Verbal presentation at the BMS Postgraduate Symposium, Dunedin, New Zealand. Conference Contribution - Verbal presentation and other Conference outputs

Gadeock, S. (2023, May). Organoids: A novel 3D platform for modelling inflammatory bowel disease. Department of Microbiology & Immunology Seminar, University of Otago, Dunedin, New Zealand. [Department Seminar]. Other Research Output

Angus, H. C. K., Urbano, P. C. M., Laws, G. A., Fan, S., Gadeock, S., Schultz, M., … Highton, A. J., & Kemp, R. A. (2022). An autologous colonic organoid-derived monolayer model to study immune: bacterial interactions in Crohn's disease patients. Clinical & Translational Immunology, 11, e1407. doi: 10.1002/cti2.1407 Journal - Research Article

Urbano, P. C. M., Angus, H. C. K., Gadeock, S., Schultz, M., & Kemp, R. A. (2022). Assessment of source material for human intestinal organoid culture for research and clinical use. BMC Research Notes, 15, 35. doi: 10.1186/s13104-022-05925-4 Journal - Research Article

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