Personal profile
Research interests
Focus of my research is on the human intestinal microbiome, its composition and its interactions with our body. My main project comes forth from the NNF grant, which aims to develop advanced microbiome therapeutics together with researchers from DTU and U. Gothenburg. In Denmark, a hormone producing E. coli nissle has been developed, which is currently being tested in animals. Here in the AMC, I will set up a randomized, placebo controlled clinical trial to test the GMO for clinical efficacy in about 20 patients.
Next to this project, I will also work on a project with bacteriophages. It is known that fecal microbiota transplantation can improve glucose handling and insulin sensitivity in patients at risk to develop type 2 diabetes. Since there is limited insight in the role of phages in the human gut microbiota and the gut virome in diabetics is unknown, we will perform phage transplantations in these patients to assess the effects on gut microbiota composition and glucose metabolism. This will be done in a randomized, placebo-controlled clinical trial with 24 patients.
As a third project, I will work on the optimization of fecal microbiota transplantations. During my research internship at the AMC, I already developed and tested encapsulated fecal microbiota, but this still has to be tested clinically. As an expansion, I will develop capsules from sterile filtered fecal microbiota to facilitate the phage transplantations. I would like to compare the encapsulated phages with the phage transplantation by nasoduodenal infusion.
Specialisation
Education/Academic qualification
Master, Pharmacy, Utrecht University: Department of Pharmaceutical Sciences
1 Sept 2015 → 31 Aug 2018
Award Date: 31 Aug 2018
Bachelor, Pharmacy, Utrecht University: Department of Pharmaceutical Sciences
1 Sept 2012 → 31 Aug 2015
Award Date: 31 Aug 2015
Expertise related to UN Sustainable Development Goals
In 2015, UN member states agreed to 17 global Sustainable Development Goals (SDGs) to end poverty, protect the planet and ensure prosperity for all. This person’s work contributes towards the following SDG(s):
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SDG 3 Good Health and Well-being
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Collaborations and top research areas from the last five years
Research output
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Autologous fecal microbiota capsules are safe and potentially preserve beta-cell function in individuals with type 1 diabetes
de Groen, P., Fuhri Snethlage, C. M., Wortelboer, K., Tokgöz, S., Davids, M., Verdoes, X., Westerbeke, F. H. M., Meijer, R. I., Gotthardt, M., de Vos, W. M., Herrema, H., Nieuwdorp, M. & Hanssen, N. M. J., 2025, In: Gut microbes. 17, 1, 2563155.Research output: Contribution to journal › Article › Academic › peer-review
Open AccessFile28 Downloads (Pure) -
Kap-centric Nsp1-mediated nuclear transport at full amino acid resolution
Dekker, M., de Vries, H. W., Wortelboer, K. A., Beekhuis, H. J., van Oosterhout, M. G. J. E., van der Giessen, E. & Onck, P. R., 1 Dec 2025, In: Nat. Commun.. 16, 1, 11497.Research output: Contribution to journal › Article › Academic › peer-review
Open AccessFile24 Downloads (Pure) -
Randomised double-blind placebo-controlled trial protocol to evaluate the therapeutic efficacy of lyophilised faecal microbiota capsules amended with next-generation beneficial bacteria in individuals with metabolic dysfunction-associated steatohepatitis
Augustijn, Q. J. J., Grefhorst, A., de Groen, P., Wortelboer, K., Seegers, J. F. M. L., Gül, I. S., Suenaert, P., Verheij, J., de Vos, W. M., Herrema, H., Nieuwdorp, M. & Holleboom, A. G., 9 Jan 2025, In: BMJ open. 15, 1, e088290.Research output: Contribution to journal › Article › Academic › peer-review
Open AccessFile42 Downloads (Pure) -
Bacteriophages from treatment-naïve type 2 diabetes individuals drive an inflammatory response in human co-cultures of dendritic cells and T cells
Scheithauer, T. P. M., Wortelboer, K., Winkelmeijer, M., Verdoes, X., Aydin, Ö., Acherman, Y. I. Z., de Brauw, M. L., Nieuwdorp, M., Rampanelli, E., de Jonge, P. A. & Herrema, H., 2024, In: Gut microbes. 16, 1, 2380747.Research output: Contribution to journal › Article › Academic › peer-review
Open AccessFile20 Downloads (Pure) -
Can fecal microbiota transplantations modulate autoimmune responses in type 1 diabetes?
Fuhri Snethlage, C. M., de Wit, D., Wortelboer, K., Rampanelli, E., Hanssen, N. M. J. & Nieuwdorp, M., Aug 2024, In: Immunological reviews. 325, 1, p. 46-63 18 p.Research output: Contribution to journal › Review article › Academic › peer-review
Open AccessFile21 Downloads (Pure)
Prizes
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Early-stage researcher 2nd prize for flash talk and poster presentation
Wortelboer, K. (Recipient), 13 Sept 2022
Prize › Academic
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Poster Prize - EMBO|EMBL Symposium - The Human Microbiome
Wortelboer, K. (Recipient), 23 Sept 2023
Prize › Academic
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