Personal profile
CV
ACADEMIC DEGREES
May 2015: PhD in Pharmaceutics, University of Copenhagen
May 2010: MSc in Biochemistry, University of Copenhagen
APPOINTMENTS
2022-: Associate Professor, CNS Drug Delivery & Barrier Modelling , Department of Pharmacy, University of Copenhagen (group leader as of October 2021)
2016-2021: Tenure Track Assistant Professor, CNS Drug Delivery & Barrier Modelling, Department of Pharmacy, University of Copenhagen (group leader: Professor Birger Brodin)
2015-2016: Postdoc, Peptide and Protein Drug Delivery, Department of Pharmacy, University of Copenhagen (mentor: Professor Hanne Mørck Nielsen)
2011-2015: PhD student, Biologics, Department of Pharmacy, University of Copenhagen (8 months maternity leave) (Supervisor: Professor Hanne Mørck Nielsen)
2011-2013: Visiting PhD student, The Novo Nordisk Foundation Center for Protein Research, Copenhagen (Supervisor: Associate Professor Jens Berthelsen)
2010-2011: Scientific Assistant, Developmental Neurobiology, Max Delbrück Center for Molecular Medicine, Berlin (mentor: Fritz G. Rathjen)
TEACHING
2020-present: Farmaci I. 2019-present: Drug Delivery to the Central Nervous System. 2018-present: Pharmaceutics & Drug Delivery. 2017-present: Farmaci II. 2017-present: Research Project in Pharmaceutics and Drug Delivery. 2016: Biopharmaceuticals: Formulation of Peptides and Proteins. 2016: Lægemiddelformulering. 2012: In vitro techniques in biochemistry and pharmacology. 2012: Basic Pharmaceutics.
Primary fields of research
Various biological barriers act as gatekeepers for successful drug delivery to the brain; e.g. the blood-brain barrier, the nose-to-brain barrier, and the blood-cerebrospinal fluid barrier.
I study strategies to overcome these barriers for brain drug delivery purposes using state-of-the-art cell culture models, to improve understanding of cellular pathways involved, as well as animals for pharmacokinetic- and pharmacodynamics profiling. Ultimately, this knowledge will be beneficial in the making of new drugs for the treatment of brain diseases.
Running projects include:
- Drug delivery across the blood-brain barrier using shuttle peptides. The shuttle peptides include cell-penetrating- and tight junction-modulating peptides. Subprojects count i) studies on the mechanism of barrier permeation at the cellular level, ii) effects of applying various labels to the shuttle peptide for detection and visualization purposes, and iii) pharmacokinetic evaluation in rodents including safety assessment.
- Nose-to-brain as pathway for pharmacological treatment of stroke-triggered brain tissue damage. Subprojects count i) setting up and characterization of a state-of-the-art primary nasal epithelial cell culture model, ii) evaluate the potential of shuttle peptides to improve brain drug delivery in vitro and in vivo, and iii) understand the mechanism of barrier permeation.
Collaborations and top research areas from the last five years
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Decanoate-induced permeation enhancement: Distinct membrane effects of micellar and vesicular colloids
Cunha, C., Heade, J., Raptis, K., Li, L., Duan, Y., Dietl, S., Kristensen, M., A.S. Bergström , C. & Nielsen, H. M., 2026, In: Pharmacological Research. 5Research output: Contribution to journal › Journal article › Research › peer-review
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Elucidating the roles of TM7SF3 and LHFPL6 in the putative H +/OC antiporter function in the human brain capillary endothelial cell line, hCMEC/D3.
Svane, N., Kurosawa, T., Schmid, B., Saaby, L., Kristensen, M., Tabata, H., Kubo, Y., Terasaki, T., Brodin, B. & Deguchi, Y., 2026, In: European Journal of Pharmaceutical Sciences. 217, 10 p., 107409.Research output: Contribution to journal › Journal article › Research › peer-review
Open AccessFile4 Downloads (Pure) -
Evaluating sex as a biological variable in in vitro blood-brain barrier models: insights from primary mouse brain endothelial cells
Thaysen, M., Ørum, L. T., Pedersen, A. B. V., Svane, N., Frazier, S. E. D., Saaby, L., Brodin, B. & Kristensen, M., 23 Feb 2026, (E-pub ahead of print) In: Fluids and Barriers of the CNS.Research output: Contribution to journal › Journal article › Research › peer-review
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Modifying the PSD-95 inhibitor NA-1 for brain delivery through proteolytic stabilization and conjugation to the potentially brain homing peptide BR1
Kolberg, H. G., Kjær Andresen, A., Thaysen, M., Jensen, C., Larsen, B. B., Gammelgaard, B. & Kristensen, M., 2026, In: International Journal of Pharmaceutics. 687, 11 p., 126434.Research output: Contribution to journal › Journal article › Research › peer-review
Open AccessFile8 Downloads (Pure) -
Efficient Generation of Expandable Dorsal Forebrain Neural Rosette Stem Cell Lines
Frazier, S. E. D., Honnens de Lichtenberg, K., Jaberi, E., Bertelsen, C., Møller Jensen, S., Wrona, A., Strøyer Christophersen, N., Kristensen, M. & Villaescusa, J. C., 2025, In: eLife. 14, 37 p., RP107930.Research output: Contribution to journal › Journal article › Research › peer-review
Open AccessFile4 Downloads (Pure) -
The PSD-95 inhibitor NA-1 is delivered to the brain upon nasal administration with uptake into the olfactory bulb improved by co-administration with the cell-penetrating peptides lowPro and Tat
Schmidt, S. E., Sandbjerg, C., Joensen, G., Thaysen, M., Gammelgaard, B., Schindowski, K. & Kristensen, M., 2025, (Accepted/In press) In: Drug Delivery and Translational Research.Research output: Contribution to journal › Journal article › Research › peer-review
Open Access1 Citation (Scopus) -
Therapeutic Potential of Neural Rosette Stem Cell-Derived Small Extracellular Vesicles in the Management of Brain Edema
Frazier, S. E. D., Krickau Pedersen, S., Kryger Vøls, K., Lie, M., Quintana, C., Møller Nielsen, F., Wrona, A., Willenbrock, H., Chen, Q., Qu, X., Yang, J., Strøyer Christophersen , N., Kristensen, M. & Villaescusa, C., 2025, 51 p. (bioRxiv).Research output: Working paper › Preprint
File2 Downloads (Pure) -
Insulin-inspired peptides may open new pathways to treat Alzheimer's disease
Kristensen, M., 3 Dec 2024, In: Proceedings of the National Academy of Sciences of the United States of America. 121, 49, 3 p., e2419741121.Research output: Contribution to journal › Comment/debate › Research › peer-review
Open AccessFile1 Citation (Scopus)14 Downloads (Pure)
Activities
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20th Symposium on Signal Transduction at the Blood-Brain Barrier
Kristensen, M. (Participant)
2017 → …Activity: Participating in an event - types › Participation in workshop, seminar, course
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Benzon Symposium 63 – New Paradigms of Protein Engineering
Kristensen, M. (Participant)
2017 → …Activity: Participating in an event - types › Participation in workshop, seminar, course
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19th Symposium in Signal Transduction
Kristensen, M. (Participant)
2016 → …Activity: Participating in an event - types › Participation in workshop, seminar, course
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Cold Spring Harbor
Kristensen, M. (Participant)
2016 → …Activity: Participating in an event - types › Participation in workshop, seminar, course
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Crossing Biological Barriers
Kristensen, M. (Participant)
9 Nov 2015 → 11 Nov 2015Activity: Participating in an event - types › Organisation of and participation in conference
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Annual Controlled Release Society meeting
Kristensen, M. (Participant)
26 Jul 2015 → 29 Jul 2015Activity: Participating in an event - types › Organisation of and participation in conference
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From Cell-Penetrating Peptides to Nanoparticles for Cellular Delivery
Kristensen, M. (Participant)
1 Jul 2015 → 3 Jul 2015Activity: Participating in an event - types › Organisation of and participation in conference
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Electron Microscopy
Kristensen, M. (Participant)
2014 → …Activity: Participating in an event - types › Participation in workshop, seminar, course