Sarka Lehtonen
Research Director
I lead the Human Brain Disease Modelling research lab at the A.I.Virtanen Institute for Molecular...
A.I. Virtanen Institute for Molecular Sciences, Faculty of Health Sciences
My focus in recent years has been to understand the cellular and molecular mechanisms of neurological diseases, especially Parkinson`s disease, schizophrenia and psychopathy. We use patient-derived brain cells in 2D and 3D culture systems to mimic the pathological conditions in the diseased brain more accurately. We also center our efforts on discovering new drug targets and biomarkers for the studied diseases. As the blood-brain barrier (BBB) and the ability of drugs to cross the BBB and reach the correct target is critical when designing drugs for neurological diseases, our third aim is to establish a simple model that mimics the physiological architecture and the barrier properties of the BBB. Once created, the ability of novel drugs and biomolecules like extracellular vesicles to penetrate the BBB can be tested. The model can also be used to understand the molecular and transport mechanisms that regulate BBB permeability in physiological and pathological conditions. Gained knowledge and novel discoveries will open in the future new opportunities for therapeutic developments.
For more information, please visit our research group website: https://sites.uef.fi/human-brain-disease-modelling-group/
Publications
70/70 items-
Astrocytes Regulate Neuronal Network Burst Frequency Through NMDA Receptors in a Species- and Donor-Specific Manner
Räsänen, Noora; Tiihonen, Jari; Koskuvi, Marja; Lehtonen, Šárka; Jalkanen, Nelli; Karmila, Nelli; Weert, Isabelle; Vaurio, Olli; Ojansuu, Ilkka; Lähteenvuo, Markku; Pietiläinen, Olli; Koistinaho, Jari. 2024. Biological psychiatry global open science. 4: . 100313 A1 Journal article (refereed), original research -
Biotransformation of nanoplastics in human plasma and their permeation through a model in vitro blood-brain barrier: An in-depth quantitative analysis
Abdolahpur Monikh, Fazel; Lehtonen, Šárka; Kekäläinen, Jukka; Karkossa, Isabel; Auriola, Seppo; Schubert, Kristin; Zanut, Alessandra; Peltonen, Sanni; Niskanen, Jonna; Bandekar, Mandar; von Bergen, Martin; Leskinen, Jari TT; Koistinen, Arto; Bogialli, Sara; Guo, Zhiling; Kukkonen, Jussi VK; Chen, Chunying; Lynch, Iseult. 2024. Nano today. 59: . 102466 A1 Journal article (refereed), original research -
Genetic contribution to microglial activation in schizophrenia
Koskuvi, Marja; Pörsti, Elina; Hewitt, Tristen; Räsänen, Noora; Wu, Ying-Chieh; Trontti, Kalevi; McQuade, Amanda; Kalyanaraman, Shringaa; Ojansuu, Ilkka; Vaurio, Olli; Cannon, Tyrone D; Lönnqvist, Jouko; Therman, Sebastian; Suvisaari, Jaana; Kaprio, Jaakko; Blurton-Jones, Mathew; Hovatta, Iiris; Lähteenvuo, Markku; Rolova, Taisia; Lehtonen, Šárka; Tiihonen, Jari; Koistinaho, Jari. 2024. Molecular psychiatry. 29: 2622-2633 A1 Journal article (refereed), original research -
Highly scalable and standardized organ-on-chip platform with TEER for biological barrier modeling
Nguyen, Hoang-Tuan; Rissanen, Siiri-Liisa; Peltokangas, Mimosa; Laakkonen, Tino; Kettunen, Jere; Barthod, Lara; Sivakumar, Ragul; Palojärvi, Anniina; Junttila, Pauliina; Talvitie, Jussi; Bassis, Michele; Nickels, Sarah L; Kalvala, Sara; Ilina, Polina; Tammela, Päivi; Lehtonen, Sarka; Schwamborn, Jens C; Mosser, Sebastien; Singh, Prateek. 2024. Tissue barriers. 12: . 2315702 A1 Journal article (refereed), original research -
Human iPSC-derived pericyte-like cells carrying APP Swedish mutation overproduce beta-amyloid and induce cerebral amyloid angiopathy-like changes
Wu, Ying-Chieh; Lehtonen, Šárka; Trontti, Kalevi; Kauppinen, Riitta; Kettunen, Pinja; Leinonen, Ville; Laakso, Markku; Kuusisto, Johanna; Hiltunen, Mikko; Hovatta, Iiris; Freude, Kristine; Dhungana, Hiramani; Koistinaho, Jari; Rolova, Taisia. 2024. Fluids and barriers of the cns. 21: . 78 A1 Journal article (refereed), original research -
Identification of the abnormalities in astrocytic functions as potential drug targets for neurodegenerative disease
Syvänen, Valtteri; Koistinaho, Jari; Lehtonen, Sarka. 2024. Expert opinion on drug discovery. 19: 603-616 A2 Review article, Literature review, Systematic review -
Induced Pluripotent Stem Cell-Derived Microglia to Study Nlrp3 Inflammasome Activation in Alzheimer’s Disease
Erdoğan, Aslı; Dansokho, Cira; Koıstınaho, Jari; Lehtonen, Sarka; Solakoğlu, Seyhun; Heneka, Michael. 2024. Journal of Istanbul Faculty of Medicine. 87: 299-311 A1 Journal article (refereed), original research -
Integrative metabolomics-genomics analysis identifies key networks in a stem cell-based model of schizophrenia
Spathopoulou, Angeliki; Sauerwein, Gabriella A; Marteau, Valentin; Podlesnic, Martina; Lindlbauer, Theresa; Kipura, Tobias; Hotze, Madlen; Gabassi, Elisa; Kruszewski, Katharina; Koskuvi, Marja; Rethelyi, Janos M; Apati, Agota; Conti, Luciano; Ku, Manching; Koal, Therese; Mueller, Udo; Talmazan, Radu A; Ojansuu, Ilkka; Vaurio, Olli; Lahteenvuo, Markku; Lehtonen, Sarka; Mertens, Jerome; Kwiatkowski, Marcel; Gunther, Katharina; Tiihonen, Jari; Koistinaho, Jari; Trajanoski, Zlatko; Edenhofer, Frank. 2024. Molecular psychiatry. 29: 3128-3140 A1 Journal article (refereed), original research -
LRRK2 G2019S Mutated iPSC-Derived Endothelial Cells Exhibit Increased α-Synuclein, Mitochondrial Impairment, and Altered Inflammatory Responses
Sonninen, Tuuli-Maria; Peltonen, Sanni; Niskanen, Jonna; Hämäläinen, Riikka H; Koistinaho, Jari; Lehtonen, Šárka. 2024. International journal of molecular sciences. 25: A1 Journal article (refereed), original research -
Mutated LRRK2 induces a reactive phenotype and alters migration in human iPSC-derived pericyte-like cells
Peltonen, Sanni; Sonninen, Tuuli-Maria; Niskanen, Jonna; Koistinaho, Jari; Ruponen, Marika; Lehtonen, Šárka. 2024. Fluids and barriers of the cns. 21: . 92 A1 Journal article (refereed), original research