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Marttinen M, Ferreira CB, Paldanius KMA, Takalo M, Natunen T, Mäkinen P, Leppänen L, Leinonen V, Tanigaki K, Kang G, Hiroi N, Soininen H, Rilla K, Haapasalo A, Hiltunen M. Presynaptic Vesicle Protein SEPTIN5 Regulates the Degradation of APP C-Terminal Fragments and the Levels of Aβ. Cells 2020; 9:cells9112482. [PMID: 33203136 PMCID: PMC7696542 DOI: 10.3390/cells9112482] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2020] [Revised: 11/05/2020] [Accepted: 11/10/2020] [Indexed: 12/28/2022] Open
Abstract
Alzheimer's disease (AD) is a neurodegenerative disease characterized by aberrant amyloid-β (Aβ) and hyperphosphorylated tau aggregation. We have previously investigated the involvement of SEPTIN family members in AD-related cellular processes and discovered a role for SEPTIN8 in the sorting and accumulation of β-secretase. Here, we elucidated the potential role of SEPTIN5, an interaction partner of SEPTIN8, in the cellular processes relevant for AD, including amyloid precursor protein (APP) processing and the generation of Aβ. The in vitro and in vivo studies both revealed that the downregulation of SEPTIN5 reduced the levels of APP C-terminal fragments (APP CTFs) and Aβ in neuronal cells and in the cortex of Septin5 knockout mice. Mechanistic elucidation revealed that the downregulation of SEPTIN5 increased the degradation of APP CTFs, without affecting the secretory pathway-related trafficking or the endocytosis of APP. Furthermore, we found that the APP CTFs were degraded, to a large extent, via the autophagosomal pathway and that the downregulation of SEPTIN5 enhanced autophagosomal activity in neuronal cells as indicated by altered levels of key autophagosomal markers. Collectively, our data suggest that the downregulation of SEPTIN5 increases the autophagy-mediated degradation of APP CTFs, leading to reduced levels of Aβ in neuronal cells.
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Affiliation(s)
- Mikael Marttinen
- Institute of Biomedicine, University of Eastern Finland, 70210 Kuopio, Finland; (M.M.); (K.M.A.P.); (M.T.); (T.N.); (P.M.); (L.L.); (K.R.)
| | - Catarina B. Ferreira
- Instituto de Medicina Molecular—João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, 1649-028 Lisboa, Portugal;
| | - Kaisa M. A. Paldanius
- Institute of Biomedicine, University of Eastern Finland, 70210 Kuopio, Finland; (M.M.); (K.M.A.P.); (M.T.); (T.N.); (P.M.); (L.L.); (K.R.)
| | - Mari Takalo
- Institute of Biomedicine, University of Eastern Finland, 70210 Kuopio, Finland; (M.M.); (K.M.A.P.); (M.T.); (T.N.); (P.M.); (L.L.); (K.R.)
| | - Teemu Natunen
- Institute of Biomedicine, University of Eastern Finland, 70210 Kuopio, Finland; (M.M.); (K.M.A.P.); (M.T.); (T.N.); (P.M.); (L.L.); (K.R.)
| | - Petra Mäkinen
- Institute of Biomedicine, University of Eastern Finland, 70210 Kuopio, Finland; (M.M.); (K.M.A.P.); (M.T.); (T.N.); (P.M.); (L.L.); (K.R.)
| | - Luukas Leppänen
- Institute of Biomedicine, University of Eastern Finland, 70210 Kuopio, Finland; (M.M.); (K.M.A.P.); (M.T.); (T.N.); (P.M.); (L.L.); (K.R.)
| | - Ville Leinonen
- Institute of Clinical Medicine–Neurosurgery, University of Eastern Finland, 70210 Kuopio, Finland;
- Neurology of Neuro Center Kuopio University Hospital, 70210 Kuopio, Finland
| | - Kenji Tanigaki
- Research Institute, Shiga Medical Center, Shiga 524-8524, Japan;
| | - Gina Kang
- Department of Pharmacology, Department of Integrative and Systems Physiology, Department of Cell Systems and Anatomy, Department of Psychiatry, University of Texas Health Science Center, San Antonio, TX 77030, USA; (G.K.); (N.H.)
| | - Noboru Hiroi
- Department of Pharmacology, Department of Integrative and Systems Physiology, Department of Cell Systems and Anatomy, Department of Psychiatry, University of Texas Health Science Center, San Antonio, TX 77030, USA; (G.K.); (N.H.)
| | - Hilkka Soininen
- Institute of Clinical Medicine–Neurology, University of Eastern Finland, 70210 Kuopio, Finland;
| | - Kirsi Rilla
- Institute of Biomedicine, University of Eastern Finland, 70210 Kuopio, Finland; (M.M.); (K.M.A.P.); (M.T.); (T.N.); (P.M.); (L.L.); (K.R.)
| | - Annakaisa Haapasalo
- A.I Virtanen Institute for Molecular Sciences, University of Eastern Finland, 70210 Kuopio, Finland
- Correspondence: (A.H.); (M.H.); Tel.: +358-40-355-2768 (A.H.); +358-40-355-2014 (M.H.)
| | - Mikko Hiltunen
- Institute of Biomedicine, University of Eastern Finland, 70210 Kuopio, Finland; (M.M.); (K.M.A.P.); (M.T.); (T.N.); (P.M.); (L.L.); (K.R.)
- Correspondence: (A.H.); (M.H.); Tel.: +358-40-355-2768 (A.H.); +358-40-355-2014 (M.H.)
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Felszeghy S, Pasonen-Seppänen S, Koskela A, Nieminen P, Härkönen K, Paldanius KMA, Gabbouj S, Ketola K, Hiltunen M, Lundin M, Haapaniemi T, Sointu E, Bauman EB, Gilbert GE, Morton D, Mahonen A. Using online game-based platforms to improve student performance and engagement in histology teaching. BMC Med Educ 2019; 19:273. [PMID: 31331319 PMCID: PMC6647160 DOI: 10.1186/s12909-019-1701-0] [Citation(s) in RCA: 62] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/16/2019] [Accepted: 07/09/2019] [Indexed: 05/06/2023]
Abstract
BACKGROUND Human morphology is a critical component of dental and medical graduate training. Innovations in basic science teaching methods are needed to keep up with an ever-changing landscape of technology. The purpose of this study was to investigate whether students in a medical and dental histology course would have better grades if they used gaming software Kahoot® and whether gamification effects on learning and enjoyment. METHODS In an effort to both evoke students' interest and expand their skill retention, an online competition using Kahoot® was implemented for first-year students in 2018 (n = 215) at the University of Eastern Finland. Additionally, closed (160/215) or open-ended (41/215) feedback questions were collected and analyzed. RESULTS The Kahoot® gamification program was successful and resulted in learning gains. The overall participant satisfaction using Kahoot® was high, with students (124/160) indicating that gamification increased their motivation to learn. The gaming approach seemed to enable the students to overcome individual difficulties (139/160) and to set up collaboration (107/160); furthermore, gamification promoted interest (109/160), and the respondents found the immediate feedback from senior professionals to be positive (146/160). In the open-ended survey, the students (23/41) viewed collaborative team- and gamification-based learning positively. CONCLUSION This study lends support to the use of gamification in the teaching of histology and may provide a foundation for designing a gamification-integrated curriculum across healthcare disciplines.
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Affiliation(s)
- Szabolcs Felszeghy
- Institute of Biomedicine, School of Medicine, Faculty of Health Sciences, University of Eastern Finland, Yliopistonranta 1, 70211 Kuopio, Finland
- Institute of Dentistry, Faculty of Health Sciences, University of Eastern Finland, Kuopio, Finland
| | - Sanna Pasonen-Seppänen
- Institute of Biomedicine, School of Medicine, Faculty of Health Sciences, University of Eastern Finland, Yliopistonranta 1, 70211 Kuopio, Finland
| | - Ali Koskela
- Institute of Medicine, School of Medicine, Faculty of Health Sciences, University of Eastern Finland, Kuopio, Finland
| | - Petteri Nieminen
- Institute of Biomedicine, School of Medicine, Faculty of Health Sciences, University of Eastern Finland, Yliopistonranta 1, 70211 Kuopio, Finland
| | - Kai Härkönen
- Institute of Biomedicine, School of Medicine, Faculty of Health Sciences, University of Eastern Finland, Yliopistonranta 1, 70211 Kuopio, Finland
| | - Kaisa M. A. Paldanius
- Institute of Biomedicine, School of Medicine, Faculty of Health Sciences, University of Eastern Finland, Yliopistonranta 1, 70211 Kuopio, Finland
| | - Sami Gabbouj
- Institute of Biomedicine, School of Medicine, Faculty of Health Sciences, University of Eastern Finland, Yliopistonranta 1, 70211 Kuopio, Finland
| | - Kirsi Ketola
- Institute of Biomedicine, School of Medicine, Faculty of Health Sciences, University of Eastern Finland, Yliopistonranta 1, 70211 Kuopio, Finland
| | - Mikko Hiltunen
- Institute of Biomedicine, School of Medicine, Faculty of Health Sciences, University of Eastern Finland, Yliopistonranta 1, 70211 Kuopio, Finland
| | | | - Tommi Haapaniemi
- Student and Learning Services, University of Eastern Finland, Kuopio, Finland
| | - Erkko Sointu
- School of Educational Sciences and Psychology, Philosophical Faculty, University of Eastern Finland, Joensuu, Finland
| | | | | | - David Morton
- Department of Neurobiology and Anatomy, University of Utah School of Medicine, Salt Lake City, UT USA
| | - Anitta Mahonen
- Institute of Biomedicine, School of Medicine, Faculty of Health Sciences, University of Eastern Finland, Yliopistonranta 1, 70211 Kuopio, Finland
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Marttinen M, Paananen J, Neme A, Mitra V, Takalo M, Natunen T, Paldanius KMA, Mäkinen P, Bremang M, Kurki MI, Rauramaa T, Leinonen V, Soininen H, Haapasalo A, Pike I, Hiltunen M. A multiomic approach to characterize the temporal sequence in Alzheimer's disease-related pathology. Neurobiol Dis 2018; 124:454-468. [PMID: 30557660 DOI: 10.1016/j.nbd.2018.12.009] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2018] [Revised: 11/15/2018] [Accepted: 12/13/2018] [Indexed: 02/08/2023] Open
Abstract
No single-omic approach completely elucidates the multitude of alterations taking place in Alzheimer's disease (AD). Here, we coupled transcriptomic and phosphoproteomic approaches to determine the temporal sequence of changes in mRNA, protein, and phosphopeptide expression levels from human temporal cortical samples, with varying degree of AD-related pathology. This approach highlighted fluctuation in synaptic and mitochondrial function as the earliest pathological events in brain samples with AD-related pathology. Subsequently, increased expression of inflammation and extracellular matrix-associated gene products was observed. Interaction network assembly for the associated gene products, emphasized the complex interplay between these processes and the role of addressing post-translational modifications in the identification of key regulators. Additionally, we evaluate the use of decision trees and random forests in identifying potential biomarkers differentiating individuals with different degree of AD-related pathology. This multiomic and temporal sequence-based approach provides a better understanding of the sequence of events leading to AD.
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Affiliation(s)
- Mikael Marttinen
- Institute of Biomedicine, University of Eastern Finland, Kuopio 70210, Finland
| | - Jussi Paananen
- Institute of Biomedicine, University of Eastern Finland, Kuopio 70210, Finland
| | - Antonio Neme
- Institute of Biomedicine, University of Eastern Finland, Kuopio 70210, Finland
| | - Vikram Mitra
- Proteome Sciences plc, Cobham, London WC1H 9BB, United Kingdom
| | - Mari Takalo
- Institute of Biomedicine, University of Eastern Finland, Kuopio 70210, Finland
| | - Teemu Natunen
- Institute of Biomedicine, University of Eastern Finland, Kuopio 70210, Finland
| | - Kaisa M A Paldanius
- Institute of Biomedicine, University of Eastern Finland, Kuopio 70210, Finland
| | - Petra Mäkinen
- Institute of Biomedicine, University of Eastern Finland, Kuopio 70210, Finland
| | - Michael Bremang
- Proteome Sciences plc, Cobham, London WC1H 9BB, United Kingdom
| | - Mitja I Kurki
- Analytic and Translational Genetics Unit, Massachusetts General Hospital, Boston, MA 02114, USA; Program in Medical and Population Genetics, Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA; Department of Psychiatry, Psychiatric and Neurodevelopmental Genetics Unit, Massachusetts General Hospital, Boston, MA 02114, USA; Neurosurgery of Neuro Center, Kuopio University Hospital, Kuopio 70029, Finland
| | - Tuomas Rauramaa
- Department of Pathology, Kuopio University Hospital and University of Eastern Finland, Kuopio 70029, Finland
| | - Ville Leinonen
- Neurosurgery of Neuro Center, Kuopio University Hospital, Kuopio 70029, Finland
| | - Hilkka Soininen
- Neurology of Neuro Center, Kuopio University Hospital, Kuopio 70029, Finland; Institute of Clinical Medicine/Neurology, University of Eastern Finland, Kuopio 70210, Finland
| | - Annakaisa Haapasalo
- A.I. Virtanen Institute for Molecular Sciences, University of Eastern Finland, Kuopio 70211, Finland
| | - Ian Pike
- Proteome Sciences plc, Cobham, London WC1H 9BB, United Kingdom
| | - Mikko Hiltunen
- Institute of Biomedicine, University of Eastern Finland, Kuopio 70210, Finland.
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Sarajärvi T, Jäntti M, Paldanius KMA, Natunen T, Wu JC, Mäkinen P, Tarvainen I, Tuominen RK, Talman V, Hiltunen M. Protein kinase C -activating isophthalate derivatives mitigate Alzheimer's disease-related cellular alterations. Neuropharmacology 2018; 141:76-88. [PMID: 30138694 DOI: 10.1016/j.neuropharm.2018.08.020] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2018] [Revised: 08/15/2018] [Accepted: 08/19/2018] [Indexed: 12/26/2022]
Abstract
Abnormal protein kinase C (PKC) function contributes to many pathophysiological processes relevant for Alzheimer's disease (AD), such as amyloid precursor protein (APP) processing. Phorbol esters and other PKC activators have been demonstrated to enhance the secretion of soluble APPα (sAPPα), reduce the levels of β-amyloid (Aβ), induce synaptogenesis, and promote neuroprotection. We have previously described isophthalate derivatives as a structurally simple family of PKC activators. Here, we characterised the effects of isophthalate derivatives HMI-1a3 and HMI-1b11 on neuronal viability, neuroinflammatory response, processing of APP and dendritic spine density and morphology in in vitro. HMI-1a3 increased the viability of embryonic primary cortical neurons and decreased the production of the pro-inflammatory mediator TNFα, but not that of nitric oxide, in mouse neuron-BV2 microglia co-cultures upon LPS- and IFN-γ-induced neuroinflammation. Furthermore, both HMI-1a3 and HMI-1b11 increased the levels of sAPPα relative to total sAPP and the ratio of Aβ42/Aβ40 in human SH-SY5Y neuroblastoma cells. Finally, bryostatin-1, but not HMI-1a3, increased the number of mushroom spines in proportion to total spine density in mature mouse hippocampal neuron cultures. These results suggest that the PKC activator HMI-1a3 exerts neuroprotective functions in the in vitro models relevant for AD by reducing the production of TNFα and increasing the secretion of neuroprotective sAPPα.
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Affiliation(s)
- T Sarajärvi
- Institute of Biomedicine, University of Eastern Finland, Kuopio, Finland
| | - M Jäntti
- Drug Research Program and Division of Pharmacology and Pharmacotherapy, Faculty of Pharmacy, University of Helsinki, Helsinki, Finland
| | - K M A Paldanius
- Institute of Biomedicine, University of Eastern Finland, Kuopio, Finland
| | - T Natunen
- Institute of Biomedicine, University of Eastern Finland, Kuopio, Finland
| | - J C Wu
- Institute of Biomedicine, University of Eastern Finland, Kuopio, Finland
| | - P Mäkinen
- Institute of Biomedicine, University of Eastern Finland, Kuopio, Finland
| | - I Tarvainen
- Drug Research Program and Division of Pharmacology and Pharmacotherapy, Faculty of Pharmacy, University of Helsinki, Helsinki, Finland
| | - R K Tuominen
- Drug Research Program and Division of Pharmacology and Pharmacotherapy, Faculty of Pharmacy, University of Helsinki, Helsinki, Finland.
| | - V Talman
- Drug Research Program and Division of Pharmacology and Pharmacotherapy, Faculty of Pharmacy, University of Helsinki, Helsinki, Finland
| | - M Hiltunen
- Institute of Biomedicine, University of Eastern Finland, Kuopio, Finland.
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Kumari K, Koivisto H, Viluksela M, Paldanius KMA, Marttinen M, Hiltunen M, Naarala J, Tanila H, Juutilainen J. Behavioral testing of mice exposed to intermediate frequency magnetic fields indicates mild memory impairment. PLoS One 2017; 12:e0188880. [PMID: 29206232 PMCID: PMC5714647 DOI: 10.1371/journal.pone.0188880] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2017] [Accepted: 11/14/2017] [Indexed: 12/27/2022] Open
Abstract
Human exposure to intermediate frequency magnetic fields (MF) is increasing due to applications like electronic article surveillance systems and induction heating cooking hobs. However, limited data is available on their possible health effects. The present study assessed behavioral and histopathological consequences of exposing mice to 7.5 kHz MF at 12 or 120 μT for 5 weeks. No effects were observed on body weight, spontaneous activity, motor coordination, level of anxiety or aggression. In the Morris swim task, mice in the 120 μT group showed less steep learning curve than the other groups, but did not differ from controls in their search bias in the probe test. The passive avoidance task indicated a clear impairment of memory over 48 h in the 120 μT group. No effects on astroglial activation or neurogenesis were observed in the hippocampus. The mRNA expression of brain-derived neurotrophic factor did not change but expression of the proinflammatory cytokine tumor necrosis factor alpha mRNA was significantly increased in the 120 μT group. These findings suggest that 7.5 kHz MF exposure may lead to mild learning and memory impairment, possibly through an inflammatory reaction in the hippocampus.
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Affiliation(s)
- Kajal Kumari
- Department of Environmental and Biological Sciences, University of Eastern Finland, Kuopio, Finland
- * E-mail:
| | | | - Matti Viluksela
- Department of Environmental and Biological Sciences, University of Eastern Finland, Kuopio, Finland
- National Institute for Health and Welfare, Environmental Health Unit, Kuopio, Finland
| | | | - Mikael Marttinen
- Institute of Biomedicine, University of Eastern Finland, Kuopio, Finland
| | - Mikko Hiltunen
- Institute of Biomedicine, University of Eastern Finland, Kuopio, Finland
| | - Jonne Naarala
- Department of Environmental and Biological Sciences, University of Eastern Finland, Kuopio, Finland
| | - Heikki Tanila
- A. I. Virtanen Institute, University of Eastern Finland, Kuopio, Finland
| | - Jukka Juutilainen
- Department of Environmental and Biological Sciences, University of Eastern Finland, Kuopio, Finland
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Martiskainen H, Paldanius KMA, Natunen T, Takalo M, Marttinen M, Leskelä S, Huber N, Mäkinen P, Bertling E, Dhungana H, Huuskonen M, Honkakoski P, Hotulainen P, Rilla K, Koistinaho J, Soininen H, Malm T, Haapasalo A, Hiltunen M. DHCR24 exerts neuroprotection upon inflammation-induced neuronal death. J Neuroinflammation 2017; 14:215. [PMID: 29115990 PMCID: PMC5678793 DOI: 10.1186/s12974-017-0991-6] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2017] [Accepted: 10/30/2017] [Indexed: 12/28/2022] Open
Abstract
BACKGROUND DHCR24, involved in the de novo synthesis of cholesterol and protection of neuronal cells against different stress conditions, has been shown to be selectively downregulated in neurons of the affected brain areas in Alzheimer's disease. METHODS Here, we investigated whether the overexpression of DHCR24 protects neurons against inflammation-induced neuronal death using co-cultures of mouse embryonic primary cortical neurons and BV2 microglial cells upon acute neuroinflammation. Moreover, the effects of DHCR24 overexpression on dendritic spine density and morphology in cultured mature mouse hippocampal neurons and on the outcome measures of ischemia-induced brain damage in vivo in mice were assessed. RESULTS Overexpression of DHCR24 reduced the loss of neurons under inflammation elicited by LPS and IFN-γ treatment in co-cultures of mouse neurons and BV2 microglial cells but did not affect the production of neuroinflammatory mediators, total cellular cholesterol levels, or the activity of proteins linked with neuroprotective signaling. Conversely, the levels of post-synaptic cell adhesion protein neuroligin-1 were significantly increased upon the overexpression of DHCR24 in basal growth conditions. Augmentation of DHCR24 also increased the total number of dendritic spines and the proportion of mushroom spines in mature mouse hippocampal neurons. In vivo, overexpression of DHCR24 in striatum reduced the lesion size measured by MRI in a mouse model of transient focal ischemia. CONCLUSIONS These results suggest that the augmentation of DHCR24 levels provides neuroprotection in acute stress conditions, which lead to neuronal loss in vitro and in vivo.
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Affiliation(s)
- Henna Martiskainen
- Institute of Biomedicine, University of Eastern Finland, P.O. Box 1627, FI-70211, Kuopio, Finland
| | - Kaisa M A Paldanius
- Institute of Biomedicine, University of Eastern Finland, P.O. Box 1627, FI-70211, Kuopio, Finland
| | - Teemu Natunen
- Institute of Biomedicine, University of Eastern Finland, P.O. Box 1627, FI-70211, Kuopio, Finland
| | - Mari Takalo
- Institute of Biomedicine, University of Eastern Finland, P.O. Box 1627, FI-70211, Kuopio, Finland
| | - Mikael Marttinen
- Institute of Biomedicine, University of Eastern Finland, P.O. Box 1627, FI-70211, Kuopio, Finland
| | - Stina Leskelä
- A.I. Virtanen Institute for Molecular Sciences, University of Eastern Finland, P.O. Box 1627, FI-70211, Kuopio, Finland
| | - Nadine Huber
- A.I. Virtanen Institute for Molecular Sciences, University of Eastern Finland, P.O. Box 1627, FI-70211, Kuopio, Finland
| | - Petra Mäkinen
- Institute of Biomedicine, University of Eastern Finland, P.O. Box 1627, FI-70211, Kuopio, Finland
| | - Enni Bertling
- Minerva Foundation Institute for Medical Research, Helsinki, Finland
| | - Hiramani Dhungana
- A.I. Virtanen Institute for Molecular Sciences, University of Eastern Finland, P.O. Box 1627, FI-70211, Kuopio, Finland
| | - Mikko Huuskonen
- A.I. Virtanen Institute for Molecular Sciences, University of Eastern Finland, P.O. Box 1627, FI-70211, Kuopio, Finland
| | - Paavo Honkakoski
- School of Pharmacy, University of Eastern Finland, Kuopio, Finland
| | - Pirta Hotulainen
- Minerva Foundation Institute for Medical Research, Helsinki, Finland
| | - Kirsi Rilla
- Institute of Biomedicine, University of Eastern Finland, P.O. Box 1627, FI-70211, Kuopio, Finland
| | - Jari Koistinaho
- A.I. Virtanen Institute for Molecular Sciences, University of Eastern Finland, P.O. Box 1627, FI-70211, Kuopio, Finland
| | - Hilkka Soininen
- Institute of Clinical Medicine - Neurology, University of Eastern Finland, Kuopio, Finland.,Department of Neurology, Kuopio University Hospital, Kuopio, Finland
| | - Tarja Malm
- A.I. Virtanen Institute for Molecular Sciences, University of Eastern Finland, P.O. Box 1627, FI-70211, Kuopio, Finland
| | - Annakaisa Haapasalo
- A.I. Virtanen Institute for Molecular Sciences, University of Eastern Finland, P.O. Box 1627, FI-70211, Kuopio, Finland. .,Department of Neurology, Kuopio University Hospital, Kuopio, Finland.
| | - Mikko Hiltunen
- Institute of Biomedicine, University of Eastern Finland, P.O. Box 1627, FI-70211, Kuopio, Finland. .,Department of Neurology, Kuopio University Hospital, Kuopio, Finland.
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