1
|
Zhang J, Cui X, Zhao S, Chang Z, Zhang J, Chen Y, Liu J, Sun G, Wang Y, Liu Y. Establishment of a pharmacokinetics and pharmacodynamics model of Schisandra lignans against hippocampal neurotransmitters in AD rats based on microdi-alysis liquid chromatography-mass spectrometry. Front Pharmacol 2024; 15:1342121. [PMID: 38529184 PMCID: PMC10961592 DOI: 10.3389/fphar.2024.1342121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Accepted: 02/20/2024] [Indexed: 03/27/2024] Open
Abstract
Objective: Our previous studies substantiated that the biological activity of Schisandra chinensis lignans during the treatment of Alzheimer's disease (AD) was mediated by neurotransmitter levels, and 15 of its active components were identified. However, the pharmacokinetic and pharmacodynamic relationship of Schisandra chinensis lignans has been less studied. The objective of this study was to investigate the relationship between the pharmacokinetics and pharmacodynamics of Schisandra chinensis lignans in the treatment of AD, and to establish a pharmacokinetic-pharmacodynamic (PK-PD) model. Methods and Results: Herein, we established a microdialysis-ultra performance liquid chromatography-triple quadruple mass spectrometry (MD-LC-TQ-MS) technique that could simultaneously and continuously collect and quantitatively analyze the active compounds and neurotransmitters related to the therapeutic effects of Schisandra chinensis in awake AD rats. Eight lignans were detected in the hippocampus, and a PK-PD model was established. The fitted curves highlighted a temporal lag between the maximum drug concentration and the peak drug effect. Following treatment, the levels of four neurotransmitters tended to converge with those observed in the sham operation group. Conclusion: By establishing a comprehensive concentration-time-effect relationship for Schisandra chinensis lignans in AD treatment, our study provides novel insights into the in vivo effects of these lignans in AD rats.
Collapse
Affiliation(s)
- Jinpeng Zhang
- Department of Pharmaceutical Analysis, College of Pharmacy, Shandong First Medical University and Shandong Academy of Medical Sciences, Taian, China
- Qian Xi Nan Maternal and Child Care Hospital, Xingyi, China
| | - Xinyuan Cui
- Department of Pharmaceutical Analysis, College of Pharmacy, Shandong First Medical University and Shandong Academy of Medical Sciences, Taian, China
| | - Shuo Zhao
- Department of Pharmaceutical Analysis, College of Pharmacy, Shandong First Medical University and Shandong Academy of Medical Sciences, Taian, China
| | - Zenghui Chang
- Department of Pharmaceutical Analysis, College of Pharmacy, Shandong First Medical University and Shandong Academy of Medical Sciences, Taian, China
| | - Junshuo Zhang
- Department of Pharmaceutical Analysis, College of Pharmacy, Shandong First Medical University and Shandong Academy of Medical Sciences, Taian, China
| | - Yufeng Chen
- Department of Pharmaceutical Analysis, College of Pharmacy, Shandong First Medical University and Shandong Academy of Medical Sciences, Taian, China
| | - Jiale Liu
- Department of Pharmaceutical Analysis, College of Pharmacy, Shandong First Medical University and Shandong Academy of Medical Sciences, Taian, China
| | - Guohao Sun
- Department of Pharmaceutical Analysis, College of Pharmacy, Shandong First Medical University and Shandong Academy of Medical Sciences, Taian, China
| | - Yiyuan Wang
- Department of Pharmaceutical Analysis, College of Pharmacy, Shandong First Medical University and Shandong Academy of Medical Sciences, Taian, China
| | - Yuanyuan Liu
- Department of Pharmaceutical Analysis, College of Pharmacy, Shandong First Medical University and Shandong Academy of Medical Sciences, Taian, China
| |
Collapse
|
2
|
Zhang H, Hu S, Yang P, Long H, Ma Q, Yin D, Xu G. HDAC9-mediated calmodulin deacetylation induces memory impairment in Alzheimer's disease. CNS Neurosci Ther 2024; 30:e14573. [PMID: 38421101 PMCID: PMC10850929 DOI: 10.1111/cns.14573] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Revised: 11/20/2023] [Accepted: 12/04/2023] [Indexed: 03/02/2024] Open
Abstract
AIMS Alzheimer's disease (AD) is a neurodegenerative disease characterized by progressive cognitive dysfunction and memory impairment. AD pathology involves protein acetylation. Previous studies have mainly focused on histone acetylation in AD, however, the roles of nonhistone acetylation in AD are less explored. METHODS The protein acetylation and expression levels were detected by western blotting and co-immunoprecipitation. The stoichiometry of acetylation was measured by home-made and site-specific antibodies against acetylated-CaM (Ac-CaM) at K22, K95, and K116. Hippocampus-dependent learning and memory were evaluated by using the Morris water maze, novel object recognition, and contextual fear conditioning tests. RESULTS We showed that calmodulin (CaM) acetylation is reduced in plasma of AD patients and mice. CaM acetylation and its target Ca2+ /CaM-dependent kinase II α (CaMKIIα) activity were severely impaired in AD mouse brain. The stoichiometry showed that Ac-K22, K95-CaM acetylation were decreased in AD patients and mice. Moreover, we screened and identified that lysine deacetylase 9 (HDAC9) was the main deacetylase for CaM. In addition, HDAC9 inhibition increased CaM acetylation and CaMKIIα activity, and hippocampus-dependent memory in AD mice. CONCLUSIONS HDAC9-mediated CaM deacetylation induces memory impairment in AD, HDAC9, or CaM acetylation may become potential therapeutic targets for AD.
Collapse
Affiliation(s)
- Hai‐Long Zhang
- Jiangsu Key Laboratory of Neuropsychiatric Diseases, Institute of NeuroscienceSuzhou Medical College of Soochow University, Medical Center of Soochow UniversitySuzhouChina
| | - Shufen Hu
- Jiangsu Key Laboratory of Neuropsychiatric Diseases, Institute of NeuroscienceSuzhou Medical College of Soochow University, Medical Center of Soochow UniversitySuzhouChina
| | - Pin Yang
- Key Laboratory of Brain Functional Genomics, Ministry of Education and Shanghai, School of Life ScienceEast China Normal UniversityShanghaiChina
| | - Han‐Chun Long
- Department of NeurologyThe Affiliated Xingyi City Hospital of Guizhou Medical UniversityXingyiChina
| | - Quan‐Hong Ma
- Jiangsu Key Laboratory of Neuropsychiatric Diseases, Institute of NeuroscienceSuzhou Medical College of Soochow University, Medical Center of Soochow UniversitySuzhouChina
| | - Dong‐Min Yin
- Key Laboratory of Brain Functional Genomics, Ministry of Education and Shanghai, School of Life ScienceEast China Normal UniversityShanghaiChina
| | - Guang‐Yin Xu
- Jiangsu Key Laboratory of Neuropsychiatric Diseases, Institute of NeuroscienceSuzhou Medical College of Soochow University, Medical Center of Soochow UniversitySuzhouChina
| |
Collapse
|
3
|
Milham LT, Morris GP, Konen LM, Rentsch P, Avgan N, Vissel B. Quantification of AMPA receptor subunits and RNA editing-related proteins in the J20 mouse model of Alzheimer's disease by capillary western blotting. Front Mol Neurosci 2024; 16:1338065. [PMID: 38299128 PMCID: PMC10828003 DOI: 10.3389/fnmol.2023.1338065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Accepted: 12/29/2023] [Indexed: 02/02/2024] Open
Abstract
Introduction Accurate modelling of molecular changes in Alzheimer's disease (AD) dementia is crucial for understanding the mechanisms driving neuronal pathology and for developing treatments. Synaptic dysfunction has long been implicated as a mechanism underpinning memory dysfunction in AD and may result in part from changes in adenosine deaminase acting on RNA (ADAR) mediated RNA editing of the GluA2 subunit of AMPA receptors and changes in AMPA receptor function at the post synaptic cleft. However, few studies have investigated changes in proteins which influence RNA editing and notably, AD studies that focus on studying changes in protein expression, rather than changes in mRNA, often use traditional western blotting. Methods Here, we demonstrate the value of automated capillary western blotting to investigate the protein expression of AMPA receptor subunits (GluA1-4), the ADAR RNA editing proteins (ADAR1-3), and proteins known to regulate RNA editing (PIN1, WWP2, FXR1P, and CREB1), in the J20 AD mouse model. We describe extensive optimisation and validation of the automated capillary western blotting method, demonstrating the use of total protein to normalise protein load, in addition to characterising the optimal protein/antibody concentrations to ensure accurate protein quantification. Following this, we assessed changes in proteins of interest in the hippocampus of 44-week-old J20 AD mice. Results We observed an increase in the expression of ADAR1 p110 and GluA3 and a decrease in ADAR2 in the hippocampus of 44-week-old J20 mice. These changes signify a shift in the balance of proteins that play a critical role at the synapse. Regression analysis revealed unique J20-specific correlations between changes in AMPA receptor subunits, ADAR enzymes, and proteins that regulate ADAR stability in J20 mice, highlighting potential mechanisms mediating RNA-editing changes found in AD. Discussion Our findings in J20 mice generally reflect changes seen in the human AD brain. This study underlines the importance of novel techniques, like automated capillary western blotting, to assess protein expression in AD. It also provides further evidence to support the hypothesis that a dysregulation in RNA editing-related proteins may play a role in the initiation and/or progression of AD.
Collapse
Affiliation(s)
- Luke T. Milham
- Centre for Neuroscience and Regenerative Medicine, St Vincent’s Centre for Applied Medical Research, St Vincent’s Hospital, Sydney, NSW, Australia
- St Vincent’s Clinical School, Faculty of Medicine, University of New South Wales, Sydney, NSW, Australia
| | - Gary P. Morris
- Centre for Neuroscience and Regenerative Medicine, St Vincent’s Centre for Applied Medical Research, St Vincent’s Hospital, Sydney, NSW, Australia
- Tasmanian School of Medicine, College of Health and Medicine, University of Tasmania, Hobart, TAS, Australia
| | - Lyndsey M. Konen
- Centre for Neuroscience and Regenerative Medicine, St Vincent’s Centre for Applied Medical Research, St Vincent’s Hospital, Sydney, NSW, Australia
| | - Peggy Rentsch
- Centre for Neuroscience and Regenerative Medicine, St Vincent’s Centre for Applied Medical Research, St Vincent’s Hospital, Sydney, NSW, Australia
- St Vincent’s Clinical School, Faculty of Medicine, University of New South Wales, Sydney, NSW, Australia
| | - Nesli Avgan
- Centre for Neuroscience and Regenerative Medicine, St Vincent’s Centre for Applied Medical Research, St Vincent’s Hospital, Sydney, NSW, Australia
| | - Bryce Vissel
- Centre for Neuroscience and Regenerative Medicine, St Vincent’s Centre for Applied Medical Research, St Vincent’s Hospital, Sydney, NSW, Australia
- St Vincent’s Clinical School, Faculty of Medicine, University of New South Wales, Sydney, NSW, Australia
| |
Collapse
|
4
|
Dhapola R, Kumari S, Sharma P, HariKrishnaReddy D. Insight into the emerging and common experimental in-vivo models of Alzheimer's disease. Lab Anim Res 2023; 39:33. [PMID: 38082453 PMCID: PMC10712122 DOI: 10.1186/s42826-023-00184-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2023] [Revised: 11/21/2023] [Accepted: 12/04/2023] [Indexed: 05/30/2024] Open
Abstract
Alzheimer's disease (AD) is a multifactorial, rapidly progressing neurodegenerative disorder. As the exact cause of the disease is still unclear, the drug development is very challenging. This review encompasses the commonly used AD models involving various chemicals, heavy metals and endogenous substances induced models and the transgenic models. It also provides insight into the reliable emerging models of AD that may overcome the shortcomings associated with available models. Chemicals like streptozotocin, scopolamine, colchicine and okadaic acid render the animal susceptible to neuroinflammation and oxidative stress induced neurodegeneration along with amyloid-β deposition and tau hyperphosphorylation. Similarly, endogenous substances like acrolein and amyloid-β 1-42 are efficient in inducing the major pathologies of AD. Heavy metals like aluminum and fluoride and mixture of these have been reported to induce neurotoxicity therefore are used as animal models for AD. Transgenic models developed as a result of knock-in or knock-out of certain genes associated with AD including PDAPP, APP23, Tg2576, APP/PS1, 3 × Tg and 5 × FAD have also been incorporated in this study. Further, emerging and advanced pathomimetic models of AD are provided particular interest here which will add on to the current knowledge of animal models and may aid in the drug development process and deepen our understanding related to AD pathogenesis. These newly discovered models include oAβ25-35 model, transgenic model expressing 82-kDa ChAT, oDGal mouse and APP knock-in rat. This study may aid in the selection of suitable model for development of novel potent therapeutics and for exploring detailed pathogenic mechanism of AD.
Collapse
Affiliation(s)
- Rishika Dhapola
- Department of Pharmacology, School of Health Sciences, Central University of Punjab, Ghudda, Bathinda, Punjab, 151401, India
| | - Sneha Kumari
- Department of Pharmacology, School of Health Sciences, Central University of Punjab, Ghudda, Bathinda, Punjab, 151401, India
| | - Prajjwal Sharma
- Department of Pharmacology, School of Health Sciences, Central University of Punjab, Ghudda, Bathinda, Punjab, 151401, India
| | - Dibbanti HariKrishnaReddy
- Department of Pharmacology, School of Health Sciences, Central University of Punjab, Ghudda, Bathinda, Punjab, 151401, India.
| |
Collapse
|
5
|
Sharma H, Chang KA, Hulme J, An SSA. Mammalian Models in Alzheimer's Research: An Update. Cells 2023; 12:2459. [PMID: 37887303 PMCID: PMC10605533 DOI: 10.3390/cells12202459] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2023] [Revised: 10/09/2023] [Accepted: 10/10/2023] [Indexed: 10/28/2023] Open
Abstract
A form of dementia distinct from healthy cognitive aging, Alzheimer's disease (AD) is a complex multi-stage disease that currently afflicts over 50 million people worldwide. Unfortunately, previous therapeutic strategies developed from murine models emulating different aspects of AD pathogenesis were limited. Consequently, researchers are now developing models that express several aspects of pathogenesis that better reflect the clinical situation in humans. As such, this review seeks to provide insight regarding current applications of mammalian models in AD research by addressing recent developments and characterizations of prominent transgenic models and their contributions to pathogenesis as well as discuss the advantages, limitations, and application of emerging models that better capture genetic heterogeneity and mixed pathologies observed in the clinical situation.
Collapse
Affiliation(s)
- Himadri Sharma
- Department of Bionano Technology, Gachon Bionano Research Institute, Gachon University, 1342 Seongnam-daero, Sujeong-gu, Seongnam-si 461-701, Gyeonggi-do, Republic of Korea
| | - Keun-A Chang
- Neuroscience Research Institute, Gachon University, Incheon 21565, Republic of Korea
| | - John Hulme
- Department of Bionano Technology, Gachon Bionano Research Institute, Gachon University, 1342 Seongnam-daero, Sujeong-gu, Seongnam-si 461-701, Gyeonggi-do, Republic of Korea
| | - Seong Soo A. An
- Department of Bionano Technology, Gachon Bionano Research Institute, Gachon University, 1342 Seongnam-daero, Sujeong-gu, Seongnam-si 461-701, Gyeonggi-do, Republic of Korea
| |
Collapse
|
6
|
Lanooij SD, Drinkenburg WHIM, Eisel ULM, van der Zee EA, Kas MJH. The effects of social environment on AD-related pathology in hAPP-J20 mice and tau-P301L mice. Neurobiol Dis 2023; 187:106309. [PMID: 37748620 DOI: 10.1016/j.nbd.2023.106309] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Revised: 09/20/2023] [Accepted: 09/22/2023] [Indexed: 09/27/2023] Open
Abstract
In humans, social factors (e.g., loneliness) have been linked to the risk of developing Alzheimer's Disease (AD). To date, AD pathology is primarily characterized by amyloid-β plaques and tau tangles. We aimed to assess the effect of single- and group-housing on AD-related pathology in a mouse model for amyloid pathology (J20, and WT controls) and a mouse model for tau pathology (P301L) with and without seeding of synthetic human tau fragments (K18). Female mice were either single housed (SH) or group housed (GH) from the age of 6-7 weeks onwards. In 12-week-old P301L mice, tau pathology was induced through seeding by injecting K18 into the dorsal hippocampus (P301LK18), while control mice received a PBS injection (P301LPBS). P301L mice were sacrificed at 4 months of age and J20 mice at 10 months of age. In all mice brain pathology was histologically assessed by examining microglia, the CA1 pyramidal cell layer and specific AD pathology: analysis of plaques in J20 mice and tau hyperphosphorylation in P301L mice. Contrary to our expectation, SH-J20 mice interestingly displayed fewer plaques in the hippocampus compared to GH-J20 mice. However, housing did not affect tau hyperphosphorylation at Ser202/Thr205 of P301L mice, nor neuronal cell death in the CA1 region in any of the mice. The number of microglia was increased by the J20 genotype, and their activation (based on cell body to cell size ratio) in the CA1 was affected by genotype and housing condition (interaction effect). Single housing of P301L mice was linked to the development of stereotypic behavior (i.e. somersaulting and circling behavior). In P301LK18 mice, an increased number of microglia were observed, among which were rod microglia. Taken together, our findings point to a significant effect of social housing conditions on amyloid plaques and microglia in J20 mice and on the development of stereotypic behavior in P301L mice, indicating that the social environment can modulate AD-related pathology.
Collapse
Affiliation(s)
- Suzanne D Lanooij
- Groningen Institute for Evolutionary Life Sciences (GELIFES), Neurobiology, University of Groningen, Nijenborgh 7, 9747, AG, Groningen, the Netherlands.
| | - W H I M Drinkenburg
- Groningen Institute for Evolutionary Life Sciences (GELIFES), Neurobiology, University of Groningen, Nijenborgh 7, 9747, AG, Groningen, the Netherlands; Department of Neuroscience, Janssen Research & Development, a Division on Janssen Pharmaceutica NV, Turnhoutseweg 30, B-2340 Beerse, Belgium.
| | - U L M Eisel
- Groningen Institute for Evolutionary Life Sciences (GELIFES), Neurobiology, University of Groningen, Nijenborgh 7, 9747, AG, Groningen, the Netherlands.
| | - E A van der Zee
- Groningen Institute for Evolutionary Life Sciences (GELIFES), Neurobiology, University of Groningen, Nijenborgh 7, 9747, AG, Groningen, the Netherlands.
| | - Martien J H Kas
- Groningen Institute for Evolutionary Life Sciences (GELIFES), Neurobiology, University of Groningen, Nijenborgh 7, 9747, AG, Groningen, the Netherlands.
| |
Collapse
|
7
|
Oroszi T, Geerts E, Rajadhyaksha R, Nyakas C, van Heuvelen MJG, van der Zee EA. Whole-body vibration ameliorates glial pathological changes in the hippocampus of hAPP transgenic mice, but does not affect plaque load. BEHAVIORAL AND BRAIN FUNCTIONS : BBF 2023; 19:5. [PMID: 36941713 PMCID: PMC10026461 DOI: 10.1186/s12993-023-00208-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Accepted: 03/02/2023] [Indexed: 03/23/2023]
Abstract
BACKGROUND Alzheimer's disease (AD) is the core cause of dementia in elderly populations. One of the main hallmarks of AD is extracellular amyloid beta (Aβ) accumulation (APP-pathology) associated with glial-mediated neuroinflammation. Whole-Body Vibration (WBV) is a passive form of exercise, but its effects on AD pathology are still unknown. METHODS Five months old male J20 mice (n = 26) and their wild type (WT) littermates (n = 24) were used to investigate the effect of WBV on amyloid pathology and the healthy brain. Both J20 and WT mice underwent WBV on a vibration platform or pseudo vibration treatment. The vibration intervention consisted of 2 WBV sessions of 10 min per day, five days per week for five consecutive weeks. After five weeks of WBV, the balance beam test was used to assess motor performance. Brain tissue was collected to quantify Aβ deposition and immunomarkers of astrocytes and microglia. RESULTS J20 mice have a limited number of plaques at this relatively young age. Amyloid plaque load was not affected by WBV. Microglia activation based on IBA1-immunostaining was significantly increased in the J20 animals compared to the WT littermates, whereas CD68 expression was not significantly altered. WBV treatment was effective to ameliorate microglia activation based on morphology in both J20 and WT animals in the Dentate Gyrus, but not so in the other subregions. Furthermore, GFAP expression based on coverage was reduced in J20 pseudo-treated mice compared to the WT littermates and it was significantly reserved in the J20 WBV vs. pseudo-treated animals. Further, only for the WT animals a tendency of improved motor performance was observed in the WBV group compared to the pseudo vibration group. CONCLUSION In accordance with the literature, we detected an early plaque load, reduced GFAP expression and increased microglia activity in J20 mice at the age of ~ 6 months. Our findings indicate that WBV has beneficial effects on the early progression of brain pathology. WBV restored, above all, the morphology of GFAP positive astrocytes to the WT level that could be considered the non-pathological and hence "healthy" level. Next experiments need to be performed to determine whether WBV is also affective in J20 mice of older age or other AD mouse models.
Collapse
Affiliation(s)
- Tamas Oroszi
- Department of Neurobiology, Groningen Institute for Evolutionary Life Sciences (GELIFES), University of Groningen, Nijenborgh 7, 9747 AG, Groningen, The Netherlands.
- Research Center for Molecular Exercise Science, Hungarian University of Sports Science, Budapest, Hungary.
| | - Eva Geerts
- Department of Neurobiology, Groningen Institute for Evolutionary Life Sciences (GELIFES), University of Groningen, Nijenborgh 7, 9747 AG, Groningen, The Netherlands
| | - Reuben Rajadhyaksha
- Department of Neurobiology, Groningen Institute for Evolutionary Life Sciences (GELIFES), University of Groningen, Nijenborgh 7, 9747 AG, Groningen, The Netherlands
| | - Csaba Nyakas
- Research Center for Molecular Exercise Science, Hungarian University of Sports Science, Budapest, Hungary
- Department of Morphology and Physiology, Health Science Faculty, Semmelweis Univesity, Budapest, Hungary
| | - Marieke J G van Heuvelen
- Department of Human Movement Sciences, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Eddy A van der Zee
- Department of Neurobiology, Groningen Institute for Evolutionary Life Sciences (GELIFES), University of Groningen, Nijenborgh 7, 9747 AG, Groningen, The Netherlands
| |
Collapse
|
8
|
Dhungana A, Becchi S, Leake J, Morris G, Avgan N, Balleine BW, Vissel B, Bradfield LA. Goal-Directed Action Is Initially Impaired in a hAPP-J20 Mouse Model of Alzheimer's Disease. eNeuro 2023; 10:ENEURO.0363-22.2023. [PMID: 36650070 PMCID: PMC9927544 DOI: 10.1523/eneuro.0363-22.2023] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2022] [Revised: 12/12/2022] [Accepted: 01/03/2023] [Indexed: 01/19/2023] Open
Abstract
Cognitive-behavioral testing in preclinical models of Alzheimer's disease has failed to capture deficits in goal-directed action control. Here, we provide the first comprehensive investigation of goal-directed action in a transgenic mouse model of Alzheimer's disease. Specifically, we tested outcome devaluation performance in male and female human amyloid precursor protein (hAPP)-J20 mice. Mice were first trained to press left and right levers for pellet and sucrose outcomes, respectively (counterbalanced), over 4 d. On test, mice were prefed one of the outcomes to satiety and given a choice between levers. Devaluation performance was intact for 36-week-old wild-types of both sexes, who responded more on the valued relative to the devalued lever (Valued > Devalued). By contrast, devaluation was impaired (Valued = Devalued) for J20 mice of both sexes, and for 52-week-old male mice regardless of genotype. After additional lever press training (i.e., 8-d lever pressing in total), devaluation was intact for all mice, demonstrating that the initial deficits were not a result of a nonspecific impairment in reward processing, depression, or locomotor activity in J20 or aging mice. Follow-up analyses revealed that microglial expression in the dorsal CA1 region of the hippocampus was associated with poorer outcome devaluation performance on initial, but not later tests. Together, these data demonstrate that goal-directed action is initially impaired in J20 mice of both sexes and in aging male mice regardless of genotype, and that this impairment is related to neuroinflammation in the dorsal CA1 hippocampal region.
Collapse
Affiliation(s)
- Amolika Dhungana
- School of Life Sciences, Faculty of Science, University of Technology Sydney, Sydney, New South Wales 2007, Australia
- Centre for Neuroscience and Regenerative Medicine, St. Vincent's Centre for Applied Medical Research, St. Vincent's Health Network, Sydney, New South Wales 2010, Australia
| | - Serena Becchi
- School of Psychology, University of New South Wales Sydney, Sydney, New South Wales 2052, Australia
| | - Jessica Leake
- School of Life Sciences, Faculty of Science, University of Technology Sydney, Sydney, New South Wales 2007, Australia
- Centre for Neuroscience and Regenerative Medicine, St. Vincent's Centre for Applied Medical Research, St. Vincent's Health Network, Sydney, New South Wales 2010, Australia
- School of Psychology, University of New South Wales Sydney, Sydney, New South Wales 2052, Australia
| | - Gary Morris
- School of Life Sciences, Faculty of Science, University of Technology Sydney, Sydney, New South Wales 2007, Australia
- Centre for Neuroscience and Regenerative Medicine, St. Vincent's Centre for Applied Medical Research, St. Vincent's Health Network, Sydney, New South Wales 2010, Australia
- Tasmanian School of Medicine, College of Health and Medicine, University of Tasmania, Hobart, Tasmania 7000, Australia
| | - Nesli Avgan
- Centre for Neuroscience and Regenerative Medicine, St. Vincent's Centre for Applied Medical Research, St. Vincent's Health Network, Sydney, New South Wales 2010, Australia
| | - Bernard W Balleine
- Decision Neuroscience Laboratory, School of Psychology, University of New South Wales Sydney, Sydney, New South Wales 2052, Australia
| | - Bryce Vissel
- Centre for Neuroscience and Regenerative Medicine, St. Vincent's Centre for Applied Medical Research, St. Vincent's Health Network, Sydney, New South Wales 2010, Australia
- School of Clinical Medicine, University of New South Wales Medicine & Health, St Vincent's Healthcare Clinical Campus, Faculty of Medicine and Health, University of New South Wales Sydney, Sydney, New South Wales 2052, Australia
| | - Laura A Bradfield
- School of Life Sciences, Faculty of Science, University of Technology Sydney, Sydney, New South Wales 2007, Australia
- Centre for Neuroscience and Regenerative Medicine, St. Vincent's Centre for Applied Medical Research, St. Vincent's Health Network, Sydney, New South Wales 2010, Australia
| |
Collapse
|
9
|
Shibly AZ, Sheikh AM, Michikawa M, Tabassum S, Azad AK, Zhou X, Zhang Y, Yano S, Nagai A. Analysis of Cerebral Small Vessel Changes in AD Model Mice. Biomedicines 2022; 11:50. [PMID: 36672558 PMCID: PMC9855388 DOI: 10.3390/biomedicines11010050] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Revised: 12/19/2022] [Accepted: 12/21/2022] [Indexed: 12/28/2022] Open
Abstract
Amyloid β (Aβ) peptide is deposited in the brains of sporadic Alzheimer's disease (AD) due to impaired vessel-dependent clearance. To understand the mechanisms, we investigated time-dependent cerebrovascular changes in AD model mice. Cerebrovascular and other pathological changes were analyzed in AD model mice (J20 strain) aging from 2 to 9 months by immunostaining. At 2 months, Aβ was only intraneuronal, whereas vessels were positive from 3 months in J20 mice. Compared to wild-type (WT), vessel density was increased at 2 months but decreased at 9 months in J20 mice, claudin-5 levels were decreased, and vascular endothelial growth factor (VEGF) levels were increased in the cortex and hippocampus of J20 mice brain at all time points. Albumin extravasation was evident from 3 months in J20 brains. Collagen 4 was increased at 2 and 3 months. Aquaporin 4 was spread beyond the vessels starting from 3 months in J20, which was restricted around the vessel in wild-type mice. In conclusion, the study showed that an early decrease in claudin-5 was associated with VEGF expression, indicating dysfunction of the blood-brain barrier. Decreased claudin-5 might cause the leakage of blood constituents into the parenchyma that alters astrocyte polarity and its functions.
Collapse
Affiliation(s)
- Abu Zaffar Shibly
- Department of Neurology, Faculty of Medicine, Shimane University, 89-1 Enya-cho, Izumo 693-8501, Japan; (A.Z.S.); (A.K.A.); (X.Z.); (Y.Z.)
- Department of Biotechnology and Genetic Engineering, Mawlana Bhashani Science and Technology University, Santosh, Tangail 1902, Bangladesh
| | - Abdullah Md. Sheikh
- Department of Laboratory Medicine, Faculty of Medicine, Shimane University, 89-1 Enya-cho, Izumo 693-8501, Japan; (A.M.S.); (S.T.); (S.Y.)
| | - Makoto Michikawa
- Department of Biochemistry, Graduate School of Medical Sciences, Nagoya City University, Nagoya 467-8601, Japan;
| | - Shatera Tabassum
- Department of Laboratory Medicine, Faculty of Medicine, Shimane University, 89-1 Enya-cho, Izumo 693-8501, Japan; (A.M.S.); (S.T.); (S.Y.)
| | - Abul Kalam Azad
- Department of Neurology, Faculty of Medicine, Shimane University, 89-1 Enya-cho, Izumo 693-8501, Japan; (A.Z.S.); (A.K.A.); (X.Z.); (Y.Z.)
| | - Xiaojing Zhou
- Department of Neurology, Faculty of Medicine, Shimane University, 89-1 Enya-cho, Izumo 693-8501, Japan; (A.Z.S.); (A.K.A.); (X.Z.); (Y.Z.)
| | - Yuchi Zhang
- Department of Neurology, Faculty of Medicine, Shimane University, 89-1 Enya-cho, Izumo 693-8501, Japan; (A.Z.S.); (A.K.A.); (X.Z.); (Y.Z.)
| | - Shozo Yano
- Department of Laboratory Medicine, Faculty of Medicine, Shimane University, 89-1 Enya-cho, Izumo 693-8501, Japan; (A.M.S.); (S.T.); (S.Y.)
| | - Atsushi Nagai
- Department of Neurology, Faculty of Medicine, Shimane University, 89-1 Enya-cho, Izumo 693-8501, Japan; (A.Z.S.); (A.K.A.); (X.Z.); (Y.Z.)
| |
Collapse
|
10
|
Turati J, Rudi J, Beauquis J, Carniglia L, López Couselo F, Saba J, Caruso C, Saravia F, Lasaga M, Durand D. A metabotropic glutamate receptor 3 (mGlu3R) isoform playing neurodegenerative roles in astrocytes is prematurely up-regulated in an Alzheimer's model. J Neurochem 2022; 161:366-382. [PMID: 35411603 DOI: 10.1111/jnc.15610] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2021] [Revised: 03/14/2022] [Accepted: 03/23/2022] [Indexed: 12/26/2022]
Abstract
Subtype 3 metabotropic glutamate receptor (mGlu3R) displays a broad range of neuroprotective effects. We previously demonstrated that mGlu3R activation in astrocytes protects hippocampal neurons from Aβ neurotoxicity through stimulation of both neurotrophin release and Aβ uptake. Alternative-spliced variants of mGlu3R were found in human brains. The most prevalent variant, mGlu3Δ4, lacks exon 4 encoding the transmembrane domain and can inhibit ligand binding to mGlu3R. To date, neither its role in neurodegenerative disorders nor its endogenous expression in CNS cells has been addressed. The present paper describes for the first time an association between altered hippocampal expression of mGlu3Δ4 and Alzheimer's disease (AD) in the preclinical murine model PDAPP-J20, as well as a deleterious effect of mGlu3Δ4 in astrocytes. As assessed by western blot, hippocampal mGlu3R levels progressively decreased with age in PDAPP-J20 mice. On the contrary, mGlu3Δ4 levels were drastically increased with aging in nontransgenic mice, but prematurely over-expressed in 5-month-old PDAPP-J20-derived hippocampi, prior to massive senile plaque deposition. Also, we found that mGlu3Δ4 co-precipitated with mGlu3R mainly in 5-month-old PDAPP-J20 mice. We further showed by western blot that primary cultured astrocytes and neurons expressed mGlu3Δ4, whose levels were reduced by Aβ, thereby discouraging a causal effect of Aβ on mGlu3Δ4 induction. However, heterologous expression of mGlu3Δ4 in astrocytes induced cell death, inhibited mGlu3R expression, and prevented mGlu3R-dependent Aβ glial uptake. Indeed, mGlu3Δ4 promoted neurodegeneration in neuron-glia co-cultures. These results provide evidence of an inhibitory role of mGlu3Δ4 in mGlu3R-mediated glial neuroprotective pathways, which may lie behind AD onset.
Collapse
Affiliation(s)
- Juan Turati
- INBIOMED Instituto de Investigaciones Biomédicas UBA-CONICET, Facultad de Medicina, Universidad de Buenos Aires, Ciudad Autónoma de Buenos Aires, Argentina
| | - Julieta Rudi
- INBIOMED Instituto de Investigaciones Biomédicas UBA-CONICET, Facultad de Medicina, Universidad de Buenos Aires, Ciudad Autónoma de Buenos Aires, Argentina.,IATIMET Instituto Alberto C. Taquini de Investigaciones en Medicina Traslacional, Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, Ciudad Autónoma de Buenos Aires, Argentina
| | - Juan Beauquis
- Laboratorio de Neurobiología del Envejecimiento, Instituto de Biología y Medicina Experimental (IBYME), CONICET, Buenos Aires, Argentina.,Departamento de Química Biológica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires, Argentina
| | - Lila Carniglia
- INBIOMED Instituto de Investigaciones Biomédicas UBA-CONICET, Facultad de Medicina, Universidad de Buenos Aires, Ciudad Autónoma de Buenos Aires, Argentina
| | - Federico López Couselo
- INBIOMED Instituto de Investigaciones Biomédicas UBA-CONICET, Facultad de Medicina, Universidad de Buenos Aires, Ciudad Autónoma de Buenos Aires, Argentina
| | - Julieta Saba
- INBIOMED Instituto de Investigaciones Biomédicas UBA-CONICET, Facultad de Medicina, Universidad de Buenos Aires, Ciudad Autónoma de Buenos Aires, Argentina
| | - Carla Caruso
- INBIOMED Instituto de Investigaciones Biomédicas UBA-CONICET, Facultad de Medicina, Universidad de Buenos Aires, Ciudad Autónoma de Buenos Aires, Argentina
| | - Flavia Saravia
- Laboratorio de Neurobiología del Envejecimiento, Instituto de Biología y Medicina Experimental (IBYME), CONICET, Buenos Aires, Argentina.,Departamento de Química Biológica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires, Argentina
| | - Mercedes Lasaga
- INBIOMED Instituto de Investigaciones Biomédicas UBA-CONICET, Facultad de Medicina, Universidad de Buenos Aires, Ciudad Autónoma de Buenos Aires, Argentina
| | - Daniela Durand
- INBIOMED Instituto de Investigaciones Biomédicas UBA-CONICET, Facultad de Medicina, Universidad de Buenos Aires, Ciudad Autónoma de Buenos Aires, Argentina
| |
Collapse
|
11
|
Shabir O, Pendry B, Lee L, Eyre B, Sharp PS, Rebollar MA, Drew D, Howarth C, Heath PR, Wharton SB, Francis SE, Berwick J. Assessment of neurovascular coupling and cortical spreading depression in mixed mouse models of atherosclerosis and Alzheimer's disease. eLife 2022; 11:e68242. [PMID: 35014950 PMCID: PMC8752088 DOI: 10.7554/elife.68242] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Accepted: 12/17/2021] [Indexed: 12/15/2022] Open
Abstract
Neurovascular coupling is a critical brain mechanism whereby changes to blood flow accompany localised neural activity. The breakdown of neurovascular coupling is linked to the development and progression of several neurological conditions including dementia. In this study, we examined cortical haemodynamics in mouse preparations that modelled Alzheimer's disease (J20-AD) and atherosclerosis (PCSK9-ATH) between 9 and 12 m of age. We report novel findings with atherosclerosis where neurovascular decline is characterised by significantly reduced blood volume, altered levels of oxyhaemoglobin and deoxyhaemoglobin, in addition to global neuroinflammation. In the comorbid mixed model (J20-PCSK9-MIX), we report a 3 x increase in hippocampal amyloid-beta plaques. A key finding was that cortical spreading depression (CSD) due to electrode insertion into the brain was worse in the diseased animals and led to a prolonged period of hypoxia. These findings suggest that systemic atherosclerosis can be detrimental to neurovascular health and that having cardiovascular comorbidities can exacerbate pre-existing Alzheimer's-related amyloid-plaques.
Collapse
Affiliation(s)
- Osman Shabir
- Department of Infection, Immunity and Cardiovascular Disease (IICD), University of Sheffield Medical School, Royal Hallamshire HospitalSheffieldUnited Kingdom
- Healthy Lifespan Institute (HELSI), University of SheffieldSheffieldUnited Kingdom
- Neuroscience Institute, University of SheffieldSheffieldUnited Kingdom
| | - Ben Pendry
- Sheffield Institute for Translational Neuroscience (SITraN), University of SheffieldSheffieldUnited Kingdom
| | - Llywelyn Lee
- Neuroscience Institute, University of SheffieldSheffieldUnited Kingdom
- Sheffield Neurovascular Lab, Department of Psychology, University of SheffieldSheffieldUnited Kingdom
| | - Beth Eyre
- Neuroscience Institute, University of SheffieldSheffieldUnited Kingdom
- Sheffield Neurovascular Lab, Department of Psychology, University of SheffieldSheffieldUnited Kingdom
| | - Paul S Sharp
- Medicines Discovery CatapultAlderley EdgeUnited Kingdom
| | - Monica A Rebollar
- Neuroscience Institute, University of SheffieldSheffieldUnited Kingdom
- Sheffield Institute for Translational Neuroscience (SITraN), University of SheffieldSheffieldUnited Kingdom
| | - David Drew
- Department of Infection, Immunity and Cardiovascular Disease (IICD), University of Sheffield Medical School, Royal Hallamshire HospitalSheffieldUnited Kingdom
| | - Clare Howarth
- Healthy Lifespan Institute (HELSI), University of SheffieldSheffieldUnited Kingdom
- Neuroscience Institute, University of SheffieldSheffieldUnited Kingdom
- Sheffield Neurovascular Lab, Department of Psychology, University of SheffieldSheffieldUnited Kingdom
| | - Paul R Heath
- Sheffield Institute for Translational Neuroscience (SITraN), University of SheffieldSheffieldUnited Kingdom
| | - Stephen B Wharton
- Neuroscience Institute, University of SheffieldSheffieldUnited Kingdom
- Sheffield Institute for Translational Neuroscience (SITraN), University of SheffieldSheffieldUnited Kingdom
| | - Sheila E Francis
- Department of Infection, Immunity and Cardiovascular Disease (IICD), University of Sheffield Medical School, Royal Hallamshire HospitalSheffieldUnited Kingdom
- Healthy Lifespan Institute (HELSI), University of SheffieldSheffieldUnited Kingdom
- Neuroscience Institute, University of SheffieldSheffieldUnited Kingdom
| | - Jason Berwick
- Healthy Lifespan Institute (HELSI), University of SheffieldSheffieldUnited Kingdom
- Neuroscience Institute, University of SheffieldSheffieldUnited Kingdom
- Sheffield Neurovascular Lab, Department of Psychology, University of SheffieldSheffieldUnited Kingdom
| |
Collapse
|
12
|
Azad AK, Sheikh AM, Haque MA, Osago H, Sakai H, Shibly AZ, Yano S, Michikawa M, Hossain S, Tabassum S, A. G, Zhou X, Zhang Y, Nagai A. Time-Dependent Analysis of Plasmalogens in the Hippocampus of an Alzheimer's Disease Mouse Model: A Role of Ethanolamine Plasmalogen. Brain Sci 2021; 11:1603. [PMID: 34942905 PMCID: PMC8699479 DOI: 10.3390/brainsci11121603] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2021] [Revised: 11/23/2021] [Accepted: 11/29/2021] [Indexed: 12/26/2022] Open
Abstract
Plasmalogens are alkenyl-acyl glycerophospholipids and decreased in post-mortem Alzheimer's disease (AD) brains. The aim of this study is to investigate the time-dependent changes of plasmalogens in the hippocampus of an AD model mouse (J20). Plasmalogen levels at 3, 6, 9, 12 and 15 months were analyzed by liquid-chromatography-targeted-multiplexed-selected-reaction-monitoring-tandem-mass-spectrometry (LC-SRM/MS). Reactive oxygen species (ROS) levels were evaluated using dichlorofluorescein diacetate (DCF-DA). Plasmalogen synthesizing enzyme glycerone-phosphate O-acyltransferase (GNPAT) and late endosome marker Rab7 levels were quantified by Western blotting. GNPAT localization, changes of neuronal and glial cell numbers were evaluated by immunostaining. Compared to wild-type mice (WT), total plasmalogen-ethanolamine, but not plasmalogen-choline levels, were increased at 9 months and subsequently decreased at 15 months in J20 mice. A principal component analysis of plasmalogen-ethanolamine species could separate WT and J20 mice both at 9 and 15 months. Both GNPAT and Rab7 protein were increased in J20 mice at 9 months, whereas GNPAT was decreased at 15 months. ROS levels were increased in J20 mice except for 9 months. Our results suggest that increased plasmalogen-ethanolamine could counteract ROS levels and contribute to the phagocytosis process in J20 mice at 9 months. Such results might indicate a transient protective response of plasmalogen-ethanolamine in AD conditions.
Collapse
Affiliation(s)
- Abul Kalam Azad
- Department of Neurology, Faculty of Medicine, Shimane University, Izumo 693-8501, Japan; (A.K.A.); (A.Z.S.); (G.A.); (X.Z.); (Y.Z.)
- Department of Microbiology, Jagannath University, Dhaka 1100, Bangladesh
| | - Abdullah Md. Sheikh
- Department of Laboratory Medicine, Faculty of Medicine, Shimane University, Izumo 693-8501, Japan; (A.M.S.); (M.A.H.); (S.Y.); (S.T.)
| | - Md. Ahsanul Haque
- Department of Laboratory Medicine, Faculty of Medicine, Shimane University, Izumo 693-8501, Japan; (A.M.S.); (M.A.H.); (S.Y.); (S.T.)
- Department of Pharmacy, University of Asia Pacific, Dhaka 1205, Bangladesh
| | - Harumi Osago
- Department of Biochemistry, Faculty of Medicine, Shimane University, Izumo 693-8501, Japan;
| | - Hiromichi Sakai
- Department of Biosignaling and Radioisotope Experiment, Faculty of Medicine, Shimane University, Izumo 693-8501, Japan;
| | - Abu Zaffar Shibly
- Department of Neurology, Faculty of Medicine, Shimane University, Izumo 693-8501, Japan; (A.K.A.); (A.Z.S.); (G.A.); (X.Z.); (Y.Z.)
- Department of Biotechnology and Genetic Engineering, Mawlana Bhashani Science and Technology University, Tangail 1902, Bangladesh
| | - Shozo Yano
- Department of Laboratory Medicine, Faculty of Medicine, Shimane University, Izumo 693-8501, Japan; (A.M.S.); (M.A.H.); (S.Y.); (S.T.)
| | - Makoto Michikawa
- Department of Biochemistry, Graduate School of Medical Sciences, Nagoya City University, Nagoya 467-8601, Japan;
| | - Shahdat Hossain
- Department of Biochemistry and Molecular Biology, Jahangirnagar University, Dhaka 1342, Bangladesh;
| | - Shatera Tabassum
- Department of Laboratory Medicine, Faculty of Medicine, Shimane University, Izumo 693-8501, Japan; (A.M.S.); (M.A.H.); (S.Y.); (S.T.)
| | - Garu A.
- Department of Neurology, Faculty of Medicine, Shimane University, Izumo 693-8501, Japan; (A.K.A.); (A.Z.S.); (G.A.); (X.Z.); (Y.Z.)
| | - Xiaojing Zhou
- Department of Neurology, Faculty of Medicine, Shimane University, Izumo 693-8501, Japan; (A.K.A.); (A.Z.S.); (G.A.); (X.Z.); (Y.Z.)
| | - Yuchi Zhang
- Department of Neurology, Faculty of Medicine, Shimane University, Izumo 693-8501, Japan; (A.K.A.); (A.Z.S.); (G.A.); (X.Z.); (Y.Z.)
| | - Atsushi Nagai
- Department of Neurology, Faculty of Medicine, Shimane University, Izumo 693-8501, Japan; (A.K.A.); (A.Z.S.); (G.A.); (X.Z.); (Y.Z.)
| |
Collapse
|
13
|
Phenotypic Differences between the Alzheimer's Disease-Related hAPP-J20 Model and Heterozygous Zbtb20 Knock-Out Mice. eNeuro 2021; 8:ENEURO.0089-21.2021. [PMID: 33833046 PMCID: PMC8121260 DOI: 10.1523/eneuro.0089-21.2021] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Revised: 03/30/2021] [Accepted: 04/02/2021] [Indexed: 12/20/2022] Open
Abstract
Diverse gene products contribute to the pathogenesis of Alzheimer’s disease (AD). Experimental models have helped elucidate their mechanisms and impact on brain functions. Human amyloid precursor protein (hAPP) transgenic mice from line J20 (hAPP-J20 mice) are widely used to simulate key aspects of AD. However, they also carry an insertional mutation in noncoding sequence of one Zbtb20 allele, a gene involved in neural development. We demonstrate that heterozygous hAPP-J20 mice have reduced Zbtb20 expression in some AD-relevant brain regions, but not others, and that Zbtb20 levels are higher in hAPP-J20 mice than heterozygous Zbtb20 knock-out (Zbtb20+/–) mice. Whereas hAPP-J20 mice have premature mortality, severe deficits in learning and memory, other behavioral alterations, and prominent nonconvulsive epileptiform activity, Zbtb20+/– mice do not. Thus, the insertional mutation in hAPP-J20 mice does not ablate the affected Zbtb20 allele and is unlikely to account for the AD-like phenotype of this model.
Collapse
|
14
|
Cassel JC, Ferraris M, Quilichini P, Cholvin T, Boch L, Stephan A, Pereira de Vasconcelos A. The reuniens and rhomboid nuclei of the thalamus: A crossroads for cognition-relevant information processing? Neurosci Biobehav Rev 2021; 126:338-360. [PMID: 33766671 DOI: 10.1016/j.neubiorev.2021.03.023] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Revised: 03/17/2021] [Accepted: 03/17/2021] [Indexed: 01/29/2023]
Abstract
Over the past twenty years, the reuniens and rhomboid (ReRh) nuclei, which constitute the ventral midline thalamus, have received constantly growing attention. Since our first review article about the functional contributions of ReRh nuclei (Cassel et al., 2013), numerous (>80) important papers have extended anatomical knowledge, including at a developmental level, introduced new and very original electrophysiological insights on ReRh functions, and brought novel results on cognitive and non-cognitive implications of the ReRh. The current review will cover these recent articles, more on Re than on Rh, and their contribution will be approached according to their affiliation with work before 2013. These neuroanatomical, electrophysiological or behavioral findings appear coherent and point to the ReRh nuclei as two major components of a multistructural system supporting numerous cognitive (and non-cognitive) functions. They gate the flow of information, perhaps especially from the medial prefrontal cortex to the hippocampus and back, and coordinate activity and processing across these two (and possibly other) brain regions of major cognitive relevance.
Collapse
Affiliation(s)
- Jean-Christophe Cassel
- Laboratoire de Neurosciences Cognitives et Adaptatives, Université de Strasbourg, F-67000 Strasbourg, France; LNCA, UMR 7364 - CNRS, F-67000 Strasbourg, France.
| | - Maëva Ferraris
- Aix Marseille Université, INSERM, INS, Inst Neurosci Syst, Marseille, France
| | - Pascale Quilichini
- Aix Marseille Université, INSERM, INS, Inst Neurosci Syst, Marseille, France
| | - Thibault Cholvin
- Institute for Physiology I, University Clinics Freiburg, 79104 Freiburg, Germany
| | - Laurine Boch
- Laboratoire de Neurosciences Cognitives et Adaptatives, Université de Strasbourg, F-67000 Strasbourg, France; LNCA, UMR 7364 - CNRS, F-67000 Strasbourg, France
| | - Aline Stephan
- Laboratoire de Neurosciences Cognitives et Adaptatives, Université de Strasbourg, F-67000 Strasbourg, France; LNCA, UMR 7364 - CNRS, F-67000 Strasbourg, France
| | - Anne Pereira de Vasconcelos
- Laboratoire de Neurosciences Cognitives et Adaptatives, Université de Strasbourg, F-67000 Strasbourg, France; LNCA, UMR 7364 - CNRS, F-67000 Strasbourg, France
| |
Collapse
|
15
|
Sharp PS, Ameen-Ali KE, Boorman L, Harris S, Wharton S, Howarth C, Shabir O, Redgrave P, Berwick J. Neurovascular coupling preserved in a chronic mouse model of Alzheimer's disease: Methodology is critical. J Cereb Blood Flow Metab 2020; 40:2289-2303. [PMID: 31760864 PMCID: PMC7585931 DOI: 10.1177/0271678x19890830] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
Impaired neurovascular coupling has been suggested as an early pathogenic factor in Alzheimer's disease (AD), which could serve as an early biomarker of cerebral pathology. We have established an anaesthetic regime to allow repeated measurements of neurovascular function over three months in the J20 mouse model of AD (J20-AD) and wild-type (WT) controls. Animals were 9-12 months old at the start of the experiment. Mice were chronically prepared with a cranial window through which 2-Dimensional optical imaging spectroscopy (2D-OIS) was used to generate functional maps of the cerebral blood volume and saturation changes evoked by whisker stimulation and vascular reactivity challenges. Unexpectedly, the hemodynamic responses were largely preserved in the J20-AD group. This result failed to confirm previous investigations using the J20-AD model. However, a final acute electrophysiology and 2D-OIS experiment was performed to measure both neural and hemodynamic responses concurrently. In this experiment, previously reported deficits in neurovascular coupling in the J20-AD model were observed. This suggests that J20-AD mice may be more susceptible to the physiologically stressing conditions of an acute experimental procedure compared to WT animals. These results therefore highlight the importance of experimental procedure when determining the characteristics of animal models of human disease.
Collapse
Affiliation(s)
- Paul S Sharp
- Nanomedicine Lab, Division of Pharmacy and Optometry, School of Health Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester, UK.,Department of Psychology, University of Sheffield, Sheffield, UK
| | - Kamar E Ameen-Ali
- Department of Psychology, University of Sheffield, Sheffield, UK.,Institute of Neuroscience, Newcastle University, Newcastle upon Tyne, UK
| | - Luke Boorman
- Institute of Neuroscience, Newcastle University, Newcastle upon Tyne, UK
| | - Sam Harris
- Department of Psychology, University of Sheffield, Sheffield, UK.,UK Dementia Research Institute, UCL Institute of Neurology, University College London, London, UK
| | - Stephen Wharton
- Department of Neuroscience, Sheffield Institute for Translational Neuroscience, University of Sheffield, Sheffield, UK
| | - Clare Howarth
- Department of Psychology, University of Sheffield, Sheffield, UK
| | - Osman Shabir
- Department of Psychology, University of Sheffield, Sheffield, UK
| | - Peter Redgrave
- Department of Psychology, University of Sheffield, Sheffield, UK
| | - Jason Berwick
- Department of Psychology, University of Sheffield, Sheffield, UK
| |
Collapse
|
16
|
Oberman K, Gouweleeuw L, Hoogerhout P, Eisel ULM, van Riet E, Schoemaker RG. Vaccination Prevented Short-Term Memory Loss, but Deteriorated Long-Term Spatial Memory in Alzheimer's Disease Mice, Independent of Amyloid-β Pathology. J Alzheimers Dis Rep 2020; 4:261-280. [PMID: 32904788 PMCID: PMC7458552 DOI: 10.3233/adr-200213] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Background: Soluble oligomeric amyloid-β (Aβ), rather than Aβ plaques, seems to be the culprit in Alzheimer’s disease (AD). Accordingly, a new concept vaccine of small cyclic peptide conjugates, selectively targeting oligomeric Aβ, has been developed. Objective: Study the therapeutic potential of this new vaccine in a mouse model for AD. Methods: J20 mice, overexpressing human amyloid precursor protein, were validated for an AD-like phenotype. Then, J20 mice were vaccinated at 2, 3, and 4 months of age and AD phenotype was evaluated at 6, 9, and 12 months of age; or at 9, 10, and 11 months with evaluation at 12 months. Effects on Aβ pathology were studied by plaque load (immunohistochemistry; 6E10) and antibody titers against Aβ (ELISA). AD behavioral phenotype was evaluated by performance in a battery of cognitive tests. Results: J20 mice displayed age-related Aβ plaque development and an AD-like behavioral phenotype. A consistent antibody response to the cyclic peptides was, however, not extended to Aβ, leaving plaque load unaffected. Nevertheless, immunization at young ages prevented working- and short-term spatial memory loss, but deteriorated long-term spatial learning and memory, at 12 months of age. Immunization at later ages did not affect any measured parameter. Conclusion: J20 mice provide a relevant model for AD to study potential anti-Aβ treatment. Early vaccination prevented short-term memory loss at later ages, but deteriorated long-term spatial memory, however without affecting Aβ pathology. Later vaccination had no effects, but optimal timing may require further investigation.
Collapse
Affiliation(s)
- Klaske Oberman
- Department of Neurobiology GELIFES, University Groningen, The Netherlands
| | - Leonie Gouweleeuw
- Department of Neurobiology GELIFES, University Groningen, The Netherlands
| | | | - Ulrich L M Eisel
- Department of Neurobiology GELIFES, University Groningen, The Netherlands
| | | | - Regien G Schoemaker
- Department of Neurobiology GELIFES, University Groningen, The Netherlands.,University Medical Center Groningen, The Netherlands
| |
Collapse
|
17
|
Mayordomo-Cava J, Iborra-Lázaro G, Djebari S, Temprano-Carazo S, Sánchez-Rodríguez I, Jeremic D, Gruart A, Delgado-García JM, Jiménez-Díaz L, Navarro-López JD. Impairments of Synaptic Plasticity Induction Threshold and Network Oscillatory Activity in the Hippocampus Underlie Memory Deficits in a Non-Transgenic Mouse Model of Amyloidosis. BIOLOGY 2020; 9:biology9070175. [PMID: 32698467 PMCID: PMC7407959 DOI: 10.3390/biology9070175] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Revised: 07/07/2020] [Accepted: 07/17/2020] [Indexed: 12/20/2022]
Abstract
In early Alzheimer disease (AD) models synaptic failures and upstreaming aberrant patterns of network synchronous activity result in hippocampal-dependent memory deficits. In such initial stage, soluble forms of Amyloid-β (Aβ) peptides have been shown to play a causal role. Among different Aβ species, Aβ25-35 has been identified as the biologically active fragment, as induces major neuropathological signs related to early AD stages. Consequently, it has been extensively used to acutely explore the pathophysiological events related with neuronal dysfunction induced by soluble Aβ forms. However, the synaptic mechanisms underlying its toxic effects on hippocampal-dependent memory remain unresolved. Here, in an in vivo model of amyloidosis generated by intracerebroventricular injections of Aβ25-35 we studied the synaptic dysfunction mechanisms underlying hippocampal cognitive deficits. At the synaptic level, long-term potentiation (LTP) of synaptic excitation and inhibition was induced in CA1 region by high frequency simulation (HFS) applied to Schaffer collaterals. Aβ25-35 was found to alter metaplastic mechanisms of plasticity, facilitating long-term depression (LTD) of both types of LTP. In addition, aberrant synchronization of hippocampal network activity was found while at the behavioral level, deficits in hippocampal-dependent habituation and recognition memories emerged. Together, our results provide a substrate for synaptic disruption mechanism underlying hippocampal cognitive deficits present in Aβ25-35 amyloidosis model.
Collapse
Affiliation(s)
- Jennifer Mayordomo-Cava
- Neurophysiology and Behavioral Lab, Centro Regional de Investigaciones Biomédicas, School of Medicine of Ciudad Real, University of Castilla-La Mancha, 13071 Ciudad Real, Spain; (J.M.-C.); (G.I.-L.); (S.D.); (S.T.-C.); (I.S.-R.); (D.J.)
| | - Guillermo Iborra-Lázaro
- Neurophysiology and Behavioral Lab, Centro Regional de Investigaciones Biomédicas, School of Medicine of Ciudad Real, University of Castilla-La Mancha, 13071 Ciudad Real, Spain; (J.M.-C.); (G.I.-L.); (S.D.); (S.T.-C.); (I.S.-R.); (D.J.)
| | - Souhail Djebari
- Neurophysiology and Behavioral Lab, Centro Regional de Investigaciones Biomédicas, School of Medicine of Ciudad Real, University of Castilla-La Mancha, 13071 Ciudad Real, Spain; (J.M.-C.); (G.I.-L.); (S.D.); (S.T.-C.); (I.S.-R.); (D.J.)
| | - Sara Temprano-Carazo
- Neurophysiology and Behavioral Lab, Centro Regional de Investigaciones Biomédicas, School of Medicine of Ciudad Real, University of Castilla-La Mancha, 13071 Ciudad Real, Spain; (J.M.-C.); (G.I.-L.); (S.D.); (S.T.-C.); (I.S.-R.); (D.J.)
| | - Irene Sánchez-Rodríguez
- Neurophysiology and Behavioral Lab, Centro Regional de Investigaciones Biomédicas, School of Medicine of Ciudad Real, University of Castilla-La Mancha, 13071 Ciudad Real, Spain; (J.M.-C.); (G.I.-L.); (S.D.); (S.T.-C.); (I.S.-R.); (D.J.)
| | - Danko Jeremic
- Neurophysiology and Behavioral Lab, Centro Regional de Investigaciones Biomédicas, School of Medicine of Ciudad Real, University of Castilla-La Mancha, 13071 Ciudad Real, Spain; (J.M.-C.); (G.I.-L.); (S.D.); (S.T.-C.); (I.S.-R.); (D.J.)
| | - Agnès Gruart
- Division of Neurosciences, Pablo de Olavide University, 41013 Seville, Spain; (A.G.); (J.M.D.-G.)
| | | | - Lydia Jiménez-Díaz
- Neurophysiology and Behavioral Lab, Centro Regional de Investigaciones Biomédicas, School of Medicine of Ciudad Real, University of Castilla-La Mancha, 13071 Ciudad Real, Spain; (J.M.-C.); (G.I.-L.); (S.D.); (S.T.-C.); (I.S.-R.); (D.J.)
- Correspondence: (L.J.-D.); (J.D.N.-L.)
| | - Juan D. Navarro-López
- Neurophysiology and Behavioral Lab, Centro Regional de Investigaciones Biomédicas, School of Medicine of Ciudad Real, University of Castilla-La Mancha, 13071 Ciudad Real, Spain; (J.M.-C.); (G.I.-L.); (S.D.); (S.T.-C.); (I.S.-R.); (D.J.)
- Correspondence: (L.J.-D.); (J.D.N.-L.)
| |
Collapse
|
18
|
Barbato C, Giacovazzo G, Albiero F, Scardigli R, Scopa C, Ciotti MT, Strimpakos G, Coccurello R, Ruberti F. Cognitive Decline and Modulation of Alzheimer's Disease-Related Genes After Inhibition of MicroRNA-101 in Mouse Hippocampal Neurons. Mol Neurobiol 2020; 57:3183-3194. [PMID: 32504417 DOI: 10.1007/s12035-020-01957-8] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2020] [Accepted: 05/26/2020] [Indexed: 12/11/2022]
Abstract
MicroRNAs have emerged as regulators of brain development and function. Reduction of miR-101 expression has been reported in rodent hippocampus during ageing, in the brain of Alzheimer's disease (AD) patients and in AD animal models. In this study, we investigated the behavioral and molecular consequences of inhibition of endogenous miR-101 in 4-5-month-old C57BL/6J mice, infused with lentiviral particles expressing a miR-101 sponge (pLSyn-miR-101 sponge) in the CA1 field of the hippocampus. The sponge-infected mouse model showed cognitive impairment. The pLSyn-miR-101 sponge-infected mice were unable to discriminate either a novel object location or a novel object as assessed by object place recognition (OPR) and novel object recognition (NOR) tasks, respectively. Moreover, the sponge-infected mice evaluated for contextual memory in inhibitory avoidance task showed shorter retention latency compared to control pLSyn mice. These cognitive impairment features were associated with increased hippocampal expression of relevant miR-101 target genes, amyloid precursor protein (APP), RanBP9 and Rab5 and overproduction of amyloid beta (Aβ) 42 levels, the more toxic species of Aβ peptide. Notably, phosphorylation-dependent AMP-activated protein kinase (AMPK) hyperactivation is associated with AD pathology and age-dependent memory decline, and we found AMPK hyperphosphorylation in the hippocampus of pLSyn-miR-101 sponge mice. This study demonstrates that mimicking age-associated loss of miR-101 in hippocampal neurons induces cognitive decline and modulation of AD-related genes in mice.
Collapse
Affiliation(s)
- C Barbato
- Institute of Biochemistry and Cell Biology (IBBC), National Research Council (CNR), Campus A. Buzzati-Traverso, via E. Ramarini 32, Monterotondo, RM, Italy
- Department of Sense Organs, IBBC, CNR, University Sapienza Rome, Viale del Policlinico 155, 00161, Rome, Italy
| | - G Giacovazzo
- Preclinical Neuroscience, European Center for Brain Research (CERC)/IRCCS Santa Lucia Foundation, via del Fosso di Fiorano 64, 00143, Rome, Italy
| | - F Albiero
- Institute of Cell Biology and Neurobiology, National Research Council (CNR), Via Fosso del Fiorano 64, 000143, Rome, Italy
| | - R Scardigli
- Institute of Translational Pharmacology, National Research Council (CNR), Via Fosso del Cavaliere 100, 00133, Rome, Italy
- European Brain Research Institute (EBRI), Viale Regina Elena 295, 00161, Rome, Italy
| | - C Scopa
- European Brain Research Institute (EBRI), Viale Regina Elena 295, 00161, Rome, Italy
| | - M T Ciotti
- Institute of Biochemistry and Cell Biology (IBBC), National Research Council (CNR), Campus A. Buzzati-Traverso, via E. Ramarini 32, Monterotondo, RM, Italy
| | - G Strimpakos
- Institute of Biochemistry and Cell Biology (IBBC), National Research Council (CNR), Campus A. Buzzati-Traverso, via E. Ramarini 32, Monterotondo, RM, Italy
| | - R Coccurello
- Preclinical Neuroscience, European Center for Brain Research (CERC)/IRCCS Santa Lucia Foundation, via del Fosso di Fiorano 64, 00143, Rome, Italy
- Institute for Complex System (ISC), National Research Council (CNR), via dei Taurini 19, 00185, Rome, Italy
| | - F Ruberti
- Institute of Biochemistry and Cell Biology (IBBC), National Research Council (CNR), Campus A. Buzzati-Traverso, via E. Ramarini 32, Monterotondo, RM, Italy.
| |
Collapse
|
19
|
Shabir O, Sharp P, Rebollar MA, Boorman L, Howarth C, Wharton SB, Francis SE, Berwick J. Enhanced Cerebral Blood Volume under Normobaric Hyperoxia in the J20-hAPP Mouse Model of Alzheimer's Disease. Sci Rep 2020; 10:7518. [PMID: 32371859 PMCID: PMC7200762 DOI: 10.1038/s41598-020-64334-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2019] [Accepted: 04/14/2020] [Indexed: 11/14/2022] Open
Abstract
Early impairments to neurovascular coupling have been proposed to be a key pathogenic factor in the onset and progression of Alzheimer's disease (AD). Studies have shown impaired neurovascular function in several mouse models of AD, including the J20-hAPP mouse. In this study, we aimed to investigate early neurovascular changes using wild-type (WT) controls and J20-hAPP mice at 6 months of age, by measuring cerebral haemodynamics and neural activity to physiological sensory stimulations. A thinned cranial window was prepared to allow access to cortical vasculature and imaged using 2D-optical imaging spectroscopy (2D-OIS). After chronic imaging sessions where the skull was intact, a terminal acute imaging session was performed where an electrode was inserted into the brain to record simultaneous neural activity. We found that cerebral haemodynamic changes were significantly enhanced in J20-hAPP mice compared with controls in response to physiological stimulations, potentially due to the significantly higher neural activity (hyperexcitability) seen in the J20-hAPP mice. Thus, neurovascular coupling remained preserved under a chronic imaging preparation. Further, under hyperoxia, the baseline blood volume and saturation of all vascular compartments in the brains of J20-hAPP mice were substantially enhanced compared to WT controls, but this effect disappeared under normoxic conditions. This study highlights novel findings not previously seen in the J20-hAPP mouse model, and may point towards a potential therapeutic strategy.
Collapse
Affiliation(s)
- Osman Shabir
- The Neurovascular & Neuroimaging Group (Department of Psychology), Alfred Denny Building, University of Sheffield, Western Bank, Sheffield, S10 2TN, UK
| | - Paul Sharp
- The Neurovascular & Neuroimaging Group (Department of Psychology), Alfred Denny Building, University of Sheffield, Western Bank, Sheffield, S10 2TN, UK
| | - Monica A Rebollar
- Sheffield Institute for Translational Neuroscience (SITraN), 385a Glossop Road, University of Sheffield, Sheffield, S10 2HQ, UK
| | - Luke Boorman
- The Neurovascular & Neuroimaging Group (Department of Psychology), Alfred Denny Building, University of Sheffield, Western Bank, Sheffield, S10 2TN, UK
| | - Clare Howarth
- The Neurovascular & Neuroimaging Group (Department of Psychology), Alfred Denny Building, University of Sheffield, Western Bank, Sheffield, S10 2TN, UK
| | - Stephen B Wharton
- Sheffield Institute for Translational Neuroscience (SITraN), 385a Glossop Road, University of Sheffield, Sheffield, S10 2HQ, UK
| | - Sheila E Francis
- Department of Infection, Immunity & Cardiovascular Disease (IICD), University of Sheffield, Medical School, Beech Hill Road, Sheffield, S10 2RX, UK
| | - Jason Berwick
- The Neurovascular & Neuroimaging Group (Department of Psychology), Alfred Denny Building, University of Sheffield, Western Bank, Sheffield, S10 2TN, UK.
| |
Collapse
|