1
|
Chiani F, Mastrorilli V, Marchetti N, Macioce A, Nappi C, Strimpakos G, Pasquini M, Gambadoro A, Battistini JI, Cutuli D, Petrosini L, Marinelli S, Scardigli R, Farioli Vecchioli S. Essential role of p21 Waf1/Cip1 in the modulation of post-traumatic hippocampal Neural Stem Cells response. Stem Cell Res Ther 2024; 15:197. [PMID: 38971774 PMCID: PMC11227726 DOI: 10.1186/s13287-024-03787-0] [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: 10/24/2023] [Accepted: 06/07/2024] [Indexed: 07/08/2024] Open
Abstract
BACKGROUND Traumatic Brain Injury (TBI) represents one of the main causes of brain damage in young people and the elderly population with a very high rate of psycho-physical disability and death. TBI is characterized by extensive cell death, tissue damage and neuro-inflammation with a symptomatology that varies depending on the severity of the trauma from memory loss to a state of irreversible coma and death. Recently, preclinical studies on mouse models have demonstrated that the post-traumatic adult Neural Stem/Progenitor cells response could represent an excellent model to shed light on the neuro-reparative role of adult neurogenesis following damage. The cyclin-dependent kinase inhibitor p21Waf1/Cip1 plays a pivotal role in modulating the quiescence/activation balance of adult Neural Stem Cells (aNSCs) and in restraining the proliferation progression of progenitor cells. Based on these considerations, the aim of this work is to evaluate how the conditional ablation of p21Waf1/Cip1 in the aNSCS can alter the adult hippocampal neurogenesis in physiological and post-traumatic conditions. METHODS We designed a novel conditional p21Waf1/Cip1 knock-out mouse model, in which the deletion of p21Waf1/Cip1 (referred as p21) is temporally controlled and occurs in Nestin-positive aNSCs, following administration of Tamoxifen. This mouse model (referred as p21 cKO mice) was subjected to Controlled Cortical Impact to analyze how the deletion of p21 could influence the post-traumatic neurogenic response within the hippocampal niche. RESULTS The data demonstrates that the conditional deletion of p21 in the aNSCs induces a strong increase in activation of aNSCs as well as proliferation and differentiation of neural progenitors in the adult dentate gyrus of the hippocampus, resulting in an enhancement of neurogenesis and the hippocampal-dependent working memory. However, following traumatic brain injury, the increased neurogenic response of aNSCs in p21 cKO mice leads to a fast depletion of the aNSCs pool, followed by declined neurogenesis and impaired hippocampal functionality. CONCLUSIONS These data demonstrate for the first time a fundamental role of p21 in modulating the post-traumatic hippocampal neurogenic response, by the regulation of the proliferative and differentiative steps of aNSCs/progenitor populations after brain damage.
Collapse
Affiliation(s)
- Francesco Chiani
- Institute of Biochemistry and Cell Biology, IBBC, CNR, Monterotondo, Rome, Italy
| | | | - Nicole Marchetti
- Institute of Biochemistry and Cell Biology, IBBC, CNR, Monterotondo, Rome, Italy
- PhD Course in Sciences of Nutrition, Aging, Metabolism and Gender Pathologies, Catholic University of Roma, 00100, Rome, Italy
| | - Andrea Macioce
- Institute of Biochemistry and Cell Biology, IBBC, CNR, Monterotondo, Rome, Italy
| | - Chiara Nappi
- Instituto de Neurosciencias, Universidad Miguel-Hernandez, Alicante, Spain
| | - Georgios Strimpakos
- Institute of Biochemistry and Cell Biology, IBBC, CNR, Monterotondo, Rome, Italy
| | - Miriam Pasquini
- Institute of Biochemistry and Cell Biology, IBBC, CNR, Monterotondo, Rome, Italy
| | - Alessia Gambadoro
- Institute of Biochemistry and Cell Biology, IBBC, CNR, Monterotondo, Rome, Italy
| | | | - Debora Cutuli
- Department of Psychology, Sapienza University of Rome, Via dei Marsi 78, 00185, Rome, Italy
- IRCCS Fondazione Santa Lucia, Via Ardeatina 306, 00179, Rome, Italy
| | - Laura Petrosini
- IRCCS Fondazione Santa Lucia, Via Ardeatina 306, 00179, Rome, Italy
| | - Sara Marinelli
- Institute of Biochemistry and Cell Biology, IBBC, CNR, Monterotondo, Rome, Italy
| | - Raffaella Scardigli
- European Brain Research Institute (EBRI), Viale Regine Elena, 00161, Rome, Italy
- Institute of Translational Pharmacology, National Research Council, Rome, Italy
| | | |
Collapse
|
2
|
Gephine L, Roux CM, Freret T, Boulouard M, Leger M. Vulnerability of Spatial Pattern Separation in 5xFAD Alzheimer's Disease Mouse Model. J Alzheimers Dis 2024; 97:1889-1900. [PMID: 38306047 DOI: 10.3233/jad-231112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2024]
Abstract
Background Alzheimer's disease (AD) is the most common cause of dementia and remains incurable. This age-related neurodegenerative disease is characterized by an early decline in episodic and spatial memory associated with progressive disruption of the hippocampal functioning. Recent clinical evidence suggests that impairment of the spatial pattern separation (SPS) function, which enables the encoding and storage of episodic spatial information, may be an indicator of the early stages of AD. Objective The aim of our study was to characterize SPS performance at a prodromal stage in 5xFAD transgenic mouse model of AD. Methods Behavioral performance of male wild-type (WT) and 5xFAD mice (n = 14 per group) was assessed from the age of 4 months in two validated paradigms of SPS function either based on spontaneous exploration of objects or on the use of a touchscreen system. Results Compared with age-matched WT littermates, a mild deficit in SPS function was observed in the object recognition task in 5xFAD mice, whereas both groups showed similar performance in the touchscreen-based task. These results were observed in the absence of changes in locomotor activity or anxiety-like behavior that could have interfered with the tasks assessing SPS function. Conclusions Our results indicate an early vulnerability of the SPS function in 5xFAD mice in the paradigm based on spontaneous exploration of objects. Our work opens up the possibility of examining the early neurobiological processes involved in the decline of episodic memory and may help to propose new therapeutic strategies in the context of AD.
Collapse
Affiliation(s)
- Lucas Gephine
- Normandie Université, UNICAEN, INSERM, COMETE, CYCERON, CHU Caen, Caen, France
| | - Candice M Roux
- Normandie Université, UNICAEN, INSERM, COMETE, CYCERON, CHU Caen, Caen, France
| | - Thomas Freret
- Normandie Université, UNICAEN, INSERM, COMETE, CYCERON, CHU Caen, Caen, France
| | - Michel Boulouard
- Normandie Université, UNICAEN, INSERM, COMETE, CYCERON, CHU Caen, Caen, France
| | - Marianne Leger
- Normandie Université, UNICAEN, INSERM, COMETE, CYCERON, CHU Caen, Caen, France
| |
Collapse
|
3
|
Lopes JB, Małz M, Senko AN, Zocher S, Kempermann G. Loss of individualized behavioral trajectories in adult neurogenesis-deficient cyclin D2 knockout mice. Hippocampus 2023; 33:360-372. [PMID: 36880417 DOI: 10.1002/hipo.23522] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Revised: 02/14/2023] [Accepted: 02/19/2023] [Indexed: 03/08/2023]
Abstract
There is still limited mechanistic insight into how the interaction of individuals with their environment results in the emergence of individuality in behavior and brain structure. Nevertheless, the idea that personal activity shapes the brain is implicit in strategies for healthy cognitive aging as well as in the idea that individuality is reflected in the brain's connectome. We have shown that even isogenic mice kept in a shared enriched environment (ENR) developed divergent and stable social and exploratory trajectories. As these trajectories-measured as roaming entropy (RE)-positively correlated with adult hippocampal neurogenesis, we hypothesized that a feedback between behavioral activity and adult hippocampal neurogenesis might be a causal factor in brain individualization. We used cyclin D2 knockout mice with constitutively extremely low levels of adult hippocampal neurogenesis and their wild-type littermates. We housed them for 3 months in a novel ENR paradigm, consisting of 70 connected cages equipped with radio frequency identification antennae for longitudinal tracking. Cognitive performance was evaluated in the Morris Water Maze task (MWM). With immunohistochemistry we confirmed that adult neurogenesis correlated with RE in both genotypes and that D2 knockout mice had the expected impaired performance in the reversal phase of the MWM. But whereas the wild-type animals developed stable exploratory trajectories with increasing variance, correlating with adult neurogenesis, this individualizing phenotype was absent in D2 knockout mice. Here the behaviors started out more random and revealed less habituation and low variance. Together, these findings suggest that adult neurogenesis contributes to experience-dependent brain individualization.
Collapse
Affiliation(s)
- Jadna Bogado Lopes
- German Center for Neurodegenerative Diseases (DZNE) Dresden, Dresden, Germany
- CRTD - Center for Regenerative Therapies TU Dresden, Dresden, Germany
| | - Monika Małz
- German Center for Neurodegenerative Diseases (DZNE) Dresden, Dresden, Germany
- CRTD - Center for Regenerative Therapies TU Dresden, Dresden, Germany
| | - Anna N Senko
- German Center for Neurodegenerative Diseases (DZNE) Dresden, Dresden, Germany
- CRTD - Center for Regenerative Therapies TU Dresden, Dresden, Germany
| | - Sara Zocher
- German Center for Neurodegenerative Diseases (DZNE) Dresden, Dresden, Germany
- CRTD - Center for Regenerative Therapies TU Dresden, Dresden, Germany
| | - Gerd Kempermann
- German Center for Neurodegenerative Diseases (DZNE) Dresden, Dresden, Germany
- CRTD - Center for Regenerative Therapies TU Dresden, Dresden, Germany
| |
Collapse
|
4
|
Adhikari A, Buchanan FKB, Fenton TA, Cameron DL, Halmai JANM, Copping NA, Fink KD, Silverman JL. Touchscreen Cognitive Deficits, Hyperexcitability, and Hyperactivity in Males and Females Using Two Models of Cdkl5 Deficiency. Hum Mol Genet 2022; 31:3032-3050. [PMID: 35445702 PMCID: PMC9476626 DOI: 10.1093/hmg/ddac091] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2021] [Revised: 04/06/2022] [Accepted: 04/07/2022] [Indexed: 11/17/2022] Open
Abstract
Many neurodevelopmental disorders (NDDs) are the result of mutations on the X chromosome. One severe NDD resulting from mutations on the X chromosome is CDKL5 deficiency disorder (CDD). CDD is an epigenetic, X-linked NDD characterized by intellectual disability (ID), pervasive seizures and severe sleep disruption, including recurring hospitalizations. CDD occurs at a 4:1 ratio, with a female bias. CDD is driven by the loss of cyclin-dependent kinase-like 5 (CDKL5), a serine/threonine kinase that is essential for typical brain development, synapse formation and signal transmission. Previous studies focused on male subjects from animal models, likely to avoid the complexity of X mosaicism. For the first time, we report translationally relevant behavioral phenotypes in young adult (8–20 weeks) females and males with robust signal size, including impairments in learning and memory, substantial hyperactivity and increased susceptibility to seizures/reduced seizure thresholds, in both sexes, and in two models of CDD preclinical mice, one with a general loss-of-function mutation and one that is a patient-derived mutation.
Collapse
Affiliation(s)
- Anna Adhikari
- MIND Institute, University of California Davis School of Medicine, Sacramento, CA.,Department of Psychiatry and Behavioral Sciences, University of California Davis School of Medicine, Sacramento, CA
| | - Fiona K B Buchanan
- Department of Neurology, University of California Davis School of Medicine, Sacramento, CA.,Stem Cell Program and Gene Therapy Center, University of California Davis School of Medicine, Sacramento, CA
| | - Timothy A Fenton
- MIND Institute, University of California Davis School of Medicine, Sacramento, CA.,Department of Psychiatry and Behavioral Sciences, University of California Davis School of Medicine, Sacramento, CA
| | - David L Cameron
- Department of Neurology, University of California Davis School of Medicine, Sacramento, CA.,Stem Cell Program and Gene Therapy Center, University of California Davis School of Medicine, Sacramento, CA
| | - Julian A N M Halmai
- Department of Neurology, University of California Davis School of Medicine, Sacramento, CA.,Stem Cell Program and Gene Therapy Center, University of California Davis School of Medicine, Sacramento, CA
| | - Nycole A Copping
- MIND Institute, University of California Davis School of Medicine, Sacramento, CA.,Department of Psychiatry and Behavioral Sciences, University of California Davis School of Medicine, Sacramento, CA
| | - Kyle D Fink
- MIND Institute, University of California Davis School of Medicine, Sacramento, CA.,Department of Neurology, University of California Davis School of Medicine, Sacramento, CA.,Stem Cell Program and Gene Therapy Center, University of California Davis School of Medicine, Sacramento, CA
| | - Jill L Silverman
- MIND Institute, University of California Davis School of Medicine, Sacramento, CA.,Department of Psychiatry and Behavioral Sciences, University of California Davis School of Medicine, Sacramento, CA
| |
Collapse
|
5
|
Sippel D, Schwabedal J, Snyder JC, Oyanedel CN, Bernas SN, Garthe A, Tröndle A, Storch A, Kempermann G, Brandt MD. Disruption of NREM sleep and sleep-related spatial memory consolidation in mice lacking adult hippocampal neurogenesis. Sci Rep 2020; 10:16467. [PMID: 33020501 PMCID: PMC7536189 DOI: 10.1038/s41598-020-72362-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2020] [Accepted: 08/31/2020] [Indexed: 12/25/2022] Open
Abstract
Cellular plasticity at the structural level and sleep at the behavioural level are both essential for memory formation. The link between the two is not well understood. A functional connection between adult neurogenesis and hippocampus-dependent memory consolidation during NREM sleep has been hypothesized but not experimentally shown. Here, we present evidence that during a three-day learning session in the Morris water maze task a genetic knockout model of adult neurogenesis (Cyclin D2-/-) showed changes in sleep macro- and microstructure. Sleep EEG analyses revealed a lower total sleep time and NREM fraction in Cyclin D2-/- mice as well as an impairment of sleep specific neuronal oscillations that are associated with memory consolidation. Better performance in the memory task was associated with specific sleep parameters in wild-type, but not in Cyclin D2-/- mice. In wild-type animals the number of proliferating cells correlated with the amount of NREM sleep. The lack of adult neurogenesis led to changes in sleep architecture and oscillations that represent the dialog between hippocampus and neocortex during sleep. We suggest that adult neurogenesis-as a key event of hippocampal plasticity-might play an important role for sleep-dependent memory consolidation and modulates learning-induced changes of sleep macro- and microstructure.
Collapse
Affiliation(s)
- D Sippel
- Institute of Medical Psychology and Behavioral Neurobiology, University of Tübingen, 72076, Tübingen, Germany.,Department of Psychiatry and Psychotherapy, University Hospital Tübingen, 72076, Tübingen, Germany
| | - J Schwabedal
- Max Planck Institute for the Physics of Complex Systems, 01187, Dresden, Germany
| | - J C Snyder
- Department of Neurology, University Hospital, Technische Universität Dresden, 01307, Dresden, Germany
| | - C N Oyanedel
- Institute of Medical Psychology and Behavioral Neurobiology, University of Tübingen, 72076, Tübingen, Germany
| | - S N Bernas
- Center for Regenerative Therapies TU Dresden, 01307, Dresden, Germany
| | - A Garthe
- German Center for Neurodegenerative Diseases (DZNE) Dresden, 01307, Dresden, Germany
| | - A Tröndle
- Department of Neurology, University Hospital, Technische Universität Dresden, 01307, Dresden, Germany.,Center for Regenerative Therapies TU Dresden, 01307, Dresden, Germany
| | - A Storch
- German Center for Neurodegenerative Diseases (DZNE) Rostock, 18147, Rostock, Germany.,Department of Neurology, University of Rostock, 18147, Rostock, Germany
| | - G Kempermann
- German Center for Neurodegenerative Diseases (DZNE) Dresden, 01307, Dresden, Germany.,Center for Regenerative Therapies TU Dresden, 01307, Dresden, Germany
| | - M D Brandt
- Department of Neurology, University Hospital, Technische Universität Dresden, 01307, Dresden, Germany. .,German Center for Neurodegenerative Diseases (DZNE) Dresden, 01307, Dresden, Germany.
| |
Collapse
|
6
|
Berg EL, Pedersen LR, Pride MC, Petkova SP, Patten KT, Valenzuela AE, Wallis C, Bein KJ, Wexler A, Lein PJ, Silverman JL. Developmental exposure to near roadway pollution produces behavioral phenotypes relevant to neurodevelopmental disorders in juvenile rats. Transl Psychiatry 2020; 10:289. [PMID: 32807767 PMCID: PMC7431542 DOI: 10.1038/s41398-020-00978-0] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/10/2020] [Revised: 07/07/2020] [Accepted: 07/15/2020] [Indexed: 01/09/2023] Open
Abstract
Epidemiological studies consistently implicate traffic-related air pollution (TRAP) and/or proximity to heavily trafficked roads as risk factors for developmental delays and neurodevelopmental disorders (NDDs); however, there are limited preclinical data demonstrating a causal relationship. To test the effects of TRAP, pregnant rat dams were transported to a vivarium adjacent to a major freeway tunnel system in northern California where they were exposed to TRAP drawn directly from the face of the tunnel or filtered air (FA). Offspring remained housed under the exposure condition into which they were born and were tested in a variety of behavioral assays between postnatal day 4 and 50. To assess the effects of near roadway exposure, offspring of dams housed in a standard research vivarium were tested at the laboratory. An additional group of dams was transported halfway to the facility and then back to the laboratory to control for the effect of potential transport stress. Near roadway exposure delayed growth and development of psychomotor reflexes and elicited abnormal activity in open field locomotion. Near roadway exposure also reduced isolation-induced 40-kHz pup ultrasonic vocalizations, with the TRAP group having the lowest number of call emissions. TRAP affected some components of social communication, evidenced by reduced neonatal pup ultrasonic calling and altered juvenile reciprocal social interactions. These findings confirm that living in close proximity to highly trafficked roadways during early life alters neurodevelopment.
Collapse
Affiliation(s)
- Elizabeth L. Berg
- grid.27860.3b0000 0004 1936 9684MIND Institute and Department of Psychiatry and Behavioral Sciences, University of California Davis School of Medicine, Sacramento, CA USA
| | - Lauren R. Pedersen
- grid.27860.3b0000 0004 1936 9684MIND Institute and Department of Psychiatry and Behavioral Sciences, University of California Davis School of Medicine, Sacramento, CA USA
| | - Michael C. Pride
- grid.27860.3b0000 0004 1936 9684MIND Institute and Department of Psychiatry and Behavioral Sciences, University of California Davis School of Medicine, Sacramento, CA USA
| | - Stela P. Petkova
- grid.27860.3b0000 0004 1936 9684MIND Institute and Department of Psychiatry and Behavioral Sciences, University of California Davis School of Medicine, Sacramento, CA USA
| | - Kelley T. Patten
- grid.27860.3b0000 0004 1936 9684Department of Molecular Biosciences, University of California Davis School of Veterinary Medicine, Davis, CA USA
| | - Anthony E. Valenzuela
- grid.27860.3b0000 0004 1936 9684Department of Molecular Biosciences, University of California Davis School of Veterinary Medicine, Davis, CA USA
| | - Christopher Wallis
- grid.27860.3b0000 0004 1936 9684Air Quality Research Center, University of California Davis, Davis, CA USA
| | - Keith J. Bein
- grid.27860.3b0000 0004 1936 9684Air Quality Research Center, University of California Davis, Davis, CA USA
| | - Anthony Wexler
- grid.27860.3b0000 0004 1936 9684Air Quality Research Center, University of California Davis, Davis, CA USA
| | - Pamela J. Lein
- grid.27860.3b0000 0004 1936 9684Department of Molecular Biosciences, University of California Davis School of Veterinary Medicine, Davis, CA USA
| | - Jill L. Silverman
- grid.27860.3b0000 0004 1936 9684MIND Institute and Department of Psychiatry and Behavioral Sciences, University of California Davis School of Medicine, Sacramento, CA USA
| |
Collapse
|