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Zhornitsky S, Oliva HNP, Jayne LA, Allsop ASA, Kaye AP, Potenza MN, Angarita GA. Changes in synaptic markers after administration of ketamine or psychedelics: a systematic scoping review. Front Psychiatry 2023; 14:1197890. [PMID: 37435405 PMCID: PMC10331617 DOI: 10.3389/fpsyt.2023.1197890] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Accepted: 06/05/2023] [Indexed: 07/13/2023] Open
Abstract
Background Ketamine and psychedelics have abuse liability. They can also induce "transformative experiences" where individuals experience enhanced states of awareness. This enhanced awareness can lead to changes in preexisting behavioral patterns which could be beneficial in the treatment of substance use disorders (SUDs). Preclinical and clinical studies suggest that ketamine and psychedelics may alter markers associated with synaptic density, and that these changes may underlie effects such as sensitization, conditioned place preference, drug self-administration, and verbal memory performance. In this scoping review, we examined studies that measured synaptic markers in animals and humans after exposure to ketamine and/or psychedelics. Methods A systematic search was conducted following PRISMA guidelines, through PubMed, EBSCO, Scopus, and Web of Science, based on a published protocol (Open Science Framework, DOI: 10.17605/OSF.IO/43FQ9). Both in vivo and in vitro studies were included. Studies on the following synaptic markers were included: dendritic structural changes, PSD-95, synapsin-1, synaptophysin-1, synaptotagmin-1, and SV2A. Results Eighty-four studies were included in the final analyses. Seventy-one studies examined synaptic markers following ketamine treatment, nine examined psychedelics, and four examined both. Psychedelics included psilocybin/psilocin, lysergic acid diethylamide, N,N-dimethyltryptamine, 2,5-dimethoxy-4-iodoamphetamine, and ibogaine/noribogaine. Mixed findings regarding synaptic changes in the hippocampus and prefrontal cortex (PFC) have been reported when ketamine was administered in a single dose under basal conditions. Similar mixed findings were seen under basal conditions in studies that used repeated administration of ketamine. However, studies that examined animals during stressful conditions found that a single dose of ketamine counteracted stress-related reductions in synaptic markers in the hippocampus and PFC. Repeated administration of ketamine also counteracted stress effects in the hippocampus. Psychedelics generally increased synaptic markers, but results were more consistently positive for certain agents. Conclusion Ketamine and psychedelics can increase synaptic markers under certain conditions. Heterogeneous findings may relate to methodological differences, agents administered (or different formulations of the same agent), sex, and type of markers. Future studies could address seemingly mixed results by using meta-analytical approaches or study designs that more fully consider individual differences.
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Affiliation(s)
- Simon Zhornitsky
- Department of Psychiatry, Yale University School of Medicine, New Haven, CT, United States
- Clinical Neuroscience Research Unit, Connecticut Mental Health Center, New Haven, CT, United States
| | - Henrique N. P. Oliva
- Department of Psychiatry, Yale University School of Medicine, New Haven, CT, United States
- Clinical Neuroscience Research Unit, Connecticut Mental Health Center, New Haven, CT, United States
| | - Laura A. Jayne
- Department of Psychiatry, Yale University School of Medicine, New Haven, CT, United States
- Clinical Neuroscience Research Unit, Connecticut Mental Health Center, New Haven, CT, United States
| | - Aza S. A. Allsop
- Department of Psychiatry, Yale University School of Medicine, New Haven, CT, United States
- Clinical Neuroscience Research Unit, Connecticut Mental Health Center, New Haven, CT, United States
| | - Alfred P. Kaye
- Department of Psychiatry, Yale University School of Medicine, New Haven, CT, United States
- Connecticut Mental Health Center, New Haven, CT, United States
- Clinical Neurosciences Division, VA National Center for PTSD, West Haven, CT, United States
| | - Marc N. Potenza
- Department of Psychiatry, Yale University School of Medicine, New Haven, CT, United States
- Connecticut Mental Health Center, New Haven, CT, United States
- Child Study Center, Yale University School of Medicine, New Haven, CT, United States
- Department of Neuroscience, Yale University, New Haven, CT, United States
- Connecticut Council on Problem Gambling, Hartford, CT, United States
- Wu Tsai Institute, Yale University, New Haven, CT, United States
| | - Gustavo A. Angarita
- Department of Psychiatry, Yale University School of Medicine, New Haven, CT, United States
- Clinical Neuroscience Research Unit, Connecticut Mental Health Center, New Haven, CT, United States
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Lim J, Petersen M, Bunz M, Simon C, Schindler M. Flow cytometry based-FRET: basics, novel developments and future perspectives. Cell Mol Life Sci 2022; 79:217. [PMID: 35352201 PMCID: PMC8964568 DOI: 10.1007/s00018-022-04232-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Accepted: 03/07/2022] [Indexed: 12/29/2022]
Abstract
Förster resonance energy transfer (FRET) is a widespread technology used to analyze and quantify protein interactions in multiple settings. While FRET is traditionally measured by microscopy, flow cytometry based-FRET is becoming popular within the last decade and more commonly used. Flow cytometry based-FRET offers the possibility to assess FRET in a short time-frame in a high number of cells thereby allowing stringent and statistically robust quantification of FRET in multiple samples. Furthermore, established, simple and easy to implement gating strategies facilitate the adaptation of flow cytometry based-FRET measurements to most common flow cytometers. We here summarize the basics of flow cytometry based-FRET, highlight recent novel developments in this field and emphasize on exciting future perspectives.
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Affiliation(s)
- JiaWen Lim
- Institute for Medical Virology and Epidemiology of Viral Diseases, University Hospital Tübingen, Tübingen, Germany
| | - Moritz Petersen
- Institute for Medical Virology and Epidemiology of Viral Diseases, University Hospital Tübingen, Tübingen, Germany
| | - Maximilian Bunz
- Institute for Medical Virology and Epidemiology of Viral Diseases, University Hospital Tübingen, Tübingen, Germany
| | - Claudia Simon
- Institute for Medical Virology and Epidemiology of Viral Diseases, University Hospital Tübingen, Tübingen, Germany
| | - Michael Schindler
- Institute for Medical Virology and Epidemiology of Viral Diseases, University Hospital Tübingen, Tübingen, Germany.
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Wang XS, Li LC, Zhang X, Gao J. Lipoxin A 4 methyl ester protects PC12 cells from ketamine-induced neurotoxicity via the miR-22/BAG5 pathway. Hum Exp Toxicol 2021; 40:S519-S529. [PMID: 34670429 DOI: 10.1177/09603271211051602] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
OBJECTIVE Ketamine is an anesthetic that induces neurotoxicity when administered at high doses. In this work, we explored the protective effects of lipoxin A4 methyl ester (LXA4 ME) against ketamine-induced neurotoxicity and the underlying protective mechanism in pheochromocytoma (PC12) cells. METHODS PC12 cells were treated with 50 μM of ketamine and different LXA4 ME concentrations of LXA4 ME (5-50 nM) for 24 h, and their viability, apoptosis, and oxidative status were assessed. RESULTS Quantitative real-time polymerase chain reaction experiments showed that ketamine downregulated miR-22 expression and upregulated Bcl-2-associated athanogene 5 (BAG5) in PC12 cells in a concentration-dependent manner. LXA4 ME induced the opposite effects, thus attenuating ketamine-induced neurotoxicity. Further in vitro assays showed that miR-22 directly targeted BAG5, thus promoting cell viability by suppressing cell apoptosis and oxidative stress. Under expression miR-22 or upregulation of BAG5 antagonized the effects of LXA4 ME. CONCLUSION LXA4 ME can protect PC12 cells from ketamine-induced neurotoxicity by activating the miR-22/BAG5 signaling pathway. Thus, LXA4 ME can be used as a protective drug against ketamine-induced neural damage.
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Affiliation(s)
- Xue-Song Wang
- Department of Anesthesiology, 74731Xiangyang Central Hospital, Affiliated Hospital of Hubei University of Arts and Science, Xiangyang, China
| | - Long-Cheng Li
- Department of Anesthesiology, 74731Xiangyang Central Hospital, Affiliated Hospital of Hubei University of Arts and Science, Xiangyang, China
| | - Xue Zhang
- Department of Anesthesiology, 74731Xiangyang Central Hospital, Affiliated Hospital of Hubei University of Arts and Science, Xiangyang, China
| | - Jin Gao
- Department of Anesthesiology, 74731Xiangyang Central Hospital, Affiliated Hospital of Hubei University of Arts and Science, Xiangyang, China
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Tidmore A, Dutta SM, Fesshaye AS, Russell WK, Duncan VD, Britten RA. Space Radiation-Induced Alterations in the Hippocampal Ubiquitin-Proteome System. Int J Mol Sci 2021; 22:ijms22147713. [PMID: 34299332 PMCID: PMC8304141 DOI: 10.3390/ijms22147713] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2021] [Revised: 07/08/2021] [Accepted: 07/15/2021] [Indexed: 12/20/2022] Open
Abstract
Exposure of rodents to <20 cGy Space Radiation (SR) impairs performance in several hippocampus-dependent cognitive tasks, including spatial memory. However, there is considerable inter-individual susceptibility to develop SR-induced spatial memory impairment. In this study, a robust label-free mass spectrometry (MS)-based unbiased proteomic profiling approach was used to characterize the composition of the hippocampal proteome in adult male Wistar rats exposed to 15 cGy of 1 GeV/n 48Ti and their sham counterparts. Unique protein signatures were identified in the hippocampal proteome of: (1) sham rats, (2) Ti-exposed rats, (3) Ti-exposed rats that had sham-like spatial memory performance, and (4) Ti-exposed rats that impaired spatial memory performance. Approximately 14% (159) of the proteins detected in hippocampal proteome of sham rats were not detected in the Ti-exposed rats. We explored the possibility that the loss of the Sham-only proteins may arise as a result of SR-induced changes in protein homeostasis. SR-exposure was associated with a switch towards increased pro-ubiquitination proteins from that seen in Sham. These data suggest that the role of the ubiquitin-proteome system as a determinant of SR-induced neurocognitive deficits needs to be more thoroughly investigated.
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Affiliation(s)
- Alyssa Tidmore
- Department of Radiation Oncology, Eastern Virginia Medical School, 700 W. Olney Rd., Lewis Hall, Norfolk, VA 23507, USA; (A.T.); (A.S.F.); (V.D.D.)
- Department of Microbiology and Molecular Cell Biology; Eastern Virginia Medical School, Norfolk, VA 23507, USA;
- Leroy T. Canoles Jr. Cancer Research Center, Eastern Virginia Medical School, Norfolk, VA 23507, USA
- Center for Integrative Neuroinflammatory and Inflammatory Diseases, Eastern Virginia Medical School, Norfolk, VA 23507, USA
| | - Sucharita M. Dutta
- Department of Microbiology and Molecular Cell Biology; Eastern Virginia Medical School, Norfolk, VA 23507, USA;
- Leroy T. Canoles Jr. Cancer Research Center, Eastern Virginia Medical School, Norfolk, VA 23507, USA
| | - Arriyam S. Fesshaye
- Department of Radiation Oncology, Eastern Virginia Medical School, 700 W. Olney Rd., Lewis Hall, Norfolk, VA 23507, USA; (A.T.); (A.S.F.); (V.D.D.)
- Department of Microbiology and Molecular Cell Biology; Eastern Virginia Medical School, Norfolk, VA 23507, USA;
- Leroy T. Canoles Jr. Cancer Research Center, Eastern Virginia Medical School, Norfolk, VA 23507, USA
- Center for Integrative Neuroinflammatory and Inflammatory Diseases, Eastern Virginia Medical School, Norfolk, VA 23507, USA
| | - William K. Russell
- Department of Biochemistry and Molecular Biology, University of Texas Medical Branch, Galveston, TX 77555, USA;
| | - Vania D. Duncan
- Department of Radiation Oncology, Eastern Virginia Medical School, 700 W. Olney Rd., Lewis Hall, Norfolk, VA 23507, USA; (A.T.); (A.S.F.); (V.D.D.)
| | - Richard A. Britten
- Department of Radiation Oncology, Eastern Virginia Medical School, 700 W. Olney Rd., Lewis Hall, Norfolk, VA 23507, USA; (A.T.); (A.S.F.); (V.D.D.)
- Department of Microbiology and Molecular Cell Biology; Eastern Virginia Medical School, Norfolk, VA 23507, USA;
- Leroy T. Canoles Jr. Cancer Research Center, Eastern Virginia Medical School, Norfolk, VA 23507, USA
- Center for Integrative Neuroinflammatory and Inflammatory Diseases, Eastern Virginia Medical School, Norfolk, VA 23507, USA
- Correspondence:
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Pasqual E, Boussin F, Bazyka D, Nordenskjold A, Yamada M, Ozasa K, Pazzaglia S, Roy L, Thierry-Chef I, de Vathaire F, Benotmane MA, Cardis E. Cognitive effects of low dose of ionizing radiation - Lessons learned and research gaps from epidemiological and biological studies. ENVIRONMENT INTERNATIONAL 2021; 147:106295. [PMID: 33341586 DOI: 10.1016/j.envint.2020.106295] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Revised: 10/02/2020] [Accepted: 10/20/2020] [Indexed: 06/12/2023]
Abstract
The last decades have seen increased concern about the possible effects of low to moderate doses of ionizing radiation (IR) exposure on cognitive function. An interdisciplinary group of experts (biologists, epidemiologists, dosimetrists and clinicians) in this field gathered together in the framework of the European MELODI workshop on non-cancer effects of IR to summarise the state of knowledge on the topic and elaborate research recommendations for future studies in this area. Overall, there is evidence of cognitive effects from low IR doses both from biology and epidemiology, though a better characterization of effects and understanding of mechanisms is needed. There is a need to better describe the specific cognitive function or diseases that may be affected by radiation exposure. Such cognitive deficit characterization should consider the human life span, as effects might differ with age at exposure and at outcome assessment. Measurements of biomarkers, including imaging, will likely help our understanding on the mechanism of cognitive-related radiation induced deficit. The identification of loci of individual genetic susceptibility and the study of gene expression may help identify individuals at higher risk. The mechanisms behind the radiation induced cognitive effects are not clear and are likely to involve several biological pathways and different cell types. Well conducted research in large epidemiological cohorts and experimental studies in appropriate animal models are needed to improve the understanding of radiation-induced cognitive effects. Results may then be translated into recommendations for clinical radiation oncology and imaging decision making processes.
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Affiliation(s)
- Elisa Pasqual
- Barcelona Institute for Global Health (ISGlobal), Campus Mar, Barcelona Biomedical Research Park (PRBB), Dr Aiguader 88, 08003 Barcelona, Spain; University Pompeu Fabra, Barcelona, Spain; Consortium for Biomedical Research in Epidemiology & Public Health (CIBERESP), Carlos III Institute of Health, Madrid, Spain.
| | - François Boussin
- Université de Paris and Université Paris-Saclay, Inserm, LRP/iRCM/IBFJ CEA, UMR Stabilité Génétique Cellules Souches et Radiations, F-92265 Fontenay-aux-Roses, France
| | - Dimitry Bazyka
- National Research Center for Radiation Medicine, 53 Illenko str., Kyiv, Ukraine
| | - Arvid Nordenskjold
- Department of Clinical Neuroscience, Division of Neurology, Karolinska Institutet, Stockholm, Sweden
| | - Michiko Yamada
- Department of Clinical Studies, Radiation Effects Research Foundation, Hiroshima, Japan
| | - Kotaro Ozasa
- Department of Epidemiology, Radiation Effects Research Foundation, Hiroshima, Japan
| | - Simonetta Pazzaglia
- Laboratory of Biomedical Technologies, ENEA CR-Casaccia, Via Anguillarese 301, 00123 Rome, Italy
| | - Laurence Roy
- Department for Research on the Biological and Health Effects of Ionising Radiation. Institut of Radiation Protection and Nuclear Safety (IRSN), Fontenay-aux-Roses, France
| | - Isabelle Thierry-Chef
- Barcelona Institute for Global Health (ISGlobal), Campus Mar, Barcelona Biomedical Research Park (PRBB), Dr Aiguader 88, 08003 Barcelona, Spain; University Pompeu Fabra, Barcelona, Spain; Consortium for Biomedical Research in Epidemiology & Public Health (CIBERESP), Carlos III Institute of Health, Madrid, Spain
| | - Florent de Vathaire
- Radiation Epidemiology Teams, INSERM Unit 1018, University Paris Saclay, Gustave Roussy, 94800 Villejuif, France
| | | | - Elisabeth Cardis
- Barcelona Institute for Global Health (ISGlobal), Campus Mar, Barcelona Biomedical Research Park (PRBB), Dr Aiguader 88, 08003 Barcelona, Spain; University Pompeu Fabra, Barcelona, Spain; Consortium for Biomedical Research in Epidemiology & Public Health (CIBERESP), Carlos III Institute of Health, Madrid, Spain
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