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Mazzocco C, Genevois C, Li Q, Doudnikoff E, Dutheil N, Leste-Lasserre T, Arotcarena ML, Bezard E. In vivo bioluminescence imaging of the intracerebral fibroin-controlled AAV-α-synuclein diffusion for monitoring the central nervous system and peripheral expression. Sci Rep 2024; 14:9710. [PMID: 38678103 PMCID: PMC11055870 DOI: 10.1038/s41598-024-60613-6] [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: 01/04/2024] [Accepted: 04/25/2024] [Indexed: 04/29/2024] Open
Abstract
Among the several animal models of α-synucleinopathies, the well-known viral vector-mediated delivery of wild-type or mutated (A53T) α-synuclein requires new tools to increase the lesion in mice and follow up in vivo expression. To this end, we developed a bioluminescent expression reporter of the human A53T-α-synuclein gene using the NanoLuc system into an AAV2/9, embedded or not in a fibroin solution to stabilise its expression in space and time. We first verified the expression of the fused protein in vitro on transfected cells by bioluminescence and Western blotting. Next, two groups of C57Bl6Jr mice were unilaterally injected with the AAV-NanoLuc-human-A53T-α-synuclein above the substantia nigra combined (or not) with fibroin. We first show that the in vivo cerebral bioluminescence signal was more intense in the presence of fibroin. Using immunohistochemistry, we find that the human-A53T-α-synuclein protein is more restricted to the ipsilateral side with an overall greater magnitude of the lesion when fibroin was added. However, we also detected a bioluminescence signal in peripheral organs in both conditions, confirmed by the presence of viral DNA corresponding to the injected AAV in the liver using qPCR.
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Affiliation(s)
- Claire Mazzocco
- Institut des Maladies Neurodégénératives, UMR 5293, Univ. de Bordeaux, 33000, Bordeaux, France
- Institut des Maladies Neurodégénératives, UMR 5293, CNRS, 33000, Bordeaux, France
| | - Coralie Genevois
- VIVOPTIC-TBM-Core Univ Bordeaux, UAR 3427, 33000, Bordeaux, France
| | - Qin Li
- Motac Neuroscience, Manchester, M15 6WE, UK
| | - Evelyne Doudnikoff
- Institut des Maladies Neurodégénératives, UMR 5293, Univ. de Bordeaux, 33000, Bordeaux, France
- Institut des Maladies Neurodégénératives, UMR 5293, CNRS, 33000, Bordeaux, France
| | - Nathalie Dutheil
- Institut des Maladies Neurodégénératives, UMR 5293, Univ. de Bordeaux, 33000, Bordeaux, France
- Institut des Maladies Neurodégénératives, UMR 5293, CNRS, 33000, Bordeaux, France
| | | | - Marie-Laure Arotcarena
- Institut des Maladies Neurodégénératives, UMR 5293, Univ. de Bordeaux, 33000, Bordeaux, France
- Institut des Maladies Neurodégénératives, UMR 5293, CNRS, 33000, Bordeaux, France
| | - Erwan Bezard
- Institut des Maladies Neurodégénératives, UMR 5293, Univ. de Bordeaux, 33000, Bordeaux, France.
- Institut des Maladies Neurodégénératives, UMR 5293, CNRS, 33000, Bordeaux, France.
- Motac Neuroscience, Manchester, M15 6WE, UK.
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Patrigeon M, Brot S, Bonnet ML, Belnoue L, Gaillard A. Host-to-graft Propagation of α-synuclein in a Mouse Model of Parkinson's Disease: Intranigral Versus Intrastriatal Transplantation. Transplantation 2023; 107:e201-e212. [PMID: 36944598 DOI: 10.1097/tp.0000000000004565] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/23/2023]
Abstract
BACKGROUND Parkinson's disease (PD) is a progressive neurodegenerative disorder characterized by the loss of dopaminergic (DA) neurons in the substantia nigra pars compacta (SNpc) and by the accumulation of misfolded α-synuclein (α-syn) in Lewy bodies. Ectopic transplantation of human fetal ventral mesencephalic DA neurons into the striatum of PD patients have provided proof-of-principle for the cell replacement strategy in this disorder. However, 10 to 22 y after transplantation, 1% to 27% of grafted neurons contained α-syn aggregates similar to those observed in the host brain. We hypothesized that intrastriatal grafts are more vulnerable to α-syn propagation because the striatum is not the ontogenic site of nigral DA neurons and represents an unfavorable environment for transplanted neurons. Here, we compared the long-term host-to-graft propagation of α-syn in 2 transplantation sites: the SNpc and the striatum. METHODS Two mouse models of PD were developed by injecting adeno-associated-virus2/9-human α-syn A53T into either the SNpc or the striatum of C57BL/6 mice. Mouse fetal ventral mesencephalic DA progenitors were grafted into the SNpc or into the striatum of SNpc or striatum of α-syn injected mice, respectively. RESULTS First, we have shown a degeneration of the nigrostriatal pathway associated with motor deficits after nigral but not striatal adeno-associated-virus-hαsyn A53T injection. Second, human α-syn preferentially accumulates in striatal grafts compared to nigral grafts. However, no differences were observed for phosphorylated α-syn, a marker of pathological α-syn aggregates. CONCLUSIONS Taken together, our results suggest that the ectopic site of the transplantation impacts the host-to-graft transmission of α-syn.
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Affiliation(s)
- Maëlig Patrigeon
- Laboratoire de Neurosciences Expérimentales et Cliniques, Université de Poitiers, Poitiers Cedex, France
| | - Sébastien Brot
- Laboratoire de Neurosciences Expérimentales et Cliniques, Université de Poitiers, Poitiers Cedex, France
| | - Marie-Laure Bonnet
- Laboratoire de Neurosciences Expérimentales et Cliniques, Université de Poitiers, Poitiers Cedex, France
- CHU Poitiers, Poitiers, France
| | - Laure Belnoue
- Laboratoire de Neurosciences Expérimentales et Cliniques, Université de Poitiers, Poitiers Cedex, France
- CHU Poitiers, Poitiers, France
| | - Afsaneh Gaillard
- Laboratoire de Neurosciences Expérimentales et Cliniques, Université de Poitiers, Poitiers Cedex, France
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Stone D, Aubert M, Jerome KR. Adeno-associated virus vectors and neurotoxicity-lessons from preclinical and human studies. Gene Ther 2023:10.1038/s41434-023-00405-1. [PMID: 37165032 PMCID: PMC11247785 DOI: 10.1038/s41434-023-00405-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Revised: 04/12/2023] [Accepted: 04/20/2023] [Indexed: 05/12/2023]
Abstract
Over 15 years after hepatotoxicity was first observed following administration of an adeno-associated virus (AAV) vector during a hemophilia B clinical trial, recent reports of treatment-associated neurotoxicity in animals and humans have brought the potential impact of AAV-associated toxicity back to prominence. In both pre-clinical studies and clinical trials, systemic AAV administration has been associated with neurotoxicity in peripheral nerve ganglia and spinal cord. Neurological signs have also been seen following direct AAV injection into the brain, both in non-human primates and in a clinical trial for late infantile Batten disease. Neurotoxic events appear variable across species, and preclinical animal studies do not fully predict clinical observations. Accumulating data suggest that AAV-associated neurotoxicity may be underdiagnosed and may differ between species in terms of frequency and/or severity. In this review, we discuss the different animal models that have been used to demonstrate AAV-associated neurotoxicity, its potential causes and consequences, and potential approaches to blunt AAV-associated neurotoxicity.
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Affiliation(s)
- Daniel Stone
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Center, Seattle, WA, USA.
| | - Martine Aubert
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Center, Seattle, WA, USA.
| | - Keith R Jerome
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Center, Seattle, WA, USA.
- Department of Laboratory Medicine and Pathology, University of Washington, Seattle, WA, USA.
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Sun X, Li X, Zhang L, Zhang Y, Qi X, Wang S, Qin C. Longitudinal assessment of motor function following the unilateral intrastriatal 6-hydroxydopamine lesion model in mice. Front Behav Neurosci 2022; 16:982218. [PMID: 36505729 PMCID: PMC9730519 DOI: 10.3389/fnbeh.2022.982218] [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: 06/30/2022] [Accepted: 11/04/2022] [Indexed: 11/27/2022] Open
Abstract
Introduction Despite the widespread use of the unilateral striatal 6-hydroxydopamine (6-OHDA) lesion model in mice in recent years, the stability of behavioral deficits in the 6-OHDA striatal mouse model over time is not yet clear, raising concerns about using this model to evaluate a compound's long-term therapeutic effects. Materials and methods In the current study, mice were tested at regular intervals in the cylinder test and gait analysis beginning 3 days after 6-OHDA injection of 4 and 8 μg and lasting until 56 days post-lesion. Apomorphine-induced rotational test and rotarod test were also performed on Day 23 and 43 post-lesion, respectively. Immunohistochemistry for dopaminergic neurons stained by tyrosine hydroxylase (TH) was also performed. Results Our results showed that both the 4 and 8 μg 6-OHDA lesion groups exhibited forelimb use asymmetry with a preference for the ipsilateral (injection) side on Day 3 and until Day 21 post-lesion, but did not show forelimb asymmetry on Day 28 to 56 post-lesion. The 8 μg 6-OHDA lesion group still exhibited forelimb asymmetry on Day 28 and 42 post-lesion, but not on Day 56. The gait analysis showed that the contralateral front and hind step cycles increased from Day 3 to 42 post-lesion and recovered on Day 56 post-lesion. In addition, our results displayed a dose-dependent reduction in TH+ cells and TH+ fibers, as well as dose-dependent apomorphine-induced rotations. In the rotarod test, the 8 μg 6-OHDA lesion group, but not the 4 μg group, decreased the latency to fall on the rotarod on Day 43 post-lesion. Conclusion In summary, unilateral striatal 6-OHDA injections of 4 and 8 μg induced spontaneous motor impairment in mice, which partially recovered starting on Day 28 post-lesion. Forced motor deficits were observed in the 8 g 6-OHDA lesion group, which remained stable on Day 43 post-lesion. In addition, the rotarod test and apomorphine-induced rotational test can distinguish between lesions of different extents and are useful tools for the assessment of functional recovery in studies screening novel potential therapies.
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Affiliation(s)
- Xiuping Sun
- National Health Commission Key Laboratory of Human Disease Comparative Medicine, Beijing Engineering Research Center for Experimental Animal Models of Human Critical Diseases, National Center of Technology Innovation for Animal Model, Institute of Laboratory Animal Sciences, Chinese Academy of Medical Sciences (CAMS) & Peking Union Medical College (PUMC), Beijing, China
| | - Xianglei Li
- National Health Commission Key Laboratory of Human Disease Comparative Medicine, Beijing Engineering Research Center for Experimental Animal Models of Human Critical Diseases, National Center of Technology Innovation for Animal Model, Institute of Laboratory Animal Sciences, Chinese Academy of Medical Sciences (CAMS) & Peking Union Medical College (PUMC), Beijing, China
| | - Ling Zhang
- National Health Commission Key Laboratory of Human Disease Comparative Medicine, Beijing Engineering Research Center for Experimental Animal Models of Human Critical Diseases, National Center of Technology Innovation for Animal Model, Institute of Laboratory Animal Sciences, Chinese Academy of Medical Sciences (CAMS) & Peking Union Medical College (PUMC), Beijing, China
| | - Yu Zhang
- National Health Commission Key Laboratory of Human Disease Comparative Medicine, Beijing Engineering Research Center for Experimental Animal Models of Human Critical Diseases, National Center of Technology Innovation for Animal Model, Institute of Laboratory Animal Sciences, Chinese Academy of Medical Sciences (CAMS) & Peking Union Medical College (PUMC), Beijing, China
| | - Xiaolong Qi
- National Health Commission Key Laboratory of Human Disease Comparative Medicine, Beijing Engineering Research Center for Experimental Animal Models of Human Critical Diseases, National Center of Technology Innovation for Animal Model, Institute of Laboratory Animal Sciences, Chinese Academy of Medical Sciences (CAMS) & Peking Union Medical College (PUMC), Beijing, China
| | - Siyuan Wang
- National Health Commission Key Laboratory of Human Disease Comparative Medicine, Beijing Engineering Research Center for Experimental Animal Models of Human Critical Diseases, National Center of Technology Innovation for Animal Model, Institute of Laboratory Animal Sciences, Chinese Academy of Medical Sciences (CAMS) & Peking Union Medical College (PUMC), Beijing, China
| | - Chuan Qin
- National Health Commission Key Laboratory of Human Disease Comparative Medicine, Beijing Engineering Research Center for Experimental Animal Models of Human Critical Diseases, National Center of Technology Innovation for Animal Model, Institute of Laboratory Animal Sciences, Chinese Academy of Medical Sciences (CAMS) & Peking Union Medical College (PUMC), Beijing, China,Changping National Laboratory (CPNL), Beijing, China,*Correspondence: Chuan Qin,
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Gu Z, Yin Z, Song P, Wu Y, He Y, Zhu M, Wu Z, Zhao S, Huang H, Wang H, Tong C, Qi Z. Safety and biodistribution of exosomes derived from human induced pluripotent stem cells. Front Bioeng Biotechnol 2022; 10:949724. [PMID: 36091443 PMCID: PMC9461140 DOI: 10.3389/fbioe.2022.949724] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2022] [Accepted: 07/27/2022] [Indexed: 12/03/2022] Open
Abstract
As a new cell-free therapy, exosomes have provided new ideas for the treatment of various diseases. Human induced pluripotent stem cells (hiPSCs) cannot be used in clinical trials because of tumorigenicity, but the exosomes derived from hiPSCs may combine the advantages of iPSC pluripotency and the nanoscale size of exosomes while avoiding tumorigenicity. Currently, the safety and biodistribution of hiPSC-exosomes in vivo are unclear. Here, we investigated the effects of hiPSC-exosomes on hemolysis, DNA damage, and cytotoxicity through cell experiments. We also explored the safety of vein injection of hiPSC-exosomes in rabbits and rats. Differences in organ distribution after nasal administration were compared in normal and Parkinson’s disease model mice. This study may provide support for clinical therapy and research of intravenous and nasal administration of hiPSC-exosomes.
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Affiliation(s)
- Zhewei Gu
- Medical College, Guangxi University, Nanning, China
| | - Zhiyu Yin
- Medical College, Guangxi University, Nanning, China
| | - Pengbo Song
- Medical College, Guangxi University, Nanning, China
| | - Ying Wu
- Medical College, Guangxi University, Nanning, China
| | - Ying He
- Medical College, Guangxi University, Nanning, China
| | - Maoshu Zhu
- Medical College, Guangxi University, Nanning, China
| | - Zhengxin Wu
- Medical College, Guangxi University, Nanning, China
| | - Sicheng Zhao
- Medical College, Guangxi University, Nanning, China
| | - Hongri Huang
- GuangXi TaiMeiRenSheng Biotechnology Co., LTD., Nanning, China
| | - Huihuang Wang
- GuangXi TaiMeiRenSheng Biotechnology Co., LTD., Nanning, China
| | - Cailing Tong
- Biotechcomer Co., Ltd., Xiamen, China
- *Correspondence: Cailing Tong, ; Zhongquan Qi,
| | - Zhongquan Qi
- Medical College, Guangxi University, Nanning, China
- *Correspondence: Cailing Tong, ; Zhongquan Qi,
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Adeno-Associated Viral Vectors as Versatile Tools for Parkinson's Research, Both for Disease Modeling Purposes and for Therapeutic Uses. Int J Mol Sci 2021; 22:ijms22126389. [PMID: 34203739 PMCID: PMC8232322 DOI: 10.3390/ijms22126389] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Revised: 06/09/2021] [Accepted: 06/11/2021] [Indexed: 12/17/2022] Open
Abstract
It is without any doubt that precision medicine therapeutic strategies targeting neurodegenerative disorders are currently witnessing the spectacular rise of newly designed approaches based on the use of viral vectors as Trojan horses for the controlled release of a given genetic payload. Among the different types of viral vectors, adeno-associated viruses (AAVs) rank as the ones most commonly used for the purposes of either disease modeling or for therapeutic strategies. Here, we reviewed the current literature dealing with the use of AAVs within the field of Parkinson’s disease with the aim to provide neuroscientists with the advice and background required when facing a choice on which AAV might be best suited for addressing a given experimental challenge. Accordingly, here we will be summarizing some insights on different AAV serotypes, and which would be the most appropriate AAV delivery route. Next, the use of AAVs for modeling synucleinopathies is highlighted, providing potential readers with a landscape view of ongoing pre-clinical and clinical initiatives pushing forward AAV-based therapeutic approaches for Parkinson’s disease and related synucleinopathies.
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