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Li J, Li N, Wei J, Feng C, Chen Y, Chen T, Ai Z, Zhu X, Ji W, Li T. Genetically engineered mesenchymal stem cells with dopamine synthesis for Parkinson's disease in animal models. NPJ Parkinsons Dis 2022; 8:175. [PMID: 36550118 PMCID: PMC9780305 DOI: 10.1038/s41531-022-00440-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2022] [Accepted: 12/05/2022] [Indexed: 12/24/2022] Open
Abstract
Although striatal delivery of three critical genes for dopamine synthesis by viruses is a potential clinical approach for treating Parkinson's disease (PD), the approach makes it difficult to finely control dopamine secretion amounts and brings safety concerns. Here, we generate genetically engineered mesenchymal stem cells encoding three critical genes for dopamine synthesis (DOPA-MSCs). DOPA-MSCs retain their MSC identity and stable ability to secrete dopamine during passaging. Following transplantation, DOPA-MSCs reinstate striatal dopamine levels and correct motor function in PD rats. Importantly, after grafting into the caudate and putamen, DOPA-MSCs provide homotopic reconstruction of midbrain dopamine pathways by restoring striatal dopamine levels, and safely and long-term (up to 51 months) correct motor disorders and nonmotor deficits in acute and chronic PD rhesus monkey models of PD even with advanced PD symptoms. The long-term benefits and safety results support the idea that the development of dopamine-synthesized engineered cell transplantation is an important strategy for treating PD.
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Affiliation(s)
- Jun Li
- grid.218292.20000 0000 8571 108XState Key Laboratory of Primate Biomedical Research, Institute of Primate Translational Medicine, Kunming University of Science and Technology, 650500 Kunming, Yunnan China ,grid.218292.20000 0000 8571 108XYunnan Key Laboratory of Primate Biomedical Research, 650500 Kunming, Yunnan China
| | - Nan Li
- grid.218292.20000 0000 8571 108XState Key Laboratory of Primate Biomedical Research, Institute of Primate Translational Medicine, Kunming University of Science and Technology, 650500 Kunming, Yunnan China ,grid.218292.20000 0000 8571 108XYunnan Key Laboratory of Primate Biomedical Research, 650500 Kunming, Yunnan China
| | - Jingkuan Wei
- grid.218292.20000 0000 8571 108XState Key Laboratory of Primate Biomedical Research, Institute of Primate Translational Medicine, Kunming University of Science and Technology, 650500 Kunming, Yunnan China ,grid.218292.20000 0000 8571 108XYunnan Key Laboratory of Primate Biomedical Research, 650500 Kunming, Yunnan China
| | - Chun Feng
- grid.218292.20000 0000 8571 108XState Key Laboratory of Primate Biomedical Research, Institute of Primate Translational Medicine, Kunming University of Science and Technology, 650500 Kunming, Yunnan China ,grid.218292.20000 0000 8571 108XYunnan Key Laboratory of Primate Biomedical Research, 650500 Kunming, Yunnan China
| | - Yanying Chen
- grid.218292.20000 0000 8571 108XState Key Laboratory of Primate Biomedical Research, Institute of Primate Translational Medicine, Kunming University of Science and Technology, 650500 Kunming, Yunnan China ,grid.218292.20000 0000 8571 108XYunnan Key Laboratory of Primate Biomedical Research, 650500 Kunming, Yunnan China
| | - Tingwei Chen
- grid.218292.20000 0000 8571 108XState Key Laboratory of Primate Biomedical Research, Institute of Primate Translational Medicine, Kunming University of Science and Technology, 650500 Kunming, Yunnan China ,grid.218292.20000 0000 8571 108XYunnan Key Laboratory of Primate Biomedical Research, 650500 Kunming, Yunnan China
| | - Zongyong Ai
- grid.218292.20000 0000 8571 108XState Key Laboratory of Primate Biomedical Research, Institute of Primate Translational Medicine, Kunming University of Science and Technology, 650500 Kunming, Yunnan China ,grid.218292.20000 0000 8571 108XYunnan Key Laboratory of Primate Biomedical Research, 650500 Kunming, Yunnan China
| | - Xiaoqing Zhu
- grid.218292.20000 0000 8571 108XState Key Laboratory of Primate Biomedical Research, Institute of Primate Translational Medicine, Kunming University of Science and Technology, 650500 Kunming, Yunnan China ,grid.218292.20000 0000 8571 108XYunnan Key Laboratory of Primate Biomedical Research, 650500 Kunming, Yunnan China
| | - Weizhi Ji
- grid.218292.20000 0000 8571 108XState Key Laboratory of Primate Biomedical Research, Institute of Primate Translational Medicine, Kunming University of Science and Technology, 650500 Kunming, Yunnan China ,grid.218292.20000 0000 8571 108XYunnan Key Laboratory of Primate Biomedical Research, 650500 Kunming, Yunnan China
| | - Tianqing Li
- grid.218292.20000 0000 8571 108XState Key Laboratory of Primate Biomedical Research, Institute of Primate Translational Medicine, Kunming University of Science and Technology, 650500 Kunming, Yunnan China ,grid.218292.20000 0000 8571 108XYunnan Key Laboratory of Primate Biomedical Research, 650500 Kunming, Yunnan China
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Sun Y, Liu C, Chen Z, Li B, Lv Z, Wang J, Lou J, Tang J, Wang Y, Zhang G, Liu X. A phase 2, open-label, multi-center study to evaluate the efficacy and safety of 99mTc-TRODAT-1 SPECT to detect Parkinson’s disease. Ann Nucl Med 2019; 34:31-37. [DOI: 10.1007/s12149-019-01412-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2019] [Accepted: 10/07/2019] [Indexed: 11/29/2022]
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Abstract
Positron emission tomography (PET) has revealed key insights into the pathophysiology of movement disorders. This paper will focus on how PET investigations of pathophysiology are particularly relevant to Parkinson disease, a neurodegenerative condition usually starting later in life marked by a varying combination of motor and nonmotor deficits. Various molecular imaging modalities help to determine what changes in brain herald the onset of pathology; can these changes be used to identify presymptomatic individuals who may be appropriate for to-be-developed treatments that may forestall onset of symptoms or slow disease progression; can PET act as a biomarker of disease progression; can molecular imaging help enrich homogenous cohorts for clinical studies; and what other pathophysiologic mechanisms relate to nonmotor manifestations. PET methods include measurements of regional cerebral glucose metabolism and blood flow, selected receptors, specific neurotransmitter systems, postsynaptic signal transducers, and abnormal protein deposition. We will review each of these methodologies and how they are relevant to important clinical issues pertaining to Parkinson disease.
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Affiliation(s)
- Baijayanta Maiti
- Department of Neurology, Washington University in St. Louis, St Louis, MO.
| | - Joel S Perlmutter
- Department of Neurology, Washington University in St. Louis, St Louis, MO; Department of Radiology, Washington University in St. Louis, St Louis, MO; Department of Neuroscience, Washington University in St. Louis, St Louis, MO; Department of Physical Therapy, Washington University in St. Louis, St Louis, MO; Department of Occupational Therapy, Washington University in St. Louis, St Louis, MO
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Autologous transplantation of GDNF-expressing mesenchymal stem cells protects against MPTP-induced damage in cynomolgus monkeys. Sci Rep 2013; 3:2786. [PMID: 24071770 PMCID: PMC4070584 DOI: 10.1038/srep02786] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2013] [Accepted: 09/11/2013] [Indexed: 12/27/2022] Open
Abstract
Glial cell-derived neurotrophic factor (GDNF) has shown beneficial effects in models of Parkinson's disease. The mild results observed in the double-blind clinical trial by intraputamenal infusion of recombinant GDNF proteins warrant a search for alternative delivery methods. In this study, we investigated the function of autologous mesenchymal stem cells (MSCs) expressing GDNF (GDNF-MSCs) for protection against MPTP-induced injury in cynomolgus monkeys. MSCs were obtained from the bone marrow of individual monkeys and gene-modified to express GDNF. Following unilateral engraftment of GDNF-MSCs into the striatum and substantia nigra, the animals were challenged with MPTP to induce a stable systemic Parkinsonian state. The motor functions were spared in the contralateral limbs of monkeys receiving GDNF-MSCs, but not in those receiving MSCs alone. In the striatum of the grafted hemisphere, dopamine levels were higher and dopamine uptake was enhanced. The results suggest that autologous MSCs may be a safe vehicle to deliver GDNF for enhancing nigro-striatum functions.
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SPECT molecular imaging in Parkinson's disease. J Biomed Biotechnol 2012; 2012:412486. [PMID: 22529704 PMCID: PMC3321451 DOI: 10.1155/2012/412486] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2012] [Accepted: 01/29/2012] [Indexed: 11/18/2022] Open
Abstract
Parkinson's disease (PD) is a common disorder, and the diagnosis of Parkinson's disease is clinical and relies on the presence of characteristic motor symptoms. The accuracy of the clinical diagnosis of PD is still limited. Functional neuroimaging using SPECT technique is helpful in patients with first signs of parkinsonism. The changes detected may reflect the disease process itself and/or compensatory responses to the disease, or they may arise in association with disease- and/or treatment-related complications. This paper addresses the value of SPECT in early differential diagnosis of PD and its potential as a sensitive tool to assess the pathophysiology and progression, as well as the therapeutic efficacy of PD.
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Li IH, Huang WS, Yeh CB, Liao MH, Chen CC, Shen LH, Liu JC, Ma KH. Dual-isotope single-photon emission computed tomography for dopamine and serotonin transporters in normal and Parkinsonian monkey brains. Nucl Med Biol 2009; 36:605-11. [PMID: 19647166 DOI: 10.1016/j.nucmedbio.2009.03.003] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2008] [Revised: 01/20/2009] [Accepted: 03/16/2009] [Indexed: 12/21/2022]
Abstract
INTRODUCTION Parkinson's disease (PD) affects both dopaminergic and serotonergic systems. In this study, we simultaneously evaluated dopamine and serotonin transporters in primates using dual-isotope single-photon emission computed tomography (SPECT) imaging and compared the results with traditional single-isotope imaging. METHODS Four healthy and one 6-OHDA-induced PD monkeys were used for this study. SPECT was performed over 4 h after individual or simultaneous injection of [(99m)Tc]TRODAT-1 (a dopamine transporter imaging agent) and [(123)I]ADAM (a serotonin transporter imaging agent). RESULTS The results showed that the image quality and uptake ratios in different brain regions were comparable between single- and dual-isotope studies. The striatal [(99m)Tc]TRODAT-1 uptake in the PD monkey was markedly lower than that in normal monkeys. The uptake of [(123)I]ADAM in the midbrain of the PD monkey was comparable to that in the normal monkeys, but there were decreased uptakes in the thalamus and striatum of the PD monkey. CONCLUSIONS Our results suggest that dual-isotope SPECT using [(99m)Tc]TRODAT-1 and [(123)I]ADAM can simultaneously evaluate changes in dopaminergic and serotonergic systems in a PD model.
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Affiliation(s)
- I-Hsun Li
- Graduate Institute of Medical Sciences, National Defense Medical Center, Taipei 114, Taiwan
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Ma KH, Huang WS, Huang SY, Cheng CY, Chen CY, Shen LH, Liu JC, Fu YK. Imaging serotonin transporters using [123I]ADAM SPECT in a parkinsonian primate model. Appl Radiat Isot 2008; 66:1799-803. [PMID: 18703341 DOI: 10.1016/j.apradiso.2008.06.033] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2007] [Revised: 06/02/2008] [Accepted: 06/16/2008] [Indexed: 10/21/2022]
Abstract
Parkinson's disease (PD) affects multiple neurotransmitter systems. The purpose of this study was to investigate differences in the serotonin transport system between normal and parkinsonian monkeys using 2-([2-([di-methylamino]methyl)phenyl]thio)-5-[(123)I] iodophenyl-amine([(123)I]ADAM), a serotonin transporters (SERT) radioligand. The brain single photon emission computed tomography (SPECT) was performed on two normal and one parkinsonian monkey. The parkinsonian monkey was induced by bilateral injection of 6-hydroxydopamine (6-OHDA) into the medial forebrain bundle under magnetic resonance imaging (MRI) guidance. Each monkey underwent two [(99m)Tc] TRODAT-1 (a dopamine transporters imaging agent) and two [(123)I] ADAM brain SPECT scans. After a bolus injection of the radioligand, the SPECT data were acquired over 4h using a dual-head gamma camera equipped with ultra-high resolution fan-beam collimators. The striatal uptake of [(99m)Tc]TRODAT-1 was 46% lower in the parkinsonian monkey than those of normal monkeys at 210-240 min post-injection. [(123)I]ADAM uptake in the midbrain of the parkinsonian monkey was comparable to those of the controls. The uptakes of [(123)I]ADAM in the striatum, thalamus, and frontal cortex of the parkinsonian monkey, were 31%, 31%, and 23% lower than those of normal monkeys at 210-240 min post-injection, respectively. Our results suggest that [(123)I]ADAM SPECT has potential for evaluating the serotonin transporter changes in human PD.
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Affiliation(s)
- Kuo-Hsing Ma
- Department of Biology and Anatomy, National Defense Medical Center, Neihu, Taipei, Taiwan.
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