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Mappa I, Marra MC, Patelli C, Lu JLA, D'Antonio F, Rizzo G. Effects of uterine Doppler on midbrain growth and cortical development in late onset fetal growth restricted fetuses: a prospective cross-sectional study. J Matern Fetal Neonatal Med 2024; 37:2318604. [PMID: 38373847 DOI: 10.1080/14767058.2024.2318604] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/21/2024]
Abstract
OBJECTIVE To investigate midbrain growth, including corpus callusum (CC), cerebellar vermis (CV) and cortical development in late fetal growth restriction (FGR) depending on uterine artery (UtA) Pulsatility Index (PI) values. METHODS This was a prospective study including singleton fetuses with late FGR characterized by abnormal cerebral placental ratio (CPR). According to UtA PI values, the FGR fetuses were subdivided into normal ≤95th centile) and abnormal (>95th centile). Neurosonography was performed at 33-44 weeks of gestations to assess CC and CV lengths and the depth of Sylvian fissure (SF), parieto-occipital (POF) and calcarine fissures (CF). Neurosonographic variables were normalized for fetal head circumference size. RESULTS The study cohort included 60 fetuses with late FGR, 39 with normal UtA PI and 21 with abnormal PI values. The latter group showed significant differences in CC (median (interquartile range) normal 35.9 (28.49-45.53) vs abnormal UtA PI 25.31(19.76-35.13) mm; p < 0.0022), CV (normal 25.78 (18.19-29.35) abnormal UtA PI 17.03 (14.07-24.16)mm; p = 0.0067); SF (normal 10.58 (8.99-11.97)vs abnormal UtA PI 7.44 (6.23-8.46) mm; p < 0.0001), POF (normal 6.85 (6.35-8.14) vs abnormal UtA PI 4.82 (3.46-7.75) mm; p < = 0.0184) and CF (normal 04.157 (2.85-5.41) vs abnormal UtA PI 2.33 (2.49-4.01)); p < 0.0382). CONCLUSIONS Late onset FGR fetuses with abnormal UtA PI showed shorter CC and CV length and delayed cortical development compared to those with normal uterine PI. These findings support the existence of a link between abnormal brain development and changes in utero placental circulation.
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Affiliation(s)
- Ilenia Mappa
- Department of Obstetrics and Gynecology Fondazione Policlinico Tor Vergata, Università di Roma Tor Vergata, Roma, Italy
| | - Maria Chiara Marra
- Department of Obstetrics and Gynecology Fondazione Policlinico Tor Vergata, Università di Roma Tor Vergata, Roma, Italy
| | - Chiara Patelli
- Department of Obstetrics and Gynecology, Università di Chieti, Chieti, Italy
| | - Jia Li Angela Lu
- Department of Obstetrics and Gynecology Fondazione Policlinico Tor Vergata, Università di Roma Tor Vergata, Roma, Italy
| | - Francesco D'Antonio
- Department of Obstetrics and Gynecology, Università di Verona, Verona, Italy
| | - Giuseppe Rizzo
- Department of Obstetrics and Gynecology Fondazione Policlinico Tor Vergata, Università di Roma Tor Vergata, Roma, Italy
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Fava E, Colistra D, Fragale M, Cenzato M. A novel method of neurophysiological brainstem mapping in neurosurgery. J Neurosci Methods 2024; 405:110096. [PMID: 38428822 DOI: 10.1016/j.jneumeth.2024.110096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Revised: 02/03/2024] [Accepted: 02/22/2024] [Indexed: 03/03/2024]
Abstract
BACKGROUND Brainstem mapping with electrical stimulation allows functional identification of neural structures during resection of deep lesions. Single pulses or train of pulses are delivered to map cranial nerves and corticospinal tracts, respectively. NEW METHOD We introduce a hybrid stimulation technique for mapping the brainstem. The stimulus consists of an electrical single pulse followed by a short train of 3-5 pulses at 500 Hz, at an interval of 60-75 ms. The responses to this stimulation pattern are recorded from appropriate cranial and limb muscles. RESULTS Both the single pulse and the short train elicit electromyographic responses when motor fibers or motor nuclei of the cranial nerves are stimulated. Responses to the train but not to the preceding single pulse indicate activation of the descending motor tracts, in the mesencephalon and the pons. Conversely, in the medulla, limb responses to stimulation of the corticospinal tracts are elicited by a single pulse. Identification of the extra and intra-axial courses of the trigeminal motor and sensory fibers is possible by recording responses from the masseter and the tongue muscles. COMPARISON WITH EXISTING METHOD(S) To date, either a pulse or a train is delivered during brainstem mapping, switching from one to the other modality according to the expected target structure. This procedure can be time-consuming and may even lead to false negative responses to the stimulation, eventually leading to inaccurate neurosurgical procedures. CONCLUSIONS The novel hybrid pulse-train technique enhances the advantage of brainstem mapping procedure, minimizing pitfalls and improving patient safety.
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Affiliation(s)
- Enrica Fava
- Department of Neurosurgery, Great Metropolitan Hospital of Niguarda, University of Milano, Italy.
| | - Davide Colistra
- Department of Neurosurgery, Great Metropolitan Hospital of Niguarda, Milano, Italy
| | - Maria Fragale
- Department of Neurosurgery, Great Metropolitan Hospital of Niguarda, Milano, Italy
| | - Marco Cenzato
- Department of Neurosurgery, Great Metropolitan Hospital of Niguarda, Milano, Italy
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3
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McFarland MH, Machado MMF, Sansbury GM, Musselman KC, Boero G, O'Buckley TK, Carr CC, Morrow AL, Robinson DL. Acute, but not repeated, cocaine exposure alters allopregnanolone levels in the midbrain of male and female rats. Psychopharmacology (Berl) 2024; 241:1011-1025. [PMID: 38282126 DOI: 10.1007/s00213-024-06534-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Accepted: 01/13/2024] [Indexed: 01/30/2024]
Abstract
RATIONALE Multiple psychiatric disorders are associated with altered brain and serum levels of neuroactive steroids, including the endogenous GABAergic steroid, allopregnanolone. Clinically, chronic cocaine use was correlated with decreased levels of pregnenolone. Preclinically, the effect of acute cocaine on allopregnanolone levels in rodents has had mixed results, showing an increase or no change in allopregnanolone levels in some brain regions. OBJECTIVE We hypothesized that cocaine acutely increases allopregnanolone levels, but repeated cocaine exposure decreases allopregnanolone levels compared to controls. METHODS We performed two separate studies to determine how systemic administration of 15 mg/kg cocaine (1) acutely or (2) chronically alters brain (olfactory bulb, frontal cortex, dorsal striatum, and midbrain) and serum allopregnanolone levels in adult male and female Sprague-Dawley rats. RESULTS Cocaine acutely increased allopregnanolone levels in the midbrain, but not in olfactory bulb, frontal cortex, or dorsal striatum. Repeated cocaine did not persistently (24 h later) alter allopregnanolone levels in any region in either sex. However, allopregnanolone levels varied by sex across brain regions. In the acute study, we found that females had significantly higher allopregnanolone levels in serum and olfactory bulb relative to males. In the repeated cocaine study, females had significantly higher allopregnanolone levels in olfactory bulb, frontal cortex, and serum. Finally, acute cocaine increased allopregnanolone levels in the frontal cortex of females in proestrus, relative to non-proestrus stages. CONCLUSION Collectively these results suggest that allopregnanolone levels vary across brain regions and by sex, which may play a part in differential responses to cocaine by sex.
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Affiliation(s)
- Minna H McFarland
- Bowles Center for Alcohol Studies, Department of Psychiatry, University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA
| | - Meira M F Machado
- Robarts Research Institute, Western University, London, ON, N6A 5B7, Canada
| | - Griffin M Sansbury
- Bowles Center for Alcohol Studies, Department of Psychiatry, University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA
| | - Kate C Musselman
- Bowles Center for Alcohol Studies, Department of Psychiatry, University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA
| | - Giorgia Boero
- Bowles Center for Alcohol Studies, Department of Psychiatry, University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA
| | - Todd K O'Buckley
- Bowles Center for Alcohol Studies, Department of Psychiatry, University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA
| | - Crystal C Carr
- Department of Psychology, Wofford College, Spartanburg, SC, 29303, USA
| | - A Leslie Morrow
- Bowles Center for Alcohol Studies, Department of Psychiatry, University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA
| | - Donita L Robinson
- Bowles Center for Alcohol Studies, Department of Psychiatry, University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA.
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Fasciani I, Petragnano F, Bono F, Aloisi G, Mutti V, Pardini C, Carli M, Scarselli M, Vaglini F, Angelucci A, Fiorentini C, Lozzi L, Missale C, Maggio R, Rossi M. In-vitro Approaches to Investigate the Detrimental Effect of Light on Dopaminergic Neurons. Neuroscience 2024; 544:104-116. [PMID: 38244669 DOI: 10.1016/j.neuroscience.2024.01.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2023] [Revised: 01/08/2024] [Accepted: 01/11/2024] [Indexed: 01/22/2024]
Abstract
Our recent study revealed that fluorescent lamp light can penetrate deep into the brain of mice and rats leading to the development of typical histological characteristics associated with Parkinson's disease such as the loss of dopamine neurons in the substantia nigra. Monochromatic LED lights were thus used in this work to deepen our knowledge on the effects of the major wavelength peaks of fluorescent light on mouse and human dopaminergic cells. In particular, we exposed immortalized dopaminergic MN9D neuronal cells, primary cultures of mouse mesencephalic dopaminergic cells and human dopaminergic neurons differentiated from induced pluripotent stem cells (hiPSC) to different LED light wavelengths. We found that chronic exposure to LED light reduced overall undifferentiated MN9D cell number, with the most significant effects observed at wavelengths of 485 nm and 610 nm. Moreover, LED light especially at 610 nm was able to negatively impact on the survival of mouse mesencephalic dopaminergic cells and of human dopaminergic neurons derived from hiPSC. Notably, differentiated MN9D dopaminergic cells, which closely resemble mature dopamine neuronal phenotype, acutely exposed for 3 h at 610 nm, showed a clear increase in ROS production and cytotoxicity compared to controls undifferentiated MN9D cells. These increases were even more pronounced by the co-treatment with the oxidative agent H2O2. Collectively, these findings suggest that specific wavelengths, particularly those capable of penetrating deep into the brain, could potentially pose an environmental hazard in relation to Parkinson's disease.
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Affiliation(s)
- Irene Fasciani
- Department of Biotechnological and Applied Clinical Sciences, University of L'Aquila, 67100 L'Aquila, Italy
| | - Francesco Petragnano
- Department of Biotechnological and Applied Clinical Sciences, University of L'Aquila, 67100 L'Aquila, Italy
| | - Federica Bono
- Section of Pharmacology, Department of Molecular and Translational Medicine, University of Brescia, Viale Europa 11, 25123 Brescia, Italy
| | - Gabriella Aloisi
- Department of Biotechnological and Applied Clinical Sciences, University of L'Aquila, 67100 L'Aquila, Italy
| | - Veronica Mutti
- Section of Pharmacology, Department of Molecular and Translational Medicine, University of Brescia, Viale Europa 11, 25123 Brescia, Italy
| | - Carla Pardini
- Department of Translational Research and New Technologies in Medicine and Surgery, University of Pisa, Pisa, Italy
| | - Marco Carli
- Department of Translational Research and New Technologies in Medicine and Surgery, University of Pisa, Pisa, Italy
| | - Marco Scarselli
- Department of Translational Research and New Technologies in Medicine and Surgery, University of Pisa, Pisa, Italy
| | - Francesca Vaglini
- Department of Translational Research and New Technologies in Medicine and Surgery, University of Pisa, Pisa, Italy
| | - Adriano Angelucci
- Department of Biotechnological and Applied Clinical Sciences, University of L'Aquila, 67100 L'Aquila, Italy
| | - Chiara Fiorentini
- Section of Pharmacology, Department of Molecular and Translational Medicine, University of Brescia, Viale Europa 11, 25123 Brescia, Italy
| | - Luca Lozzi
- Department of Physical and Chemical Science, University of L'Aquila, via Vetoio, Coppito, 67100 L'Aquila, Italy
| | - Cristina Missale
- Section of Pharmacology, Department of Molecular and Translational Medicine, University of Brescia, Viale Europa 11, 25123 Brescia, Italy
| | - Roberto Maggio
- Department of Biotechnological and Applied Clinical Sciences, University of L'Aquila, 67100 L'Aquila, Italy
| | - Mario Rossi
- Department of Biotechnological and Applied Clinical Sciences, University of L'Aquila, 67100 L'Aquila, Italy.
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Yaghmaeian Salmani B, Lahti L, Gillberg L, Jacobsen JK, Mantas I, Svenningsson P, Perlmann T. Transcriptomic atlas of midbrain dopamine neurons uncovers differential vulnerability in a Parkinsonism lesion model. eLife 2024; 12:RP89482. [PMID: 38587883 PMCID: PMC11001297 DOI: 10.7554/elife.89482] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/09/2024] Open
Abstract
Midbrain dopamine (mDA) neurons comprise diverse cells with unique innervation targets and functions. This is illustrated by the selective sensitivity of mDA neurons of the substantia nigra compacta (SNc) in patients with Parkinson's disease, while those in the ventral tegmental area (VTA) are relatively spared. Here, we used single nuclei RNA sequencing (snRNA-seq) of approximately 70,000 mouse midbrain cells to build a high-resolution atlas of mouse mDA neuron diversity at the molecular level. The results showed that differences between mDA neuron groups could best be understood as a continuum without sharp differences between subtypes. Thus, we assigned mDA neurons to several 'territories' and 'neighborhoods' within a shifting gene expression landscape where boundaries are gradual rather than discrete. Based on the enriched gene expression patterns of these territories and neighborhoods, we were able to localize them in the adult mouse midbrain. Moreover, because the underlying mechanisms for the variable sensitivities of diverse mDA neurons to pathological insults are not well understood, we analyzed surviving neurons after partial 6-hydroxydopamine (6-OHDA) lesions to unravel gene expression patterns that correlate with mDA neuron vulnerability and resilience. Together, this atlas provides a basis for further studies on the neurophysiological role of mDA neurons in health and disease.
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Affiliation(s)
| | - Laura Lahti
- Department of Cell and Molecular Biology, Karolinska InstitutetStockholmSweden
| | - Linda Gillberg
- Department of Cell and Molecular Biology, Karolinska InstitutetStockholmSweden
| | - Jesper Kjaer Jacobsen
- Department of Cell and Molecular Biology, Karolinska InstitutetStockholmSweden
- Department of Neurology, Karolinska University HospitalStockholmSweden
| | - Ioannis Mantas
- Department of Clinical Neuroscience, Karolinska InstitutetStockholmSweden
| | - Per Svenningsson
- Department of Clinical Neuroscience, Karolinska InstitutetStockholmSweden
| | - Thomas Perlmann
- Department of Cell and Molecular Biology, Karolinska InstitutetStockholmSweden
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Wang Y, Feng L, Ma A, Hao J, Zhang Y, Chen Y, Chen Z, Yu J, Liu Y, Liu C, Zhang Y, Wang C, Teng Z, Zhou J, Li T, Wang L, Fu B, Fu YV, Zhu L, Liang L, Cao J, Wang L, Zhou Q, Xiang AP, Hu B, Zhao T. Human midbrain dopaminergic progenitors. Cell Prolif 2024; 57:e13563. [PMID: 37881164 PMCID: PMC10984099 DOI: 10.1111/cpr.13563] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2023] [Accepted: 10/10/2023] [Indexed: 10/27/2023] Open
Abstract
Human midbrain dopaminergic progenitors (mDAPs) are one of the most representative cell types in both basic research and clinical applications. However, there are still many challenges for the preparation and quality control of mDAPs, such as the lack of standards. Therefore, the establishment of critical quality attributes and technical specifications for mDAPs is largely needed. "Human midbrain dopaminergic progenitor" jointly drafted and agreed upon by experts from the Chinese Society for Stem Cell Research, is the first guideline for human mDAPs in China. This standard specifies the technical requirements, test methods, inspection rules, instructions for usage, labelling requirements, packaging requirements, storage requirements, transportation requirements and waste disposal requirements for human mDAPs, which is applicable to the quality control for human mDAPs. It was originally released by the China Society for Cell Biology on 30 August 2022. We hope that the publication of this guideline will facilitate the institutional establishment, acceptance and execution of proper protocols, and accelerate the international standardization of human mDAPs for clinical development and therapeutic applications.
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Affiliation(s)
- Yu‐Kai Wang
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of ZoologyChinese Academy of SciencesBeijingChina
- Beijing Institute for Stem Cell and Regenerative MedicineBeijingChina
- Institute for Stem Cell and RegenerationChinese Academy of SciencesBeijingChina
- National Stem Cell Resource CenterChinese Academy of SciencesBeijingChina
| | - Lin Feng
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of ZoologyChinese Academy of SciencesBeijingChina
- National Stem Cell Resource CenterChinese Academy of SciencesBeijingChina
- University of Chinese Academy of SciencesBeijingChina
| | - Ai‐Jin Ma
- Chinese Society for Stem Cell ResearchShanghaiChina
- Beijing Technology and Business UniversityBeijingChina
| | - Jie Hao
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of ZoologyChinese Academy of SciencesBeijingChina
- Beijing Institute for Stem Cell and Regenerative MedicineBeijingChina
- Institute for Stem Cell and RegenerationChinese Academy of SciencesBeijingChina
- National Stem Cell Resource CenterChinese Academy of SciencesBeijingChina
- Chinese Society for Stem Cell ResearchShanghaiChina
| | - Ying Zhang
- Chinese Society for Stem Cell ResearchShanghaiChina
- Nuwacell Biotechnologies Co., Ltd., HefeiChina
| | - Yue‐Jun Chen
- Institute of Neuroscience, Key Laboratory of Neuroscience, CAS Center for Excellence in Brain Science and Intelligence TechnologyChinese Academy of SciencesShanghaiChina
- Shanghai Center for Brain Science and Brain‐Inspired Intelligence TechnologyShanghaiChina
| | - Zhi‐Guo Chen
- Center of Neural Injury and RepairBeijing Institute for Brain DisordersBeijingChina
- Cell Therapy Center, Beijing Institute of GeriatricsXuanwu Hospital Capital Medical University, National Clinical Research Center for Geriatric Diseases, Key Laboratory of Neurodegenerative Diseases, Ministry of EducationBeijingChina
| | - Jun‐Ying Yu
- Chinese Society for Stem Cell ResearchShanghaiChina
- Nuwacell Biotechnologies Co., Ltd., HefeiChina
| | - Yan Liu
- Institute for Stem Cell and Neural Regeneration, State Key Laboratory of Reproductive Medicine, School of PharmacyNanjing Medical UniversityNanjingChina
| | - Chang‐Mei Liu
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of ZoologyChinese Academy of SciencesBeijingChina
- Beijing Institute for Stem Cell and Regenerative MedicineBeijingChina
- Institute for Stem Cell and RegenerationChinese Academy of SciencesBeijingChina
- University of Chinese Academy of SciencesBeijingChina
| | - Yu Zhang
- Chinese Society for Stem Cell ResearchShanghaiChina
- Zephyrm Biotechnologies Co., Ltd., BeijingChina
| | - Chang‐Lin Wang
- Chinese Society for Stem Cell ResearchShanghaiChina
- China National Institute of StandardizationBeijingChina
| | - Zhao‐Qian Teng
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of ZoologyChinese Academy of SciencesBeijingChina
- Beijing Institute for Stem Cell and Regenerative MedicineBeijingChina
- Institute for Stem Cell and RegenerationChinese Academy of SciencesBeijingChina
- University of Chinese Academy of SciencesBeijingChina
| | - Jia‐Xi Zhou
- Chinese Society for Stem Cell ResearchShanghaiChina
- Institute of Hematology and Blood Diseases HospitalChinese Academy of Medical Sciences & Peking Union Medical CollegeBeijingChina
| | - Tian‐Qing Li
- Chinese Society for Stem Cell ResearchShanghaiChina
- State Key Laboratory of Primate Biomedical Research, Institute of Primate Translational MedicineKunming University of Science and TechnologyKunmingYunnanChina
- Yunnan Key Laboratory of Primate Biomedical ResearchKunmingYunnanChina
| | - Liu Wang
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of ZoologyChinese Academy of SciencesBeijingChina
- Beijing Institute for Stem Cell and Regenerative MedicineBeijingChina
- Institute for Stem Cell and RegenerationChinese Academy of SciencesBeijingChina
- University of Chinese Academy of SciencesBeijingChina
| | - Bo‐Qiang Fu
- Chinese Society for Stem Cell ResearchShanghaiChina
- National Institute of MetrologyBeijingChina
| | - Yu Vincent Fu
- University of Chinese Academy of SciencesBeijingChina
- State Key Laboratory of Microbial ResourcesInstitute of Microbiology, Chinese Academy of SciencesBeijingChina
| | - Li‐Jun Zhu
- Chinese Society for Stem Cell ResearchShanghaiChina
- Institute of Scientific and Technical Information of ChinaBeijingChina
| | - Ling‐Min Liang
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of ZoologyChinese Academy of SciencesBeijingChina
- National Stem Cell Resource CenterChinese Academy of SciencesBeijingChina
- University of Chinese Academy of SciencesBeijingChina
- Chinese Society for Stem Cell ResearchShanghaiChina
| | - Jia‐Ni Cao
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of ZoologyChinese Academy of SciencesBeijingChina
- Beijing Institute for Stem Cell and Regenerative MedicineBeijingChina
- Institute for Stem Cell and RegenerationChinese Academy of SciencesBeijingChina
- Chinese Society for Stem Cell ResearchShanghaiChina
| | - Lei Wang
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of ZoologyChinese Academy of SciencesBeijingChina
- Beijing Institute for Stem Cell and Regenerative MedicineBeijingChina
- Institute for Stem Cell and RegenerationChinese Academy of SciencesBeijingChina
- National Stem Cell Resource CenterChinese Academy of SciencesBeijingChina
- Chinese Society for Stem Cell ResearchShanghaiChina
| | - Qi Zhou
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of ZoologyChinese Academy of SciencesBeijingChina
- Beijing Institute for Stem Cell and Regenerative MedicineBeijingChina
- Institute for Stem Cell and RegenerationChinese Academy of SciencesBeijingChina
- University of Chinese Academy of SciencesBeijingChina
- Chinese Society for Stem Cell ResearchShanghaiChina
| | - Andy Peng Xiang
- Chinese Society for Stem Cell ResearchShanghaiChina
- Center for Stem Cell Biology and Tissue Engineering, Key Laboratory for Stem Cells and Tissue Engineering, Ministry of EducationSun Yat‐Sen UniversityGuangzhouChina
| | - Bao‐Yang Hu
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of ZoologyChinese Academy of SciencesBeijingChina
- Beijing Institute for Stem Cell and Regenerative MedicineBeijingChina
- Institute for Stem Cell and RegenerationChinese Academy of SciencesBeijingChina
- University of Chinese Academy of SciencesBeijingChina
| | - Tong‐Biao Zhao
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of ZoologyChinese Academy of SciencesBeijingChina
- Beijing Institute for Stem Cell and Regenerative MedicineBeijingChina
- Institute for Stem Cell and RegenerationChinese Academy of SciencesBeijingChina
- University of Chinese Academy of SciencesBeijingChina
- Chinese Society for Stem Cell ResearchShanghaiChina
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Liu M, Wang Y, Jiang L, Zhang X, Wang C, Zhang T. Research progress of the inferior colliculus: from Neuron, neural circuit to auditory disease. Brain Res 2024; 1828:148775. [PMID: 38244755 DOI: 10.1016/j.brainres.2024.148775] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Revised: 01/10/2024] [Accepted: 01/15/2024] [Indexed: 01/22/2024]
Abstract
The auditory midbrain, also known as the inferior colliculus (IC), serves as a crucial hub in the auditory pathway. Comprising diverse cell types, the IC plays a pivotal role in various auditory functions, including sound localization, auditory plasticity, sound detection, and sound-induced behaviors. Notably, the IC is implicated in several auditory central disorders, such as tinnitus, age-related hearing loss, autism and Fragile X syndrome. Accurate classification of IC neurons is vital for comprehending both normal and dysfunctional aspects of IC function. Various parameters, including dendritic morphology, neurotransmitter synthesis, potassium currents, biomarkers, and axonal targets, have been employed to identify distinct neuron types within the IC. However, the challenge persists in effectively classifying IC neurons into functional categories due to the limited clustering capabilities of most parameters. Recent studies utilizing advanced neuroscience technologies have begun to shed light on biomarker-based approaches in the IC, providing insights into specific cellular properties and offering a potential avenue for understanding IC functions. This review focuses on recent advancements in IC research, spanning from neurons and neural circuits to aspects related to auditory diseases.
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Affiliation(s)
- Mengting Liu
- Department of Otolaryngology Head and Neck Surgery, First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150001, China
| | - Yuyao Wang
- Department of Otolaryngology Head and Neck Surgery, First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150001, China
| | - Li Jiang
- Department of Otolaryngology Head and Neck Surgery, First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150001, China
| | - Xiaopeng Zhang
- Department of Otolaryngology Head and Neck Surgery, First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150001, China
| | - Chunrui Wang
- Department of Otolaryngology Head and Neck Surgery, First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150001, China
| | - Tianhong Zhang
- Department of Otolaryngology Head and Neck Surgery, First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150001, China.
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8
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Tehrani M, Shanbhag S, Huyck JJ, Patel R, Kazimierski D, Wenstrup JJ. The Mouse Inferior Colliculus Responds Preferentially to Non-Ultrasonic Vocalizations. eNeuro 2024; 11:ENEURO.0097-24.2024. [PMID: 38514192 PMCID: PMC11015948 DOI: 10.1523/eneuro.0097-24.2024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2024] [Accepted: 03/10/2024] [Indexed: 03/23/2024] Open
Abstract
The inferior colliculus (IC), the midbrain auditory integration center, analyzes information about social vocalizations and provides substrates for higher level processing of vocal signals. We used multichannel recordings to characterize and localize responses to social vocalizations and synthetic stimuli within the IC of female and male mice, both urethane anesthetized and unanesthetized. We compared responses to ultrasonic vocalizations (USVs) with other vocalizations in the mouse repertoire and related vocal responses to frequency tuning, IC subdivisions, and sex. Responses to lower frequency, broadband social vocalizations were widespread in IC, well represented throughout the tonotopic axis, across subdivisions, and in both sexes. Responses to USVs were much more limited. Although we observed some differences in tonal and vocal responses by sex and subdivision, representations of vocal responses by sex and subdivision were largely the same. For most units, responses to vocal signals occurred only when frequency response areas overlapped with spectra of the vocal signals. Since tuning to frequencies contained within the highest frequency USVs is limited (<15% of IC units), responses to these vocalizations are correspondingly limited (<5% of sound-responsive units). These results highlight a paradox of USV processing in some rodents: although USVs are the most abundant social vocalization, their representation and the representation of corresponding frequencies are less than lower frequency social vocalizations. We interpret this paradox in light of observations suggesting that USVs with lower frequency elements (<50 kHz) are associated with increased emotional intensity and engage a larger population of neurons in the mouse auditory system.
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Affiliation(s)
- Mahtab Tehrani
- Department of Anatomy and Neurobiology and Hearing Research Group, Northeast Ohio Medical University, Rootstown, Ohio 44272
- Brain Health Research Institute, Kent State University, Kent, Ohio 44242
| | - Sharad Shanbhag
- Department of Anatomy and Neurobiology and Hearing Research Group, Northeast Ohio Medical University, Rootstown, Ohio 44272
- Brain Health Research Institute, Kent State University, Kent, Ohio 44242
| | - Julia J Huyck
- Brain Health Research Institute, Kent State University, Kent, Ohio 44242
- Speech Pathology and Audiology Program, Kent State University, Kent, Ohio 44242
| | - Rahi Patel
- Department of Anatomy and Neurobiology and Hearing Research Group, Northeast Ohio Medical University, Rootstown, Ohio 44272
| | - Diana Kazimierski
- Department of Anatomy and Neurobiology and Hearing Research Group, Northeast Ohio Medical University, Rootstown, Ohio 44272
| | - Jeffrey J Wenstrup
- Department of Anatomy and Neurobiology and Hearing Research Group, Northeast Ohio Medical University, Rootstown, Ohio 44272
- Brain Health Research Institute, Kent State University, Kent, Ohio 44242
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9
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Izowit G, Walczak M, Drwięga G, Solecki W, Błasiak T. Brain state-dependent responses of midbrain dopaminergic neurons to footshock under urethane anaesthesia. Eur J Neurosci 2024; 59:1536-1557. [PMID: 38233998 DOI: 10.1111/ejn.16252] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Revised: 12/22/2023] [Accepted: 12/28/2023] [Indexed: 01/19/2024]
Abstract
For a long time, it has been assumed that dopaminergic (DA) neurons in both the ventral tegmental area (VTA) and the substantia nigra pars compacta (SNc) uniformly respond to rewarding and aversive stimuli by either increasing or decreasing their activity, respectively. This response was believed to signal information about the perceived stimuli's values. The identification of VTA&SNc DA neurons that are excited by both rewarding and aversive stimuli has led to the categorisation of VTA&SNc DA neurons into two subpopulations: one signalling the value and the other signalling the salience of the stimuli. It has been shown that the general state of the brain can modulate the electrical activity of VTA&SNc DA neurons, but it remains unknown whether this factor may also influence responses to aversive stimuli, such as a footshock (FS). To address this question, we have recorded the responses of VTA&SNc DA neurons to FSs across cortical activation and slow wave activity brain states in urethane-anaesthetised rats. Adding to the knowledge of aversion signalling by midbrain DA neurons, we report that significant proportion of VTA&SNc DA neurons can change their responses to an aversive stimulus in a brain state-dependent manner. The majority of these neurons decreased their activity in response to FS during cortical activation but switched to increasing it during slow wave activity. It can be hypothesised that this subpopulation of DA neurons may be involved in the 'dual signalling' of both the value and the salience of the stimuli, depending on the general state of the brain.
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Affiliation(s)
- Gabriela Izowit
- Department of Neurophysiology and Chronobiology, Institute of Zoology and Biomedical Research, Jagiellonian University, Cracow, Poland
- Doctoral School of Exact and Natural Sciences, Jagiellonian University, Cracow, Poland
| | - Magdalena Walczak
- Department of Neurophysiology and Chronobiology, Institute of Zoology and Biomedical Research, Jagiellonian University, Cracow, Poland
| | - Gniewosz Drwięga
- Department of Neurophysiology and Chronobiology, Institute of Zoology and Biomedical Research, Jagiellonian University, Cracow, Poland
- Doctoral School of Exact and Natural Sciences, Jagiellonian University, Cracow, Poland
| | - Wojciech Solecki
- Department of Neurobiology and Neuropsychology, Institute of Applied Psychology, Jagiellonian University, Cracow, Poland
| | - Tomasz Błasiak
- Department of Neurophysiology and Chronobiology, Institute of Zoology and Biomedical Research, Jagiellonian University, Cracow, Poland
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10
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Chen G, Chen P, Yang Z, Ma W, Yan H, Su T, Zhang Y, Qi Z, Fang W, Jiang L, Chen Z, Tao Q, Wang Y. Increased functional connectivity between the midbrain and frontal cortex following bright light therapy in subthreshold depression: A randomized clinical trial. Am Psychol 2024; 79:437-450. [PMID: 37971845 DOI: 10.1037/amp0001218] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2023]
Abstract
The underlying mechanisms of bright light therapy (BLT) in the prevention of individuals with subthreshold depression symptoms are yet to be elucidated. The goal of the study was to assess the correlation between midbrain monoamine-producing nuclei treatment-related functional connectivity (FC) changes and depressive symptom improvements in subthreshold depression. This double-blind, randomized, placebo-controlled clinical trial was conducted between March 2020 and June 2022. A total of 74 young adults with subthreshold depression were randomly assigned to receive 8-week BLT (N = 38) or placebo (N = 36). Depression severity was measured using the Hamilton Depression Rating Scale (HDRS). The participants underwent resting-state functional magnetic resonance imaging at baseline and after treatment. The dorsal raphe nucleus (DRN), ventral tegmental area (VTA), and habenula seed-based whole-brain FC were analyzed. A multivariate regression model examined whether baseline brain FC was associated with changes in scores on HDRS during BLT treatment. BLT group displayed significantly decreased HDRS scores from pre- to posttreatment compared to the placebo group. BLT increased the FC between the DRN and medial prefrontal cortex (mPFC) and between the left VTA and right superior frontal gyrus (SFG). Altered VTA-SFG connectivity was associated with HDRS changes in the BLT group. Moreover, the baseline FC between DRN and mPFC could predict HDRS changes in BLT. These results suggested that BLT improves depressive symptoms and increases midbrain monoamine-producing nuclei and frontal cortex connectivity in subthreshold depression, which raises the possibility that pretreatment FC of DRN-mPFC could be used as a biomarker for improved BLT treatment in depression. (PsycInfo Database Record (c) 2024 APA, all rights reserved).
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Affiliation(s)
- Guanmao Chen
- Department of Medical Imaging, First Affiliated Hospital of Jinan University
| | - Pan Chen
- Department of Medical Imaging, First Affiliated Hospital of Jinan University
| | - Zibin Yang
- Department of Medical Imaging, First Affiliated Hospital of Jinan University
| | - Wenhao Ma
- Department of Public Health and Preventive Medicine, School of Basic Medicine, Jinan University
| | - Hong Yan
- Department of Medical Imaging, First Affiliated Hospital of Jinan University
| | - Ting Su
- Department of Medical Imaging, First Affiliated Hospital of Jinan University
| | - Yuan Zhang
- Department of Public Health and Preventive Medicine, School of Basic Medicine, Jinan University
| | - Zhangzhang Qi
- Department of Medical Imaging, First Affiliated Hospital of Jinan University
| | - Wenjie Fang
- Department of Public Health and Preventive Medicine, School of Basic Medicine, Jinan University
| | - Lijun Jiang
- Department of Public Health and Preventive Medicine, School of Basic Medicine, Jinan University
| | - Zhuoming Chen
- Department of Rehabilitation Medicine, First Affiliated Hospital of Jinan University
| | - Qian Tao
- Department of Public Health and Preventive Medicine, School of Basic Medicine, Jinan University
| | - Ying Wang
- Department of Medical Imaging, First Affiliated Hospital of Jinan University
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11
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Akbari N, Tatarsky RL, Kolkman KE, Fetcho JR, Xu C, Bass AH. Label-free, whole-brain in vivo mapping in an adult vertebrate with third harmonic generation microscopy. J Comp Neurol 2024; 532:e25614. [PMID: 38616537 PMCID: PMC11069316 DOI: 10.1002/cne.25614] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Revised: 02/16/2024] [Accepted: 03/24/2024] [Indexed: 04/16/2024]
Abstract
Comprehensive understanding of interconnected networks within the brain requires access to high resolution information within large field of views and over time. Currently, methods that enable mapping structural changes of the entire brain in vivo are extremely limited. Third harmonic generation (THG) can resolve myelinated structures, blood vessels, and cell bodies throughout the brain without the need for any exogenous labeling. Together with deep penetration of long wavelengths, this enables in vivo brain-mapping of large fractions of the brain in small animals and over time. Here, we demonstrate that THG microscopy allows non-invasive label-free mapping of the entire brain of an adult vertebrate, Danionella dracula, which is a miniature species of cyprinid fish. We show this capability in multiple brain regions and in particular the identification of major commissural fiber bundles in the midbrain and the hindbrain. These features provide readily discernable landmarks for navigation and identification of regional-specific neuronal groups and even single neurons during in vivo experiments. We further show how this label-free technique can easily be coupled with fluorescence microscopy and used as a comparative tool for studies of other species with similar body features to Danionella, such as zebrafish (Danio rerio) and tetras (Trochilocharax ornatus). This new evidence, building on previous studies, demonstrates how small size and relative transparency, combined with the unique capabilities of THG microscopy, can enable label-free access to the entire adult vertebrate brain.
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Affiliation(s)
- Najva Akbari
- School of Applied and Engineering Physics, Cornell University, Ithaca, NY USA 14850
- Present address: Department of Biology, Stanford University, Stanford, CA USA 94305
| | - Rose L. Tatarsky
- Department of Neurobiology and Behavior, Cornell University, Ithaca, NY USA 14850
| | - Kristine E. Kolkman
- Department of Neurobiology and Behavior, Cornell University, Ithaca, NY USA 14850
| | - Joseph R. Fetcho
- Department of Neurobiology and Behavior, Cornell University, Ithaca, NY USA 14850
| | - Chris Xu
- School of Applied and Engineering Physics, Cornell University, Ithaca, NY USA 14850
| | - Andrew H. Bass
- Department of Neurobiology and Behavior, Cornell University, Ithaca, NY USA 14850
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12
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Ren S, Zhang C, Yue F, Tang J, Zhang W, Zheng Y, Fang Y, Wang N, Song Z, Zhang Z, Zhang X, Qin H, Wang Y, Xia J, Jiang C, He C, Luo F, Hu Z. A midbrain GABAergic circuit constrains wakefulness in a mouse model of stress. Nat Commun 2024; 15:2722. [PMID: 38548744 PMCID: PMC10978901 DOI: 10.1038/s41467-024-46707-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Accepted: 03/07/2024] [Indexed: 04/01/2024] Open
Abstract
Enhancement of wakefulness is a prerequisite for adaptive behaviors to cope with acute stress, but hyperarousal is associated with impaired behavioral performance. Although the neural circuitries promoting wakefulness in acute stress conditions have been extensively identified, less is known about the circuit mechanisms constraining wakefulness to prevent hyperarousal. Here, we found that chemogenetic or optogenetic activation of GAD2-positive GABAergic neurons in the midbrain dorsal raphe nucleus (DRNGAD2) decreased wakefulness, while inhibition or ablation of these neurons produced an increase in wakefulness along with hyperactivity. Surprisingly, DRNGAD2 neurons were paradoxically wakefulness-active and were further activated by acute stress. Bidirectional manipulations revealed that DRNGAD2 neurons constrained the increase of wakefulness and arousal level in a mouse model of stress. Circuit-specific investigations demonstrated that DRNGAD2 neurons constrained wakefulness via inhibition of the wakefulness-promoting paraventricular thalamus. Therefore, the present study identified a wakefulness-constraining role DRNGAD2 neurons in acute stress conditions.
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Affiliation(s)
- Shuancheng Ren
- Department of Physiology, College of Basic Medical Sciences, Army Medical University, Chongqing, 400038, China.
- No. 953 Army Hospital, Shigatse, Tibet Autonomous Region, 857000, China.
| | - Cai Zhang
- Department of Physiology, College of Basic Medical Sciences, Army Medical University, Chongqing, 400038, China
| | - Faguo Yue
- Department of Physiology, College of Basic Medical Sciences, Army Medical University, Chongqing, 400038, China
- Sleep and Psychology Center, Bishan Hospital of Chongqing Medical University, Chongqing, 402760, China
| | - Jinxiang Tang
- Sleep and Psychology Center, Bishan Hospital of Chongqing Medical University, Chongqing, 402760, China
| | - Wei Zhang
- Department of Physiology, College of Basic Medical Sciences, Army Medical University, Chongqing, 400038, China
| | - Yue Zheng
- Department of Anesthesiology, Southwest Hospital, Army Medical University, Chongqing, 400038, China
| | - Yuanyuan Fang
- Department of Anesthesiology, Zhongnan Hospital, Wuhan University, Wuhan, 430071, China
| | - Na Wang
- Department of Physiology, College of Basic Medical Sciences, Army Medical University, Chongqing, 400038, China
- College of Bioengineering, Chongqing University, Chongqing, 400044, China
| | - Zhenbo Song
- Department of Physiology, College of Basic Medical Sciences, Army Medical University, Chongqing, 400038, China
| | - Zehui Zhang
- Department of Physiology, College of Basic Medical Sciences, Jilin University, Changchun, 130021, China
| | - Xiaolong Zhang
- Department of Physiology, College of Basic Medical Sciences, Army Medical University, Chongqing, 400038, China
| | - Han Qin
- Chongqing Institute for Brain and Intelligence, Guangyang Bay Laboratory, Chongqing, 400064, China
| | - Yaling Wang
- Department of Physiology, College of Basic Medical Sciences, Army Medical University, Chongqing, 400038, China
| | - Jianxia Xia
- Department of Physiology, College of Basic Medical Sciences, Army Medical University, Chongqing, 400038, China
| | - Chenggang Jiang
- Psychology Department, Women and Children's Hospital of Chongqing Medical University, Chongqing Health Center for Women and Children, Chongqing, 401147, China
| | - Chao He
- Department of Physiology, College of Basic Medical Sciences, Army Medical University, Chongqing, 400038, China.
| | - Fenlan Luo
- Department of Physiology, College of Basic Medical Sciences, Army Medical University, Chongqing, 400038, China.
| | - Zhian Hu
- Department of Physiology, College of Basic Medical Sciences, Army Medical University, Chongqing, 400038, China.
- Chongqing Institute for Brain and Intelligence, Guangyang Bay Laboratory, Chongqing, 400064, China.
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13
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Amo R, Uchida N, Watabe-Uchida M. Glutamate inputs send prediction error of reward, but not negative value of aversive stimuli, to dopamine neurons. Neuron 2024; 112:1001-1019.e6. [PMID: 38278147 PMCID: PMC10957320 DOI: 10.1016/j.neuron.2023.12.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2023] [Revised: 11/10/2023] [Accepted: 12/21/2023] [Indexed: 01/28/2024]
Abstract
Midbrain dopamine neurons are thought to signal reward prediction errors (RPEs), but the mechanisms underlying RPE computation, particularly the contributions of different neurotransmitters, remain poorly understood. Here, we used a genetically encoded glutamate sensor to examine the pattern of glutamate inputs to dopamine neurons in mice. We found that glutamate inputs exhibit virtually all of the characteristics of RPE rather than conveying a specific component of RPE computation, such as reward or expectation. Notably, whereas glutamate inputs were transiently inhibited by reward omission, they were excited by aversive stimuli. Opioid analgesics altered dopamine negative responses to aversive stimuli into more positive responses, whereas excitatory responses of glutamate inputs remained unchanged. Our findings uncover previously unknown synaptic mechanisms underlying RPE computations; dopamine responses are shaped by both synergistic and competitive interactions between glutamatergic and GABAergic inputs to dopamine neurons depending on valences, with competitive interactions playing a role in responses to aversive stimuli.
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Affiliation(s)
- Ryunosuke Amo
- Department of Molecular and Cellular Biology, Center for Brain Science, Harvard University, Cambridge, MA 02138, USA
| | - Naoshige Uchida
- Department of Molecular and Cellular Biology, Center for Brain Science, Harvard University, Cambridge, MA 02138, USA
| | - Mitsuko Watabe-Uchida
- Department of Molecular and Cellular Biology, Center for Brain Science, Harvard University, Cambridge, MA 02138, USA.
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14
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The people behind the papers - Andy Yang and Stephane Angers. Development 2024; 151:dev202789. [PMID: 38436209 DOI: 10.1242/dev.202789] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/05/2024]
Abstract
Activation of the Wnt signalling pathway is vital in the anterior-posterior patterning during neural development. In a new study, Stephane Angers and colleagues leverage previously developed selective antibodies against Frizzled receptors of the Wnt pathway to stimulate midbrain progenitor differentiation in human pluripotent stem cells. We caught up with first author Andy Yang and corresponding author Stephane Angers, Professor at the University of Toronto, to learn more about the story behind the paper.
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15
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Carter F, Cossette MP, Trujillo-Pisanty I, Pallikaras V, Breton YA, Conover K, Caplan J, Solis P, Voisard J, Yaksich A, Shizgal P. Does phasic dopamine release cause policy updates? Eur J Neurosci 2024; 59:1260-1277. [PMID: 38039083 DOI: 10.1111/ejn.16199] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2023] [Revised: 10/21/2023] [Accepted: 11/01/2023] [Indexed: 12/03/2023]
Abstract
Phasic dopamine activity is believed to both encode reward-prediction errors (RPEs) and to cause the adaptations that these errors engender. If so, a rat working for optogenetic stimulation of dopamine neurons will repeatedly update its policy and/or action values, thus iteratively increasing its work rate. Here, we challenge this view by demonstrating stable, non-maximal work rates in the face of repeated optogenetic stimulation of midbrain dopamine neurons. Furthermore, we show that rats learn to discriminate between world states distinguished only by their history of dopamine activation. Comparison of these results to reinforcement learning simulations suggests that the induced dopamine transients acted more as rewards than RPEs. However, pursuit of dopaminergic stimulation drifted upwards over a time scale of days and weeks, despite its stability within trials. To reconcile the results with prior findings, we consider multiple roles for dopamine signalling.
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Affiliation(s)
- Francis Carter
- Department of Psychology, Concordia University, Montreal, Quebec, Canada
- Montreal Institute for Learning Algorithms, Université de Montréal, Montreal, Quebec, Canada
| | | | - Ivan Trujillo-Pisanty
- Department of Psychology, Concordia University, Montreal, Quebec, Canada
- Department of Psychology, Langara College, Vancouver, British Columbia, Canada
| | | | | | - Kent Conover
- Department of Psychology, Concordia University, Montreal, Quebec, Canada
| | - Jill Caplan
- Department of Psychology, Concordia University, Montreal, Quebec, Canada
| | - Pavel Solis
- Department of Psychology, Concordia University, Montreal, Quebec, Canada
| | - Jacques Voisard
- Department of Psychology, Concordia University, Montreal, Quebec, Canada
| | - Alexandra Yaksich
- Department of Psychology, Concordia University, Montreal, Quebec, Canada
| | - Peter Shizgal
- Department of Psychology, Concordia University, Montreal, Quebec, Canada
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16
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Hammer N, Vogel P, Lee S, Roeper J. Optogenetic action potentials and intrinsic pacemaker interplay in retrogradely identified midbrain dopamine neurons. Eur J Neurosci 2024; 59:1311-1331. [PMID: 38056070 DOI: 10.1111/ejn.16208] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2023] [Revised: 11/09/2023] [Accepted: 11/15/2023] [Indexed: 12/08/2023]
Abstract
Dissecting the diversity of midbrain dopamine (DA) neurons by optotagging is a promising addition to better identify their functional properties and contribution to motivated behavior. Retrograde molecular targeting of DA neurons with specific axonal projection allows further refinement of this approach. Here, we focus on adult mouse DA neurons in the substantia nigra pars compacta (SNc) projecting to dorsal striatum (DS) by demonstrating the selectivity of a floxed AAV9-based retrograde channelrhodopsin-eYFP (ChR-eYFP) labeling approach in DAT-cre mice. Furthermore, we show the utility of a sparse labeling version for anatomical single-cell reconstruction and demonstrate that ChR-eYFR expressing DA neurons retain intrinsic functional properties indistinguishable from conventionally retrogradely red-beads-labeled neurons. We systematically explore the properties of optogenetically evoked action potentials (oAPs) and their interaction with intrinsic pacemaking in this defined subpopulation of DA neurons. We found that the shape of the oAP and its first derivative, as a proxy for extracellularly recorded APs, is highly distinct from spontaneous APs (sAPs) of the same neurons and systematically varies across the pacemaker duty cycle. The timing of the oAP also affects the backbone oscillator of the intrinsic pacemaker by introducing transient "compensatory pauses". Characterizing this systematic interplay between oAPs and sAPs in defined DA neurons will also facilitate a refinement of DA neuron optotagging in vivo.
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Affiliation(s)
- Niklas Hammer
- Institute of Neurophysiology, Neuroscience Center, Goethe University Frankfurt, Germany
| | - Pascal Vogel
- Institute of Neurophysiology, Neuroscience Center, Goethe University Frankfurt, Germany
| | - Sanghun Lee
- Institute of Neurophysiology, Neuroscience Center, Goethe University Frankfurt, Germany
| | - Jochen Roeper
- Institute of Neurophysiology, Neuroscience Center, Goethe University Frankfurt, Germany
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17
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Yang A, Chidiac R, Russo E, Steenland H, Pauli Q, Bonin R, Blazer LL, Adams JJ, Sidhu SS, Goeva A, Salahpour A, Angers S. Exploiting spatiotemporal regulation of FZD5 during neural patterning for efficient ventral midbrain specification. Development 2024; 151:dev202545. [PMID: 38358799 PMCID: PMC10946437 DOI: 10.1242/dev.202545] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Accepted: 02/06/2024] [Indexed: 02/16/2024]
Abstract
The Wnt/β-catenin signaling governs anterior-posterior neural patterning during development. Current human pluripotent stem cell (hPSC) differentiation protocols use a GSK3 inhibitor to activate Wnt signaling to promote posterior neural fate specification. However, GSK3 is a pleiotropic kinase involved in multiple signaling pathways and, as GSK3 inhibition occurs downstream in the signaling cascade, it bypasses potential opportunities for achieving specificity or regulation at the receptor level. Additionally, the specific roles of individual FZD receptors in anterior-posterior patterning are poorly understood. Here, we have characterized the cell surface expression of FZD receptors in neural progenitor cells with different regional identity. Our data reveal unique upregulation of FZD5 expression in anterior neural progenitors, and this expression is downregulated as cells adopt a posterior fate. This spatial regulation of FZD expression constitutes a previously unreported regulatory mechanism that adjusts the levels of β-catenin signaling along the anterior-posterior axis and possibly contributes to midbrain-hindbrain boundary formation. Stimulation of Wnt/β-catenin signaling in hPSCs, using a tetravalent antibody that selectively triggers FZD5 and LRP6 clustering, leads to midbrain progenitor differentiation and gives rise to functional dopaminergic neurons in vitro and in vivo.
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Affiliation(s)
- Andy Yang
- Donnelly Centre for Cellular and Biomolecular Research, University of Toronto, Toronto, ON M5S 3E1, Canada
- Leslie Dan Faculty of Pharmacy, University of Toronto, Toronto, ON M5S 3M2, Canada
| | - Rony Chidiac
- Donnelly Centre for Cellular and Biomolecular Research, University of Toronto, Toronto, ON M5S 3E1, Canada
- Leslie Dan Faculty of Pharmacy, University of Toronto, Toronto, ON M5S 3M2, Canada
| | - Emma Russo
- Department of Pharmacology and Toxicology, Temerty Faculty of Medicine, University of Toronto, Toronto, ON M5S 1A8, Canada
| | - Hendrik Steenland
- Department of Pharmacology and Toxicology, Temerty Faculty of Medicine, University of Toronto, Toronto, ON M5S 1A8, Canada
- NeuroTek Innovative Technology, Toronto, ON M6C 3A2, Canada
| | - Quinn Pauli
- Leslie Dan Faculty of Pharmacy, University of Toronto, Toronto, ON M5S 3M2, Canada
| | - Robert Bonin
- Leslie Dan Faculty of Pharmacy, University of Toronto, Toronto, ON M5S 3M2, Canada
| | - Levi L. Blazer
- Donnelly Centre for Cellular and Biomolecular Research, University of Toronto, Toronto, ON M5S 3E1, Canada
| | - Jarrett J. Adams
- Donnelly Centre for Cellular and Biomolecular Research, University of Toronto, Toronto, ON M5S 3E1, Canada
| | - Sachdev S. Sidhu
- Donnelly Centre for Cellular and Biomolecular Research, University of Toronto, Toronto, ON M5S 3E1, Canada
- Department of Molecular Genetics, Temerty Faculty of Medicine, University of Toronto, Toronto, ON M5S 1A8, Canada
| | - Aleksandrina Goeva
- Broad Institute of Massachusetts Institute of Technology and Harvard, Cambridge, MA 02142, USA
| | - Ali Salahpour
- Department of Pharmacology and Toxicology, Temerty Faculty of Medicine, University of Toronto, Toronto, ON M5S 1A8, Canada
| | - Stephane Angers
- Donnelly Centre for Cellular and Biomolecular Research, University of Toronto, Toronto, ON M5S 3E1, Canada
- Leslie Dan Faculty of Pharmacy, University of Toronto, Toronto, ON M5S 3M2, Canada
- Department of Biochemistry, Temerty Faculty of Medicine, University of Toronto, Toronto, ON M5S 1A8, Canada
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18
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李 洋, 徐 佳, 姜 诚, 陈 子, 陈 颖, 应 梦, 王 澳, 马 彩, 王 春, 郭 俣, 刘 长. [Rho kinase inhibitor Y27632 promotes survival of human induced pluripotent stem cells during differentiation into functional midbrain dopaminergic progenitor cells in vitro]. Nan Fang Yi Ke Da Xue Xue Bao 2024; 44:236-243. [PMID: 38501408 PMCID: PMC10954535 DOI: 10.12122/j.issn.1673-4254.2024.02.05] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 10/02/2023] [Indexed: 03/20/2024]
Abstract
OBJECTIVE To improve the efficiency of induced differentiation of primitive neural epithelial cells derived from human induced pluripotent stem cells (hiPSCs-NECs) into functional midbrain dopaminergic progenitor cells (DAPs). METHODS HiPSCs were cultured in mTeSRTM medium containing DMH1 (10 μmol/L), SB431542 (10 μmol/L), SHH (200 ng/mL), FGF8 (100 ng/mL), purmorphamine (2 μmol/L), CHIR99021 (3 μmol/L), and N2 (1%) for 12 days to induce their differentiation into primitive neuroepithelial cells (NECs). The hiPSCs-NECs were digested with collagenase Ⅳ and then cultured in neurobasal medium supplemented with 1% N2, 2% B27-A, BDNF (10 ng/mL), GDNF (10 ng/mL), AA, TGF-β, cAMP, and 1% GlutaMax in the presence of different concentrations of Rho kinase inhibitor Y27632, and the culture medium was changed the next day to remove Y27632. Continuous induction was performed until day 28 to obtain DAPs. RESULTS Human iPSCs expressed the pluripotency markers OCT4, SOX2, Nanog, and SSEA1 and were positive for alkaline phosphatase staining. The hiPSCs-NECs were obtained on day 13 in the form of neural rosettes expressing neuroepithelial markers SOX2, nestin, and PAX6. In digested hiPSCs-NECs, the addition of 5 μmol/L Y27632 significantly promoted survival of the adherent cells, increased cell viability and the proportion of S-phase cells (P < 0.01), and reduced the rate of apoptotic cells (P < 0.05). On day 28 of induction, the obtained cells highly expressed the specific markers of DAPS (TH, FOXA2, NURR1, and Tuj1). CONCLUSION Treatment with Y27632 (5 μmol/L) for 24 h significantly promotes the survival of human iPSCs-NECs during their differentiation into DPAs without affecting the cell differentiation, which indirectly enhances the efficiency of cell differentiation.
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Affiliation(s)
- 洋洋 李
- 蚌埠医科大学安徽省神经再生技术与医用新材料工程研究中心,安徽 蚌埠 233000Anhui Engineering Research Center for Neural Regeneration Technology and Medical New Materials, Bengbu Medical University, Bengbu 233000, China
| | - 佳佳 徐
- 蚌埠医科大学安徽省神经再生技术与医用新材料工程研究中心,安徽 蚌埠 233000Anhui Engineering Research Center for Neural Regeneration Technology and Medical New Materials, Bengbu Medical University, Bengbu 233000, China
| | - 诚诚 姜
- 蚌埠医科大学安徽省神经再生技术与医用新材料工程研究中心,安徽 蚌埠 233000Anhui Engineering Research Center for Neural Regeneration Technology and Medical New Materials, Bengbu Medical University, Bengbu 233000, China
| | - 子龙 陈
- 蚌埠医科大学安徽省神经再生技术与医用新材料工程研究中心,安徽 蚌埠 233000Anhui Engineering Research Center for Neural Regeneration Technology and Medical New Materials, Bengbu Medical University, Bengbu 233000, China
| | - 颖 陈
- 蚌埠医科大学安徽省神经再生技术与医用新材料工程研究中心,安徽 蚌埠 233000Anhui Engineering Research Center for Neural Regeneration Technology and Medical New Materials, Bengbu Medical University, Bengbu 233000, China
| | - 梦娇 应
- 蚌埠医科大学安徽省神经再生技术与医用新材料工程研究中心,安徽 蚌埠 233000Anhui Engineering Research Center for Neural Regeneration Technology and Medical New Materials, Bengbu Medical University, Bengbu 233000, China
| | - 澳 王
- 蚌埠医科大学生命科学学院,安徽 蚌埠 233000School of Life Sciences, Bengbu Medical University, Bengbu 233000, China
| | - 彩云 马
- 蚌埠医科大学安徽省神经再生技术与医用新材料工程研究中心,安徽 蚌埠 233000Anhui Engineering Research Center for Neural Regeneration Technology and Medical New Materials, Bengbu Medical University, Bengbu 233000, China
| | - 春景 王
- 蚌埠医科大学安徽省神经再生技术与医用新材料工程研究中心,安徽 蚌埠 233000Anhui Engineering Research Center for Neural Regeneration Technology and Medical New Materials, Bengbu Medical University, Bengbu 233000, China
| | - 俣 郭
- 蚌埠医科大学生命科学学院,安徽 蚌埠 233000School of Life Sciences, Bengbu Medical University, Bengbu 233000, China
| | - 长青 刘
- 蚌埠医科大学安徽省神经再生技术与医用新材料工程研究中心,安徽 蚌埠 233000Anhui Engineering Research Center for Neural Regeneration Technology and Medical New Materials, Bengbu Medical University, Bengbu 233000, China
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19
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Chang CY, Chan YC, Chen HC. The differential processing of verbal jokes by neural substrates in indigenous and Han Chinese populations: An fMRI study. Behav Brain Res 2024; 457:114702. [PMID: 37813282 DOI: 10.1016/j.bbr.2023.114702] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Revised: 09/20/2023] [Accepted: 10/06/2023] [Indexed: 10/11/2023]
Abstract
Limited research has been conducted on humor among the Taiwanese indigenous (IND) population. This study attempted to identify the differential neural correlates of humor comprehension and appreciation between IND and Han Chinese (HAN) populations. Each participant was presented with jokes and non-jokes. IND participants when encountered with jokes displayed a greater activation of the mesolimbic dopaminergic reward system, including the amygdala, midbrain, and nucleus accumbens than HAN participants. This suggests a more pleasurable response and appreciation of humor. The IND group also displayed greater activation in the right temporoparietal junction (rTPJ) than HAN, suggesting that the IND group may experience a greater sense of novelty and be more involved in social understanding, thus exhibiting greater humor appreciation. In terms of humor comprehension, both IND and HAN showed greater activation in the superior temporal gyrus (STG) and dorsal anterior cingulate cortex (dACC). IND exhibited greater activation in the anterior STG (aSTG), while HAN showed greater activation in the posterior STG (pSTG). This suggests that the IND tends to integrate emotional messages, whereas the HAN focuses on comprehending semantic cognitive information. Interestingly, HAN did not show any greater activation than IND in terms of appreciation of humor. These group disparities have substantial implications for advancing our knowledge of the neural mechanisms underlying humor comprehension and appreciation.
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Affiliation(s)
- Chia-Yueh Chang
- Department of Educational Psychology and Counseling, National Taiwan Normal University, Taipei 10610, Taiwan
| | - Yu-Chen Chan
- Department of Educational Psychology and Counseling, National Tsing Hua University, Hsinchu 300043, Taiwan
| | - Hsueh-Chih Chen
- Department of Educational Psychology and Counseling, National Taiwan Normal University, Taipei 10610, Taiwan; Institute for Research Excellence in Learning Sciences, National Taiwan Normal University, Taipei 10610, Taiwan; Chinese Language and Technology Center, National Taiwan Normal University, Taipei 10610, Taiwan; Social Emotional Education and Development Center, National Taiwan Normal University, Taipei 10610, Taiwan.
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20
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Amaya JM, Sips HCM, Viho EMG, Kroon J, Meijer OC. Restricted effects of androgens on glucocorticoid signaling in the mouse prefrontal cortex and midbrain. Front Endocrinol (Lausanne) 2024; 14:1292024. [PMID: 38303978 PMCID: PMC10830692 DOI: 10.3389/fendo.2023.1292024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/10/2023] [Accepted: 12/21/2023] [Indexed: 02/03/2024] Open
Abstract
Glucocorticoids are key executors of the physiological response to stress. Previous studies in mice showed that the androgen receptor (AR) influenced the transcriptional outcome of glucocorticoid treatment in white and brown adipocytes and in the liver. In the brain, we observed that chronic hypercorticism induced changes in gene expression that tended to be more pronounced in male mice. In the present study, we investigated if glucocorticoid signaling in the brain could be modulated by androgen. After chronic treatment with corticosterone, dihydrotestosterone, a combination of both, and corticosterone in combination with the AR antagonist enzalutamide, we compared the expression of glucocorticoid receptor (NR3C1, also abbreviated GR) target genes in brain regions where AR and GR are co-expressed, namely: prefrontal cortex, hypothalamus, hippocampus, ventral tegmental area and substantia nigra. We observed that androgen affected glucocorticoid signaling only in the prefrontal cortex and the substantia nigra. Dihydrotestosterone and corticosterone independently and inversely regulated expression of Sgk1 and Tsc22d3 in prefrontal cortex. AR antagonism with enzalutamide attenuated corticosterone-induced expression of Fkbp5 in the prefrontal cortex and of Fkbp5 and Sgk1 in the substantia nigra. Additionally, in the substantia nigra, AR antagonism increased expression of Th and Slc18a1, two genes coding for key components of the dopaminergic system. Our data indicate that androgen influence over glucocorticoid stimulation in the brain is not a dominant phenomenon in the context of high corticosterone levels, but can occur in the prefrontal cortex and substantia nigra.
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Affiliation(s)
- Jorge Miguel Amaya
- Department of Internal Medicine, Division of Endocrinology, Leiden University Medical Center, Leiden, Netherlands
- Einthoven Laboratory for Experimental Vascular Medicine, Leiden University Medical Center, Leiden, Netherlands
| | - Hetty C. M. Sips
- Department of Internal Medicine, Division of Endocrinology, Leiden University Medical Center, Leiden, Netherlands
- Einthoven Laboratory for Experimental Vascular Medicine, Leiden University Medical Center, Leiden, Netherlands
| | - Eva M. G. Viho
- Department of Internal Medicine, Division of Endocrinology, Leiden University Medical Center, Leiden, Netherlands
- Einthoven Laboratory for Experimental Vascular Medicine, Leiden University Medical Center, Leiden, Netherlands
| | - Jan Kroon
- Department of Internal Medicine, Division of Endocrinology, Leiden University Medical Center, Leiden, Netherlands
- Einthoven Laboratory for Experimental Vascular Medicine, Leiden University Medical Center, Leiden, Netherlands
| | - Onno C. Meijer
- Department of Internal Medicine, Division of Endocrinology, Leiden University Medical Center, Leiden, Netherlands
- Einthoven Laboratory for Experimental Vascular Medicine, Leiden University Medical Center, Leiden, Netherlands
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21
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Estienne P, Simion M, Hagio H, Yamamoto N, Jenett A, Yamamoto K. Different ways of evolving tool-using brains in teleosts and amniotes. Commun Biol 2024; 7:88. [PMID: 38216631 PMCID: PMC10786859 DOI: 10.1038/s42003-023-05663-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Accepted: 12/01/2023] [Indexed: 01/14/2024] Open
Abstract
In mammals and birds, tool-using species are characterized by their relatively large telencephalon containing a higher proportion of total brain neurons compared to other species. Some teleost species in the wrasse family have evolved tool-using abilities. In this study, we compared the brains of tool-using wrasses with various teleost species. We show that in the tool-using wrasses, the telencephalon and the ventral part of the forebrain and midbrain are significantly enlarged compared to other teleost species but do not contain a larger proportion of cells. Instead, this size difference is due to large fiber tracts connecting the dorsal part of the telencephalon (pallium) to the inferior lobe, a ventral mesencephalic structure absent in amniotes. The high degree of connectivity between these structures in tool-using wrasses suggests that the inferior lobe could contribute to higher-order cognitive functions. We conclude that the evolution of non-telencephalic structures might have been key in the emergence of these cognitive functions in teleosts.
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Affiliation(s)
- Pierre Estienne
- Paris-Saclay Institute of Neuroscience (NeuroPSI), Université Paris-Saclay, CNRS UMR9197, Saclay, 91400, France
| | - Matthieu Simion
- TEFOR Paris-Saclay, CNRS UAR2010, Université Paris-Saclay, Saclay, 91400, France
- Université Paris-Saclay, UVSQ, EnvA, INRAE, BREED, Jouy-en-Josas, 78350, France
| | - Hanako Hagio
- Laboratory of Fish Biology, Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya, 464-8601, Japan
- Institute for Advanced Research, Nagoya University, Nagoya, 464-8601, Japan
| | - Naoyuki Yamamoto
- Laboratory of Fish Biology, Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya, 464-8601, Japan
| | - Arnim Jenett
- TEFOR Paris-Saclay, CNRS UAR2010, Université Paris-Saclay, Saclay, 91400, France
| | - Kei Yamamoto
- Paris-Saclay Institute of Neuroscience (NeuroPSI), Université Paris-Saclay, CNRS UMR9197, Saclay, 91400, France.
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22
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Morrone Parfitt G, Coccia E, Goldman C, Whitney K, Reyes R, Sarrafha L, Nam KH, Sohail S, Jones DR, Crary JF, Ordureau A, Blanchard J, Ahfeldt T. Disruption of lysosomal proteolysis in astrocytes facilitates midbrain organoid proteostasis failure in an early-onset Parkinson's disease model. Nat Commun 2024; 15:447. [PMID: 38200091 PMCID: PMC10781970 DOI: 10.1038/s41467-024-44732-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2022] [Accepted: 01/02/2024] [Indexed: 01/12/2024] Open
Abstract
Accumulation of advanced glycation end products (AGEs) on biopolymers accompanies cellular aging and drives poorly understood disease processes. Here, we studied how AGEs contribute to development of early onset Parkinson's Disease (PD) caused by loss-of-function of DJ1, a protein deglycase. In induced pluripotent stem cell (iPSC)-derived midbrain organoid models deficient for DJ1 activity, we find that lysosomal proteolysis is impaired, causing AGEs to accumulate, α-synuclein (α-syn) phosphorylation to increase, and proteins to aggregate. We demonstrated these processes are at least partly driven by astrocytes, as DJ1 loss reduces their capacity to provide metabolic support and triggers acquisition of a pro-inflammatory phenotype. Consistently, in co-cultures, we find that DJ1-expressing astrocytes are able to reverse the proteolysis deficits of DJ1 knockout midbrain neurons. In conclusion, astrocytes' capacity to clear toxic damaged proteins is critical to preserve neuronal function and their dysfunction contributes to the neurodegeneration observed in a DJ1 loss-of-function PD model.
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Affiliation(s)
- Gustavo Morrone Parfitt
- Nash Family Department of Neuroscience at Mount Sinai, New York, NY, USA.
- Ronald M. Loeb Center for Alzheimer's Disease at Mount Sinai, New York, NY, USA.
- Friedman Brain Institute at Mount Sinai, New York, NY, USA.
- Black Family Stem Cell Institute at Mount Sinai, New York, NY, USA.
- Aligning Science Across Parkinson's (ASAP) Collaborative Research Network, Chevy Chase, MD, USA.
- Department of Neuroscience, Genentech, Inc., South San Francisco, CA, 94080, USA.
| | - Elena Coccia
- Nash Family Department of Neuroscience at Mount Sinai, New York, NY, USA
- Ronald M. Loeb Center for Alzheimer's Disease at Mount Sinai, New York, NY, USA
- Friedman Brain Institute at Mount Sinai, New York, NY, USA
- Black Family Stem Cell Institute at Mount Sinai, New York, NY, USA
- Aligning Science Across Parkinson's (ASAP) Collaborative Research Network, Chevy Chase, MD, USA
| | - Camille Goldman
- Nash Family Department of Neuroscience at Mount Sinai, New York, NY, USA
- Ronald M. Loeb Center for Alzheimer's Disease at Mount Sinai, New York, NY, USA
- Friedman Brain Institute at Mount Sinai, New York, NY, USA
- Black Family Stem Cell Institute at Mount Sinai, New York, NY, USA
| | - Kristen Whitney
- Nash Family Department of Neuroscience at Mount Sinai, New York, NY, USA
- Ronald M. Loeb Center for Alzheimer's Disease at Mount Sinai, New York, NY, USA
- Friedman Brain Institute at Mount Sinai, New York, NY, USA
- Department of Artificial Intelligence & Human Health, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Department of Pathology, Molecular, and Cell-Based Medicine at Mount Sinai, New York, NY, USA
| | - Ricardo Reyes
- Nash Family Department of Neuroscience at Mount Sinai, New York, NY, USA
- Ronald M. Loeb Center for Alzheimer's Disease at Mount Sinai, New York, NY, USA
- Friedman Brain Institute at Mount Sinai, New York, NY, USA
- Black Family Stem Cell Institute at Mount Sinai, New York, NY, USA
| | - Lily Sarrafha
- Nash Family Department of Neuroscience at Mount Sinai, New York, NY, USA
- Ronald M. Loeb Center for Alzheimer's Disease at Mount Sinai, New York, NY, USA
- Friedman Brain Institute at Mount Sinai, New York, NY, USA
- Black Family Stem Cell Institute at Mount Sinai, New York, NY, USA
| | - Ki Hong Nam
- Cell Biology Program, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Soha Sohail
- Nash Family Department of Neuroscience at Mount Sinai, New York, NY, USA
- Ronald M. Loeb Center for Alzheimer's Disease at Mount Sinai, New York, NY, USA
- Friedman Brain Institute at Mount Sinai, New York, NY, USA
- Black Family Stem Cell Institute at Mount Sinai, New York, NY, USA
| | - Drew R Jones
- Metabolomics Core Resource Laboratory, NYU Langone Health, New York, NY, USA
| | - John F Crary
- Nash Family Department of Neuroscience at Mount Sinai, New York, NY, USA
- Friedman Brain Institute at Mount Sinai, New York, NY, USA
- Department of Artificial Intelligence & Human Health, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Department of Pathology, Molecular, and Cell-Based Medicine at Mount Sinai, New York, NY, USA
| | - Alban Ordureau
- Cell Biology Program, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Joel Blanchard
- Nash Family Department of Neuroscience at Mount Sinai, New York, NY, USA.
- Ronald M. Loeb Center for Alzheimer's Disease at Mount Sinai, New York, NY, USA.
- Friedman Brain Institute at Mount Sinai, New York, NY, USA.
- Black Family Stem Cell Institute at Mount Sinai, New York, NY, USA.
- Aligning Science Across Parkinson's (ASAP) Collaborative Research Network, Chevy Chase, MD, USA.
| | - Tim Ahfeldt
- Nash Family Department of Neuroscience at Mount Sinai, New York, NY, USA.
- Ronald M. Loeb Center for Alzheimer's Disease at Mount Sinai, New York, NY, USA.
- Friedman Brain Institute at Mount Sinai, New York, NY, USA.
- Black Family Stem Cell Institute at Mount Sinai, New York, NY, USA.
- Recursion Pharmaceuticals, Salt Lake City, UT, USA.
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23
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Salemi M, Ravo M, Lanza G, Schillaci FA, Ventola GM, Marchese G, Salluzzo MG, Cappelletti G, Ferri R. Gene Expression Profiling of Post Mortem Midbrain of Parkinson's Disease Patients and Healthy Controls. Int J Mol Sci 2024; 25:707. [PMID: 38255780 PMCID: PMC10815072 DOI: 10.3390/ijms25020707] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2023] [Revised: 12/28/2023] [Accepted: 12/30/2023] [Indexed: 01/24/2024] Open
Abstract
Parkinson's disease (PD) stands as the most prevalent degenerative movement disorder, marked by the degeneration of dopaminergic neurons in the substantia nigra of the midbrain. In this study, we conducted a transcriptome analysis utilizing post mortem mRNA extracted from the substantia nigra of both PD patients and healthy control (CTRL) individuals. Specifically, we acquired eight samples from individuals with PD and six samples from CTRL individuals, with no discernible pathology detected in the latter group. RNA sequencing was conducted using the TapeStation 4200 system from Agilent Technologies. A total of 16,148 transcripts were identified, with 92 mRNAs displaying differential expression between the PD and control groups. Specifically, 33 mRNAs were significantly up-regulated, while 59 mRNAs were down-regulated in PD compared to the controls. The identification of statistically significant signaling pathways, with an adjusted p-value threshold of 0.05, unveiled noteworthy insights. Specifically, the enriched categories included cardiac muscle contraction (involving genes such as ATPase Na+/K+ transporting subunit beta 2 (ATP1B2), solute carrier family 8 member A1 (SLC8A1), and cytochrome c oxidase subunit II (COX2)), GABAergic synapse (involving GABA type A receptor-associated protein-like 1 (GABARAPL1), G protein subunit beta 5 (GNB5), and solute carrier family 38 member 2 (SLC38A2), autophagy (involving GABARAPL1 and tumor protein p53-inducible nuclear protein 2 (TP53INP2)), and Fc gamma receptor (FcγR) mediated phagocytosis (involving amphiphysin (AMPH)). These findings uncover new pathophysiological dimensions underlying PD, implicating genes associated with heart muscle contraction. This knowledge enhances diagnostic accuracy and contributes to the advancement of targeted therapies.
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Affiliation(s)
- Michele Salemi
- Oasi Research Institute–IRCCS, 94018 Troin, Italy; (G.L.); (F.A.S.); (M.G.S.); (R.F.)
| | - Maria Ravo
- Genomix4Life Srl, 94081 Baroniss, Italy; (M.R.); (G.M.V.); (G.M.)
- Genome Research Center for Health–CRGS, 94081 Baronissi, Italy
| | - Giuseppe Lanza
- Oasi Research Institute–IRCCS, 94018 Troin, Italy; (G.L.); (F.A.S.); (M.G.S.); (R.F.)
- Department of Surgery and Medical–Surgical Specialties, University of Catania, 95100 Catania, Italy
| | | | - Giovanna Maria Ventola
- Genomix4Life Srl, 94081 Baroniss, Italy; (M.R.); (G.M.V.); (G.M.)
- Genome Research Center for Health–CRGS, 94081 Baronissi, Italy
| | - Giovanna Marchese
- Genomix4Life Srl, 94081 Baroniss, Italy; (M.R.); (G.M.V.); (G.M.)
- Genome Research Center for Health–CRGS, 94081 Baronissi, Italy
| | - Maria Grazia Salluzzo
- Oasi Research Institute–IRCCS, 94018 Troin, Italy; (G.L.); (F.A.S.); (M.G.S.); (R.F.)
| | | | - Raffaele Ferri
- Oasi Research Institute–IRCCS, 94018 Troin, Italy; (G.L.); (F.A.S.); (M.G.S.); (R.F.)
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24
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Park S, Park CW, Eom JH, Jo MY, Hur HJ, Choi SK, Lee JS, Nam ST, Jo KS, Oh YW, Lee J, Kim S, Kim DH, Park CY, Kim SJ, Lee HY, Cho MS, Kim DS, Kim DW. Preclinical and dose-ranging assessment of hESC-derived dopaminergic progenitors for a clinical trial on Parkinson's disease. Cell Stem Cell 2024; 31:25-38.e8. [PMID: 38086390 DOI: 10.1016/j.stem.2023.11.009] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2023] [Revised: 10/25/2023] [Accepted: 11/17/2023] [Indexed: 01/07/2024]
Abstract
Human embryonic stem cell (hESC)-derived midbrain dopaminergic (mDA) cell transplantation is a promising therapeutic strategy for Parkinson's disease (PD). Here, we present the derivation of high-purity mDA progenitors from clinical-grade hESCs on a large scale under rigorous good manufacturing practice (GMP) conditions. We also assessed the toxicity, biodistribution, and tumorigenicity of these cells in immunodeficient rats in good laboratory practice (GLP)-compliant facilities. Various doses of mDA progenitors were transplanted into hemi-parkinsonian rats, and a significant dose-dependent behavioral improvement was observed with a minimal effective dose range of 5,000-10,000 mDA progenitor cells. These results provided insights into determining a low cell dosage (3.15 million cells) for human clinical trials. Based on these results, approval for a phase 1/2a clinical trial for PD cell therapy was obtained from the Ministry of Food and Drug Safety in Korea, and a clinical trial for treating patients with PD has commenced.
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Affiliation(s)
- Sanghyun Park
- Department of Physiology, Yonsei University College of Medicine, Seoul 03722, Republic of Korea
| | - Chan Wook Park
- Department of Physiology, Yonsei University College of Medicine, Seoul 03722, Republic of Korea
| | | | - Mi-Young Jo
- S. Biomedics Co., Ltd., Seoul 04797, Republic of Korea
| | - Hye-Jin Hur
- Department of Physiology, Yonsei University College of Medicine, Seoul 03722, Republic of Korea; S. Biomedics Co., Ltd., Seoul 04797, Republic of Korea
| | | | - Jae Souk Lee
- Department of Physiology, Yonsei University College of Medicine, Seoul 03722, Republic of Korea
| | | | - Ki-Sang Jo
- S. Biomedics Co., Ltd., Seoul 04797, Republic of Korea
| | - Young Woo Oh
- Department of Physiology, Yonsei University College of Medicine, Seoul 03722, Republic of Korea; Brain Korea, 21 PLUS Program for Medical Science, Yonsei University College of Medicine, Seoul 03722, Republic of Korea
| | - Jungil Lee
- Department of Physiology, Yonsei University College of Medicine, Seoul 03722, Republic of Korea; Brain Korea, 21 PLUS Program for Medical Science, Yonsei University College of Medicine, Seoul 03722, Republic of Korea
| | - Sieun Kim
- Department of Physiology, Yonsei University College of Medicine, Seoul 03722, Republic of Korea; Brain Korea, 21 PLUS Program for Medical Science, Yonsei University College of Medicine, Seoul 03722, Republic of Korea
| | - Do-Hun Kim
- Department of Physiology, Yonsei University College of Medicine, Seoul 03722, Republic of Korea; S. Biomedics Co., Ltd., Seoul 04797, Republic of Korea
| | - Chul-Yong Park
- Department of Physiology, Yonsei University College of Medicine, Seoul 03722, Republic of Korea; S. Biomedics Co., Ltd., Seoul 04797, Republic of Korea
| | - Su Jin Kim
- Department of Nuclear Medicine, Seoul National University Bundang Hospital, Seongnam 13620, Gyeonggi-do, Republic of Korea
| | - Ho-Young Lee
- Department of Nuclear Medicine, Seoul National University Bundang Hospital, Seongnam 13620, Gyeonggi-do, Republic of Korea
| | - Myung Soo Cho
- S. Biomedics Co., Ltd., Seoul 04797, Republic of Korea
| | - Dae-Sung Kim
- Department of Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul 02841, Republic of Korea; Department of Pediatrics, Korea University College of Medicine, Guro Hospital, Seoul 08308, Republic of Korea.
| | - Dong-Wook Kim
- Department of Physiology, Yonsei University College of Medicine, Seoul 03722, Republic of Korea; S. Biomedics Co., Ltd., Seoul 04797, Republic of Korea; Brain Korea, 21 PLUS Program for Medical Science, Yonsei University College of Medicine, Seoul 03722, Republic of Korea.
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25
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Gomez Ramos B, Ohnmacht J, de Lange N, Valceschini E, Ginolhac A, Catillon M, Ferrante D, Rakovic A, Halder R, Massart F, Arena G, Antony P, Bolognin S, Klein C, Krause R, Schulz MH, Sauter T, Krüger R, Sinkkonen L. Multiomics analysis identifies novel facilitators of human dopaminergic neuron differentiation. EMBO Rep 2024; 25:254-285. [PMID: 38177910 PMCID: PMC10897179 DOI: 10.1038/s44319-023-00024-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Revised: 11/17/2023] [Accepted: 11/23/2023] [Indexed: 01/06/2024] Open
Abstract
Midbrain dopaminergic neurons (mDANs) control voluntary movement, cognition, and reward behavior under physiological conditions and are implicated in human diseases such as Parkinson's disease (PD). Many transcription factors (TFs) controlling human mDAN differentiation during development have been described, but much of the regulatory landscape remains undefined. Using a tyrosine hydroxylase (TH) human iPSC reporter line, we here generate time series transcriptomic and epigenomic profiles of purified mDANs during differentiation. Integrative analysis predicts novel regulators of mDAN differentiation and super-enhancers are used to identify key TFs. We find LBX1, NHLH1 and NR2F1/2 to promote mDAN differentiation and show that overexpression of either LBX1 or NHLH1 can also improve mDAN specification. A more detailed investigation of TF targets reveals that NHLH1 promotes the induction of neuronal miR-124, LBX1 regulates cholesterol biosynthesis, and NR2F1/2 controls neuronal activity.
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Affiliation(s)
- Borja Gomez Ramos
- Department of Life Sciences and Medicine (DLSM), University of Luxembourg, L-4362, Belvaux, Luxembourg
- Luxembourg Centre for Systems Biomedicine (LCSB), University of Luxembourg, L-4362, Belvaux, Luxembourg
| | - Jochen Ohnmacht
- Department of Life Sciences and Medicine (DLSM), University of Luxembourg, L-4362, Belvaux, Luxembourg
- Luxembourg Centre for Systems Biomedicine (LCSB), University of Luxembourg, L-4362, Belvaux, Luxembourg
| | - Nikola de Lange
- Luxembourg Centre for Systems Biomedicine (LCSB), University of Luxembourg, L-4362, Belvaux, Luxembourg
| | - Elena Valceschini
- Department of Life Sciences and Medicine (DLSM), University of Luxembourg, L-4362, Belvaux, Luxembourg
| | - Aurélien Ginolhac
- Department of Life Sciences and Medicine (DLSM), University of Luxembourg, L-4362, Belvaux, Luxembourg
| | - Marie Catillon
- Department of Life Sciences and Medicine (DLSM), University of Luxembourg, L-4362, Belvaux, Luxembourg
| | - Daniele Ferrante
- Luxembourg Centre for Systems Biomedicine (LCSB), University of Luxembourg, L-4362, Belvaux, Luxembourg
| | - Aleksandar Rakovic
- Institute of Neurogenetics, University of Lübeck, 23538, Lübeck, Germany
| | - Rashi Halder
- Luxembourg Centre for Systems Biomedicine (LCSB), University of Luxembourg, L-4362, Belvaux, Luxembourg
| | - François Massart
- Luxembourg Centre for Systems Biomedicine (LCSB), University of Luxembourg, L-4362, Belvaux, Luxembourg
| | - Giuseppe Arena
- Luxembourg Centre for Systems Biomedicine (LCSB), University of Luxembourg, L-4362, Belvaux, Luxembourg
| | - Paul Antony
- Luxembourg Centre for Systems Biomedicine (LCSB), University of Luxembourg, L-4362, Belvaux, Luxembourg
| | - Silvia Bolognin
- Luxembourg Centre for Systems Biomedicine (LCSB), University of Luxembourg, L-4362, Belvaux, Luxembourg
| | - Christine Klein
- Institute of Neurogenetics, University of Lübeck, 23538, Lübeck, Germany
| | - Roland Krause
- Luxembourg Centre for Systems Biomedicine (LCSB), University of Luxembourg, L-4362, Belvaux, Luxembourg
| | - Marcel H Schulz
- Institute for Cardiovascular Regeneration, Goethe University, 60590, Frankfurt, Germany
- German Centre for Cardiovascular Research, Partner site Rhein-Main, 60590, Frankfurt am Main, Germany
- Cardio-Pulmonary Institute, Goethe University, Frankfurt am Main, Germany
| | - Thomas Sauter
- Department of Life Sciences and Medicine (DLSM), University of Luxembourg, L-4362, Belvaux, Luxembourg
| | - Rejko Krüger
- Luxembourg Centre for Systems Biomedicine (LCSB), University of Luxembourg, L-4362, Belvaux, Luxembourg
- Centre Hospitalier de Luxembourg (CHL), L-1210, Luxembourg, Luxembourg
- Luxembourg Institute of Health (LIH), L-1445, Luxembourg, Luxembourg
| | - Lasse Sinkkonen
- Department of Life Sciences and Medicine (DLSM), University of Luxembourg, L-4362, Belvaux, Luxembourg.
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26
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Fuller J, Dworkin S. In Situ Hybridization to Characterize Neurulation and Midbrain-Hindbrain Boundary Formation in Zebrafish. Methods Mol Biol 2024; 2746:73-85. [PMID: 38070081 DOI: 10.1007/978-1-0716-3585-8_6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2023]
Abstract
Whole-mount in situ hybridization is cable to harness the inherent advantages of zebrafish as a model organism for developmental biology, particularly when visualizing the formation of the neural tube, specifically at the level of the midbrain-hindbrain boundary. The size and transparency of developing zebrafish embryos allow for the visualization of neural markers in vivo along the length of the developing zebrafish central nervous system. In practice, this technique is useful for examining defects in neurulation and midbrain-hindbrain boundary formation that may arise following gene manipulation, for example, CRISPR mutagenesis. This method describes the process of embryo collection and preparation, RNA probe transcription, probe hybridization in vivo, as well as the process of probe detection and visualization.
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Affiliation(s)
- Jarrad Fuller
- Department of Microbiology, Anatomy, Physiology and Pharmacology, La Trobe University, Melbourne, VIC, Australia
| | - Sebastian Dworkin
- Department of Microbiology, Anatomy, Physiology and Pharmacology, La Trobe University, Melbourne, VIC, Australia.
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27
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Li Y, Li Z, Wang C, Yang M, He Z, Wang F, Zhang Y, Li R, Gong Y, Wang B, Fan B, Wang C, Chen L, Li H, Shi P, Wang N, Wei Z, Wang YL, Jin L, Du P, Dong J, Jiao J. Spatiotemporal transcriptome atlas reveals the regional specification of the developing human brain. Cell 2023; 186:5892-5909.e22. [PMID: 38091994 DOI: 10.1016/j.cell.2023.11.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Revised: 08/14/2023] [Accepted: 11/13/2023] [Indexed: 12/24/2023]
Abstract
Different functional regions of brain are fundamental for basic neurophysiological activities. However, the regional specification remains largely unexplored during human brain development. Here, by combining spatial transcriptomics (scStereo-seq) and scRNA-seq, we built a spatiotemporal developmental atlas of multiple human brain regions from 6-23 gestational weeks (GWs). We discovered that, around GW8, radial glia (RG) cells have displayed regional heterogeneity and specific spatial distribution. Interestingly, we found that the regional heterogeneity of RG subtypes contributed to the subsequent neuronal specification. Specifically, two diencephalon-specific subtypes gave rise to glutamatergic and GABAergic neurons, whereas subtypes in ventral midbrain were associated with the dopaminergic neurons. Similar GABAergic neuronal subtypes were shared between neocortex and diencephalon. Additionally, we revealed that cell-cell interactions between oligodendrocyte precursor cells and GABAergic neurons influenced and promoted neuronal development coupled with regional specification. Altogether, this study provides comprehensive insights into the regional specification in the developing human brain.
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Affiliation(s)
- Yanxin Li
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China; Medical School, University of Chinese Academy of Sciences, Beijing 100049, China; Beijing Institute for Stem Cell and Regenerative Medicine, Institute for Stem Cell and Regeneration, Chinese Academy of Sciences, Beijing 100101, China
| | - Zhongqiu Li
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China; Medical School, University of Chinese Academy of Sciences, Beijing 100049, China; Beijing Institute for Stem Cell and Regenerative Medicine, Institute for Stem Cell and Regeneration, Chinese Academy of Sciences, Beijing 100101, China
| | - Changliang Wang
- GMU-GIBH Joint School of Life Sciences, The Guangdong-Hong Kong-Macau Joint Laboratory for Cell Fate Regulation and Diseases, Guangzhou National Laboratory, Guangzhou Medical University, Guangzhou 510799, China
| | - Min Yang
- MOE Key Laboratory of Cell Proliferation and Differentiation, School of Life Sciences, Peking University, Beijing 100871, China
| | - Ziqing He
- GMU-GIBH Joint School of Life Sciences, The Guangdong-Hong Kong-Macau Joint Laboratory for Cell Fate Regulation and Diseases, Guangzhou National Laboratory, Guangzhou Medical University, Guangzhou 510799, China; Faculty of Health Sciences University of Macau, Macau 999078, China
| | - Feiyang Wang
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China; Medical School, University of Chinese Academy of Sciences, Beijing 100049, China; Beijing Institute for Stem Cell and Regenerative Medicine, Institute for Stem Cell and Regeneration, Chinese Academy of Sciences, Beijing 100101, China
| | - Yuehong Zhang
- Tongzhou Maternal and Child Health Hospital of Beijing, Beijing 101100, China
| | - Rong Li
- Beijing Key Laboratory of Reproductive Endocrinology and Assisted Reproductive Technology and Key Laboratory of Assisted Reproduction, Department of Obstetrics and Gynecology, Ministry of Education, Center for Reproductive Medicine, Peking University Third Hospital, Beijing 100191, China; National Clinical Center for Obstetrics and Gynecology, Peking University Third Hospital, Beijing 100191, China
| | - Yunxia Gong
- Tongzhou Maternal and Child Health Hospital of Beijing, Beijing 101100, China
| | - Binhong Wang
- Tongzhou Maternal and Child Health Hospital of Beijing, Beijing 101100, China
| | - Baoguang Fan
- Tongzhou Maternal and Child Health Hospital of Beijing, Beijing 101100, China
| | - Chunyue Wang
- Tongzhou Maternal and Child Health Hospital of Beijing, Beijing 101100, China
| | - Lei Chen
- Six Medical Center, Chinese PLA General Hospital, Beijing 100048, China
| | - Hong Li
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China; Medical School, University of Chinese Academy of Sciences, Beijing 100049, China; Beijing Institute for Stem Cell and Regenerative Medicine, Institute for Stem Cell and Regeneration, Chinese Academy of Sciences, Beijing 100101, China
| | - Peifu Shi
- Annoroad Gene Technology, Beijing 100176, China
| | - Nana Wang
- Annoroad Gene Technology, Beijing 100176, China
| | - Zhifeng Wei
- Annoroad Gene Technology, Beijing 100176, China
| | - Yan-Ling Wang
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China; Medical School, University of Chinese Academy of Sciences, Beijing 100049, China; Beijing Institute for Stem Cell and Regenerative Medicine, Institute for Stem Cell and Regeneration, Chinese Academy of Sciences, Beijing 100101, China
| | - Lei Jin
- Institute of Reproductive and Child Health, Peking University, National Health Commission Key Laboratory, Peking University, Beijing 100191, China; Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing 100191, China.
| | - Peng Du
- MOE Key Laboratory of Cell Proliferation and Differentiation, School of Life Sciences, Peking University, Beijing 100871, China; Peking-Tsinghua Center for Life Sciences, Peking University, Beijing 100871, China.
| | - Ji Dong
- GMU-GIBH Joint School of Life Sciences, The Guangdong-Hong Kong-Macau Joint Laboratory for Cell Fate Regulation and Diseases, Guangzhou National Laboratory, Guangzhou Medical University, Guangzhou 510799, China.
| | - Jianwei Jiao
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China; Medical School, University of Chinese Academy of Sciences, Beijing 100049, China; Beijing Institute for Stem Cell and Regenerative Medicine, Institute for Stem Cell and Regeneration, Chinese Academy of Sciences, Beijing 100101, China.
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28
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Cardo LF, Monzón-Sandoval J, Li Z, Webber C, Li M. Single-Cell Transcriptomics and In Vitro Lineage Tracing Reveals Differential Susceptibility of Human iPSC-Derived Midbrain Dopaminergic Neurons in a Cellular Model of Parkinson's Disease. Cells 2023; 12:2860. [PMID: 38132179 PMCID: PMC10741976 DOI: 10.3390/cells12242860] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Revised: 12/11/2023] [Accepted: 12/15/2023] [Indexed: 12/23/2023] Open
Abstract
Advances in stem cell technologies open up new avenues for modelling development and diseases. The success of these pursuits, however, relies on the use of cells most relevant to those targeted by the disease of interest, for example, midbrain dopaminergic neurons for Parkinson's disease. In the present study, we report the generation of a human induced pluripotent stem cell (iPSC) line capable of purifying and tracing nascent midbrain dopaminergic progenitors and their differentiated progeny via the expression of a Blue Fluorescent Protein (BFP). This was achieved by CRISPR/Cas9-assisted knock-in of BFP and Cre into the safe harbour locus AAVS1 and an early midbrain dopaminergic lineage marker gene LMX1A, respectively. Immunocytochemical analysis and single-cell RNA sequencing of iPSC-derived neural cultures confirm developmental recapitulation of the human fetal midbrain and high-quality midbrain cells. By modelling Parkinson's disease-related drug toxicity using 1-Methyl-4-phenylpyridinium (MPP+), we showed a preferential reduction of BFP+ cells, a finding demonstrated independently by cell death assays and single-cell transcriptomic analysis of MPP+ treated neural cultures. Together, these results highlight the importance of disease-relevant cell types in stem cell modelling.
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Affiliation(s)
- Lucia F. Cardo
- Dementia Research Institute, School of Medicine, Cardiff University, Hadyn Ellis Building, Maindy Road, Cardiff CF24 4HQ, UK; (L.F.C.); (J.M.-S.); (Z.L.)
| | - Jimena Monzón-Sandoval
- Dementia Research Institute, School of Medicine, Cardiff University, Hadyn Ellis Building, Maindy Road, Cardiff CF24 4HQ, UK; (L.F.C.); (J.M.-S.); (Z.L.)
| | - Zongze Li
- Dementia Research Institute, School of Medicine, Cardiff University, Hadyn Ellis Building, Maindy Road, Cardiff CF24 4HQ, UK; (L.F.C.); (J.M.-S.); (Z.L.)
- Neuroscience and Mental Health Innovation Institute, School of Medicine, Cardiff University, Hadyn Ellis Building, Maindy Road, Cardiff CF24 4HQ, UK
| | - Caleb Webber
- Dementia Research Institute, School of Medicine, Cardiff University, Hadyn Ellis Building, Maindy Road, Cardiff CF24 4HQ, UK; (L.F.C.); (J.M.-S.); (Z.L.)
| | - Meng Li
- Neuroscience and Mental Health Innovation Institute, School of Medicine, Cardiff University, Hadyn Ellis Building, Maindy Road, Cardiff CF24 4HQ, UK
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29
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Maimaitili M, Chen M, Febbraro F, Ucuncu E, Kelly R, Niclis JC, Christiansen JR, Mermet-Joret N, Niculescu D, Lauritsen J, Iannielli A, Klæstrup IH, Jensen UB, Qvist P, Nabavi S, Broccoli V, Nykjær A, Romero-Ramos M, Denham M. Enhanced production of mesencephalic dopaminergic neurons from lineage-restricted human undifferentiated stem cells. Nat Commun 2023; 14:7871. [PMID: 38052784 DOI: 10.1038/s41467-023-43471-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Accepted: 11/10/2023] [Indexed: 12/07/2023] Open
Abstract
Current differentiation protocols for generating mesencephalic dopaminergic (mesDA) neurons from human pluripotent stem cells result in grafts containing only a small proportion of mesDA neurons when transplanted in vivo. In this study, we develop lineage-restricted undifferentiated stem cells (LR-USCs) from pluripotent stem cells, which enhances their potential for differentiating into caudal midbrain floor plate progenitors and mesDA neurons. Using a ventral midbrain protocol, 69% of LR-USCs become bona fide caudal midbrain floor plate progenitors, compared to only 25% of human embryonic stem cells (hESCs). Importantly, LR-USCs generate significantly more mesDA neurons under midbrain and hindbrain conditions in vitro and in vivo. We demonstrate that midbrain-patterned LR-USC progenitors transplanted into 6-hydroxydopamine-lesioned rats restore function in a clinically relevant non-pharmacological behavioral test, whereas midbrain-patterned hESC-derived progenitors do not. This strategy demonstrates how lineage restriction can prevent the development of undesirable lineages and enhance the conditions necessary for mesDA neuron generation.
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Affiliation(s)
- Muyesier Maimaitili
- Danish Research Institute of Translational Neuroscience (DANDRITE), Nordic EMBL Partnership for Molecular Medicine, Aarhus University, 8000C, Aarhus, Denmark
- Department of Biomedicine, Aarhus University, 8000C, Aarhus, Denmark
| | - Muwan Chen
- Danish Research Institute of Translational Neuroscience (DANDRITE), Nordic EMBL Partnership for Molecular Medicine, Aarhus University, 8000C, Aarhus, Denmark
- Department of Biomedicine, Aarhus University, 8000C, Aarhus, Denmark
| | - Fabia Febbraro
- Department of Biomedicine, Aarhus University, 8000C, Aarhus, Denmark
- Department of Clinical Genetics, Aarhus University Hospital, 8200, Aarhus, Denmark
| | - Ekin Ucuncu
- Danish Research Institute of Translational Neuroscience (DANDRITE), Nordic EMBL Partnership for Molecular Medicine, Aarhus University, 8000C, Aarhus, Denmark
- Department of Biomedicine, Aarhus University, 8000C, Aarhus, Denmark
| | - Rachel Kelly
- Danish Research Institute of Translational Neuroscience (DANDRITE), Nordic EMBL Partnership for Molecular Medicine, Aarhus University, 8000C, Aarhus, Denmark
- Department of Biomedicine, Aarhus University, 8000C, Aarhus, Denmark
| | | | | | - Noëmie Mermet-Joret
- Danish Research Institute of Translational Neuroscience (DANDRITE), Nordic EMBL Partnership for Molecular Medicine, Aarhus University, 8000C, Aarhus, Denmark
- Department of Molecular Biology and Genetics, Aarhus University, 8000C, Aarhus, Denmark
- Center of Excellence PROMEMO, Aarhus University, Aarhus, Denmark
| | - Dragos Niculescu
- Danish Research Institute of Translational Neuroscience (DANDRITE), Nordic EMBL Partnership for Molecular Medicine, Aarhus University, 8000C, Aarhus, Denmark
- Department of Biomedicine, Aarhus University, 8000C, Aarhus, Denmark
- Center of Excellence PROMEMO, Aarhus University, Aarhus, Denmark
| | - Johanne Lauritsen
- Danish Research Institute of Translational Neuroscience (DANDRITE), Nordic EMBL Partnership for Molecular Medicine, Aarhus University, 8000C, Aarhus, Denmark
- Department of Biomedicine, Aarhus University, 8000C, Aarhus, Denmark
| | - Angelo Iannielli
- Stem Cell and Neurogenesis Unit, Division of Neuroscience, IRCCS San Raffaele Scientific Institute, 20132, Milan, Italy
- CNR Institute of Neuroscience, 20129, Milan, Italy
| | - Ida H Klæstrup
- Danish Research Institute of Translational Neuroscience (DANDRITE), Nordic EMBL Partnership for Molecular Medicine, Aarhus University, 8000C, Aarhus, Denmark
- Department of Biomedicine, Aarhus University, 8000C, Aarhus, Denmark
| | - Uffe Birk Jensen
- Department of Biomedicine, Aarhus University, 8000C, Aarhus, Denmark
- Department of Clinical Genetics, Aarhus University Hospital, 8200, Aarhus, Denmark
| | - Per Qvist
- Department of Biomedicine, Aarhus University, 8000C, Aarhus, Denmark
- Lundbeck Foundation Initiative for Integrative Psychiatric Research, iPSYCH, 8000C, Aarhus, Denmark
- Centre for Integrative Sequencing, iSEQ, Aarhus University, 8000C, Aarhus, Denmark
- Centre for Genomics and Personalized Medicine, CGPM, Aarhus University, 8000C, Aarhus, Denmark
| | - Sadegh Nabavi
- Danish Research Institute of Translational Neuroscience (DANDRITE), Nordic EMBL Partnership for Molecular Medicine, Aarhus University, 8000C, Aarhus, Denmark
- Department of Molecular Biology and Genetics, Aarhus University, 8000C, Aarhus, Denmark
- Center of Excellence PROMEMO, Aarhus University, Aarhus, Denmark
| | - Vania Broccoli
- Stem Cell and Neurogenesis Unit, Division of Neuroscience, IRCCS San Raffaele Scientific Institute, 20132, Milan, Italy
- CNR Institute of Neuroscience, 20129, Milan, Italy
| | - Anders Nykjær
- Danish Research Institute of Translational Neuroscience (DANDRITE), Nordic EMBL Partnership for Molecular Medicine, Aarhus University, 8000C, Aarhus, Denmark
- Department of Biomedicine, Aarhus University, 8000C, Aarhus, Denmark
- Center of Excellence PROMEMO, Aarhus University, Aarhus, Denmark
| | - Marina Romero-Ramos
- Danish Research Institute of Translational Neuroscience (DANDRITE), Nordic EMBL Partnership for Molecular Medicine, Aarhus University, 8000C, Aarhus, Denmark
- Department of Biomedicine, Aarhus University, 8000C, Aarhus, Denmark
| | - Mark Denham
- Danish Research Institute of Translational Neuroscience (DANDRITE), Nordic EMBL Partnership for Molecular Medicine, Aarhus University, 8000C, Aarhus, Denmark.
- Department of Biomedicine, Aarhus University, 8000C, Aarhus, Denmark.
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30
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Dangarembizi R, Drummond R. Immune-related neurodegeneration in the midbrain causes pulmonary dysfunction in murine cryptococcal IRIS. Trends Neurosci 2023; 46:1003-1004. [PMID: 37806831 DOI: 10.1016/j.tins.2023.09.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2023] [Accepted: 09/22/2023] [Indexed: 10/10/2023]
Abstract
Cryptococcal immune reconstitution inflammatory syndrome (C-IRIS) is a condition that affects immunosuppressed individuals recruited to antiretroviral therapy. In a recent publication, Kawano and colleagues used a mouse model to demonstrate that pulmonary dysfunction, one of the fatal complications of C-IRIS, is caused by T cell-driven neurodegeneration in a vital medullary nucleus of the brain responsible for respiratory control.
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Affiliation(s)
- Rachael Dangarembizi
- Division of Physiological Sciences, Department of Human Biology, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa; Neuroscience Institute, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa; CMM AFRICA Medical Mycology Research Unit, Institute of Infectious Disease and Molecular Medicine, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa.
| | - Rebecca Drummond
- Institute of Immunology & Immunotherapy, University of Birmingham, Birmingham, UK
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31
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Wijdicks EFM, Braksick S, Rinaldo L. Perimesencephalic Hemorrhage from A Superior Cerebellar Artery Dissection. Ann Neurol 2023; 94:1164-1165. [PMID: 37635300 DOI: 10.1002/ana.26779] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Revised: 08/14/2023] [Accepted: 08/18/2023] [Indexed: 08/29/2023]
Affiliation(s)
- Eelco F M Wijdicks
- Department of Neurology, Mayo Clinic Rochester, Rochester, Minnesota, USA
| | - Sherri Braksick
- Department of Neurology, Mayo Clinic Rochester, Rochester, Minnesota, USA
| | - Lorenzo Rinaldo
- Department of Neurosurgery, Mayo Clinic Rochester, Rochester, Minnesota, USA
- Department of Radiology, Mayo Clinic Rochester, Rochester, Minnesota, USA
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32
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Mohammed HS, Hosny EN, Sawie HG, Khadrawy YA. Transcranial photobiomodulation ameliorates midbrain and striatum neurochemical impairments and behavioral deficits in reserpine-induced parkinsonism in rats. Photochem Photobiol Sci 2023; 22:2891-2904. [PMID: 37917308 DOI: 10.1007/s43630-023-00497-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Accepted: 10/15/2023] [Indexed: 11/04/2023]
Abstract
Photobiomodulation (PBM) of deep brain structures through transcranial infrared irradiation might be an effective treatment for Parkinson's disease (PD). However, the mechanisms underlying this intervention should be elucidated to optimize the therapeutic outcome and maximize therapeutic efficacy. The present study aimed at investigating the oxidative stress-related parameters of malondialdehyde (MDA), nitric oxide (NO), and reduced glutathione (GSH) and the enzymatic activities of sodium-potassium-ATPase (Na+, K+-ATPase), Acetylcholinesterase (AChE), and monoamine oxidase (MAO) and monoamine levels (dopamine (DA), norepinephrine (NE) and serotonin (5-HT) in the midbrain and striatum of reserpine-induced PD in an animal model treated with PBM. Furthermore, the locomotor behavior of the animals has been determined by the open field test. Animals were divided into three groups; the control group, the PD-induced model group, and the PD-induced model treated with the PBM group. Non-invasive treatment of animals for 14 days with 100 mW, 830 nm laser has demonstrated successful attainment in the recovery of oxidative stress, and enzymatic activities impairments induced by reserpine (0.2 mg/kg) in both midbrain and striatum of adult male Wistar rats. PBM also improved the decrease in DA, NE, and 5-HT in the investigated brain regions. On a behavioral level, animals showed improvement in their locomotion activity. These findings have shed more light on some mechanisms underlying the treatment potential of PBM and displayed the safety, easiness, and efficacy of PBM treatment as an alternative to pharmacological treatment for PD.
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Affiliation(s)
- Haitham S Mohammed
- Faculty of Science, Biophysics Department, Cairo University, Giza, Egypt.
| | - Eman N Hosny
- Medical Division, Medical Physiology Department, National Research Centre, Giza, Egypt
| | - Hussein G Sawie
- Medical Division, Medical Physiology Department, National Research Centre, Giza, Egypt
| | - Yasser A Khadrawy
- Medical Division, Medical Physiology Department, National Research Centre, Giza, Egypt
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33
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Zald DH. The influence of dopamine autoreceptors on temperament and addiction risk. Neurosci Biobehav Rev 2023; 155:105456. [PMID: 37926241 DOI: 10.1016/j.neubiorev.2023.105456] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Revised: 10/22/2023] [Accepted: 10/31/2023] [Indexed: 11/07/2023]
Abstract
As a major regulator of dopamine (DA), DA autoreceptors (DAARs) exert substantial influence over DA-mediated behaviors. This paper reviews the physiological and behavioral impact of DAARs. Individual differences in DAAR functioning influences temperamental traits such as novelty responsivity and impulsivity, both of which are associated with vulnerability to addictive behavior in animal models and a broad array of externalizing behaviors in humans. DAARs additionally impact the response to psychostimulants and other drugs of abuse. Human PET studies of D2-like receptors in the midbrain provide evidence for parallels to the animal literature. These data lead to the proposal that weak DAAR regulation is a risk factor for addiction and externalizing problems. The review highlights the potential to build translational models of the functional role of DAARs in behavior. It also draws attention to key limitations in the current literature that would need to be addressed to further advance a weak DAAR regulation model of addiction and externalizing risk.
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Affiliation(s)
- David H Zald
- Center for Advanced Human Brain Imaging and Department of Psychiatry, Rutgers University, Piscataway, NJ, USA.
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34
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Xu Y, Hong H, Lin X, Tong T, Zhang J, He H, Yang L, Mao G, Hao R, Deng P, Yu Z, Pi H, Cheng Y, Zhou Z. Chronic cadmium exposure induces Parkinson-like syndrome by eliciting sphingolipid disturbance and neuroinflammation in the midbrain of C57BL/6J mice. Environ Pollut 2023; 337:122606. [PMID: 37742865 DOI: 10.1016/j.envpol.2023.122606] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Revised: 09/18/2023] [Accepted: 09/21/2023] [Indexed: 09/26/2023]
Abstract
Cadmium (Cd) is known as a widespread environmental neurotoxic pollutant. Cd exposure is recently recognized as an etiological factor of Parkinson's disease (PD) in humans. However, the mechanism underlying Cd neurotoxicity in relation to Parkinsonism pathogenesis is unclear. In our present study, C57BL/6 J mice were exposed to 100 mg/L CdCl2 in drinking water for 8 weeks. It was found Cd exposure caused motor deficits, decreased DA neurons and induced neuropathological changes in the midbrain. Non-targeted lipidomic analysis uncovered that Cd exposure altered lipid profile, increased the content of proinflammatory sphingolipid ceramides (Cer), sphingomyelin (SM) and ganglioside (GM3) in the midbrain. In consistency with increased proinflammatory lipids, the mRNA levels of genes encoding sphingolipids biosynthesis in the midbrain were dysregulated by Cd exposure. Neuroinflammation in the midbrain was evinced by the up-regulation of proinflammatory cytokines at mRNA and protein levels. Blood Cd contents and lipid metabolites in Parkinsonism patients by ICP-MS and LC-MS/MS analyses demonstrated that elevated blood Cd concentration and proinflammatory lipid metabolites were positively associated with the score of Unified Parkinson's Disease Rating Scale (UPDRS). 3 ceramide metabolites in the blood showed good specificity as the candidate biomarkers to predict and monitor Parkinsonism and Cd neurotoxicity (AUC>0.7, p < 0.01). In summary, our present study uncovered that perturbed sphingomyelin lipid metabolism is related to the Parkinsonism pathogenesis and Cd neurotoxicity, partially compensated for the deficiency in particular metabolic biomarkers for Parkinsonism in relation to Cd exposure, and emphasized the necessity of reducing Cd exposure at population level.
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Affiliation(s)
- Yudong Xu
- Department of Environmental Medicine, Zhejiang University School of Medicine, Hangzhou, China
| | - Huihui Hong
- Center for Neurointelligence, School of Medicine, Chongqing University, Chongqing, China
| | - Xiqin Lin
- Department of Environmental Medicine, Zhejiang University School of Medicine, Hangzhou, China
| | - Tong Tong
- Department of Environmental Medicine, Zhejiang University School of Medicine, Hangzhou, China
| | - Jingjing Zhang
- Department of Environmental Medicine, Zhejiang University School of Medicine, Hangzhou, China
| | - Haotian He
- Department of Environmental Medicine, Zhejiang University School of Medicine, Hangzhou, China
| | - Lingling Yang
- Department of Occupational Health, Third Military Medical University, Chongqing, China
| | - Gaofeng Mao
- Neurology Department, General Hospital of Center Theater Command, Wuhan, China
| | - Rongrong Hao
- Department of Occupational Health, Third Military Medical University, Chongqing, China
| | - Ping Deng
- Department of Occupational Health, Third Military Medical University, Chongqing, China
| | - Zhengping Yu
- Department of Occupational Health, Third Military Medical University, Chongqing, China
| | - Huifeng Pi
- Department of Occupational Health, Third Military Medical University, Chongqing, China
| | - Yong Cheng
- Neurology Department, General Hospital of Center Theater Command, Wuhan, China
| | - Zhou Zhou
- Department of Environmental Medicine, Zhejiang University School of Medicine, Hangzhou, China; Center for Neurointelligence, School of Medicine, Chongqing University, Chongqing, China.
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35
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Wang X, Wu X, Wu H, Xiao H, Hao S, Wang B, Li C, Bleymehl K, Kauschke SG, Mack V, Ferger B, Klein H, Zheng R, Duan S, Wang H. Neural adaption in midbrain GABAergic cells contributes to high-fat diet-induced obesity. Sci Adv 2023; 9:eadh2884. [PMID: 37910621 PMCID: PMC10619925 DOI: 10.1126/sciadv.adh2884] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/23/2023] [Accepted: 09/29/2023] [Indexed: 11/03/2023]
Abstract
Overeating disorders largely contribute to worldwide incidences of obesity. Available treatments are limited. Here, we discovered that long-term chemogenetic activation of ventrolateral periaqueductal gray (vlPAG) GABAergic cells rescue obesity of high-fat diet-induced obesity (DIO) mice. This was associated with the recovery of enhanced mIPSCs, decreased food intake, increased energy expenditure, and inguinal white adipose tissue (iWAT) browning. In vivo calcium imaging confirmed vlPAG GABAergic suppression for DIO mice, with corresponding reduction in intrinsic excitability. Single-nucleus RNA sequencing identified transcriptional expression changes in GABAergic cell subtypes in DIO mice, highlighting Cacna2d1 as of potential importance. Overexpressing CACNA2D1 in vlPAG GABAergic cells of DIO mice rescued enhanced mIPSCs and calcium response, reversed obesity, and therefore presented here as a potential target for obesity treatment.
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Affiliation(s)
- Xiaomeng Wang
- Department of Neurosurgery of Second Affiliated Hospital and School of Brain Science and Brain Medicine, Key Laboratory for Biomedical Engineering of Education Ministry, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310058, China
- Nanhu Brain-computer Interface Institute, Hangzhou 311100, China
- NHC and CAMS Key Laboratory of Medical Neurobiology, MOE Frontier Science Center for Brain Research and Brain Machine Integration, Key Laboratory of Precise Treatment and Clinical Translational Research of Neurological Diseases, School of Brain Science and Brain Medicine, Zhejiang University, Hangzhou, Zhejiang 310058, China
| | - Xiaotong Wu
- Department of Neurosurgery of Second Affiliated Hospital and School of Brain Science and Brain Medicine, Key Laboratory for Biomedical Engineering of Education Ministry, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310058, China
- NHC and CAMS Key Laboratory of Medical Neurobiology, MOE Frontier Science Center for Brain Research and Brain Machine Integration, Key Laboratory of Precise Treatment and Clinical Translational Research of Neurological Diseases, School of Brain Science and Brain Medicine, Zhejiang University, Hangzhou, Zhejiang 310058, China
| | - Hao Wu
- Institute of Hematology, Zhejiang University, Hangzhou, Zhejiang, 310058, China
- Zhejiang Laboratory for Systems and Precision Medicine, Zhejiang University Medical Center, Hangzhou, Zhejiang 310058, China
| | - Hanyang Xiao
- Department of Neurosurgery of Second Affiliated Hospital and School of Brain Science and Brain Medicine, Key Laboratory for Biomedical Engineering of Education Ministry, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310058, China
- NHC and CAMS Key Laboratory of Medical Neurobiology, MOE Frontier Science Center for Brain Research and Brain Machine Integration, Key Laboratory of Precise Treatment and Clinical Translational Research of Neurological Diseases, School of Brain Science and Brain Medicine, Zhejiang University, Hangzhou, Zhejiang 310058, China
| | - Sijia Hao
- Department of Neurosurgery of Second Affiliated Hospital and School of Brain Science and Brain Medicine, Key Laboratory for Biomedical Engineering of Education Ministry, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310058, China
- NHC and CAMS Key Laboratory of Medical Neurobiology, MOE Frontier Science Center for Brain Research and Brain Machine Integration, Key Laboratory of Precise Treatment and Clinical Translational Research of Neurological Diseases, School of Brain Science and Brain Medicine, Zhejiang University, Hangzhou, Zhejiang 310058, China
| | - Bingwei Wang
- Department of Anatomy, Histology and Embryology, School of Basic Medical Sciences, Health Science Center, Peking University, Beijing 100091, China
| | - Chen Li
- Department of Human Genetics and Women's Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310058, China
| | - Katherin Bleymehl
- Department of CardioMetabolic Diseases Research, Boehringer Ingelheim Pharma GmbH & Co. KG, Biberach, 88397, Germany
| | - Stefan G. Kauschke
- Department of CardioMetabolic Diseases Research, Boehringer Ingelheim Pharma GmbH & Co. KG, Biberach, 88397, Germany
| | - Volker Mack
- Department of CardioMetabolic Diseases Research, Boehringer Ingelheim Pharma GmbH & Co. KG, Biberach, 88397, Germany
| | - Boris Ferger
- Department of CardioMetabolic Diseases Research, Boehringer Ingelheim Pharma GmbH & Co. KG, Biberach, 88397, Germany
| | - Holger Klein
- Global Computational Biology and Digital Sciences, Boehringer Ingelheim Pharma GmbH & Co. KG, Biberach, 88397, Germany
| | - Ruimao Zheng
- Department of Anatomy, Histology and Embryology, School of Basic Medical Sciences, Health Science Center, Peking University, Beijing 100091, China
| | - Shumin Duan
- Department of Neurosurgery of Second Affiliated Hospital and School of Brain Science and Brain Medicine, Key Laboratory for Biomedical Engineering of Education Ministry, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310058, China
- NHC and CAMS Key Laboratory of Medical Neurobiology, MOE Frontier Science Center for Brain Research and Brain Machine Integration, Key Laboratory of Precise Treatment and Clinical Translational Research of Neurological Diseases, School of Brain Science and Brain Medicine, Zhejiang University, Hangzhou, Zhejiang 310058, China
| | - Hao Wang
- Department of Neurosurgery of Second Affiliated Hospital and School of Brain Science and Brain Medicine, Key Laboratory for Biomedical Engineering of Education Ministry, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310058, China
- Nanhu Brain-computer Interface Institute, Hangzhou 311100, China
- NHC and CAMS Key Laboratory of Medical Neurobiology, MOE Frontier Science Center for Brain Research and Brain Machine Integration, Key Laboratory of Precise Treatment and Clinical Translational Research of Neurological Diseases, School of Brain Science and Brain Medicine, Zhejiang University, Hangzhou, Zhejiang 310058, China
- Lingang Laboratory, Shanghai 200031, China
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McAfee SS, Robinson G, Gajjar A, Zhang S, Bag AK, Raches D, Conklin HM, Khan RB, Scoggins MA. Cerebellar mutism is linked to midbrain volatility and desynchronization from speech cortices. Brain 2023; 146:4755-4765. [PMID: 37343136 PMCID: PMC10629755 DOI: 10.1093/brain/awad209] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Revised: 05/09/2023] [Accepted: 05/30/2023] [Indexed: 06/23/2023] Open
Abstract
Cerebellar mutism syndrome is a disorder of speech, movement and affect that can occur after tumour removal from the posterior fossa. Projections from the fastigial nuclei to the periaqueductal grey area were recently implicated in its pathogenesis, but the functional consequences of damaging these projections remain poorly understood. Here, we examine functional MRI data from patients treated for medulloblastoma to identify functional changes in key brain areas that comprise the motor system for speech, which occur along the timeline of acute speech impairment in cerebellar mutism syndrome. One hundred and twenty-four participants, all with medulloblastoma, contributed to the study: 45 with cerebellar mutism syndrome, 11 patients with severe postoperative deficits other than mutism, and 68 without either (asymptomatic). We first performed a data-driven parcellation to spatially define functional nodes relevant to the cohort that align with brain regions critical for the motor control of speech. We then estimated functional connectivity between these nodes during the initial postoperative imaging sessions to identify functional deficits associated with the acute phase of the disorder. We further analysed how functional connectivity changed over time within a subset of participants that had suitable imaging acquired over the course of recovery. Signal dispersion was also measured in the periaqueductal grey area and red nuclei to estimate activity in midbrain regions considered key targets of the cerebellum with suspected involvement in cerebellar mutism pathogenesis. We found evidence of periaqueductal grey dysfunction in the acute phase of the disorder, with abnormal volatility and desynchronization with neocortical language nodes. Functional connectivity with periaqueductal grey was restored in imaging sessions that occurred after speech recovery and was further shown to be increased with left dorsolateral prefrontal cortex. The amygdalae were also broadly hyperconnected with neocortical nodes in the acute phase. Stable connectivity differences between groups were broadly present throughout the cerebrum, and one of the most substantial differences-between Broca's area and the supplementary motor area-was found to be inversely related to cerebellar outflow pathway damage in the mutism group. These results reveal systemic changes in the speech motor system of patients with mutism, centred on limbic areas tasked with the control of phonation. These findings provide further support for the hypothesis that periaqueductal grey dysfunction (following cerebellar surgical injury) contributes to the transient postoperative non-verbal episode commonly observed in cerebellar mutism syndrome but highlights a potential role of intact cerebellocortical projections in chronic features of the disorder.
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Affiliation(s)
- Samuel S McAfee
- Department of Diagnostic Imaging, St. Jude Children’s Research Hospital, Memphis, TN 38105, USA
| | - Giles Robinson
- Department of Oncology, St. Jude Children’s Research Hospital, Memphis, TN 38105, USA
| | - Amar Gajjar
- Department of Oncology, St. Jude Children’s Research Hospital, Memphis, TN 38105, USA
| | - Silu Zhang
- Department of Diagnostic Imaging, St. Jude Children’s Research Hospital, Memphis, TN 38105, USA
| | - Asim K Bag
- Department of Diagnostic Imaging, St. Jude Children’s Research Hospital, Memphis, TN 38105, USA
| | - Darcy Raches
- Department of Psychology, St. Jude Children’s Research Hospital, Memphis, TN 38105, USA
| | - Heather M Conklin
- Department of Psychology, St. Jude Children’s Research Hospital, Memphis, TN 38105, USA
| | - Raja B Khan
- Division of Neurology, Department of Pediatrics, St. Jude Children’s Research Hospital, Memphis, TN 38105, USA
| | - Matthew A Scoggins
- Department of Diagnostic Imaging, St. Jude Children’s Research Hospital, Memphis, TN 38105, USA
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Caldwell M, Ayo-Jibunoh V, Mendoza JC, Brimblecombe KR, Reynolds LM, Zhu Jiang XY, Alarcon C, Fiore E, N Tomaio J, Phillips GR, Mingote S, Flores C, Casaccia P, Liu J, Cragg SJ, McCloskey DP, Yetnikoff L. Axo-glial interactions between midbrain dopamine neurons and oligodendrocyte lineage cells in the anterior corpus callosum. Brain Struct Funct 2023; 228:1993-2006. [PMID: 37668732 PMCID: PMC10516790 DOI: 10.1007/s00429-023-02695-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Accepted: 08/09/2023] [Indexed: 09/06/2023]
Abstract
Oligodendrocyte progenitor cells (OPCs) receive synaptic innervation from glutamatergic and GABAergic axons and can be dynamically regulated by neural activity, resulting in activity-dependent changes in patterns of axon myelination. However, it remains unclear to what extent other types of neurons may innervate OPCs. Here, we provide evidence implicating midbrain dopamine neurons in the innervation of oligodendrocyte lineage cells in the anterior corpus callosum and nearby white matter tracts of male and female adult mice. Dopaminergic axon terminals were identified in the corpus callosum of DAT-Cre mice after injection of an eYFP reporter virus into the midbrain. Furthermore, fast-scan cyclic voltammetry revealed monoaminergic transients in the anterior corpus callosum, consistent with the anatomical findings. Using RNAscope, we further demonstrate that ~ 40% of Olig2 + /Pdfgra + cells and ~ 20% of Olig2 + /Pdgfra- cells in the anterior corpus callosum express Drd1 and Drd2 transcripts. These results suggest that oligodendrocyte lineage cells may respond to dopamine released from midbrain dopamine axons, which could affect myelination. Together, this work broadens our understanding of neuron-glia interactions with important implications for myelin plasticity by identifying midbrain dopamine axons as a potential regulator of corpus callosal oligodendrocyte lineage cells.
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Affiliation(s)
- Megan Caldwell
- CUNY Neuroscience Collaborative, The Graduate Center, City University of New York, 365 5Th Ave, New York, NY, 10016, USA
- Department of Psychology, College of Staten Island, City University of New York, 2800 Victory Boulevard, Staten Island, NY, 10314, USA
| | - Vanessa Ayo-Jibunoh
- Department of Psychology, College of Staten Island, City University of New York, 2800 Victory Boulevard, Staten Island, NY, 10314, USA
| | - Josue Criollo Mendoza
- Department of Biology, College of Staten Island, City University of New York, 2800 Victory Boulevard, Staten Island, NY, 10314, USA
| | - Katherine R Brimblecombe
- Centre for Integrative Neuroscience, Department of Physiology, Anatomy and Genetics, University of Oxford, Oxford, OX1 3PT, UK
- Oxford Parkinson's Disease Centre, University of Oxford, Oxford, OX1 3PT, UK
- Aligning Science Across Parkinson's (ASAP) Collaborative Research Network, Chevy Chase, MD, 20815, USA
| | - Lauren M Reynolds
- Plasticité du Cerveau, CNRS UMR8249, École Supérieure de Physique et de Chimie Industrielles de la Ville de Paris (ESPCI Paris), Paris, France
| | - Xin Yan Zhu Jiang
- Department of Biology, College of Staten Island, City University of New York, 2800 Victory Boulevard, Staten Island, NY, 10314, USA
| | - Colin Alarcon
- Department of Psychology, College of Staten Island, City University of New York, 2800 Victory Boulevard, Staten Island, NY, 10314, USA
| | - Elizabeth Fiore
- Department of Psychology, College of Staten Island, City University of New York, 2800 Victory Boulevard, Staten Island, NY, 10314, USA
| | - Jacquelyn N Tomaio
- CUNY Neuroscience Collaborative, The Graduate Center, City University of New York, 365 5Th Ave, New York, NY, 10016, USA
- Neuroscience Initiative, Advanced Science Research Center, Graduate Center of The City University of New York, New York, NY, USA
| | - Greg R Phillips
- CUNY Neuroscience Collaborative, The Graduate Center, City University of New York, 365 5Th Ave, New York, NY, 10016, USA
- Department of Biology, College of Staten Island, City University of New York, 2800 Victory Boulevard, Staten Island, NY, 10314, USA
- Center for Developmental Neuroscience, College of Staten Island, City University of New York, 2800 Victory Boulevard, Staten Island, NY, 10314, USA
| | - Susana Mingote
- CUNY Neuroscience Collaborative, The Graduate Center, City University of New York, 365 5Th Ave, New York, NY, 10016, USA
- Neuroscience Initiative, Advanced Science Research Center, Graduate Center of The City University of New York, New York, NY, USA
| | - Cecilia Flores
- Department of Psychiatry and of Neurology and Neuroscience, McGill University, and Douglas Mental Health University Institute, Montreal, QC, Canada
| | - Patrizia Casaccia
- Neuroscience Initiative, Advanced Science Research Center, Graduate Center of The City University of New York, New York, NY, USA
- Department of Neuroscience and Neurology, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA
| | - Jia Liu
- Neuroscience Initiative, Advanced Science Research Center, Graduate Center of The City University of New York, New York, NY, USA
| | - Stephanie J Cragg
- Centre for Integrative Neuroscience, Department of Physiology, Anatomy and Genetics, University of Oxford, Oxford, OX1 3PT, UK
- Oxford Parkinson's Disease Centre, University of Oxford, Oxford, OX1 3PT, UK
- Aligning Science Across Parkinson's (ASAP) Collaborative Research Network, Chevy Chase, MD, 20815, USA
| | - Dan P McCloskey
- CUNY Neuroscience Collaborative, The Graduate Center, City University of New York, 365 5Th Ave, New York, NY, 10016, USA
- Department of Psychology, College of Staten Island, City University of New York, 2800 Victory Boulevard, Staten Island, NY, 10314, USA
| | - Leora Yetnikoff
- CUNY Neuroscience Collaborative, The Graduate Center, City University of New York, 365 5Th Ave, New York, NY, 10016, USA.
- Department of Psychology, College of Staten Island, City University of New York, 2800 Victory Boulevard, Staten Island, NY, 10314, USA.
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38
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Pavlinov I, Tambe M, Abbott J, Nguyen HN, Xu M, Pradhan M, Farkhondeh A, Zheng W. In depth characterization of midbrain organoids derived from wild type iPSC lines. PLoS One 2023; 18:e0292926. [PMID: 37862312 PMCID: PMC10588847 DOI: 10.1371/journal.pone.0292926] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Accepted: 10/02/2023] [Indexed: 10/22/2023] Open
Abstract
The ability to model human neurological tissues in vitro has been a major hurdle to effective drug development for neurological disorders. iPSC-derived brain organoids have emerged as a compelling solution to this problem as they have the potential to relevantly model the protein expression pattern and physiology of specific brain regions. Although many protocols now exist for the production of brain organoids, few attempts have been made to do an in-depth kinetic evaluation of expression of mature regiospecific markers of brain organoids. To address this, we differentiated midbrain-specific brain organoids from iPSC-lines derived from three apparently healthy individuals using a matrix-free, bioreactor method. We monitored the expression of midbrain-specific neuronal markers from 7 to 90-days using immunofluorescence and immunohistology. The organoids were further characterized using electron microscopy and RNA-seq. In addition to serving as a potential benchmark for the future evaluation of other differentiation protocols, the markers observed in this study can be useful as control parameters to identify and evaluate the disease phenotypes in midbrain organoid derived from patient iPSC-lines with genetic neurological disorders.
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Affiliation(s)
- Ivan Pavlinov
- National Center for Advancing Translational Sciences, National Institutes of Health, Bethesda, MD, United States of America
| | - Mitali Tambe
- National Center for Advancing Translational Sciences, National Institutes of Health, Bethesda, MD, United States of America
| | - Joshua Abbott
- National Center for Advancing Translational Sciences, National Institutes of Health, Bethesda, MD, United States of America
| | - Ha Nam Nguyen
- Institute for Cell Engineering, Johns Hopkins University School of Medicine, Baltimore, MD, United States of America
- 3Dnamics, Inc., Baltimore, MD, United States of America
| | - Miao Xu
- National Center for Advancing Translational Sciences, National Institutes of Health, Bethesda, MD, United States of America
| | - Manisha Pradhan
- National Center for Advancing Translational Sciences, National Institutes of Health, Bethesda, MD, United States of America
| | - Atena Farkhondeh
- National Center for Advancing Translational Sciences, National Institutes of Health, Bethesda, MD, United States of America
| | - Wei Zheng
- National Center for Advancing Translational Sciences, National Institutes of Health, Bethesda, MD, United States of America
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39
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Yang ZC, Yin CD, Yeh FC, Xue BW, Song XY, Li G, Deng ZH, Sun SJ, Hou ZG, Xie J. A preliminary study on corticospinal tract morphology in incidental and symptomatic insular low-grade glioma: implications for post-surgical motor outcomes. Neuroimage Clin 2023; 40:103521. [PMID: 37857233 PMCID: PMC10598056 DOI: 10.1016/j.nicl.2023.103521] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 09/11/2023] [Accepted: 09/30/2023] [Indexed: 10/21/2023]
Abstract
OBJECTIVE Our study aimed to investigate the shape and diffusion properties of the corticospinal tract (CST) in patients with insular incidental and symptomatic low-grade gliomas (LGGs), especially those in the incidental group, and evaluate their association with post-surgical motor function. METHODS We performed automatic fiber tracking on 41 LGG patients, comparing macroscopic shape and microscopic diffusion properties of CST between ipsilateral and contralateral tracts in both incidental and symptomatic groups. A correlation analysis was conducted between properties of CST and post-operative motor strength grades. RESULTS In the incidental group, no significant differences in mean diffusion properties were found between bilateral CST. While decreased anisotropy of the CST around the superior limiting sulcus and increased axial diffusivity of the CST near the midbrain level were noted, there was no significant correlation between pre-operative diffusion metrics and post-operative motor strength. In comparison, we found significant correlations between the elongation of the affected CST in the preoperative scans and post-operative motor strength in short-term and long-term follow ups (p = 1.810 × 10-4 and p = 9.560 × 10-4, respectively). CONCLUSIONS We found a significant correlation between CST shape measures and post-operative motor function outcomes in patients with incidental insular LGGs. CST morphology shows promise as a potential prognostic factor for identifying functional deficits in this patient population.
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Affiliation(s)
- Zuo-Cheng Yang
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Chuan-Dong Yin
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Fang-Cheng Yeh
- Department of Neurological Surgery, University of Pittsburgh, Pittsburgh, PA, USA; Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA, USA
| | - Bo-Wen Xue
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Xin-Yu Song
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Gen Li
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Zheng-Hai Deng
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Sheng-Jun Sun
- Department of Neuroradiology, Beijing Neurosurgical Institute, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Zong-Gang Hou
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China.
| | - Jian Xie
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China.
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40
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Siletti K, Hodge R, Mossi Albiach A, Lee KW, Ding SL, Hu L, Lönnerberg P, Bakken T, Casper T, Clark M, Dee N, Gloe J, Hirschstein D, Shapovalova NV, Keene CD, Nyhus J, Tung H, Yanny AM, Arenas E, Lein ES, Linnarsson S. Transcriptomic diversity of cell types across the adult human brain. Science 2023; 382:eadd7046. [PMID: 37824663 DOI: 10.1126/science.add7046] [Citation(s) in RCA: 38] [Impact Index Per Article: 38.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Accepted: 09/07/2023] [Indexed: 10/14/2023]
Abstract
The human brain directs complex behaviors, ranging from fine motor skills to abstract intelligence, but the diversity of cell types that support these skills has not been fully described. In this work, we used single-nucleus RNA sequencing to systematically survey cells across the entire adult human brain. We sampled more than three million nuclei from approximately 100 dissections across the forebrain, midbrain, and hindbrain in three postmortem donors. Our analysis identified 461 clusters and 3313 subclusters organized largely according to developmental origins and revealing high diversity in midbrain and hindbrain neurons. Astrocytes and oligodendrocyte-lineage cells also exhibited regional diversity at multiple scales. The transcriptomic census of the entire human brain presented in this work provides a resource for understanding the molecular diversity of the human brain in health and disease.
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Affiliation(s)
| | - Rebecca Hodge
- Allen Institute for Brain Science, Seattle, WA 98109, USA
| | | | - Ka Wai Lee
- Karolinska Institute, 171 77 Stockholm, Sweden
| | - Song-Lin Ding
- Allen Institute for Brain Science, Seattle, WA 98109, USA
| | - Lijuan Hu
- Karolinska Institute, 171 77 Stockholm, Sweden
| | | | - Trygve Bakken
- Allen Institute for Brain Science, Seattle, WA 98109, USA
| | - Tamara Casper
- Allen Institute for Brain Science, Seattle, WA 98109, USA
| | - Michael Clark
- Allen Institute for Brain Science, Seattle, WA 98109, USA
| | - Nick Dee
- Allen Institute for Brain Science, Seattle, WA 98109, USA
| | - Jessica Gloe
- Allen Institute for Brain Science, Seattle, WA 98109, USA
| | | | | | - C Dirk Keene
- Department of Laboratory Medicine and Pathology, University of Washington, Seattle, WA 98195, USA
| | - Julie Nyhus
- Allen Institute for Brain Science, Seattle, WA 98109, USA
| | - Herman Tung
- Allen Institute for Brain Science, Seattle, WA 98109, USA
| | | | | | - Ed S Lein
- Allen Institute for Brain Science, Seattle, WA 98109, USA
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41
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Cobb-Lewis DE, Sansalone L, Khaliq ZM. Contributions of the Sodium Leak Channel NALCN to Pacemaking of Medial Ventral Tegmental Area and Substantia Nigra Dopaminergic Neurons. J Neurosci 2023; 43:6841-6853. [PMID: 37640554 PMCID: PMC10573758 DOI: 10.1523/jneurosci.0930-22.2023] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Revised: 08/04/2023] [Accepted: 08/10/2023] [Indexed: 08/31/2023] Open
Abstract
We tested the role of the sodium leak channel, NALCN, in pacemaking of dopaminergic neuron (DAN) subpopulations from adult male and female mice. In situ hybridization revealed NALCN RNA in all DANs, with lower abundance in medial ventral tegmental area (VTA) relative to substantia nigra pars compacta (SNc). Despite lower relative abundance of NALCN, we found that acute pharmacological blockade of NALCN in medial VTA DANs slowed pacemaking by 49.08%. We also examined the electrophysiological properties of projection-defined VTA DAN subpopulations identified by retrograde labeling. Inhibition of NALCN reduced pacemaking in DANs projecting to medial nucleus accumbens (NAc) and others projecting to lateral NAc by 70.74% and 31.98%, respectively, suggesting that NALCN is a primary driver of pacemaking in VTA DANs. In SNc DANs, potentiating NALCN by lowering extracellular calcium concentration speeded pacemaking in wildtype but not NALCN conditional knockout mice, demonstrating functional presence of NALCN. In contrast to VTA DANs, however, pacemaking in SNc DANs was unaffected by inhibition of NALCN. Instead, we found that inhibition of NALCN increased the gain of frequency-current plots at firing frequencies slower than spontaneous firing. Similarly, inhibition of the hyperpolarization-activated cyclic nucleotide-gated (HCN) conductance increased gain but had little effect on pacemaking. Interestingly, simultaneous inhibition of NALCN and HCN resulted in significant reduction in pacemaker rate. Thus, we found NALCN makes substantial contributions to driving pacemaking in VTA DAN subpopulations. In SNc DANs, NALCN is not critical for pacemaking but inhibition of NALCN makes cells more sensitive to hyperpolarizing stimuli.SIGNIFICANCE STATEMENT Pacemaking in midbrain dopaminergic neurons (DAN) relies on multiple subthreshold conductances, including a sodium leak. Whether the sodium leak channel, NALCN, contributes to pacemaking in DANs located in the VTA and the SNc has not yet been determined. Using electrophysiology and pharmacology, we show that NALCN plays a prominent role in driving pacemaking in projection-defined VTA DAN subpopulations. By contrast, pacemaking in SNc neurons does not rely on NALCN. Instead, the presence of NALCN regulates the excitability of SNc DANs by reducing the gain of the neuron's response to inhibitory stimuli. Together, these findings will inform future efforts to obtain DAN subpopulation-specific treatments for use in neuropsychiatric disorders.
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Affiliation(s)
- Dana E Cobb-Lewis
- Cellular Neurophysiology Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, Maryland 20892
- Institute for Neuroscience, George Washington University School of Medicine and Health Sciences, Washington, DC 20037
| | - Lorenzo Sansalone
- Cellular Neurophysiology Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, Maryland 20892
| | - Zayd M Khaliq
- Cellular Neurophysiology Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, Maryland 20892
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42
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Bisoyi P, Ratna D, Kumar G, Mallick BN, Goswami SK. In the Rat Midbrain, SG2NA and DJ-1 have Common Interactome, Including Mitochondrial Electron Transporters that are Comodulated Under Oxidative Stress. Cell Mol Neurobiol 2023; 43:3061-3080. [PMID: 37165139 DOI: 10.1007/s10571-023-01356-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Accepted: 04/26/2023] [Indexed: 05/12/2023]
Abstract
Scaffold proteins Striatin and SG2NA assemble kinases and phosphatases into the signalling complexes called STRIPAK. Dysfunctional STRIPAKs cause cancer, cerebral cavernous malformations, etc. DJ-1, a sensor for oxidative stress, has long been associated with the Parkinson's disease, cancer, and immune disorders. SG2NA interacts with DJ-1 and Akt providing neuroprotection under oxidative stress. To dissect the role of SG2NA and DJ-1 in neuronal pathobiology, rat midbrain extracts were immunoprecipitated with SG2NA and sixty-three interacting proteins were identified. BN-PAGE followed by the LC-MS/MS showed 1030 comigrating proteins as the potential constituents of the multimeric complexes formed by SG2NA. Forty-three proteins were common between those identified by co-immunoprecipitation and the BN-PAGE. Co-immunoprecipitation with DJ-1 identified 179 interacting partners, of which forty-one also interact with SG2NA. Among those forty-one proteins immunoprecipitated with both SG2NA and DJ-1, thirty-nine comigrated with SG2NA in the BN-PAGE, and thus are bonafide constituents of the supramolecular assemblies comprising both DJ-1 and SG2NA. Among those thirty-nine proteins, seven are involved in mitochondrial oxidative phosphorylation. In rotenone-treated rats having Parkinson's like symptoms, the levels of both SG2NA and DJ-1 increased in the mitochondria; and the association of SG2NA with the electron transport complexes enhanced. In the hemi-Parkinson's model, where the rats were injected with 6-OHDA into the midbrain, the occupancy of SG2NA and DJ-1 in the mitochondrial complexes also increased. Our study thus reveals a new family of potential STRIPAK assemblies involving both SG2NA and DJ-1, with key roles in protecting midbrain from the oxidative stress.
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Affiliation(s)
- Padmini Bisoyi
- School of Life Sciences, Jawaharlal Nehru University, New Mehrauli Road, New Delhi, 110067, India
| | - Deshdeepak Ratna
- School of Life Sciences, Jawaharlal Nehru University, New Mehrauli Road, New Delhi, 110067, India
| | - Gaurav Kumar
- Department of Life Sciences and Biotechnology, CSJM University, Kanpur, Uttar Pradesh, 208024, India
| | - Birendra Nath Mallick
- School of Life Sciences, Jawaharlal Nehru University, New Mehrauli Road, New Delhi, 110067, India
- Amity Institute of Neuropsychology & Neurosciences, Amity University, Noida, 201313, India
| | - Shyamal K Goswami
- School of Life Sciences, Jawaharlal Nehru University, New Mehrauli Road, New Delhi, 110067, India.
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43
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Patikas N, Ansari R, Metzakopian E. Single-cell transcriptomics identifies perturbed molecular pathways in midbrain organoids using α-synuclein triplication Parkinson's disease patient-derived iPSCs. Neurosci Res 2023; 195:13-28. [PMID: 37271312 DOI: 10.1016/j.neures.2023.06.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Revised: 05/26/2023] [Accepted: 06/01/2023] [Indexed: 06/06/2023]
Abstract
Three-dimensional (3D) brain organoids provide a platform to study brain development, cellular coordination, and disease using human tissue. Here, we generate midbrain dopaminergic (mDA) organoids from induced pluripotent stem cells (iPSC) from healthy and Parkinson's Disease (PD) donors and assess them as a human PD model using single-cell RNAseq. We characterize cell types in our organoid cultures and analyze our model's Dopamine (DA) neurons using cytotoxic and genetic stressors. Our study provides the first in-depth, single-cell analysis of SNCA triplication and shows evidence for molecular dysfunction in oxidative phosphorylation, translation, and ER protein-folding in DA neurons. We perform an in-silico identification of rotenone-sensitive DA neurons and characterization of corresponding transcriptomic profiles associated with synaptic signalling and cholesterol biosynthesis. Finally, we show a novel chimera organoid model from healthy and PD iPSCs allowing the study of DA neurons from different individuals within the same tissue.
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Affiliation(s)
- Nikolaos Patikas
- UK Dementia Research Institute, Department of Clinical Neurosciences, Cambridge Biomedical Campus, University of Cambridge, Cambridge CB2 0AH, UK.
| | - Rizwan Ansari
- UK Dementia Research Institute, Department of Clinical Neurosciences, Cambridge Biomedical Campus, University of Cambridge, Cambridge CB2 0AH, UK
| | - Emmanouil Metzakopian
- UK Dementia Research Institute, Department of Clinical Neurosciences, Cambridge Biomedical Campus, University of Cambridge, Cambridge CB2 0AH, UK.
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44
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Malhotra A. Letter to the Editor Re; "Treatment and outcomes of non-aneurysmal perimesencephalic subarachnoid hemorrhage: A 5 year retrospective study in a tertiary care centre". Clin Neurol Neurosurg 2023; 233:107937. [PMID: 37591039 DOI: 10.1016/j.clineuro.2023.107937] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2023] [Revised: 07/26/2023] [Accepted: 08/06/2023] [Indexed: 08/19/2023]
Affiliation(s)
- Ajay Malhotra
- Department of Radiology and Biomedical Imaging, Yale School of Medicine, Diagnostic Radiology, P.O. Box 208402, New Haven, CT 06520-8042, United States.
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45
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Nishimura K, Ásgrímsdóttir ES, Yang S, Arenas E. A protocol for the differentiation of human embryonic stem cells into midbrain dopaminergic neurons. STAR Protoc 2023; 4:102355. [PMID: 37310863 PMCID: PMC10511858 DOI: 10.1016/j.xpro.2023.102355] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2023] [Revised: 04/28/2023] [Accepted: 05/15/2023] [Indexed: 06/15/2023] Open
Abstract
Here, we present a protocol for the generation of functional midbrain dopaminergic (mDA) neurons from human embryonic stem cells (hESCs), which mimics the development of the human ventral midbrain. We describe steps for hESC proliferation, induction of mDA progenitors, freezing stocks of mDA progenitors as an intermediate starting point to reduce the time to make mDA neurons, and maturation of mDA neurons. The entire protocol is feeder-free and uses chemically defined materials. For complete details on the use and execution of this protocol, please refer to Nishimura et al. (2023).1.
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Affiliation(s)
- Kaneyasu Nishimura
- Department of Medical Biochemistry and Biophysics, Karolinska Institutet, 171 77 Stockholm, Sweden; Laboratory of Functional Brain Circuit Construction, Graduate School of Brain Science, Doshisha University, Kyotanabe 610-0394, Japan.
| | - Emilía Sif Ásgrímsdóttir
- Department of Medical Biochemistry and Biophysics, Karolinska Institutet, 171 77 Stockholm, Sweden
| | - Shanzheng Yang
- Department of Medical Biochemistry and Biophysics, Karolinska Institutet, 171 77 Stockholm, Sweden
| | - Ernest Arenas
- Department of Medical Biochemistry and Biophysics, Karolinska Institutet, 171 77 Stockholm, Sweden.
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46
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Chen M, Niclis JC, Denham M. Protocol for generating reproducible miniaturized controlled midbrain organoids. STAR Protoc 2023; 4:102451. [PMID: 37481727 PMCID: PMC10382973 DOI: 10.1016/j.xpro.2023.102451] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Revised: 05/07/2023] [Accepted: 06/20/2023] [Indexed: 07/25/2023] Open
Abstract
Here, we present a protocol for generating miniaturized controlled midbrain organoids (MiCOs) of reproducible size and cellular composition, without a necrotic center. We describe steps for maintaining and passaging human pluripotent stem cells, generating MiCOs using AggreWell™400, and maintaining them in an EB-Disk360on an orbital shaker, eliminating the need for Matrigel or a spinner flask and preventing organoid fusion. We then detail organoid collection for different endpoint analysis. This protocol is suitable for compound screening and disease modeling studies.
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Affiliation(s)
- Muwan Chen
- Danish Research Institute of Translational Neuroscience (DANDRITE), Nordic EMBL Partnership for Molecular Medicine, Aarhus University, 8000C Aarhus, Denmark; Department of Biomedicine, Aarhus University, 8000C Aarhus, Denmark.
| | | | - Mark Denham
- Danish Research Institute of Translational Neuroscience (DANDRITE), Nordic EMBL Partnership for Molecular Medicine, Aarhus University, 8000C Aarhus, Denmark; Department of Biomedicine, Aarhus University, 8000C Aarhus, Denmark.
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47
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Feng W, Liu S, Deng Q, Fu S, Yang Y, Dai X, Wang S, Wang Y, Liu Y, Lin X, Pan X, Hao S, Yuan Y, Gu Y, Zhang X, Li H, Liu L, Liu C, Fei JF, Wei X. A scATAC-seq atlas of chromatin accessibility in axolotl brain regions. Sci Data 2023; 10:627. [PMID: 37709774 PMCID: PMC10502032 DOI: 10.1038/s41597-023-02533-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2023] [Accepted: 09/01/2023] [Indexed: 09/16/2023] Open
Abstract
Axolotl (Ambystoma mexicanum) is an excellent model for investigating regeneration, the interaction between regenerative and developmental processes, comparative genomics, and evolution. The brain, which serves as the material basis of consciousness, learning, memory, and behavior, is the most complex and advanced organ in axolotl. The modulation of transcription factors is a crucial aspect in determining the function of diverse regions within the brain. There is, however, no comprehensive understanding of the gene regulatory network of axolotl brain regions. Here, we utilized single-cell ATAC sequencing to generate the chromatin accessibility landscapes of 81,199 cells from the olfactory bulb, telencephalon, diencephalon and mesencephalon, hypothalamus and pituitary, and the rhombencephalon. Based on these data, we identified key transcription factors specific to distinct cell types and compared cell type functions across brain regions. Our results provide a foundation for comprehensive analysis of gene regulatory programs, which are valuable for future studies of axolotl brain development, regeneration, and evolution, as well as on the mechanisms underlying cell-type diversity in vertebrate brains.
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Affiliation(s)
- Weimin Feng
- College of Life Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
- BGI-Hangzhou, Hangzhou, 310012, China
- BGI-Shenzhen, Shenzhen, 518103, China
| | - Shuai Liu
- BGI-Hangzhou, Hangzhou, 310012, China
- BGI-Shenzhen, Shenzhen, 518103, China
- BGI College & Henan Institute of Medical and Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, 450000, China
| | - Qiuting Deng
- College of Life Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
- BGI-Shenzhen, Shenzhen, 518103, China
| | - Sulei Fu
- Department of Pathology, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, Guangdong, 510080, China
- Key Laboratory of Brain, Cognition and Education Sciences, Ministry of Education; Institute for Brain Research and Rehabilitation, South China Normal University, Guangzhou, 510631, China
| | - Yunzhi Yang
- BGI-Hangzhou, Hangzhou, 310012, China
- BGI-Shenzhen, Shenzhen, 518103, China
- BGI College & Henan Institute of Medical and Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, 450000, China
| | - Xi Dai
- College of Life Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
- BGI-Hangzhou, Hangzhou, 310012, China
- BGI-Shenzhen, Shenzhen, 518103, China
| | - Shuai Wang
- College of Life Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
- BGI-Hangzhou, Hangzhou, 310012, China
- BGI-Shenzhen, Shenzhen, 518103, China
| | - Yijin Wang
- BGI-Hangzhou, Hangzhou, 310012, China
- BGI-Shenzhen, Shenzhen, 518103, China
- College of Life Sciences, Nankai University, Tianjin, 300071, China
| | - Yang Liu
- BGI-Hangzhou, Hangzhou, 310012, China
- BGI-Shenzhen, Shenzhen, 518103, China
| | - Xiumei Lin
- College of Life Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
- BGI-Hangzhou, Hangzhou, 310012, China
- BGI-Shenzhen, Shenzhen, 518103, China
| | - Xiangyu Pan
- Medical Research Institute, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, 510080, China
- Guangdong Cardiovsacular Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, 510080, China
| | - Shijie Hao
- College of Life Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
- BGI-Hangzhou, Hangzhou, 310012, China
- BGI-Shenzhen, Shenzhen, 518103, China
| | - Yue Yuan
- BGI-Hangzhou, Hangzhou, 310012, China
- BGI-Shenzhen, Shenzhen, 518103, China
| | - Ying Gu
- BGI-Shenzhen, Shenzhen, 518103, China
| | | | - Hanbo Li
- BGI-Shenzhen, Shenzhen, 518103, China
- BGI-Qingdao, Qingdao, 266555, China
- Lars Bolund Institute of Regenerative Medicine, Qingdao-Europe Advanced Institute for Life Sciences, BGI-Qingdao, Qingdao, 266555, China
| | - Longqi Liu
- BGI-Hangzhou, Hangzhou, 310012, China
- BGI-Shenzhen, Shenzhen, 518103, China
| | | | - Ji-Feng Fei
- Department of Pathology, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, Guangdong, 510080, China.
- School of Medicine, South China University of Technology, Guangzhou, Guangdong, 510006, China.
- School of Basic Medical Sciences, Southern Medical University, Guangzhou, Guangdong, 510515, China.
| | - Xiaoyu Wei
- BGI-Hangzhou, Hangzhou, 310012, China.
- BGI-Shenzhen, Shenzhen, 518103, China.
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48
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Wei J, Lambert TY, Valada A, Patel N, Walker K, Lenders J, Schmidt CJ, Iskhakova M, Alazizi A, Mair-Meijers H, Mash DC, Luca F, Pique-Regi R, Bannon MJ, Akbarian S. Single nucleus transcriptomics of ventral midbrain identifies glial activation associated with chronic opioid use disorder. Nat Commun 2023; 14:5610. [PMID: 37699936 PMCID: PMC10497570 DOI: 10.1038/s41467-023-41455-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Accepted: 09/05/2023] [Indexed: 09/14/2023] Open
Abstract
Dynamic interactions of neurons and glia in the ventral midbrain mediate reward and addiction behavior. We studied gene expression in 212,713 ventral midbrain single nuclei from 95 individuals with history of opioid misuse, and individuals without drug exposure. Chronic exposure to opioids was not associated with change in proportions of glial and neuronal subtypes, however glial transcriptomes were broadly altered, involving 9.5 - 6.2% of expressed genes within microglia, oligodendrocytes, and astrocytes. Genes associated with activation of the immune response including interferon, NFkB signaling, and cell motility pathways were upregulated, contrasting with down-regulated expression of synaptic signaling and plasticity genes in ventral midbrain non-dopaminergic neurons. Ventral midbrain transcriptomic reprogramming in the context of chronic opioid exposure included 325 genes that previous genome-wide studies had linked to risk of substance use traits in the broader population, thereby pointing to heritable risk architectures in the genomic organization of the brain's reward circuitry.
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Affiliation(s)
- Julong Wei
- Center for Molecular Medicine and Genetics, Wayne State University School of Medicine, Detroit, MI, 48201, USA
| | - Tova Y Lambert
- Department of Psychiatry, Department of Neuroscience and Department of Genetics and Genomic Sciences, Friedman Brain Institute Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA
| | - Aditi Valada
- Department of Psychiatry, Department of Neuroscience and Department of Genetics and Genomic Sciences, Friedman Brain Institute Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA
| | - Nikhil Patel
- Department of Pharmacology, Wayne State University School of Medicine, Detroit, MI, 48201, USA
| | - Kellie Walker
- Department of Pharmacology, Wayne State University School of Medicine, Detroit, MI, 48201, USA
| | - Jayna Lenders
- Department of Pharmacology, Wayne State University School of Medicine, Detroit, MI, 48201, USA
| | - Carl J Schmidt
- Department of Pathology, University of Michigan School of Medicine, Ann Arbor, MI, 48109, USA
| | - Marina Iskhakova
- Department of Psychiatry, Department of Neuroscience and Department of Genetics and Genomic Sciences, Friedman Brain Institute Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA
| | - Adnan Alazizi
- Center for Molecular Medicine and Genetics, Wayne State University School of Medicine, Detroit, MI, 48201, USA
| | - Henriette Mair-Meijers
- Center for Molecular Medicine and Genetics, Wayne State University School of Medicine, Detroit, MI, 48201, USA
| | - Deborah C Mash
- Department of Neurology, Miller School of Medicine, University of Miami, Miami, FL, 33136, USA
| | - Francesca Luca
- Center for Molecular Medicine and Genetics, Wayne State University School of Medicine, Detroit, MI, 48201, USA
- Department of Obstetrics and Gynecology, Wayne State University, Detroit, MI, 48201, USA
- Department of Biology, University of Tor Vergata, Rome, 00133, Italy
| | - Roger Pique-Regi
- Center for Molecular Medicine and Genetics, Wayne State University School of Medicine, Detroit, MI, 48201, USA
- Department of Obstetrics and Gynecology, Wayne State University, Detroit, MI, 48201, USA
| | - Michael J Bannon
- Department of Pharmacology, Wayne State University School of Medicine, Detroit, MI, 48201, USA
| | - Schahram Akbarian
- Department of Psychiatry, Department of Neuroscience and Department of Genetics and Genomic Sciences, Friedman Brain Institute Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA.
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49
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Gutiérrez-Ibáñez C, Wylie DR, Altshuler DL. From the eye to the wing: neural circuits for transforming optic flow into motor output in avian flight. J Comp Physiol A Neuroethol Sens Neural Behav Physiol 2023; 209:839-854. [PMID: 37542566 DOI: 10.1007/s00359-023-01663-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Revised: 07/21/2023] [Accepted: 07/25/2023] [Indexed: 08/07/2023]
Abstract
Avian flight is guided by optic flow-the movement across the retina of images of surfaces and edges in the environment due to self-motion. In all vertebrates, there is a short pathway for optic flow information to reach pre-motor areas: retinal-recipient regions in the midbrain encode optic flow, which is then sent to the cerebellum. One well-known role for optic flow pathways to the cerebellum is the control of stabilizing eye movements (the optokinetic response). However, the role of this pathway in controlling locomotion is less well understood. Electrophysiological and tract tracing studies are revealing the functional connectivity of a more elaborate circuit through the avian cerebellum, which integrates optic flow with other sensory signals. Here we review the research supporting this framework and identify the cerebellar output centres, the lateral (CbL) and medial (CbM) cerebellar nuclei, as two key nodes with potentially distinct roles in flight control. The CbM receives bilateral optic flow information and projects to sites in the brainstem that suggest a primary role for flight control over time, such as during forward flight. The CbL receives monocular optic flow and other types of visual information. This site provides feedback to sensory areas throughout the brain and has a strong projection the nucleus ruber, which is known to have a dominant role in forelimb muscle control. This arrangement suggests primary roles for the CbL in the control of wing morphing and for rapid maneuvers.
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Affiliation(s)
| | - Douglas R Wylie
- Department of Biological Sciences, University of Alberta, Edmonton, AB, T6G 2E9, Canada.
| | - Douglas L Altshuler
- Department of Zoology, University of British Columbia, Vancouver, BC, V6T 1Z4, Canada.
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50
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Michael M, Wolf BJ, Klinge-Strahl A, Jeschke M, Moser T, Dieter A. Devising a framework of optogenetic coding in the auditory pathway: Insights from auditory midbrain recordings. Brain Stimul 2023; 16:1486-1500. [PMID: 37778456 DOI: 10.1016/j.brs.2023.09.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Revised: 09/19/2023] [Accepted: 09/21/2023] [Indexed: 10/03/2023] Open
Abstract
Cochlear implants (CIs) restore activity in the deafened auditory system via electrical stimulation of the auditory nerve. As the spread of electric current in biological tissues is rather broad, the spectral information provided by electrical CIs is limited. Optogenetic stimulation of the auditory nerve has been suggested for artificial sound coding with improved spectral selectivity, as light can be conveniently confined in space. Yet, the foundations for optogenetic sound coding strategies remain to be established. Here, we parametrized stimulus-response-relationships of the auditory pathway in gerbils for optogenetic stimulation. Upon activation of the auditory pathway by waveguide-based optogenetic stimulation of the spiral ganglion, we recorded neuronal activity of the auditory midbrain, in which neural representations of spectral, temporal, and intensity information can be found. Screening a wide range of optical stimuli and taking the properties of optical CI emitters into account, we aimed to optimize stimulus paradigms for potent and energy-efficient activation of the auditory pathway. We report that efficient optogenetic coding builds on neural integration of millisecond stimuli built from microsecond light pulses, which optimally accommodate power-efficient laser diode operation. Moreover, we performed an activity-level-dependent comparison of optogenetic and acoustic stimulation in order to estimate the dynamic range and the maximal stimulation intensity amenable to single channel optogenetic sound encoding, and indicate that it complies well with speech comprehension in a typical conversation (65 dB). Our results provide a first framework for the development of coding strategies for future optogenetic hearing restoration.
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Affiliation(s)
- Maria Michael
- Institute for Auditory Neuroscience and InnerEarLab, University Medical Center Göttingen, 37075, Göttingen, Germany
| | - Bettina Julia Wolf
- Institute for Auditory Neuroscience and InnerEarLab, University Medical Center Göttingen, 37075, Göttingen, Germany; Auditory Neuroscience and Optogenetics Laboratory, German Primate Center, 37077, Göttingen, Germany; Cluster of Excellence "Multiscale Bioimaging: from Molecular Machines to Networks of Excitable Cells" (MBExC), University of Göttingen, 37075, Göttingen, Germany
| | - Astrid Klinge-Strahl
- Institute for Auditory Neuroscience and InnerEarLab, University Medical Center Göttingen, 37075, Göttingen, Germany; Department of Otolaryngology, University Medical Center Göttingen, 37075, Göttingen, Germany
| | - Marcus Jeschke
- Institute for Auditory Neuroscience and InnerEarLab, University Medical Center Göttingen, 37075, Göttingen, Germany; Auditory Neuroscience and Optogenetics Laboratory, German Primate Center, 37077, Göttingen, Germany; Cognitive Hearing in Primates (CHiP) Group, German Primate Center, 37077, Göttingen, Germany
| | - Tobias Moser
- Institute for Auditory Neuroscience and InnerEarLab, University Medical Center Göttingen, 37075, Göttingen, Germany; Auditory Neuroscience and Optogenetics Laboratory, German Primate Center, 37077, Göttingen, Germany; Cluster of Excellence "Multiscale Bioimaging: from Molecular Machines to Networks of Excitable Cells" (MBExC), University of Göttingen, 37075, Göttingen, Germany; Auditory Neuroscience and Synaptic Nanophysiology Group, Max Planck Institute for Multidisciplinary Science, Göttingen, Germany.
| | - Alexander Dieter
- Institute for Auditory Neuroscience and InnerEarLab, University Medical Center Göttingen, 37075, Göttingen, Germany; Göttingen Graduate Center for Neurosciences, Biophysic, and Molecular Biosciences, 37077, Göttingen, Germany; Department of Neurophysiology, MCTN, Medical Faculty Mannheim, Heidelberg University, 68167, Mannheim, Germany.
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