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Rubenstein JL, Nord AS, Ekker M. DLX genes and proteins in mammalian forebrain development. Development 2024; 151:dev202684. [PMID: 38819455 PMCID: PMC11190439 DOI: 10.1242/dev.202684] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/01/2024]
Abstract
The vertebrate Dlx gene family encode homeobox transcription factors that are related to the Drosophila Distal-less (Dll) gene and are crucial for development. Over the last ∼35 years detailed information has accrued about the redundant and unique expression and function of the six mammalian Dlx family genes. DLX proteins interact with general transcriptional regulators, and co-bind with other transcription factors to enhancer elements with highly specific activity in the developing forebrain. Integration of the genetic and biochemical data has yielded a foundation for a gene regulatory network governing the differentiation of forebrain GABAergic neurons. In this Primer, we describe the discovery of vertebrate Dlx genes and their crucial roles in embryonic development. We largely focus on the role of Dlx family genes in mammalian forebrain development revealed through studies in mice. Finally, we highlight questions that remain unanswered regarding vertebrate Dlx genes despite over 30 years of research.
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Affiliation(s)
- John L. Rubenstein
- UCSF Department of Psychiatry and Behavioral Sciences, Department of UCSF Weill Institute for Neurosciences, Nina Ireland Laboratory of Developmental Neurobiology, University of California San Francisco, San Francisco, CA 94143, USA
| | - Alex S. Nord
- Department of Neurobiology, Physiology, and Behavior and Department of Psychiatry and 20 Behavioral Sciences, Center for Neuroscience, University of California Davis, Davis, CA 95618, USA
| | - Marc Ekker
- Department of Biology, University of Ottawa, 30 Marie Curie, Ottawa, ON K1N 6N5, Canada
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2
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The P-body protein 4E-T represses translation to regulate the balance between cell genesis and establishment of the postnatal NSC pool. Cell Rep 2023; 42:112242. [PMID: 36924490 DOI: 10.1016/j.celrep.2023.112242] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Revised: 01/19/2023] [Accepted: 02/23/2023] [Indexed: 03/17/2023] Open
Abstract
Here, we ask how developing precursors maintain the balance between cell genesis for tissue growth and establishment of adult stem cell pools, focusing on postnatal forebrain neural precursor cells (NPCs). We show that these NPCs are transcriptionally primed to differentiate and that the primed mRNAs are associated with the translational repressor 4E-T. 4E-T also broadly associates with other NPC mRNAs encoding transcriptional regulators, and these are preferentially depleted from ribosomes, consistent with repression. By contrast, a second translational regulator, Cpeb4, associates with diverse target mRNAs that are largely ribosome associated. The 4E-T-dependent mRNA association is functionally important because 4E-T knockdown or conditional knockout derepresses proneurogenic mRNA translation and perturbs maintenance versus differentiation of early postnatal NPCs in culture and in vivo. Thus, early postnatal NPCs are primed to differentiate, and 4E-T regulates the balance between cell genesis and stem cell expansion by sequestering and repressing mRNAs encoding transcriptional regulators.
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3
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Coltogirone RA, Sherfinski EI, Dobler ZA, Peterson SN, Andlinger AR, Fadel LC, Patrick RL, Bergeron SA. Gsx2, but not Gsx1, is necessary for early forebrain patterning and long-term survival in zebrafish. Dev Dyn 2023; 252:377-399. [PMID: 36184733 PMCID: PMC9992111 DOI: 10.1002/dvdy.542] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Revised: 07/23/2022] [Accepted: 08/10/2022] [Indexed: 11/11/2022] Open
Abstract
BACKGROUND Homeobox transcription factor encoding genes, genomic screen homeobox 1 and 2 (gsx1 and gsx2), are expressed during neurodevelopment in multiple vertebrates. However, we have limited knowledge of the dynamic expression of these genes through developmental time and the gene networks that they regulate in zebrafish. RESULTS We confirmed that gsx1 is expressed initially in the hindbrain and diencephalon and later in the optic tectum, pretectum, and cerebellar plate. gsx2 is expressed in the early telencephalon and later in the pallium and olfactory bulb. gsx1 and gsx2 are co-expressed in the hypothalamus, preoptic area, and hindbrain, however, rarely co-localize in the same cells. gsx1 and gsx2 mutant zebrafish were made with TALENs. gsx1 mutants exhibit stunted growth, however, they survive to adulthood and are fertile. gsx2 mutants experience swim bladder inflation failure that prevents survival. We also observed significantly reduced expression of multiple forebrain patterning distal-less homeobox genes in mutants, and expression of foxp2 was not significantly affected. CONCLUSIONS This work provides novel tools with which other target genes and functions of Gsx1 and Gsx2 can be characterized across the central nervous system to better understand the unique and overlapping roles of these highly conserved transcription factors.
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Affiliation(s)
| | - Emma I. Sherfinski
- Department of Biology, West Virginia University, Morgantown, West, Virginia, USA
| | - Zoë A. Dobler
- Department of Biology, West Virginia University, Morgantown, West, Virginia, USA
| | - Sarah N. Peterson
- Department of Biology, West Virginia University, Morgantown, West, Virginia, USA
| | | | - Lindsay C. Fadel
- Department of Biology, West Virginia University, Morgantown, West, Virginia, USA
| | - Regina L. Patrick
- Department of Biology, West Virginia University, Morgantown, West, Virginia, USA
| | - Sadie A. Bergeron
- Department of Biology, West Virginia University, Morgantown, West, Virginia, USA
- Department of Neuroscience, West Virginia University, Morgantown, West, Virginia, USA
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4
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Mueller-Buehl C, Wegrzyn D, Bauch J, Faissner A. Regulation of the E/I-balance by the neural matrisome. Front Mol Neurosci 2023; 16:1102334. [PMID: 37143468 PMCID: PMC10151766 DOI: 10.3389/fnmol.2023.1102334] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Accepted: 03/27/2023] [Indexed: 05/06/2023] Open
Abstract
In the mammalian cortex a proper excitatory/inhibitory (E/I) balance is fundamental for cognitive functions. Especially γ-aminobutyric acid (GABA)-releasing interneurons regulate the activity of excitatory projection neurons which form the second main class of neurons in the cortex. During development, the maturation of fast-spiking parvalbumin-expressing interneurons goes along with the formation of net-like structures covering their soma and proximal dendrites. These so-called perineuronal nets (PNNs) represent a specialized form of the extracellular matrix (ECM, also designated as matrisome) that stabilize structural synapses but prevent the formation of new connections. Consequently, PNNs are highly involved in the regulation of the synaptic balance. Previous studies revealed that the formation of perineuronal nets is accompanied by an establishment of mature neuronal circuits and by a closure of critical windows of synaptic plasticity. Furthermore, it has been shown that PNNs differentially impinge the integrity of excitatory and inhibitory synapses. In various neurological and neuropsychiatric disorders alterations of PNNs were described and aroused more attention in the last years. The following review gives an update about the role of PNNs for the maturation of parvalbumin-expressing interneurons and summarizes recent findings about the impact of PNNs in different neurological and neuropsychiatric disorders like schizophrenia or epilepsy. A targeted manipulation of PNNs might provide an interesting new possibility to indirectly modulate the synaptic balance and the E/I ratio in pathological conditions.
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5
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Zhang Y, Xie Y, Lu W, Xu S, Wang X, Zhou W, Zhang Y, Ding X, Zhao S. Identification of resident progenitors labeled with Top2a responsible for proximal tubular regeneration in ischemia reperfusion-induced acute kidney injury. Cell Signal 2023; 101:110506. [PMID: 36309330 DOI: 10.1016/j.cellsig.2022.110506] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2022] [Revised: 10/19/2022] [Accepted: 10/21/2022] [Indexed: 11/06/2022]
Abstract
BACKGROUND Acute kidney injury is a common fatal disease with complex etiology and limited treatment methods. Proximal tubules (PTs) are the most vulnerable segment. Not only in injured kidneys but also in normal kidneys, shedding of PTs often happens. However, the source cells and mechanism of their regeneration remain unclear. METHODS ScRNA and snRNA sequencing data of acute injured or normal kidney were downloaded from GEO database to identify the candidate biomarker of progenitor of proximal tubules. SLICE algorithm and CytoTRACE analyses were employed to evaluate the stemness of progenitors. Then the repairing trajectory was constructed through pseudotime analyses. SCENIC algorithm was used to detect cell-type-specific regulon. With spatial transcriptome data, the location of progenitors was simulated. Neonatal/ adult/ aged mice and preconditioning AKI mice model and deconvolution of 2 RNA-seq data were employed for validation. RESULTS Through cluster identification, PT cluster expressed Top2a specifically was identified to increase significantly during AKI. With relatively strong stemness, the Top2a-labeled PT cluster tended to be the origin of the repairing trajectory. Moreover, the cluster was regulated by Pbx3-based regulon and possessed great segmental heterogeneity. Changes of Top2a between neonatal and aged mice and among AKI models validated the progenitor role of Top2a-labeled cluster. CONCLUSIONS Our study provided transcriptomic evidence that resident proximal tubular progenitors labeled with Top2a participated in regeneration. Considering the segmental heterogeneity, we find that there is a group of reserve progenitor cells in each tubular segment. When AKI occurs, the reserve progenitors of each tubular segment proliferate and replenish first, and PT-progenitors, a cluster with no obvious PT markers replenish each subpopulation of the reserve cells.
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Affiliation(s)
- Yang Zhang
- Department of Nephrology, Zhongshan Hospital, Fudan University
| | - Yeqing Xie
- Department of Nephrology, Zhongshan Hospital, Fudan University; Shanghai Medical Center of Kidney Disease; Kidney and Dialysis Institute of Shanghai; Kidney and Blood Purification Key Laboratory of Shanghai
| | - Wei Lu
- Department of Nephrology, Zhongshan Hospital, Fudan University
| | - Sujuan Xu
- Department of Nephrology, Zhongshan Hospital, Fudan University
| | - Xiaoyan Wang
- Department of Nephrology, Zhongshan Hospital, Fudan University
| | - Weiran Zhou
- Department of Nephrology, Zhongshan Hospital, Fudan University
| | - Yingjia Zhang
- Department of Nephrology, Zhongshan Hospital, Fudan University
| | - Xiaoqiang Ding
- Department of Nephrology, Zhongshan Hospital, Fudan University; Shanghai Medical Center of Kidney Disease; Kidney and Dialysis Institute of Shanghai; Kidney and Blood Purification Key Laboratory of Shanghai.
| | - Shuan Zhao
- Department of Nephrology, Zhongshan Hospital, Fudan University; Shanghai Medical Center of Kidney Disease; Kidney and Dialysis Institute of Shanghai; Kidney and Blood Purification Key Laboratory of Shanghai.
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Manuel M, Tan KB, Kozic Z, Molinek M, Marcos TS, Razak MFA, Dobolyi D, Dobie R, Henderson BEP, Henderson NC, Chan WK, Daw MI, Mason JO, Price DJ. Pax6 limits the competence of developing cerebral cortical cells to respond to inductive intercellular signals. PLoS Biol 2022; 20:e3001563. [PMID: 36067211 PMCID: PMC9481180 DOI: 10.1371/journal.pbio.3001563] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2022] [Revised: 09/16/2022] [Accepted: 07/08/2022] [Indexed: 12/13/2022] Open
Abstract
The development of stable specialized cell types in multicellular organisms relies on mechanisms controlling inductive intercellular signals and the competence of cells to respond to such signals. In developing cerebral cortex, progenitors generate only glutamatergic excitatory neurons despite being exposed to signals with the potential to initiate the production of other neuronal types, suggesting that their competence is limited. Here, we tested the hypothesis that this limitation is due to their expression of transcription factor Pax6. We used bulk and single-cell RNAseq to show that conditional cortex-specific Pax6 deletion from the onset of cortical neurogenesis allowed some progenitors to generate abnormal lineages resembling those normally found outside the cortex. Analysis of selected gene expression showed that the changes occurred in specific spatiotemporal patterns. We then compared the responses of control and Pax6-deleted cortical cells to in vivo and in vitro manipulations of extracellular signals. We found that Pax6 loss increased cortical progenitors’ competence to generate inappropriate lineages in response to extracellular factors normally present in developing cortex, including the morphogens Shh and Bmp4. Regional variation in the levels of these factors could explain spatiotemporal patterns of fate change following Pax6 deletion in vivo. We propose that Pax6’s main role in developing cortical cells is to minimize the risk of their development being derailed by the potential side effects of morphogens engaged contemporaneously in other essential functions. The development of stable specialized cell types in multicellular organisms relies on mechanisms controlling inductive intercellular signals and the competence of cells to respond. This study shows that cortical development is stabilized by the protective actions of the transcription factor Pax6, which adjusts the ability of cortical cells to respond to potentially destabilizing signals present in their local environment.
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Affiliation(s)
- Martine Manuel
- Simons Initiative for the Developing Brain, Patrick Wild Centre, University of Edinburgh, Edinburgh, United Kingdom
| | - Kai Boon Tan
- Simons Initiative for the Developing Brain, Patrick Wild Centre, University of Edinburgh, Edinburgh, United Kingdom
| | - Zrinko Kozic
- Simons Initiative for the Developing Brain, Patrick Wild Centre, University of Edinburgh, Edinburgh, United Kingdom
| | - Michael Molinek
- Simons Initiative for the Developing Brain, Patrick Wild Centre, University of Edinburgh, Edinburgh, United Kingdom
| | - Tiago Sena Marcos
- Simons Initiative for the Developing Brain, Patrick Wild Centre, University of Edinburgh, Edinburgh, United Kingdom
| | - Maizatul Fazilah Abd Razak
- Simons Initiative for the Developing Brain, Patrick Wild Centre, University of Edinburgh, Edinburgh, United Kingdom
| | - Dániel Dobolyi
- Simons Initiative for the Developing Brain, Patrick Wild Centre, University of Edinburgh, Edinburgh, United Kingdom
| | - Ross Dobie
- Centre for Inflammation Research, University of Edinburgh, Queen’s Medical Research Institute, Edinburgh, United Kingdom
| | - Beth E. P. Henderson
- Centre for Inflammation Research, University of Edinburgh, Queen’s Medical Research Institute, Edinburgh, United Kingdom
| | - Neil C. Henderson
- Centre for Inflammation Research, University of Edinburgh, Queen’s Medical Research Institute, Edinburgh, United Kingdom
| | - Wai Kit Chan
- Simons Initiative for the Developing Brain, Patrick Wild Centre, University of Edinburgh, Edinburgh, United Kingdom
| | - Michael I. Daw
- Simons Initiative for the Developing Brain, Patrick Wild Centre, University of Edinburgh, Edinburgh, United Kingdom
- Zhejiang University-University of Edinburgh Institute, Zhejiang University, Haining, Zhejiang, People’s Republic of China
| | - John O. Mason
- Simons Initiative for the Developing Brain, Patrick Wild Centre, University of Edinburgh, Edinburgh, United Kingdom
| | - David J. Price
- Simons Initiative for the Developing Brain, Patrick Wild Centre, University of Edinburgh, Edinburgh, United Kingdom
- * E-mail:
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Du H, Wang Z, Guo R, Yang L, Liu G, Zhang Z, Xu Z, Tian Y, Yang Z, Li X, Chen B. Transcription factors Bcl11a and Bcl11b are required for the production and differentiation of cortical projection neurons. Cereb Cortex 2022; 32:3611-3632. [PMID: 34963132 PMCID: PMC9433425 DOI: 10.1093/cercor/bhab437] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Revised: 11/02/2021] [Indexed: 12/31/2022] Open
Abstract
The generation and differentiation of cortical projection neurons are extensively regulated by interactive programs of transcriptional factors. Here, we report the cooperative functions of transcription factors Bcl11a and Bcl11b in regulating the development of cortical projection neurons. Among the cells derived from the cortical neural stem cells, Bcl11a is expressed in the progenitors and the projection neurons, while Bcl11b expression is restricted to the projection neurons. Using conditional knockout mice, we show that deficiency of Bcl11a leads to reduced proliferation and precocious differentiation of cortical progenitor cells, which is exacerbated when Bcl11b is simultaneously deleted. Besides defective neuronal production, the differentiation of cortical projection neurons is blocked in the absence of both Bcl11a and Bcl11b: Expression of both pan-cortical and subtype-specific genes is reduced or absent; axonal projections to the thalamus, hindbrain, spinal cord, and contralateral cortical hemisphere are reduced or absent. Furthermore, neurogenesis-to-gliogenesis switch is accelerated in the Bcl11a-CKO and Bcl11a/b-DCKO mice. Bcl11a likely regulates neurogenesis through repressing the Nr2f1 expression. These results demonstrate that Bcl11a and Bcl11b jointly play critical roles in the generation and differentiation of cortical projection neurons and in controlling the timing of neurogenesis-to-gliogenesis switch.
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Affiliation(s)
- Heng Du
- State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institute of Pediatrics, Children’s Hospital of Fudan University, Institutes of Brain Science, Fudan University, Shanghai 200032, China
| | - Ziwu Wang
- State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institute of Pediatrics, Children’s Hospital of Fudan University, Institutes of Brain Science, Fudan University, Shanghai 200032, China
| | - Rongliang Guo
- State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institute of Pediatrics, Children’s Hospital of Fudan University, Institutes of Brain Science, Fudan University, Shanghai 200032, China
| | - Lin Yang
- State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institute of Pediatrics, Children’s Hospital of Fudan University, Institutes of Brain Science, Fudan University, Shanghai 200032, China
| | - Guoping Liu
- State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institute of Pediatrics, Children’s Hospital of Fudan University, Institutes of Brain Science, Fudan University, Shanghai 200032, China
| | - Zhuangzhi Zhang
- State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institute of Pediatrics, Children’s Hospital of Fudan University, Institutes of Brain Science, Fudan University, Shanghai 200032, China
| | - Zhejun Xu
- State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institute of Pediatrics, Children’s Hospital of Fudan University, Institutes of Brain Science, Fudan University, Shanghai 200032, China
| | - Yu Tian
- State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institute of Pediatrics, Children’s Hospital of Fudan University, Institutes of Brain Science, Fudan University, Shanghai 200032, China
| | - Zhengang Yang
- State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institute of Pediatrics, Children’s Hospital of Fudan University, Institutes of Brain Science, Fudan University, Shanghai 200032, China
| | - Xiaosu Li
- State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institute of Pediatrics, Children’s Hospital of Fudan University, Institutes of Brain Science, Fudan University, Shanghai 200032, China
| | - Bin Chen
- Department of Molecular, Cell and Developmental Biology, University of California, Santa Cruz, CA 95064, USA
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8
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Sun J, Ha N, Liu Z, Bian Q, Wang X. A Neural Crest-specific Overexpression Mouse Model Reveals the Transcriptional Regulatory Effects of Dlx2 During Maxillary Process Development. Front Physiol 2022; 13:855959. [PMID: 35514355 PMCID: PMC9070692 DOI: 10.3389/fphys.2022.855959] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2022] [Accepted: 03/14/2022] [Indexed: 11/13/2022] Open
Abstract
Craniofacial morphogenesis is a complex process that requires precise regulation of cell proliferation, migration, and differentiation. Perturbations of this process cause a series of craniofacial deformities. Dlx2 is a critical transcription factor that regulates the development of the first branchial arch. However, the transcriptional regulatory functions of Dlx2 during craniofacial development have been poorly understood due to the lack of animal models in which the Dlx2 level can be precisely modulated. In this study, we constructed a Rosa26 site-directed Dlx2 gene knock-in mouse model Rosa26 CAG-LSL-Dlx2-3xFlag for conditionally overexpressing Dlx2. By breeding with wnt1 cre mice, we obtained wnt1 cre ; Rosa26 Dlx2/- mice, in which Dlx2 is overexpressed in neural crest lineage at approximately three times the endogenous level. The wnt1 cre ; Rosa26 Dlx2/- mice exhibited consistent phenotypes that include cleft palate across generations and individual animals. Using this model, we demonstrated that Dlx2 caused cleft palate by affecting maxillary growth and uplift in the early-stage development of maxillary prominences. By performing bulk RNA-sequencing, we demonstrated that Dlx2 overexpression induced significant changes in many genes associated with critical developmental pathways. In summary, our novel mouse model provides a reliable and consistent system for investigating Dlx2 functions during development and for elucidating the gene regulatory networks underlying craniofacial development.
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Affiliation(s)
- Jian Sun
- Department of Oral and Cranio-Maxillofacial Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.,National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology, Shanghai Research Institute of Stomatology, Shanghai, China
| | - NaYoung Ha
- Department of Oral and Cranio-Maxillofacial Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.,National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology, Shanghai Research Institute of Stomatology, Shanghai, China
| | - Zhixu Liu
- Department of Oral and Cranio-Maxillofacial Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.,National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology, Shanghai Research Institute of Stomatology, Shanghai, China
| | - Qian Bian
- Department of Oral and Cranio-Maxillofacial Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.,Shanghai Institute of Precision Medicine, Shanghai, China
| | - Xudong Wang
- Department of Oral and Cranio-Maxillofacial Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.,National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology, Shanghai Research Institute of Stomatology, Shanghai, China
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9
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Tufo C, Poopalasundaram S, Dorrego-Rivas A, Ford MC, Graham A, Grubb MS. Development of the mammalian main olfactory bulb. Development 2022; 149:274348. [PMID: 35147186 PMCID: PMC8918810 DOI: 10.1242/dev.200210] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
The mammalian main olfactory bulb is a crucial processing centre for the sense of smell. The olfactory bulb forms early during development and is functional from birth. However, the olfactory system continues to mature and change throughout life as a target of constitutive adult neurogenesis. Our Review synthesises current knowledge of prenatal, postnatal and adult olfactory bulb development, focusing on the maturation, morphology, functions and interactions of its diverse constituent glutamatergic and GABAergic cell types. We highlight not only the great advances in the understanding of olfactory bulb development made in recent years, but also the gaps in our present knowledge that most urgently require addressing. Summary: This Review describes the morphological and functional maturation of cells in the mammalian main olfactory bulb, from embryonic development to adult neurogenesis.
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Affiliation(s)
- Candida Tufo
- Centre for Developmental Neurobiology, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London SE1 1UL, UK
| | - Subathra Poopalasundaram
- Centre for Developmental Neurobiology, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London SE1 1UL, UK
| | - Ana Dorrego-Rivas
- Centre for Developmental Neurobiology, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London SE1 1UL, UK
| | - Marc C Ford
- Centre for Developmental Neurobiology, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London SE1 1UL, UK
| | - Anthony Graham
- Centre for Developmental Neurobiology, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London SE1 1UL, UK
| | - Matthew S Grubb
- Centre for Developmental Neurobiology, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London SE1 1UL, UK
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10
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Identifying gene expression profiles associated with neurogenesis and inflammation in the human subependymal zone from development through aging. Sci Rep 2022; 12:40. [PMID: 34997023 PMCID: PMC8742079 DOI: 10.1038/s41598-021-03976-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Accepted: 12/02/2021] [Indexed: 12/11/2022] Open
Abstract
The generation of new neurons within the mammalian forebrain continues throughout life within two main neurogenic niches, the subgranular zone (SGZ) of the hippocampal dentate gyrus, and the subependymal zone (SEZ) lining the lateral ventricles. Though the SEZ is the largest neurogenic niche in the adult human forebrain, our understanding of the mechanisms regulating neurogenesis from development through aging within this region remains limited. This is especially pertinent given that neurogenesis declines dramatically over the postnatal lifespan. Here, we performed transcriptomic profiling on the SEZ from human post-mortem tissue from eight different life-stages ranging from neonates (average age ~ 2 months old) to aged adults (average age ~ 86 years old). We identified transcripts with concomitant profiles across these decades of life and focused on three of the most distinct profiles, namely (1) genes whose expression declined sharply after birth, (2) genes whose expression increased steadily with age, and (3) genes whose expression increased sharply in old age in the SEZ. Critically, these profiles identified neuroinflammation as becoming more prevalent with advancing age within the SEZ and occurring with time courses, one gradual (starting in mid-life) and one sharper (starting in old age).
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11
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Individual human cortical progenitors can produce excitatory and inhibitory neurons. Nature 2022; 601:397-403. [PMID: 34912114 PMCID: PMC8994470 DOI: 10.1038/s41586-021-04230-7] [Citation(s) in RCA: 62] [Impact Index Per Article: 31.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Accepted: 11/10/2021] [Indexed: 01/19/2023]
Abstract
The cerebral cortex is a cellularly complex structure comprising a rich diversity of neuronal and glial cell types. Cortical neurons can be broadly categorized into two classes-excitatory neurons that use the neurotransmitter glutamate, and inhibitory interneurons that use γ-aminobutyric acid (GABA). Previous developmental studies in rodents have led to a prevailing model in which excitatory neurons are born from progenitors located in the cortex, whereas cortical interneurons are born from a separate population of progenitors located outside the developing cortex in the ganglionic eminences1-5. However, the developmental potential of human cortical progenitors has not been thoroughly explored. Here we show that, in addition to excitatory neurons and glia, human cortical progenitors are also capable of producing GABAergic neurons with the transcriptional characteristics and morphologies of cortical interneurons. By developing a cellular barcoding tool called 'single-cell-RNA-sequencing-compatible tracer for identifying clonal relationships' (STICR), we were able to carry out clonal lineage tracing of 1,912 primary human cortical progenitors from six specimens, and to capture both the transcriptional identities and the clonal relationships of their progeny. A subpopulation of cortically born GABAergic neurons was transcriptionally similar to cortical interneurons born from the caudal ganglionic eminence, and these cells were frequently related to excitatory neurons and glia. Our results show that individual human cortical progenitors can generate both excitatory neurons and cortical interneurons, providing a new framework for understanding the origins of neuronal diversity in the human cortex.
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12
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Yang L, Li Z, Liu G, Li X, Yang Z. Developmental Origins of Human Cortical Oligodendrocytes and Astrocytes. Neurosci Bull 2021; 38:47-68. [PMID: 34374948 PMCID: PMC8783027 DOI: 10.1007/s12264-021-00759-9] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2021] [Accepted: 07/27/2021] [Indexed: 12/30/2022] Open
Abstract
Human cortical radial glial cells are primary neural stem cells that give rise to cortical glutaminergic projection pyramidal neurons, glial cells (oligodendrocytes and astrocytes) and olfactory bulb GABAergic interneurons. One of prominent features of the human cortex is enriched with glial cells, but there are major gaps in understanding how these glial cells are generated. Herein, by integrating analysis of published human cortical single-cell RNA-Seq datasets with our immunohistochemistical analyses, we show that around gestational week 18, EGFR-expressing human cortical truncated radial glial cells (tRGs) give rise to basal multipotent intermediate progenitors (bMIPCs) that express EGFR, ASCL1, OLIG2 and OLIG1. These bMIPCs undergo several rounds of mitosis and generate cortical oligodendrocytes, astrocytes and olfactory bulb interneurons. We also characterized molecular features of the cortical tRG. Integration of our findings suggests a general picture of the lineage progression of cortical radial glial cells, a fundamental process of the developing human cerebral cortex.
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Affiliation(s)
- Lin Yang
- State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institutes of Brain Science, Institute for Translational Brain Research, and Department of Neurology, Zhongshan Hospital, Fudan University, Shanghai, 200032, China
| | - Zhenmeiyu Li
- State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institutes of Brain Science, Institute for Translational Brain Research, and Department of Neurology, Zhongshan Hospital, Fudan University, Shanghai, 200032, China
| | - Guoping Liu
- State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institutes of Brain Science, Institute for Translational Brain Research, and Department of Neurology, Zhongshan Hospital, Fudan University, Shanghai, 200032, China
| | - Xiaosu Li
- State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institutes of Brain Science, Institute for Translational Brain Research, and Department of Neurology, Zhongshan Hospital, Fudan University, Shanghai, 200032, China
| | - Zhengang Yang
- State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institutes of Brain Science, Institute for Translational Brain Research, and Department of Neurology, Zhongshan Hospital, Fudan University, Shanghai, 200032, China.
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13
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Song X, Chen H, Shang Z, Du H, Li Z, Wen Y, Liu G, Qi D, You Y, Yang Z, Zhang Z, Xu Z. Homeobox Gene Six3 is Required for the Differentiation of D2-Type Medium Spiny Neurons. Neurosci Bull 2021; 37:985-998. [PMID: 34014554 PMCID: PMC8275777 DOI: 10.1007/s12264-021-00698-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Accepted: 01/09/2021] [Indexed: 12/31/2022] Open
Abstract
Medium spiny neurons (MSNs) in the striatum, which can be divided into D1 and D2 MSNs, originate from the lateral ganglionic eminence (LGE). Previously, we reported that Six3 is a downstream target of Sp8/Sp9 in the transcriptional regulatory cascade of D2 MSN development and that conditionally knocking out Six3 leads to a severe loss of D2 MSNs. Here, we showed that Six3 mainly functions in D2 MSN precursor cells and gradually loses its function as D2 MSNs mature. Conditional deletion of Six3 had little effect on cell proliferation but blocked the differentiation of D2 MSN precursor cells. In addition, conditional overexpression of Six3 promoted the differentiation of precursor cells in the LGE. We measured an increase of apoptosis in the postnatal striatum of conditional Six3-knockout mice. This suggests that, in the absence of Six3, abnormally differentiated D2 MSNs are eliminated by programmed cell death. These results further identify Six3 as an important regulatory element during D2 MSN differentiation.
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Affiliation(s)
- Xiaolei Song
- Institute of Pediatrics, Children's Hospital of Fudan University, State Key Laboratory of Medical Neurobiology and Ministry of Education Frontiers Center for Brain Science, Institutes of Brain Science, Fudan University, Shanghai, 200032, China
| | - Haotian Chen
- Institute of Pediatrics, Children's Hospital of Fudan University, State Key Laboratory of Medical Neurobiology and Ministry of Education Frontiers Center for Brain Science, Institutes of Brain Science, Fudan University, Shanghai, 200032, China
| | - Zicong Shang
- Institute of Pediatrics, Children's Hospital of Fudan University, State Key Laboratory of Medical Neurobiology and Ministry of Education Frontiers Center for Brain Science, Institutes of Brain Science, Fudan University, Shanghai, 200032, China
| | - Heng Du
- Institute of Pediatrics, Children's Hospital of Fudan University, State Key Laboratory of Medical Neurobiology and Ministry of Education Frontiers Center for Brain Science, Institutes of Brain Science, Fudan University, Shanghai, 200032, China
| | - Zhenmeiyu Li
- Institute of Pediatrics, Children's Hospital of Fudan University, State Key Laboratory of Medical Neurobiology and Ministry of Education Frontiers Center for Brain Science, Institutes of Brain Science, Fudan University, Shanghai, 200032, China
| | - Yan Wen
- Institute of Pediatrics, Children's Hospital of Fudan University, State Key Laboratory of Medical Neurobiology and Ministry of Education Frontiers Center for Brain Science, Institutes of Brain Science, Fudan University, Shanghai, 200032, China
| | - Guoping Liu
- Institute of Pediatrics, Children's Hospital of Fudan University, State Key Laboratory of Medical Neurobiology and Ministry of Education Frontiers Center for Brain Science, Institutes of Brain Science, Fudan University, Shanghai, 200032, China
| | - Dashi Qi
- Institute of Pediatrics, Children's Hospital of Fudan University, State Key Laboratory of Medical Neurobiology and Ministry of Education Frontiers Center for Brain Science, Institutes of Brain Science, Fudan University, Shanghai, 200032, China
| | - Yan You
- Institute of Pediatrics, Children's Hospital of Fudan University, State Key Laboratory of Medical Neurobiology and Ministry of Education Frontiers Center for Brain Science, Institutes of Brain Science, Fudan University, Shanghai, 200032, China
| | - Zhengang Yang
- Institute of Pediatrics, Children's Hospital of Fudan University, State Key Laboratory of Medical Neurobiology and Ministry of Education Frontiers Center for Brain Science, Institutes of Brain Science, Fudan University, Shanghai, 200032, China
| | - Zhuangzhi Zhang
- Institute of Pediatrics, Children's Hospital of Fudan University, State Key Laboratory of Medical Neurobiology and Ministry of Education Frontiers Center for Brain Science, Institutes of Brain Science, Fudan University, Shanghai, 200032, China.
| | - Zhejun Xu
- Institute of Pediatrics, Children's Hospital of Fudan University, State Key Laboratory of Medical Neurobiology and Ministry of Education Frontiers Center for Brain Science, Institutes of Brain Science, Fudan University, Shanghai, 200032, China.
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14
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Wen Y, Su Z, Wang Z, Yang L, Liu G, Shang Z, Duan Y, Du H, Li Z, You Y, Li X, Yang Z, Zhang Z. Transcription Factor VAX1 Regulates the Regional Specification of the Subpallium Through Repressing Gsx2. Mol Neurobiol 2021; 58:3729-3744. [PMID: 33821423 DOI: 10.1007/s12035-021-02378-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Accepted: 03/29/2021] [Indexed: 12/22/2022]
Abstract
Specification of the progenitors' regional identity is a pivotal step during development of the cerebral cortex and basal ganglia. The molecular mechanisms underlying progenitor regionalization, however, are poorly understood. Here we showed that the transcription factor Vax1 was highly expressed in the developing subpallium. In its absence, the RNA-Seq analysis, in situ RNA hybridization, and immunofluorescence staining results showed that the cell proliferation was increased in the subpallium, but the neuronal differentiation was blocked. Moreover, the dLGE expands ventrally, and the vLGE, MGE, and septum get smaller. Finally, overexpressed VAX1 in the LGE progenitors strongly inhibits Gsx2 expression. Taken together, our findings show that Vax1 is crucial for subpallium regionalization by repressing Gsx2.
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Affiliation(s)
- Yan Wen
- Department of Neurology, Institute of Pediatrics, Children's Hospital of Fudan University, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institutes of Brain Science, Fudan University, 138 Yi Xue Yuan Road, Shanghai, 200032, China
| | - Zihao Su
- Department of Neurology, Institute of Pediatrics, Children's Hospital of Fudan University, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institutes of Brain Science, Fudan University, 138 Yi Xue Yuan Road, Shanghai, 200032, China
| | - Ziwu Wang
- Department of Neurology, Institute of Pediatrics, Children's Hospital of Fudan University, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institutes of Brain Science, Fudan University, 138 Yi Xue Yuan Road, Shanghai, 200032, China
| | - Lin Yang
- Department of Neurology, Institute of Pediatrics, Children's Hospital of Fudan University, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institutes of Brain Science, Fudan University, 138 Yi Xue Yuan Road, Shanghai, 200032, China
| | - Guoping Liu
- Department of Neurology, Institute of Pediatrics, Children's Hospital of Fudan University, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institutes of Brain Science, Fudan University, 138 Yi Xue Yuan Road, Shanghai, 200032, China
| | - Zicong Shang
- Department of Neurology, Institute of Pediatrics, Children's Hospital of Fudan University, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institutes of Brain Science, Fudan University, 138 Yi Xue Yuan Road, Shanghai, 200032, China
| | - Yangyang Duan
- Department of Neurology, Institute of Pediatrics, Children's Hospital of Fudan University, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institutes of Brain Science, Fudan University, 138 Yi Xue Yuan Road, Shanghai, 200032, China
| | - Heng Du
- Department of Neurology, Institute of Pediatrics, Children's Hospital of Fudan University, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institutes of Brain Science, Fudan University, 138 Yi Xue Yuan Road, Shanghai, 200032, China
| | - Zhenmeiyu Li
- Department of Neurology, Institute of Pediatrics, Children's Hospital of Fudan University, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institutes of Brain Science, Fudan University, 138 Yi Xue Yuan Road, Shanghai, 200032, China
| | - Yan You
- Department of Neurology, Institute of Pediatrics, Children's Hospital of Fudan University, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institutes of Brain Science, Fudan University, 138 Yi Xue Yuan Road, Shanghai, 200032, China
| | - Xiaosu Li
- Department of Neurology, Institute of Pediatrics, Children's Hospital of Fudan University, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institutes of Brain Science, Fudan University, 138 Yi Xue Yuan Road, Shanghai, 200032, China
| | - Zhengang Yang
- Department of Neurology, Institute of Pediatrics, Children's Hospital of Fudan University, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institutes of Brain Science, Fudan University, 138 Yi Xue Yuan Road, Shanghai, 200032, China
| | - Zhuangzhi Zhang
- Department of Neurology, Institute of Pediatrics, Children's Hospital of Fudan University, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institutes of Brain Science, Fudan University, 138 Yi Xue Yuan Road, Shanghai, 200032, China.
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15
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Zhang Y, Liu G, Guo T, Liang XG, Du H, Yang L, Bhaduri A, Li X, Xu Z, Zhang Z, Li Z, He M, Tsyporin J, Kriegstein AR, Rubenstein JL, Yang Z, Chen B. Cortical Neural Stem Cell Lineage Progression Is Regulated by Extrinsic Signaling Molecule Sonic Hedgehog. Cell Rep 2021; 30:4490-4504.e4. [PMID: 32234482 PMCID: PMC7197103 DOI: 10.1016/j.celrep.2020.03.027] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2019] [Revised: 12/07/2019] [Accepted: 03/11/2020] [Indexed: 02/07/2023] Open
Abstract
Neural stem cells (NSCs) in the prenatal neocortex progressively generate different subtypes of glutamatergic projection neurons. Following that, NSCs have a major switch in their progenitor properties and produce γ-aminobutyric acid (GABAergic) interneurons for the olfactory bulb (OB), cortical oligodendrocytes, and astrocytes. Herein, we provide evidence for the molecular mechanism that underlies this switch in the state of neocortical NSCs. We show that, at around E16.5, mouse neocortical NSCs start to generate GSX2-expressing (GSX2+) intermediate progenitor cells (IPCs). In vivo lineage-tracing study revealed that GSX2+ IPC population gives rise not only to OB interneurons but also to cortical oligodendrocytes and astrocytes, suggesting that they are a tri-potential population. We demonstrated that Sonic hedgehog signaling is both necessary and sufficient for the generation of GSX2+ IPCs by reducing GLI3R protein levels. Using single-cell RNA sequencing, we identify the transcriptional profile of GSX2+ IPCs and the process of the lineage switch of cortical NSCs. Zhang et al. reveal that cortical radial glia-derived GSX2+ cells at the late embryonic stage are tri-potential intermediate progenitors, which give rise to a subset of cortical oligodendrocytes, astrocytes, and olfactory bulb interneurons. SHH signaling is crucial for the generation of GSX2+ cells by reducing GLI3R protein level.
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Affiliation(s)
- Yue Zhang
- Department of Molecular, Cell and Developmental Biology, University of California, Santa Cruz, Santa Cruz, CA 95064, USA
| | - Guoping Liu
- State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institute for Translational Brain Research, Institutes of Brain Science, Department of Neurology, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Teng Guo
- State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institute for Translational Brain Research, Institutes of Brain Science, Department of Neurology, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Xiaoyi G Liang
- Department of Molecular, Cell and Developmental Biology, University of California, Santa Cruz, Santa Cruz, CA 95064, USA
| | - Heng Du
- State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institute for Translational Brain Research, Institutes of Brain Science, Department of Neurology, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Lin Yang
- State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institute for Translational Brain Research, Institutes of Brain Science, Department of Neurology, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Aparna Bhaduri
- Eli and Edythe Broad Center for Regeneration Medicine and Stem Cell Research, University of California, San Francisco, San Francisco, CA 94143, USA
| | - Xiaosu Li
- State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institute for Translational Brain Research, Institutes of Brain Science, Department of Neurology, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Zhejun Xu
- State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institute for Translational Brain Research, Institutes of Brain Science, Department of Neurology, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Zhuangzhi Zhang
- State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institute for Translational Brain Research, Institutes of Brain Science, Department of Neurology, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Zhenmeiyu Li
- State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institute for Translational Brain Research, Institutes of Brain Science, Department of Neurology, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Miao He
- State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institute for Translational Brain Research, Institutes of Brain Science, Department of Neurology, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Jeremiah Tsyporin
- Department of Molecular, Cell and Developmental Biology, University of California, Santa Cruz, Santa Cruz, CA 95064, USA
| | - Arnold R Kriegstein
- Eli and Edythe Broad Center for Regeneration Medicine and Stem Cell Research, University of California, San Francisco, San Francisco, CA 94143, USA
| | - John L Rubenstein
- Nina Ireland Laboratory of Developmental Neurobiology, Department of Psychiatry, UCSF Weill Institute for Neurosciences, University of California, San Francisco, San Francisco, CA 94158, USA
| | - Zhengang Yang
- State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institute for Translational Brain Research, Institutes of Brain Science, Department of Neurology, Zhongshan Hospital, Fudan University, Shanghai 200032, China.
| | - Bin Chen
- Department of Molecular, Cell and Developmental Biology, University of California, Santa Cruz, Santa Cruz, CA 95064, USA.
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16
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Abstract
Mouse cortical radial glial cells (RGCs) are primary neural stem cells that give rise to cortical oligodendrocytes, astrocytes, and olfactory bulb (OB) GABAergic interneurons in late embryogenesis. There are fundamental gaps in understanding how these diverse cell subtypes are generated. Here, by combining single-cell RNA-Seq with intersectional lineage analyses, we show that beginning at around E16.5, neocortical RGCs start to generate ASCL1+EGFR+ apical multipotent intermediate progenitors (MIPCs), which then differentiate into basal MIPCs that express ASCL1, EGFR, OLIG2, and MKI67. These basal MIPCs undergo several rounds of divisions to generate most of the cortical oligodendrocytes and astrocytes and a subpopulation of OB interneurons. Finally, single-cell ATAC-Seq supported our model for the genetic logic underlying the specification and differentiation of cortical glial cells and OB interneurons. Taken together, this work reveals the process of cortical radial glial cell lineage progression and the developmental origins of cortical astrocytes and oligodendrocytes.
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17
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Wen Y, Zhang Z, Li Z, Liu G, Tao G, Song X, Xu Z, Shang Z, Guo T, Su Z, Chen H, You Y, Li J, Yang Z. The PROK2/PROKR2 signaling pathway is required for the migration of most olfactory bulb interneurons. J Comp Neurol 2019; 527:2931-2947. [DOI: 10.1002/cne.24719] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2019] [Revised: 05/07/2019] [Accepted: 05/22/2019] [Indexed: 12/12/2022]
Affiliation(s)
- Yan Wen
- State Key Laboratory of Medical Neurobiology, Institutes of Brain Science, MOE Frontier Center for Brain Science, Department of Neurology, Zhongshan HospitalFudan University Shanghai PR China
| | - Zhuangzhi Zhang
- State Key Laboratory of Medical Neurobiology, Institutes of Brain Science, MOE Frontier Center for Brain Science, Department of Neurology, Zhongshan HospitalFudan University Shanghai PR China
| | - Zhenmeiyu Li
- State Key Laboratory of Medical Neurobiology, Institutes of Brain Science, MOE Frontier Center for Brain Science, Department of Neurology, Zhongshan HospitalFudan University Shanghai PR China
| | - Guoping Liu
- State Key Laboratory of Medical Neurobiology, Institutes of Brain Science, MOE Frontier Center for Brain Science, Department of Neurology, Zhongshan HospitalFudan University Shanghai PR China
| | - Guangxu Tao
- State Key Laboratory of Medical Neurobiology, Institutes of Brain Science, MOE Frontier Center for Brain Science, Department of Neurology, Zhongshan HospitalFudan University Shanghai PR China
| | - Xiaolei Song
- State Key Laboratory of Medical Neurobiology, Institutes of Brain Science, MOE Frontier Center for Brain Science, Department of Neurology, Zhongshan HospitalFudan University Shanghai PR China
| | - Zhejun Xu
- State Key Laboratory of Medical Neurobiology, Institutes of Brain Science, MOE Frontier Center for Brain Science, Department of Neurology, Zhongshan HospitalFudan University Shanghai PR China
| | - Zicong Shang
- State Key Laboratory of Medical Neurobiology, Institutes of Brain Science, MOE Frontier Center for Brain Science, Department of Neurology, Zhongshan HospitalFudan University Shanghai PR China
| | - Teng Guo
- State Key Laboratory of Medical Neurobiology, Institutes of Brain Science, MOE Frontier Center for Brain Science, Department of Neurology, Zhongshan HospitalFudan University Shanghai PR China
| | - Zihao Su
- State Key Laboratory of Medical Neurobiology, Institutes of Brain Science, MOE Frontier Center for Brain Science, Department of Neurology, Zhongshan HospitalFudan University Shanghai PR China
| | - Haotian Chen
- State Key Laboratory of Medical Neurobiology, Institutes of Brain Science, MOE Frontier Center for Brain Science, Department of Neurology, Zhongshan HospitalFudan University Shanghai PR China
| | - Yan You
- State Key Laboratory of Medical Neurobiology, Institutes of Brain Science, MOE Frontier Center for Brain Science, Department of Neurology, Zhongshan HospitalFudan University Shanghai PR China
| | - Jiada Li
- Hunan Key Laboratory of Animal Models for Human Diseases, School of Life SciencesCentral South University Changsha Hunan PR China
| | - Zhengang Yang
- State Key Laboratory of Medical Neurobiology, Institutes of Brain Science, MOE Frontier Center for Brain Science, Department of Neurology, Zhongshan HospitalFudan University Shanghai PR China
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18
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Cai Y, Yang Z. Adult Neural Stem Cells: Constant Extension from Embryonic Ancestors. Neurosci Bull 2019; 35:1120-1122. [PMID: 31119648 DOI: 10.1007/s12264-019-00396-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2019] [Accepted: 04/29/2019] [Indexed: 12/19/2022] Open
Affiliation(s)
- Yuqun Cai
- State Key Laboratory of Medical Neurobiology, Institutes of Brain Science, Ministry of Education Frontier Center for Brain Science, Department of Neurology, Zhongshan Hospital, Fudan University, Shanghai, 200032, China.
| | - Zhengang Yang
- State Key Laboratory of Medical Neurobiology, Institutes of Brain Science, Ministry of Education Frontier Center for Brain Science, Department of Neurology, Zhongshan Hospital, Fudan University, Shanghai, 200032, China
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19
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Wei S, Du H, Li Z, Tao G, Xu Z, Song X, Shang Z, Su Z, Chen H, Wen Y, Liu G, You Y, Zhang Z, Yang Z. Transcription factors
Sp8
and
Sp9
regulate the development of caudal ganglionic eminence‐derived cortical interneurons. J Comp Neurol 2019; 527:2860-2874. [DOI: 10.1002/cne.24712] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2019] [Revised: 04/16/2019] [Accepted: 05/03/2019] [Indexed: 12/13/2022]
Affiliation(s)
- Song Wei
- State Key Laboratory of Medical Neurobiology, Institutes of Brain Science, MOE Frontier Research Center for Brain Science, Department of Neurology, Zhongshan HospitalFudan University Shanghai China
| | - Heng Du
- State Key Laboratory of Medical Neurobiology, Institutes of Brain Science, MOE Frontier Research Center for Brain Science, Department of Neurology, Zhongshan HospitalFudan University Shanghai China
| | - Zhenmeiyu Li
- State Key Laboratory of Medical Neurobiology, Institutes of Brain Science, MOE Frontier Research Center for Brain Science, Department of Neurology, Zhongshan HospitalFudan University Shanghai China
| | - Guangxu Tao
- State Key Laboratory of Medical Neurobiology, Institutes of Brain Science, MOE Frontier Research Center for Brain Science, Department of Neurology, Zhongshan HospitalFudan University Shanghai China
| | - Zhejun Xu
- State Key Laboratory of Medical Neurobiology, Institutes of Brain Science, MOE Frontier Research Center for Brain Science, Department of Neurology, Zhongshan HospitalFudan University Shanghai China
| | - Xiaolei Song
- State Key Laboratory of Medical Neurobiology, Institutes of Brain Science, MOE Frontier Research Center for Brain Science, Department of Neurology, Zhongshan HospitalFudan University Shanghai China
| | - Zicong Shang
- State Key Laboratory of Medical Neurobiology, Institutes of Brain Science, MOE Frontier Research Center for Brain Science, Department of Neurology, Zhongshan HospitalFudan University Shanghai China
| | - Zihao Su
- State Key Laboratory of Medical Neurobiology, Institutes of Brain Science, MOE Frontier Research Center for Brain Science, Department of Neurology, Zhongshan HospitalFudan University Shanghai China
| | - Haotian Chen
- State Key Laboratory of Medical Neurobiology, Institutes of Brain Science, MOE Frontier Research Center for Brain Science, Department of Neurology, Zhongshan HospitalFudan University Shanghai China
| | - Yan Wen
- State Key Laboratory of Medical Neurobiology, Institutes of Brain Science, MOE Frontier Research Center for Brain Science, Department of Neurology, Zhongshan HospitalFudan University Shanghai China
| | - Guoping Liu
- State Key Laboratory of Medical Neurobiology, Institutes of Brain Science, MOE Frontier Research Center for Brain Science, Department of Neurology, Zhongshan HospitalFudan University Shanghai China
| | - Yan You
- State Key Laboratory of Medical Neurobiology, Institutes of Brain Science, MOE Frontier Research Center for Brain Science, Department of Neurology, Zhongshan HospitalFudan University Shanghai China
| | - Zhuangzhi Zhang
- State Key Laboratory of Medical Neurobiology, Institutes of Brain Science, MOE Frontier Research Center for Brain Science, Department of Neurology, Zhongshan HospitalFudan University Shanghai China
| | - Zhengang Yang
- State Key Laboratory of Medical Neurobiology, Institutes of Brain Science, MOE Frontier Research Center for Brain Science, Department of Neurology, Zhongshan HospitalFudan University Shanghai China
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20
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Tao G, Li Z, Wen Y, Song X, Wei S, Du H, Yang Z, Xu Z, You Y. Transcription Factors Sp8 and Sp9 Regulate Medial Ganglionic Eminence-Derived Cortical Interneuron Migration. Front Mol Neurosci 2019; 12:75. [PMID: 31001083 PMCID: PMC6454190 DOI: 10.3389/fnmol.2019.00075] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2019] [Accepted: 03/11/2019] [Indexed: 12/11/2022] Open
Abstract
Cortical interneurons are derived from the subpallium and reach the developing cortex through long tangential migration. Mature cortical interneurons are characterized by remarkable morphological, molecular, and functional diversity. The calcium-binding protein parvalbumin (PV) and neuropeptide somatostatin (SST) identify most medial ganglionic eminence (MGE)-derived cortical interneurons. Previously, we demonstrated that Sp9 plays a curial transcriptional role in regulating MGE-derived cortical interneuron development. Here, we show that SP8 protein is weekly expressed in the MGE mantle zone of wild type mice but upregulated in Sp9 null mutants. PV+ cortical interneurons were severely lost in Sp8/Sp9 double conditional knockouts due to defects in tangential migration compared with Sp9 single mutants, suggesting that Sp8/9 coordinately regulate PV+ cortical interneuron development. We provide evidence that Sp8/Sp9 activity is required for normal MGE-derived cortical interneuron migration, at least in part, through regulating the expression of EphA3, Ppp2r2c, and Rasgef1b.
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Affiliation(s)
- Guangxu Tao
- State Key Laboratory of Medical Neurobiology, MOE Frontier Research Center for Brain Science, Department of Neurology, Institutes of Brain Science, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Zhenmeiyu Li
- State Key Laboratory of Medical Neurobiology, MOE Frontier Research Center for Brain Science, Department of Neurology, Institutes of Brain Science, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Yan Wen
- State Key Laboratory of Medical Neurobiology, MOE Frontier Research Center for Brain Science, Department of Neurology, Institutes of Brain Science, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Xiaolei Song
- State Key Laboratory of Medical Neurobiology, MOE Frontier Research Center for Brain Science, Department of Neurology, Institutes of Brain Science, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Song Wei
- State Key Laboratory of Medical Neurobiology, MOE Frontier Research Center for Brain Science, Department of Neurology, Institutes of Brain Science, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Heng Du
- State Key Laboratory of Medical Neurobiology, MOE Frontier Research Center for Brain Science, Department of Neurology, Institutes of Brain Science, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Zhengang Yang
- State Key Laboratory of Medical Neurobiology, MOE Frontier Research Center for Brain Science, Department of Neurology, Institutes of Brain Science, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Zhejun Xu
- State Key Laboratory of Medical Neurobiology, MOE Frontier Research Center for Brain Science, Department of Neurology, Institutes of Brain Science, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Yan You
- State Key Laboratory of Medical Neurobiology, MOE Frontier Research Center for Brain Science, Department of Neurology, Institutes of Brain Science, Zhongshan Hospital, Fudan University, Shanghai, China
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