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Ventriglia S, Kalcheim C. From neural tube to spinal cord: The dynamic journey of the dorsal neuroepithelium. Dev Biol 2024; 511:26-38. [PMID: 38580174 DOI: 10.1016/j.ydbio.2024.04.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2024] [Revised: 03/21/2024] [Accepted: 04/02/2024] [Indexed: 04/07/2024]
Abstract
In a developing embryo, formation of tissues and organs is remarkably precise in both time and space. Through cell-cell interactions, neighboring progenitors coordinate their activities, sequentially generating distinct types of cells. At present, we only have limited knowledge, rather than a systematic understanding, of the underlying logic and mechanisms responsible for cell fate transitions. The formation of the dorsal aspect of the spinal cord is an outstanding model to tackle these dynamics, as it first generates the peripheral nervous system and is later responsible for transmitting sensory information from the periphery to the brain and for coordinating local reflexes. This is reflected first by the ontogeny of neural crest cells, progenitors of the peripheral nervous system, followed by formation of the definitive roof plate of the central nervous system and specification of adjacent interneurons, then a transformation of roof plate into dorsal radial glia and ependyma lining the forming central canal. How do these peripheral and central neural branches segregate from common progenitors? How are dorsal radial glia established concomitant with transformation of the neural tube lumen into a central canal? How do the dorsal radial glia influence neighboring cells? This is only a partial list of questions whose clarification requires the implementation of experimental paradigms in which precise control of timing is crucial. Here, we outline some available answers and still open issues, while highlighting the contributions of avian models and their potential to address mechanisms of neural patterning and function.
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Affiliation(s)
- Susanna Ventriglia
- Department of Medical Neurobiology, Institute of Medical Research Israel-Canada (IMRIC) and the Edmond and Lily Safra Center for Brain Sciences (ELSC), Hebrew University of Jerusalem-Hadassah Medical School, Jerusalem, 9112102, P.O.Box 12272, Israel.
| | - Chaya Kalcheim
- Department of Medical Neurobiology, Institute of Medical Research Israel-Canada (IMRIC) and the Edmond and Lily Safra Center for Brain Sciences (ELSC), Hebrew University of Jerusalem-Hadassah Medical School, Jerusalem, 9112102, P.O.Box 12272, Israel.
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2
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Chen J, Tsai YH, Linden AK, Kessler JA, Peng CY. YAP and TAZ differentially regulate postnatal cortical progenitor proliferation and astrocyte differentiation. J Cell Sci 2024; 137:jcs261516. [PMID: 38804668 DOI: 10.1242/jcs.261516] [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: 07/25/2023] [Accepted: 04/09/2024] [Indexed: 04/20/2024] Open
Abstract
WW domain-containing transcription regulator 1 (WWTR1, referred to here as TAZ) and Yes-associated protein (YAP, also known as YAP1) are transcriptional co-activators traditionally studied together as a part of the Hippo pathway, and are best known for their roles in stem cell proliferation and differentiation. Despite their similarities, TAZ and YAP can exert divergent cellular effects by differentially interacting with other signaling pathways that regulate stem cell maintenance or differentiation. In this study, we show in mouse neural stem and progenitor cells (NPCs) that TAZ regulates astrocytic differentiation and maturation, and that TAZ mediates some, but not all, of the effects of bone morphogenetic protein (BMP) signaling on astrocytic development. By contrast, both TAZ and YAP mediate the effects on NPC fate of β1-integrin (ITGB1) and integrin-linked kinase signaling, and these effects are dependent on extracellular matrix cues. These findings demonstrate that TAZ and YAP perform divergent functions in the regulation of astrocyte differentiation, where YAP regulates cell cycle states of astrocytic progenitors and TAZ regulates differentiation and maturation from astrocytic progenitors into astrocytes.
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Affiliation(s)
- Jessie Chen
- Department of Neurology, Northwestern University's Feinberg School of Medicine, Chicago, IL 60611, USA
| | - Yung-Hsu Tsai
- Department of Neurology, Northwestern University's Feinberg School of Medicine, Chicago, IL 60611, USA
| | - Anne K Linden
- Department of Neurology, Northwestern University's Feinberg School of Medicine, Chicago, IL 60611, USA
| | - John A Kessler
- Department of Neurology, Northwestern University's Feinberg School of Medicine, Chicago, IL 60611, USA
| | - Chian-Yu Peng
- Department of Neurology, Northwestern University's Feinberg School of Medicine, Chicago, IL 60611, USA
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3
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Bastedo WE, Scott RW, Arostegui M, Underhill TM. Single-cell analysis of mesenchymal cells in permeable neural vasculature reveals novel diverse subpopulations of fibroblasts. Fluids Barriers CNS 2024; 21:31. [PMID: 38575991 PMCID: PMC10996213 DOI: 10.1186/s12987-024-00535-7] [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: 07/31/2023] [Accepted: 03/25/2024] [Indexed: 04/06/2024] Open
Abstract
BACKGROUND In the choroid plexus and pituitary gland, vasculature is known to have a permeable, fenestrated phenotype which allows for the free passage of molecules in contrast to the blood brain barrier observed in the rest of the CNS. The endothelium of these compartments, along with secretory, neural-lineage cells (choroid epithelium and pituitary endocrine cells) have been studied in detail, but less attention has been given to the perivascular mesenchymal cells of these compartments. METHODS The Hic1CreERT2 Rosa26LSL-TdTomato mouse model was used in conjunction with a PdgfraH2B-EGFP mouse model to examine mesenchymal cells, which can be subdivided into Pdgfra+ fibroblasts and Pdgfra- pericytes within the choroid plexus (CP) and pituitary gland (PG), by histological, immunofluorescence staining and single-cell RNA-sequencing analyses. RESULTS We found that both CP and PG possess substantial populations of distinct Hic1+ mesenchymal cells, including an abundance of Pdgfra+ fibroblasts. Within the pituitary, we identified distinct subpopulations of Hic1+ fibroblasts in the glandular anterior pituitary and the neurosecretory posterior pituitary. We also identified multiple distinct markers of CP, PG, and the meningeal mesenchymal compartment, including alkaline phosphatase, indole-n-methyltransferase and CD34. CONCLUSIONS Novel, distinct subpopulations of mesenchymal cells can be found in permeable vascular interfaces, including the CP, PG, and meninges, and make distinct contributions to both organs through the production of structural proteins, enzymes, transporters, and trophic molecules.
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Affiliation(s)
- William E Bastedo
- Department of Cellular and Physiological Sciences, University of British Columbia, 2222 Health Sciences Mall, Vancouver, BC, V6T 1Z3, Canada
| | - R Wilder Scott
- Department of Cellular and Physiological Sciences, University of British Columbia, 2222 Health Sciences Mall, Vancouver, BC, V6T 1Z3, Canada
- School of Biomedical Engineering and the Biomedical Research Centre, University of British Columbia, 2222 Health Sciences Mall, Vancouver, BC, V6T 1Z3, Canada
| | - Martin Arostegui
- Department of Cellular and Physiological Sciences, University of British Columbia, 2222 Health Sciences Mall, Vancouver, BC, V6T 1Z3, Canada
| | - T Michael Underhill
- Department of Cellular and Physiological Sciences, University of British Columbia, 2222 Health Sciences Mall, Vancouver, BC, V6T 1Z3, Canada.
- School of Biomedical Engineering and the Biomedical Research Centre, University of British Columbia, 2222 Health Sciences Mall, Vancouver, BC, V6T 1Z3, Canada.
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4
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Schevenels G, Cabochette P, America M, Vandenborne A, De Grande L, Guenther S, He L, Dieu M, Christou B, Vermeersch M, Germano RFV, Perez-Morga D, Renard P, Martin M, Vanlandewijck M, Betsholtz C, Vanhollebeke B. A brain-specific angiogenic mechanism enabled by tip cell specialization. Nature 2024; 628:863-871. [PMID: 38570687 PMCID: PMC11041701 DOI: 10.1038/s41586-024-07283-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Accepted: 03/07/2024] [Indexed: 04/05/2024]
Abstract
Vertebrate organs require locally adapted blood vessels1,2. The gain of such organotypic vessel specializations is often deemed to be molecularly unrelated to the process of organ vascularization. Here, opposing this model, we reveal a molecular mechanism for brain-specific angiogenesis that operates under the control of Wnt7a/b ligands-well-known blood-brain barrier maturation signals3-5. The control mechanism relies on Wnt7a/b-dependent expression of Mmp25, which we find is enriched in brain endothelial cells. CRISPR-Cas9 mutagenesis in zebrafish reveals that this poorly characterized glycosylphosphatidylinositol-anchored matrix metalloproteinase is selectively required in endothelial tip cells to enable their initial migration across the pial basement membrane lining the brain surface. Mechanistically, Mmp25 confers brain invasive competence by cleaving meningeal fibroblast-derived collagen IV α5/6 chains within a short non-collagenous region of the central helical part of the heterotrimer. After genetic interference with the pial basement membrane composition, the Wnt-β-catenin-dependent organotypic control of brain angiogenesis is lost, resulting in properly patterned, yet blood-brain-barrier-defective cerebrovasculatures. We reveal an organ-specific angiogenesis mechanism, shed light on tip cell mechanistic angiodiversity and thereby illustrate how organs, by imposing local constraints on angiogenic tip cells, can select vessels matching their distinctive physiological requirements.
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Affiliation(s)
- Giel Schevenels
- Laboratory of Neurovascular Signaling, Department of Molecular Biology, ULB Neuroscience Institute, Université libre de Bruxelles (ULB), Gosselies, Belgium
| | - Pauline Cabochette
- Laboratory of Neurovascular Signaling, Department of Molecular Biology, ULB Neuroscience Institute, Université libre de Bruxelles (ULB), Gosselies, Belgium
| | - Michelle America
- Laboratory of Neurovascular Signaling, Department of Molecular Biology, ULB Neuroscience Institute, Université libre de Bruxelles (ULB), Gosselies, Belgium
| | - Arnaud Vandenborne
- Laboratory of Neurovascular Signaling, Department of Molecular Biology, ULB Neuroscience Institute, Université libre de Bruxelles (ULB), Gosselies, Belgium
| | - Line De Grande
- Laboratory of Neurovascular Signaling, Department of Molecular Biology, ULB Neuroscience Institute, Université libre de Bruxelles (ULB), Gosselies, Belgium
| | - Stefan Guenther
- Max Planck Institute for Heart and Lung Research, ECCPS Bioinformatics and Deep Sequencing Platform, Bad Nauheim, Germany
| | - Liqun He
- Department of Immunology, Genetics and Pathology, Rudbeck Laboratory, Uppsala University, Uppsala, Sweden
| | - Marc Dieu
- Mass Spectrometry Facility (MaSUN), University of Namur, Namur, Belgium
| | - Basile Christou
- Laboratory of Neurovascular Signaling, Department of Molecular Biology, ULB Neuroscience Institute, Université libre de Bruxelles (ULB), Gosselies, Belgium
| | - Marjorie Vermeersch
- Center for Microscopy and Molecular Imaging (CMMI), Université libre de Bruxelles (ULB), Gosselies, Belgium
| | - Raoul F V Germano
- Laboratory of Neurovascular Signaling, Department of Molecular Biology, ULB Neuroscience Institute, Université libre de Bruxelles (ULB), Gosselies, Belgium
| | - David Perez-Morga
- Laboratory of Neurovascular Signaling, Department of Molecular Biology, ULB Neuroscience Institute, Université libre de Bruxelles (ULB), Gosselies, Belgium
- Center for Microscopy and Molecular Imaging (CMMI), Université libre de Bruxelles (ULB), Gosselies, Belgium
| | - Patricia Renard
- Mass Spectrometry Facility (MaSUN), University of Namur, Namur, Belgium
| | - Maud Martin
- Laboratory of Neurovascular Signaling, Department of Molecular Biology, ULB Neuroscience Institute, Université libre de Bruxelles (ULB), Gosselies, Belgium
| | - Michael Vanlandewijck
- Department of Immunology, Genetics and Pathology, Rudbeck Laboratory, Uppsala University, Uppsala, Sweden
- Department of Medicine (Huddinge), Karolinska Institutet, Huddinge, Sweden
| | - Christer Betsholtz
- Department of Immunology, Genetics and Pathology, Rudbeck Laboratory, Uppsala University, Uppsala, Sweden
- Department of Medicine (Huddinge), Karolinska Institutet, Huddinge, Sweden
| | - Benoit Vanhollebeke
- Laboratory of Neurovascular Signaling, Department of Molecular Biology, ULB Neuroscience Institute, Université libre de Bruxelles (ULB), Gosselies, Belgium.
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5
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Abubaker M, Greaney A, Newport D, Mulvihill JJE. Characterization of primary human leptomeningeal cells in 2D culture. Heliyon 2024; 10:e26744. [PMID: 38434413 PMCID: PMC10906397 DOI: 10.1016/j.heliyon.2024.e26744] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Revised: 01/31/2024] [Accepted: 02/19/2024] [Indexed: 03/05/2024] Open
Abstract
Maintaining the integrity of brain barriers is critical for a healthy central nervous system. While extensive research has focused on the blood-brain barrier (BBB) of the brain vasculature and blood-cerebrospinal fluid barrier (BCSFB) of the choroid plexus, the barriers formed by the meninges have not received as much attention. These membranes create a barrier between the brain and cerebrospinal fluid (CSF), as well as between CSF and blood. Recent studies have revealed that this barrier has been implicated in the development of neurological and immunological disorders. In order to gain a deeper comprehension of the functioning and significance of the meningeal barriers, sophisticated models of these barriers, need to be created. The aim of this paper is to investigate the characteristics of commercially available primary leptomeningeal cells (LMCs) that form the meningeal barriers, in a cultured environment, including their morphology, proteomics, and barrier properties, and to determine whether passaging of these cells affects their behaviour in comparison to their in vivo state. The results indicate that higher passage numbers significantly alter the morphology and protein localisation and expression of the LMCs. Furthermore, the primary cell culture co-stained for S100A6 and E-cadherin suggesting it is a co-culture of both pial and arachnoid cells. Additionally, cultured LMCs showed an increase in vimentin and cytokeratin expression and a lack of junctional proteins localisation on the cell membrane, which could suggest loss of epithelial properties due to culture, preventing barrier formation. This study shows that the LMCs may be a co-culture of pial and arachnoid cells, that the optimal LMC passage range is between passages two and five for experimentation and that the primary human LMCs form a weak barrier when in culture.
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Affiliation(s)
- Mannthalah Abubaker
- Bernal Institute, University of Limerick, Castletroy, Limerick, Ireland
- School of Engineering, University of Limerick, Castletroy, Limerick, Ireland
| | - Aisling Greaney
- Bernal Institute, University of Limerick, Castletroy, Limerick, Ireland
- School of Engineering, University of Limerick, Castletroy, Limerick, Ireland
| | - David Newport
- Bernal Institute, University of Limerick, Castletroy, Limerick, Ireland
- School of Engineering, University of Limerick, Castletroy, Limerick, Ireland
| | - John J E Mulvihill
- Bernal Institute, University of Limerick, Castletroy, Limerick, Ireland
- School of Engineering, University of Limerick, Castletroy, Limerick, Ireland
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6
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Smyth LCD, Xu D, Okar SV, Dykstra T, Rustenhoven J, Papadopoulos Z, Bhasiin K, Kim MW, Drieu A, Mamuladze T, Blackburn S, Gu X, Gaitán MI, Nair G, Storck SE, Du S, White MA, Bayguinov P, Smirnov I, Dikranian K, Reich DS, Kipnis J. Identification of direct connections between the dura and the brain. Nature 2024; 627:165-173. [PMID: 38326613 DOI: 10.1038/s41586-023-06993-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Accepted: 12/18/2023] [Indexed: 02/09/2024]
Abstract
The arachnoid barrier delineates the border between the central nervous system and dura mater. Although the arachnoid barrier creates a partition, communication between the central nervous system and the dura mater is crucial for waste clearance and immune surveillance1,2. How the arachnoid barrier balances separation and communication is poorly understood. Here, using transcriptomic data, we developed transgenic mice to examine specific anatomical structures that function as routes across the arachnoid barrier. Bridging veins create discontinuities where they cross the arachnoid barrier, forming structures that we termed arachnoid cuff exit (ACE) points. The openings that ACE points create allow the exchange of fluids and molecules between the subarachnoid space and the dura, enabling the drainage of cerebrospinal fluid and limited entry of molecules from the dura to the subarachnoid space. In healthy human volunteers, magnetic resonance imaging tracers transit along bridging veins in a similar manner to access the subarachnoid space. Notably, in neuroinflammatory conditions such as experimental autoimmune encephalomyelitis, ACE points also enable cellular trafficking, representing a route for immune cells to directly enter the subarachnoid space from the dura mater. Collectively, our results indicate that ACE points are a critical part of the anatomy of neuroimmune communication in both mice and humans that link the central nervous system with the dura and its immunological diversity and waste clearance systems.
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Affiliation(s)
- Leon C D Smyth
- Brain Immunology and Glia (BIG) Center, Washington University in St Louis, St Louis, MO, USA.
- Department of Pathology and Immunology, School of Medicine, Washington University in St Louis, St Louis, MO, USA.
| | - Di Xu
- Brain Immunology and Glia (BIG) Center, Washington University in St Louis, St Louis, MO, USA
- Department of Pathology and Immunology, School of Medicine, Washington University in St Louis, St Louis, MO, USA
| | - Serhat V Okar
- Translational Neuroradiology Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD, USA
| | - Taitea Dykstra
- Brain Immunology and Glia (BIG) Center, Washington University in St Louis, St Louis, MO, USA
- Department of Pathology and Immunology, School of Medicine, Washington University in St Louis, St Louis, MO, USA
| | - Justin Rustenhoven
- Brain Immunology and Glia (BIG) Center, Washington University in St Louis, St Louis, MO, USA
- Department of Pathology and Immunology, School of Medicine, Washington University in St Louis, St Louis, MO, USA
- Department of Pharmacology and Clinical Pharmacology, Faculty of Medical and Health Sciences, University of Auckland, Auckland, New Zealand
- Centre for Brain Research, Faculty of Medical and Health Sciences, University of Auckland, Auckland, New Zealand
| | - Zachary Papadopoulos
- Brain Immunology and Glia (BIG) Center, Washington University in St Louis, St Louis, MO, USA
- Department of Pathology and Immunology, School of Medicine, Washington University in St Louis, St Louis, MO, USA
- Neuroscience Graduate Program, School of Medicine, Washington University in St Louis, St Louis, MO, USA
| | - Kesshni Bhasiin
- Brain Immunology and Glia (BIG) Center, Washington University in St Louis, St Louis, MO, USA
- Department of Pathology and Immunology, School of Medicine, Washington University in St Louis, St Louis, MO, USA
| | - Min Woo Kim
- Brain Immunology and Glia (BIG) Center, Washington University in St Louis, St Louis, MO, USA
- Department of Pathology and Immunology, School of Medicine, Washington University in St Louis, St Louis, MO, USA
- Immunology Graduate Program, School of Medicine, Washington University in St Louis, St Louis, MO, USA
| | - Antoine Drieu
- Brain Immunology and Glia (BIG) Center, Washington University in St Louis, St Louis, MO, USA
- Department of Pathology and Immunology, School of Medicine, Washington University in St Louis, St Louis, MO, USA
| | - Tornike Mamuladze
- Brain Immunology and Glia (BIG) Center, Washington University in St Louis, St Louis, MO, USA
- Department of Pathology and Immunology, School of Medicine, Washington University in St Louis, St Louis, MO, USA
- Immunology Graduate Program, School of Medicine, Washington University in St Louis, St Louis, MO, USA
| | - Susan Blackburn
- Brain Immunology and Glia (BIG) Center, Washington University in St Louis, St Louis, MO, USA
- Department of Pathology and Immunology, School of Medicine, Washington University in St Louis, St Louis, MO, USA
| | - Xingxing Gu
- Brain Immunology and Glia (BIG) Center, Washington University in St Louis, St Louis, MO, USA
- Department of Pathology and Immunology, School of Medicine, Washington University in St Louis, St Louis, MO, USA
| | - María I Gaitán
- Translational Neuroradiology Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD, USA
| | - Govind Nair
- Quantitative MRI Core Facility, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD, USA
| | - Steffen E Storck
- Brain Immunology and Glia (BIG) Center, Washington University in St Louis, St Louis, MO, USA
- Department of Pathology and Immunology, School of Medicine, Washington University in St Louis, St Louis, MO, USA
| | - Siling Du
- Brain Immunology and Glia (BIG) Center, Washington University in St Louis, St Louis, MO, USA
- Department of Pathology and Immunology, School of Medicine, Washington University in St Louis, St Louis, MO, USA
- Immunology Graduate Program, School of Medicine, Washington University in St Louis, St Louis, MO, USA
| | - Michael A White
- Department of Genetics, Washington University School of Medicine, Washington University in St Louis, St Louis, MO, USA
| | - Peter Bayguinov
- Washington University Center for Cellular Imaging, Washington University School of Medicine, Washington University in St Louis, St Louis, MO, USA
- Department of Neuroscience, Washington University School of Medicine, Washington University in St Louis, St Louis, MO, USA
| | - Igor Smirnov
- Brain Immunology and Glia (BIG) Center, Washington University in St Louis, St Louis, MO, USA
- Department of Pathology and Immunology, School of Medicine, Washington University in St Louis, St Louis, MO, USA
| | - Krikor Dikranian
- Department of Neuroscience, Washington University School of Medicine, Washington University in St Louis, St Louis, MO, USA
| | - Daniel S Reich
- Translational Neuroradiology Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD, USA
| | - Jonathan Kipnis
- Brain Immunology and Glia (BIG) Center, Washington University in St Louis, St Louis, MO, USA.
- Department of Pathology and Immunology, School of Medicine, Washington University in St Louis, St Louis, MO, USA.
- Neuroscience Graduate Program, School of Medicine, Washington University in St Louis, St Louis, MO, USA.
- Immunology Graduate Program, School of Medicine, Washington University in St Louis, St Louis, MO, USA.
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7
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Fantini V, Ferrari RR, Bordoni M, Spampinato E, Pandini C, Davin A, Medici V, Gagliardi S, Guaita A, Pansarasa O, Cereda C, Poloni TE. Functional analysis and transcriptome profile of meninges and skin fibroblasts from human-aged donors. Cell Prolif 2024:e13627. [PMID: 38421110 DOI: 10.1111/cpr.13627] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2023] [Revised: 02/12/2024] [Accepted: 02/19/2024] [Indexed: 03/02/2024] Open
Abstract
The central nervous system (CNS) is surrounded by three membranes called meninges. Specialised fibroblasts, originating from the mesoderm and neural crest, primarily populate the meninges and serve as a binding agent. Our goal was to compare fibroblasts from meninges and skin obtained from the same human-aged donors, exploring their molecular and cellular characteristics related to CNS functions. We isolated meningeal fibroblasts (MFs) from brain donors and skin fibroblasts (SFs) from the same subjects. A functional analysis was performed measuring cell appearance, metabolic activity, and cellular orientation. We examined fibronectin, serpin H1, β-III-tubulin, and nestin through qPCR and immunofluorescence. A whole transcriptome analysis was also performed to characterise the gene expression of MFs and SFs. MFs appeared more rapidly in the post-tissue processing, while SFs showed an elevated cellular metabolism and a well-defined cellular orientation. The four markers were mostly similar between the MFs and SFs, except for nestin, more expressed in MFs. Transcriptome analysis reveals significant differences, particularly in cyclic adenosine monophosphate (cAMP) metabolism and response to forskolin, both of which are upregulated in MFs. This study highlights MFs' unique characteristics, including the timing of appearance, metabolic activity, and gene expression patterns, particularly in cAMP metabolism and response to forskolin. These findings contribute to a deeper understanding of non-neuronal cells' involvement in CNS activities and potentially open avenues for therapeutic exploration.
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Affiliation(s)
- Valentina Fantini
- Laboratory of Neurobiology and Neurogenetic, Golgi-Cenci Foundation, Abbiategrasso, Italy
| | - Riccardo Rocco Ferrari
- Laboratory of Neurobiology and Neurogenetic, Golgi-Cenci Foundation, Abbiategrasso, Italy
| | - Matteo Bordoni
- Cellular Model and Neuroepigenetics Unit, IRCCS Mondino Foundation, Pavia, Italy
| | - Eleonora Spampinato
- Cellular Model and Neuroepigenetics Unit, IRCCS Mondino Foundation, Pavia, Italy
- Department of Biology and Biotechnology, University of Pavia, Pavia, Italy
| | - Cecilia Pandini
- Molecular Biology and Transcriptomics Unit, IRCCS Mondino Foundation, Pavia, Italy
- Department of Biosciences, University of Milan, Milan, Italy
| | - Annalisa Davin
- Laboratory of Neurobiology and Neurogenetic, Golgi-Cenci Foundation, Abbiategrasso, Italy
| | - Valentina Medici
- Department of Neurology and Neuropathology, Golgi-Cenci Foundation, Abbiategrasso, Italy
| | - Stella Gagliardi
- Molecular Biology and Transcriptomics Unit, IRCCS Mondino Foundation, Pavia, Italy
| | - Antonio Guaita
- Laboratory of Neurobiology and Neurogenetic, Golgi-Cenci Foundation, Abbiategrasso, Italy
- Department of Neurology and Neuropathology, Golgi-Cenci Foundation, Abbiategrasso, Italy
| | - Orietta Pansarasa
- Cellular Model and Neuroepigenetics Unit, IRCCS Mondino Foundation, Pavia, Italy
| | - Cristina Cereda
- Center of Functional Genomics and Rare Diseases, Department of Pediatrics, Buzzi Children's Hospital, Milan, Italy
| | - Tino Emanuele Poloni
- Department of Neurology and Neuropathology, Golgi-Cenci Foundation, Abbiategrasso, Italy
- Department of Rehabilitation, ASP Golgi-Redaelli Geriatric Hospital, Abbiategrasso, Italy
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8
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Lei Y, Liang X, Sun Y, Yao T, Gong H, Chen Z, Gao Y, Wang H, Wang R, Huang Y, Yang T, Yu M, Liu L, Yi CX, Wu QF, Kong X, Xu X, Liu S, Zhang Z, Liu T. Region-specific transcriptomic responses to obesity and diabetes in macaque hypothalamus. Cell Metab 2024; 36:438-453.e6. [PMID: 38325338 DOI: 10.1016/j.cmet.2024.01.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Revised: 10/27/2023] [Accepted: 01/05/2024] [Indexed: 02/09/2024]
Abstract
The hypothalamus plays a crucial role in the progression of obesity and diabetes; however, its structural complexity and cellular heterogeneity impede targeted treatments. Here, we profiled the single-cell and spatial transcriptome of the hypothalamus in obese and sporadic type 2 diabetic macaques, revealing primate-specific distributions of clusters and genes as well as spatial region, cell-type-, and gene-feature-specific changes. The infundibular (INF) and paraventricular nuclei (PVN) are most susceptible to metabolic disruption, with the PVN being more sensitive to diabetes. In the INF, obesity results in reduced synaptic plasticity and energy sensing capability, whereas diabetes involves molecular reprogramming associated with impaired tanycytic barriers, activated microglia, and neuronal inflammatory response. In the PVN, cellular metabolism and neural activity are suppressed in diabetic macaques. Spatial transcriptomic data reveal microglia's preference for the parenchyma over the third ventricle in diabetes. Our findings provide a comprehensive view of molecular changes associated with obesity and diabetes.
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Affiliation(s)
- Ying Lei
- BGI-Research, Hangzhou 310012, China; BGI-Research, Shenzhen 518103, China
| | - Xian Liang
- State Key Laboratory of Genetic Engineering, Department of Endocrinology and Metabolism, Human Phenome Institute, Institute of Metabolism and Integrative Biology, and School of Life Sciences, Zhongshan Hospital, Fudan University, Shanghai 200438, China; School of Life Sciences, Fudan University, Shanghai 200438, China
| | - Yunong Sun
- BGI-Research, Hangzhou 310012, China; BGI-Research, Shenzhen 518103, China
| | - Ting Yao
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Xi'an Jiaotong University School of Medicine, Xi'an, Shanxi 710063, China
| | - Hongyu Gong
- School of Life Sciences, Institues of Biomedical Sciences, Inner Mongolia University, Hohhot 010000, China
| | - Zhenhua Chen
- State Key Laboratory of Molecular Development Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China
| | - Yuanqing Gao
- Jiangsu Provincial Key Laboratory of Cardiovascular and Cerebrovascular Medicine, School of Pharmacy, Nanjing Medical University, Nanjing 211166, China
| | - Hui Wang
- School of Life Sciences, Fudan University, Shanghai 200438, China
| | - Ru Wang
- School of Kinesiology, Shanghai University of Sport, Shanghai 200438, China
| | - Yunqi Huang
- BGI-Research, Hangzhou 310012, China; BGI-Research, Shenzhen 518103, China
| | - Tao Yang
- China National GeneBank, BGI-Shenzhen, Shenzhen 518120, China
| | - Miao Yu
- School of Life Sciences, Fudan University, Shanghai 200438, China
| | - Longqi Liu
- BGI-Research, Hangzhou 310012, China; BGI-Research, Shenzhen 518103, China
| | - Chun-Xia Yi
- Department of Endocrinology and Metabolism, Amsterdam University Medical Centers, University of Amsterdam, Meibergdreef 9, 1105AZ Amsterdam, the Netherlands
| | - Qing-Feng Wu
- State Key Laboratory of Molecular Development Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China
| | - Xingxing Kong
- School of Life Sciences, Fudan University, Shanghai 200438, China.
| | - Xun Xu
- BGI-Research, Hangzhou 310012, China; BGI-Research, Shenzhen 518103, China.
| | - Shiping Liu
- BGI-Research, Hangzhou 310012, China; BGI-Research, Shenzhen 518103, China.
| | - Zhi Zhang
- State Key Laboratory of Genetic Engineering, Department of Endocrinology and Metabolism, Human Phenome Institute, Institute of Metabolism and Integrative Biology, and School of Life Sciences, Zhongshan Hospital, Fudan University, Shanghai 200438, China; School of Life Sciences, Fudan University, Shanghai 200438, China.
| | - Tiemin Liu
- State Key Laboratory of Genetic Engineering, Department of Endocrinology and Metabolism, Human Phenome Institute, Institute of Metabolism and Integrative Biology, and School of Life Sciences, Zhongshan Hospital, Fudan University, Shanghai 200438, China; School of Life Sciences, Fudan University, Shanghai 200438, China; School of Life Sciences, Institues of Biomedical Sciences, Inner Mongolia University, Hohhot 010000, China.
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9
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Gastfriend BD, Snyder ME, Holt HE, Daneman R, Palecek SP, Shusta EV. Notch3 directs differentiation of brain mural cells from human pluripotent stem cell-derived neural crest. SCIENCE ADVANCES 2024; 10:eadi1737. [PMID: 38306433 PMCID: PMC10836734 DOI: 10.1126/sciadv.adi1737] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/2023] [Accepted: 01/04/2024] [Indexed: 02/04/2024]
Abstract
Brain mural cells regulate development and function of the blood-brain barrier and control blood flow. Existing in vitro models of human brain mural cells have low expression of key mural cell genes, including NOTCH3. Thus, we asked whether activation of Notch3 signaling in hPSC-derived neural crest could direct the differentiation of brain mural cells with an improved transcriptional profile. Overexpression of the Notch3 intracellular domain (N3ICD) induced expression of mural cell markers PDGFRβ, TBX2, FOXS1, KCNJ8, SLC6A12, and endogenous Notch3. The resulting N3ICD-derived brain mural cells produced extracellular matrix, self-assembled with endothelial cells, and had functional KATP channels. ChIP-seq revealed that Notch3 serves as a direct input to relatively few genes in the context of this differentiation process. Our work demonstrates that activation of Notch3 signaling is sufficient to direct the differentiation of neural crest to mural cells and establishes a developmentally relevant differentiation protocol.
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Affiliation(s)
- Benjamin D Gastfriend
- Department of Chemical and Biological Engineering, University of Wisconsin-Madison, Madison, WI 53706, USA
| | - Margaret E Snyder
- Department of Chemical and Biological Engineering, University of Wisconsin-Madison, Madison, WI 53706, USA
| | - Hope E Holt
- Department of Chemical and Biological Engineering, University of Wisconsin-Madison, Madison, WI 53706, USA
| | - Richard Daneman
- Departments of Neurosciences and Pharmacology, University of California, San Diego, La Jolla, CA 92093, USA
| | - Sean P Palecek
- Department of Chemical and Biological Engineering, University of Wisconsin-Madison, Madison, WI 53706, USA
| | - Eric V Shusta
- Department of Chemical and Biological Engineering, University of Wisconsin-Madison, Madison, WI 53706, USA
- Department of Neurological Surgery, University of Wisconsin-Madison, Madison, WI 53706, USA
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10
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Rebejac J, Eme-Scolan E, Rua R. Role of meningeal immunity in brain function and protection against pathogens. J Inflamm (Lond) 2024; 21:3. [PMID: 38291415 PMCID: PMC10829400 DOI: 10.1186/s12950-023-00374-7] [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: 10/31/2023] [Accepted: 12/22/2023] [Indexed: 02/01/2024] Open
Abstract
The brain and spinal cord collectively referred to as the Central Nervous System (CNS) are protected by the blood-brain barrier that limits molecular, microbial and immunological trafficking. However, in the last decade, many studies have emphasized the protective role of 'border regions' at the surface of the CNS which are highly immunologically active, in contrast with the CNS parenchyma. In the steady-state, lymphoid and myeloid cells residing in the cranial meninges can affect brain function and behavior. Upon infection, they provide a first layer of protection against microbial neuroinvasion. The maturation of border sites over time enables more effective brain protection in adults as compared to neonates. Here, we provide a comprehensive update on the meningeal immune system and its role in physiological brain function and protection against infectious agents.
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Affiliation(s)
- Julie Rebejac
- Centre d'Immunologie de Marseille-Luminy, Aix Marseille Université, Inserm, CNRS, Marseille, France
| | - Elisa Eme-Scolan
- Centre d'Immunologie de Marseille-Luminy, Aix Marseille Université, Inserm, CNRS, Marseille, France
| | - Rejane Rua
- Centre d'Immunologie de Marseille-Luminy, Aix Marseille Université, Inserm, CNRS, Marseille, France.
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11
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Roberts LM, Hammel JH, Azar F, Feng TYA, Cunningham JJ, Rutkowski M, Munson J. Demonstration of chemotherapeutic mediated lymphatic changes in meningeal lymphatics in vitro, ex vivo, and in vivo. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.01.06.574460. [PMID: 38260282 PMCID: PMC10802489 DOI: 10.1101/2024.01.06.574460] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/24/2024]
Abstract
Systemic chemotherapeutics target cancer cells but are also known to impact other cells away from the tumor. Questions remain whether systemic chemotherapy crosses the blood-brain barrier and causes inflammation in the periphery that impacts the central nervous system (CNS) downstream. The meningeal lymphatics are a critical component that drain cerebrospinal fluid from the CNS to the cervical lymph nodes for immunosurveillence. To develop new tools for understanding chemotherapy-mediated effects on the meningeal lymphatics, we present two novel models that examine cellular and tissue level changes. Our in vitro tissue engineered model of a meningeal lymphatic vessel lumen, using a simple tissue culture insert system with both lymphatic endothelial and meningeal cells, examines cell disruption. Our ex vivo model culturing mouse meningeal layers probes structural changes and remodeling, correlating to an explant tissue level. To gain a holistic understanding, we compare our in vitro and ex vivo models to in vivo studies for validation and a three-tier methodology for examining the chemotherapeutic response of the meningeal lymphatics. We have demonstrated that the meningeal lymphatics can be disrupted by systemic chemotherapy but show differential responses to platinum and taxane chemotherapies, emphasizing the need for further study of off-target impacts in the CNS.
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12
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Pan S, Koleske JP, Koller GM, Halupnik GL, Alli AHO, Koneru S, DeFreitas D, Ramagiri S, Strahle JM. Postnatal meningeal CSF transport is primarily mediated by the arachnoid and pia maters and is not altered after intraventricular hemorrhage-posthemorrhagic hydrocephalus. Fluids Barriers CNS 2024; 21:4. [PMID: 38191402 PMCID: PMC10773070 DOI: 10.1186/s12987-023-00503-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Accepted: 12/12/2023] [Indexed: 01/10/2024] Open
Abstract
BACKGROUND CSF has long been accepted to circulate throughout the subarachnoid space, which lies between the arachnoid and pia maters of the meninges. How the CSF interacts with the cellular components of the developing postnatal meninges including the dura, arachnoid, and pia of both the meninges at the surface of the brain and the intracranial meninges, prior to its eventual efflux from the cranium and spine, is less understood. Here, we characterize small and large CSF solute distribution patterns along the intracranial and surface meninges in neonatal rodents and compare our findings to meningeal CSF solute distribution in a rodent model of intraventricular hemorrhage-posthemorrhagic hydrocephalus. We also examine CSF solute interactions with the tela choroidea and its pial invaginations into the choroid plexuses of the lateral, third, and fourth ventricles. METHODS 1.9-nm gold nanoparticles, 15-nm gold nanoparticles, or 3 kDa Red Dextran Tetramethylrhodamine constituted in aCSF were infused into the right lateral ventricle of P7 rats to track CSF circulation. 10 min post-1.9-nm gold nanoparticle and Red Dextran Tetramethylrhodamine injection and 4 h post-15-nm gold nanoparticle injection, animals were sacrificed and brains harvested for histologic analysis to identify CSF tracer localization in the cranial and spine meninges and choroid plexus. Spinal dura and leptomeninges (arachnoid and pia) wholemounts were also evaluated. RESULTS There was significantly less CSF tracer distribution in the dura compared to the arachnoid and pia maters in neonatal rodents. Both small and large CSF tracers were transported intracranially to the arachnoid and pia mater of the perimesencephalic cisterns and tela choroidea, but not the falx cerebri. CSF tracers followed a similar distribution pattern in the spinal meninges. In the choroid plexus, there was large CSF tracer distribution in the apical surface of epithelial cells, and small CSF tracer along the basolateral surface. There were no significant differences in tracer intensity in the intracranial meninges of control vs. intraventricular hemorrhage-posthemorrhagic hydrocephalus (PHH) rodents, indicating preserved meningeal transport in the setting of PHH. CONCLUSIONS Differential CSF tracer handling by the meninges suggests that there are distinct roles for CSF handling between the arachnoid-pia and dura maters in the developing brain. Similarly, differences in apical vs. luminal choroid plexus CSF handling may provide insight into particle-size dependent CSF transport at the CSF-choroid plexus border.
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Affiliation(s)
- Shelei Pan
- Department of Neurosurgery, Washington University School of Medicine, Washington University in St. Louis, St. Louis, MO, 63110, USA
| | - Joshua P Koleske
- Department of Neurosurgery, Washington University School of Medicine, Washington University in St. Louis, St. Louis, MO, 63110, USA
| | - Gretchen M Koller
- Department of Neurosurgery, Washington University School of Medicine, Washington University in St. Louis, St. Louis, MO, 63110, USA
| | - Grace L Halupnik
- Department of Neurosurgery, Washington University School of Medicine, Washington University in St. Louis, St. Louis, MO, 63110, USA
| | - Abdul-Haq O Alli
- Department of Neurosurgery, Washington University School of Medicine, Washington University in St. Louis, St. Louis, MO, 63110, USA
| | - Shriya Koneru
- Department of Neurosurgery, Washington University School of Medicine, Washington University in St. Louis, St. Louis, MO, 63110, USA
| | - Dakota DeFreitas
- Department of Neurosurgery, Washington University School of Medicine, Washington University in St. Louis, St. Louis, MO, 63110, USA
| | - Sruthi Ramagiri
- Department of Neurosurgery, Washington University School of Medicine, Washington University in St. Louis, St. Louis, MO, 63110, USA
| | - Jennifer M Strahle
- Department of Neurosurgery, Washington University School of Medicine, Washington University in St. Louis, St. Louis, MO, 63110, USA.
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13
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Kiziltug E, Duy PQ, Allington G, Timberlake AT, Kawaguchi R, Long AS, Almeida MN, DiLuna ML, Alper SL, Alperovich M, Geschwind DH, Kahle KT. Concurrent impact of de novo mutations on cranial and cortical development in nonsyndromic craniosynostosis. J Neurosurg Pediatr 2024; 33:59-72. [PMID: 37890181 PMCID: PMC10783441 DOI: 10.3171/2023.8.peds23155] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Accepted: 08/17/2023] [Indexed: 10/29/2023]
Abstract
OBJECTIVE Nonsyndromic craniosynostosis (nsCS), characterized by premature cranial suture fusion, is considered a primary skull disorder in which impact on neurodevelopment, if present, results from the mechanical hindrance of brain growth. Despite surgical repair of the cranial defect, neurocognitive deficits persist in nearly half of affected children. Therefore, the authors performed a functional genomics analysis of nsCS to determine when, where, and in what cell types nsCS-associated genes converge during development. METHODS The authors integrated whole-exome sequencing data from 291 nsCS proband-parent trios with 29,803 single-cell transcriptomes of the prenatal and postnatal neurocranial complex to inform when, where, and in what cell types nsCS-mutated genes might exert their pathophysiological effects. RESULTS The authors found that nsCS-mutated genes converged in cranial osteoprogenitors and pial fibroblasts and their transcriptional networks that regulate both skull ossification and cerebral neurogenesis. Nonsyndromic CS-mutated genes also converged in inhibitory neurons and gene coexpression modules that overlapped with autism and other developmental disorders. Ligand-receptor cell-cell communication analysis uncovered crosstalk between suture osteoblasts and neurons via the nsCS-associated BMP, FGF, and noncanonical WNT signaling pathways. CONCLUSIONS These data implicate a concurrent impact of nsCS-associated de novo mutations on cranial morphogenesis and cortical development via cell- and non-cell-autonomous mechanisms in a developmental nexus of fetal osteoblasts, pial fibroblasts, and neurons. These results suggest that neurodevelopmental outcomes in nsCS patients may be driven more by mutational status than surgical technique.
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Affiliation(s)
- Emre Kiziltug
- Department of Neurosurgery, Yale University School of Medicine, New Haven, Connecticut
| | - Phan Q. Duy
- Department of Neurosurgery, University of Virginia School of Medicine, Charlottesville, Virginia
| | - Garrett Allington
- Department of Neurosurgery, Yale University School of Medicine, New Haven, Connecticut
| | - Andrew T. Timberlake
- Hansjörg Wyss Department of Plastic Surgery, New York University Langone Medical Center, New York, New York
| | - Riki Kawaguchi
- Department of Human Genetics, David Geffen School of Medicine, University of California, Los Angeles, California
| | - Aaron S. Long
- Department of Surgery, Division of Plastic Surgery, Yale University School of Medicine, New Haven, Connecticut
| | - Mariana N. Almeida
- Department of Surgery, Division of Plastic Surgery, Yale University School of Medicine, New Haven, Connecticut
| | - Michael L. DiLuna
- Department of Neurosurgery, Yale University School of Medicine, New Haven, Connecticut
| | - Seth L. Alper
- Department of Medicine, Division of Nephrology and Vascular Biology Research Center, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts
| | - Michael Alperovich
- Department of Surgery, Division of Plastic Surgery, Yale University School of Medicine, New Haven, Connecticut
| | - Daniel H. Geschwind
- Department of Human Genetics, David Geffen School of Medicine, University of California, Los Angeles, California
| | - Kristopher T. Kahle
- Department of Neurosurgery, Massachusetts General Hospital, Boston, Massachusetts
- Broad Institute of MIT and Harvard, Cambridge, Massachusetts; and
- Harvard Center for Developmental Brain Disorders, Massachusetts General Hospital, Boston, Massachusetts
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14
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Jones HE, Robertson GL, Romero-Morales A, O’Rourke R, Siegenthaler JA, Gama V. Leptomeningeal Neural Organoid (LMNO) Fusions as Models to Study Meninges-Brain Signaling. RESEARCH SQUARE 2023:rs.3.rs-3694849. [PMID: 38168409 PMCID: PMC10760226 DOI: 10.21203/rs.3.rs-3694849/v1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/05/2024]
Abstract
Neural organoids derived from human induced pluripotent stem cells (iPSCs) provide a model to study the earliest stages of human brain development, including neurogenesis, neural differentiation, and synaptogenesis. However, neural organoids lack supportive tissues and some non-neural cell types that are key regulators of brain development. Neural organoids have instead been co-cultured with non-neural structures and cell types to promote their maturation and model interactions with neuronal cells. One structure that does not form de novo with neural organoids is the meninges, a tri-layered structure that surrounds the CNS and secretes key signaling molecules required for mammalian brain development. Most studies of meninges-brain signaling have been performed in mice or using two-dimensional (2D) cultures of human cells, the latter not recapitulating the architecture and cellular diversity of the tissue. To overcome this, we developed a co-culture system of neural organoids generated from human iPSCs fused with fetal leptomeninges from mice with fluorescently labeled meninges (Col1a1-GFP). These proof-of-concept studies test the stability of the different cell types in the leptomeninges (fibroblast and macrophage) and the fused brain organoid (progenitor and neuron), as well as the interface between the organoid and meningeal tissue. We test the longevity of the fusion pieces after 30 days and 60 days in culture, describe best practices for preparing the meninges sample prior to fusion, and examine the feasibility of single or multiple meninges pieces fused to a single organoid. We discuss potential uses of the current version of the LMNO fusion model and opportunities to improve the system.
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Affiliation(s)
- Hannah E Jones
- University of Colorado Anschutz Medical Campus, Department of Pediatrics, Section of Developmental Biology, Aurora, CO 80045 USA
- University of Colorado Anschutz Medical Campus, Cell Biology, Stem Cells and Development Graduate Program, Aurora, CO 80045 USA
| | - Gabriella L Robertson
- Vanderbilt University School of Medicine, Department of Cell and Developmental Biology, Nashville, TN 37232 USA
| | - Alejandra Romero-Morales
- Vanderbilt University School of Medicine, Department of Cell and Developmental Biology, Nashville, TN 37232 USA
| | - Rebecca O’Rourke
- University of Colorado Anschutz Medical Campus, Department of Pediatrics, Section of Developmental Biology, Aurora, CO 80045 USA
| | - Julie A Siegenthaler
- University of Colorado Anschutz Medical Campus, Department of Pediatrics, Section of Developmental Biology, Aurora, CO 80045 USA
- University of Colorado Anschutz Medical Campus, Cell Biology, Stem Cells and Development Graduate Program, Aurora, CO 80045 USA
| | - Vivian Gama
- Vanderbilt University School of Medicine, Department of Cell and Developmental Biology, Nashville, TN 37232 USA
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15
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Gerschenfeld G, Coulpier F, Gresset A, Pulh P, Job B, Topilko T, Siegenthaler J, Kastriti ME, Brunet I, Charnay P, Topilko P. Neural tube-associated boundary caps are a major source of mural cells in the skin. eLife 2023; 12:e69413. [PMID: 38095361 PMCID: PMC10786459 DOI: 10.7554/elife.69413] [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: 04/14/2021] [Accepted: 12/12/2023] [Indexed: 01/13/2024] Open
Abstract
In addition to their roles in protecting nerves and increasing conduction velocity, peripheral glia plays key functions in blood vessel development by secreting molecules governing arteries alignment and maturation with nerves. Here, we show in mice that a specific, nerve-attached cell population, derived from boundary caps (BCs), constitutes a major source of mural cells for the developing skin vasculature. Using Cre-based reporter cell tracing and single-cell transcriptomics, we show that BC derivatives migrate into the skin along the nerves, detach from them, and differentiate into pericytes and vascular smooth muscle cells. Genetic ablation of this population affects the organization of the skin vascular network. Our results reveal the heterogeneity and extended potential of the BC population in mice, which gives rise to mural cells, in addition to previously described neurons, Schwann cells, and melanocytes. Finally, our results suggest that mural specification of BC derivatives takes place before their migration along nerves to the mouse skin.
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Affiliation(s)
- Gaspard Gerschenfeld
- Institut de Biologie de l'Ecole normale supérieure (IBENS), Ecole normale supérieure, CNRS, Inserm, Université PSLParisFrance
- Sorbonne Université, Collège DoctoralParisFrance
| | - Fanny Coulpier
- Institut de Biologie de l'Ecole normale supérieure (IBENS), Ecole normale supérieure, CNRS, Inserm, Université PSLParisFrance
- nstitut Mondor de Recherche Biomédicale, Inserm U955-Team 9CréteilFrance
- Genomic facility, Ecole normale supérieure, PSL Research University, CNRS, Inserm, Institut de Biologie de l'Ecole normale supérieure (IBENS)ParisFrance
| | - Aurélie Gresset
- Institut de Biologie de l'Ecole normale supérieure (IBENS), Ecole normale supérieure, CNRS, Inserm, Université PSLParisFrance
| | - Pernelle Pulh
- Institut de Biologie de l'Ecole normale supérieure (IBENS), Ecole normale supérieure, CNRS, Inserm, Université PSLParisFrance
- nstitut Mondor de Recherche Biomédicale, Inserm U955-Team 9CréteilFrance
| | - Bastien Job
- Inserm US23, AMMICA, Institut Gustave RoussyVillejuifFrance
| | - Thomas Topilko
- Laboratoire de Plasticité Structurale, Sorbonne Université, ICM Institut du Cerveau et de la Moelle Epinière, Inserm U1127, CNRS UMR7225ParisFrance
| | - Julie Siegenthaler
- Department of Pediatrics Section of Developmental Biology, University of Colorado Anschutz Medical CampusAuroraUnited States
| | - Maria Eleni Kastriti
- Department of Physiology and Pharmacology, Karolinska InstitutetStockholmSweden
- Department of Neuroimmunology, Center for Brain Research, Medical University ViennaViennaAustria
| | - Isabelle Brunet
- Inserm U1050, Centre Interdisciplinaire de Recherche en Biologie (CIRB), Collège de FranceParisFrance
| | - Patrick Charnay
- Institut de Biologie de l'Ecole normale supérieure (IBENS), Ecole normale supérieure, CNRS, Inserm, Université PSLParisFrance
| | - Piotr Topilko
- Institut de Biologie de l'Ecole normale supérieure (IBENS), Ecole normale supérieure, CNRS, Inserm, Université PSLParisFrance
- nstitut Mondor de Recherche Biomédicale, Inserm U955-Team 9CréteilFrance
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16
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Pietilä R, Del Gaudio F, He L, Vázquez-Liébanas E, Vanlandewijck M, Muhl L, Mocci G, Bjørnholm KD, Lindblad C, Fletcher-Sandersjöö A, Svensson M, Thelin EP, Liu J, van Voorden AJ, Torres M, Antila S, Xin L, Karlström H, Storm-Mathisen J, Bergersen LH, Moggio A, Hansson EM, Ulvmar MH, Nilsson P, Mäkinen T, Andaloussi Mäe M, Alitalo K, Proulx ST, Engelhardt B, McDonald DM, Lendahl U, Andrae J, Betsholtz C. Molecular anatomy of adult mouse leptomeninges. Neuron 2023; 111:3745-3764.e7. [PMID: 37776854 DOI: 10.1016/j.neuron.2023.09.002] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2022] [Revised: 07/07/2023] [Accepted: 09/05/2023] [Indexed: 10/02/2023]
Abstract
Leptomeninges, consisting of the pia mater and arachnoid, form a connective tissue investment and barrier enclosure of the brain. The exact nature of leptomeningeal cells has long been debated. In this study, we identify five molecularly distinct fibroblast-like transcriptomes in cerebral leptomeninges; link them to anatomically distinct cell types of the pia, inner arachnoid, outer arachnoid barrier, and dural border layer; and contrast them to a sixth fibroblast-like transcriptome present in the choroid plexus and median eminence. Newly identified transcriptional markers enabled molecular characterization of cell types responsible for adherence of arachnoid layers to one another and for the arachnoid barrier. These markers also proved useful in identifying the molecular features of leptomeningeal development, injury, and repair that were preserved or changed after traumatic brain injury. Together, the findings highlight the value of identifying fibroblast transcriptional subsets and their cellular locations toward advancing the understanding of leptomeningeal physiology and pathology.
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Affiliation(s)
- Riikka Pietilä
- Department of Immunology, Genetics and Pathology, Rudbeck Laboratory, Uppsala University, 75185 Uppsala, Sweden
| | - Francesca Del Gaudio
- Department of Medicine Huddinge, Karolinska Institutet, 14157 Huddinge, Sweden; Department of Cell and Molecular Biology, Karolinska Institutet, 17177 Stockholm, Sweden
| | - Liqun He
- Department of Immunology, Genetics and Pathology, Rudbeck Laboratory, Uppsala University, 75185 Uppsala, Sweden
| | - Elisa Vázquez-Liébanas
- Department of Immunology, Genetics and Pathology, Rudbeck Laboratory, Uppsala University, 75185 Uppsala, Sweden
| | - Michael Vanlandewijck
- Department of Immunology, Genetics and Pathology, Rudbeck Laboratory, Uppsala University, 75185 Uppsala, Sweden; Department of Medicine Huddinge, Karolinska Institutet, 14157 Huddinge, Sweden
| | - Lars Muhl
- Department of Medicine Huddinge, Karolinska Institutet, 14157 Huddinge, Sweden
| | - Giuseppe Mocci
- Department of Medicine Huddinge, Karolinska Institutet, 14157 Huddinge, Sweden
| | - Katrine D Bjørnholm
- Department of Neurobiology, Care Sciences and Society, Division of Neurogeriatrics, Center for Alzheimer Research, Karolinska Institutet, 17177 Stockholm, Sweden
| | - Caroline Lindblad
- Department of Clinical Neuroscience, Karolinska Institutet, 17177 Stockholm, Sweden; Department of Neurosurgery, Uppsala University Hospital, 75185 Uppsala, Sweden; Department of Medical Sciences, Uppsala University, 75185 Uppsala, Sweden
| | - Alexander Fletcher-Sandersjöö
- Department of Clinical Neuroscience, Karolinska Institutet, 17177 Stockholm, Sweden; Department of Neurosurgery, Karolinska University Hospital, 17176 Stockholm, Sweden
| | - Mikael Svensson
- Department of Clinical Neuroscience, Karolinska Institutet, 17177 Stockholm, Sweden; Department of Neurology, Karolinska University Hospital, 17176 Stockholm, Sweden
| | - Eric P Thelin
- Department of Clinical Neuroscience, Karolinska Institutet, 17177 Stockholm, Sweden; Department of Neurology, Karolinska University Hospital, 17176 Stockholm, Sweden
| | - Jianping Liu
- Department of Medicine Huddinge, Karolinska Institutet, 14157 Huddinge, Sweden
| | - A Jantine van Voorden
- Department of Immunology, Genetics and Pathology, Rudbeck Laboratory, Uppsala University, 75185 Uppsala, Sweden
| | - Monica Torres
- Department of Immunology, Genetics and Pathology, Rudbeck Laboratory, Uppsala University, 75185 Uppsala, Sweden
| | - Salli Antila
- Wihuri Research Institute and Translational Cancer Medicine Program, University of Helsinki, 00014 Helsinki, Finland
| | - Li Xin
- Theodor Kocher Institute, University of Bern, 3012 Bern, Switzerland
| | - Helena Karlström
- Department of Neurobiology, Care Sciences and Society, Division of Neurogeriatrics, Center for Alzheimer Research, Karolinska Institutet, 17177 Stockholm, Sweden
| | - Jon Storm-Mathisen
- Division of Anatomy, Department of Molecular Medicine, Institute of Basic Medical Sciences, University of Oslo, 0317 Oslo, Norway
| | - Linda Hildegard Bergersen
- Brain and Muscle Energy Group, Institute of Oral Biology, University of Oslo, 0316 Oslo, Norway; Center for Healthy Aging, Copenhagen University, 2200 Copenhagen, Denmark
| | - Aldo Moggio
- Department of Cell and Molecular Biology, Karolinska Institutet, 17177 Stockholm, Sweden
| | - Emil M Hansson
- Department of Cell and Molecular Biology, Karolinska Institutet, 17177 Stockholm, Sweden
| | - Maria H Ulvmar
- Department of Medical Biochemistry and Microbiology, Uppsala University, 75123 Uppsala, Sweden
| | - Per Nilsson
- Department of Neurobiology, Care Sciences and Society, Division of Neurogeriatrics, Center for Alzheimer Research, Karolinska Institutet, 17177 Stockholm, Sweden
| | - Taija Mäkinen
- Department of Immunology, Genetics and Pathology, Rudbeck Laboratory, Uppsala University, 75185 Uppsala, Sweden
| | - Maarja Andaloussi Mäe
- Department of Immunology, Genetics and Pathology, Rudbeck Laboratory, Uppsala University, 75185 Uppsala, Sweden
| | - Kari Alitalo
- Wihuri Research Institute and Translational Cancer Medicine Program, University of Helsinki, 00014 Helsinki, Finland
| | - Steven T Proulx
- Theodor Kocher Institute, University of Bern, 3012 Bern, Switzerland
| | - Britta Engelhardt
- Theodor Kocher Institute, University of Bern, 3012 Bern, Switzerland
| | - Donald M McDonald
- Cardiovascular Research Institute, UCSF Helen Diller Family Comprehensive Cancer Center, and Department of Anatomy, University of California, San Francisco, San Francisco, CA 94143, USA
| | - Urban Lendahl
- Department of Cell and Molecular Biology, Karolinska Institutet, 17177 Stockholm, Sweden
| | - Johanna Andrae
- Department of Immunology, Genetics and Pathology, Rudbeck Laboratory, Uppsala University, 75185 Uppsala, Sweden
| | - Christer Betsholtz
- Department of Immunology, Genetics and Pathology, Rudbeck Laboratory, Uppsala University, 75185 Uppsala, Sweden; Department of Medicine Huddinge, Karolinska Institutet, 14157 Huddinge, Sweden.
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17
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Jones HE, Robertson GL, Romero-Morales A, O’Rourke R, Siegenthaler JA, Gama V. Leptomeningeal Neural Organoid (LMNO) Fusions as Models to Study Meninges-Brain Signaling. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.12.01.569648. [PMID: 38077064 PMCID: PMC10705555 DOI: 10.1101/2023.12.01.569648] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/17/2023]
Abstract
Neural organoids derived from human induced pluripotent stem cells (iPSCs) provide a model to study the earliest stages of human brain development, including neurogenesis, neural differentiation, and synaptogenesis. However, neural organoids lack supportive tissues and some non-neural cell types that are key regulators of brain development. Neural organoids have instead been co-cultured with non-neural structures and cell types to promote their maturation and model interactions with neuronal cells. One structure that does not form de novo with neural organoids is the meninges, a tri-layered structure that surrounds the CNS and secretes key signaling molecules required for mammalian brain development. Most studies of meninges-brain signaling have been performed in mice or using two-dimensional (2D) cultures of human cells, the latter not recapitulating the architecture and cellular diversity of the tissue. To overcome this, we developed a co-culture system of neural organoids generated from human iPSCs fused with fetal leptomeninges from mice with fluorescently labeled meninges (Col1a1-GFP). These proof-of-concept studies test the stability of the different cell types in the leptomeninges (fibroblast and macrophage) and the fused brain organoid (progenitor and neuron), as well as the interface between the organoid and meningeal tissue. We test the longevity of the fusion pieces after 30 days and 60 days in culture, describe best practices for preparing the meninges sample prior to fusion, and examine the feasibility of single or multiple meninges pieces fused to a single organoid. We discuss potential uses of the current version of the LMNO fusion model and opportunities to improve the system.
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Affiliation(s)
- Hannah E Jones
- University of Colorado Anschutz Medical Campus, Department of Pediatrics, Section of Developmental Biology, Aurora, CO 80045 USA
- University of Colorado Anschutz Medical Campus, Cell Biology, Stem Cells and Development Graduate Program, Aurora, CO 80045 USA
| | - Gabriella L Robertson
- Vanderbilt University School of Medicine, Department of Cell and Developmental Biology, Nashville, TN 37232 USA
| | - Alejandra Romero-Morales
- Vanderbilt University School of Medicine, Department of Cell and Developmental Biology, Nashville, TN 37232 USA
| | - Rebecca O’Rourke
- University of Colorado Anschutz Medical Campus, Department of Pediatrics, Section of Developmental Biology, Aurora, CO 80045 USA
| | - Julie A Siegenthaler
- University of Colorado Anschutz Medical Campus, Department of Pediatrics, Section of Developmental Biology, Aurora, CO 80045 USA
- University of Colorado Anschutz Medical Campus, Cell Biology, Stem Cells and Development Graduate Program, Aurora, CO 80045 USA
| | - Vivian Gama
- Vanderbilt University School of Medicine, Department of Cell and Developmental Biology, Nashville, TN 37232 USA
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18
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Kearns NA, Iatrou A, Flood DJ, De Tissera S, Mullaney ZM, Xu J, Gaiteri C, Bennett DA, Wang Y. Dissecting the human leptomeninges at single-cell resolution. Nat Commun 2023; 14:7036. [PMID: 37923721 PMCID: PMC10624900 DOI: 10.1038/s41467-023-42825-y] [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: 02/02/2023] [Accepted: 10/23/2023] [Indexed: 11/06/2023] Open
Abstract
Emerging evidence shows that the meninges conduct essential immune surveillance and immune defense at the brain border, and the dysfunction of meningeal immunity contributes to aging and neurodegeneration. However, no study exists on the molecular properties of cell types within human leptomeninges. Here, we provide single nuclei profiling of dissected postmortem leptomeninges from aged individuals. We detect diverse cell types, including unique meningeal endothelial, mural, and fibroblast subtypes. For immune cells, we show that most T cells express CD8 and bear characteristics of tissue-resident memory T cells. We also identify distinct subtypes of border-associated macrophages (BAMs) that display differential gene expressions from microglia and express risk genes for Alzheimer's Disease (AD), as nominated by genome-wide association studies (GWAS). We discover cell-type-specific differentially expressed genes in individuals with Alzheimer's dementia, particularly in fibroblasts and BAMs. Indeed, when cultured, leptomeningeal cells display the signature of ex vivo AD fibroblasts upon amyloid-β treatment. We further explore ligand-receptor interactions within the leptomeningeal niche and computationally infer intercellular communications in AD. Thus, our study establishes a molecular map of human leptomeningeal cell types, providing significant insight into the border immune and fibrotic responses in AD.
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Affiliation(s)
- Nicola A Kearns
- Rush Alzheimer's Disease Center, Rush University Medical Center, Chicago, IL, 60612, USA
| | - Artemis Iatrou
- Rush Alzheimer's Disease Center, Rush University Medical Center, Chicago, IL, 60612, USA
- Department of Psychiatry, McLean Hospital, Harvard Medical School, Belmont, MA, 02478, USA
| | - Daniel J Flood
- Rush Alzheimer's Disease Center, Rush University Medical Center, Chicago, IL, 60612, USA
| | - Sashini De Tissera
- Rush Alzheimer's Disease Center, Rush University Medical Center, Chicago, IL, 60612, USA
| | - Zachary M Mullaney
- Rush Alzheimer's Disease Center, Rush University Medical Center, Chicago, IL, 60612, USA
| | - Jishu Xu
- Rush Alzheimer's Disease Center, Rush University Medical Center, Chicago, IL, 60612, USA
| | - Chris Gaiteri
- Rush Alzheimer's Disease Center, Rush University Medical Center, Chicago, IL, 60612, USA
- Department of Psychiatry, Upstate Medical University, Syracuse, NY, 13210, USA
| | - David A Bennett
- Rush Alzheimer's Disease Center, Rush University Medical Center, Chicago, IL, 60612, USA
| | - Yanling Wang
- Rush Alzheimer's Disease Center, Rush University Medical Center, Chicago, IL, 60612, USA.
- Department of Neurological Sciences, Rush University Medical Center, Chicago, IL, 60612, USA.
- Rush Graduate College, Rush University, Chicago IL, 60612, USA.
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19
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Quintana JF, Sinton MC, Chandrasegaran P, Kumar Dubey L, Ogunsola J, Al Samman M, Haley M, McConnell G, Kuispond Swar NR, Ngoyi DM, Bending D, de Lecea L, MacLeod A, Mabbott NA. The murine meninges acquire lymphoid tissue properties and harbour autoreactive B cells during chronic Trypanosoma brucei infection. PLoS Biol 2023; 21:e3002389. [PMID: 37983289 PMCID: PMC10723712 DOI: 10.1371/journal.pbio.3002389] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Revised: 12/15/2023] [Accepted: 10/17/2023] [Indexed: 11/22/2023] Open
Abstract
The meningeal space is a critical brain structure providing immunosurveillance for the central nervous system (CNS), but the impact of infections on the meningeal immune landscape is far from being fully understood. The extracellular protozoan parasite Trypanosoma brucei, which causes human African trypanosomiasis (HAT) or sleeping sickness, accumulates in the meningeal spaces, ultimately inducing severe meningitis and resulting in death if left untreated. Thus, sleeping sickness represents an attractive model to study immunological dynamics in the meninges during infection. Here, by combining single-cell transcriptomics and mass cytometry by time-of-flight (CyTOF) with in vivo interventions, we found that chronic T. brucei infection triggers the development of ectopic lymphoid aggregates (ELAs) in the murine meninges. These infection-induced ELAs were defined by the presence of ER-TR7+ fibroblastic reticular cells, CD21/35+ follicular dendritic cells (FDCs), CXCR5+ PD1+ T follicular helper-like phenotype, GL7+ CD95+ GC-like B cells, and plasmablasts/plasma cells. Furthermore, the B cells found in the infected meninges produced high-affinity autoantibodies able to recognise mouse brain antigens, in a process dependent on LTβ signalling. A mid-throughput screening identified several host factors recognised by these autoantibodies, including myelin basic protein (MBP), coinciding with cortical demyelination and brain pathology. In humans, we identified the presence of autoreactive IgG antibodies in the cerebrospinal fluid (CSF) of second stage HAT patients that recognised human brain lysates and MBP, consistent with our findings in experimental infections. Lastly, we found that the pathological B cell responses we observed in the meninges required the presence of T. brucei in the CNS, as suramin treatment before the onset of the CNS stage prevented the accumulation of GL7+ CD95+ GC-like B cells and brain-specific autoantibody deposition. Taken together, our data provide evidence that the meningeal immune response during chronic T. brucei infection results in the acquisition of lymphoid tissue-like properties, broadening our understanding of meningeal immunity in the context of chronic infections. These findings have wider implications for understanding the mechanisms underlying the formation ELAs during chronic inflammation resulting in autoimmunity in mice and humans, as observed in other autoimmune neurodegenerative disorders, including neuropsychiatric lupus and multiple sclerosis.
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Affiliation(s)
- Juan F. Quintana
- Lydia Becker Institute of Immunology and Inflammation, University of Manchester, United Kingdom
- Division of Immunology, Immunity to Infection and Health, Manchester Academic Health Science Centre, University of Manchester, United Kingdom
- School of Biodiversity, One Health, Veterinary Medicine (SBOHVM), College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow United Kingdom
| | - Matthew C. Sinton
- Lydia Becker Institute of Immunology and Inflammation, University of Manchester, United Kingdom
- Division of Cardiovascular Sciences, University of Manchester, United Kingdom
| | - Praveena Chandrasegaran
- School of Biodiversity, One Health, Veterinary Medicine (SBOHVM), College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow United Kingdom
| | | | - John Ogunsola
- School of Biodiversity, One Health, Veterinary Medicine (SBOHVM), College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow United Kingdom
| | - Moumen Al Samman
- School of Biodiversity, One Health, Veterinary Medicine (SBOHVM), College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow United Kingdom
| | - Michael Haley
- Lydia Becker Institute of Immunology and Inflammation, University of Manchester, United Kingdom
- Division of Immunology, Immunity to Infection and Health, Manchester Academic Health Science Centre, University of Manchester, United Kingdom
| | - Gail McConnell
- Strathclyde Institute of Pharmacy and Biomedical Sciences (SIPBS), University of Strathclyde, Glasgow, United Kingdom
| | - Nono-Raymond Kuispond Swar
- Department of Parasitology, National Institute of Biomedical Research, Kinshasa, Democratic Republic of the Congo
| | - Dieudonné Mumba Ngoyi
- Department of Parasitology, National Institute of Biomedical Research, Kinshasa, Democratic Republic of the Congo
| | - David Bending
- Institute of Immunology and Immunotherapy, College of Medical and Dental Sciences, University of Birmingham, Birmingham, United Kingdom
| | - Luis de Lecea
- Stanford University School of Medicine, Stanford, California, United States of America
| | - Annette MacLeod
- School of Biodiversity, One Health, Veterinary Medicine (SBOHVM), College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow United Kingdom
| | - Neil A. Mabbott
- The Roslin Institute and Royal (Dick) School of Veterinary Studies, University of Edinburgh, Edinburgh, United Kingdom
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20
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Zarodniuk M, Steele A, Lu X, Li J, Datta M. CNS tumor stroma transcriptomics identify perivascular fibroblasts as predictors of immunotherapy resistance in glioblastoma patients. NPJ Genom Med 2023; 8:35. [PMID: 37884531 PMCID: PMC10603041 DOI: 10.1038/s41525-023-00381-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Accepted: 10/10/2023] [Indexed: 10/28/2023] Open
Abstract
Excessive deposition of extracellular matrix (ECM) is a hallmark of solid tumors; however, it remains poorly understood which cellular and molecular components contribute to the formation of ECM stroma in central nervous system (CNS) tumors. Here, we undertake a pan-CNS analysis of retrospective gene expression datasets to characterize inter- and intra-tumoral heterogeneity of ECM remodeling signatures in both adult and pediatric CNS disease. We find that CNS lesions - glioblastoma in particular - can be divided into two ECM-based subtypes (ECMhi and ECMlo) that are influenced by the presence of perivascular stromal cells resembling cancer-associated fibroblasts (CAFs). Ligand-receptor network analysis predicts that perivascular fibroblasts activate signaling pathways responsible for recruitment of tumor-associated macrophages and promotion of cancer stemness. Our analysis reveals that perivascular fibroblasts are correlated with unfavorable response to immune checkpoint blockade in glioblastoma and poor patient survival across a subset of CNS tumors. We provide insights into new stroma-driven mechanisms underlying immune evasion and immunotherapy resistance in CNS tumors like glioblastoma, and discuss how targeting these perivascular fibroblasts may prove an effective approach to improving treatment response and patient survival in a variety of CNS tumors.
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Affiliation(s)
- Maksym Zarodniuk
- Department of Aerospace and Mechanical Engineering, University of Notre Dame, Notre Dame, IN, USA
| | - Alexander Steele
- Department of Electrical Engineering, University of Notre Dame, Notre Dame, IN, USA
| | - Xin Lu
- Department of Biological Sciences, University of Notre Dame, Notre Dame, IN, USA
| | - Jun Li
- Department of Applied and Computational Mathematics and Statistics, University of Notre Dame, Notre Dame, IN, USA
| | - Meenal Datta
- Department of Aerospace and Mechanical Engineering, University of Notre Dame, Notre Dame, IN, USA.
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21
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Pokrajac NT, Tokarew NJA, Gurdita A, Ortin-Martinez A, Wallace VA. Meningeal macrophages inhibit chemokine signaling in pre-tumor cells to suppress mouse medulloblastoma initiation. Dev Cell 2023; 58:2015-2031.e8. [PMID: 37774709 DOI: 10.1016/j.devcel.2023.08.033] [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: 03/10/2023] [Revised: 07/10/2023] [Accepted: 08/30/2023] [Indexed: 10/01/2023]
Abstract
The microenvironment profoundly influences tumor initiation across numerous tissues but remains understudied in brain tumors. In the cerebellum, canonical Wnt signaling controlled by Norrin/Frizzled4 (Fzd4) activation in meningeal endothelial cells is a potent inhibitor of preneoplasia and tumor progression in mouse models of Sonic hedgehog medulloblastoma (Shh-MB). Single-cell transcriptome profiling and phenotyping of the meninges indicate that Norrin/Frizzled4 sustains the activation of meningeal macrophages (mMΦs), characterized by Lyve1 and CXCL4 expression, during the critical preneoplastic period. Depleting mMΦs during this period enhances preneoplasia and tumorigenesis, phenocopying the effects of Norrin loss. The anti-tumorigenic function of mMΦs is derived from the expression of CXCL4, which counters CXCL12/CXCR4 signaling in pre-tumor cells, thereby inhibiting cell-cycle progression and promoting migration away from the pre-tumor niche. These findings identify a pivotal role for mMΦs as key mediators in chemokine-regulated anti-cancer crosstalk between the stroma and pre-tumor cells in the control of MB initiation.
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Affiliation(s)
- Nenad T Pokrajac
- Donald K. Johnson Eye Institute, Krembil Research Institute, University Health Network, Toronto, ON M5T 2S8, Canada; Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON M5S 1A8, Canada
| | - Nicholas J A Tokarew
- Donald K. Johnson Eye Institute, Krembil Research Institute, University Health Network, Toronto, ON M5T 2S8, Canada
| | - Akshay Gurdita
- Donald K. Johnson Eye Institute, Krembil Research Institute, University Health Network, Toronto, ON M5T 2S8, Canada; Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON M5S 1A8, Canada
| | - Arturo Ortin-Martinez
- Donald K. Johnson Eye Institute, Krembil Research Institute, University Health Network, Toronto, ON M5T 2S8, Canada; Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON M5S 1A8, Canada
| | - Valerie A Wallace
- Donald K. Johnson Eye Institute, Krembil Research Institute, University Health Network, Toronto, ON M5T 2S8, Canada; Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON M5S 1A8, Canada; Department of Ophthalmology and Vision Sciences, University of Toronto, Toronto, ON M5T 3A9, Canada.
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22
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Santorella E, Balsbaugh JL, Ge S, Saboori P, Baker D, Pachter JS. Proteomic interrogation of the meninges reveals the molecular identities of structural components and regional distinctions along the CNS axis. Fluids Barriers CNS 2023; 20:74. [PMID: 37858244 PMCID: PMC10588166 DOI: 10.1186/s12987-023-00473-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Accepted: 10/04/2023] [Indexed: 10/21/2023] Open
Abstract
The meninges surround the brain and spinal cord, affording physical protection while also serving as a niche of neuroimmune activity. Though possessing stromal qualities, its complex cellular and extracellular makeup has yet to be elaborated, and it remains unclear whether the meninges vary along the neuroaxis. Hence, studies were carried-out to elucidate the protein composition and structural organization of brain and spinal cord meninges in normal, adult Biozzi ABH mice. First, shotgun, bottom-up proteomics was carried-out. Prominent proteins at both brain and spinal levels included Type II collagen and Type II keratins, representing extracellular matrix (ECM) and cytoskeletal categories, respectively. While the vast majority of total proteins detected was shared between both meningeal locales, more were uniquely detected in brain than in spine. This pattern was also seen when total proteins were subdivided by cellular compartment, except in the case of the ECM category where brain and spinal meninges each had near equal number of unique proteins, and Type V and type III collagen registered exclusively in the spine. Quantitative analysis revealed differential expression of several collagens and cytoskeletal proteins between brain and spinal meninges. High-resolution immunofluorescence and immunogold-scanning electronmicroscopy on sections from whole brain and spinal cord - still encased within bone -identified major proteins detected by proteomics, and highlighted their association with cellular and extracellular elements of variously shaped arachnoid trabeculae. Western blotting aligned with the proteomic and immunohistological analyses, reinforcing differential appearance of proteins in brain vs spinal meninges. Results could reflect regional distinctions in meninges that govern protective and/or neuroimmune functions.
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Affiliation(s)
- Elise Santorella
- Department of Immunology, UConn Health, 263 Farmington Ave, Farmington, CT, 06030, USA
| | - Jeremy L Balsbaugh
- Proteomics and Metabolomics Facility, Center for Open Research Resources & Equipment, University of Connecticut, Storrs, CT, 06269, USA
| | - Shujun Ge
- Department of Immunology, UConn Health, 263 Farmington Ave, Farmington, CT, 06030, USA
| | - Parisa Saboori
- Department of Mechanical Engineering, Manhattan College, Bronx, NY, 10071, USA
| | - David Baker
- Blizard Institute, Queen Mary University of London, London, England
| | - Joel S Pachter
- Department of Immunology, UConn Health, 263 Farmington Ave, Farmington, CT, 06030, USA.
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23
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Li J, Shyr Y, Liu Q. Single-cell and Spatial Transcriptomics Clustering with an Optimized Adaptive K-Nearest Neighbor Graph. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.10.13.562261. [PMID: 37905097 PMCID: PMC10614787 DOI: 10.1101/2023.10.13.562261] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/02/2023]
Abstract
Single-cell and spatial transcriptomics have been widely used to characterize cellular landscape in complex tissues. To understand cellular heterogeneity, one essential step is to define cell types through unsupervised clustering. While typical clustering methods have difficulty in identifying rare cell types, approaches specifically tailored to detect rare cell types gain their ability at the cost of poorer performance for grouping abundant ones. Here, we developed aKNNO, a method to identify abundant and rare cell types simultaneously based on an adaptive k-nearest neighbor graph with optimization. Benchmarked on 38 simulated and 20 single-cell and spatial transcriptomics datasets, aKNNO identified both abundant and rare cell types accurately. Without sacrificing performance for clustering abundant cell types, aKNNO discovered known and novel rare cell types that those typical and even specifically tailored methods failed to detect. aKNNO, using transcriptome alone, stereotyped fine-grained anatomical structures more precisely than those integrative approaches combining expression with spatial locations and histology image.
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Affiliation(s)
- Jia Li
- Department of Biostatistics, Vanderbilt University Medical Center, Nashville, TN, 37203, USA
- Center for Quantitative Sciences, Vanderbilt University Medical Center, Nashville, TN, 37232, USA
| | - Yu Shyr
- Department of Biostatistics, Vanderbilt University Medical Center, Nashville, TN, 37203, USA
- Center for Quantitative Sciences, Vanderbilt University Medical Center, Nashville, TN, 37232, USA
| | - Qi Liu
- Department of Biostatistics, Vanderbilt University Medical Center, Nashville, TN, 37203, USA
- Center for Quantitative Sciences, Vanderbilt University Medical Center, Nashville, TN, 37232, USA
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24
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Li B, Li J, Fan Y, Zhao Z, Li L, Okano H, Ouchi T. Dissecting calvarial bones and sutures at single-cell resolution. Biol Rev Camb Philos Soc 2023; 98:1749-1767. [PMID: 37171117 DOI: 10.1111/brv.12975] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Revised: 04/26/2023] [Accepted: 04/27/2023] [Indexed: 05/13/2023]
Abstract
Cranial bones constitute a protective shield for the vulnerable brain tissue, bound together as a rigid entity by unique immovable joints known as sutures. Cranial sutures serve as major growth centres for calvarial morphogenesis and have been identified as a niche for mesenchymal stem cells (MSCs) and/or skeletal stem cells (SSCs) in the craniofacial skeleton. Despite the established dogma of cranial bone and suture biology, technological advancements now allow us to investigate these tissues and structures at unprecedented resolution and embrace multiple novel biological insights. For instance, a decrease or imbalance of representation of SSCs within sutures might underlie craniosynostosis; dural sinuses enable neuroimmune crosstalk and are newly defined as immune hubs; skull bone marrow acts as a myeloid cell reservoir for the meninges and central nervous system (CNS) parenchyma in mediating immune surveillance, etc. In this review, we revisit a growing body of recent studies that explored cranial bone and suture biology using cutting-edge techniques and have expanded our current understanding of this research field, especially from the perspective of development, homeostasis, injury repair, resident MSCs/SSCs, immunosurveillance at the brain's border, and beyond.
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Affiliation(s)
- Bo Li
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, 610041, China
| | - Jingya Li
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Head and Neck Oncology, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, 610041, China
| | - Yi Fan
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Cariology and Endodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, 610041, China
| | - Zhihe Zhao
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, 610041, China
| | - Longjiang Li
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Head and Neck Oncology, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, 610041, China
| | - Hideyuki Okano
- Department of Physiology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 1608582, Japan
- Laboratory for Marmoset Neural Architecture, RIKEN Center for Brain Science, Wako-shi, Saitama, 3510198, Japan
| | - Takehito Ouchi
- Department of Physiology, Tokyo Dental College, 2-9-18 Kanda-Misaki-cho, Chiyoda-ku, Tokyo, 1010061, Japan
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25
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Jones HE, Coelho-Santos V, Bonney SK, Abrams KA, Shih AY, Siegenthaler JA. Meningeal origins and dynamics of perivascular fibroblast development on the mouse cerebral vasculature. Development 2023; 150:dev201805. [PMID: 37756588 PMCID: PMC10565218 DOI: 10.1242/dev.201805] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Accepted: 09/12/2023] [Indexed: 09/29/2023]
Abstract
Perivascular fibroblasts (PVFs) are a fibroblast-like cell type that reside on large-diameter blood vessels in the adult meninges and central nervous system (CNS). PVFs contribute to fibrosis following injury but their homeostatic functions are not defined. PVFs were previously shown to be absent from most brain regions at birth and are only detected postnatally within the cerebral cortex. However, the origin, timing and cellular mechanisms of PVF development are not known. We used Col1a1-GFP and Col1a2-CreERT2 transgenic mice to track PVF development postnatally. Using lineage tracing and in vivo imaging we show that brain PVFs originate from the meninges and are first seen on parenchymal cerebrovasculature at postnatal day (P) 5. After P5, PVF coverage of the cerebrovasculature expands via local cell proliferation and migration from the meninges. Finally, we show that PVFs and perivascular macrophages develop concurrently. These findings provide the first complete timeline for PVF development in the brain, enabling future work into how PVF development is coordinated with cell types and structures in and around the perivascular spaces to support normal CNS vascular function.
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Affiliation(s)
- Hannah E. Jones
- Department of Pediatrics, Section of Developmental Biology, University of Colorado, Aurora, CO 80045, USA
- Cell Biology, Stem Cells and Development Graduate Program, University of Colorado, Aurora, CO 80045, USA
| | - Vanessa Coelho-Santos
- Center for Developmental Biology and Regenerative Medicine, Seattle Children's Research Institute, Seattle, WA 98101, USA
| | - Stephanie K. Bonney
- Center for Developmental Biology and Regenerative Medicine, Seattle Children's Research Institute, Seattle, WA 98101, USA
| | - Kelsey A. Abrams
- Department of Pediatrics, Section of Developmental Biology, University of Colorado, Aurora, CO 80045, USA
- Cell Biology, Stem Cells and Development Graduate Program, University of Colorado, Aurora, CO 80045, USA
| | - Andy Y. Shih
- Center for Developmental Biology and Regenerative Medicine, Seattle Children's Research Institute, Seattle, WA 98101, USA
- Department of Bioengineering, University of Washington, Seattle, WA 98195, USA
- Department of Pediatrics, University of Washington, Seattle, WA 98105, USA
| | - Julie A. Siegenthaler
- Department of Pediatrics, Section of Developmental Biology, University of Colorado, Aurora, CO 80045, USA
- Cell Biology, Stem Cells and Development Graduate Program, University of Colorado, Aurora, CO 80045, USA
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26
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Mapunda JA, Pareja J, Vladymyrov M, Bouillet E, Hélie P, Pleskač P, Barcos S, Andrae J, Vestweber D, McDonald DM, Betsholtz C, Deutsch U, Proulx ST, Engelhardt B. VE-cadherin in arachnoid and pia mater cells serves as a suitable landmark for in vivo imaging of CNS immune surveillance and inflammation. Nat Commun 2023; 14:5837. [PMID: 37730744 PMCID: PMC10511632 DOI: 10.1038/s41467-023-41580-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2022] [Accepted: 09/01/2023] [Indexed: 09/22/2023] Open
Abstract
Meninges cover the surface of the brain and spinal cord and contribute to protection and immune surveillance of the central nervous system (CNS). How the meningeal layers establish CNS compartments with different accessibility to immune cells and immune mediators is, however, not well understood. Here, using 2-photon imaging in female transgenic reporter mice, we describe VE-cadherin at intercellular junctions of arachnoid and pia mater cells that form the leptomeninges and border the subarachnoid space (SAS) filled with cerebrospinal fluid (CSF). VE-cadherin expression also marked a layer of Prox1+ cells located within the arachnoid beneath and separate from E-cadherin+ arachnoid barrier cells. In vivo imaging of the spinal cord and brain in female VE-cadherin-GFP reporter mice allowed for direct observation of accessibility of CSF derived tracers and T cells into the SAS bordered by the arachnoid and pia mater during health and neuroinflammation, and detection of volume changes of the SAS during CNS pathology. Together, the findings identified VE-cadherin as an informative landmark for in vivo imaging of the leptomeninges that can be used to visualize the borders of the SAS and thus potential barrier properties of the leptomeninges in controlling access of immune mediators and immune cells into the CNS during health and neuroinflammation.
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Affiliation(s)
| | - Javier Pareja
- Theodor Kocher Institute, University of Bern, Bern, Switzerland
| | | | - Elisa Bouillet
- Theodor Kocher Institute, University of Bern, Bern, Switzerland
| | - Pauline Hélie
- Theodor Kocher Institute, University of Bern, Bern, Switzerland
| | - Petr Pleskač
- Theodor Kocher Institute, University of Bern, Bern, Switzerland
| | - Sara Barcos
- Theodor Kocher Institute, University of Bern, Bern, Switzerland
| | - Johanna Andrae
- Department of Immunology, Genetics and Pathology, Uppsala University, Uppsala, Sweden
| | | | - Donald M McDonald
- Cardiovascular Research Institute, UCSF Helen Diller Family Comprehensive Cancer Center, and Department of Anatomy, University of California San Francisco, San Francisco, CA, USA
| | - Christer Betsholtz
- Department of Immunology, Genetics and Pathology, Uppsala University, Uppsala, Sweden
- Department of Medicine-Huddinge, Karolinska Institute, Campus Flemingsberg, Huddinge, Sweden
| | - Urban Deutsch
- Theodor Kocher Institute, University of Bern, Bern, Switzerland
| | - Steven T Proulx
- Theodor Kocher Institute, University of Bern, Bern, Switzerland
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Matrongolo MJ, Ho-Nguyen KT, Jain M, Ang PS, Reddy A, Schaper S, Tischfield MA. Loss of Twist1 and balanced retinoic acid signaling from the meninges causes cortical folding in mice. Development 2023; 150:dev201381. [PMID: 37590085 DOI: 10.1242/dev.201381] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Accepted: 08/08/2023] [Indexed: 08/18/2023]
Abstract
Secondary lissencephaly evolved in mice due to effects on neurogenesis and the tangential distribution of neurons. Signaling pathways that help maintain lissencephaly are still poorly understood. We show that inactivating Twist1 in the primitive meninges causes cortical folding in mice. Cell proliferation in the meninges is reduced, causing loss of arachnoid fibroblasts that express Raldh2, an enzyme required for retinoic acid synthesis. Regionalized loss of Raldh2 in the dorsolateral meninges is first detected when folding begins. The ventricular zone expands and the forebrain lengthens at this time due to expansion of apical radial glia. As the cortex expands, regionalized differences in the levels of neurogenesis are coupled with changes to the tangential distribution of neurons. Consequentially, cortical growth at and adjacent to the midline accelerates with respect to more dorsolateral regions, resulting in cortical buckling and folding. Maternal retinoic acid supplementation suppresses cortical folding by normalizing forebrain length, neurogenesis and the tangential distribution of neurons. These results suggest that Twist1 and balanced retinoic acid signaling from the meninges are required to maintain normal levels of neurogenesis and lissencephaly in mice.
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Affiliation(s)
- Matt J Matrongolo
- Department of Cell Biology and Neuroscience, Rutgers University, Piscataway, NJ 08854, USA
- Child Health Institute of New Jersey, Robert Wood Johnson Medical School, New Brunswick, NJ 08901, USA
| | - Khue-Tu Ho-Nguyen
- Department of Cell Biology and Neuroscience, Rutgers University, Piscataway, NJ 08854, USA
- Child Health Institute of New Jersey, Robert Wood Johnson Medical School, New Brunswick, NJ 08901, USA
| | - Manav Jain
- Department of Cell Biology and Neuroscience, Rutgers University, Piscataway, NJ 08854, USA
- Child Health Institute of New Jersey, Robert Wood Johnson Medical School, New Brunswick, NJ 08901, USA
| | - Phillip S Ang
- Department of Cell Biology and Neuroscience, Rutgers University, Piscataway, NJ 08854, USA
- Child Health Institute of New Jersey, Robert Wood Johnson Medical School, New Brunswick, NJ 08901, USA
- University of Chicago Pritzker School of Medicine, Chicago, IL 60637, USA
| | - Akash Reddy
- Department of Cell Biology and Neuroscience, Rutgers University, Piscataway, NJ 08854, USA
- Child Health Institute of New Jersey, Robert Wood Johnson Medical School, New Brunswick, NJ 08901, USA
| | - Samantha Schaper
- Child Health Institute of New Jersey, Robert Wood Johnson Medical School, New Brunswick, NJ 08901, USA
| | - Max A Tischfield
- Department of Cell Biology and Neuroscience, Rutgers University, Piscataway, NJ 08854, USA
- Child Health Institute of New Jersey, Robert Wood Johnson Medical School, New Brunswick, NJ 08901, USA
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28
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Allen CA, Goderie SK, Liu M, Kiehl TR, Farjood F, Wang Y, Boles NC, Temple S. Adult Mouse Leptomeninges Exhibit Regional and Age-related Cellular Heterogeneity Implicating Mental Disorders. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.09.10.557097. [PMID: 37745502 PMCID: PMC10515796 DOI: 10.1101/2023.09.10.557097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/26/2023]
Abstract
The leptomeninges envelop the central nervous system (CNS) and contribute to cerebrospinal fluid (CSF) production and homeostasis. We analyzed the meninges overlying the anterior or posterior forebrain in the adult mouse by single nuclear RNA-sequencing (snucRNA-seq). This revealed regional differences in fibroblast and endothelial cell composition and gene expression. Surprisingly, these non-neuronal cells co-expressed genes implicated in neural functions. The regional differences changed with aging, from 3 to 18 months. Cytokine analysis revealed specific soluble factor production from anterior vs posterior meninges that also altered with age. Secreted factors from the leptomeninges from different regions and ages differentially impacted the survival of anterior or posterior cortical neuronal subsets, neuron morphology, and glia proliferation. These findings suggest that meningeal dysfunction in different brain regions could contribute to specific neural pathologies. The disease-associations of meningeal cell genes differentially expressed with region and age were significantly enriched for mental and substance abuse disorders.
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Affiliation(s)
| | | | - Mo Liu
- Neural Stem Cell Institute, Rensselaer, NY 12144, USA
| | | | | | - Yue Wang
- Neural Stem Cell Institute, Rensselaer, NY 12144, USA
| | | | - Sally Temple
- Neural Stem Cell Institute, Rensselaer, NY 12144, USA
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29
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Kan D, He X, Liu B, Yang C, Zou Y. Full-thickness skin regeneration beneath the exposed titanium mesh in cranioplasty: Two cases report. Medicine (Baltimore) 2023; 102:e34821. [PMID: 37603526 PMCID: PMC10443770 DOI: 10.1097/md.0000000000034821] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Accepted: 07/28/2023] [Indexed: 08/23/2023] Open
Abstract
RATIONALE Titanium mesh is one of the most widely used implant materials applied in cranioplasty; however, it has been reported to encounter the risk of progressive scalp thinning and implant exposure over time. Here we present 2 cases of exposed titanium mesh (TM) and unusual phenomena of full-thickness skin regeneration beneath the mesh. PATIENT CONCERNS Two patients, 1 with an 8-year and 1 with a 2-year history of implant exposure after cranial TM implantation. DIAGNOSES The patients were diagnosed with scalp ulcers and cranial TM exposure. INTERVENTION The exposed part of the implant was removed, and the full-thickness skin beneath the mesh was directly used as functional soft tissue coverage to repair the scalp defect. OUTCOMES Full recovery for both patients with cosmetic satisfaction. LESSONS Though the exact mechanism of this epithelisation phenomenon beneath the TM remains to be elucidated, it provided a feasible choice for clinicians to reconstruct the scalp's integrity without exerting complicated procedures when dealing with similar cases.
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Affiliation(s)
- Daohong Kan
- Department of Burn and Plastic Surgery, The Second People’s Hospital of Yibin (The Yibin Hospital of West China Hospital, Sichuan University), Sichuan, China
| | - Xuefeng He
- Department of Burns and Wound Repair, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Bing Liu
- Department of Burn and Plastic Surgery, The Second People’s Hospital of Yibin (The Yibin Hospital of West China Hospital, Sichuan University), Sichuan, China
| | - Chaokun Yang
- Department of Cardio Thoracic Surgery, The Second People’s Hospital of Yibin (The Yibin Hospital of West China Hospital, Sichuan University), Sichuan, China
| | - Yong Zou
- Department of Burn and Plastic Surgery, The Second People’s Hospital of Yibin (The Yibin Hospital of West China Hospital, Sichuan University), Sichuan, China
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30
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Laaker C, Baenen C, Kovács KG, Sandor M, Fabry Z. Immune cells as messengers from the CNS to the periphery: the role of the meningeal lymphatic system in immune cell migration from the CNS. Front Immunol 2023; 14:1233908. [PMID: 37662908 PMCID: PMC10471710 DOI: 10.3389/fimmu.2023.1233908] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Accepted: 07/31/2023] [Indexed: 09/05/2023] Open
Abstract
In recent decades there has been a large focus on understanding the mechanisms of peripheral immune cell infiltration into the central nervous system (CNS) in neuroinflammatory diseases. This intense research led to several immunomodulatory therapies to attempt to regulate immune cell infiltration at the blood brain barrier (BBB), the choroid plexus (ChP) epithelium, and the glial barrier. The fate of these infiltrating immune cells depends on both the neuroinflammatory environment and their type-specific interactions with innate cells of the CNS. Although the fate of the majority of tissue infiltrating immune cells is death, a percentage of these cells could become tissue resident immune cells. Additionally, key populations of immune cells can possess the ability to "drain" out of the CNS and act as messengers reporting signals from the CNS toward peripheral lymphatics. Recent data supports that the meningeal lymphatic system is involved not just in fluid homeostatic functions in the CNS but also in facilitating immune cell migration, most notably dendritic cell migration from the CNS to the meningeal borders and to the draining cervical lymph nodes. Similar to the peripheral sites, draining immune cells from the CNS during neuroinflammation have the potential to coordinate immunity in the lymph nodes and thus influence disease. Here in this review, we will evaluate evidence of immune cell drainage from the brain via the meningeal lymphatics and establish the importance of this in animal models and humans. We will discuss how targeting immune cells at sites like the meningeal lymphatics could provide a new mechanism to better provide treatment for a variety of neurological conditions.
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Affiliation(s)
- Collin Laaker
- Neuroscience Training Program, University of Wisconsin Madison, Madison, WI, United States
| | - Cameron Baenen
- Department of Pathology and Laboratory Medicine, School of Medicine and Public Health, University of Wisconsin Madison, Madison, WI, United States
| | - Kristóf G. Kovács
- Department of Pathology and Laboratory Medicine, School of Medicine and Public Health, University of Wisconsin Madison, Madison, WI, United States
| | - Matyas Sandor
- Department of Pathology and Laboratory Medicine, School of Medicine and Public Health, University of Wisconsin Madison, Madison, WI, United States
| | - Zsuzsanna Fabry
- Department of Pathology and Laboratory Medicine, School of Medicine and Public Health, University of Wisconsin Madison, Madison, WI, United States
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Pan S, Koleske J, Koller GM, Halupnik GL, Alli AHO, Koneru S, DeFreitas D, Ramagiri U, Strahle JM. Meningeal CSF transport is primarily mediated by the arachnoid and pia maters during development. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.08.10.552826. [PMID: 37645776 PMCID: PMC10461931 DOI: 10.1101/2023.08.10.552826] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/31/2023]
Abstract
Background The recent characterization of the glymphatic system and meningeal lymphatics has re-emphasized the role of the meninges in facilitating CSF transport and clearance. Here, we characterize small and large CSF solute distribution patterns along the intracranial and surface meninges in neonatal rodents and compare our findings to a rodent model of intraventricular hemorrhage-posthemorrhagic hydrocephalus. We also examine CSF interactions with the tela choroidea and its pial invaginations into the choroid plexuses of the lateral, third, and fourth ventricles. Methods 1.9-nm gold nanoparticles, 15-nm gold nanoparticles, or 3 kDa Red Dextran Tetramethylrhodamine constituted in aCSF were infused into the right lateral ventricle of P7 rats to track CSF circulation. 10 minutes post-1.9-nm gold nanoparticle and Red Dextran Tetramethylrhodamine injection and 4 hours post-15-nm gold nanoparticle injection, animals were sacrificed and brains harvested for histologic analysis to identify CSF tracer localization in the cranial and spine meninges and choroid plexus. Spinal dura and leptomeninges (arachnoid and pia) wholemounts were also performed. Results There was significantly less CSF tracer distribution in the dura compared to the arachnoid and pia maters in neonatal rodents. Both small and large CSF tracers were transported intracranially to the arachnoid and pia mater of the perimesencephalic cisterns and tela choroidea, but not the dura mater of the falx cerebri. CSF tracers followed a similar distribution pattern in the spinal meninges. In the choroid plexus, there was large CSF tracer distribution in the apical surface of epithelial cells, and small CSF tracer along the basolateral surface. There were no significant differences in tracer intensity in the intracranial meninges of control vs. intraventricular hemorrhage-posthemorrhagic hydrocephalus (PHH) rodents, indicating preserved meningeal transport in the setting of PHH. Conclusions Differential CSF tracer handling by the leptomeninges suggests that there are distinct roles for CSF handling between the arachnoid-pia and dura maters in the developing brain. Similarly, differences in apical vs. luminal choroid plexus CSF handling may provide insight into particle-size dependent CSF transport at the CSF-choroid plexus border.
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32
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Mathiesen BK, Miyakoshi LM, Cederroth CR, Tserga E, Versteegh C, Bork PAR, Hauglund NL, Gomolka RS, Mori Y, Edvall NK, Rouse S, Møllgård K, Holt JR, Nedergaard M, Canlon B. Delivery of gene therapy through a cerebrospinal fluid conduit to rescue hearing in adult mice. Sci Transl Med 2023; 15:eabq3916. [PMID: 37379370 DOI: 10.1126/scitranslmed.abq3916] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Accepted: 06/09/2023] [Indexed: 06/30/2023]
Abstract
Inner ear gene therapy has recently effectively restored hearing in neonatal mice, but it is complicated in adulthood by the structural inaccessibility of the cochlea, which is embedded within the temporal bone. Alternative delivery routes may advance auditory research and also prove useful when translated to humans with progressive genetic-mediated hearing loss. Cerebrospinal fluid flow via the glymphatic system is emerging as a new approach for brain-wide drug delivery in rodents as well as humans. The cerebrospinal fluid and the fluid of the inner ear are connected via a bony channel called the cochlear aqueduct, but previous studies have not explored the possibility of delivering gene therapy via the cerebrospinal fluid to restore hearing in adult deaf mice. Here, we showed that the cochlear aqueduct in mice exhibits lymphatic-like characteristics. In vivo time-lapse magnetic resonance imaging, computed tomography, and optical fluorescence microscopy showed that large-particle tracers injected into the cerebrospinal fluid reached the inner ear by dispersive transport via the cochlear aqueduct in adult mice. A single intracisternal injection of adeno-associated virus carrying solute carrier family 17, member 8 (Slc17A8), which encodes vesicular glutamate transporter-3 (VGLUT3), rescued hearing in adult deaf Slc17A8-/- mice by restoring VGLUT3 protein expression in inner hair cells, with minimal ectopic expression in the brain and none in the liver. Our findings demonstrate that cerebrospinal fluid transport comprises an accessible route for gene delivery to the adult inner ear and may represent an important step toward using gene therapy to restore hearing in humans.
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Affiliation(s)
- Barbara K Mathiesen
- Center for Translational Neuromedicine, Division of Glial Disease and Therapeutics, Faculty of Health and Medical Sciences, University of Copenhagen, 2200, Denmark
| | - Leo M Miyakoshi
- Center for Translational Neuromedicine, Division of Glial Disease and Therapeutics, Faculty of Health and Medical Sciences, University of Copenhagen, 2200, Denmark
| | - Christopher R Cederroth
- Department of Physiology and Pharmacology, Karolinska Institutet, Solnavägen 9, Biomedicum, 171 65 Stockholm, Sweden
- Translational Hearing Research, Tübingen Hearing Research Center, Department of Otolaryngology, Head and Neck Surgery, University of Tübingen, Tübingen, Germany
| | - Evangelia Tserga
- Department of Physiology and Pharmacology, Karolinska Institutet, Solnavägen 9, Biomedicum, 171 65 Stockholm, Sweden
| | - Corstiaen Versteegh
- Department of Physiology and Pharmacology, Karolinska Institutet, Solnavägen 9, Biomedicum, 171 65 Stockholm, Sweden
| | - Peter A R Bork
- Center for Translational Neuromedicine, Division of Glial Disease and Therapeutics, Faculty of Health and Medical Sciences, University of Copenhagen, 2200, Denmark
| | - Natalie L Hauglund
- Center for Translational Neuromedicine, Division of Glial Disease and Therapeutics, Faculty of Health and Medical Sciences, University of Copenhagen, 2200, Denmark
| | - Ryszard Stefan Gomolka
- Center for Translational Neuromedicine, Division of Glial Disease and Therapeutics, Faculty of Health and Medical Sciences, University of Copenhagen, 2200, Denmark
| | - Yuki Mori
- Center for Translational Neuromedicine, Division of Glial Disease and Therapeutics, Faculty of Health and Medical Sciences, University of Copenhagen, 2200, Denmark
| | - Niklas K Edvall
- Department of Physiology and Pharmacology, Karolinska Institutet, Solnavägen 9, Biomedicum, 171 65 Stockholm, Sweden
| | - Stephanie Rouse
- Department of Otolaryngology and Neurology, Boston Children's Hospital and Harvard Medical School, Boston, MA 02115, USA
| | - Kjeld Møllgård
- Department of Cellular and Molecular Medicine, Faculty of Health and Medical Sciences, University of Copenhagen; Copenhagen, 2200, Denmark
| | - Jeffrey R Holt
- Department of Otolaryngology and Neurology, Boston Children's Hospital and Harvard Medical School, Boston, MA 02115, USA
| | - Maiken Nedergaard
- Center for Translational Neuromedicine, Division of Glial Disease and Therapeutics, Faculty of Health and Medical Sciences, University of Copenhagen, 2200, Denmark
- Center for Translational Neuromedicine, Division of Glial Disease and Therapeutics, University of Rochester Medical Center; Rochester, NY 14642, USA
| | - Barbara Canlon
- Department of Physiology and Pharmacology, Karolinska Institutet, Solnavägen 9, Biomedicum, 171 65 Stockholm, Sweden
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Wang J, Rattner A, Nathans J. Bacterial meningitis in the early postnatal mouse studied at single-cell resolution. eLife 2023; 12:e86130. [PMID: 37318981 DOI: 10.7554/elife.86130] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2023] [Accepted: 05/22/2023] [Indexed: 06/17/2023] Open
Abstract
Bacterial meningitis is a major cause of morbidity and mortality, especially among infants and the elderly. Here, we study mice to assess the response of each of the major meningeal cell types to early postnatal E. coli infection using single nucleus RNA sequencing (snRNAseq), immunostaining, and genetic and pharamacologic perturbations of immune cells and immune signaling. Flatmounts of the dissected leptomeninges and dura were used to facilitiate high-quality confocal imaging and quantification of cell abundances and morphologies. Upon infection, the major meningeal cell types - including endothelial cells (ECs), macrophages, and fibroblasts - exhibit distinctive changes in their transcriptomes. Additionally, ECs in the leptomeninges redistribute CLDN5 and PECAM1, and leptomeningeal capillaries exhibit foci with reduced blood-brain barrier integrity. The vascular response to infection appears to be largely driven by TLR4 signaling, as determined by the nearly identical responses induced by infection and LPS administration and by the blunted response to infection in Tlr4-/- mice. Interestingly, knocking out Ccr2, encoding a major chemoattractant for monocytes, or acute depletion of leptomeningeal macrophages, following intracebroventricular injection of liposomal clodronate, had little or no effect on the response of leptomeningeal ECs to E. coli infection. Taken together, these data imply that EC responses to infection are largely driven by the intrinsic EC response to LPS.
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Affiliation(s)
- Jie Wang
- Department of Molecular Biology and Genetics, Johns Hopkins University School of Medicine, Baltimore, United States
- Howard Hughes Medical Institute, Johns Hopkins University School of Medicine, Baltimore, United States
| | - Amir Rattner
- Department of Molecular Biology and Genetics, Johns Hopkins University School of Medicine, Baltimore, United States
| | - Jeremy Nathans
- Department of Molecular Biology and Genetics, Johns Hopkins University School of Medicine, Baltimore, United States
- Howard Hughes Medical Institute, Johns Hopkins University School of Medicine, Baltimore, United States
- Department of Neuroscience, Johns Hopkins University School of Medicine, Baltimore, United States
- Department of Ophthalmology, Johns Hopkins University School of Medicine, Baltimore, United States
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34
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Vallecillo-García P, Orgeur M, Comai G, Poehle-Kronawitter S, Fischer C, Gloger M, Dumas CE, Giesecke-Thiel C, Sauer S, Tajbakhsh S, Höpken UE, Stricker S. A local subset of mesenchymal cells expressing the transcription factor Osr1 orchestrates lymph node initiation. Immunity 2023; 56:1204-1219.e8. [PMID: 37160119 DOI: 10.1016/j.immuni.2023.04.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Revised: 12/05/2022] [Accepted: 04/13/2023] [Indexed: 05/11/2023]
Abstract
During development, lymph node (LN) initiation is coordinated by lymphoid tissue organizer (LTo) cells that attract lymphoid tissue inducer (LTi) cells at strategic positions within the embryo. The identity and function of LTo cells during the initial attraction of LTi cells remain poorly understood. Using lineage tracing, we demonstrated that a subset of Osr1-expressing cells was mesenchymal LTo progenitors. By investigating the heterogeneity of Osr1+ cells, we uncovered distinct mesenchymal LTo signatures at diverse anatomical locations, identifying a common progenitor of mesenchymal LTos and LN-associated adipose tissue. Osr1 was essential for LN initiation, driving the commitment of mesenchymal LTo cells independent of neural retinoic acid, and for LN-associated lymphatic vasculature assembly. The combined action of chemokines CXCL13 and CCL21 was required for LN initiation. Our results redefine the role and identity of mesenchymal organizer cells and unify current views by proposing a model of cooperative cell function in LN initiation.
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Affiliation(s)
| | - Mickael Orgeur
- Institut Pasteur, Université Paris Cité, CNRS UMR 6047, Unit for Integrated Mycobacterial Pathogenomics, 75015 Paris, France
| | - Glenda Comai
- Institut Pasteur, Stem Cells & Development Unit, CNRS UMR 3738, Paris, France
| | | | - Cornelius Fischer
- Core Facility Genomics, Berlin Institute of Health at Charité, 10178 Berlin, Germany; Max Delbrück Center for Molecular Medicine in the Helmholtz Association, 10115, Berlin, Germany
| | - Marleen Gloger
- Max Delbrück Center for Molecular Medicine, Department of Translational Tumor Immunology, 13125 Berlin, Germany; Uppsala University, Immunology Genetics and Pathology, 75237 Uppsala, Sweden
| | - Camille E Dumas
- Aix-Marseille Université, CNRS UMR 7288, IBDM, 13009 Marseille, France
| | | | - Sascha Sauer
- Core Facility Genomics, Berlin Institute of Health at Charité, 10178 Berlin, Germany; Max Delbrück Center for Molecular Medicine in the Helmholtz Association, 10115, Berlin, Germany
| | - Shahragim Tajbakhsh
- Institut Pasteur, Stem Cells & Development Unit, CNRS UMR 3738, Paris, France
| | - Uta E Höpken
- Max Delbrück Center for Molecular Medicine, Department of Microenvironmental Regulation in Autoimmunity and Cancer, 13125 Berlin, Germany
| | - Sigmar Stricker
- Institute for Chemistry and Biochemistry, Freie Universität Berlin, 14195 Berlin, Germany.
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Shafqat A, Albalkhi I, Magableh HM, Saleh T, Alkattan K, Yaqinuddin A. Tackling the glial scar in spinal cord regeneration: new discoveries and future directions. Front Cell Neurosci 2023; 17:1180825. [PMID: 37293626 PMCID: PMC10244598 DOI: 10.3389/fncel.2023.1180825] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Accepted: 05/08/2023] [Indexed: 06/10/2023] Open
Abstract
Axonal regeneration and functional recovery are poor after spinal cord injury (SCI), typified by the formation of an injury scar. While this scar was traditionally believed to be primarily responsible for axonal regeneration failure, current knowledge takes a more holistic approach that considers the intrinsic growth capacity of axons. Targeting the SCI scar has also not reproducibly yielded nearly the same efficacy in animal models compared to these neuron-directed approaches. These results suggest that the major reason behind central nervous system (CNS) regeneration failure is not the injury scar but a failure to stimulate axon growth adequately. These findings raise questions about whether targeting neuroinflammation and glial scarring still constitute viable translational avenues. We provide a comprehensive review of the dual role of neuroinflammation and scarring after SCI and how future research can produce therapeutic strategies targeting the hurdles to axonal regeneration posed by these processes without compromising neuroprotection.
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36
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Derk J, Como CN, Jones HE, Joyce LR, Kim S, Spencer BL, Bonney S, O'Rourke R, Pawlikowski B, Doran KS, Siegenthaler JA. Formation and function of the meningeal arachnoid barrier around the developing mouse brain. Dev Cell 2023; 58:635-644.e4. [PMID: 36996816 PMCID: PMC10231667 DOI: 10.1016/j.devcel.2023.03.005] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2022] [Revised: 12/13/2022] [Accepted: 03/08/2023] [Indexed: 03/31/2023]
Abstract
The arachnoid barrier, a component of the blood-cerebrospinal fluid barrier (B-CSFB) in the meninges, is composed of epithelial-like, tight-junction-expressing cells. Unlike other central nervous system (CNS) barriers, its' developmental mechanisms and timing are largely unknown. Here, we show that mouse arachnoid barrier cell specification requires the repression of Wnt-β-catenin signaling and that constitutively active β-catenin can prevent its formation. We also show that the arachnoid barrier is functional prenatally and, in its absence, a small molecular weight tracer and the bacterium group B Streptococcus can cross into the CNS following peripheral injection. Acquisition of barrier properties prenatally coincides with the junctional localization of Claudin 11, and increased E-cadherin and maturation continues after birth, where postnatal expansion is marked by proliferation and re-organization of junctional domains. This work identifies fundamental mechanisms that drive arachnoid barrier formation, highlights arachnoid barrier fetal functions, and provides novel tools for future studies on CNS barrier development.
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Affiliation(s)
- Julia Derk
- University of Colorado Anschutz Medical Campus, Department of Pediatrics, Section of Developmental Biology, Aurora, CO 80045, USA
| | - Christina N Como
- University of Colorado Anschutz Medical Campus, Department of Pediatrics, Section of Developmental Biology, Aurora, CO 80045, USA; University of Colorado Anschutz Medical Campus, Neuroscience Graduate Program, Aurora, CO 80045, USA
| | - Hannah E Jones
- University of Colorado Anschutz Medical Campus, Department of Pediatrics, Section of Developmental Biology, Aurora, CO 80045, USA; University of Colorado Anschutz Medical Campus, Cell Biology Stem Cells and Development Graduate Program, Aurora, CO 80045, USA
| | - Luke R Joyce
- Department of Immunology and Microbiology, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA
| | - Sol Kim
- University of Colorado Anschutz Medical Campus, Department of Pediatrics, Section of Developmental Biology, Aurora, CO 80045, USA; University of Colorado Anschutz Medical Campus, Cell Biology Stem Cells and Development Graduate Program, Aurora, CO 80045, USA
| | - Brady L Spencer
- Department of Immunology and Microbiology, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA
| | - Stephanie Bonney
- University of Colorado Anschutz Medical Campus, Department of Pediatrics, Section of Developmental Biology, Aurora, CO 80045, USA
| | - Rebecca O'Rourke
- University of Colorado Anschutz Medical Campus, Department of Pediatrics, Section of Developmental Biology, Aurora, CO 80045, USA
| | - Brad Pawlikowski
- University of Colorado Anschutz Medical Campus, Department of Pediatrics, Section of Developmental Biology, Aurora, CO 80045, USA
| | - Kelly S Doran
- Department of Immunology and Microbiology, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA
| | - Julie A Siegenthaler
- University of Colorado Anschutz Medical Campus, Department of Pediatrics, Section of Developmental Biology, Aurora, CO 80045, USA; University of Colorado Anschutz Medical Campus, Neuroscience Graduate Program, Aurora, CO 80045, USA; University of Colorado Anschutz Medical Campus, Cell Biology Stem Cells and Development Graduate Program, Aurora, CO 80045, USA.
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Mishra-Gorur K, Barak T, Kaulen LD, Henegariu O, Jin SC, Aguilera SM, Yalbir E, Goles G, Nishimura S, Miyagishima D, Djenoune L, Altinok S, Rai DK, Viviano S, Prendergast A, Zerillo C, Ozcan K, Baran B, Sencar L, Goc N, Yarman Y, Ercan-Sencicek AG, Bilguvar K, Lifton RP, Moliterno J, Louvi A, Yuan S, Deniz E, Brueckner M, Gunel M. Pleiotropic role of TRAF7 in skull-base meningiomas and congenital heart disease. Proc Natl Acad Sci U S A 2023; 120:e2214997120. [PMID: 37043537 PMCID: PMC10120005 DOI: 10.1073/pnas.2214997120] [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: 09/02/2022] [Accepted: 02/27/2023] [Indexed: 04/13/2023] Open
Abstract
While somatic variants of TRAF7 (Tumor necrosis factor receptor-associated factor 7) underlie anterior skull-base meningiomas, here we report the inherited mutations of TRAF7 that cause congenital heart defects. We show that TRAF7 mutants operate in a dominant manner, inhibiting protein function via heterodimerization with wild-type protein. Further, the shared genetics of the two disparate pathologies can be traced to the common origin of forebrain meninges and cardiac outflow tract from the TRAF7-expressing neural crest. Somatic and inherited mutations disrupt TRAF7-IFT57 interactions leading to cilia degradation. TRAF7-mutant meningioma primary cultures lack cilia, and TRAF7 knockdown causes cardiac, craniofacial, and ciliary defects in Xenopus and zebrafish, suggesting a mechanistic convergence for TRAF7-driven meningiomas and developmental heart defects.
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Affiliation(s)
- Ketu Mishra-Gorur
- Department of Neurosurgery, Yale School of Medicine, New Haven, CT06510
| | - Tanyeri Barak
- Department of Neurosurgery, Yale School of Medicine, New Haven, CT06510
| | - Leon D. Kaulen
- Department of Neurosurgery, Yale School of Medicine, New Haven, CT06510
| | | | - Sheng Chih Jin
- Department of Genetics, Yale School of Medicine, New Haven, CT06510
| | | | - Ezgi Yalbir
- Department of Neurosurgery, Yale School of Medicine, New Haven, CT06510
| | - Gizem Goles
- Department of Neurosurgery, Yale School of Medicine, New Haven, CT06510
| | - Sayoko Nishimura
- Department of Neurosurgery, Yale School of Medicine, New Haven, CT06510
| | | | - Lydia Djenoune
- Cardiology Division, Department of Medicine, Cardiovascular Research Center, Massachusetts General Hospital and Harvard Medical School, Boston, MA02129
| | - Selin Altinok
- Department of Neurosurgery, Yale School of Medicine, New Haven, CT06510
| | - Devendra K. Rai
- Department of Neurosurgery, Yale School of Medicine, New Haven, CT06510
| | - Stephen Viviano
- Department of Pediatrics, Yale School of Medicine, New Haven, CT06510
| | - Andrew Prendergast
- Department of Internal Medicine, Section of Cardiology, Yale Cardiovascular Research Center, Yale School of Medicine, New Haven, CT06510
| | - Cynthia Zerillo
- Department of Neurosurgery, Yale School of Medicine, New Haven, CT06510
| | - Kent Ozcan
- Department of Neurosurgery, Yale School of Medicine, New Haven, CT06510
| | - Burcin Baran
- Department of Neurosurgery, Yale School of Medicine, New Haven, CT06510
| | - Leman Sencar
- Department of Neurosurgery, Yale School of Medicine, New Haven, CT06510
| | - Nukte Goc
- Department of Neurosurgery, Yale School of Medicine, New Haven, CT06510
| | - Yanki Yarman
- Department of Neurosurgery, Yale School of Medicine, New Haven, CT06510
| | | | - Kaya Bilguvar
- Department of Genetics, Yale School of Medicine, New Haven, CT06510
| | - Richard P. Lifton
- Department of Genetics, Yale School of Medicine, New Haven, CT06510
- Laboratory of Human Genetics and Genomics, The Rockefeller University, New York, NY10065
| | - Jennifer Moliterno
- Department of Neurosurgery, Yale School of Medicine, New Haven, CT06510
- Yale Program in Brain Tumor Research, Yale School of Medicine, New Haven, CT06510
| | - Angeliki Louvi
- Department of Neurosurgery, Yale School of Medicine, New Haven, CT06510
- Department of Neuroscience, Yale School of Medicine, New Haven, CT06510
| | - Shiaulou Yuan
- Cardiology Division, Department of Medicine, Cardiovascular Research Center, Massachusetts General Hospital and Harvard Medical School, Boston, MA02129
| | - Engin Deniz
- Department of Pediatrics, Yale School of Medicine, New Haven, CT06510
| | - Martina Brueckner
- Department of Pediatrics, Yale School of Medicine, New Haven, CT06510
| | - Murat Gunel
- Department of Neurosurgery, Yale School of Medicine, New Haven, CT06510
- Department of Genetics, Yale School of Medicine, New Haven, CT06510
- Yale Program in Brain Tumor Research, Yale School of Medicine, New Haven, CT06510
- Department of Neuroscience, Yale School of Medicine, New Haven, CT06510
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Spera I, Cousin N, Ries M, Kedracka A, Castillo A, Aleandri S, Vladymyrov M, Mapunda JA, Engelhardt B, Luciani P, Detmar M, Proulx ST. Open pathways for cerebrospinal fluid outflow at the cribriform plate along the olfactory nerves. EBioMedicine 2023; 91:104558. [PMID: 37043871 PMCID: PMC10119713 DOI: 10.1016/j.ebiom.2023.104558] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Revised: 02/23/2023] [Accepted: 03/24/2023] [Indexed: 04/14/2023] Open
Abstract
BACKGROUND Routes along the olfactory nerves crossing the cribriform plate that extend to lymphatic vessels within the nasal cavity have been identified as a critical cerebrospinal fluid (CSF) outflow pathway. However, it is still unclear how the efflux pathways along the nerves connect to lymphatic vessels or if any functional barriers are present at this site. The aim of this study was to anatomically define the connections between the subarachnoid space and the lymphatic system at the cribriform plate in mice. METHODS PEGylated fluorescent microbeads were infused into the CSF space in Prox1-GFP reporter mice and decalcification histology was utilized to investigate the anatomical connections between the subarachnoid space and the lymphatic vessels in the nasal submucosa. A fluorescently-labelled antibody marking vascular endothelium was injected into the cisterna magna to demonstrate the functionality of the lymphatic vessels in the olfactory region. Finally, we performed immunostaining to study the distribution of the arachnoid barrier at the cribriform plate region. FINDINGS We identified that there are open and direct connections from the subarachnoid space to lymphatic vessels enwrapping the olfactory nerves as they cross the cribriform plate towards the nasal submucosa. Furthermore, lymphatic vessels adjacent to the olfactory bulbs form a continuous network that is functionally connected to lymphatics in the nasal submucosa. Immunostainings revealed a discontinuous distribution of the arachnoid barrier at the olfactory region of the mouse. INTERPRETATION Our data supports a direct bulk flow mechanism through the cribriform plate allowing CSF drainage into nasal submucosal lymphatics in mice. FUNDING This study was supported by the Swiss National Science Foundation (310030_189226), Dementia Research Switzerland-Synapsis Foundation, the Heidi Seiler Stiftung and the Fondation Dr. Corinne Schuler.
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Affiliation(s)
- Irene Spera
- Theodor Kocher Institute, University of Bern, Bern, Switzerland
| | - Nikola Cousin
- Institute of Pharmaceutical Sciences, ETH Zürich, Zürich, Switzerland
| | - Miriam Ries
- Institute of Pharmaceutical Sciences, ETH Zürich, Zürich, Switzerland
| | - Anna Kedracka
- Institute of Pharmaceutical Sciences, ETH Zürich, Zürich, Switzerland
| | - Alina Castillo
- Theodor Kocher Institute, University of Bern, Bern, Switzerland
| | - Simone Aleandri
- Department of Chemistry, Biochemistry and Pharmaceutical Sciences, University of Bern, Bern, Switzerland
| | | | | | | | - Paola Luciani
- Department of Chemistry, Biochemistry and Pharmaceutical Sciences, University of Bern, Bern, Switzerland
| | - Michael Detmar
- Institute of Pharmaceutical Sciences, ETH Zürich, Zürich, Switzerland
| | - Steven T Proulx
- Theodor Kocher Institute, University of Bern, Bern, Switzerland.
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Como CN, Kim S, Siegenthaler J. Stuck on you: Meninges cellular crosstalk in development. Curr Opin Neurobiol 2023; 79:102676. [PMID: 36773497 PMCID: PMC10023464 DOI: 10.1016/j.conb.2023.102676] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Revised: 12/22/2022] [Accepted: 01/04/2023] [Indexed: 02/11/2023]
Abstract
The spatial and temporal development of the brain, overlying meninges (fibroblasts, vasculature and immune cells) and calvarium are highly coordinated. In particular, the timing of meningeal fibroblasts into molecularly distinct pia, arachnoid and dura subtypes coincides with key developmental events in the brain and calvarium. Further, the meninges are positioned to influence development of adjacent structures and do so via depositing basement membrane and producing molecular cues to regulate brain and calvarial development. Here, we review the current knowledge of how meninges development aligns with events in the brain and calvarium and meningeal fibroblast "crosstalk" with these structures. We summarize outstanding questions and how the use of non-mammalian models to study the meninges will substantially advance the field of meninges biology.
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Affiliation(s)
- Christina N Como
- Department of Pediatrics Section of Developmental Biology, University of Colorado Anschutz Medical Campus, Aurora, CO, USA; Neuroscience Graduate Program, University of Colorado Anschutz Medical Campus, Aurora, CO, USA. https://twitter.com/ChristinaComo
| | - Sol Kim
- Department of Pediatrics Section of Developmental Biology, University of Colorado Anschutz Medical Campus, Aurora, CO, USA; Cell Biology, Stem Cells, and Development Graduate Program, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Julie Siegenthaler
- Department of Pediatrics Section of Developmental Biology, University of Colorado Anschutz Medical Campus, Aurora, CO, USA; Cell Biology, Stem Cells, and Development Graduate Program, University of Colorado Anschutz Medical Campus, Aurora, CO, USA; Neuroscience Graduate Program, University of Colorado Anschutz Medical Campus, Aurora, CO, USA; University of Colorado, School of Medicine Department of Pediatrics 12800 East 19th Ave MS-8313 Aurora, CO 80045, USA.
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40
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Jones HE, Coelho-Santos V, Bonney SK, Abrams KA, Shih AY, Siegenthaler JA. Meningeal origins and dynamics of perivascular fibroblast development on the mouse cerebral vasculature. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.03.23.533982. [PMID: 36993587 PMCID: PMC10055392 DOI: 10.1101/2023.03.23.533982] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/19/2023]
Abstract
Perivascular fibroblasts (PVFs) are a fibroblast-like cell type that reside on large-diameter blood vessels in the adult meninges and central nervous system (CNS). PVFs drive fibrosis following injury but their homeostatic functions are not well detailed. In mice, PVFs were previously shown to be absent from most brain regions at birth and are only detected postnatally within the cerebral cortex. However, the origin, timing, and cellular mechanisms of PVF development are not known. We used Col1a1-GFP and Col1a2-CreERT transgenic mice to track PVF developmental timing and progression in postnatal mice. Using a combination of lineage tracing and in vivo imaging we show that brain PVFs originate from the meninges and are first seen on parenchymal cerebrovasculature at postnatal day (P)5. After P5, PVF coverage of the cerebrovasculature rapidly expands via mechanisms of local cell proliferation and migration from the meninges, reaching adult levels at P14. Finally, we show that PVFs and perivascular macrophages (PVMs) develop concurrently along postnatal cerebral blood vessels, where the location and depth of PVMs and PVFs highly correlate. These findings provide the first complete timeline for PVF development in the brain, enabling future work into how PVF development is coordinated with cell types and structures in and around the perivascular spaces to support normal CNS vascular function. Summary Brain perivascular fibroblasts migrate from their origin in the meninges and proliferate locally to fully cover penetrating vessels during postnatal mouse development.
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41
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Barron JJ, Mroz NM, Taloma SE, Dahlgren MW, Ortiz-Carpena J, Dorman LC, Vainchtein ID, Escoubas CC, Molofsky AB, Molofsky AV. Group 2 innate lymphoid cells promote inhibitory synapse development and social behavior. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.03.16.532850. [PMID: 36993292 PMCID: PMC10055027 DOI: 10.1101/2023.03.16.532850] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 06/19/2023]
Abstract
The innate immune system plays essential roles in brain synaptic development, and immune dysregulation is implicated in neurodevelopmental diseases. Here we show that a subset of innate lymphocytes (group 2 innate lymphoid cells, ILC2s) is required for cortical inhibitory synapse maturation and adult social behavior. ILC2s expanded in the developing meninges and produced a surge of their canonical cytokine Interleukin-13 (IL-13) between postnatal days 5-15. Loss of ILC2s decreased cortical inhibitory synapse numbers in the postnatal period where as ILC2 transplant was sufficient to increase inhibitory synapse numbers. Deletion of the IL-4/IL-13 receptor (Il4ra) from inhibitory neurons phenocopied the reduction inhibitory synapses. Both ILC2 deficient and neuronal Il4ra deficient animals had similar and selective impairments in adult social behavior. These data define a type 2 immune circuit in early life that shapes adult brain function.
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Affiliation(s)
- Jerika J. Barron
- Departments of Psychiatry/Weill Institute for Neurosciences
- Biomedical Sciences Graduate Program
| | - Nicholas M. Mroz
- Biomedical Sciences Graduate Program
- Department of Laboratory Medicine. University of California, San Francisco, San Francisco, CA
| | - Sunrae E. Taloma
- Departments of Psychiatry/Weill Institute for Neurosciences
- Neuroscience Graduate Program
| | - Madelene W. Dahlgren
- Department of Laboratory Medicine. University of California, San Francisco, San Francisco, CA
| | - Jorge Ortiz-Carpena
- Department of Laboratory Medicine. University of California, San Francisco, San Francisco, CA
| | - Leah C. Dorman
- Departments of Psychiatry/Weill Institute for Neurosciences
- Neuroscience Graduate Program
| | | | | | - Ari B. Molofsky
- Department of Laboratory Medicine. University of California, San Francisco, San Francisco, CA
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42
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Pilaz LJ, Liu J, Joshi K, Tsunekawa Y, Musso CM, D'Arcy BR, Suzuki IK, Alsina FC, Kc P, Sethi S, Vanderhaeghen P, Polleux F, Silver DL. Subcellular mRNA localization and local translation of Arhgap11a in radial glial progenitors regulates cortical development. Neuron 2023; 111:839-856.e5. [PMID: 36924763 PMCID: PMC10132781 DOI: 10.1016/j.neuron.2023.02.023] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Revised: 11/26/2022] [Accepted: 02/10/2023] [Indexed: 03/17/2023]
Abstract
mRNA localization and local translation enable exquisite spatial and temporal control of gene expression, particularly in polarized, elongated cells. These features are especially prominent in radial glial cells (RGCs), which are neural and glial precursors of the developing cerebral cortex and scaffolds for migrating neurons. Yet the mechanisms by which subcellular RGC compartments accomplish their diverse functions are poorly understood. Here, we demonstrate that mRNA localization and local translation of the RhoGAP ARHGAP11A in the basal endfeet of RGCs control their morphology and mediate neuronal positioning. Arhgap11a transcript and protein exhibit conserved localization to RGC basal structures in mice and humans, conferred by the 5' UTR. Proper RGC morphology relies upon active Arhgap11a mRNA transport and localization to the basal endfeet, where ARHGAP11A is locally synthesized. This translation is essential for positioning interneurons at the basement membrane. Thus, local translation spatially and acutely activates Rho signaling in RGCs to compartmentalize neural progenitor functions.
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Affiliation(s)
- Louis-Jan Pilaz
- Department of Molecular Genetics and Microbiology, Duke University School of Medicine, Durham, NC 27710, USA; Pediatrics and Rare Diseases Group, Sanford Research, Sioux Falls, SD 57104, USA; Department of Pediatrics, Sanford School of Medicine, University of South Dakota, Sioux Falls, SD 57105, USA
| | - Jing Liu
- Department of Molecular Genetics and Microbiology, Duke University School of Medicine, Durham, NC 27710, USA
| | - Kaumudi Joshi
- Department of Neuroscience, Columbia University Medical Center, New York, NY 10032, USA
| | - Yuji Tsunekawa
- Laboratory for Cell Asymmetry, RIKEN Center for Biosystems Dynamics Research, Kobe, Japan
| | - Camila M Musso
- Department of Molecular Genetics and Microbiology, Duke University School of Medicine, Durham, NC 27710, USA
| | - Brooke R D'Arcy
- Department of Molecular Genetics and Microbiology, Duke University School of Medicine, Durham, NC 27710, USA
| | - Ikuo K Suzuki
- Department of Biological Sciences, Graduate School of Science, The University of Tokyo, Tokyo, Japan
| | - Fernando C Alsina
- Department of Molecular Genetics and Microbiology, Duke University School of Medicine, Durham, NC 27710, USA
| | - Pratiksha Kc
- Pediatrics and Rare Diseases Group, Sanford Research, Sioux Falls, SD 57104, USA; Department of Pediatrics, Sanford School of Medicine, University of South Dakota, Sioux Falls, SD 57105, USA
| | - Sahil Sethi
- Department of Molecular Genetics and Microbiology, Duke University School of Medicine, Durham, NC 27710, USA
| | - Pierre Vanderhaeghen
- VIB-KU Leuven Center for Brain & Disease Research, 3000 Leuven, Belgium; KU Leuven, Department of Neurosciences & Leuven Brain Institute, 3000 Leuven, Belgium; Université Libre de Bruxelles (U.L.B.), Institut de Recherches en Biologie Humaine et Moléculaire (IRIBHM), and ULB Neuroscience Institute (UNI), 1070 Brussels, Belgium
| | - Franck Polleux
- Department of Neuroscience, Columbia University Medical Center, New York, NY 10032, USA; Mortimer B. Zuckerman Mind Brain Behavior Institute, New York, NY 10027, USA; Kavli Institute for Brain Sciences, Columbia University Medical Center, New York, NY 10027, USA
| | - Debra L Silver
- Department of Molecular Genetics and Microbiology, Duke University School of Medicine, Durham, NC 27710, USA; Departments of Cell Biology and Neurobiology, Duke University School of Medicine, Durham, NC 27710, USA; Duke Institute for Brain Sciences and Duke Regeneration Center, Duke University School of Medicine, Durham, NC 27710, USA.
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43
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Duan L, Yu X. Fibroblasts: new players in the central nervous system? FUNDAMENTAL RESEARCH 2023. [DOI: 10.1016/j.fmre.2023.01.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/11/2023] Open
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44
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Kundishora AJ, Allington G, McGee S, Mekbib KY, Gainullin V, Timberlake AT, Nelson-Williams C, Kiziltug E, Smith H, Ocken J, Shohfi J, Allocco A, Duy PQ, Elsamadicy AA, Dong W, Zhao S, Wang YC, Qureshi HM, DiLuna ML, Mane S, Tikhonova IR, Fu PY, Castaldi C, López-Giráldez F, Knight JR, Furey CG, Carter BS, Haider S, Moreno-De-Luca A, Alper SL, Gunel M, Millan F, Lifton RP, Torene RI, Jin SC, Kahle KT. Multiomic analyses implicate a neurodevelopmental program in the pathogenesis of cerebral arachnoid cysts. Nat Med 2023; 29:667-678. [PMID: 36879130 DOI: 10.1038/s41591-023-02238-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Accepted: 01/26/2023] [Indexed: 03/08/2023]
Abstract
Cerebral arachnoid cysts (ACs) are one of the most common and poorly understood types of developmental brain lesion. To begin to elucidate AC pathogenesis, we performed an integrated analysis of 617 patient-parent (trio) exomes, 152,898 human brain and mouse meningeal single-cell RNA sequencing transcriptomes and natural language processing data of patient medical records. We found that damaging de novo variants (DNVs) were highly enriched in patients with ACs compared with healthy individuals (P = 1.57 × 10-33). Seven genes harbored an exome-wide significant DNV burden. AC-associated genes were enriched for chromatin modifiers and converged in midgestational transcription networks essential for neural and meningeal development. Unsupervised clustering of patient phenotypes identified four AC subtypes and clinical severity correlated with the presence of a damaging DNV. These data provide insights into the coordinated regulation of brain and meningeal development and implicate epigenomic dysregulation due to DNVs in AC pathogenesis. Our results provide a preliminary indication that, in the appropriate clinical context, ACs may be considered radiographic harbingers of neurodevelopmental pathology warranting genetic testing and neurobehavioral follow-up. These data highlight the utility of a systems-level, multiomics approach to elucidate sporadic structural brain disease.
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Affiliation(s)
- Adam J Kundishora
- Department of Neurosurgery, Yale University School of Medicine, New Haven, CT, USA
| | - Garrett Allington
- Department of Pathology, Yale University School of Medicine, New Haven, CT, USA
- Department of Neurosurgery, Massachusetts General Hospital, Boston, MA, USA
| | | | - Kedous Y Mekbib
- Department of Neurosurgery, Yale University School of Medicine, New Haven, CT, USA
- Department of Neurosurgery, Massachusetts General Hospital, Boston, MA, USA
| | | | - Andrew T Timberlake
- Hansjörg Wyss Department of Plastic Surgery, New York University Langone Medical Center, New York, NY, USA
| | | | - Emre Kiziltug
- Department of Neurosurgery, Yale University School of Medicine, New Haven, CT, USA
| | - Hannah Smith
- Department of Neurosurgery, Yale University School of Medicine, New Haven, CT, USA
- Department of Neurosurgery, Massachusetts General Hospital, Boston, MA, USA
| | - Jack Ocken
- Department of Neurosurgery, Yale University School of Medicine, New Haven, CT, USA
| | - John Shohfi
- Department of Neurosurgery, Yale University School of Medicine, New Haven, CT, USA
| | - August Allocco
- Department of Neurosurgery, Yale University School of Medicine, New Haven, CT, USA
| | - Phan Q Duy
- Department of Neurosurgery, Yale University School of Medicine, New Haven, CT, USA
| | - Aladine A Elsamadicy
- Department of Neurosurgery, Yale University School of Medicine, New Haven, CT, USA
| | - Weilai Dong
- Laboratory of Human Genetics and Genomics, The Rockefeller University, New York, NY, USA
| | - Shujuan Zhao
- Department of Genetics, Washington University School of Medicine, St. Louis, MO, USA
| | - Yung-Chun Wang
- Department of Genetics, Washington University School of Medicine, St. Louis, MO, USA
| | - Hanya M Qureshi
- Department of Neurosurgery, Yale University School of Medicine, New Haven, CT, USA
| | - Michael L DiLuna
- Department of Neurosurgery, Yale University School of Medicine, New Haven, CT, USA
| | - Shrikant Mane
- Department of Genetics, Washington University School of Medicine, St. Louis, MO, USA
- Yale Center for Genomic Analysis, Yale University, West Haven, CT, USA
| | | | - Po-Ying Fu
- Department of Genetics, Washington University School of Medicine, St. Louis, MO, USA
| | | | | | - James R Knight
- Yale Center for Genomic Analysis, Yale University, West Haven, CT, USA
| | - Charuta G Furey
- Department of Neurosurgery, Yale University School of Medicine, New Haven, CT, USA
| | - Bob S Carter
- Department of Neurosurgery, Massachusetts General Hospital, Boston, MA, USA
| | - Shozeb Haider
- School of Pharmacy, University College London, London, UK
| | - Andres Moreno-De-Luca
- Department of Radiology, Autism and Developmental Medicine Institute, Genomic Medicine Institute, Geisinger, Danville, PA, USA
| | - Seth L Alper
- Division of Nephrology and Vascular Biology Research Center, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
- Department of Medicine, Harvard Medical School, Boston, MA, USA
| | - Murat Gunel
- Department of Neurosurgery, Yale University School of Medicine, New Haven, CT, USA
| | | | - Richard P Lifton
- Laboratory of Human Genetics and Genomics, The Rockefeller University, New York, NY, USA
| | | | - Sheng Chih Jin
- Department of Genetics, Washington University School of Medicine, St. Louis, MO, USA
- Department of Pediatrics, Washington University School of Medicine, St. Louis, MO, USA
| | - Kristopher T Kahle
- Department of Neurosurgery, Yale University School of Medicine, New Haven, CT, USA.
- Department of Neurosurgery, Massachusetts General Hospital, Boston, MA, USA.
- Division of Genetics and Genomics, Boston Children's Hospital, Boston, MA, USA.
- Broad Institute of MIT and Harvard, Cambridge, MA, USA.
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45
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Amann L, Masuda T, Prinz M. Mechanisms of myeloid cell entry to the healthy and diseased central nervous system. Nat Immunol 2023; 24:393-407. [PMID: 36759712 DOI: 10.1038/s41590-022-01415-8] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2022] [Accepted: 12/15/2022] [Indexed: 02/11/2023]
Abstract
Myeloid cells in the central nervous system (CNS), such as microglia, CNS-associated macrophages (CAMs), dendritic cells and monocytes, are vital for steady-state immune homeostasis as well as the resolution of tissue damage during brain development or disease-related pathology. The complementary usage of multimodal high-throughput and high-dimensional single-cell technologies along with recent advances in cell-fate mapping has revealed remarkable myeloid cell heterogeneity in the CNS. Despite the establishment of extensive expression profiles revealing myeloid cell multiplicity, the local anatomical conditions for the temporal- and spatial-dependent cellular engraftment are poorly understood. Here we highlight recent discoveries of the context-dependent mechanisms of myeloid cell migration and settlement into distinct subtissular structures in the CNS. These insights offer better understanding of the factors needed for compartment-specific myeloid cell recruitment, integration and residence during development and perturbation, which may lead to better treatment of CNS diseases.
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Affiliation(s)
- Lukas Amann
- Institute of Neuropathology, Faculty of Medicine, University of Freiburg, Freiburg, Germany.
| | - Takahiro Masuda
- Division of Molecular Neuroimmunology, Medical Institute of Bioregulation, Kyushu University, Fukuoka, Japan.
| | - Marco Prinz
- Institute of Neuropathology, Faculty of Medicine, University of Freiburg, Freiburg, Germany. .,Center for Basics in NeuroModulation (NeuroModulBasics), Faculty of Medicine, University of Freiburg, Freiburg, Germany. .,Signalling Research Centres BIOSS and CIBSS, University of Freiburg, Freiburg, Germany.
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46
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Bi R, Yin Q, Li H, Yang X, Wang Y, Li Q, Fang H, Li P, Lyu P, Fan Y, Ying B, Zhu S. A single-cell transcriptional atlas reveals resident progenitor cell niche functions in TMJ disc development and injury. Nat Commun 2023; 14:830. [PMID: 36788226 PMCID: PMC9929076 DOI: 10.1038/s41467-023-36406-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Accepted: 01/31/2023] [Indexed: 02/16/2023] Open
Abstract
The biological characteristics of the temporomandibular joint disc involve complex cellular network in cell identity and extracellular matrix composition to modulate jaw function. The lack of a detailed characterization of the network severely limits the development of targeted therapies for temporomandibular joint-related diseases. Here we profiled single-cell transcriptomes of disc cells from mice at different postnatal stages, finding that the fibroblast population could be divided into chondrogenic and non-chondrogenic clusters. We also find that the resident mural cell population is the source of disc progenitors, characterized by ubiquitously active expression of the NOTCH3 and THY1 pathways. Lineage tracing reveals that Myh11+ mural cells coordinate angiogenesis during disc injury but lost their progenitor characteristics and ultimately become Sfrp2+ non-chondrogenic fibroblasts instead of Chad+ chondrogenic fibroblasts. Overall, we reveal multiple insights into the coordinated development of disc cells and are the first to describe the resident mural cell progenitor during disc injury.
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Affiliation(s)
- Ruiye Bi
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Orthognathic and TMJ Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China
| | - Qing Yin
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Orthognathic and TMJ Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China.,Max-Planck Institute for Heart and Lung Research, W. G. Kerckhoff Institute, Bad Nauheim, D-61231, Germany
| | - Haohan Li
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Orthognathic and TMJ Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China
| | - Xianni Yang
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Orthognathic and TMJ Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China
| | - Yiru Wang
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Orthognathic and TMJ Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China
| | - Qianli Li
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Orthognathic and TMJ Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China
| | - Han Fang
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Orthognathic and TMJ Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China
| | - Peiran Li
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Orthognathic and TMJ Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China
| | - Ping Lyu
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Operative Dentistry and Endodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China
| | - Yi Fan
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Operative Dentistry and Endodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China
| | - Binbin Ying
- Department of Stomatology, Ningbo First Hospital, 59 Liuting street, Ningbo, 315000, China
| | - Songsong Zhu
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Orthognathic and TMJ Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China.
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Neutzner M, Kohler C, Frank S, Killer HE, Neutzner A. Impact of aging on meningeal gene expression. Fluids Barriers CNS 2023; 20:12. [PMID: 36747230 PMCID: PMC9903605 DOI: 10.1186/s12987-023-00412-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Accepted: 01/25/2023] [Indexed: 02/08/2023] Open
Abstract
BACKGROUND The three-layered meninges cover and protect the central nervous system and form the interface between cerebrospinal fluid and the brain. They are host to a lymphatic system essential for maintaining fluid dynamics inside the cerebrospinal fluid-filled subarachnoid space and across the brain parenchyma via their connection to glymphatic structures. Meningeal fibroblasts lining and traversing the subarachnoid space have direct impact on the composition of the cerebrospinal fluid through endocytotic uptake as well as extensive protein secretion. In addition, the meninges are an active site for immunological processes and act as gatekeeper for immune cells entering the brain. During aging in mice, lymphatic drainage from the brain is less efficient contributing to neurodegenerative processes. Aging also affects the immunological status of the meninges, with increasing numbers of T cells, changing B cell make-up, and altered macrophage complement. METHODS We employed RNASeq to measure gene expression and to identify differentially expressed genes in meninges isolated from young and aged mice. Using Ingenuity pathway, GO term, and MeSH analyses, we identified regulatory pathways and cellular functions in meninges affected by aging. RESULTS Aging had profound impact on meningeal gene expression. Pathways related to innate as well as adaptive immunity were affected. We found evidence for increasing numbers of T and B lymphocytes and altered activity profiles for macrophages and other myeloid cells. Furthermore, expression of pro-inflammatory cytokine and chemokine genes increased with aging. Similarly, the complement system seemed to be more active in meninges of aged mice. Altered expression of solute carrier genes pointed to age-dependent changes in cerebrospinal fluid composition. In addition, gene expression for secreted proteins showed age-dependent changes, in particular, genes related to extracellular matrix composition and organization were affected. CONCLUSIONS Aging has profound effects on meningeal gene expression; thereby affecting the multifaceted functions meninges perform to maintain the homeostasis of the central nervous system. Thus, age-dependent neurodegenerative processes and cognitive decline are potentially in part driven by altered meningeal function.
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Affiliation(s)
- Melanie Neutzner
- grid.6612.30000 0004 1937 0642Department of Biomedicine, University Hospital Basel, University of Basel, Hebelstrasse 20, 4031 Basel, Switzerland
| | - Corina Kohler
- grid.6612.30000 0004 1937 0642Department of Biomedicine, University Hospital Basel, University of Basel, Hebelstrasse 20, 4031 Basel, Switzerland
| | - Stephan Frank
- grid.6612.30000 0004 1937 0642Department of Pathology, University Hospital Basel, University of Basel, Basel, Switzerland
| | - Hanspeter E. Killer
- grid.6612.30000 0004 1937 0642Department of Biomedicine, University Hospital Basel, University of Basel, Hebelstrasse 20, 4031 Basel, Switzerland
| | - Albert Neutzner
- Department of Biomedicine, University Hospital Basel, University of Basel, Hebelstrasse 20, 4031, Basel, Switzerland.
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Møllgård K, Beinlich FRM, Kusk P, Miyakoshi LM, Delle C, Plá V, Hauglund NL, Esmail T, Rasmussen MK, Gomolka RS, Mori Y, Nedergaard M. A mesothelium divides the subarachnoid space into functional compartments. Science 2023; 379:84-88. [PMID: 36603070 DOI: 10.1126/science.adc8810] [Citation(s) in RCA: 65] [Impact Index Per Article: 65.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
The central nervous system is lined by meninges, classically known as dura, arachnoid, and pia mater. We show the existence of a fourth meningeal layer that compartmentalizes the subarachnoid space in the mouse and human brain, designated the subarachnoid lymphatic-like membrane (SLYM). SLYM is morpho- and immunophenotypically similar to the mesothelial membrane lining of peripheral organs and body cavities, and it encases blood vessels and harbors immune cells. Functionally, the close apposition of SLYM with the endothelial lining of the meningeal venous sinus permits direct exchange of small solutes between cerebrospinal fluid and venous blood, thus representing the mouse equivalent of the arachnoid granulations. The functional characterization of SLYM provides fundamental insights into brain immune barriers and fluid transport.
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Affiliation(s)
- Kjeld Møllgård
- Department of Cellular and Molecular Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, 2200 Copenhagen, Denmark
| | - Felix R M Beinlich
- Division of Glial Disease and Therapeutics, Center for Translational Neuromedicine, Faculty of Health and Medical Sciences, University of Copenhagen, 2200 Copenhagen, Denmark
| | - Peter Kusk
- Division of Glial Disease and Therapeutics, Center for Translational Neuromedicine, Faculty of Health and Medical Sciences, University of Copenhagen, 2200 Copenhagen, Denmark
| | - Leo M Miyakoshi
- Division of Glial Disease and Therapeutics, Center for Translational Neuromedicine, Faculty of Health and Medical Sciences, University of Copenhagen, 2200 Copenhagen, Denmark
| | - Christine Delle
- Division of Glial Disease and Therapeutics, Center for Translational Neuromedicine, Faculty of Health and Medical Sciences, University of Copenhagen, 2200 Copenhagen, Denmark
| | - Virginia Plá
- Division of Glial Disease and Therapeutics, Center for Translational Neuromedicine, Faculty of Health and Medical Sciences, University of Copenhagen, 2200 Copenhagen, Denmark
| | - Natalie L Hauglund
- Division of Glial Disease and Therapeutics, Center for Translational Neuromedicine, Faculty of Health and Medical Sciences, University of Copenhagen, 2200 Copenhagen, Denmark
| | - Tina Esmail
- Division of Glial Disease and Therapeutics, Center for Translational Neuromedicine, Faculty of Health and Medical Sciences, University of Copenhagen, 2200 Copenhagen, Denmark
| | - Martin K Rasmussen
- Division of Glial Disease and Therapeutics, Center for Translational Neuromedicine, Faculty of Health and Medical Sciences, University of Copenhagen, 2200 Copenhagen, Denmark
| | - Ryszard S Gomolka
- Division of Glial Disease and Therapeutics, Center for Translational Neuromedicine, Faculty of Health and Medical Sciences, University of Copenhagen, 2200 Copenhagen, Denmark
| | - Yuki Mori
- Division of Glial Disease and Therapeutics, Center for Translational Neuromedicine, Faculty of Health and Medical Sciences, University of Copenhagen, 2200 Copenhagen, Denmark
| | - Maiken Nedergaard
- Division of Glial Disease and Therapeutics, Center for Translational Neuromedicine, University of Rochester Medical Center, Rochester, NY 14642, USA
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49
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Bolte AC, Shapiro DA, Dutta AB, Ma WF, Bruch KR, Kovacs MA, Royo Marco A, Ennerfelt HE, Lukens JR. The meningeal transcriptional response to traumatic brain injury and aging. eLife 2023; 12:81154. [PMID: 36594818 PMCID: PMC9810333 DOI: 10.7554/elife.81154] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2022] [Accepted: 12/14/2022] [Indexed: 12/31/2022] Open
Abstract
Emerging evidence suggests that the meningeal compartment plays instrumental roles in various neurological disorders, however, we still lack fundamental knowledge about meningeal biology. Here, we utilized high-throughput RNA sequencing (RNA-seq) techniques to investigate the transcriptional response of the meninges to traumatic brain injury (TBI) and aging in the sub-acute and chronic time frames. Using single-cell RNA sequencing (scRNA-seq), we first explored how mild TBI affects the cellular and transcriptional landscape in the meninges in young mice at one-week post-injury. Then, using bulk RNA-seq, we assessed the differential long-term outcomes between young and aged mice following TBI. In our scRNA-seq studies, we highlight injury-related changes in differential gene expression seen in major meningeal cell populations including macrophages, fibroblasts, and adaptive immune cells. We found that TBI leads to an upregulation of type I interferon (IFN) signature genes in macrophages and a controlled upregulation of inflammatory-related genes in the fibroblast and adaptive immune cell populations. For reasons that remain poorly understood, even mild injuries in the elderly can lead to cognitive decline and devastating neuropathology. To better understand the differential outcomes between the young and the elderly following brain injury, we performed bulk RNA-seq on young and aged meninges 1.5 months after TBI. Notably, we found that aging alone induced upregulation of meningeal genes involved in antibody production by B cells and type I IFN signaling. Following injury, the meningeal transcriptome had largely returned to its pre-injury signature in young mice. In stark contrast, aged TBI mice still exhibited upregulation of immune-related genes and downregulation of genes involved in extracellular matrix remodeling. Overall, these findings illustrate the dynamic transcriptional response of the meninges to mild head trauma in youth and aging.
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Affiliation(s)
- Ashley C Bolte
- Department of Neuroscience, Center for Brain Immunology and Glia (BIG), University of Virginia School of MedicineCharlottesvilleUnited States,Department of Microbiology, Immunology and Cancer Biology, University of Virginia School of MedicineCharlottesvilleUnited States,Medical Scientist Training Program, University of Virginia School of MedicineCharlottesvilleUnited States,Immunology Training Program, University of Virginia School of MedicineCharlottesvilleUnited States
| | - Daniel A Shapiro
- Department of Neuroscience, Center for Brain Immunology and Glia (BIG), University of Virginia School of MedicineCharlottesvilleUnited States
| | - Arun B Dutta
- Medical Scientist Training Program, University of Virginia School of MedicineCharlottesvilleUnited States,Department of Biochemistry and Molecular Genetics, University of Virginia School of MedicineCharlottesvilleUnited States
| | - Wei Feng Ma
- Medical Scientist Training Program, University of Virginia School of MedicineCharlottesvilleUnited States,Center for Public Health Genomics, University of Virginia School of MedicineCharlottesvilleUnited States
| | - Katherine R Bruch
- Department of Neuroscience, Center for Brain Immunology and Glia (BIG), University of Virginia School of MedicineCharlottesvilleUnited States
| | - Michael A Kovacs
- Department of Neuroscience, Center for Brain Immunology and Glia (BIG), University of Virginia School of MedicineCharlottesvilleUnited States,Department of Microbiology, Immunology and Cancer Biology, University of Virginia School of MedicineCharlottesvilleUnited States,Medical Scientist Training Program, University of Virginia School of MedicineCharlottesvilleUnited States,Immunology Training Program, University of Virginia School of MedicineCharlottesvilleUnited States
| | - Ana Royo Marco
- Department of Neuroscience, Center for Brain Immunology and Glia (BIG), University of Virginia School of MedicineCharlottesvilleUnited States,Department of Microbiology, Immunology and Cancer Biology, University of Virginia School of MedicineCharlottesvilleUnited States
| | - Hannah E Ennerfelt
- Department of Neuroscience, Center for Brain Immunology and Glia (BIG), University of Virginia School of MedicineCharlottesvilleUnited States
| | - John R Lukens
- Department of Neuroscience, Center for Brain Immunology and Glia (BIG), University of Virginia School of MedicineCharlottesvilleUnited States,Medical Scientist Training Program, University of Virginia School of MedicineCharlottesvilleUnited States,Immunology Training Program, University of Virginia School of MedicineCharlottesvilleUnited States
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50
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Aksoy O, Hantusch B, Kenner L. Emerging role of T3-binding protein μ-crystallin (CRYM) in health and disease. Trends Endocrinol Metab 2022; 33:804-816. [PMID: 36344381 DOI: 10.1016/j.tem.2022.09.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Revised: 09/30/2022] [Accepted: 09/30/2022] [Indexed: 11/06/2022]
Abstract
Thyroid hormones are essential metabolic and developmental regulators that exert a huge variety of effects in different organs. Triiodothyronine (T3) and thyroxine (T4) are synthesized in the thyroid gland and constitute unique iodine-containing hormones that are constantly regulated by a homeostatic feedback mechanism. T3/T4 activity in cells is mainly determined by specific transporters, cytosolic binding proteins, deiodinases (DIOs), and nuclear receptors. Modulation of intracellular T3/T4 level contributes to the maintenance of this regulatory feedback. μ-Crystallin (CRYM) is an important intracellular high-affinity T3-binding protein that buffers the amount of T3 freely available in the cytosol, thereby controlling its action. In this review, we focus on the molecular and pathological properties of CRYM in thyroid hormone signaling, with emphasis on its critical role in malignancies.
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Affiliation(s)
- Osman Aksoy
- Department of Pathology, Medical University of Vienna, Vienna, Austria
| | - Brigitte Hantusch
- Department of Pathology, Medical University of Vienna, Vienna, Austria
| | - Lukas Kenner
- Department of Pathology, Medical University of Vienna, Vienna, Austria; Center for Biomarker Research in Medicine (CBmed), Graz, Austria; Unit for Laboratory Animal Pathology, University of Veterinary Medicine Vienna, Vienna, Austria; Christian Doppler Laboratory for Applied Metabolomics (CDL-AM), Medical University of Vienna, Vienna, Austria.
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