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Kawabata S, Nakasa T, Nekomoto A, Yimiti D, Miyaki S, Adachi N. Osteophyte Cartilage as a Potential Source for Minced Cartilage Implantation: A Novel Approach for Articular Cartilage Repair in Osteoarthritis. Int J Mol Sci 2024; 25:5563. [PMID: 38791601 PMCID: PMC11122408 DOI: 10.3390/ijms25105563] [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: 04/23/2024] [Revised: 05/17/2024] [Accepted: 05/18/2024] [Indexed: 05/26/2024] Open
Abstract
Osteoarthritis (OA) is a common joint disorder characterized by cartilage degeneration, often leading to pain and functional impairment. Minced cartilage implantation (MCI) has emerged as a promising one-step alternative for large cartilage defects. However, the source of chondrocytes for MCI remains a challenge, particularly in advanced OA, as normal cartilage is scarce. We performed in vitro studies to evaluate the feasibility of MCI using osteophyte cartilage, which is present in patients with advanced OA. Osteophyte and articular cartilage samples were obtained from 22 patients who underwent total knee arthroplasty. Chondrocyte migration and proliferation were assessed using cartilage fragment/atelocollagen composites to compare the characteristics and regenerative potential of osteophytes and articular cartilage. Histological analysis revealed differences in cartilage composition between osteophytes and articular cartilage, with higher expression of type X collagen and increased chondrocyte proliferation in the osteophyte cartilage. Gene expression analysis identified distinct gene expression profiles between osteophytes and articular cartilage; the expression levels of COL2A1, ACAN, and SOX9 were not significantly different. Chondrocytes derived from osteophyte cartilage exhibit enhanced proliferation, and glycosaminoglycan production is increased in both osteophytes and articular cartilage. Osteophyte cartilage may serve as a viable alternative source of MCI for treating large cartilage defects in OA.
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Affiliation(s)
- Shingo Kawabata
- Department of Orthopaedic Surgery, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima City 734-8551, Japan; (S.K.); (A.N.); (D.Y.); (N.A.)
| | - Tomoyuki Nakasa
- Department of Artificial Joints and Biomaterials, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima City 734-8551, Japan
| | - Akinori Nekomoto
- Department of Orthopaedic Surgery, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima City 734-8551, Japan; (S.K.); (A.N.); (D.Y.); (N.A.)
| | - Dilimulati Yimiti
- Department of Orthopaedic Surgery, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima City 734-8551, Japan; (S.K.); (A.N.); (D.Y.); (N.A.)
| | - Shigeru Miyaki
- Medical Center for Translational and Clinical Research, Hiroshima University Hospital, Hiroshima City 734-8551, Japan;
| | - Nobuo Adachi
- Department of Orthopaedic Surgery, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima City 734-8551, Japan; (S.K.); (A.N.); (D.Y.); (N.A.)
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2
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Dupré N, Drieu A, Joutel A. Pathophysiology of cerebral small vessel disease: a journey through recent discoveries. J Clin Invest 2024; 134:e172841. [PMID: 38747292 PMCID: PMC11093606 DOI: 10.1172/jci172841] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/19/2024] Open
Abstract
Cerebral small vessel disease (cSVD) encompasses a heterogeneous group of age-related small vessel pathologies that affect multiple regions. Disease manifestations range from lesions incidentally detected on neuroimaging (white matter hyperintensities, small deep infarcts, microbleeds, or enlarged perivascular spaces) to severe disability and cognitive impairment. cSVD accounts for approximately 25% of ischemic strokes and the vast majority of spontaneous intracerebral hemorrhage and is also the most important vascular contributor to dementia. Despite its high prevalence and potentially long therapeutic window, there are still no mechanism-based treatments. Here, we provide an overview of the recent advances in this field. We summarize recent data highlighting the remarkable continuum between monogenic and multifactorial cSVDs involving NOTCH3, HTRA1, and COL4A1/A2 genes. Taking a vessel-centric view, we discuss possible cause-and-effect relationships between risk factors, structural and functional vessel changes, and disease manifestations, underscoring some major knowledge gaps. Although endothelial dysfunction is rightly considered a central feature of cSVD, the contributions of smooth muscle cells, pericytes, and other perivascular cells warrant continued investigation.
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Affiliation(s)
- Nicolas Dupré
- Université Paris Cité, Institute of Psychiatry and Neuroscience of Paris (IPNP), INSERM U1266, Paris, France
| | - Antoine Drieu
- Université Paris Cité, Institute of Psychiatry and Neuroscience of Paris (IPNP), INSERM U1266, Paris, France
| | - Anne Joutel
- Université Paris Cité, Institute of Psychiatry and Neuroscience of Paris (IPNP), INSERM U1266, Paris, France
- GHU-Paris Psychiatrie et Neurosciences, Hôpital Sainte Anne, Paris, France
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3
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Cozzitorto C, Peltz Z, Flores LM, Della Santina L, Mao M, Gould DB. Evaluating neural crest cell migration in a Col4a1 mutant mouse model of ocular anterior segment dysgenesis. Cells Dev 2024:203926. [PMID: 38729574 DOI: 10.1016/j.cdev.2024.203926] [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: 02/22/2024] [Revised: 05/02/2024] [Accepted: 05/06/2024] [Indexed: 05/12/2024]
Abstract
The periocular mesenchyme (POM) is a transient migratory embryonic tissue derived from neural crest cells (NCCs) and paraxial mesoderm that gives rise to most of the structures in front of the eye. Morphogenetic defects of these structures can impair aqueous humor outflow, leading to elevated intraocular pressure and glaucoma. Mutations in collagen type IV alpha 1 (COL4A1) and alpha 2 (COL4A2) cause Gould syndrome - a multisystem disorder often characterized by variable cerebrovascular, ocular, renal, and neuromuscular manifestations. Approximately one-third of individuals with COL4A1 and COL4A2 mutations have ocular anterior segment dysgenesis (ASD), including congenital glaucoma resulting from abnormalities of POM-derived structures. POM differentiation has been a major focus of ASD research, but the underlying cellular mechanisms are still unclear. Moreover, earlier events including NCC migration and survival defects have been implicated in ASD; however, their roles are not as well understood. Vascular defects are among the most common consequences of COL4A1 and COL4A2 mutations and can influence NCC survival and migration. We therefore hypothesized that NCC migration might be impaired by COL4A1 and COL4A2 mutations. In this study, we used 3D confocal microscopy, gross morphology, and quantitative analyses to test NCC migration in Col4a1 mutant mice. We show that homozygous Col4a1 mutant embryos have severe embryonic growth retardation and lethality, and we identified a potential maternal effect on embryo development. Cerebrovascular defects in heterozygous Col4a1 mutant embryos were present as early as E9.0, showing abnormal cerebral vasculature plexus remodeling compared to controls. We detected abnormal NCC migration within the diencephalic stream and the POM in heterozygous Col4a1 mutants whereby mutant NCCs formed smaller diencephalic migratory streams and POMs. In these settings, migratory NCCs within the diencephalic stream and POM localize farther away from the developing vasculature. Our results show for the first time that Col4a1 mutations lead to cranial NCCs migratory defects in the context of early onset defective angiogenesis without affecting cell numbers, possibly impacting the relation between NCCs and the blood vessels during ASD development.
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Affiliation(s)
- Corinna Cozzitorto
- Department of Ophthalmology, University of California, San Francisco, CA 94158, United States.
| | - Zoe Peltz
- Department of Ophthalmology, University of California, San Francisco, CA 94158, United States
| | - Lourdes M Flores
- Department of Ophthalmology, University of California, San Francisco, CA 94158, United States
| | - Luca Della Santina
- Department of Ophthalmology, University of California, San Francisco, CA 94158, United States.
| | - Mao Mao
- Department of Ophthalmology, University of California, San Francisco, CA 94158, United States
| | - Douglas B Gould
- Department of Ophthalmology, University of California, San Francisco, CA 94158, United States; Department of Anatomy, Cardiovascular Research Institute, Bakar Aging Research Institute, and Institute for Human Genetics, University of California, San Francisco, United States.
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Chen Z, Zhu M, Liu D, Wu M, Niu P, Yu Y, Ding C, Yu S. Occludin and collagen IV degradation mediated by the T9SS effector SspA contributes to blood-brain barrier damage in ducks during Riemerella anatipestifer infection. Vet Res 2024; 55:49. [PMID: 38594770 PMCID: PMC11005161 DOI: 10.1186/s13567-024-01304-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: 09/19/2023] [Accepted: 02/22/2024] [Indexed: 04/11/2024] Open
Abstract
Riemerella anatipestifer infection is characterized by meningitis with neurological symptoms in ducklings and has adversely affected the poultry industry. R. anatipestifer strains can invade the duck brain to cause meningitis and neurological symptoms, but the underlying mechanism remains unknown. In this study, we showed that obvious clinical symptoms, an increase in blood‒brain barrier (BBB) permeability, and the accumulation of inflammatory cytokines occurred after intravenous infection with the Yb2 strain but not the mutant strain Yb2ΔsspA, indicating that Yb2 infection can lead to cerebrovascular dysfunction and that the type IX secretion system (T9SS) effector SspA plays a critical role in this pathological process. In addition, we showed that Yb2 infection led to rapid degradation of occludin (a tight junction protein) and collagen IV (a basement membrane protein), which contributed to endothelial barrier disruption. The interaction between SspA and occludin was confirmed by coimmunoprecipitation. Furthermore, we found that SspA was the main enzyme mediating occludin and collagen IV degradation. These data indicate that R. anatipestifer SspA mediates occludin and collagen IV degradation, which functions in BBB disruption in R. anatipestifer-infected ducks. These findings establish the molecular mechanisms by which R. anatipestifer targets duckling endothelial cell junctions and provide new perspectives for the treatment and prevention of R. anatipestifer infection.
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Affiliation(s)
- Zongchao Chen
- Jiangsu Agri-Animal Husbandry Vocational College, Veterinary Bio-Pharmaceutical, Jiangsu Key Laboratory for High-Tech Research and Development of Veterinary Biopharmaceuticals, Taizhou, Jiangsu, China
- Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences (CAAS), Shanghai, China
| | - Min Zhu
- Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences (CAAS), Shanghai, China
| | - Dan Liu
- Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences (CAAS), Shanghai, China
| | - Mengsi Wu
- Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences (CAAS), Shanghai, China
| | - Pengfei Niu
- Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences (CAAS), Shanghai, China
| | - Yang Yu
- Jiangsu Agri-Animal Husbandry Vocational College, Veterinary Bio-Pharmaceutical, Jiangsu Key Laboratory for High-Tech Research and Development of Veterinary Biopharmaceuticals, Taizhou, Jiangsu, China
| | - Chan Ding
- Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences (CAAS), Shanghai, China.
| | - Shengqing Yu
- Jiangsu Agri-Animal Husbandry Vocational College, Veterinary Bio-Pharmaceutical, Jiangsu Key Laboratory for High-Tech Research and Development of Veterinary Biopharmaceuticals, Taizhou, Jiangsu, China.
- Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences (CAAS), Shanghai, China.
- Yangzhou You-Jia-Chuang Biotechnology Co., Ltd., Yangzhou, China.
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Dupré N, Gueniot F, Domenga-Denier V, Dubosclard V, Nilles C, Hill-Eubanks D, Morgenthaler-Roth C, Nelson MT, Keime C, Danglot L, Joutel A. Protein aggregates containing wild-type and mutant NOTCH3 are major drivers of arterial pathology in CADASIL. J Clin Invest 2024; 134:e175789. [PMID: 38386425 PMCID: PMC11014667 DOI: 10.1172/jci175789] [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: 09/19/2023] [Accepted: 02/20/2024] [Indexed: 02/24/2024] Open
Abstract
Loss of arterial smooth muscle cells (SMCs) and abnormal accumulation of the extracellular domain of the NOTCH3 receptor (Notch3ECD) are the 2 core features of CADASIL, a common cerebral small vessel disease caused by highly stereotyped dominant mutations in NOTCH3. Yet the relationship between NOTCH3 receptor activity, Notch3ECD accumulation, and arterial SMC loss has remained elusive, hampering the development of disease-modifying therapies. Using dedicated histopathological and multiscale imaging modalities, we could detect and quantify previously undetectable CADASIL-driven arterial SMC loss in the CNS of mice expressing the archetypal Arg169Cys mutation. We found that arterial pathology was more severe and Notch3ECD accumulation greater in transgenic mice overexpressing the mutation on a wild-type Notch3 background (TgNotch3R169C) than in knockin Notch3R170C/R170C mice expressing this mutation without a wild-type Notch3 copy. Notably, expression of Notch3-regulated genes was essentially unchanged in TgNotch3R169C arteries. We further showed that wild-type Notch3ECD coaggregated with mutant Notch3ECD and that elimination of 1 copy of wild-type Notch3 in TgNotch3R169C was sufficient to attenuate Notch3ECD accumulation and arterial pathology. These findings suggest that Notch3ECD accumulation, involving mutant and wild-type NOTCH3, is a major driver of arterial SMC loss in CADASIL, paving the way for NOTCH3-lowering therapeutic strategies.
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Affiliation(s)
- Nicolas Dupré
- Université Paris Cité, Institute of Psychiatry and Neuroscience of Paris (IPNP), INSERM U1266, Paris, France
| | - Florian Gueniot
- Université Paris Cité, Institute of Psychiatry and Neuroscience of Paris (IPNP), INSERM U1266, Paris, France
| | - Valérie Domenga-Denier
- Université Paris Cité, Institute of Psychiatry and Neuroscience of Paris (IPNP), INSERM U1266, Paris, France
| | - Virginie Dubosclard
- Université Paris Cité, Institute of Psychiatry and Neuroscience of Paris (IPNP), INSERM U1266, Paris, France
| | - Christelle Nilles
- Université Paris Cité, Institute of Psychiatry and Neuroscience of Paris (IPNP), INSERM U1266, Paris, France
| | - David Hill-Eubanks
- Department of Pharmacology, College of Medicine, University of Vermont, Burlington, Vermont, USA
| | - Christelle Morgenthaler-Roth
- Institut de Génétique et de Biologie Moléculaire et Cellulaire, CNRS UMR 7104, INSERM U1258, Université de Strasbourg, Illkirch, France
| | - Mark T. Nelson
- Department of Pharmacology, College of Medicine, University of Vermont, Burlington, Vermont, USA
- Division of Cardiovascular Sciences, University of Manchester, Manchester, United Kingdom
| | - Céline Keime
- Institut de Génétique et de Biologie Moléculaire et Cellulaire, CNRS UMR 7104, INSERM U1258, Université de Strasbourg, Illkirch, France
| | - Lydia Danglot
- Université Paris Cité, Institute of Psychiatry and Neuroscience of Paris (IPNP), INSERM U1266, Paris, France
| | - Anne Joutel
- Université Paris Cité, Institute of Psychiatry and Neuroscience of Paris (IPNP), INSERM U1266, Paris, France
- Department of Pharmacology, College of Medicine, University of Vermont, Burlington, Vermont, USA
- GHU Paris Psychiatrie et Neurosciences, Hôpital Sainte Anne, Paris, France
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6
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Markasz L, Mobini-Far H, Sindelar R. Collagen type IV alpha 1 chain (COL4A1) expression in the developing human lung. BMC Pulm Med 2024; 24:75. [PMID: 38331745 PMCID: PMC10851591 DOI: 10.1186/s12890-024-02875-4] [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: 10/11/2023] [Accepted: 01/22/2024] [Indexed: 02/10/2024] Open
Abstract
BACKGROUND Collagen type IV alpha 1 chain (COL4A1) in the basement membrane is an important component during lung development, as suggested from animal models where COL4A1 has been shown to regulate alveolarization and angiogenesis. Less is known about its role in human lung development. Our aim was to study COL4A1 expression in preterm infants with different lung maturational and clinical features. METHODS COL4A1 expression in 115 lung samples from newborn infants (21-41 weeks' gestational age; 0-228 days' postnatal age [PNA]) was studied by immunohistochemistry combined with digital image analysis. Cluster analysis was performed to find subgroups according to immunohistologic and clinical data. RESULTS Patients were automatically categorized into 4 Groups depending on their COL4A1 expression. Expression of COL4A1 was mainly extracellular in Group 1, low in Group 2, intracellular in Group 3, and both extra- and intracellular in Group 4. Intracellular/extracellular ratio of COL4A1 expression related to PNA showed a distinctive postnatal maturational pattern on days 1-7, where intracellular expression of COL4A1 was overrepresented in extremely preterm infants. CONCLUSIONS COL4A1 expression seems to be highly dynamic during the postnatal life due to a possible rapid remodeling of the basement membrane. Intracellular accumulation of COL4A1 in the lungs of extremely premature infants occurs more frequently between 1 and 7 postnatal days than during the first 24 hours. In view of the lung arrest described in extremely preterm infants, the pathological and/or developmental role of postnatally increased intracellular COL4A1 as marker for basement membrane turnover, needs to be further investigated.
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Affiliation(s)
- Laszlo Markasz
- Department of Women's and Children's Health, Uppsala University, Uppsala, SE-751 85, Sweden.
| | - Hamid Mobini-Far
- Department of Pathology, Uppsala University Hospital, Uppsala, Sweden
| | - Richard Sindelar
- Department of Women's and Children's Health, Uppsala University, Uppsala, SE-751 85, Sweden
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Jones RA, Trejo B, Sil P, Little KA, Pasolli HA, Joyce B, Posfai E, Devenport D. An mTurq2-Col4a1 mouse model allows for live visualization of mammalian basement membrane development. J Cell Biol 2024; 223:e202309074. [PMID: 38051393 PMCID: PMC10697824 DOI: 10.1083/jcb.202309074] [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: 09/25/2023] [Revised: 11/03/2023] [Accepted: 11/15/2023] [Indexed: 12/07/2023] Open
Abstract
Basement membranes (BMs) are specialized sheets of extracellular matrix that underlie epithelial and endothelial tissues. BMs regulate the traffic of cells and molecules between compartments, and participate in signaling, cell migration, and organogenesis. The dynamics of mammalian BMs, however, are poorly understood, largely due to a lack of models in which core BM components are endogenously labeled. Here, we describe the mTurquoise2-Col4a1 mouse in which we fluorescently tag collagen IV, the main component of BMs. Using an innovative planar-sagittal live imaging technique to visualize the BM of developing skin, we directly observe BM deformation during hair follicle budding and basal progenitor cell divisions. The BM's inherent pliability enables dividing cells to remain attached to and deform the BM, rather than lose adhesion as generally thought. Using FRAP, we show BM collagen IV is extremely stable, even during periods of rapid epidermal growth. These findings demonstrate the utility of the mTurq2-Col4a1 mouse to shed new light on mammalian BM developmental dynamics.
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Affiliation(s)
- Rebecca A. Jones
- Department of Molecular Biology, Princeton University, Princeton, NJ, USA
| | - Brandon Trejo
- Department of Molecular Biology, Princeton University, Princeton, NJ, USA
| | - Parijat Sil
- Department of Molecular Biology, Princeton University, Princeton, NJ, USA
| | | | - H. Amalia Pasolli
- Electron Microscopy Resource Center, The Rockefeller University, New York, NY, USA
| | - Bradley Joyce
- Department of Molecular Biology, Princeton University, Princeton, NJ, USA
| | - Eszter Posfai
- Department of Molecular Biology, Princeton University, Princeton, NJ, USA
| | - Danelle Devenport
- Department of Molecular Biology, Princeton University, Princeton, NJ, USA
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Uemura M, Tanaka N, Ando S, Yanagihara T, Onodera O. Missense Variants in COL4A1/2 Are Associated with Cerebral Aneurysms: A Case Report and Literature Review. Neurol Int 2024; 16:226-238. [PMID: 38392956 PMCID: PMC10892350 DOI: 10.3390/neurolint16010015] [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: 12/09/2023] [Revised: 01/15/2024] [Accepted: 01/16/2024] [Indexed: 02/25/2024] Open
Abstract
BACKGROUND Although cerebral aneurysm (CA) is a defining complication of COL4A1/2-related vasculopathy, the specific factors influencing its onset remain uncertain. This study aimed to identify and analyze these factors. METHODS We described a family presenting with a novel variant of the COL4A1 gene complicated with CA. Concurrently, an exhaustive review of previously documented patients with COL4A1/2-related vasculopathy was conducted by sourcing data from PubMed, Web of Science, Google Scholar, and Ichushi databases. We compared the variant types and locations between patients with CA (positive group) and those without CA (negative group). RESULTS This study included 53 COL4A1/2 variants from 76 patients. Except for one start codon variant, all the identified variants in CA were missense variants. Otherwise, CA was not associated with other clinical manifestations, such as small-vessel disease or other large-vessel abnormalities. A higher frequency of missense variants (95.5% vs. 58.1%, p = 0.0035) was identified in the CA-positive group. CONCLUSIONS CA development appears to necessitate qualitative alterations in COL4A1/2, and the underlying mechanism seems independent of small-vessel disease or other large-vessel anomalies. Our findings suggest that a meticulous evaluation of CA is necessary when missense variants in COL4A1/2 are identified.
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Affiliation(s)
- Masahiro Uemura
- Department of Neurology, Brain Research Institute, Niigata University, Niigata 951-8585, Japan (O.O.)
| | - Natsuki Tanaka
- Department of Neurology, Tane General Hospital, Osaka 550-0025, Japan
| | - Shoichiro Ando
- Department of Neurology, Brain Research Institute, Niigata University, Niigata 951-8585, Japan (O.O.)
| | | | - Osamu Onodera
- Department of Neurology, Brain Research Institute, Niigata University, Niigata 951-8585, Japan (O.O.)
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Lartey NL, van der Ent M, Alonzo R, Chen D, King PD. A temporally-restricted pattern of endothelial cell collagen 4 alpha 1 expression during embryonic development determined with a novel knockin Col4a1-P2A-eGFP mouse line. Genesis 2024; 62:e23539. [PMID: 37501352 PMCID: PMC10817998 DOI: 10.1002/dvg.23539] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2023] [Revised: 06/29/2023] [Accepted: 07/18/2023] [Indexed: 07/29/2023]
Abstract
Classical collagen type IV comprising of a heterotrimer of two collagen IV alpha 1 chains and one collagen IV alpha 2 chain is the principal type of collagen synthesized by endothelial cells (EC) and is a major constituent of vascular basement membranes. In mouse and man, mutations in genes that encode collagen IV alpha 1 and alpha 2 result in vascular dysfunction. In addition, mutations in genes that encode the Ephrin receptor B4 (EPHB4) and the p120 Ras GTPase-activating protein (RASA1) that cause increased activation of the Ras mitogen-activated protein kinase (MAPK) signaling pathway in EC result in vascular dysfunction as a consequence of impaired export of collagen IV. To understand the pathogenesis of collagen IV-related vascular diseases and phenotypes it is necessary to identify at which times collagen IV is actively synthesized by EC. For this purpose, we used CRISPR/Cas9 targeting in mice to include immediately after the terminal Col4a1 codon a sequence that specifies a P2A peptide followed by enhanced green fluorescent protein (eGFP). Analysis of eGFP expression in Col4a1-P2A-eGFP mice revealed active embryonic EC synthesis of collagen IV alpha 1 through mid to late gestation followed by a sharp decline before birth. These results provide a contextual framework for understanding the basis for the varied vascular abnormalities resulting from perturbation of EC expression and export of functional collagen IV.
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Affiliation(s)
- Nathaniel L. Lartey
- Department of Microbiology and Immunology, University of Michigan Medical School, Ann Arbor, Michigan 48109
- These authors contributed equally
| | - Martijn van der Ent
- Department of Microbiology and Immunology, University of Michigan Medical School, Ann Arbor, Michigan 48109
- These authors contributed equally
| | - Roxann Alonzo
- Department of Microbiology and Immunology, University of Michigan Medical School, Ann Arbor, Michigan 48109
| | - Di Chen
- Department of Microbiology and Immunology, University of Michigan Medical School, Ann Arbor, Michigan 48109
| | - Philip D. King
- Department of Microbiology and Immunology, University of Michigan Medical School, Ann Arbor, Michigan 48109
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Bordini M, Mazzoni M, Di Nunzio M, Zappaterra M, Sirri F, Meluzzi A, Petracci M, Soglia F. Time course evaluation of collagen type IV in Pectoralis major muscles of broiler chickens selected for different growth-rates. Poult Sci 2024; 103:103179. [PMID: 37931400 PMCID: PMC10652102 DOI: 10.1016/j.psj.2023.103179] [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: 07/28/2023] [Revised: 09/25/2023] [Accepted: 10/06/2023] [Indexed: 11/08/2023] Open
Abstract
Collagen type IV (COL4) is one of the major components of animals' and humans' basement membranes of several tissues, such as skeletal muscles and vascular endothelia. Alterations in COL4 assembly and secretion are associated to muscular disorders in humans and animals among which growth-related abnormalities such as white striping and wooden breast affecting Pectoralis major muscles (PMs) in modern fast-growing (FG) chickens. Considering the high prevalence of these myopathies in FG broilers and that a worsening is observed as the bird slaughter age is increased, the present study was intended to evaluate the distribution and the expression level of COL4 protein and its coding genes in PMs of FG broilers at different stages of muscle development (i.e., 7, 14, 21, 28, 35, and 42 d of age). Medium-growing (MG) chickens have been considered as the control group in consideration of the lower selection pressure on breast muscle growth rate and hypertrophy. Briefly, 5 PM/sampling time/genotype were selected for western blot, immunohistochemistry (IHC), and gene expression analyses. The normalized expression levels of COL4 coding genes showed an overexpression of COL4A2 in FG than MG at d 28, as well as a significant decrease in its expression over their rearing period. Overall, results obtained through the gene expression analysis suggested that selection for the hypertrophic growth of FG broilers may have led to an altered regulation of fibroblast proliferation and COL4 synthesis. Moreover, western blot and IHC analyses suggested an altered secretion and/or degradation of COL4 protein in FG broilers, as evidenced by the fluctuating trend of 2 bands observed in FG over time. In view of the above, the present research supports the evidence about a potential aberrant synthesis and/or degradation of COL4 and corroborates the hypothesis regarding a likely involvement of COL4 in the series of events underlying the growth-related abnormalities in modern FG broilers.
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Affiliation(s)
- Martina Bordini
- Department of Agricultural and Food Sciences, Alma Mater Studiorum - University of Bologna, Bologna, Italy
| | - Maurizio Mazzoni
- Department of Veterinary Medical Sciences, Alma Mater Studiorum - University of Bologna, Bologna, Italy
| | - Mattia Di Nunzio
- Department of Food, Environmental and Nutritional Sciences (Defens), University of Milan, Milan, 20133, Italy
| | - Martina Zappaterra
- Department of Agricultural and Food Sciences, Alma Mater Studiorum - University of Bologna, Bologna, Italy
| | - Federico Sirri
- Department of Agricultural and Food Sciences, Alma Mater Studiorum - University of Bologna, Bologna, Italy
| | - Adele Meluzzi
- Department of Agricultural and Food Sciences, Alma Mater Studiorum - University of Bologna, Bologna, Italy
| | - Massimiliano Petracci
- Department of Agricultural and Food Sciences, Alma Mater Studiorum - University of Bologna, Bologna, Italy.
| | - Francesca Soglia
- Department of Agricultural and Food Sciences, Alma Mater Studiorum - University of Bologna, Bologna, Italy
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Al-Thani M, Goodwin-Trotman M, Bell S, Patel K, Fleming LK, Vilain C, Abramowicz M, Allan SM, Wang T, Cader MZ, Horsburgh K, Van Agtmael T, Sinha S, Markus HS, Granata A. A novel human iPSC model of COL4A1/A2 small vessel disease unveils a key pathogenic role of matrix metalloproteinases. Stem Cell Reports 2023; 18:2386-2399. [PMID: 37977146 PMCID: PMC10724071 DOI: 10.1016/j.stemcr.2023.10.014] [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: 02/17/2023] [Revised: 10/19/2023] [Accepted: 10/20/2023] [Indexed: 11/19/2023] Open
Abstract
Cerebral small vessel disease (SVD) affects the small vessels in the brain and is a leading cause of stroke and dementia. Emerging evidence supports a role of the extracellular matrix (ECM), at the interface between blood and brain, in the progression of SVD pathology, but this remains poorly characterized. To address ECM role in SVD, we developed a co-culture model of mural and endothelial cells using human induced pluripotent stem cells from patients with COL4A1/A2 SVD-related mutations. This model revealed that these mutations induce apoptosis, migration defects, ECM remodeling, and transcriptome changes in mural cells. Importantly, these mural cell defects exert a detrimental effect on endothelial cell tight junctions through paracrine actions. COL4A1/A2 models also express high levels of matrix metalloproteinases (MMPs), and inhibiting MMP activity partially rescues the ECM abnormalities and mural cell phenotypic changes. These data provide a basis for targeting MMP as a therapeutic opportunity in SVD.
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Affiliation(s)
- Maha Al-Thani
- Department of Clinical Neurosciences, Victor Phillip Dahdaleh Heart and Lung Research Institute, University of Cambridge and Royal Papworth Hospital, Cambridge, UK
| | - Mary Goodwin-Trotman
- Department of Clinical Neurosciences, Victor Phillip Dahdaleh Heart and Lung Research Institute, University of Cambridge and Royal Papworth Hospital, Cambridge, UK
| | - Steven Bell
- Department of Clinical Neurosciences, Victor Phillip Dahdaleh Heart and Lung Research Institute, University of Cambridge and Royal Papworth Hospital, Cambridge, UK
| | - Krushangi Patel
- Department of Clinical Neurosciences, Victor Phillip Dahdaleh Heart and Lung Research Institute, University of Cambridge and Royal Papworth Hospital, Cambridge, UK
| | - Lauren K Fleming
- School of Cardiovascular and Metabolic Health, University of Glasgow, Glasgow, UK
| | - Catheline Vilain
- Department of Genetics, Hôpital Erasme, ULB Center of Human Genetics, Universite Libre de Bruxelles, Bruxelles, Belgium
| | - Marc Abramowicz
- Department of Genetics, Hôpital Erasme, ULB Center of Human Genetics, Universite Libre de Bruxelles, Bruxelles, Belgium
| | - Stuart M Allan
- Division of Neuroscience, School of Biological Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester, UK
| | - Tao Wang
- Geoffrey Jefferson Brain Research Centre, Manchester Academic Health Science Centre, Northern Care Alliance NHS Foundation Trust, The University of Manchester, Manchester, UK; Division of Evolution, Infection and Genomics, School of Biological Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester, UK
| | - M Zameel Cader
- Nuffield Department of Clinical Neurosciences, Kavli Institute of Nanoscience Discovery, Dorothy Crowfoot Hodgkin Building, Sherrington Road, University of Oxford, Oxford, UK
| | - Karen Horsburgh
- Centre for Discovery Brain Sciences, University of Edinburgh, Edinburgh, UK
| | - Tom Van Agtmael
- School of Cardiovascular and Metabolic Health, University of Glasgow, Glasgow, UK
| | - Sanjay Sinha
- Wellcome-MRC Cambridge Stem Cell Institute, Jeffrey Cheah Biomedical Centre, University of Cambridge, Cambridge, UK
| | - Hugh S Markus
- Department of Neurology, Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK
| | - Alessandra Granata
- Department of Clinical Neurosciences, Victor Phillip Dahdaleh Heart and Lung Research Institute, University of Cambridge and Royal Papworth Hospital, Cambridge, UK.
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12
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Skaggs C, Nick S, Patricelli C, Bond L, Woods K, Woodbury L, Oxford JT, Pu X. Effects of Doxorubicin on Extracellular Matrix Regulation in Primary Cardiac Fibroblasts from Mice. BMC Res Notes 2023; 16:340. [PMID: 37974221 PMCID: PMC10655342 DOI: 10.1186/s13104-023-06621-7] [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: 09/15/2023] [Accepted: 11/07/2023] [Indexed: 11/19/2023] Open
Abstract
OBJECTIVE Doxorubicin (DOX) is a highly effective chemotherapeutic used to treat many adult and pediatric cancers. However, its use is limited due to a dose-dependent cardiotoxicity, which can lead to lethal cardiomyopathy. In contrast to the extensive research efforts on toxic effects of DOX in cardiomyocytes, its effects and mechanisms on cardiac extracellular matrix (ECM) homeostasis and remodeling are poorly understood. In this study, we examined the potential effects of DOX on cardiac ECM to further our mechanistic understanding of DOX-induced cardiotoxicity. RESULTS DOX-induced significant down-regulation of several ECM related genes in primary cardiac fibroblasts, including Adamts1, Adamts5, Col4a1, Col4a2, Col5a1, Fbln1, Lama2, Mmp11, Mmp14, Postn, and TGFβ. Quantitative proteomics analysis revealed significant global changes in the fibroblast proteome following DOX treatment. A pathway analysis using iPathwayGuide of the differentially expressed proteins revealed changes in a list of biological pathways that involve cell adhesion, cytotoxicity, and inflammation. An apparent increase in Picrosirius red staining indicated that DOX-induced an increase in collagen production in cardiac primary fibroblasts after 3-day treatment. No significant changes in collagen organization nor glycoprotein production were observed.
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Affiliation(s)
- Cameron Skaggs
- Biomolecular Research Center, Boise State University, Boise, ID, 83725, USA
| | - Steve Nick
- Biomolecular Research Center, Boise State University, Boise, ID, 83725, USA
| | - Conner Patricelli
- Biomolecular Research Center, Boise State University, Boise, ID, 83725, USA
- Biomolecular Sciences Graduate Program, Boise State University, Boise, ID, 83725, USA
| | - Laura Bond
- Biomolecular Research Center, Boise State University, Boise, ID, 83725, USA
| | - Kali Woods
- Biomolecular Research Center, Boise State University, Boise, ID, 83725, USA
| | - Luke Woodbury
- Biomolecular Research Center, Boise State University, Boise, ID, 83725, USA
- Biomolecular Sciences Graduate Program, Boise State University, Boise, ID, 83725, USA
| | - Julia Thom Oxford
- Biomolecular Research Center, Boise State University, Boise, ID, 83725, USA
- Biomolecular Sciences Graduate Program, Boise State University, Boise, ID, 83725, USA
- Department of Biological Sciences, Boise State University, Boise, ID, 83725, USA
| | - Xinzhu Pu
- Biomolecular Research Center, Boise State University, Boise, ID, 83725, USA.
- Biomolecular Sciences Graduate Program, Boise State University, Boise, ID, 83725, USA.
- Department of Biological Sciences, Boise State University, Boise, ID, 83725, USA.
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13
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Yamasaki E, Thakore P, Ali S, Solano AS, Wang X, Gao X, Labelle-Dumais C, Chaumeil MM, Gould DB, Earley S. Impaired intracellular Ca 2+ signaling contributes to age-related cerebral small vessel disease in Col4a1 mutant mice. Sci Signal 2023; 16:eadi3966. [PMID: 37963192 PMCID: PMC10726848 DOI: 10.1126/scisignal.adi3966] [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: 04/23/2023] [Accepted: 10/25/2023] [Indexed: 11/16/2023]
Abstract
Humans and mice with mutations in COL4A1 and COL4A2 manifest hallmarks of cerebral small vessel disease (cSVD). Mice with a missense mutation in Col4a1 at amino acid 1344 (Col4a1+/G1344D) exhibit age-dependent intracerebral hemorrhages (ICHs) and brain lesions. Here, we report that this pathology was associated with the loss of myogenic vasoconstriction, an intrinsic vascular response essential for the autoregulation of cerebral blood flow. Electrophysiological analyses showed that the loss of myogenic constriction resulted from blunted pressure-induced smooth muscle cell (SMC) membrane depolarization. Furthermore, we found that dysregulation of membrane potential was associated with impaired Ca2+-dependent activation of large-conductance Ca2+-activated K+ (BK) and transient receptor potential melastatin 4 (TRPM4) cation channels linked to disruptions in sarcoplasmic reticulum (SR) Ca2+ signaling. Col4a1 mutations impair protein folding, which can cause SR stress. Treating Col4a1+/G1344D mice with 4-phenylbutyrate, a compound that promotes the trafficking of misfolded proteins and alleviates SR stress, restored SR Ca2+ signaling, maintained BK and TRPM4 channel activity, prevented loss of myogenic tone, and reduced ICHs. We conclude that alterations in SR Ca2+ handling that impair ion channel activity result in dysregulation of SMC membrane potential and loss of myogenic tone and contribute to age-related cSVD in Col4a1+/G1344D mice.
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Affiliation(s)
- Evan Yamasaki
- Department of Pharmacology, Center for Molecular and Cellular Signaling in the Cardiovascular System, University of Nevada, Reno School of Medicine, Reno, NV 89557-0318, USA
| | - Pratish Thakore
- Department of Pharmacology, Center for Molecular and Cellular Signaling in the Cardiovascular System, University of Nevada, Reno School of Medicine, Reno, NV 89557-0318, USA
| | - Sher Ali
- Department of Pharmacology, Center for Molecular and Cellular Signaling in the Cardiovascular System, University of Nevada, Reno School of Medicine, Reno, NV 89557-0318, USA
| | - Alfredo Sanchez Solano
- Department of Pharmacology, Center for Molecular and Cellular Signaling in the Cardiovascular System, University of Nevada, Reno School of Medicine, Reno, NV 89557-0318, USA
| | - Xiaowei Wang
- Department of Ophthalmology, UCSF School of Medicine, San Francisco, CA 94158, USA
| | - Xiao Gao
- Department of Physical Therapy and Rehabilitation Science, UCSF School of Medicine, San Francisco, CA 94143, USA
- Department of Radiology and Biomedical Imaging, UCSF School of Medicine, San Francisco, CA 94143, USA
| | | | - Myriam M. Chaumeil
- Department of Physical Therapy and Rehabilitation Science, UCSF School of Medicine, San Francisco, CA 94143, USA
- Department of Radiology and Biomedical Imaging, UCSF School of Medicine, San Francisco, CA 94143, USA
| | - Douglas B. Gould
- Department of Ophthalmology, UCSF School of Medicine, San Francisco, CA 94158, USA
- Department of Anatomy, Institute for Human Genetics, Cardiovascular Research Institute, Bakar Aging Research Institute, UCSF School of Medicine, San Francisco, CA 94158, USA
| | - Scott Earley
- Department of Pharmacology, Center for Molecular and Cellular Signaling in the Cardiovascular System, University of Nevada, Reno School of Medicine, Reno, NV 89557-0318, USA
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14
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Jones RA, Trejo B, Sil P, Little KA, Pasolli HA, Joyce B, Posfai E, Devenport D. A Window into Mammalian Basement Membrane Development: Insights from the mTurq2-Col4a1 Mouse Model. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.09.27.559396. [PMID: 37808687 PMCID: PMC10557719 DOI: 10.1101/2023.09.27.559396] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/10/2023]
Abstract
Basement membranes (BMs) are specialized sheets of extracellular matrix that underlie epithelial and endothelial tissues. BMs regulate traffic of cells and molecules between compartments, and participate in signaling, cell migration and organogenesis. The dynamics of mammalian BMs, however, are poorly understood, largely due to a lack of models in which core BM components are endogenously labelled. Here, we describe the mTurquoise2-Col4a1 mouse, in which we fluorescently tag collagen IV, the main component of BMs. Using an innovative Planar-Sagittal live imaging technique to visualize the BM of developing skin, we directly observe BM deformation during hair follicle budding and basal progenitor cell divisions. The BM's inherent pliability enables dividing cells to remain attached to and deform the BM, rather than lose adhesion as generally thought. Using FRAP, we show BM collagen IV is extremely stable, even during periods of rapid epidermal growth. These findings demonstrate the utility of the mTurq2-Col4a1 mouse to shed new light on mammalian BM developmental dynamics.
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Affiliation(s)
- Rebecca A Jones
- Department of Molecular Biology, Princeton University, Princeton, NJ 08544
| | - Brandon Trejo
- Department of Molecular Biology, Princeton University, Princeton, NJ 08544
| | - Parijat Sil
- Department of Molecular Biology, Princeton University, Princeton, NJ 08544
| | - Katherine A Little
- Department of Molecular Biology, Princeton University, Princeton, NJ 08544
| | - H Amalia Pasolli
- Electron Microscopy Resource Center, The Rockefeller University, 1230 York Ave., New York, NY 10065
| | - Bradley Joyce
- Department of Molecular Biology, Princeton University, Princeton, NJ 08544
| | - Eszter Posfai
- Department of Molecular Biology, Princeton University, Princeton, NJ 08544
| | - Danelle Devenport
- Department of Molecular Biology, Princeton University, Princeton, NJ 08544
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15
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Thakore P, Yamasaki E, Ali S, Sanchez Solano A, Labelle-Dumais C, Gao X, Chaumeil MM, Gould DB, Earley S. PI3K block restores age-dependent neurovascular coupling defects associated with cerebral small vessel disease. Proc Natl Acad Sci U S A 2023; 120:e2306479120. [PMID: 37607233 PMCID: PMC10467353 DOI: 10.1073/pnas.2306479120] [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: 04/20/2023] [Accepted: 07/17/2023] [Indexed: 08/24/2023] Open
Abstract
Neurovascular coupling (NVC), a vital physiological process that rapidly and precisely directs localized blood flow to the most active regions of the brain, is accomplished in part by the vast network of cerebral capillaries acting as a sensory web capable of detecting increases in neuronal activity and orchestrating the dilation of upstream parenchymal arterioles. Here, we report a Col4a1 mutant mouse model of cerebral small vessel disease (cSVD) with age-dependent defects in capillary-to-arteriole dilation, functional hyperemia in the brain, and memory. The fundamental defect in aged mutant animals was the depletion of the minor membrane phospholipid phosphatidylinositol 4,5 bisphosphate (PIP2) in brain capillary endothelial cells, leading to the loss of inwardly rectifying K+ (Kir2.1) channel activity. Blocking phosphatidylinositol-3-kinase (PI3K), an enzyme that diminishes the bioavailability of PIP2 by converting it to phosphatidylinositol (3, 4, 5)-trisphosphate (PIP3), restored Kir2.1 channel activity, capillary-to-arteriole dilation, and functional hyperemia. In longitudinal studies, chronic PI3K inhibition also improved the memory function of aged Col4a1 mutant mice. Our data suggest that PI3K inhibition is a viable therapeutic strategy for treating defective NVC and cognitive impairment associated with cSVD.
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Affiliation(s)
- Pratish Thakore
- Department of Pharmacology, Center for Molecular and Cellular Signaling in the Cardiovascular System University of Nevada, Reno School of Medicine, Reno, NV89557-0318
| | - Evan Yamasaki
- Department of Pharmacology, Center for Molecular and Cellular Signaling in the Cardiovascular System University of Nevada, Reno School of Medicine, Reno, NV89557-0318
| | - Sher Ali
- Department of Pharmacology, Center for Molecular and Cellular Signaling in the Cardiovascular System University of Nevada, Reno School of Medicine, Reno, NV89557-0318
| | - Alfredo Sanchez Solano
- Department of Pharmacology, Center for Molecular and Cellular Signaling in the Cardiovascular System University of Nevada, Reno School of Medicine, Reno, NV89557-0318
| | - Cassandre Labelle-Dumais
- Department of Ophthalmology and Anatomy, Institute for Human Genetics, University of California San Francisco School of Medicine, San Francisco, CA94143
| | - Xiao Gao
- Department of Physical Therapy and Rehabilitation Science, University of California, San Francisco, CA94158
- Department of Radiology and Biomedical Imaging, University of California, San Francisco, CA94143-0628
| | - Myriam M. Chaumeil
- Department of Physical Therapy and Rehabilitation Science, University of California, San Francisco, CA94158
- Department of Radiology and Biomedical Imaging, University of California, San Francisco, CA94143-0628
| | - Douglas B. Gould
- Department of Ophthalmology and Anatomy, Institute for Human Genetics, University of California San Francisco School of Medicine, San Francisco, CA94143
| | - Scott Earley
- Department of Pharmacology, Center for Molecular and Cellular Signaling in the Cardiovascular System University of Nevada, Reno School of Medicine, Reno, NV89557-0318
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16
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Thakore P, Yamasaki E, Ali S, Solano AS, Labelle-Dumais C, Gao X, Chaumeil MM, Gould DB, Earley S. PI3K block restores age-dependent neurovascular coupling defects associated with cerebral small vessel disease. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.03.03.531032. [PMID: 36945616 PMCID: PMC10028793 DOI: 10.1101/2023.03.03.531032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/10/2023]
Abstract
Neurovascular coupling (NVC), a vital physiological process that rapidly and precisely directs localized blood flow to the most active regions of the brain, is accomplished in part by the vast network of cerebral capillaries acting as a sensory web capable of detecting increases in neuronal activity and orchestrating the dilation of upstream parenchymal arterioles. Here, we report a Col4a1 mutant mouse model of cerebral small vessel disease (cSVD) with age-dependent defects in capillary-to-arteriole dilation, functional hyperemia in the brain, and memory. The fundamental defect in aged mutant animals was the depletion of the minor membrane phospholipid phosphatidylinositol 4,5 bisphosphate (PIP 2 ) in brain capillary endothelial cells, leading to the loss of inwardly rectifier K + (Kir2.1) channel activity. Blocking phosphatidylinositol-3-kinase (PI3K), an enzyme that diminishes the bioavailability of PIP 2 by converting it to phosphatidylinositol (3,4,5)-trisphosphate (PIP 3 ), restored Kir2.1 channel activity, capillary-to-arteriole dilation, and functional hyperemia. In longitudinal studies, chronic PI3K inhibition also improved the memory function of aged Col4a1 mutant mice. Our data suggest that PI3K inhibition is a viable therapeutic strategy for treating defective NVC and cognitive impairment associated with cSVD. One-sentence summary PI3K inhibition rescues neurovascular coupling defects in cerebral small vessel disease.
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17
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Du F, Shusta EV, Palecek SP. Extracellular matrix proteins in construction and function of in vitro blood-brain barrier models. FRONTIERS IN CHEMICAL ENGINEERING 2023. [DOI: 10.3389/fceng.2023.1130127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/22/2023] Open
Abstract
The blood-brain barrier (BBB) is a highly impermeable barrier separating circulating blood and brain tissue. A functional BBB is critical for brain health, and BBB dysfunction has been linked to the pathophysiology of diseases such as stroke and Alzheimer’s disease. A variety of models have been developed to study the formation and maintenance of the BBB, ranging from in vivo animal models to in vitro models consisting of primary cells or cells differentiated from human pluripotent stem cells (hPSCs). These models must consider the composition and source of the cellular components of the neurovascular unit (NVU), including brain microvascular endothelial cells (BMECs), brain pericytes, astrocytes, and neurons, and how these cell types interact. In addition, the non-cellular components of the BBB microenvironment, such as the brain vascular basement membrane (BM) that is in direct contact with the NVU, also play key roles in BBB function. Here, we review how extracellular matrix (ECM) proteins in the brain vascular BM affect the BBB, with a particular focus on studies using hPSC-derived in vitro BBB models, and discuss how future studies are needed to advance our understanding of how the ECM affects BBB models to improve model performance and expand our knowledge on the formation and maintenance of the BBB.
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18
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Yamasaki E, Ali S, Sanchez Solano A, Thakore P, Smith M, Wang X, Labelle-Dumais C, Gould DB, Earley S. Faulty TRPM4 channels underlie age-dependent cerebral vascular dysfunction in Gould syndrome. Proc Natl Acad Sci U S A 2023; 120:e2217327120. [PMID: 36693102 PMCID: PMC9945977 DOI: 10.1073/pnas.2217327120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Accepted: 12/27/2022] [Indexed: 01/25/2023] Open
Abstract
Gould syndrome is a rare multisystem disorder resulting from autosomal dominant mutations in the collagen-encoding genes COL4A1 and COL4A2. Human patients and Col4a1 mutant mice display brain pathology that typifies cerebral small vessel diseases (cSVDs), including white matter hyperintensities, dilated perivascular spaces, lacunar infarcts, microbleeds, and spontaneous intracerebral hemorrhage. The underlying pathogenic mechanisms are unknown. Using the Col4a1+/G394V mouse model, we found that vasoconstriction in response to internal pressure-the vascular myogenic response-is blunted in cerebral arteries from middle-aged (12 mo old) but not young adult (3 mo old) animals, revealing age-dependent cerebral vascular dysfunction. The defect in the myogenic response was associated with a significant decrease in depolarizing cation currents conducted by TRPM4 (transient receptor potential melastatin 4) channels in native cerebral artery smooth muscle cells (SMCs) isolated from mutant mice. The minor membrane phospholipid phosphatidylinositol 4,5 bisphosphate (PIP2) is necessary for TRPM4 activity. Dialyzing SMCs with PIP2 and selective blockade of phosphoinositide 3-kinase (PI3K), an enzyme that converts PIP2 to phosphatidylinositol (3, 4, 5)-trisphosphate (PIP3), restored TRPM4 currents. Acute inhibition of PI3K activity and blockade of transforming growth factor-beta (TGF-β) receptors also rescued the myogenic response, suggesting that hyperactivity of TGF-β signaling pathways stimulates PI3K to deplete PIP2 and impair TRPM4 channels. We conclude that age-related cerebral vascular dysfunction in Col4a1+/G394V mice is caused by the loss of depolarizing TRPM4 currents due to PIP2 depletion, revealing an age-dependent mechanism of cSVD.
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Affiliation(s)
- Evan Yamasaki
- Department of Pharmacology, Center for Molecular and Cellular Signaling in the Cardiovascular System, University of Nevada, Reno School of Medicine, Reno, NV89557-0318
| | - Sher Ali
- Department of Pharmacology, Center for Molecular and Cellular Signaling in the Cardiovascular System, University of Nevada, Reno School of Medicine, Reno, NV89557-0318
| | - Alfredo Sanchez Solano
- Department of Pharmacology, Center for Molecular and Cellular Signaling in the Cardiovascular System, University of Nevada, Reno School of Medicine, Reno, NV89557-0318
| | - Pratish Thakore
- Department of Pharmacology, Center for Molecular and Cellular Signaling in the Cardiovascular System, University of Nevada, Reno School of Medicine, Reno, NV89557-0318
| | - Megan Smith
- Departments of Ophthalmology, Institute for Human Genetics, UCSF School of Medicine, San Francisco, CA94158
| | - Xiaowei Wang
- Departments of Ophthalmology, Institute for Human Genetics, UCSF School of Medicine, San Francisco, CA94158
| | - Cassandre Labelle-Dumais
- Departments of Ophthalmology, Institute for Human Genetics, UCSF School of Medicine, San Francisco, CA94158
| | - Douglas B. Gould
- Departments of Ophthalmology, Institute for Human Genetics, UCSF School of Medicine, San Francisco, CA94158
- Department of Anatomy, Institute for Human Genetics, Cardiovascular Research Institute, Bakar Aging Research Institute, UCSF School of Medicine, San Francisco, CA94158
| | - Scott Earley
- Department of Pharmacology, Center for Molecular and Cellular Signaling in the Cardiovascular System, University of Nevada, Reno School of Medicine, Reno, NV89557-0318
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19
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Chen D, Van der Ent MA, Lartey NL, King PD. EPHB4-RASA1-Mediated Negative Regulation of Ras-MAPK Signaling in the Vasculature: Implications for the Treatment of EPHB4- and RASA1-Related Vascular Anomalies in Humans. Pharmaceuticals (Basel) 2023; 16:165. [PMID: 37259315 PMCID: PMC9959185 DOI: 10.3390/ph16020165] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Revised: 01/18/2023] [Accepted: 01/20/2023] [Indexed: 08/26/2023] Open
Abstract
Ephrin receptors constitute a large family of receptor tyrosine kinases in mammals that through interaction with cell surface-anchored ephrin ligands regulate multiple different cellular responses in numerous cell types and tissues. In the cardiovascular system, studies performed in vitro and in vivo have pointed to a critical role for Ephrin receptor B4 (EPHB4) as a regulator of blood and lymphatic vascular development and function. However, in this role, EPHB4 appears to act not as a classical growth factor receptor but instead functions to dampen the activation of the Ras-mitogen activated protein signaling (MAPK) pathway induced by other growth factor receptors in endothelial cells (EC). To inhibit the Ras-MAPK pathway, EPHB4 interacts functionally with Ras p21 protein activator 1 (RASA1) also known as p120 Ras GTPase-activating protein. Here, we review the evidence for an inhibitory role for an EPHB4-RASA1 interface in EC. We further discuss the mechanisms by which loss of EPHB4-RASA1 signaling in EC leads to blood and lymphatic vascular abnormalities in mice and the implications of these findings for an understanding of the pathogenesis of vascular anomalies in humans caused by mutations in EPHB4 and RASA1 genes. Last, we provide insights into possible means of drug therapy for EPHB4- and RASA1-related vascular anomalies.
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Affiliation(s)
| | | | | | - Philip D. King
- Department of Microbiology and Immunology, University of Michigan Medical School, Ann Arbor, MI 48109, USA
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20
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Branyan K, Labelle-Dumais C, Wang X, Hayashi G, Lee B, Peltz Z, Gorman S, Li BQ, Mao M, Gould DB. Elevated TGFβ signaling contributes to cerebral small vessel disease in mouse models of Gould syndrome. Matrix Biol 2023; 115:48-70. [PMID: 36435425 PMCID: PMC10393528 DOI: 10.1016/j.matbio.2022.11.007] [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: 06/26/2022] [Revised: 11/21/2022] [Accepted: 11/21/2022] [Indexed: 11/25/2022]
Abstract
Cerebral small vessel disease (CSVD) is a leading cause of stroke and vascular cognitive impairment and dementia. Studying monogenic CSVD can reveal pathways that are dysregulated in common sporadic forms of the disease and may represent therapeutic targets. Mutations in collagen type IV alpha 1 (COL4A1) and alpha 2 (COL4A2) cause highly penetrant CSVD as part of a multisystem disorder referred to as Gould syndrome. COL4A1 and COL4A2 form heterotrimers [a1α1α2(IV)] that are fundamental constituents of basement membranes. However, their functions are poorly understood and the mechanism(s) by which COL4A1 and COL4A2 mutations cause CSVD are unknown. We used histological, molecular, genetic, pharmacological, and in vivo imaging approaches to characterize central nervous system (CNS) vascular pathologies in Col4a1 mutant mouse models of monogenic CSVD to provide insight into underlying pathogenic mechanisms. We describe developmental CNS angiogenesis abnormalities characterized by impaired retinal vascular outgrowth and patterning, increased numbers of mural cells with abnormal morphologies, altered contractile protein expression in vascular smooth muscle cells (VSMCs) and age-related loss of arteriolar VSMCs in Col4a1 mutant mice. Importantly, we identified elevated TGFβ signaling as a pathogenic consequence of Col4a1 mutations and show that genetically suppressing TGFβ signaling ameliorated CNS vascular pathologies, including partial rescue of retinal vascular patterning defects, prevention of VSMC loss, and significant reduction of intracerebral hemorrhages in Col4a1 mutant mice aged up to 8 months. This study identifies a novel biological role for collagen α1α1α2(IV) as a regulator of TGFβ signaling and demonstrates that elevated TGFβ signaling contributes to CNS vascular pathologies caused by Col4a1 mutations. Our findings suggest that pharmacologically suppressing TGFβ signaling could reduce the severity of CSVD, and potentially other manifestations associated with Gould syndrome and have important translational implications that could extend to idiopathic forms of CSVD.
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Affiliation(s)
- Kayla Branyan
- Department of Ophthalmology, University of California, 555 Mission Bay Boulevard South, San Francisco, CA 94158, United States
| | - Cassandre Labelle-Dumais
- Department of Ophthalmology, University of California, 555 Mission Bay Boulevard South, San Francisco, CA 94158, United States
| | - Xiaowei Wang
- Department of Ophthalmology, University of California, 555 Mission Bay Boulevard South, San Francisco, CA 94158, United States
| | - Genki Hayashi
- Department of Ophthalmology, University of California, 555 Mission Bay Boulevard South, San Francisco, CA 94158, United States
| | - Bryson Lee
- Department of Ophthalmology, University of California, 555 Mission Bay Boulevard South, San Francisco, CA 94158, United States
| | - Zoe Peltz
- Department of Ophthalmology, University of California, 555 Mission Bay Boulevard South, San Francisco, CA 94158, United States
| | - Seán Gorman
- Department of Ophthalmology, University of California, 555 Mission Bay Boulevard South, San Francisco, CA 94158, United States
| | - Bo Qiao Li
- Department of Ophthalmology, University of California, 555 Mission Bay Boulevard South, San Francisco, CA 94158, United States
| | - Mao Mao
- Department of Ophthalmology, University of California, 555 Mission Bay Boulevard South, San Francisco, CA 94158, United States
| | - Douglas B Gould
- Department of Ophthalmology, University of California, 555 Mission Bay Boulevard South, San Francisco, CA 94158, United States; Department of Anatomy, Cardiovascular Research Institute, Bakar Aging Research Institute, and Institute for Human Genetics, University of California, San Francisco, United States.
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21
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Tewari BP, Chaunsali L, Prim CE, Sontheimer H. A glial perspective on the extracellular matrix and perineuronal net remodeling in the central nervous system. Front Cell Neurosci 2022; 16:1022754. [PMID: 36339816 PMCID: PMC9630365 DOI: 10.3389/fncel.2022.1022754] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Accepted: 09/23/2022] [Indexed: 11/18/2022] Open
Abstract
A structural scaffold embedding brain cells and vasculature is known as extracellular matrix (ECM). The physical appearance of ECM in the central nervous system (CNS) ranges from a diffused, homogeneous, amorphous, and nearly omnipresent matrix to highly organized distinct morphologies such as basement membranes and perineuronal nets (PNNs). ECM changes its composition and organization during development, adulthood, aging, and in several CNS pathologies. This spatiotemporal dynamic nature of the ECM and PNNs brings a unique versatility to their functions spanning from neurogenesis, cell migration and differentiation, axonal growth, and pathfinding cues, etc., in the developing brain, to stabilizing synapses, neuromodulation, and being an active partner of tetrapartite synapses in the adult brain. The malleability of ECM and PNNs is governed by both intrinsic and extrinsic factors. Glial cells are among the major extrinsic factors that facilitate the remodeling of ECM and PNN, thereby acting as key regulators of diverse functions of ECM and PNN in health and diseases. In this review, we discuss recent advances in our understanding of PNNs and how glial cells are central to ECM and PNN remodeling in normal and pathological states of the CNS.
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22
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Gubana F, Christov C, Coste T, Tournier-Lasserve E, Benachi A, Fallet-Bianco C, Encha-Razavi F, Martinovic J. Prenatal Diagnosis of COL4A1 Mutations in Eight Cases: Further Delineation of the Neurohistopathological Phenotype. Pediatr Dev Pathol 2022; 25:435-446. [PMID: 35382634 DOI: 10.1177/10935266221080134] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
BACKGROUND Increasing number of mutations responsible for vascular lesions, leading to ischemic or hemorrhagic stroke in young adults, has been identified in the recent years. It has been demonstrated in both mice and humans, that mutations in COL4A1 gene promote cerebral hemorrhages. In humans, both adults and children may be affected, and the spectrum has been broadened recently to neonates and fetuses. METHODS We present a cohort of eight COL4A1 mutated fetuses in which cerebral hemorrhages were detected by ultrasound leading to elective terminations of pregnancy. RESULTS Our neuropathological studies demonstrated a strikingly similar pathological pattern, dominated by supra- and infratentorial multifocal hemorrhagic lesions of various abundance and age in the vicinity of enlarged small vessels having a discontinuous wall. This was constantly associated with a spectrum of supratentorial post-ischemic damages of the grey and white matters. Morphometric studies of brain vessels confirmed vascular dilation and hypervascularization in both grey and white matters and severe attenuation of the smooth-muscle actin staining in the white matter. CONCLUSION These observations add to the rare human neuropathological phenotype of COL4A1 mutations. Its recognition is mandatory to enhance the number of tested patients in the future, as well as the genetic counseling of parents.
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Affiliation(s)
- Francesca Gubana
- Unit of Embryo-Fetal Pathology, AP-HP, 36895Antoine Béclère Hospital, Clamart, France.,Department of Obstetrics and Gynecology, AP-HP, 36895Antoine Béclère Hospital, Paris Saclay University, Clamart, France
| | - Christo Christov
- Department of Histology, CHRU, 571075INSERM U1256, NGERE, Nancy, France
| | - Thibault Coste
- Department of Neurovascular Genetics, AP-HP, 571075St Louis Hospital, Paris, France
| | | | - Alexandra Benachi
- Department of Obstetrics and Gynecology, AP-HP, 36895Antoine Béclère Hospital, Paris Saclay University, Clamart, France
| | | | - Ferechte Encha-Razavi
- Unit of Embryo-Fetal Pathology, AP-HP, 36895Antoine Béclère Hospital, Clamart, France
| | - Jelena Martinovic
- Unit of Embryo-Fetal Pathology, AP-HP, 36895Antoine Béclère Hospital, Clamart, France
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23
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Mao M, Labelle-Dumais C, Tufa SF, Keene DR, Gould DB. Elevated TGFβ signaling contributes to ocular anterior segment dysgenesis in Col4a1 mutant mice. Matrix Biol 2022; 110:151-173. [PMID: 35525525 PMCID: PMC10410753 DOI: 10.1016/j.matbio.2022.05.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Revised: 04/08/2022] [Accepted: 05/02/2022] [Indexed: 10/18/2022]
Abstract
Ocular anterior segment dysgenesis (ASD) refers to a collection of developmental disorders affecting the anterior structures of the eye. Although a number of genes have been implicated in the etiology of ASD, the underlying pathogenetic mechanisms remain unclear. Mutations in genes encoding collagen type IV alpha 1 (COL4A1) and alpha 2 (COL4A2) cause Gould syndrome, a multi-system disorder that often includes ocular manifestations such as ASD and glaucoma. COL4A1 and COL4A2 are abundant basement membrane proteins that provide structural support to tissues and modulate signaling through interactions with other extracellular matrix proteins, growth factors, and cell surface receptors. In this study, we used a combination of histological, molecular, genetic and pharmacological approaches to demonstrate that altered TGFβ signaling contributes to ASD in mouse models of Gould syndrome. We show that TGFβ signaling was elevated in anterior segments from Col4a1 mutant mice and that genetically reducing TGFβ signaling partially prevented ASD. Notably, we identified distinct roles for TGFβ1 and TGFβ2 in ocular defects observed in Col4a1 mutant mice. Importantly, we show that pharmacologically promoting type IV collagen secretion or reducing TGFβ signaling ameliorated ocular pathology in Col4a1 mutant mice. Overall, our findings demonstrate that altered TGFβ signaling contributes to COL4A1-related ocular dysgenesis and implicate this pathway as a potential therapeutic target for the treatment of Gould syndrome.
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Affiliation(s)
- Mao Mao
- Department of Ophthalmology, University of California, San Francisco, San Francisco, CA 94143, United States
| | - Cassandre Labelle-Dumais
- Department of Ophthalmology, University of California, San Francisco, San Francisco, CA 94143, United States
| | - Sara F Tufa
- Shriners Children's, Micro-Imaging Center, Portland, Oregon 97239, United States
| | - Douglas R Keene
- Shriners Children's, Micro-Imaging Center, Portland, Oregon 97239, United States
| | - Douglas B Gould
- Department of Ophthalmology, University of California, San Francisco, San Francisco, CA 94143, United States; Department of Anatomy, University of California, San Francisco, San Francisco, CA 94143, United States; Institute for Human Genetics, University of California, San Francisco, San Francisco, CA 94143, United States; Cardiovascular Research Institute, University of California, San Francisco, San Francisco, CA 94143, United States; Bakar Aging Research Institute, University of California, San Francisco, San Francisco, CA 94143, United States.
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24
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Ahmadpour D, Mhaouty-Kodja S, Grange-Messent V. Effects and underlying cellular pathway involved in the impairment of the neurovascular unit following exposure of adult male mice to low doses of di(2-ethylhexyl) phthalate alone or in an environmental phthalate mixture. ENVIRONMENTAL RESEARCH 2022; 207:112235. [PMID: 34678253 DOI: 10.1016/j.envres.2021.112235] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2021] [Revised: 10/15/2021] [Accepted: 10/16/2021] [Indexed: 06/13/2023]
Abstract
We have previously shown that adult male mice exposure to low doses of di (2-ethylhexyl)phthalate (DEHP) impacts the blood-brain barrier (BBB) integrity and surrounding parenchyma in the medial preoptic area (mPOA), a key hypothalamic area involved in the male sexual behavior. BBB leakage was associated with a decrease in the endothelial tight junction accessory protein, zona occludens-1, and caveolae protein Cav-1, added to an inflammatory profile including glial activation accompanied by enhanced expression of inducible nitric oxide synthase. As this failure of BBB functionality in the mPOA could participate, at least in part, in reported alteration of sexual behavior following DEHP exposure, we explored the cellular pathway connecting cerebral capillaries and neurons. Two-month-old C57BL/6J male mice were orally exposed for 6 weeks to DEHP alone (5 and 50 μg/kg/day) or to DEHP (5 μg/kg/day) in an environmental phthalate mixture. The presence of androgen receptor (AR) and estrogen receptor-α (ERα) were first evidenced in brain capillaries. Protein levels of AR but not of ERα were reduced in cerebral capillaries after phthalate exposure. The amounts of basement membrane and cell-matrix interaction components were decreased, while matrix metalloprotease MMP-2 and MMP-9 activities were increased. Fluorojade® labelling suggested that exposure to phthalates also lead to a neurodegenerative process in the mPOA. Altogether, the data suggest that environmental exposure to endocrine disruptors such as phthalates, could alter AR/Cav-1 interaction, impacting a Cav-1/nitric oxide/MMP pathway. This would lead to disruption of the glio-neurovascular coupling which is essential to neuronal functioning.
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Affiliation(s)
- Delnia Ahmadpour
- Sorbonne Université, CNRS, INSERM, Neuroscience Paris-Seine, Institut de Biologie Paris-Seine, 75005, Paris, France
| | - Sakina Mhaouty-Kodja
- Sorbonne Université, CNRS, INSERM, Neuroscience Paris-Seine, Institut de Biologie Paris-Seine, 75005, Paris, France
| | - Valérie Grange-Messent
- Sorbonne Université, CNRS, INSERM, Neuroscience Paris-Seine, Institut de Biologie Paris-Seine, 75005, Paris, France.
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25
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Coste T, Vincent-Delorme C, Stichelbout M, Devisme L, Gelot A, Deryabin I, Pelluard F, Aloui C, Leutenegger AL, Jouannic JM, Héron D, Gould DB, Tournier-Lasserve E. COL4A1/COL4A2 and inherited platelet disorder gene variants in fetuses showing intracranial hemorrhage. Prenat Diagn 2022; 42:601-610. [PMID: 35150448 PMCID: PMC10434296 DOI: 10.1002/pd.6113] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Revised: 01/12/2022] [Accepted: 02/09/2022] [Indexed: 11/08/2022]
Abstract
BACKGROUND Variants of COL4A1/COL4A2 genes have been reported in fetal intracranial hemorrhage (ICH) cases but their prevalence and characteristics have not been established in a large series of fetuses. Fetal neonatal alloimmune thrombocytopenia is a major acquired ICH factor but the prevalence and characteristics of inherited platelet disorder (IPD) gene variants leading to thrombocytopenia are unknown. Herein, we screened COL4A1/COL4A2 and IPD genes in a large series of ICH fetuses. METHODS A cohort of 194 consecutive ICH fetuses were first screened for COL4A1/COL4A2 variants. We manually curated a list of 64 genes involved in IPD and investigated them in COL4A1/COL4A2 negative fetuses, using exome sequencing data from 101 of these fetuses. RESULT Pathogenic variants of COL4A1/COL4A2 genes were identified in 36 fetuses (19%). They occurred de novo in 70% of the 32 fetuses for whom parental DNA was available. Pathogenic variants in two megakaryopoiesis genes (MPL and MECOM genes) were identified in two families with recurrent and severe fetal ICH, with variable extraneurological pathological features. CONCLUSION Our study emphasizes the genetic heterogeneity of fetal ICH and the need to screen both COL4A1/COL4A2 and IPD genes in the etiological investigation of fetal ICH to allow proper genetic counseling.
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Affiliation(s)
- Thibault Coste
- AP-HP, Service de génétique moléculaire Neurovasculaire, Hôpital Saint-Louis, Paris, France
- Université de Paris, INSERM UMR-1141 Neurodiderot, Paris, France
| | | | | | | | - Antoinette Gelot
- APHP, Service de fœtopathologie, Hôpital Trousseau, Paris, France
| | - Igor Deryabin
- APHP, Service de fœtopathologie, Hôpital Trousseau, Paris, France
| | - Fanny Pelluard
- University Bordeaux, INSERM, BaRITOn, U1053, Bordeaux, France
| | - Chaker Aloui
- Université de Paris, INSERM UMR-1141 Neurodiderot, Paris, France
| | | | - Jean-Marie Jouannic
- APHP Sorbonne Université, Service de médecine fœtale, Hôpital Trousseau, Paris, France
| | - Delphine Héron
- AP-HP, Service de génétique clinique, Hôpital de la Pitié-Salpêtrière, Paris, France
| | - Douglas B Gould
- Department of Ophthalmology, University of California San Francisco, San Francisco, California, USA
| | - Elisabeth Tournier-Lasserve
- AP-HP, Service de génétique moléculaire Neurovasculaire, Hôpital Saint-Louis, Paris, France
- Université de Paris, INSERM UMR-1141 Neurodiderot, Paris, France
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26
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Guo H, You M, Wu J, Chen A, Wan Y, Gu X, Tan S, Xu Y, He Q, Hu B. Genetics of Spontaneous Intracerebral Hemorrhage: Risk and Outcome. Front Neurosci 2022; 16:874962. [PMID: 35478846 PMCID: PMC9036087 DOI: 10.3389/fnins.2022.874962] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2022] [Accepted: 03/14/2022] [Indexed: 01/05/2023] Open
Abstract
Spontaneous intracerebral hemorrhage (ICH) is a common fatal event without an effective therapy. Of note, some familial aggregation and inherited tendency is found in ICH and heritability estimates indicate that genetic variations contribute substantially to ICH risk and outcome. Thus, identification of genetic variants that affect the occurrence and outcome may be helpful for ICH prevention and therapy. There are several reviews summarizing numerous genetic variants associated with the occurrence of ICH before, but genetic variants contributing to location distribution and outcome have rarely been introduced. Here, we summarize the current knowledge of genetic variants and pay special attention to location distribution and outcome. So far, investigations have reveled variations in APOE, GPX1, CR1, ITGAV, PRKCH, and 12q21.1 are associated with lobar ICH (LICH), while ACE, COL4A2, 1q22, TIMP1, TIMP2, MMP2, MMP9, and TNF are associated with deep ICH (DICH). Moreover, variations in APOE, VWF, 17p12, HP, CFH, IL6ST, and COL4A1 are possible genetic contributors to ICH outcome. Furthermore, the prospects for ICH related genetic studies from the bench to the bed were discussed.
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Affiliation(s)
- Hongxiu Guo
- Department of Neurology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Mingfeng You
- Department of Neurology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jiehong Wu
- Department of Neurology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Anqi Chen
- Department of Neurology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yan Wan
- Department of Neurology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xinmei Gu
- Department of Neurology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Senwei Tan
- Department of Neurology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yating Xu
- Department of Neurology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Quanwei He
- Department of Neurology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Bo Hu
- Department of Neurology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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27
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Guey S, Hervé D. Main features of COL4A1-COL4A2 related cerebral microangiopathies. CEREBRAL CIRCULATION - COGNITION AND BEHAVIOR 2022; 3:100140. [PMID: 36324412 PMCID: PMC9616443 DOI: 10.1016/j.cccb.2022.100140] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/07/2022] [Revised: 03/21/2022] [Accepted: 03/22/2022] [Indexed: 06/16/2023]
Abstract
COL4A1 and COL4A2 genes encode the alpha1 and the alpha2 chains of type IV collagen, a key component of basement membranes. Mutations located in the coding sequence of COL4A1/COL4A2 genes are responsible for an autosomal dominant (AD) cerebral angiopathy that manifest in either adults, children or fetuses. The most typical among such mutations are missense glycine mutations in the triple helix. They increase the susceptibility to brain hemorrhage but can also promote the occurrence of multiple other types of systemic manifestations that can involve the eyes, kidneys or muscles. This condition is characterized by a very incomplete penetrance, and a wide phenotypic variability even among members of the same family. Recently, mutations in the COL4A1 3'UTR non-coding region that upregulate COL4A1 expression, and COL4A1/COL4A2 duplications, have been shown to cause AD forms of ischemic cerebral small vessel disease in adults. Herein, we summarize the genetic and pathophysiological aspects of these conditions, detail their clinical and imaging characteristics and discuss some principles in their clinical management.
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28
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Chen D, Hughes ED, Saunders TL, Wu J, Hernández Vásquez MN, Makinen T, King PD. Angiogenesis depends upon EPHB4-mediated export of collagen IV from vascular endothelial cells. JCI Insight 2022; 7:156928. [PMID: 35015735 PMCID: PMC8876457 DOI: 10.1172/jci.insight.156928] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Accepted: 01/05/2022] [Indexed: 11/17/2022] Open
Abstract
Capillary malformation-arteriovenous malformation (CM-AVM) is a blood vascular anomaly caused by inherited loss of function mutations in RASA1 or EPHB4 genes that encode p120 Ras GTPase-activating protein (p120 RasGAP/RASA1) and Ephrin receptor B4 (EPHB4) respectively. However, whether RASA1 and EPHB4 function in the same molecular signaling pathway to regulate the blood vasculature is uncertain. Here, we show that induced endothelial cell (EC)-specific disruption of Ephb4 in mice results in accumulation of collagen IV in the EC endoplasmic reticulum leading to EC apoptotic death and defective developmental, neonatal and pathological angiogenesis, as reported previously in induced EC-specific RASA1-deficient mice. Moreover, defects in angiogenic responses in EPHB4-deficient mice can be rescued by drugs that inhibit signaling through the Ras pathway and drugs that promote collagen IV export from the ER. However, EPHB4 mutant mice that express a form of EPHB4 that is unable to physically engage RASA1 but retains protein tyrosine kinase activity show normal angiogenic responses. These findings provide strong evidence that RASA1 and EPHB4 function in the same signaling pathway to protect against the development of CM-AVM independent of physical interaction and have important implications with regards possible means of treatment of this disease.
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Affiliation(s)
- Di Chen
- Department of Microbiology and Immunology, University of Michigan Medical School, Ann Arbor, United States of America
| | - Elizabeth D Hughes
- Transgenic Animal Model Core, University of Michigan Medical School, Ann Arbor, United States of America
| | - Thomas L Saunders
- Transgenic Animal Model Core, University of Michigan Medical School, Ann Arbor, United States of America
| | - Jiangping Wu
- Research Centre, Centre hospitalier de l'Université de Montréal, Montreal, Canada
| | | | - Taija Makinen
- Department of Immunology, Genetics, and Pathology, Uppsala University, Uppsala, Sweden
| | - Philip D King
- Department of Microbiology and Immunology, University of Michigan School of Medicine, Ann Arbor, United States of America
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29
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Barinov E, Statinova E, Faber T, Gillyer D. Extracellular matrix remodeling as a risk factor for the progression of cerebrovascular pathology. Zh Nevrol Psikhiatr Im S S Korsakova 2022; 122:27-31. [DOI: 10.17116/jnevro202212203127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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30
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Nguyen B, Bix G, Yao Y. Basal lamina changes in neurodegenerative disorders. Mol Neurodegener 2021; 16:81. [PMID: 34876200 PMCID: PMC8650282 DOI: 10.1186/s13024-021-00502-y] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Accepted: 11/17/2021] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Neurodegenerative disorders are a group of age-associated diseases characterized by progressive degeneration of the structure and function of the CNS. Two key pathological features of these disorders are blood-brain barrier (BBB) breakdown and protein aggregation. MAIN BODY The BBB is composed of various cell types and a non-cellular component---the basal lamina (BL). Although how different cells affect the BBB is well studied, the roles of the BL in BBB maintenance and function remain largely unknown. In addition, located in the perivascular space, the BL is also speculated to regulate protein clearance via the meningeal lymphatic/glymphatic system. Recent studies from our laboratory and others have shown that the BL actively regulates BBB integrity and meningeal lymphatic/glymphatic function in both physiological and pathological conditions, suggesting that it may play an important role in the pathogenesis and/or progression of neurodegenerative disorders. In this review, we focus on changes of the BL and its major components during aging and in neurodegenerative disorders, including Alzheimer's disease (AD), Parkinson's disease (PD), and amyotrophic lateral sclerosis (ALS). First, we introduce the vascular and lymphatic systems in the CNS. Next, we discuss the BL and its major components under homeostatic conditions, and summarize their changes during aging and in AD, PD, and ALS in both rodents and humans. The functional significance of these alterations and potential therapeutic targets are also reviewed. Finally, key challenges in the field and future directions are discussed. CONCLUSIONS Understanding BL changes and the functional significance of these changes in neurodegenerative disorders will fill the gap of knowledge in the field. Our goal is to provide a clear and concise review of the complex relationship between the BL and neurodegenerative disorders to stimulate new hypotheses and further research in this field.
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Affiliation(s)
- Benjamin Nguyen
- Department of Pharmaceutical and Biomedical Sciences, University of Georgia, Athens, GA, USA
| | - Gregory Bix
- Clinical Neuroscience Research Center, Tulane University School of Medicine, New Orleans, Louisiana, USA
- Departments of Neurosurgery and Neurology, Tulane University School of Medicine, New Orleans, Louisiana, USA
| | - Yao Yao
- Department of Pharmaceutical and Biomedical Sciences, University of Georgia, Athens, GA, USA.
- Department of Molecular Pharmacology and Physiology, Morsani College of Medicine, University of South Florida, MDC 8, Tampa, Florida, 33612, USA.
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31
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Peptide Nanoparticle-Mediated Combinatorial Delivery of Cancer-Related siRNAs for Synergistic Anti-Proliferative Activity in Triple Negative Breast Cancer Cells. Pharmaceuticals (Basel) 2021; 14:ph14100957. [PMID: 34681181 PMCID: PMC8540820 DOI: 10.3390/ph14100957] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Revised: 09/15/2021] [Accepted: 09/21/2021] [Indexed: 12/16/2022] Open
Abstract
Triple negative breast cancer (TNBC) is one of the deadliest types of cancer for women of different age groups. Frequently this cancer does not respond to conservative treatment. Combinatorial RNAi can be suggested as an advanced approach to TNBC therapy. Due to the fact that TNBC cells overexpress chemokine receptor 4 we used modular L1 peptide-based nanoparticles modified with CXCR4 ligand for combinatorial delivery of siRNAs suppressing major transduction pathways. TNBC cell line MDA-MB-231 was used as a cellular model. Genes encoding the AQP3, CDC20, and COL4A2 proteins responsible for proliferative activity in TNBC cells were selected as RNAi targets. The siRNA binding ability of the carrier was studied at different charge ratios. The silencing specificity was demonstrated for all siRNAs studied. Alamar Blue proliferation assay has shown significant reduction in the anti-proliferative activity after combinatorial siRNA transfection compared to single siRNA delivery. The most significant synergistic effect has been demonstrated for combinatorial transfection of anti-COL4A2 and anti-CDC20 siRNAs what resulted in 1.5-2 fold inhibition of proliferation and migration of TNBC cells. Based on our findings, we have concluded that combinatorial treatment by CXCR4-ligand modified L1-polyplexes formed with AQP3, CDC20, and COL4A2 siRNAs effectively inhibits proliferation of TNBC cells and can be suggested as useful tool for RNAi-mediated cancer therapy.
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32
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Donner I, Sipilä LJ, Plaketti RM, Kuosmanen A, Forsström L, Katainen R, Kuismin O, Aavikko M, Romsi P, Kariniemi J, Aaltonen LA. Next-generation sequencing in a large pedigree segregating visceral artery aneurysms suggests potential role of COL4A1/COL4A2 in disease etiology. Vascular 2021; 30:842-847. [PMID: 34281442 DOI: 10.1177/17085381211033157] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
BACKGROUND Visceral artery aneurysms (VAAs) can be fatal if ruptured. Although a relatively rare incident, it holds a contemporary mortality rate of approximately 12%. VAAs have multiple possible causes, one of which is genetic predisposition. Here, we present a striking family with seven individuals affected by VAAs, and one individual affected by a visceral artery pseudoaneurysm. METHODS We exome sequenced the affected family members and the parents of the proband to find a possible underlying genetic defect. As exome sequencing did not reveal any feasible protein-coding variants, we combined whole-genome sequencing of two individuals with linkage analysis to find a plausible non-coding culprit variant. Variants were ranked by the deep learning framework DeepSEA. RESULTS Two of seven top-ranking variants, NC_000013.11:g.108154659C>T and NC_000013.11:g.110409638C>T, were found in all VAA-affected individuals, but not in the individual affected by the pseudoaneurysm. The second variant is in a candidate cis-regulatory element in the fourth intron of COL4A2, proximal to COL4A1. CONCLUSIONS As type IV collagens are essential for the stability and integrity of the vascular basement membrane and involved in vascular disease, we conclude that COL4A1 and COL4A2 are strong candidates for VAA susceptibility genes.
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Affiliation(s)
- Iikki Donner
- Department of Medical and Clinical Genetics, Medicum, 3835University of Helsinki, Helsinki, Finland.,Genome-Scale Biology Research Program, Research Programs Unit, 3835University of Helsinki, Helsinki, Finland
| | - Lauri J Sipilä
- Department of Medical and Clinical Genetics, Medicum, 3835University of Helsinki, Helsinki, Finland.,Genome-Scale Biology Research Program, Research Programs Unit, 3835University of Helsinki, Helsinki, Finland
| | - Roosa-Maria Plaketti
- Department of Medical and Clinical Genetics, Medicum, 3835University of Helsinki, Helsinki, Finland.,Genome-Scale Biology Research Program, Research Programs Unit, 3835University of Helsinki, Helsinki, Finland
| | - Anna Kuosmanen
- Department of Medical and Clinical Genetics, Medicum, 3835University of Helsinki, Helsinki, Finland.,Genome-Scale Biology Research Program, Research Programs Unit, 3835University of Helsinki, Helsinki, Finland
| | - Linda Forsström
- Department of Medical and Clinical Genetics, Medicum, 3835University of Helsinki, Helsinki, Finland.,Genome-Scale Biology Research Program, Research Programs Unit, 3835University of Helsinki, Helsinki, Finland
| | - Riku Katainen
- Department of Medical and Clinical Genetics, Medicum, 3835University of Helsinki, Helsinki, Finland.,Genome-Scale Biology Research Program, Research Programs Unit, 3835University of Helsinki, Helsinki, Finland
| | - Outi Kuismin
- Department of Clinical Genetics, 60664Oulu University Hospital, Oulu, Finland.,PEDEGO Research Unit, Medical Research Center Oulu, 60664Oulu University Hospitaland University of Oulu, Oulu, Finland
| | - Mervi Aavikko
- Department of Medical and Clinical Genetics, Medicum, 3835University of Helsinki, Helsinki, Finland.,Genome-Scale Biology Research Program, Research Programs Unit, 3835University of Helsinki, Helsinki, Finland.,Institute for Molecular Medicine Finland (FIMM), HiLIFE, 3835University of Helsinki, Helsinki, Finland
| | - Pekka Romsi
- Department of Vascular Surgery, 60664Oulu University Hospital, Oulu, Finland
| | - Juho Kariniemi
- Department of Radiology, 60664Oulu University Hospital, Oulu, Finland
| | - Lauri A Aaltonen
- Department of Medical and Clinical Genetics, Medicum, 3835University of Helsinki, Helsinki, Finland.,Genome-Scale Biology Research Program, Research Programs Unit, 3835University of Helsinki, Helsinki, Finland
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Cerebral microbleeds in vascular dementia from clinical aspects to host-microbial interaction. Neurochem Int 2021; 148:105073. [PMID: 34048844 DOI: 10.1016/j.neuint.2021.105073] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2020] [Revised: 05/15/2021] [Accepted: 05/16/2021] [Indexed: 12/30/2022]
Abstract
Vascular dementia is the second leading cause of dementia after Alzheimer's disease in the elderly population worldwide. Cerebral microbleeds (CMBs) are frequently observed in MRI of elderly subjects and considered as a possible surrogate marker. The number and location of CMBs reflect the severity of diseases and the underlying pathologies may involve cerebral amyloid angiopathy or hypertensive vasculopathy. Accumulating evidence demonstrated the clinicopathological discrepancies of CMBs, the clinical significance of CMBs associated with other MRI markers of cerebral small vessel disease, cognitive impairments, serum, and cerebrospinal fluid biomarkers. Moreover, emerging evidence has shown that genetic factors and gene-environmental interactions might shed light on the underlying etiologies of CMBs, focusing on blood-brain-barrier and inflammation. In this review, we introduce recent genetic and microbiome studies as a cutting-edge approach to figure out the etiology of CMBs through the "microbe-brain-oral axis" and "microbiome-brain-gut axis." Finally, we propose novel concepts, "microvascular matrisome" and "imbalanced proteostasis," which may provide better perspectives for elucidating the pathophysiology of CMBs and future development of therapeutics for vascular dementia using CMBs as a surrogate marker.
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Schofield CL, Rodrigo-Navarro A, Dalby MJ, Van Agtmael T, Salmeron-Sanchez M. Biochemical‐ and Biophysical‐Induced Barriergenesis in the Blood–Brain Barrier: A Review of Barriergenic Factors for Use in In Vitro Models. ADVANCED NANOBIOMED RESEARCH 2021. [DOI: 10.1002/anbr.202000068] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Affiliation(s)
| | | | - Matthew J. Dalby
- Centre for the Cellular Microenvironment University of Glasgow Glasgow UK
| | - Tom Van Agtmael
- Institute of Cardiovascular and Medical Sciences University of Glasgow Glasgow UK
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35
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Brock S, Michotte A, Doné E, Leus A, Cannie M, De Pierre K, Forsyth R, Stouffs K, Keymolen K, Dimitrov B, Fieuw A, Jansen AC, Van Berkel K. Novel Variant in COL4A1 Causes Extensive Prenatal Intracranial Hemorrhage and Porencephaly. J Neuropathol Exp Neurol 2021; 80:807-810. [PMID: 33846711 DOI: 10.1093/jnen/nlab026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Stefanie Brock
- Department of Pathology, Universitair Ziekenhuis Brussel (UZ Brussel), Brussels, Belgium.,Neurogenetics Research Group, Vrije Universiteit Brussel (VUB), Brussels, Belgium
| | - Alex Michotte
- Department of Neurology, Universitair Ziekenhuis Brussel (UZ Brussel), Brussels, Belgium
| | - Elisa Doné
- Department of Obstetrics and Gynaecology, Universitair Ziekenhuis Brussel (UZ Brussel), Brussels, Belgium
| | - Astrid Leus
- Department of Radiology, Universitair Ziekenhuis Brussel (UZ Brussel), Brussels, Belgium
| | - Mieke Cannie
- Department of Radiology, Universitair Ziekenhuis Brussel (UZ Brussel), Brussels, Belgium
| | - Kari De Pierre
- Department of Pathology, Universitair Ziekenhuis Brussel (UZ Brussel), Brussels, Belgium
| | - Ramses Forsyth
- Department of Pathology, Universitair Ziekenhuis Brussel (UZ Brussel), Brussels, Belgium
| | - Katrien Stouffs
- Neurogenetics Research Group, Vrije Universiteit Brussel (VUB), Brussels, Belgium.,Belgium Center for Reproduction and Genetics, UZ Brussel, Brussels, Belgium
| | - Kathelijn Keymolen
- Belgium Center for Reproduction and Genetics, UZ Brussel, Brussels, Belgium
| | - Boyan Dimitrov
- Belgium Center for Reproduction and Genetics, UZ Brussel, Brussels, Belgium
| | - Annelies Fieuw
- Belgium Center for Reproduction and Genetics, UZ Brussel, Brussels, Belgium
| | - Anna C Jansen
- Neurogenetics Research Group, Vrije Universiteit Brussel (VUB), Brussels, Belgium.,Pediatric Neurology Unit, Universitair Ziekenhuis Brussel (UZ Brussel), Brussels, Belgium
| | - Kim Van Berkel
- Belgium Center for Reproduction and Genetics, UZ Brussel, Brussels, Belgium
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Prolyl 3-Hydroxylase 2 Is a Molecular Player of Angiogenesis. Int J Mol Sci 2021; 22:ijms22083896. [PMID: 33918807 PMCID: PMC8069486 DOI: 10.3390/ijms22083896] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2021] [Revised: 03/30/2021] [Accepted: 04/06/2021] [Indexed: 11/17/2022] Open
Abstract
Prolyl 3-hydroxylase 2 (P3H2) catalyzes the post-translational formation of 3-hydroxyproline on collagens, mainly on type IV. Its activity has never been directly associated to angiogenesis. Here, we identified P3H2 gene through a deep-sequencing transcriptome analysis of human umbilical vein endothelial cells (HUVECs) stimulated with vascular endothelial growth factor A (VEGF-A). Differently from many previous studies we carried out the stimulation not on starved HUVECs, but on cells grown to maintain the best condition for their in vitro survival and propagation. We showed that P3H2 is induced by VEGF-A in two primary human endothelial cell lines and that its transcription is modulated by VEGF-A/VEGF receptor 2 (VEGFR-2) signaling pathway through p38 mitogen-activated protein kinase (MAPK). Then, we demonstrated that P3H2, through its activity on type IV Collagen, is essential for angiogenesis properties of endothelial cells in vitro by performing experiments of gain- and loss-of-function. Immunofluorescence studies showed that the overexpression of P3H2 induced a more condensed status of Collagen IV, accompanied by an alignment of the cells along the Collagen IV bundles, so towards an evident pro-angiogenic status. Finally, we found that P3H2 knockdown prevents pathological angiogenesis in vivo, in the model of laser-induced choroid neovascularization. Together these findings reveal that P3H2 is a new molecular player involved in new vessels formation and could be considered as a potential target for anti-angiogenesis therapy.
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Mao M, Popli T, Jeanne M, Hoff K, Sen S, Gould DB. Identification of fibronectin 1 as a candidate genetic modifier in a Col4a1 mutant mouse model of Gould syndrome. Dis Model Mech 2021; 14:dmm048231. [PMID: 34424299 PMCID: PMC8106953 DOI: 10.1242/dmm.048231] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2020] [Accepted: 03/02/2021] [Indexed: 12/12/2022] Open
Abstract
Collagen type IV alpha 1 and alpha 2 (COL4A1 and COL4A2) are major components of almost all basement membranes. COL4A1 and COL4A2 mutations cause a multisystem disorder that can affect any organ but typically involves the cerebral vasculature, eyes, kidneys and skeletal muscles. In recent years, patient advocacy and family support groups have united under the name of Gould syndrome. The manifestations of Gould syndrome are highly variable, and animal studies suggest that allelic heterogeneity and genetic context contribute to the clinical variability. We previously characterized a mouse model of Gould syndrome caused by a Col4a1 mutation in which the severities of ocular anterior segment dysgenesis (ASD), myopathy and intracerebral hemorrhage (ICH) were dependent on genetic background. Here, we performed a genetic modifier screen to provide insight into the mechanisms contributing to Gould syndrome pathogenesis and identified a single locus [modifier of Gould syndrome 1 (MoGS1)] on Chromosome 1 that suppressed ASD. A separate screen showed that the same locus ameliorated myopathy. Interestingly, MoGS1 had no effect on ICH, suggesting that this phenotype could be mechanistically distinct. We refined the MoGS1 locus to a 4.3 Mb interval containing 18 protein-coding genes, including Fn1, which encodes the extracellular matrix component fibronectin 1. Molecular analysis showed that the MoGS1 locus increased Fn1 expression, raising the possibility that suppression is achieved through a compensatory extracellular mechanism. Furthermore, we found evidence of increased integrin-linked kinase levels and focal adhesion kinase phosphorylation in Col4a1 mutant mice that is partially restored by the MoGS1 locus, implicating the involvement of integrin signaling. Taken together, our results suggest that tissue-specific mechanistic heterogeneity contributes to the variable expressivity of Gould syndrome and that perturbations in integrin signaling may play a role in ocular and muscular manifestations.
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Affiliation(s)
- Mao Mao
- Department of Ophthalmology, University of California San Francisco, San Francisco, CA 94143, USA
| | - Tanav Popli
- Department of Ophthalmology, University of California San Francisco, San Francisco, CA 94143, USA
| | - Marion Jeanne
- Department of Ophthalmology, University of California San Francisco, San Francisco, CA 94143, USA
| | - Kendall Hoff
- Department of Ophthalmology, University of California San Francisco, San Francisco, CA 94143, USA
| | - Saunak Sen
- Department of Epidemiology and Biostatistics, University of California San Francisco, San Francisco, CA 94143, USA
- Institute of Human Genetics, University of California San Francisco, San Francisco, CA 94143, USA
- Department of Preventive Medicine, University of Tennessee Health Science Center, 66 North Pauline St, Memphis, TN 38163, USA
| | - Douglas B. Gould
- Department of Ophthalmology, University of California San Francisco, San Francisco, CA 94143, USA
- Institute of Human Genetics, University of California San Francisco, San Francisco, CA 94143, USA
- Department of Anatomy, University of California San Francisco, San Francisco, CA 94143, USA
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38
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Wang H, Liang P, Zheng L, Long C, Li H, Zuo Y. eHSCPr discriminating the cell identity involved in endothelial to hematopoietic transition. Bioinformatics 2021; 37:2157-2164. [PMID: 33532815 DOI: 10.1093/bioinformatics/btab071] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2020] [Revised: 01/15/2021] [Accepted: 01/28/2021] [Indexed: 12/11/2022] Open
Abstract
MOTIVATION Hematopoietic stem cells (HSCs) give rise to all blood cells and play a vital role throughout the whole lifespan through their pluripotency and self-renewal properties. Accurately identifying the stages of early HSCs is extremely important, as it may open up new prospects for extracorporeal blood research. Existing experimental techniques for identifying the early stages of HSCs development are time-consuming and expensive. Machine learning has shown its excellence in massive single-cell data processing and it is desirable to develop related computational models as good complements to experimental techniques. RESULTS In this study, we presented a novel predictor called eHSCPr specifically for predicting the early stages of HSCs development. To reveal the distinct genes at each developmental stage of HSCs, we compared F-score with three state-of-art differential gene selection methods (limma, DESeq2, edgeR) and evaluated their performance. F-score captured the more critical surface markers of endothelial cells and hematopoietic cells, and the area under receiver operating characteristic curve (ROC) value was 0.987. Based on SVM, the 10-fold cross-validation accuracy of eHSCpr in the independent dataset and the training dataset reached 94.84% and 94.19%, respectively. Importantly, we performed transcription analysis on the F-score gene set, which indeed further enriched the signal markers of HSCs development stages. eHSCPr can be a powerful tool for predicting early stages of HSCs development, facilitating hypothesis-driven experimental design and providing crucial clues for the in vitro blood regeneration studies. AVAILABILITY http://bioinfor.imu.edu.cn/ehscpr. SUPPLEMENTARY INFORMATION Supplementary data are available at Bioinformatics online.
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Affiliation(s)
- Hao Wang
- State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, College of Life Sciences, Inner Mongolia University, Hohhot, 010070, China
| | - Pengfei Liang
- State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, College of Life Sciences, Inner Mongolia University, Hohhot, 010070, China
| | - Lei Zheng
- State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, College of Life Sciences, Inner Mongolia University, Hohhot, 010070, China
| | - ChunShen Long
- State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, College of Life Sciences, Inner Mongolia University, Hohhot, 010070, China
| | - HanShuang Li
- State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, College of Life Sciences, Inner Mongolia University, Hohhot, 010070, China
| | - Yongchun Zuo
- State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, College of Life Sciences, Inner Mongolia University, Hohhot, 010070, China
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Chen D, Geng X, Lapinski PE, Davis MJ, Srinivasan RS, King PD. RASA1-driven cellular export of collagen IV is required for the development of lymphovenous and venous valves in mice. Development 2020; 147:dev192351. [PMID: 33144395 PMCID: PMC7746672 DOI: 10.1242/dev.192351] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Accepted: 10/26/2020] [Indexed: 12/14/2022]
Abstract
RASA1, a negative regulator of Ras-MAPK signaling, is essential for the development and maintenance of lymphatic vessel valves. However, whether RASA1 is required for the development and maintenance of lymphovenous valves (LVV) and venous valves (VV) is unknown. In this study, we show that induced disruption of Rasa1 in mouse embryos did not affect initial specification of LVV or central VV, but did affect their continued development. Similarly, a switch to expression of a catalytically inactive form of RASA1 resulted in impaired LVV and VV development. Blocked development of LVV was associated with accumulation of the basement membrane protein, collagen IV, in LVV-forming endothelial cells (EC), and could be partially or completely rescued by MAPK inhibitors and drugs that promote collagen IV folding. Disruption of Rasa1 in adult mice resulted in venous hypertension and impaired VV function that was associated with loss of EC from VV leaflets. In conclusion, RASA1 functions as a negative regulator of Ras signaling in EC that is necessary for EC export of collagen IV, thus permitting the development of LVV and the development and maintenance of VV.
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Affiliation(s)
- Di Chen
- Department of Microbiology and Immunology, University of Michigan Medical School, Ann Arbor, MI 48109, USA
| | - Xin Geng
- Cardiovascular Biology Research Program, Oklahoma Medical Research Foundation, Oklahoma City, OK 73104, USA
| | - Philip E Lapinski
- Department of Microbiology and Immunology, University of Michigan Medical School, Ann Arbor, MI 48109, USA
| | - Michael J Davis
- Department of Medical Pharmacology and Physiology, University of Missouri, Columbia, MO 65102, USA
| | - R Sathish Srinivasan
- Cardiovascular Biology Research Program, Oklahoma Medical Research Foundation, Oklahoma City, OK 73104, USA
| | - Philip D King
- Department of Microbiology and Immunology, University of Michigan Medical School, Ann Arbor, MI 48109, USA
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40
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Withers SE, Parry-Jones AR, Allan SM, Kasher PR. A Multi-Model Pipeline for Translational Intracerebral Haemorrhage Research. Transl Stroke Res 2020; 11:1229-1242. [PMID: 32632777 PMCID: PMC7575484 DOI: 10.1007/s12975-020-00830-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Revised: 06/18/2020] [Accepted: 06/23/2020] [Indexed: 02/07/2023]
Abstract
Apart from acute and chronic blood pressure lowering, we have no specific medications to prevent intracerebral haemorrhage (ICH) or improve outcomes once bleeding has occurred. One reason for this may be related to particular limitations associated with the current pre-clinical models of ICH, leading to a failure to translate into the clinic. It would seem that a breakdown in the 'drug development pipeline' currently exists for translational ICH research which needs to be urgently addressed. Here, we review the most commonly used pre-clinical models of ICH and discuss their advantages and disadvantages in the context of translational studies. We propose that to increase our chances of successfully identifying new therapeutics for ICH, a bi-directional, 2- or 3-pronged approach using more than one model species/system could be useful for confirming key pre-clinical observations. Furthermore, we highlight that post-mortem/ex-vivo ICH patient material is a precious and underused resource which could play an essential role in the verification of experimental results prior to consideration for further clinical investigation. Embracing multidisciplinary collaboration between pre-clinical and clinical ICH research groups will be essential to ensure the success of this type of approach in the future.
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Affiliation(s)
- Sarah E Withers
- Division of Neuroscience and Experimental Psychology, School of Biological Sciences, Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre, The University of Manchester, Oxford Road, Manchester, M13 9PT, UK
| | - Adrian R Parry-Jones
- Division of Cardiovascular Sciences, School of Medical Sciences, Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre, The University of Manchester, Oxford Road, Manchester, M13 9PT, UK
- Manchester Centre for Clinical Neurosciences, Salford Royal NHS Foundation Trust, Manchester Academic Health Science Centre, Stott Lane, Salford, M6 8HD, UK
| | - Stuart M Allan
- Division of Neuroscience and Experimental Psychology, School of Biological Sciences, Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre, The University of Manchester, Oxford Road, Manchester, M13 9PT, UK
| | - Paul R Kasher
- Division of Neuroscience and Experimental Psychology, School of Biological Sciences, Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre, The University of Manchester, Oxford Road, Manchester, M13 9PT, UK.
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41
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Howe MD, McCullough LD, Urayama A. The Role of Basement Membranes in Cerebral Amyloid Angiopathy. Front Physiol 2020; 11:601320. [PMID: 33329053 PMCID: PMC7732667 DOI: 10.3389/fphys.2020.601320] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Accepted: 10/28/2020] [Indexed: 12/25/2022] Open
Abstract
Dementia is a neuropsychiatric syndrome characterized by cognitive decline in multiple domains, often leading to functional impairment in activities of daily living, disability, and death. The most common causes of age-related progressive dementia include Alzheimer's disease (AD) and vascular cognitive impairment (VCI), however, mixed disease pathologies commonly occur, as epitomized by a type of small vessel pathology called cerebral amyloid angiopathy (CAA). In CAA patients, the small vessels of the brain become hardened and vulnerable to rupture, leading to impaired neurovascular coupling, multiple microhemorrhage, microinfarction, neurological emergencies, and cognitive decline across multiple functional domains. While the pathogenesis of CAA is not well understood, it has long been thought to be initiated in thickened basement membrane (BM) segments, which contain abnormal protein deposits and amyloid-β (Aβ). Recent advances in our understanding of CAA pathogenesis link BM remodeling to functional impairment of perivascular transport pathways that are key to removing Aβ from the brain. Dysregulation of this process may drive CAA pathogenesis and provides an important link between vascular risk factors and disease phenotype. The present review summarizes how the structure and composition of the BM allows for perivascular transport pathways to operate in the healthy brain, and then outlines multiple mechanisms by which specific dementia risk factors may promote dysfunction of perivascular transport pathways and increase Aβ deposition during CAA pathogenesis. A better understanding of how BM remodeling alters perivascular transport could lead to novel diagnostic and therapeutic strategies for CAA patients.
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Affiliation(s)
| | | | - Akihiko Urayama
- Department of Neurology, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, TX, United States
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42
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Chung J, Marini S, Pera J, Norrving B, Jimenez-Conde J, Roquer J, Fernandez-Cadenas I, Tirschwell DL, Selim M, Brown DL, Silliman SL, Worrall BB, Meschia JF, Demel S, Greenberg SM, Slowik A, Lindgren A, Schmidt R, Traylor M, Sargurupremraj M, Tiedt S, Malik R, Debette S, Dichgans M, Langefeld CD, Woo D, Rosand J, Anderson CD. Genome-wide association study of cerebral small vessel disease reveals established and novel loci. Brain 2020; 142:3176-3189. [PMID: 31430377 DOI: 10.1093/brain/awz233] [Citation(s) in RCA: 67] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2018] [Revised: 05/30/2019] [Accepted: 06/04/2019] [Indexed: 01/08/2023] Open
Abstract
Intracerebral haemorrhage and small vessel ischaemic stroke (SVS) are the most acute manifestations of cerebral small vessel disease, with no established preventive approaches beyond hypertension management. Combined genome-wide association study (GWAS) of these two correlated diseases may improve statistical power to detect novel genetic factors for cerebral small vessel disease, elucidating underlying disease mechanisms that may form the basis for future treatments. Because intracerebral haemorrhage location is an adequate surrogate for distinct histopathological variants of cerebral small vessel disease (lobar for cerebral amyloid angiopathy and non-lobar for arteriolosclerosis), we performed GWAS of intracerebral haemorrhage by location in 1813 subjects (755 lobar and 1005 non-lobar) and 1711 stroke-free control subjects. Intracerebral haemorrhage GWAS results by location were meta-analysed with GWAS results for SVS from MEGASTROKE, using 'Multi-Trait Analysis of GWAS' (MTAG) to integrate summary data across traits and generate combined effect estimates. After combining intracerebral haemorrhage and SVS datasets, our sample size included 241 024 participants (6255 intracerebral haemorrhage or SVS cases and 233 058 control subjects). Genome-wide significant associations were observed for non-lobar intracerebral haemorrhage enhanced by SVS with rs2758605 [MTAG P-value (P) = 2.6 × 10-8] at 1q22; rs72932727 (P = 1.7 × 10-8) at 2q33; and rs9515201 (P = 5.3 × 10-10) at 13q34. In the GTEx gene expression library, rs2758605 (1q22), rs72932727 (2q33) and rs9515201 (13q34) are significant cis-eQTLs for PMF1 (P = 1 × 10-4 in tibial nerve), NBEAL1, FAM117B and CARF (P < 2.1 × 10-7 in arteries) and COL4A2 and COL4A1 (P < 0.01 in brain putamen), respectively. Leveraging S-PrediXcan for gene-based association testing with the predicted expression models in tissues related with nerve, artery, and non-lobar brain, we found that experiment-wide significant (P < 8.5 × 10-7) associations at three genes at 2q33 including NBEAL1, FAM117B and WDR12 and genome-wide significant associations at two genes including ICA1L at 2q33 and ZCCHC14 at 16q24. Brain cell-type specific expression profiling libraries reveal that SEMA4A, SLC25A44 and PMF1 at 1q22 and COL4A1 and COL4A2 at 13q34 were mainly expressed in endothelial cells, while the genes at 2q33 (FAM117B, CARF and NBEAL1) were expressed in various cell types including astrocytes, oligodendrocytes and neurons. Our cross-phenotype genetic study of intracerebral haemorrhage and SVS demonstrates novel genome-wide associations for non-lobar intracerebral haemorrhage at 2q33 and 13q34. Our replication of the 1q22 locus previous seen in traditional GWAS of intracerebral haemorrhage, as well as the rediscovery of 13q34, which had previously been reported in candidate gene studies with other cerebral small vessel disease-related traits strengthens the credibility of applying this novel genome-wide approach across intracerebral haemorrhage and SVS.
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Affiliation(s)
- Jaeyoon Chung
- Center for Genomic Medicine, Massachusetts General Hospital, Boston, MA, USA.,Program in Medical and Population Genetics, Broad Institute, Cambridge, MA, USA
| | - Sandro Marini
- Center for Genomic Medicine, Massachusetts General Hospital, Boston, MA, USA.,Program in Medical and Population Genetics, Broad Institute, Cambridge, MA, USA
| | - Joanna Pera
- Department of Neurology, Jagiellonian University Medical College, Krakow, Poland
| | - Bo Norrving
- Department of Clinical Sciences Lund, Neurology, Lund University, Lund, Sweden.,Department of Neurology and Rehabilitation Medicine, Skåne University Hospital, Lund, Sweden
| | - Jordi Jimenez-Conde
- Department of Neurology, Neurovascular Research Unit, Institut Hospital del Mar d'Investigacions Mèdiques, Universitat Autonoma de Barcelona, Barcelona, Spain
| | - Jaume Roquer
- Department of Neurology, Neurovascular Research Unit, Institut Hospital del Mar d'Investigacions Mèdiques, Universitat Autonoma de Barcelona, Barcelona, Spain
| | - Israel Fernandez-Cadenas
- Neurovascular Research Laboratory and Neurovascular Unit, Institut de Recerca, Hospital Vall d'Hebron, Universitat Autonoma de Barcelona, Barcelona, Spain.,Stroke Pharmacogenomics and Genetics, Sant Pau Institute of Research, Hospital de la Santa Creu I Sant Pau, Barcelona, Spain
| | - David L Tirschwell
- Stroke Center, Harborview Medical Center, University of Washington, Seattle, WA, USA
| | - Magdy Selim
- Department of Neurology, Stroke Division, Beth Israel Deaconess Medical Center, Boston, MA, USA
| | - Devin L Brown
- Stroke Program, Department of Neurology, University of Michigan, Ann Arbor, MI, USA
| | - Scott L Silliman
- Department of Neurology, University of Florida College of Medicine, Jacksonville, FL, USA
| | - Bradford B Worrall
- Department of Neurology and Public Health Sciences, University of Virginia Health System, Charlottesville, VA, USA
| | | | - Stacie Demel
- Department of Neurology and Rehabilitation Medicine, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Steven M Greenberg
- The J. Philip Kistler Stroke Research Center, Massachusetts General Hospital, Boston, MA, USA
| | - Agnieszka Slowik
- Department of Neurology, Jagiellonian University Medical College, Krakow, Poland
| | - Arne Lindgren
- Department of Clinical Sciences Lund, Neurology, Lund University, Lund, Sweden.,Department of Neurology and Rehabilitation Medicine, Skåne University Hospital, Lund, Sweden
| | - Reinhold Schmidt
- Department of Neurology, Medical University of Graz, Graz, Austria
| | - Matthew Traylor
- Department of Clinical Neurosciences, University of Cambridge, Cambridge, UK
| | | | - Steffen Tiedt
- Institute for Stroke and Dementia Research, University Hospital, LMU Munich, Munich, Germany.,Munich Cluster for Systems Neurology (SyNergy), Munich, Germany
| | - Rainer Malik
- Institute for Stroke and Dementia Research, University Hospital, LMU Munich, Munich, Germany.,Munich Cluster for Systems Neurology (SyNergy), Munich, Germany
| | - Stéphanie Debette
- University of Bordeaux, INSERM U1219, Bordeaux Population Health Research Center, Bordeaux, France.,Department of Neurology, Memory Clinic, Bordeaux University Hospital, University of Bordeaux, Bordeaux, France
| | - Martin Dichgans
- Institute for Stroke and Dementia Research, University Hospital, LMU Munich, Munich, Germany.,Munich Cluster for Systems Neurology (SyNergy), Munich, Germany.,German Center for Neurodegenerative Diseases (DZNE, Munich), Munich, Germany
| | - Carl D Langefeld
- Center for Public Health Genomics and Department of Biostatistical Sciences, Wake Forest School of Medicine, Winston-Salem, NC, USA
| | - Daniel Woo
- Department of Neurology and Rehabilitation Medicine, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Jonathan Rosand
- Center for Genomic Medicine, Massachusetts General Hospital, Boston, MA, USA.,Program in Medical and Population Genetics, Broad Institute, Cambridge, MA, USA.,Department of Neurology, Massachusetts General Hospital, Boston, MA, USA
| | - Christopher D Anderson
- Center for Genomic Medicine, Massachusetts General Hospital, Boston, MA, USA.,Program in Medical and Population Genetics, Broad Institute, Cambridge, MA, USA.,Department of Neurology, Massachusetts General Hospital, Boston, MA, USA
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Ngandu Mpoyi E, Cantini M, Sin YY, Fleming L, Zhou DW, Costell M, Lu Y, Kadler K, García AJ, Van Agtmael T, Salmeron-Sanchez M. Material-driven fibronectin assembly rescues matrix defects due to mutations in collagen IV in fibroblasts. Biomaterials 2020; 252:120090. [PMID: 32413593 DOI: 10.1016/j.biomaterials.2020.120090] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2020] [Accepted: 05/02/2020] [Indexed: 01/01/2023]
Abstract
Basement membranes (BMs) are specialised extracellular matrices that provide structural support to tissues as well as influence cell behaviour and signalling. Mutations in COL4A1/COL4A2, a major BM component, cause a familial form of eye, kidney and cerebrovascular disease, including stroke, while common variants in these genes are a risk factor for intracerebral haemorrhage in the general population. These phenotypes are associated with matrix defects, due to mutant protein incorporation in the BM and/or its absence by endoplasmic reticulum (ER) retention. However, the effects of these mutations on matrix stiffness, the contribution of the matrix to the disease mechanism(s) and its effects on the biology of cells harbouring a collagen IV mutation remain poorly understood. To shed light on this, we employed synthetic polymer biointerfaces, poly(ethyl acrylate) (PEA) and poly(methyl acrylate) (PMA) coated with ECM proteins laminin or fibronectin (FN), to generate controlled microenvironments and investigate their effects on the cellular phenotype of primary fibroblasts harbouring a COL4A2+/G702D mutation. FN nanonetworks assembled on PEA induced increased deposition and assembly of collagen IV in COL4A2+/G702D cells, which was associated with reduced ER size and enhanced levels of protein chaperones such as BIP, suggesting increased protein folding capacity of the cell. FN nanonetworks on PEA also partially rescued the reduced stiffness of the deposited matrix and cells, and enhanced cell adhesion through increased actin-myosin contractility, effectively rescuing some of the cellular phenotypes associated with COL4A1/4A2 mutations. The mechanism by which FN nanonetworks enhanced the cell phenotype involved integrin β1-mediated signalling. Collectively, these results suggest that biomaterials and enhanced integrin signalling via assembled FN are able to shape the matrix and cellular phenotype of the COL4A2+/G702D mutation in patient-derived cells.
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Affiliation(s)
- Elie Ngandu Mpoyi
- Centre for the Cellular Microenvironment, University of Glasgow, Glasgow, G12 8LT, UK
| | - Marco Cantini
- Centre for the Cellular Microenvironment, University of Glasgow, Glasgow, G12 8LT, UK
| | - Yuan Yan Sin
- Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, G12 8QQ, UK
| | - Lauren Fleming
- Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, G12 8QQ, UK
| | - Dennis W Zhou
- Woodruff School of Mechanical Engineering & Petit Institute for Bioengineering and Bioscience, Georgia Institute of Technology, Atlanta, GA, 30332, USA
| | - Mercedes Costell
- Departament de Bioquimica i Biologia Molecular, Universitat de València, Doctor Moliner s/n, 46100, Burjassot, Spain
| | - Yinhui Lu
- Wellcome Trust Centre for Cell Matrix Research, Faculty of Biology, Medicine & Health, University of Manchester, Manchester, M13 9PT, UK
| | - Karl Kadler
- Wellcome Trust Centre for Cell Matrix Research, Faculty of Biology, Medicine & Health, University of Manchester, Manchester, M13 9PT, UK
| | - Andrés J García
- Woodruff School of Mechanical Engineering & Petit Institute for Bioengineering and Bioscience, Georgia Institute of Technology, Atlanta, GA, 30332, USA
| | - Tom Van Agtmael
- Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, G12 8QQ, UK.
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Abstract
Translational genomics represents a broad field of study that combines genome and transcriptome-wide studies in humans and model systems to refine our understanding of human biology and ultimately identify new ways to treat and prevent disease. The approaches to translational genomics can be broadly grouped into two methodologies, forward and reverse genomic translation. Traditional (forward) genomic translation begins with model systems and aims at using unbiased genetic associations in these models to derive insight into biological mechanisms that may also be relevant in human disease. Reverse genomic translation begins with observations made through human genomic studies and refines these observations through follow-up studies using model systems. The ultimate goal of these approaches is to clarify intervenable processes as targets for therapeutic development. In this review, we describe some of the approaches being taken to apply translational genomics to the study of diseases commonly encountered in the neurocritical care setting, including hemorrhagic and ischemic stroke, traumatic brain injury, subarachnoid hemorrhage, and status epilepticus, utilizing both forward and reverse genomic translational techniques. Further, we highlight approaches in the field that could be applied in neurocritical care to improve our ability to identify new treatment modalities as well as to provide important information to patients about risk and prognosis.
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Affiliation(s)
- Pavlos Myserlis
- Center for Genomic Medicine, Massachusetts General Hospital, 185 Cambridge Street, CPZN 6818, Boston, MA, 02114, USA
- Program in Medical and Population Genetics, Broad Institute, Cambridge, MA, USA
| | - Farid Radmanesh
- Division of Neurocritical Care and Emergency Neurology, Department of Neurology, Massachusetts General Hospital, Boston, MA, USA
| | - Christopher D Anderson
- Center for Genomic Medicine, Massachusetts General Hospital, 185 Cambridge Street, CPZN 6818, Boston, MA, 02114, USA.
- Program in Medical and Population Genetics, Broad Institute, Cambridge, MA, USA.
- Division of Neurocritical Care and Emergency Neurology, Department of Neurology, Massachusetts General Hospital, Boston, MA, USA.
- Henry and Allison McCance Center for Brain Health, Massachusetts General Hospital, Boston, MA, USA.
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Embryonic endothelial evolution towards first hematopoietic stem cells revealed by single-cell transcriptomic and functional analyses. Cell Res 2020; 30:376-392. [PMID: 32203131 PMCID: PMC7196075 DOI: 10.1038/s41422-020-0300-2] [Citation(s) in RCA: 75] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Accepted: 02/24/2020] [Indexed: 02/07/2023] Open
Abstract
Hematopoietic stem cells (HSCs) in adults are believed to be born from hemogenic endothelial cells (HECs) in mid-gestational embryos. Due to the rare and transient nature, the HSC-competent HECs have never been stringently identified and accurately captured, let alone their genuine vascular precursors. Here, we first used high-precision single-cell transcriptomics to unbiasedly examine the relevant EC populations at continuous developmental stages with intervals of 0.5 days from embryonic day (E) 9.5 to E11.0. As a consequence, we transcriptomically identified two molecularly different arterial EC populations and putative HSC-primed HECs, whose number peaked at E10.0 and sharply decreased thereafter, in the dorsal aorta of the aorta-gonad-mesonephros (AGM) region. Combining computational prediction and in vivo functional validation, we precisely captured HSC-competent HECs by the newly constructed Neurl3-EGFP reporter mouse model, and realized the enrichment further by a combination of surface markers (Procr+Kit+CD44+, PK44). Surprisingly, the endothelial-hematopoietic dual potential was rarely but reliably witnessed in the cultures of single HECs. Noteworthy, primitive vascular ECs from E8.0 experienced two-step fate choices to become HSC-primed HECs, namely an initial arterial fate choice followed by a hemogenic fate conversion. This finding resolves several previously observed contradictions. Taken together, comprehensive understanding of endothelial evolutions and molecular programs underlying HSC-primed HEC specification in vivo will facilitate future investigations directing HSC production in vitro.
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Pineda-Ramírez N, Calzada F, Alquisiras-Burgos I, Medina-Campos ON, Pedraza-Chaverri J, Ortiz-Plata A, Pinzón Estrada E, Torres I, Aguilera P. Antioxidant Properties and Protective Effects of Some Species of the Annonaceae, Lamiaceae, and Geraniaceae Families against Neuronal Damage Induced by Excitotoxicity and Cerebral Ischemia. Antioxidants (Basel) 2020; 9:E253. [PMID: 32244955 PMCID: PMC7139819 DOI: 10.3390/antiox9030253] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2020] [Revised: 03/17/2020] [Accepted: 03/18/2020] [Indexed: 12/17/2022] Open
Abstract
This study aimed to compare the antioxidant activities of extracts obtained from three plant families and evaluate their therapeutic effect on strokes. Ethanol extracts were obtained from either the leaf or the aerial parts of plants of the families Annonaceae (Annona cherimola, A. diversifolia, A. muricata, A. purpurea, and A. reticulata), Lamiaceae (Salvia amaríssima and S. polystachya), and Geraniaceae (Geranium niveum and G. mexicanum). Extracts were analyzed in terms of hydroxyl radical (OH•), peroxyl radical (ROO•), and superoxide anion (O2•-). The efficiency of the extracts to prevent neuronal death induced by excitotoxicity was tested with the tetrazolium assay, the O2•- scavenging capacity was evaluated with the dihydroethidium dye, and the protective effect of the extracts with the highest antioxidant activity was tested on a stroke experimental model. The extracts' IC50 values (μg/mL) of scavenging varied from 98.9 to 155.04, 4.5 to 102.4, and 20.2 to 118.97 for OH•, ROO•, and O2•-, respectively. In the excitotoxicity model, Annonaceae extracts were highly cytotoxic while Lamiaceae and Geraniaceae reduced intracellular O2•- production and protect neurons against oxidative stress. Salvia polystachya reduced cerebral damage, as well as improved survival and behavior after ischemia. Our results encouraged the use of plant extracts as natural antioxidants to minimize neuronal injury following stroke.
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Affiliation(s)
- Narayana Pineda-Ramírez
- Laboratorio de Patología Vascular Cerebral, Instituto Nacional de Neurología y Neurocirugía “Manuel Velasco Suárez”, México CDMX 14269, Mexico; (N.P.-R.); (I.A.-B.)
| | - Fernando Calzada
- Unidad de Investigación Médica en Farmacología, Hospital de Especialidades, 2 piso CORSE, Centro Médico Nacional Siglo XXI, IMSS, México CDMX 06725, Mexico;
| | - Iván Alquisiras-Burgos
- Laboratorio de Patología Vascular Cerebral, Instituto Nacional de Neurología y Neurocirugía “Manuel Velasco Suárez”, México CDMX 14269, Mexico; (N.P.-R.); (I.A.-B.)
| | - Omar Noel Medina-Campos
- Departamento de Biología, Facultad de Química, Universidad Nacional Autónoma de México, México CDMX 04510, Mexico; (O.N.M.-C.); (J.P.-C.)
| | - José Pedraza-Chaverri
- Departamento de Biología, Facultad de Química, Universidad Nacional Autónoma de México, México CDMX 04510, Mexico; (O.N.M.-C.); (J.P.-C.)
| | - Alma Ortiz-Plata
- Laboratorio de Neuropatología Experimental. Instituto Nacional de Neurología y Neurocirugía “Manuel Velasco Suárez”, México CDMX 14269, Mexico;
| | - Enrique Pinzón Estrada
- Unidad del Bioterio, Facultad de Medicina, Universidad Nacional Autónoma de México, México CDMX 04510, Mexico; (E.P.E.); (I.T.)
| | - Ismael Torres
- Unidad del Bioterio, Facultad de Medicina, Universidad Nacional Autónoma de México, México CDMX 04510, Mexico; (E.P.E.); (I.T.)
| | - Penélope Aguilera
- Laboratorio de Patología Vascular Cerebral, Instituto Nacional de Neurología y Neurocirugía “Manuel Velasco Suárez”, México CDMX 14269, Mexico; (N.P.-R.); (I.A.-B.)
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Affiliation(s)
- Minkyung Kang
- From the Department of Pharmaceutical and Biomedical Sciences, University of Georgia, Athens, GA
| | - Yao Yao
- From the Department of Pharmaceutical and Biomedical Sciences, University of Georgia, Athens, GA
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Yaramis A, Lochmüller H, Töpf A, Sonmezler E, Yilmaz E, Hiz S, Yis U, Gungor S, Ipek Polat A, Edem P, Beltran S, Laurie S, Yaramis A, Horvath R, Oktay Y. COL4A1-related autosomal recessive encephalopathy in 2 Turkish children. Neurol Genet 2020; 6:e392. [PMID: 32042920 PMCID: PMC6975172 DOI: 10.1212/nxg.0000000000000392] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2019] [Accepted: 10/08/2019] [Indexed: 12/01/2022]
Abstract
OBJECTIVE This study presents the neurologic phenotypes of 2 brothers with a novel homozygous COL4A1 mutation that was identified in a large Turkish consanguineous cohort of neurogenetic diseases. METHODS Whole-exome sequencing and bioinformatic analysis of consanguineous families with children affected by early-onset, neurogenetic disorders was performed using the RD-Connect Genome-Phenome Analysis Platform. We also performed clinical, EEG, and neuroimaging analyses in unaffected siblings and parents. RESULTS We have identified a homozygous missense mutation in COL4A1 (p.Gly1278Ser, NM_001845.5:c.3832G>T) in 2 siblings affected by small vessel brain disease with periventricular leukoencephalopathy and ocular defects. Presenting symptoms included mild weakness, hemiparetic gait, pyramidal findings, and seizures, whereas their intellectual and behavioral functions were normal. Both parents and 5 of the siblings (3 boys and 2 girls) were heterozygous for the variant. They did not show any clinical or laboratory signs of small vessel disease. CONCLUSIONS COL4A1 has previously been associated with dominant small vessel disease of the brain and other organs, manifesting with high penetrance in heterozygous mutation carriers. Our findings provide evidence that COL4A1-related encephalopathy can be inherited in an autosomal recessive manner, which is important for counseling, prognosis, and treatment. Genotype-phenotype correlations remain to be established.
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Affiliation(s)
- Ahmet Yaramis
- Pediatric Neurology Clinic (A.Y.), Private Office, Diyarbakir, Turkey; Children's Hospital of Eastern Ontario Research Institute (H.L.), University of Ottawa, Canada; Division of Neurology (H.L.), Department of Medicine, The Ottawa Hospital, Canada; John Walton Muscular Dystrophy Research Centre (A.T.), Institute of Genetic Medicine, Newcastle University, UK; Dokuz Eylul University (S.H., E.S., E.Y., Y.O.), Izmir International Biomedicine and Genome Institute, Turkey; Faculty of Medicine (S.H., U.Y., A.I.P., P.E.), Department of Paediatric Neurology, Dokuz Eylul University, Izmir, Turkey; Faculty of Medicine (S.G.), Turgut Ozal Research Center, Department of Paediatric Neurology, Inonu University, Malatya, Turkey; CNAG-CRG (S.L., H.L., S.B.), Centre for Genomic Regulation, Barcelona Institute of Science and Technology, Spain; Universitat Pompeu Fabra (S.L.), Barcelona, Spain; Koc University (A.Y.), School of Medicine, Medical Student, Istanbul, Turkey; Department of Clinical Neurosciences (R.H.), University of Cambridge School of Clinical Medicine, UK; Izmir Biomedicine and Genome Center (Y.O.), Dokuz Eylul University Health Campus, Turkey; and Faculty of Medicine (Y.O.), Department of Medical Biology, Dokuz Eylul University, Izmir, Turkey
| | - Hanns Lochmüller
- Pediatric Neurology Clinic (A.Y.), Private Office, Diyarbakir, Turkey; Children's Hospital of Eastern Ontario Research Institute (H.L.), University of Ottawa, Canada; Division of Neurology (H.L.), Department of Medicine, The Ottawa Hospital, Canada; John Walton Muscular Dystrophy Research Centre (A.T.), Institute of Genetic Medicine, Newcastle University, UK; Dokuz Eylul University (S.H., E.S., E.Y., Y.O.), Izmir International Biomedicine and Genome Institute, Turkey; Faculty of Medicine (S.H., U.Y., A.I.P., P.E.), Department of Paediatric Neurology, Dokuz Eylul University, Izmir, Turkey; Faculty of Medicine (S.G.), Turgut Ozal Research Center, Department of Paediatric Neurology, Inonu University, Malatya, Turkey; CNAG-CRG (S.L., H.L., S.B.), Centre for Genomic Regulation, Barcelona Institute of Science and Technology, Spain; Universitat Pompeu Fabra (S.L.), Barcelona, Spain; Koc University (A.Y.), School of Medicine, Medical Student, Istanbul, Turkey; Department of Clinical Neurosciences (R.H.), University of Cambridge School of Clinical Medicine, UK; Izmir Biomedicine and Genome Center (Y.O.), Dokuz Eylul University Health Campus, Turkey; and Faculty of Medicine (Y.O.), Department of Medical Biology, Dokuz Eylul University, Izmir, Turkey
| | - Ana Töpf
- Pediatric Neurology Clinic (A.Y.), Private Office, Diyarbakir, Turkey; Children's Hospital of Eastern Ontario Research Institute (H.L.), University of Ottawa, Canada; Division of Neurology (H.L.), Department of Medicine, The Ottawa Hospital, Canada; John Walton Muscular Dystrophy Research Centre (A.T.), Institute of Genetic Medicine, Newcastle University, UK; Dokuz Eylul University (S.H., E.S., E.Y., Y.O.), Izmir International Biomedicine and Genome Institute, Turkey; Faculty of Medicine (S.H., U.Y., A.I.P., P.E.), Department of Paediatric Neurology, Dokuz Eylul University, Izmir, Turkey; Faculty of Medicine (S.G.), Turgut Ozal Research Center, Department of Paediatric Neurology, Inonu University, Malatya, Turkey; CNAG-CRG (S.L., H.L., S.B.), Centre for Genomic Regulation, Barcelona Institute of Science and Technology, Spain; Universitat Pompeu Fabra (S.L.), Barcelona, Spain; Koc University (A.Y.), School of Medicine, Medical Student, Istanbul, Turkey; Department of Clinical Neurosciences (R.H.), University of Cambridge School of Clinical Medicine, UK; Izmir Biomedicine and Genome Center (Y.O.), Dokuz Eylul University Health Campus, Turkey; and Faculty of Medicine (Y.O.), Department of Medical Biology, Dokuz Eylul University, Izmir, Turkey
| | - Ece Sonmezler
- Pediatric Neurology Clinic (A.Y.), Private Office, Diyarbakir, Turkey; Children's Hospital of Eastern Ontario Research Institute (H.L.), University of Ottawa, Canada; Division of Neurology (H.L.), Department of Medicine, The Ottawa Hospital, Canada; John Walton Muscular Dystrophy Research Centre (A.T.), Institute of Genetic Medicine, Newcastle University, UK; Dokuz Eylul University (S.H., E.S., E.Y., Y.O.), Izmir International Biomedicine and Genome Institute, Turkey; Faculty of Medicine (S.H., U.Y., A.I.P., P.E.), Department of Paediatric Neurology, Dokuz Eylul University, Izmir, Turkey; Faculty of Medicine (S.G.), Turgut Ozal Research Center, Department of Paediatric Neurology, Inonu University, Malatya, Turkey; CNAG-CRG (S.L., H.L., S.B.), Centre for Genomic Regulation, Barcelona Institute of Science and Technology, Spain; Universitat Pompeu Fabra (S.L.), Barcelona, Spain; Koc University (A.Y.), School of Medicine, Medical Student, Istanbul, Turkey; Department of Clinical Neurosciences (R.H.), University of Cambridge School of Clinical Medicine, UK; Izmir Biomedicine and Genome Center (Y.O.), Dokuz Eylul University Health Campus, Turkey; and Faculty of Medicine (Y.O.), Department of Medical Biology, Dokuz Eylul University, Izmir, Turkey
| | - Elmasnur Yilmaz
- Pediatric Neurology Clinic (A.Y.), Private Office, Diyarbakir, Turkey; Children's Hospital of Eastern Ontario Research Institute (H.L.), University of Ottawa, Canada; Division of Neurology (H.L.), Department of Medicine, The Ottawa Hospital, Canada; John Walton Muscular Dystrophy Research Centre (A.T.), Institute of Genetic Medicine, Newcastle University, UK; Dokuz Eylul University (S.H., E.S., E.Y., Y.O.), Izmir International Biomedicine and Genome Institute, Turkey; Faculty of Medicine (S.H., U.Y., A.I.P., P.E.), Department of Paediatric Neurology, Dokuz Eylul University, Izmir, Turkey; Faculty of Medicine (S.G.), Turgut Ozal Research Center, Department of Paediatric Neurology, Inonu University, Malatya, Turkey; CNAG-CRG (S.L., H.L., S.B.), Centre for Genomic Regulation, Barcelona Institute of Science and Technology, Spain; Universitat Pompeu Fabra (S.L.), Barcelona, Spain; Koc University (A.Y.), School of Medicine, Medical Student, Istanbul, Turkey; Department of Clinical Neurosciences (R.H.), University of Cambridge School of Clinical Medicine, UK; Izmir Biomedicine and Genome Center (Y.O.), Dokuz Eylul University Health Campus, Turkey; and Faculty of Medicine (Y.O.), Department of Medical Biology, Dokuz Eylul University, Izmir, Turkey
| | - Semra Hiz
- Pediatric Neurology Clinic (A.Y.), Private Office, Diyarbakir, Turkey; Children's Hospital of Eastern Ontario Research Institute (H.L.), University of Ottawa, Canada; Division of Neurology (H.L.), Department of Medicine, The Ottawa Hospital, Canada; John Walton Muscular Dystrophy Research Centre (A.T.), Institute of Genetic Medicine, Newcastle University, UK; Dokuz Eylul University (S.H., E.S., E.Y., Y.O.), Izmir International Biomedicine and Genome Institute, Turkey; Faculty of Medicine (S.H., U.Y., A.I.P., P.E.), Department of Paediatric Neurology, Dokuz Eylul University, Izmir, Turkey; Faculty of Medicine (S.G.), Turgut Ozal Research Center, Department of Paediatric Neurology, Inonu University, Malatya, Turkey; CNAG-CRG (S.L., H.L., S.B.), Centre for Genomic Regulation, Barcelona Institute of Science and Technology, Spain; Universitat Pompeu Fabra (S.L.), Barcelona, Spain; Koc University (A.Y.), School of Medicine, Medical Student, Istanbul, Turkey; Department of Clinical Neurosciences (R.H.), University of Cambridge School of Clinical Medicine, UK; Izmir Biomedicine and Genome Center (Y.O.), Dokuz Eylul University Health Campus, Turkey; and Faculty of Medicine (Y.O.), Department of Medical Biology, Dokuz Eylul University, Izmir, Turkey
| | - Uluc Yis
- Pediatric Neurology Clinic (A.Y.), Private Office, Diyarbakir, Turkey; Children's Hospital of Eastern Ontario Research Institute (H.L.), University of Ottawa, Canada; Division of Neurology (H.L.), Department of Medicine, The Ottawa Hospital, Canada; John Walton Muscular Dystrophy Research Centre (A.T.), Institute of Genetic Medicine, Newcastle University, UK; Dokuz Eylul University (S.H., E.S., E.Y., Y.O.), Izmir International Biomedicine and Genome Institute, Turkey; Faculty of Medicine (S.H., U.Y., A.I.P., P.E.), Department of Paediatric Neurology, Dokuz Eylul University, Izmir, Turkey; Faculty of Medicine (S.G.), Turgut Ozal Research Center, Department of Paediatric Neurology, Inonu University, Malatya, Turkey; CNAG-CRG (S.L., H.L., S.B.), Centre for Genomic Regulation, Barcelona Institute of Science and Technology, Spain; Universitat Pompeu Fabra (S.L.), Barcelona, Spain; Koc University (A.Y.), School of Medicine, Medical Student, Istanbul, Turkey; Department of Clinical Neurosciences (R.H.), University of Cambridge School of Clinical Medicine, UK; Izmir Biomedicine and Genome Center (Y.O.), Dokuz Eylul University Health Campus, Turkey; and Faculty of Medicine (Y.O.), Department of Medical Biology, Dokuz Eylul University, Izmir, Turkey
| | - Serdal Gungor
- Pediatric Neurology Clinic (A.Y.), Private Office, Diyarbakir, Turkey; Children's Hospital of Eastern Ontario Research Institute (H.L.), University of Ottawa, Canada; Division of Neurology (H.L.), Department of Medicine, The Ottawa Hospital, Canada; John Walton Muscular Dystrophy Research Centre (A.T.), Institute of Genetic Medicine, Newcastle University, UK; Dokuz Eylul University (S.H., E.S., E.Y., Y.O.), Izmir International Biomedicine and Genome Institute, Turkey; Faculty of Medicine (S.H., U.Y., A.I.P., P.E.), Department of Paediatric Neurology, Dokuz Eylul University, Izmir, Turkey; Faculty of Medicine (S.G.), Turgut Ozal Research Center, Department of Paediatric Neurology, Inonu University, Malatya, Turkey; CNAG-CRG (S.L., H.L., S.B.), Centre for Genomic Regulation, Barcelona Institute of Science and Technology, Spain; Universitat Pompeu Fabra (S.L.), Barcelona, Spain; Koc University (A.Y.), School of Medicine, Medical Student, Istanbul, Turkey; Department of Clinical Neurosciences (R.H.), University of Cambridge School of Clinical Medicine, UK; Izmir Biomedicine and Genome Center (Y.O.), Dokuz Eylul University Health Campus, Turkey; and Faculty of Medicine (Y.O.), Department of Medical Biology, Dokuz Eylul University, Izmir, Turkey
| | - Ayse Ipek Polat
- Pediatric Neurology Clinic (A.Y.), Private Office, Diyarbakir, Turkey; Children's Hospital of Eastern Ontario Research Institute (H.L.), University of Ottawa, Canada; Division of Neurology (H.L.), Department of Medicine, The Ottawa Hospital, Canada; John Walton Muscular Dystrophy Research Centre (A.T.), Institute of Genetic Medicine, Newcastle University, UK; Dokuz Eylul University (S.H., E.S., E.Y., Y.O.), Izmir International Biomedicine and Genome Institute, Turkey; Faculty of Medicine (S.H., U.Y., A.I.P., P.E.), Department of Paediatric Neurology, Dokuz Eylul University, Izmir, Turkey; Faculty of Medicine (S.G.), Turgut Ozal Research Center, Department of Paediatric Neurology, Inonu University, Malatya, Turkey; CNAG-CRG (S.L., H.L., S.B.), Centre for Genomic Regulation, Barcelona Institute of Science and Technology, Spain; Universitat Pompeu Fabra (S.L.), Barcelona, Spain; Koc University (A.Y.), School of Medicine, Medical Student, Istanbul, Turkey; Department of Clinical Neurosciences (R.H.), University of Cambridge School of Clinical Medicine, UK; Izmir Biomedicine and Genome Center (Y.O.), Dokuz Eylul University Health Campus, Turkey; and Faculty of Medicine (Y.O.), Department of Medical Biology, Dokuz Eylul University, Izmir, Turkey
| | - Pinar Edem
- Pediatric Neurology Clinic (A.Y.), Private Office, Diyarbakir, Turkey; Children's Hospital of Eastern Ontario Research Institute (H.L.), University of Ottawa, Canada; Division of Neurology (H.L.), Department of Medicine, The Ottawa Hospital, Canada; John Walton Muscular Dystrophy Research Centre (A.T.), Institute of Genetic Medicine, Newcastle University, UK; Dokuz Eylul University (S.H., E.S., E.Y., Y.O.), Izmir International Biomedicine and Genome Institute, Turkey; Faculty of Medicine (S.H., U.Y., A.I.P., P.E.), Department of Paediatric Neurology, Dokuz Eylul University, Izmir, Turkey; Faculty of Medicine (S.G.), Turgut Ozal Research Center, Department of Paediatric Neurology, Inonu University, Malatya, Turkey; CNAG-CRG (S.L., H.L., S.B.), Centre for Genomic Regulation, Barcelona Institute of Science and Technology, Spain; Universitat Pompeu Fabra (S.L.), Barcelona, Spain; Koc University (A.Y.), School of Medicine, Medical Student, Istanbul, Turkey; Department of Clinical Neurosciences (R.H.), University of Cambridge School of Clinical Medicine, UK; Izmir Biomedicine and Genome Center (Y.O.), Dokuz Eylul University Health Campus, Turkey; and Faculty of Medicine (Y.O.), Department of Medical Biology, Dokuz Eylul University, Izmir, Turkey
| | - Sergi Beltran
- Pediatric Neurology Clinic (A.Y.), Private Office, Diyarbakir, Turkey; Children's Hospital of Eastern Ontario Research Institute (H.L.), University of Ottawa, Canada; Division of Neurology (H.L.), Department of Medicine, The Ottawa Hospital, Canada; John Walton Muscular Dystrophy Research Centre (A.T.), Institute of Genetic Medicine, Newcastle University, UK; Dokuz Eylul University (S.H., E.S., E.Y., Y.O.), Izmir International Biomedicine and Genome Institute, Turkey; Faculty of Medicine (S.H., U.Y., A.I.P., P.E.), Department of Paediatric Neurology, Dokuz Eylul University, Izmir, Turkey; Faculty of Medicine (S.G.), Turgut Ozal Research Center, Department of Paediatric Neurology, Inonu University, Malatya, Turkey; CNAG-CRG (S.L., H.L., S.B.), Centre for Genomic Regulation, Barcelona Institute of Science and Technology, Spain; Universitat Pompeu Fabra (S.L.), Barcelona, Spain; Koc University (A.Y.), School of Medicine, Medical Student, Istanbul, Turkey; Department of Clinical Neurosciences (R.H.), University of Cambridge School of Clinical Medicine, UK; Izmir Biomedicine and Genome Center (Y.O.), Dokuz Eylul University Health Campus, Turkey; and Faculty of Medicine (Y.O.), Department of Medical Biology, Dokuz Eylul University, Izmir, Turkey
| | - Steven Laurie
- Pediatric Neurology Clinic (A.Y.), Private Office, Diyarbakir, Turkey; Children's Hospital of Eastern Ontario Research Institute (H.L.), University of Ottawa, Canada; Division of Neurology (H.L.), Department of Medicine, The Ottawa Hospital, Canada; John Walton Muscular Dystrophy Research Centre (A.T.), Institute of Genetic Medicine, Newcastle University, UK; Dokuz Eylul University (S.H., E.S., E.Y., Y.O.), Izmir International Biomedicine and Genome Institute, Turkey; Faculty of Medicine (S.H., U.Y., A.I.P., P.E.), Department of Paediatric Neurology, Dokuz Eylul University, Izmir, Turkey; Faculty of Medicine (S.G.), Turgut Ozal Research Center, Department of Paediatric Neurology, Inonu University, Malatya, Turkey; CNAG-CRG (S.L., H.L., S.B.), Centre for Genomic Regulation, Barcelona Institute of Science and Technology, Spain; Universitat Pompeu Fabra (S.L.), Barcelona, Spain; Koc University (A.Y.), School of Medicine, Medical Student, Istanbul, Turkey; Department of Clinical Neurosciences (R.H.), University of Cambridge School of Clinical Medicine, UK; Izmir Biomedicine and Genome Center (Y.O.), Dokuz Eylul University Health Campus, Turkey; and Faculty of Medicine (Y.O.), Department of Medical Biology, Dokuz Eylul University, Izmir, Turkey
| | - Aysenur Yaramis
- Pediatric Neurology Clinic (A.Y.), Private Office, Diyarbakir, Turkey; Children's Hospital of Eastern Ontario Research Institute (H.L.), University of Ottawa, Canada; Division of Neurology (H.L.), Department of Medicine, The Ottawa Hospital, Canada; John Walton Muscular Dystrophy Research Centre (A.T.), Institute of Genetic Medicine, Newcastle University, UK; Dokuz Eylul University (S.H., E.S., E.Y., Y.O.), Izmir International Biomedicine and Genome Institute, Turkey; Faculty of Medicine (S.H., U.Y., A.I.P., P.E.), Department of Paediatric Neurology, Dokuz Eylul University, Izmir, Turkey; Faculty of Medicine (S.G.), Turgut Ozal Research Center, Department of Paediatric Neurology, Inonu University, Malatya, Turkey; CNAG-CRG (S.L., H.L., S.B.), Centre for Genomic Regulation, Barcelona Institute of Science and Technology, Spain; Universitat Pompeu Fabra (S.L.), Barcelona, Spain; Koc University (A.Y.), School of Medicine, Medical Student, Istanbul, Turkey; Department of Clinical Neurosciences (R.H.), University of Cambridge School of Clinical Medicine, UK; Izmir Biomedicine and Genome Center (Y.O.), Dokuz Eylul University Health Campus, Turkey; and Faculty of Medicine (Y.O.), Department of Medical Biology, Dokuz Eylul University, Izmir, Turkey
| | - Rita Horvath
- Pediatric Neurology Clinic (A.Y.), Private Office, Diyarbakir, Turkey; Children's Hospital of Eastern Ontario Research Institute (H.L.), University of Ottawa, Canada; Division of Neurology (H.L.), Department of Medicine, The Ottawa Hospital, Canada; John Walton Muscular Dystrophy Research Centre (A.T.), Institute of Genetic Medicine, Newcastle University, UK; Dokuz Eylul University (S.H., E.S., E.Y., Y.O.), Izmir International Biomedicine and Genome Institute, Turkey; Faculty of Medicine (S.H., U.Y., A.I.P., P.E.), Department of Paediatric Neurology, Dokuz Eylul University, Izmir, Turkey; Faculty of Medicine (S.G.), Turgut Ozal Research Center, Department of Paediatric Neurology, Inonu University, Malatya, Turkey; CNAG-CRG (S.L., H.L., S.B.), Centre for Genomic Regulation, Barcelona Institute of Science and Technology, Spain; Universitat Pompeu Fabra (S.L.), Barcelona, Spain; Koc University (A.Y.), School of Medicine, Medical Student, Istanbul, Turkey; Department of Clinical Neurosciences (R.H.), University of Cambridge School of Clinical Medicine, UK; Izmir Biomedicine and Genome Center (Y.O.), Dokuz Eylul University Health Campus, Turkey; and Faculty of Medicine (Y.O.), Department of Medical Biology, Dokuz Eylul University, Izmir, Turkey
| | - Yavuz Oktay
- Pediatric Neurology Clinic (A.Y.), Private Office, Diyarbakir, Turkey; Children's Hospital of Eastern Ontario Research Institute (H.L.), University of Ottawa, Canada; Division of Neurology (H.L.), Department of Medicine, The Ottawa Hospital, Canada; John Walton Muscular Dystrophy Research Centre (A.T.), Institute of Genetic Medicine, Newcastle University, UK; Dokuz Eylul University (S.H., E.S., E.Y., Y.O.), Izmir International Biomedicine and Genome Institute, Turkey; Faculty of Medicine (S.H., U.Y., A.I.P., P.E.), Department of Paediatric Neurology, Dokuz Eylul University, Izmir, Turkey; Faculty of Medicine (S.G.), Turgut Ozal Research Center, Department of Paediatric Neurology, Inonu University, Malatya, Turkey; CNAG-CRG (S.L., H.L., S.B.), Centre for Genomic Regulation, Barcelona Institute of Science and Technology, Spain; Universitat Pompeu Fabra (S.L.), Barcelona, Spain; Koc University (A.Y.), School of Medicine, Medical Student, Istanbul, Turkey; Department of Clinical Neurosciences (R.H.), University of Cambridge School of Clinical Medicine, UK; Izmir Biomedicine and Genome Center (Y.O.), Dokuz Eylul University Health Campus, Turkey; and Faculty of Medicine (Y.O.), Department of Medical Biology, Dokuz Eylul University, Izmir, Turkey
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49
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Marín‐Aguilar F, Lechuga‐Vieco AV, Alcocer‐Gómez E, Castejón‐Vega B, Lucas J, Garrido C, Peralta‐Garcia A, Pérez‐Pulido AJ, Varela‐López A, Quiles JL, Ryffel B, Flores I, Bullón P, Ruiz‐Cabello J, Cordero MD. NLRP3 inflammasome suppression improves longevity and prevents cardiac aging in male mice. Aging Cell 2020; 19:e13050. [PMID: 31625260 PMCID: PMC6974709 DOI: 10.1111/acel.13050] [Citation(s) in RCA: 96] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2019] [Revised: 09/19/2019] [Accepted: 09/23/2019] [Indexed: 12/17/2022] Open
Abstract
While NLRP3‐inflammasome has been implicated in cardiovascular diseases, its role in physiological cardiac aging is largely unknown. During aging, many alterations occur in the organism, which are associated with progressive impairment of metabolic pathways related to insulin resistance, autophagy dysfunction, and inflammation. Here, we investigated the molecular mechanisms through which NLRP3 inhibition may attenuate cardiac aging. Ablation of NLRP3‐inflammasome protected mice from age‐related increased insulin sensitivity, reduced IGF‐1 and leptin/adiponectin ratio levels, and reduced cardiac damage with protection of the prolongation of the age‐dependent PR interval, which is associated with atrial fibrillation by cardiovascular aging and reduced telomere shortening. Furthermore, old NLRP3 KO mice showed an inhibition of the PI3K/AKT/mTOR pathway and autophagy improvement, compared with old wild mice and preserved Nampt‐mediated NAD+ levels with increased SIRT1 protein expression. These findings suggest that suppression of NLRP3 prevented many age‐associated changes in the heart, preserved cardiac function of aged mice and increased lifespan.
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Affiliation(s)
| | - Ana V. Lechuga‐Vieco
- Centro Nacional de Investigaciones Cardiovasculares Carlos III (CNIC) Madrid Spain
- CIBER de Enfermedades Respiratorias (CIBERES) Madrid Spain
| | - Elísabet Alcocer‐Gómez
- Departamento de Psicología Experimental Facultad de Psicología Universidad de Sevilla Seville Spain
| | | | - Javier Lucas
- Centro Nacional de Investigaciones Cardiovasculares Carlos III (CNIC) Madrid Spain
| | - Carlos Garrido
- Centro Nacional de Investigaciones Cardiovasculares Carlos III (CNIC) Madrid Spain
| | - Alejandro Peralta‐Garcia
- Centro Andaluz de Biología del Desarrollo (CABD) Universidad Pablo de Olavide‐CSIC‐Junta de Andalucía Sevilla Spain
| | - Antonio J. Pérez‐Pulido
- Centro Andaluz de Biología del Desarrollo (CABD) Universidad Pablo de Olavide‐CSIC‐Junta de Andalucía Sevilla Spain
| | - Alfonso Varela‐López
- Institute of Nutrition and Food Technology "José Mataix Verdú" Department of Physiology Biomedical Research Center University of Granada Granada Spain
| | - José L. Quiles
- Institute of Nutrition and Food Technology "José Mataix Verdú" Department of Physiology Biomedical Research Center University of Granada Granada Spain
| | - Bernhard Ryffel
- Laboratory of Experimental and Molecular Immunology and Neurogenetics (INEM) UMR 7355 CNRS‐University of Orleans Orléans France
- IDM University of Cape Town Cape Town South Africa
| | - Ignacio Flores
- Centro Nacional de Investigaciones Cardiovasculares Carlos III (CNIC) Madrid Spain
| | - Pedro Bullón
- Research Laboratory Oral Medicine Department University of Sevilla Sevilla Spain
| | - Jesús Ruiz‐Cabello
- CIBER de Enfermedades Respiratorias (CIBERES) Madrid Spain
- CIC biomaGUNE San Sebastian‐Donostia Spain
- IKERBASQUE Basque Foundation for Science Bilbao Spain
- Universidad Complutense Madrid Madrid Spain
| | - Mario D. Cordero
- Institute of Nutrition and Food Technology "José Mataix Verdú" Department of Physiology Biomedical Research Center University of Granada Granada Spain
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50
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Rehorst WA, Thelen MP, Nolte H, Türk C, Cirak S, Peterson JM, Wong GW, Wirth B, Krüger M, Winter D, Kye MJ. Muscle regulates mTOR dependent axonal local translation in motor neurons via CTRP3 secretion: implications for a neuromuscular disorder, spinal muscular atrophy. Acta Neuropathol Commun 2019; 7:154. [PMID: 31615574 PMCID: PMC6794869 DOI: 10.1186/s40478-019-0806-3] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2019] [Accepted: 09/07/2019] [Indexed: 12/19/2022] Open
Abstract
Spinal muscular atrophy (SMA) is an inherited neuromuscular disorder, which causes dysfunction/loss of lower motor neurons and muscle weakness as well as atrophy. While SMA is primarily considered as a motor neuron disease, recent data suggests that survival motor neuron (SMN) deficiency in muscle causes intrinsic defects. We systematically profiled secreted proteins from control and SMN deficient muscle cells with two combined metabolic labeling methods and mass spectrometry. From the screening, we found lower levels of C1q/TNF-related protein 3 (CTRP3) in the SMA muscle secretome and confirmed that CTRP3 levels are indeed reduced in muscle tissues and serum of an SMA mouse model. We identified that CTRP3 regulates neuronal protein synthesis including SMN via mTOR pathway. Furthermore, CTRP3 enhances axonal outgrowth and protein synthesis rate, which are well-known impaired processes in SMA motor neurons. Our data revealed a new molecular mechanism by which muscles regulate the physiology of motor neurons via secreted molecules. Dysregulation of this mechanism contributes to the pathophysiology of SMA.
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