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Osborn T, Mohammad A, Benham M, Careaga D, Gang X, Tejidor L. 90 Potential to Improve Treatment Decision Time With the Early Sepsis Indicator, Monocyte Distribution Width, in Patients Presenting to the Emergency Department With Suspicion of Infection. Ann Emerg Med 2021. [DOI: 10.1016/j.annemergmed.2021.09.099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Menon V, Thomas R, Elgueta C, Horl M, Osborn T, Hallett PJ, Bartos M, Isacson O, Pruszak J. Comprehensive Cell Surface Antigen Analysis Identifies Transferrin Receptor Protein-1 (CD71) as a Negative Selection Marker for Human Neuronal Cells. Stem Cells 2019; 37:1293-1306. [PMID: 31381839 PMCID: PMC6851846 DOI: 10.1002/stem.3057] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2018] [Revised: 04/23/2019] [Accepted: 05/14/2019] [Indexed: 12/20/2022]
Abstract
Cell state‐, developmental stage‐, and lineage‐specific combinatorial expression of cluster of differentiation (CD) molecules enables the identification of cellular subsets via multicolor flow cytometry. We describe an exhaustive characterization of neural cell types by surface antigens, exploiting human pluripotent stem cell‐derived neural cell systems. Using multiwell screening approaches followed by detailed validation of expression patterns and dynamics, we exemplify a strategy for resolving cellular heterogeneity in stem cell paradigms. In addition to providing a catalog of surface antigens expressed in the neural lineage, we identified the transferrin receptor‐1 (CD71) to be differentially expressed in neural stem cells and differentiated neurons. In this context, we describe a role for N‐Myc proto‐oncogene (MYCN) in maintaining CD71 expression in proliferating neural cells. We report that in vitro human stem cell‐derived neurons lack CD71 surface expression and that the observed differential expression can be used to identify and enrich CD71− neuronal derivatives from heterogeneous cultures. stem cells2019;37:1293–1306
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Affiliation(s)
- Vishal Menon
- Department of Molecular Embryology, Institute of Anatomy and Cell Biology, Faculty of Medicine, University of Freiburg, Freiburg, Germany.,Spemann Graduate School of Biology and Medicine (SGBM) and Faculty of Biology, University of Freiburg, Freiburg, Germany.,Freiburg iPS Core (FiPS), Institute for Transfusion Medicine and Gene Therapy, Medical Center, University of Freiburg, Freiburg, Germany.,Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Ria Thomas
- Department of Molecular Embryology, Institute of Anatomy and Cell Biology, Faculty of Medicine, University of Freiburg, Freiburg, Germany.,Spemann Graduate School of Biology and Medicine (SGBM) and Faculty of Biology, University of Freiburg, Freiburg, Germany.,Neuroregeneration Laboratories, McLean Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Claudio Elgueta
- Institute for Physiology I, Cellular and Systemic Neurophysiology, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Marcus Horl
- Department of Molecular Embryology, Institute of Anatomy and Cell Biology, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Teresia Osborn
- Neuroregeneration Laboratories, McLean Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Penny J Hallett
- Neuroregeneration Laboratories, McLean Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Marlene Bartos
- Institute for Physiology I, Cellular and Systemic Neurophysiology, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Ole Isacson
- Neuroregeneration Laboratories, McLean Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Jan Pruszak
- Department of Molecular Embryology, Institute of Anatomy and Cell Biology, Faculty of Medicine, University of Freiburg, Freiburg, Germany.,Freiburg iPS Core (FiPS), Institute for Transfusion Medicine and Gene Therapy, Medical Center, University of Freiburg, Freiburg, Germany.,Center for Biological Signaling Studies (BIOSS), University of Freiburg, Freiburg, Germany
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Abstract
Transplantation of human pluripotent stem cell-derived dopaminergic neurons is a promising approach to treating Parkinson's disease. In this issue of Cell Stem Cell, Kee et al. (2017) and Kirkeby et al. (2017) identify specific markers of midbrain dopaminergic progenitors to improve their derivation and predict dopamine neuron content after engraftment.
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Affiliation(s)
- Teresia Osborn
- Neuroregeneration Research Institute, McLean Hospital / Harvard Medical School, Belmont, MA 02478, USA
| | - Penelope J Hallett
- Neuroregeneration Research Institute, McLean Hospital / Harvard Medical School, Belmont, MA 02478, USA.
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Jin Z, Jensen MA, Dorschner JM, Vsetecka DM, Amin S, Makol A, Ernste F, Osborn T, Moder K, Chowdhary V, Niewold TB, Fan W. ID: 135: SINGLE CELL GENE EXPRESSION STUDIES IN LUPUS MONOCYTES REVEAL A UNIQUE ANTII-INFLAMMATORY NON-CLASSICAL MONOCYTE POPULATION ASSOCIATED WITH CLINICAL QUIESCENCE. J Investig Med 2016. [DOI: 10.1136/jim-2016-000120.138] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
BackgroundOur previous studies have shown that different cell types from the same blood sample demonstrate diverse gene expression parameters. In follow up work, it seems that this diversity extends to cells of the same type from the same blood sample. In this study, we examine single cell gene expression in SLE patient monocytes and determine correlations with clinical features.MethodsCD14++CD16− classical monocytes (CLs) and CD14dimCD16+ non-classical monocytes (NCLs) from SLE patients were purified by magnetic separation. The Fluidigm single cell capture and pre-amplification system was used for single cell capture and target gene pre-amplification. Fluidigm Biomark system (Rt-PCR system) was used to quantify expression of 87 monocyte-related genes. IFN-induced genes in monocytes were identified by culturing monocytes isolated from whole blood of healthy controls with or without IFN-α. Genes significant up-regulated by IFN were identified as IFN-induced genes in current study. An individual cell IFN score was given based upon the sum of expression of IFN-induced genes.ResultsBoth CLs and NCLs demonstrated a wide range of expression of IFN-induced genes, and NCL monocytes had higher IFN scores than CL monocytes. Using unsupervised hierarchical clustering, we found four gene sets that clustered monocytes functionally. These included an IFN-induced gene set, two inflammatory gene sets, and one immunosuppressive gene set. Interestingly, we could define a large subset of NCL monocytes with upregulation of suppressive transcripts (including TGF-β and PDL1) and IFN-induced transcripts were also upregulated, while the two inflammatory gene sets were down-regulated. These cells were highly over-represented in a patient with inactive disease who was on immunosuppressants at the time of blood draw. The proportion of anti-inflammatory gene set expressing NCLs was inversely correlated with anti-dsDNA titers (rho=−0.77, p=0.0051) and positively correlated with C3 complement (rho=0.68, p=0.030) in the SLE patient group, suggesting that these cells are also associated with serological quiescence.ConclusionUsing single cell gene expression, we have identified a unique population of NCL monocytes in SLE patients with upregulation of a combination of anti-inflammatory and IFN-induced transcripts. These cells correspond with clinical and serological quiescence.
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Smith GA, Jansson J, Rocha EM, Osborn T, Hallett PJ, Isacson O. Fibroblast Biomarkers of Sporadic Parkinson's Disease and LRRK2 Kinase Inhibition. Mol Neurobiol 2015; 53:5161-77. [PMID: 26399642 PMCID: PMC5012155 DOI: 10.1007/s12035-015-9435-4] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2015] [Accepted: 09/10/2015] [Indexed: 01/08/2023]
Abstract
It has been uncertain whether specific disease-relevant biomarker phenotypes can be found using sporadic Parkinson’s disease (PD) patient-derived samples, as it has been proposed that there may be a plethora of underlying causes and pathological mechanisms. Fibroblasts derived from familial PD patients harboring leucine-rich repeat kinase 2 (LRRK2), PTEN-induced putative kinase 1 (PINK1), and Parkin mutations show clear disease-relevant mitochondrial phenotypes, which are exacerbated under conditions of pharmacological stress. We utilized fibroblasts derived from non-familial sporadic PD patients (without LRRK2 mutations) or LRRK2 mutation carriers to directly compare the cellular phenotypes during and after mitochondrial stress. We then determined the effects of pharmacological LRRK2 kinase inhibition using LRRK2-in-1. We found that there were two distinct populations of sporadic PD patient-derived fibroblast lines. One group of sporadic PD lines was highly susceptible to valinomycin-induced mitochondrial depolarization, emulating the mutant LRRK2 phenotype. These lines showed elevated mitochondrial superoxide/ nitric oxide levels, displayed increased mitochondrial and lysosome co-localization, and an increased rate of mitochondrial collapse, which corresponded with changes in mitochondrial fission and fusion proteins. The application of LRRK2-in-1 reversed decreased levels of mitochondrial and lysosome co-localization and partially restored mitochondrial network associated proteins and the mitochondrial membrane potential in the fibroblasts. This study identifies novel mitochondrial biomarkers in sporadic PD patient-derived fibroblast lines, which could be used as preclinical tools in which to test novel and known neuroprotective compounds.
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Affiliation(s)
- G A Smith
- Neuroregeneration Research Institute, McLean Hospital/ Harvard Medical School, 115 Mill Street, Belmont, 02478, USA
| | - J Jansson
- Neuroregeneration Research Institute, McLean Hospital/ Harvard Medical School, 115 Mill Street, Belmont, 02478, USA
| | - E M Rocha
- Neuroregeneration Research Institute, McLean Hospital/ Harvard Medical School, 115 Mill Street, Belmont, 02478, USA
| | - T Osborn
- Neuroregeneration Research Institute, McLean Hospital/ Harvard Medical School, 115 Mill Street, Belmont, 02478, USA
| | - P J Hallett
- Neuroregeneration Research Institute, McLean Hospital/ Harvard Medical School, 115 Mill Street, Belmont, 02478, USA
| | - O Isacson
- Neuroregeneration Research Institute, McLean Hospital/ Harvard Medical School, 115 Mill Street, Belmont, 02478, USA.
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Jin Z, Fan W, Jensen M, Dorschner J, Vsetecka D, Amin S, Makol A, Ernste F, Osborn T, Moder K, Chowdhary V, Niewold T. THU0022 Single Cell Interferon Signatures in Lupus Patient Monocytes Reveal a Differential Impact of Interferon Signaling Between Monocyte Subtypes. Ann Rheum Dis 2015. [DOI: 10.1136/annrheumdis-2015-eular.5326] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Sagar V, Crowson C, Amin S, Makol A, Ernste F, Osborn T, Moder K, Niewold T, Maradit-Kremers H, Chowdhary V. THU0372 Incidence of Systemic Lupus Erythematosus (SLE) in a Population Based Cohort Using 1982, Revised 1997 ACR and 2012 SLICC Criteria. Ann Rheum Dis 2015. [DOI: 10.1136/annrheumdis-2015-eular.4180] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Lyle M, Fenstad E, Crespo-Diaz R, Osborn T, Behefar A, Kane G, Frantz R. Pulmonary Hypertension in the Setting of Sjögren’s Syndrome. J Heart Lung Transplant 2015. [DOI: 10.1016/j.healun.2015.01.386] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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Smith GA, Rocha EM, Rooney T, Barneoud P, McLean JR, Beagan J, Osborn T, Coimbra M, Luo Y, Hallett PJ, Isacson O. A Nurr1 agonist causes neuroprotection in a Parkinson's disease lesion model primed with the toll-like receptor 3 dsRNA inflammatory stimulant poly(I:C). PLoS One 2015; 10:e0121072. [PMID: 25815475 PMCID: PMC4376720 DOI: 10.1371/journal.pone.0121072] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2014] [Accepted: 01/28/2015] [Indexed: 02/02/2023] Open
Abstract
Dopaminergic neurons in the substantia nigra pars compacta (SNpc) are characterized by the expression of genes required for dopamine synthesis, handling and reuptake and the expression of these genes is largely controlled by nuclear receptor related 1 (Nurr1). Nurr1 is also expressed in astrocytes and microglia where it functions to mitigate the release of proinflammatory cytokines and neurotoxic factors. Given that Parkinson's disease (PD) pathogenesis has been linked to both loss of Nurr1 expression in the SNpc and inflammation, increasing levels of Nurr1 maybe a promising therapeutic strategy. In this study a novel Nurr1 agonist, SA00025, was tested for both its efficiency to induce the transcription of dopaminergic target genes in vivo and prevent dopaminergic neuron degeneration in an inflammation exacerbated 6-OHDA-lesion model of PD. SA00025 (30mg/kg p.o.) entered the brain and modulated the expression of the dopaminergic phenotype genes TH, VMAT, DAT, AADC and the GDNF receptor gene c-Ret in the SN of naive rats. Daily gavage treatment with SA00025 (30mg/kg) for 32 days also induced partial neuroprotection of dopaminergic neurons and fibers in rats administered a priming injection of polyinosinic-polycytidylic acid (poly(I:C) and subsequent injection of 6-OHDA. The neuroprotective effects of SA00025 in this dopamine neuron degeneration model were associated with changes in microglial morphology indicative of a resting state and a decrease in microglial specific IBA-1 staining intensity in the SNpc. Astrocyte specific GFAP staining intensity and IL-6 levels were also reduced. We conclude that Nurr1 agonist treatment causes neuroprotective and anti-inflammatory effects in an inflammation exacerbated 6-OHDA lesion model of PD.
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Affiliation(s)
- Gaynor A. Smith
- Neuroregeneration Research Institute, Harvard Medical School/McLean Hospital, Belmont, Massachusetts, United States of America
| | - Emily M. Rocha
- Neuroregeneration Research Institute, Harvard Medical School/McLean Hospital, Belmont, Massachusetts, United States of America
| | - Thomas Rooney
- Sanofi, Neurodegeneration and Pain Unit, Chilly-Mazarin, France
| | - Pascal Barneoud
- Sanofi, Neurodegeneration and Pain Unit, Chilly-Mazarin, France
| | - Jesse R. McLean
- Neuroregeneration Research Institute, Harvard Medical School/McLean Hospital, Belmont, Massachusetts, United States of America
| | - Jonathan Beagan
- Neuroregeneration Research Institute, Harvard Medical School/McLean Hospital, Belmont, Massachusetts, United States of America
| | - Teresia Osborn
- Neuroregeneration Research Institute, Harvard Medical School/McLean Hospital, Belmont, Massachusetts, United States of America
| | - Madeleine Coimbra
- Sanofi, Disposition, Safety & Animal Research, Department 1, Chilly-Mazarin, France
| | - Yongyi Luo
- Sanofi-Genzyme, Drug Metabolism and Pharmacokinetics Department, Waltham, Massachusetts, United States of America
| | - Penelope J. Hallett
- Neuroregeneration Research Institute, Harvard Medical School/McLean Hospital, Belmont, Massachusetts, United States of America
- * E-mail: (OI); (PJH)
| | - Ole Isacson
- Neuroregeneration Research Institute, Harvard Medical School/McLean Hospital, Belmont, Massachusetts, United States of America
- * E-mail: (OI); (PJH)
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Sundberg M, Bogetofte H, Lawson T, Jansson J, Smith G, Astradsson A, Moore M, Osborn T, Cooper O, Spealman R, Hallett P, Isacson O. Improved cell therapy protocols for Parkinson's disease based on differentiation efficiency and safety of hESC-, hiPSC-, and non-human primate iPSC-derived dopaminergic neurons. Stem Cells 2014; 31:1548-62. [PMID: 23666606 DOI: 10.1002/stem.1415] [Citation(s) in RCA: 167] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2013] [Accepted: 04/01/2013] [Indexed: 12/22/2022]
Abstract
The main motor symptoms of Parkinson's disease are due to the loss of dopaminergic (DA) neurons in the ventral midbrain (VM). For the future treatment of Parkinson's disease with cell transplantation it is important to develop efficient differentiation methods for production of human iPSCs and hESCs-derived midbrain-type DA neurons. Here we describe an efficient differentiation and sorting strategy for DA neurons from both human ES/iPS cells and non-human primate iPSCs. The use of non-human primate iPSCs for neuronal differentiation and autologous transplantation is important for preclinical evaluation of safety and efficacy of stem cell-derived DA neurons. The aim of this study was to improve the safety of human- and non-human primate iPSC (PiPSC)-derived DA neurons. According to our results, NCAM(+) /CD29(low) sorting enriched VM DA neurons from pluripotent stem cell-derived neural cell populations. NCAM(+) /CD29(low) DA neurons were positive for FOXA2/TH and EN1/TH and this cell population had increased expression levels of FOXA2, LMX1A, TH, GIRK2, PITX3, EN1, NURR1 mRNA compared to unsorted neural cell populations. PiPSC-derived NCAM(+) /CD29(low) DA neurons were able to restore motor function of 6-hydroxydopamine (6-OHDA) lesioned rats 16 weeks after transplantation. The transplanted sorted cells also integrated in the rodent brain tissue, with robust TH+/hNCAM+ neuritic innervation of the host striatum. One year after autologous transplantation, the primate iPSC-derived neural cells survived in the striatum of one primate without any immunosuppression. These neural cell grafts contained FOXA2/TH-positive neurons in the graft site. This is an important proof of concept for the feasibility and safety of iPSC-derived cell transplantation therapies in the future.
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Affiliation(s)
- Maria Sundberg
- Neuroregeneration Laboratories, Harvard Medical School/McLean Hospital, Belmont, Massachusetts, USA
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Cooper O, Seo H, Andrabi S, Guardia-Laguarta C, Graziotto J, Sundberg M, McLean JR, Carrillo-Reid L, Xie Z, Osborn T, Hargus G, Deleidi M, Lawson T, Bogetofte H, Perez-Torres E, Clark L, Moskowitz C, Mazzulli J, Chen L, Volpicelli-Daley L, Romero N, Jiang H, Uitti RJ, Huang Z, Opala G, Scarffe LA, Dawson VL, Klein C, Feng J, Ross OA, Trojanowski JQ, Lee VMY, Marder K, Surmeier DJ, Wszolek ZK, Przedborski S, Krainc D, Dawson TM, Isacson O. Pharmacological rescue of mitochondrial deficits in iPSC-derived neural cells from patients with familial Parkinson's disease. Sci Transl Med 2012; 4:141ra90. [PMID: 22764206 DOI: 10.1126/scitranslmed.3003985] [Citation(s) in RCA: 387] [Impact Index Per Article: 32.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Parkinson's disease (PD) is a common neurodegenerative disorder caused by genetic and environmental factors that results in degeneration of the nigrostriatal dopaminergic pathway in the brain. We analyzed neural cells generated from induced pluripotent stem cells (iPSCs) derived from PD patients and presymptomatic individuals carrying mutations in the PINK1 (PTEN-induced putative kinase 1) and LRRK2 (leucine-rich repeat kinase 2) genes, and compared them to those of healthy control subjects. We measured several aspects of mitochondrial responses in the iPSC-derived neural cells including production of reactive oxygen species, mitochondrial respiration, proton leakage, and intraneuronal movement of mitochondria. Cellular vulnerability associated with mitochondrial dysfunction in iPSC-derived neural cells from familial PD patients and at-risk individuals could be rescued with coenzyme Q(10), rapamycin, or the LRRK2 kinase inhibitor GW5074. Analysis of mitochondrial responses in iPSC-derived neural cells from PD patients carrying different mutations provides insight into convergence of cellular disease mechanisms between different familial forms of PD and highlights the importance of oxidative stress and mitochondrial dysfunction in this neurodegenerative disease.
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Affiliation(s)
- Oliver Cooper
- Neuroregeneration Institute, McLean Hospital/Harvard Medical School, Belmont, MA 02478, USA
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Deleidi M, Hargus G, Hallett P, Osborn T, Isacson O. Development of histocompatible primate-induced pluripotent stem cells for neural transplantation. Stem Cells 2011; 29:1052-63. [PMID: 21608081 DOI: 10.1002/stem.662] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Immune rejection and risk of tumor formation are perhaps the greatest hurdles in the field of stem cell transplantation. Here, we report the generation of several lines of induced pluripotent stem cells (iPSCs) from cynomolgus macaque (CM) skin fibroblasts carrying specific major histocompatibility complex (MHC) haplotypes. To develop a collection of MHC-matched iPSCs, we genotyped the MHC locus of 25 CMs by microsatellite polymerase chain reaction analysis. Using retroviral infection of dermal skin fibroblasts, we generated several CM-iPSC lines carrying different haplotypes. We characterized the immunological properties of CM-iPSCs and demonstrated that CM-iPSCs can be induced to differentiate in vitro along specific neuronal populations, such as midbrain dopaminergic (DA) neurons. Midbrain-like DA neurons generated from CM-iPSCs integrated into the striatum of a rodent model of Parkinson's disease and promoted behavioral recovery. Importantly, neither tumor formation nor inflammatory reactions were observed in the transplanted animals up to 6 months after transplantation. We believe that the generation and characterization of such histocompatible iPSCs will allow the preclinical validation of safety and efficacy of iPSCs for neurodegenerative diseases and several other human conditions in the field of regenerative medicine.
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Affiliation(s)
- Michela Deleidi
- Center for Neuroregeneration Research, Harvard Medical School/McLean Hospital, Belmont, Massachusetts 02478, USA
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Hedlund E, Karlsson M, Osborn T, Ludwig W, Isacson O. Global gene expression profiling of somatic motor neuron populations with different vulnerability identify molecules and pathways of degeneration and protection. ACTA ACUST UNITED AC 2010; 133:2313-30. [PMID: 20826431 DOI: 10.1093/brain/awq167] [Citation(s) in RCA: 63] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Different somatic motor neuron subpopulations show a differential vulnerability to degeneration in diseases such as amyotrophic lateral sclerosis, spinal muscular atrophy and spinobulbar muscular atrophy. Studies in mutant superoxide dismutase 1 over-expressing amyotrophic lateral sclerosis model mice indicate that initiation of disease is intrinsic to motor neurons, while progression is promoted by astrocytes and microglia. Therefore, analysis of the normal transcriptional profile of motor neurons displaying differential vulnerability to degeneration in motor neuron disease could give important clues to the mechanisms of relative vulnerability. Global gene expression profiling of motor neurons isolated by laser capture microdissection from three anatomical nuclei of the normal rat, oculomotor/trochlear (cranial nerve 3/4), hypoglossal (cranial nerve 12) and lateral motor column of the cervical spinal cord, displaying differential vulnerability to degeneration in motor neuron disorders, identified enriched transcripts for each neuronal subpopulation. There were striking differences in the regulation of genes involved in endoplasmatic reticulum and mitochondrial function, ubiquitination, apoptosis regulation, nitrogen metabolism, calcium regulation, transport, growth and RNA processing; cellular pathways that have been implicated in motor neuron diseases. Confirmation of genes of immediate biological interest identified differential localization of insulin-like growth factor II, guanine deaminase, peripherin, early growth response 1, soluble guanylate cyclase 1A3 and placental growth factor protein. Furthermore, the cranial nerve 3/4-restricted genes insulin-like growth factor II and guanine deaminase protected spinal motor neurons from glutamate-induced toxicity (P < 0.001, ANOVA), indicating that our approach can identify factors that protect or make neurons more susceptible to degeneration.
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Affiliation(s)
- Eva Hedlund
- Center for Neuroregeneration Research, McLean Hospital/Harvard Medical School, Belmont, MA 02478, USA.
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Cooper O, Hargus G, Deleidi M, Blak A, Osborn T, Marlow E, Lee K, Levy A, Perez-Torres E, Yow A, Isacson O. Differentiation of human ES and Parkinson's disease iPS cells into ventral midbrain dopaminergic neurons requires a high activity form of SHH, FGF8a and specific regionalization by retinoic acid. Mol Cell Neurosci 2010; 45:258-66. [PMID: 20603216 DOI: 10.1016/j.mcn.2010.06.017] [Citation(s) in RCA: 164] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2010] [Revised: 06/23/2010] [Accepted: 06/25/2010] [Indexed: 12/16/2022] Open
Abstract
The cardinal motor symptoms of Parkinson's disease (PD) are caused by the vulnerability to dysfunction and degeneration of ventral midbrain (VM) dopaminergic (DA) neurons. A major limitation for experimental studies of current ES/iPS cell differentiation protocols is the lack of VM DA neurons with a stable phenotype as defined by an expression marker code of FOXA2/TH/β-tubulin. Here we demonstrate a combination of three modifications that were required to produce VM DA neurons. Firstly, early and specific exposure to 10(-)(8)M (low dose) retinoic acid improved the regional identity of neural progenitor cells derived from human ES cells, PD or healthy subject-specific iPS cells. Secondly, a high activity form of human sonic hedgehog established a sizeable FOXA2(+) neural progenitor cell population in vitro. Thirdly, early exposure to FGF8a, rather than Fgf8b, and WNT1 was required for robust differentiation of the FOXA2(+) floor plate-like human neural progenitor cells into FOXA2(+) DA neurons. FOXA2(+) DA neurons were also generated when this protocol was adapted to feeder-free conditions. In summary, this new human ES and iPS cell differentiation protocol using FGF8a, WNT1, low dose retinoic acid and a high activity form of SHH can generate human VM DA neurons that are required for relevant new bioassays, drug discovery and cell based therapies for PD.
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Affiliation(s)
- Oliver Cooper
- Neuroregeneration Laboratories, Harvard Medical School/McLean Hospital, NINDS Udall Parkinson's Disease Research Center of Excellence, 115 Mill Street, Belmont, MA 02478, USA.
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Edwards L, Watson M, St. James-Roberts I, Ashley S, Tilney C, Brougham B, Osborn T, Baldus C, Romer G. Adolescent's stress responses and psychological functioning when a parent has early breast cancer. Psychooncology 2008; 17:1039-47. [DOI: 10.1002/pon.1323] [Citation(s) in RCA: 59] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Nakamura F, Osborn T, Hartwig JH, Stossel TP. Mechanism of Filamin A (FLNa) actin filament (F‐actin) crosslinking. FASEB J 2007. [DOI: 10.1096/fasebj.21.6.a993-c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Fumihiko Nakamura
- MedicineBrigham and Women’s Hospital6F One blackfan circleBostonMA02115
| | - Teresia Osborn
- MedicineBrigham and Women’s Hospital6F One blackfan circleBostonMA02115
| | - John H. Hartwig
- MedicineBrigham and Women’s Hospital6F One blackfan circleBostonMA02115
| | - Thomas P. Stossel
- MedicineBrigham and Women’s Hospital6F One blackfan circleBostonMA02115
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Rivers E, Shapiro N, Hollander J, Birkhahn R, Otero R, Osborn T, Milzman D, Moretti E, Nguyen B, Trzeciak S, Gunnerson K. Crit Care 2006; 10:P82. [DOI: 10.1186/cc4429] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Yamazaki H, Osborn T. Correction to “Dissipation estimates for stratified turbulence” by H. Yamazaki and T. Osborn. ACTA ACUST UNITED AC 1993. [DOI: 10.1029/93jc01209] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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