1
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Lim WL, Gaunt JR, Tan JM, Zainolabidin N, Bansal VA, Lye YM, Ch'ng TH. CREB-regulated transcription during glycogen synthesis in astrocytes. Sci Rep 2024; 14:17942. [PMID: 39095513 PMCID: PMC11297295 DOI: 10.1038/s41598-024-67976-w] [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: 01/26/2024] [Accepted: 07/18/2024] [Indexed: 08/04/2024] Open
Abstract
Glycogen storage, conversion and utilization in astrocytes play an important role in brain energy metabolism. The conversion of glycogen to lactate through glycolysis occurs through the coordinated activities of various enzymes and inhibition of this process can impair different brain processes including formation of long-lasting memories. To replenish depleted glycogen stores, astrocytes undergo glycogen synthesis, a cellular process that has been shown to require transcription and translation during specific stimulation paradigms. However, the detail nuclear signaling mechanisms and transcriptional regulation during glycogen synthesis in astrocytes remains to be explored. In this report, we study the molecular mechanisms of vasoactive intestinal peptide (VIP)-induced glycogen synthesis in astrocytes. VIP is a potent neuropeptide that triggers glycogenolysis followed by glycogen synthesis in astrocytes. We show evidence that VIP-induced glycogen synthesis requires CREB-mediated transcription that is calcium dependent and requires conventional Protein Kinase C but not Protein Kinase A. In parallel to CREB activation, we demonstrate that VIP also triggers nuclear accumulation of the CREB coactivator CRTC2 in astrocytic nuclei. Transcriptome profiles of VIP-induced astrocytes identified robust CREB transcription, including a subset of genes linked to glucose and glycogen metabolism. Finally, we demonstrate that VIP-induced glycogen synthesis shares similar as well as distinct molecular signatures with glucose-induced glycogen synthesis, including the requirement of CREB-mediated transcription. Overall, our data demonstrates the importance of CREB-mediated transcription in astrocytes during stimulus-driven glycogenesis.
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Affiliation(s)
- Wei Lee Lim
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore, Clinical Science Building, 11 Mandalay Road, 10-01-01M, Singapore, 308232, Singapore
| | - Jessica Ruth Gaunt
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore, Clinical Science Building, 11 Mandalay Road, 10-01-01M, Singapore, 308232, Singapore
| | - Jia Min Tan
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore, Clinical Science Building, 11 Mandalay Road, 10-01-01M, Singapore, 308232, Singapore
| | - Norliyana Zainolabidin
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore, Clinical Science Building, 11 Mandalay Road, 10-01-01M, Singapore, 308232, Singapore
| | - Vibhavari Aysha Bansal
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore, Clinical Science Building, 11 Mandalay Road, 10-01-01M, Singapore, 308232, Singapore
| | - Yi Ming Lye
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore, Clinical Science Building, 11 Mandalay Road, 10-01-01M, Singapore, 308232, Singapore
| | - Toh Hean Ch'ng
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore, Clinical Science Building, 11 Mandalay Road, 10-01-01M, Singapore, 308232, Singapore.
- School of Biological Science, Nanyang Technological University, Singapore, 636551, Singapore.
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2
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Koenis DS, Evers-van Gogh IJA, van Loenen PB, Zwart W, Kalkhoven E, de Vries CJM. Nuclear receptor Nur77 and Yin-Yang 1 synergistically increase mitochondrial abundance and activity in macrophages. FEBS Lett 2024; 598:1715-1729. [PMID: 38825601 DOI: 10.1002/1873-3468.14942] [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: 04/05/2024] [Revised: 05/07/2024] [Accepted: 05/09/2024] [Indexed: 06/04/2024]
Abstract
Mitochondrial biogenesis requires precise regulation of both mitochondrial-encoded and nuclear-encoded genes. Nuclear receptor Nur77 is known to regulate mitochondrial metabolism in macrophages and skeletal muscle. Here, we compared genome-wide Nur77 binding site and target gene expression in these two cell types, which revealed conserved regulation of mitochondrial genes and enrichment of motifs for the transcription factor Yin-Yang 1 (YY1). We show that Nur77 and YY1 interact, that YY1 increases Nur77 activity, and that their binding sites are co-enriched at mitochondrial ribosomal protein gene loci in macrophages. Nur77 and YY1 co-expression synergistically increases Mrpl1 expression as well as mitochondrial abundance and activity in macrophages but not skeletal muscle. As such, we identify a macrophage-specific Nur77-YY1 interaction that enhances mitochondrial metabolism.
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Affiliation(s)
- Duco S Koenis
- Department of Medical Biochemistry, Amsterdam UMC, Amsterdam Cardiovascular Sciences, University of Amsterdam, Amsterdam, The Netherlands
- Amsterdam Cardiovascular Sciences (ACS), Atherosclerosis & Ischemic Syndromes, Amsterdam UMC, Amsterdam, The Netherlands
- Amsterdam Institute for Infection and Immunity (AII), Inflammatory Diseases, Amsterdam UMC, Amsterdam, The Netherlands
| | - Inkie J A Evers-van Gogh
- Center for Molecular Medicine, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
| | - Pieter B van Loenen
- Department of Medical Biochemistry, Amsterdam UMC, Amsterdam Cardiovascular Sciences, University of Amsterdam, Amsterdam, The Netherlands
- Amsterdam Cardiovascular Sciences (ACS), Atherosclerosis & Ischemic Syndromes, Amsterdam UMC, Amsterdam, The Netherlands
- Amsterdam Institute for Infection and Immunity (AII), Inflammatory Diseases, Amsterdam UMC, Amsterdam, The Netherlands
| | - Wilbert Zwart
- Division of Oncogenomics, Oncode Institute, The Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - Eric Kalkhoven
- Center for Molecular Medicine, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
| | - Carlie J M de Vries
- Department of Medical Biochemistry, Amsterdam UMC, Amsterdam Cardiovascular Sciences, University of Amsterdam, Amsterdam, The Netherlands
- Amsterdam Cardiovascular Sciences (ACS), Atherosclerosis & Ischemic Syndromes, Amsterdam UMC, Amsterdam, The Netherlands
- Amsterdam Institute for Infection and Immunity (AII), Inflammatory Diseases, Amsterdam UMC, Amsterdam, The Netherlands
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3
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Vélez EJ, Schnebert S, Goguet M, Balbuena-Pecino S, Dias K, Beauclair L, Fontagné-Dicharry S, Véron V, Depincé A, Beaumatin F, Herpin A, Seiliez I. Chaperone-mediated autophagy protects against hyperglycemic stress. Autophagy 2024; 20:752-768. [PMID: 37798944 PMCID: PMC11062381 DOI: 10.1080/15548627.2023.2267415] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Accepted: 10/02/2023] [Indexed: 10/07/2023] Open
Abstract
Chaperone-mediated autophagy (CMA) is a major pathway of lysosomal proteolysis critical for cellular homeostasis and metabolism, and whose defects have been associated with several human pathologies. While CMA has been well described in mammals, functional evidence has only recently been documented in fish, opening up new perspectives to tackle this function under a novel angle. Now we propose to explore CMA functions in the rainbow trout (RT, Oncorhynchus mykiss), a fish species recognized as a model organism of glucose intolerance and characterized by the presence of two paralogs of the CMA-limiting factor Lamp2A (lysosomal associated membrane protein 2A). To this end, we validated a fluorescent reporter (KFERQ-PA-mCherry1) previously used to track functional CMA in mammalian cells, in an RT hepatoma-derived cell line (RTH-149). We found that incubation of cells with high-glucose levels (HG, 25 mM) induced translocation of the CMA reporter to lysosomes and/or late endosomes in a KFERQ- and Lamp2A-dependent manner, as well as reduced its half-life compared to the control (5 mM), thus demonstrating increased CMA flux. Furthermore, we observed that activation of CMA upon HG exposure was mediated by generation of mitochondrial reactive oxygen species, and involving the antioxidant transcription factor Nfe2l2/Nrf2 (nfe2 like bZIP transcription factor 2). Finally, we demonstrated that CMA plays an important protective role against HG-induced stress, primarily mediated by one of the two RT Lamp2As. Together, our results provide unequivocal evidence for CMA activity existence in RT and highlight both the role and regulation of CMA during glucose-related metabolic disorders.Abbreviations: AREs: antioxidant response elements; CHC: α-cyano -4-hydroxycinnamic acid; Chr: chromosome; CMA: chaperone-mediated autophagy; CT: control; DMF: dimethyl fumarate; Emi: endosomal microautophagy; HG: high-glucose; HMOX1: heme oxygenase 1; H2O2: hydrogen peroxide; KFERQ: lysine-phenylalanine-glutamate-arginine-glutamine; LAMP1: lysosomal associated membrane protein 1; LAMP2A: lysosomal associated membrane protein 2A; MCC: Manders' correlation coefficient; Manders' correlation coefficient Mo: morpholino oligonucleotide; NAC: N-acetyl cysteine; NFE2L2/NRF2: NFE2 like bZIP transcription factor 2; PA-mCherry: photoactivable mCherry; PCC: Pearson's correlation coefficient; ROS: reactive oxygen species; RT: rainbow trout; siRNAs: small interfering RNAs; SOD: superoxide dismutase; Tsg101: tumor susceptibility 101; TTFA: 2-thenoyltrifluoroacetone; WGD: whole-genome duplication.
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Affiliation(s)
- Emilio J. Vélez
- Université de Pau et des Pays de l‘Adour, E2S UPPA, INRAE, UMR1419 Nutrition Métabolisme et Aquaculture, Saint-Pée-sur-Nivelle, France
| | - Simon Schnebert
- Université de Pau et des Pays de l‘Adour, E2S UPPA, INRAE, UMR1419 Nutrition Métabolisme et Aquaculture, Saint-Pée-sur-Nivelle, France
| | - Maxime Goguet
- Université de Pau et des Pays de l‘Adour, E2S UPPA, INRAE, UMR1419 Nutrition Métabolisme et Aquaculture, Saint-Pée-sur-Nivelle, France
| | - Sara Balbuena-Pecino
- Université de Pau et des Pays de l‘Adour, E2S UPPA, INRAE, UMR1419 Nutrition Métabolisme et Aquaculture, Saint-Pée-sur-Nivelle, France
| | - Karine Dias
- Université de Pau et des Pays de l‘Adour, E2S UPPA, INRAE, UMR1419 Nutrition Métabolisme et Aquaculture, Saint-Pée-sur-Nivelle, France
| | - Linda Beauclair
- Université de Pau et des Pays de l‘Adour, E2S UPPA, INRAE, UMR1419 Nutrition Métabolisme et Aquaculture, Saint-Pée-sur-Nivelle, France
| | - Stéphanie Fontagné-Dicharry
- Université de Pau et des Pays de l‘Adour, E2S UPPA, INRAE, UMR1419 Nutrition Métabolisme et Aquaculture, Saint-Pée-sur-Nivelle, France
| | - Vincent Véron
- Université de Pau et des Pays de l‘Adour, E2S UPPA, INRAE, UMR1419 Nutrition Métabolisme et Aquaculture, Saint-Pée-sur-Nivelle, France
| | - Alexandra Depincé
- INRAE, UR1037 Laboratory of Fish Physiology and Genomics, Campus de Beaulieu, Rennes, France
| | - Florian Beaumatin
- Université de Pau et des Pays de l‘Adour, E2S UPPA, INRAE, UMR1419 Nutrition Métabolisme et Aquaculture, Saint-Pée-sur-Nivelle, France
| | - Amaury Herpin
- INRAE, UR1037 Laboratory of Fish Physiology and Genomics, Campus de Beaulieu, Rennes, France
| | - Iban Seiliez
- Université de Pau et des Pays de l‘Adour, E2S UPPA, INRAE, UMR1419 Nutrition Métabolisme et Aquaculture, Saint-Pée-sur-Nivelle, France
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4
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Pfaller AM, Kaplan L, Carido M, Grassmann F, Díaz-Lezama N, Ghaseminejad F, Wunderlich KA, Glänzer S, Bludau O, Pannicke T, Weber BHF, Koch SF, Bonev B, Hauck SM, Grosche A. The glucocorticoid receptor as a master regulator of the Müller cell response to diabetic conditions in mice. J Neuroinflammation 2024; 21:33. [PMID: 38273366 PMCID: PMC10809506 DOI: 10.1186/s12974-024-03021-x] [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: 09/12/2023] [Accepted: 01/11/2024] [Indexed: 01/27/2024] Open
Abstract
Diabetic retinopathy (DR) is considered a primarily microvascular complication of diabetes. Müller glia cells are at the centre of the retinal neurovascular unit and play a critical role in DR. We therefore investigated Müller cell-specific signalling pathways that are altered in DR to identify novel targets for gene therapy. Using a multi-omics approach on purified Müller cells from diabetic db/db mice, we found the mRNA and protein expression of the glucocorticoid receptor (GR) to be significantly decreased, while its target gene cluster was down-regulated. Further, oPOSSUM TF analysis and ATAC- sequencing identified the GR as a master regulator of Müller cell response to diabetic conditions. Cortisol not only increased GR phosphorylation. It also induced changes in the expression of known GR target genes in retinal explants. Finally, retinal functionality was improved by AAV-mediated overexpression of GR in Müller cells. Our study demonstrates an important role of the glial GR in DR and implies that therapeutic approaches targeting this signalling pathway should be aimed at increasing GR expression rather than the addition of more ligand.
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Affiliation(s)
- Anna M Pfaller
- Department of Physiological Genomics, Biomedical Center-BMC, Ludwig-Maximilians-Universität München, Planegg-Martinsried, Germany
| | - Lew Kaplan
- Department of Physiological Genomics, Biomedical Center-BMC, Ludwig-Maximilians-Universität München, Planegg-Martinsried, Germany
| | - Madalena Carido
- Helmholtz Pioneer Campus, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany
| | - Felix Grassmann
- Institute of Clinical Human Genetics, University Hospital Regensburg, Regensburg, Germany
- Institute for Clinical Research and Systems Medicine, Health and Medical University, Potsdam, Germany
| | - Nundehui Díaz-Lezama
- Department of Physiological Genomics, Biomedical Center-BMC, Ludwig-Maximilians-Universität München, Planegg-Martinsried, Germany
- Department of Pharmacy, Center for Drug Research, Ludwig-Maximilians-Universität München, Munich, Germany
| | - Farhad Ghaseminejad
- Department of Physiological Genomics, Biomedical Center-BMC, Ludwig-Maximilians-Universität München, Planegg-Martinsried, Germany
| | - Kirsten A Wunderlich
- Department of Physiological Genomics, Biomedical Center-BMC, Ludwig-Maximilians-Universität München, Planegg-Martinsried, Germany
- Institute for Molecular Medicine, Health and Medical University, Potsdam, Germany
| | - Sarah Glänzer
- Department of Physiological Genomics, Biomedical Center-BMC, Ludwig-Maximilians-Universität München, Planegg-Martinsried, Germany
| | - Oliver Bludau
- Department of Physiological Genomics, Biomedical Center-BMC, Ludwig-Maximilians-Universität München, Planegg-Martinsried, Germany
| | - Thomas Pannicke
- Paul Flechsig Institute for Brain Research, University of Leipzig, Leipzig, Germany
| | - Bernhard H F Weber
- Institute of Clinical Human Genetics, University Hospital Regensburg, Regensburg, Germany
- Institute of Human Genetics, University Regensburg, Regensburg, Germany
| | - Susanne F Koch
- Department of Physiological Genomics, Biomedical Center-BMC, Ludwig-Maximilians-Universität München, Planegg-Martinsried, Germany
- Department of Pharmacy, Center for Drug Research, Ludwig-Maximilians-Universität München, Munich, Germany
| | - Boyan Bonev
- Department of Physiological Genomics, Biomedical Center-BMC, Ludwig-Maximilians-Universität München, Planegg-Martinsried, Germany
- Helmholtz Pioneer Campus, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany
| | - Stefanie M Hauck
- Metabolomics and Proteomics Core, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany
| | - Antje Grosche
- Department of Physiological Genomics, Biomedical Center-BMC, Ludwig-Maximilians-Universität München, Planegg-Martinsried, Germany.
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5
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Silva-García CG, Láscarez-Lagunas LI, Papsdorf K, Heintz C, Prabhakar A, Morrow CS, Pajuelo Torres L, Sharma A, Liu J, Colaiácovo MP, Brunet A, Mair WB. The CRTC-1 transcriptional domain is required for COMPASS complex-mediated longevity in C. elegans. NATURE AGING 2023; 3:1358-1371. [PMID: 37946042 PMCID: PMC10645585 DOI: 10.1038/s43587-023-00517-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Accepted: 09/28/2023] [Indexed: 11/12/2023]
Abstract
Loss of function during aging is accompanied by transcriptional drift, altering gene expression and contributing to a variety of age-related diseases. CREB-regulated transcriptional coactivators (CRTCs) have emerged as key regulators of gene expression that might be targeted to promote longevity. Here we define the role of the Caenorhabditis elegans CRTC-1 in the epigenetic regulation of longevity. Endogenous CRTC-1 binds chromatin factors, including components of the COMPASS complex, which trimethylates lysine 4 on histone H3 (H3K4me3). CRISPR editing of endogenous CRTC-1 reveals that the CREB-binding domain in neurons is specifically required for H3K4me3-dependent longevity. However, this effect is independent of CREB but instead acts via the transcription factor AP-1. Strikingly, CRTC-1 also mediates global histone acetylation levels, and this acetylation is essential for H3K4me3-dependent longevity. Indeed, overexpression of an acetyltransferase enzyme is sufficient to promote longevity in wild-type worms. CRTCs, therefore, link energetics to longevity by critically fine-tuning histone acetylation and methylation to promote healthy aging.
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Affiliation(s)
- Carlos G Silva-García
- Department of Molecular Metabolism, Harvard T. H. Chan School of Public Health, Harvard University, Boston, MA, USA
- Center on the Biology of Aging, Brown University, Providence, RI, USA
- Department of Molecular Biology, Cell Biology, and Biochemistry, Brown University, Providence, RI, USA
| | | | | | - Caroline Heintz
- Department of Molecular Metabolism, Harvard T. H. Chan School of Public Health, Harvard University, Boston, MA, USA
| | - Aditi Prabhakar
- Department of Molecular Metabolism, Harvard T. H. Chan School of Public Health, Harvard University, Boston, MA, USA
| | - Christopher S Morrow
- Department of Molecular Metabolism, Harvard T. H. Chan School of Public Health, Harvard University, Boston, MA, USA
| | - Lourdes Pajuelo Torres
- Department of Molecular Metabolism, Harvard T. H. Chan School of Public Health, Harvard University, Boston, MA, USA
| | - Arpit Sharma
- Department of Molecular Metabolism, Harvard T. H. Chan School of Public Health, Harvard University, Boston, MA, USA
| | - Jihe Liu
- Harvard Chan Bioinformatics Core, Harvard T. H. Chan School of Public Health, Harvard University, Boston, MA, USA
| | - Monica P Colaiácovo
- Department of Genetics, Blavatnik Institute, Harvard Medical School, Boston, MA, USA
| | - Anne Brunet
- Department of Genetics, Stanford University, Stanford, CA, USA
- Glenn Center for the Biology of Aging, Stanford University, Stanford, CA, USA
| | - William B Mair
- Department of Molecular Metabolism, Harvard T. H. Chan School of Public Health, Harvard University, Boston, MA, USA.
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6
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De Silva NS, Siewiera J, Alkhoury C, Nader GPF, Nadalin F, de Azevedo K, Couty M, Izquierdo HM, Bhargava A, Conrad C, Maurin M, Antoniadou K, Fouillade C, Londono-Vallejo A, Behrendt R, Bertotti K, Serdjebi C, Lanthiez F, Gallwitz L, Saftig P, Herrero-Fernández B, Saez A, González-Granado JM, van Niel G, Boissonnas A, Piel M, Manel N. Nuclear envelope disruption triggers hallmarks of aging in lung alveolar macrophages. NATURE AGING 2023; 3:1251-1268. [PMID: 37723209 DOI: 10.1038/s43587-023-00488-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2022] [Accepted: 08/16/2023] [Indexed: 09/20/2023]
Abstract
Aging is characterized by gradual immune dysfunction and increased disease risk. Genomic instability is considered central to the aging process, but the underlying mechanisms of DNA damage are insufficiently defined. Cells in confined environments experience forces applied to their nucleus, leading to transient nuclear envelope rupture (NER) and DNA damage. Here, we show that Lamin A/C protects lung alveolar macrophages (AMs) from NER and hallmarks of aging. AMs move within constricted spaces in the lung. Immune-specific ablation of lamin A/C results in selective depletion of AMs and heightened susceptibility to influenza virus-induced pathogenesis and lung cancer growth. Lamin A/C-deficient AMs that persist display constitutive NER marks, DNA damage and p53-dependent senescence. AMs from aged wild-type and from lamin A/C-deficient mice share a lysosomal signature comprising CD63. CD63 is required to limit damaged DNA in macrophages. We propose that NER-induced genomic instability represents a mechanism of aging in AMs.
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Affiliation(s)
| | - Johan Siewiera
- Institut Curie, PSL Research University, INSERM U932, Paris, France
| | - Chantal Alkhoury
- Institut Curie, PSL Research University, INSERM U932, Paris, France
| | | | | | - Kevin de Azevedo
- Institut Curie, PSL Research University, INSERM U932, Paris, France
| | - Mickaël Couty
- Université Paris Cité, Institute of Psychiatry and Neuroscience of Paris (IPNP), INSERM U1266, Team van Niel, Paris, France
| | | | - Anvita Bhargava
- Institut Curie, PSL Research University, INSERM U932, Paris, France
| | - Cécile Conrad
- Institut Curie, PSL Research University, INSERM U932, Paris, France
| | - Mathieu Maurin
- Institut Curie, PSL Research University, INSERM U932, Paris, France
| | | | - Charles Fouillade
- Institut Curie, PSL Research University, Université Paris-Saclay, CNRS, INSERM, UMR3347, U1021, Orsay, France
| | | | - Rayk Behrendt
- Institute for Clinical Chemistry and Clinical Pharmacology, University Hospital Bonn, Bonn, Germany
| | | | | | - François Lanthiez
- Sorbonne Université, Inserm, CNRS, Centre d'Immunologie et des Maladies Infectieuses, Cimi-Paris, Paris, France
| | - Lisa Gallwitz
- Biochemical Institute, Christian-Albrechts-University Kiel, Kiel, Germany
| | - Paul Saftig
- Biochemical Institute, Christian-Albrechts-University Kiel, Kiel, Germany
| | - Beatriz Herrero-Fernández
- Departamento de Fisiología, Facultad de Medicina, Universidad Autónoma de Madrid (UAM), Madrid, Spain
| | - Angela Saez
- Facultad de Ciencias Experimentales, Universidad Francisco de Vitoria (UFV), Pozuelo de Alarcón, Spain
| | - José María González-Granado
- LamImSys Lab, Instituto de Investigación Sanitaria Hospital 12 de Octubre (imas12). Department of Immunology, Ophthalmology and ENT, School of Medicine, Universidad Complutense de Madrid. CIBER de Enfermedades Cardiovasculares (CIBERCV), Madrid, Spain
| | - Guillaume van Niel
- Université Paris Cité, Institute of Psychiatry and Neuroscience of Paris (IPNP), INSERM U1266, Team van Niel, Paris, France
| | - Alexandre Boissonnas
- Sorbonne Université, Inserm, CNRS, Centre d'Immunologie et des Maladies Infectieuses, Cimi-Paris, Paris, France
| | - Matthieu Piel
- Institut Curie, PSL Research University, CNRS UMR144, Paris, France
| | - Nicolas Manel
- Institut Curie, PSL Research University, INSERM U932, Paris, France.
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7
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Martínez-Ramos S, Rafael-Vidal C, Malvar-Fernández B, Rodriguez-Trillo A, Veale D, Fearon U, Conde C, Conde-Aranda J, Radstake TRDJ, Pego-Reigosa JM, Reedquist KA, García S. HOXA5 is a key regulator of class 3 semaphorins expression in the synovium of rheumatoid arthritis patients. Rheumatology (Oxford) 2023; 62:2621-2630. [PMID: 36398888 PMCID: PMC10321103 DOI: 10.1093/rheumatology/keac654] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Accepted: 11/08/2022] [Indexed: 07/20/2023] Open
Abstract
OBJECTIVE Class 3 semaphorins are reduced in the synovial tissue of RA patients and these proteins are involved in the pathogenesis of the disease. The aim of this study was to identify the transcription factors involved in the expression of class 3 semaphorins in the synovium of RA patients. METHODS Protein and mRNA expression in synovial tissue from RA and individuals at risk (IAR) patients, human umbilical vein endothelial cells (HUVEC) and RA fibroblast-like synoviocytes (FLS) was determined by ELISA, immunoblotting and quantitative PCR. TCF-3, EBF-1 and HOXA5 expression was knocked down using siRNA. Cell viability, migration and invasion were determined using MTT, calcein, wound closure and invasion assays, respectively. RESULTS mRNA expression of all class 3 semaphorins was significantly lower in the synovium of RA compared with IAR patients. In silico analysis suggested TCF-3, EBF-1 and HOXA5 as transcription factors involved in the expression of these semaphorins. TCF-3, EBF-1 and HOXA5 silencing significantly reduced the expression of several class 3 semaphorin members in FLS and HUVEC. Importantly, HOXA5 expression was significantly reduced in the synovium of RA compared with IAR patients and was negatively correlated with clinical disease parameters. Additionally, TNF-α down-regulated the HOXA5 expression in FLS and HUVEC. Finally, HOXA5 silencing enhanced the migratory and invasive capacities of FLS and the viability of HUVEC. CONCLUSION HOXA5 expression is reduced during the progression of RA and could be a novel therapeutic strategy for modulating the hyperplasia of the synovium, through the regulation of class 3 semaphorins expression.
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Affiliation(s)
- Sara Martínez-Ramos
- Rheumatology & Immuno-mediated Diseases Research Group (IRIDIS), Galicia Sur Health Research Institute (IIS Galicia Sur), SERGAS-UVIGO, Vigo, Spain
- Rheumatology Department, University Hospital Complex of Vigo, Vigo, Spain
| | - Carlos Rafael-Vidal
- Rheumatology & Immuno-mediated Diseases Research Group (IRIDIS), Galicia Sur Health Research Institute (IIS Galicia Sur), SERGAS-UVIGO, Vigo, Spain
- Rheumatology Department, University Hospital Complex of Vigo, Vigo, Spain
| | - Beatriz Malvar-Fernández
- Rheumatology & Immuno-mediated Diseases Research Group (IRIDIS), Galicia Sur Health Research Institute (IIS Galicia Sur), SERGAS-UVIGO, Vigo, Spain
- Rheumatology Department, University Hospital Complex of Vigo, Vigo, Spain
| | - Angela Rodriguez-Trillo
- Laboratorio de Reumatología Experimental y Observacional, Servicio de Reumatología, Instituto de Investigación Sanitaria de Santiago (IDIS), Hospital Clínico, Universitario de Santiago de Compostela (CHUS), Servizo Galego de Saude (SERGAS), Santiago de Compostela, Spain
| | - Douglas Veale
- Rheumatology EULAR Centre of Excellence, St Vincent's University Hospital and University College Dublin, Dublin, Ireland
| | - Ursula Fearon
- Rheumatology EULAR Centre of Excellence, St Vincent's University Hospital and University College Dublin, Dublin, Ireland
- Department of Molecular Rheumatology, Trinity Biomedical Science Institute, Trinity College Dublin, Dublin, Ireland
| | - Carmen Conde
- Laboratorio de Reumatología Experimental y Observacional, Servicio de Reumatología, Instituto de Investigación Sanitaria de Santiago (IDIS), Hospital Clínico, Universitario de Santiago de Compostela (CHUS), Servizo Galego de Saude (SERGAS), Santiago de Compostela, Spain
| | - Javier Conde-Aranda
- Molecular and Cellular Gastroenterology, Health Research Institute of Santiago de Compostela (IDIS), Santiago de Compostela, Spain
| | - Timothy R D J Radstake
- Department of Rheumatology and Clinical Immunology, University Medical Center Utrecht, University of Utrecht, Utrecht, The Netherlands
- Center for Translational Immunology, University Medical Center Utrecht, University of Utrecht, Utrecht, The Netherlands
| | - Jose María Pego-Reigosa
- Rheumatology & Immuno-mediated Diseases Research Group (IRIDIS), Galicia Sur Health Research Institute (IIS Galicia Sur), SERGAS-UVIGO, Vigo, Spain
- Rheumatology Department, University Hospital Complex of Vigo, Vigo, Spain
| | - Kris A Reedquist
- Department of Rheumatology and Clinical Immunology, University Medical Center Utrecht, University of Utrecht, Utrecht, The Netherlands
- Center for Translational Immunology, University Medical Center Utrecht, University of Utrecht, Utrecht, The Netherlands
| | - Samuel García
- Correspondence to: Samuel García, Rheumatology & Immune-mediated Diseases (IRIDIS) Group, Galicia Sur Health Research Institute (IIS Galicia Sur), Hospital Álvaro Cunqueiro, Estrada Clara Campoamor No. 341, Beade, 36312 Vigo (Pontevedra), Spain. E-mail:
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8
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Tognon M, Giugno R, Pinello L. A survey on algorithms to characterize transcription factor binding sites. Brief Bioinform 2023; 24:bbad156. [PMID: 37099664 PMCID: PMC10422928 DOI: 10.1093/bib/bbad156] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Revised: 03/27/2023] [Accepted: 04/01/2023] [Indexed: 04/28/2023] Open
Abstract
Transcription factors (TFs) are key regulatory proteins that control the transcriptional rate of cells by binding short DNA sequences called transcription factor binding sites (TFBS) or motifs. Identifying and characterizing TFBS is fundamental to understanding the regulatory mechanisms governing the transcriptional state of cells. During the last decades, several experimental methods have been developed to recover DNA sequences containing TFBS. In parallel, computational methods have been proposed to discover and identify TFBS motifs based on these DNA sequences. This is one of the most widely investigated problems in bioinformatics and is referred to as the motif discovery problem. In this manuscript, we review classical and novel experimental and computational methods developed to discover and characterize TFBS motifs in DNA sequences, highlighting their advantages and drawbacks. We also discuss open challenges and future perspectives that could fill the remaining gaps in the field.
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Affiliation(s)
- Manuel Tognon
- Computer Science Department, University of Verona, Verona, Italy
- Molecular Pathology Unit, Center for Computational and Integrative Biology and Center for Cancer Research, Massachusetts General Hospital, Charlestown, Massachusetts, United States of America
- Broad Institute of MIT and Harvard, Cambridge, Massachusetts, United States of America
| | - Rosalba Giugno
- Computer Science Department, University of Verona, Verona, Italy
| | - Luca Pinello
- Molecular Pathology Unit, Center for Computational and Integrative Biology and Center for Cancer Research, Massachusetts General Hospital, Charlestown, Massachusetts, United States of America
- Broad Institute of MIT and Harvard, Cambridge, Massachusetts, United States of America
- Department of Pathology, Harvard Medical School, Boston, Massachusetts, United States of America
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9
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Hamba Y, Kamatani T, Miya F, Boroevich KA, Tsunoda T. Topologically associating domain underlies tissue specific expression of long intergenic non-coding RNAs. iScience 2023; 26:106640. [PMID: 37250307 PMCID: PMC10214471 DOI: 10.1016/j.isci.2023.106640] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Revised: 12/15/2022] [Accepted: 04/05/2023] [Indexed: 05/31/2023] Open
Abstract
Accumulating evidence indicates that long intergenic non-coding RNAs (lincRNAs) show more tissue-specific expression patterns than protein-coding genes (PCGs). However, although lincRNAs are subject to canonical transcriptional regulation like PCGs, the molecular basis for the specificity of their expression patterns remains unclear. Here, using expression data and coordinates of topologically associating domains (TADs) in human tissues, we show that lincRNA loci are significantly enriched in the more internal region of TADs compared to PCGs and that lincRNAs within TADs have higher tissue specificity than those outside TADs. Based on these, we propose an analytical framework to interpret transcriptional status using lincRNA as an indicator. We applied it to hypertrophic cardiomyopathy data and found disease-specific transcriptional regulation: ectopic expression of keratin at the TAD level and derepression of myocyte differentiation-related genes by E2F1 with down-regulation of LINC00881. Our results provide understanding of the function and regulation of lincRNAs according to genomic structure.
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Affiliation(s)
- Yu Hamba
- Laboratory for Medical Science Mathematics, Department of Biological Sciences, Graduate School of Science, The University of Tokyo, Tokyo 113-0033, Japan
- Laboratory for Medical Science Mathematics, RIKEN Center for Integrative Medical Sciences, Yokohama 230-0045, Japan
| | - Takashi Kamatani
- Laboratory for Medical Science Mathematics, Department of Biological Sciences, Graduate School of Science, The University of Tokyo, Tokyo 113-0033, Japan
- Department of AI Technology Development, M&D Data Science Center, Tokyo Medical and Dental University, Tokyo 101-0062, Japan
- Division of Precision Cancer Medicine, Tokyo Medical and Dental University Hospital, Tokyo 113-8519, Japan
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo 160-8582, Japan
| | - Fuyuki Miya
- Center for Medical Genetics, Keio University School of Medicine, Tokyo 160-8582, Japan
| | - Keith A. Boroevich
- Laboratory for Medical Science Mathematics, RIKEN Center for Integrative Medical Sciences, Yokohama 230-0045, Japan
| | - Tatsuhiko Tsunoda
- Laboratory for Medical Science Mathematics, Department of Biological Sciences, Graduate School of Science, The University of Tokyo, Tokyo 113-0033, Japan
- Laboratory for Medical Science Mathematics, RIKEN Center for Integrative Medical Sciences, Yokohama 230-0045, Japan
- Department of Computational Biology and Medical Sciences, Graduate School of Frontier Sciences, The University of Tokyo, Chiba 277-8562, Japan
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10
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Rolver MG, Holland LKK, Ponniah M, Prasad NS, Yao J, Schnipper J, Kramer S, Elingaard‐Larsen L, Pedraz‐Cuesta E, Liu B, Pardo LA, Maeda K, Sandelin A, Pedersen SF. Chronic acidosis rewires cancer cell metabolism through PPARα signaling. Int J Cancer 2023; 152:1668-1684. [PMID: 36533672 PMCID: PMC10108231 DOI: 10.1002/ijc.34404] [Citation(s) in RCA: 19] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2022] [Revised: 11/25/2022] [Accepted: 12/06/2022] [Indexed: 12/23/2022]
Abstract
The mechanisms linking tumor microenvironment acidosis to disease progression are not understood. Here, we used mammary, pancreatic, and colon cancer cells to show that adaptation to growth at an extracellular pH (pHe ) mimicking acidic tumor niches is associated with upregulated net acid extrusion capacity and elevated intracellular pH at physiological pHe , but not at acidic pHe . Using metabolic profiling, shotgun lipidomics, imaging and biochemical analyses, we show that the acid adaptation-induced phenotype is characterized by a shift toward oxidative metabolism, increased lipid droplet-, triacylglycerol-, peroxisome content and mitochondrial hyperfusion. Peroxisome proliferator-activated receptor-α (PPARA, PPARα) expression and activity are upregulated, at least in part by increased fatty acid uptake. PPARα upregulates genes driving increased mitochondrial and peroxisomal mass and β-oxidation capacity, including mitochondrial lipid import proteins CPT1A, CPT2 and SLC25A20, electron transport chain components, peroxisomal proteins PEX11A and ACOX1, and thioredoxin-interacting protein (TXNIP), a negative regulator of glycolysis. This endows acid-adapted cancer cells with increased capacity for utilizing fatty acids for metabolic needs, while limiting glycolysis. As a consequence, the acid-adapted cells exhibit increased sensitivity to PPARα inhibition. We conclude that PPARα is a key upstream regulator of metabolic changes favoring cancer cell survival in acidic tumor niches.
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Affiliation(s)
- Michala G. Rolver
- Section for Cell Biology and Physiology, Department of BiologyUniversity of CopenhagenCopenhagenDenmark
| | - Lya K. K. Holland
- Cell Death and Metabolism, Center for Autophagy, Recycling and Disease, Danish Cancer Society Research CenterCopenhagenDenmark
| | - Muthulakshmi Ponniah
- Section for Cell Biology and Physiology, Department of BiologyUniversity of CopenhagenCopenhagenDenmark
| | - Nanditha S. Prasad
- Section for Cell Biology and Physiology, Department of BiologyUniversity of CopenhagenCopenhagenDenmark
| | - Jiayi Yao
- The Bioinformatics Center, Department of BiologyUniversity of CopenhagenCopenhagenDenmark
- Biotech Research and Innovation Center, University of CopenhagenCopenhagenDenmark
| | - Julie Schnipper
- Laboratory of Cellular and Molecular Physiology, University of Picardie Jules VerneAmiensFrance
| | - Signe Kramer
- Section for Cell Biology and Physiology, Department of BiologyUniversity of CopenhagenCopenhagenDenmark
| | | | - Elena Pedraz‐Cuesta
- Section for Cell Biology and Physiology, Department of BiologyUniversity of CopenhagenCopenhagenDenmark
| | - Bin Liu
- Cell Death and Metabolism, Center for Autophagy, Recycling and Disease, Danish Cancer Society Research CenterCopenhagenDenmark
| | - Luis A. Pardo
- Oncophysiology Group, Max‐Planck‐Institute for Multidisciplinary SciencesGöttingenGermany
| | - Kenji Maeda
- Cell Death and Metabolism, Center for Autophagy, Recycling and Disease, Danish Cancer Society Research CenterCopenhagenDenmark
| | - Albin Sandelin
- The Bioinformatics Center, Department of BiologyUniversity of CopenhagenCopenhagenDenmark
- Biotech Research and Innovation Center, University of CopenhagenCopenhagenDenmark
| | - Stine Falsig Pedersen
- Section for Cell Biology and Physiology, Department of BiologyUniversity of CopenhagenCopenhagenDenmark
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11
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Pruunsild P, Bengtson CP, Loss I, Lohrer B, Bading H. Expression of the primate-specific LINC00473 RNA in mouse neurons promotes excitability and CREB-regulated transcription. J Biol Chem 2023; 299:104671. [PMID: 37019214 DOI: 10.1016/j.jbc.2023.104671] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2022] [Revised: 03/27/2023] [Accepted: 03/30/2023] [Indexed: 04/05/2023] Open
Abstract
The LINC00473 (Lnc473) gene has previously been shown to be associated with cancer and psychiatric disorders. Its expression is elevated in several types of tumors and decreased in the brains of patients diagnosed with schizophrenia or major depression. In neurons, Lnc473 transcription is strongly responsive to synaptic activity, suggesting a role in adaptive, plasticity-related mechanisms. However, the function of Lnc473 is largely unknown. Here, using a recombinant adeno-associated viral vector, we introduced a primate-specific human Lnc473 RNA into mouse primary neurons. We show that this resulted in a transcriptomic shift comprising downregulation of epilepsy-associated genes and a rise in cAMP response element binding protein (CREB) activity, which was driven by augmented CREB-regulated transcription coactivator 1 (CRTC1) nuclear localization. Moreover, we demonstrate that ectopic Lnc473 expression increased neuronal excitability as well as network excitability. These findings suggest that primates may possess a lineage-specific activity-dependent modulator of CREB-regulated neuronal excitability.
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12
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Silva-Llanes I, Shin CH, Jiménez-Villegas J, Gorospe M, Lastres-Becker I. The Transcription Factor NRF2 Has Epigenetic Regulatory Functions Modulating HDACs, DNMTs, and miRNA Biogenesis. Antioxidants (Basel) 2023; 12:641. [PMID: 36978889 PMCID: PMC10045347 DOI: 10.3390/antiox12030641] [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: 02/14/2023] [Revised: 02/27/2023] [Accepted: 03/02/2023] [Indexed: 03/08/2023] Open
Abstract
The epigenetic regulation of gene expression is a complex and tightly regulated process that defines cellular identity and is associated with health and disease processes. Oxidative stress is capable of inducing epigenetic modifications. The transcription factor NRF2 (nuclear factor erythroid-derived 2-like 2) is a master regulator of cellular homeostasis, regulating genes bearing antioxidant response elements (AREs) in their promoters. Here, we report the identification of ARE sequences in the promoter regions of genes encoding several epigenetic regulatory factors, such as histone deacetylases (HDACs), DNA methyltransferases (DNMTs), and proteins involved in microRNA biogenesis. In this research, we study this possibility by integrating bioinformatic, genetic, pharmacological, and molecular approaches. We found ARE sequences in the promoter regions of genes encoding several HDACs, DNMTs, and proteins involved in miRNA biogenesis. We confirmed that NRF2 regulates the production of these genes by studying NRF2-deficient cells and cells treated with dimethyl fumarate (DMF), an inducer of the NRF2 signaling pathway. In addition, we found that NRF2 could be involved in the target RNA-dependent microRNA degradation (TDMD) of miR-155-5p through its interaction with Nfe2l2 mRNA. Our data indicate that NRF2 has an epigenetic regulatory function, complementing its traditional function and expanding the regulatory dimensions that should be considered when developing NRF2-centered therapeutic strategies.
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Affiliation(s)
- Ignacio Silva-Llanes
- Instituto de Investigaciones Biomédicas “Alberto Sols” UAM-CSIC, Arturo Duperier, 4, 28029 Madrid, Spain
- Instituto de Investigación Sanitaria La Paz (IdiPaz), 28046 Madrid, Spain
| | - Chang Hoon Shin
- Laboratory of Genetics and Genomics, National Institute on Aging Intramural Research Program, National Institutes of Health, Baltimore, MD 21224, USA
| | - José Jiménez-Villegas
- Instituto de Investigaciones Biomédicas “Alberto Sols” UAM-CSIC, Arturo Duperier, 4, 28029 Madrid, Spain
- Instituto de Investigación Sanitaria La Paz (IdiPaz), 28046 Madrid, Spain
- Department of Biochemistry, School of Medicine, Universidad Autónoma de Madrid, 28029 Madrid, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Neurodegenerativas (CIBERNED), Instituto de Salud Carlos III, 28031 Madrid, Spain
| | - Myriam Gorospe
- Laboratory of Genetics and Genomics, National Institute on Aging Intramural Research Program, National Institutes of Health, Baltimore, MD 21224, USA
| | - Isabel Lastres-Becker
- Instituto de Investigaciones Biomédicas “Alberto Sols” UAM-CSIC, Arturo Duperier, 4, 28029 Madrid, Spain
- Instituto de Investigación Sanitaria La Paz (IdiPaz), 28046 Madrid, Spain
- Department of Biochemistry, School of Medicine, Universidad Autónoma de Madrid, 28029 Madrid, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Neurodegenerativas (CIBERNED), Instituto de Salud Carlos III, 28031 Madrid, Spain
- Institute Teófilo Hernando for Drug Discovery, Universidad Autónoma de Madrid, 28029 Madrid, Spain
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13
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Bak ST, Harvald EB, Ellman DG, Mathiesen SB, Chen T, Fang S, Andersen KS, Fenger CD, Burton M, Thomassen M, Andersen DC. Ploidy-stratified single cardiomyocyte transcriptomics map Zinc Finger E-Box Binding Homeobox 1 to underly cardiomyocyte proliferation before birth. Basic Res Cardiol 2023; 118:8. [PMID: 36862248 PMCID: PMC9981540 DOI: 10.1007/s00395-023-00979-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Revised: 12/31/2022] [Accepted: 01/21/2023] [Indexed: 03/03/2023]
Abstract
Whereas cardiomyocytes (CMs) in the fetal heart divide, postnatal CMs fail to undergo karyokinesis and/or cytokinesis and therefore become polyploid or binucleated, a key process in terminal CM differentiation. This switch from a diploid proliferative CM to a terminally differentiated polyploid CM remains an enigma and seems an obstacle for heart regeneration. Here, we set out to identify the transcriptional landscape of CMs around birth using single cell RNA sequencing (scRNA-seq) to predict transcription factors (TFs) involved in CM proliferation and terminal differentiation. To this end, we established an approach combining fluorescence activated cell sorting (FACS) with scRNA-seq of fixed CMs from developing (E16.5, P1, and P5) mouse hearts, and generated high-resolution single-cell transcriptomic maps of in vivo diploid and tetraploid CMs, increasing the CM resolution. We identified TF-networks regulating the G2/M phases of developing CMs around birth. ZEB1 (Zinc Finger E-Box Binding Homeobox 1), a hereto unknown TF in CM cell cycling, was found to regulate the highest number of cell cycle genes in cycling CMs at E16.5 but was downregulated around birth. CM ZEB1-knockdown reduced proliferation of E16.5 CMs, while ZEB1 overexpression at P0 after birth resulted in CM endoreplication. These data thus provide a ploidy stratified transcriptomic map of developing CMs and bring new insight to CM proliferation and endoreplication identifying ZEB1 as a key player in these processes.
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Affiliation(s)
- Sara Thornby Bak
- Andersen Group, Department of Clinical Biochemistry, Odense University Hospital, Odense, Denmark
- Clinical Institute, University of Southern Denmark, Odense, Denmark
| | - Eva Bang Harvald
- Andersen Group, Department of Clinical Biochemistry, Odense University Hospital, Odense, Denmark
- Clinical Institute, University of Southern Denmark, Odense, Denmark
| | - Ditte Gry Ellman
- Andersen Group, Department of Clinical Biochemistry, Odense University Hospital, Odense, Denmark
- Clinical Institute, University of Southern Denmark, Odense, Denmark
| | - Sabrina Bech Mathiesen
- Andersen Group, Department of Clinical Biochemistry, Odense University Hospital, Odense, Denmark
- Clinical Institute, University of Southern Denmark, Odense, Denmark
| | - Ting Chen
- Andersen Group, Department of Clinical Biochemistry, Odense University Hospital, Odense, Denmark
- Clinical Institute, University of Southern Denmark, Odense, Denmark
| | - Shu Fang
- Andersen Group, Department of Clinical Biochemistry, Odense University Hospital, Odense, Denmark
- Clinical Institute, University of Southern Denmark, Odense, Denmark
| | - Kristian Skriver Andersen
- Andersen Group, Department of Clinical Biochemistry, Odense University Hospital, Odense, Denmark
- Clinical Institute, University of Southern Denmark, Odense, Denmark
| | | | - Mark Burton
- Clinical Institute, University of Southern Denmark, Odense, Denmark
- Department of Clinical Genetics, Odense University Hospital, Odense, Denmark
| | - Mads Thomassen
- Clinical Institute, University of Southern Denmark, Odense, Denmark
- Department of Clinical Genetics, Odense University Hospital, Odense, Denmark
| | - Ditte Caroline Andersen
- Andersen Group, Department of Clinical Biochemistry, Odense University Hospital, Odense, Denmark.
- Clinical Institute, University of Southern Denmark, Odense, Denmark.
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14
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Caratti G, Desgeorges T, Juban G, Stifel U, Fessard A, Koenen M, Caratti B, Théret M, Skurk C, Chazaud B, Tuckermann JP, Mounier R. Macrophagic AMPKα1 orchestrates regenerative inflammation induced by glucocorticoids. EMBO Rep 2023; 24:e55363. [PMID: 36520372 PMCID: PMC9900347 DOI: 10.15252/embr.202255363] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2022] [Revised: 11/28/2022] [Accepted: 11/29/2022] [Indexed: 12/23/2022] Open
Abstract
Macrophages are key cells after tissue damage since they mediate both acute inflammatory phase and regenerative inflammation by shifting from pro-inflammatory to restorative cells. Glucocorticoids (GCs) are the most potent anti-inflammatory hormone in clinical use, still their actions on macrophages are not fully understood. We show that the metabolic sensor AMP-activated protein kinase (AMPK) is required for GCs to induce restorative macrophages. GC Dexamethasone activates AMPK in macrophages and GC receptor (GR) phosphorylation is decreased in AMPK-deficient macrophages. Loss of AMPK in macrophages abrogates the GC-induced acquisition of their repair phenotype and impairs GC-induced resolution of inflammation in vivo during post-injury muscle regeneration and acute lung injury. Mechanistically, two categories of genes are impacted by GC treatment in macrophages. Firstly, canonical cytokine regulation by GCs is not affected by AMPK loss. Secondly, AMPK-dependent GC-induced genes required for the phenotypic transition of macrophages are co-regulated by the transcription factor FOXO3, an AMPK substrate. Thus, beyond cytokine regulation, GR requires AMPK-FOXO3 for immunomodulatory actions in macrophages, linking their metabolic status to transcriptional control in regenerative inflammation.
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Affiliation(s)
- Giorgio Caratti
- Institute of Comparative Molecular EndocrinologyUniversität UlmUlmGermany
| | - Thibaut Desgeorges
- Institut NeuroMyoGène, Université Claude Bernard Lyon 1, CNRS UMR 5310, INSERM U1217Université de LyonLyonFrance
| | - Gaëtan Juban
- Institut NeuroMyoGène, Université Claude Bernard Lyon 1, CNRS UMR 5310, INSERM U1217Université de LyonLyonFrance
| | - Ulrich Stifel
- Institute of Comparative Molecular EndocrinologyUniversität UlmUlmGermany
| | - Aurélie Fessard
- Institut NeuroMyoGène, Université Claude Bernard Lyon 1, CNRS UMR 5310, INSERM U1217Université de LyonLyonFrance
| | - Mascha Koenen
- Institute of Comparative Molecular EndocrinologyUniversität UlmUlmGermany
- Present address:
Laboratory of Molecular MetabolismThe Rockefeller UniversityNew YorkNYUSA
| | - Bozhena Caratti
- Institute of Comparative Molecular EndocrinologyUniversität UlmUlmGermany
| | - Marine Théret
- Institut NeuroMyoGène, Université Claude Bernard Lyon 1, CNRS UMR 5310, INSERM U1217Université de LyonLyonFrance
- Present address:
Department of Medical GeneticsSchool of Biomedical Engineering and the Biomedical Research CentreVancouverBCCanada
| | - Carsten Skurk
- Department of CardiologyCharité Universitätsmedizin BerlinBerlinGermany
- Franklin/German Centre for Cardiovascular Research (DZHK), Partner Site Berlin/Institute of Health (BIH)BerlinGermany
| | - Bénédicte Chazaud
- Institut NeuroMyoGène, Université Claude Bernard Lyon 1, CNRS UMR 5310, INSERM U1217Université de LyonLyonFrance
| | - Jan P Tuckermann
- Institute of Comparative Molecular EndocrinologyUniversität UlmUlmGermany
| | - Rémi Mounier
- Institut NeuroMyoGène, Université Claude Bernard Lyon 1, CNRS UMR 5310, INSERM U1217Université de LyonLyonFrance
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15
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Suleman S, Payne A, Bowden J, Haque SA, Zahn M, Fawaz S, Khalifa MS, Jobling S, Hay D, Franco M, Fronza R, Wang W, Strobel-Freidekind O, Deichmann A, Takeuchi Y, Waddington SN, Gil-Farina I, Schmidt M, Themis M. HIV- 1 lentivirus tethering to the genome is associated with transcription factor binding sites found in genes that favour virus survival. Gene Ther 2022; 29:720-729. [PMID: 35513551 PMCID: PMC9750860 DOI: 10.1038/s41434-022-00335-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Revised: 04/01/2022] [Accepted: 04/06/2022] [Indexed: 01/09/2023]
Abstract
Lentiviral vectors (LV) are attractive for permanent and effective gene therapy. However, integration into the host genome can cause insertional mutagenesis highlighting the importance of understanding of LV integration. Insertion site (IS) tethering is believed to involve cellular proteins such as PSIP1/LEDGF/p75, which binds to the virus pre-integration complexes (PICs) helping to target the virus genome. Transcription factors (TF) that bind both the vector LTR and host genome are also suspected influential to this. To determine the role of TF in the tethering process, we mapped predicted transcription factor binding sites (pTFBS) near to IS chosen by HIV-1 LV using a narrow 20 bp window in infected human induced pluripotent stem cells (iPSCs) and their hepatocyte-like cell (HLC) derivatives. We then aligned the pTFBS with these sequences found in the LTRs of native and self-inactivated LTRs. We found significant enrichment of these sequences for pTFBS essential to HIV-1 life cycle and virus survival. These same sites also appear in HIV-1 patient IS and in mice infected with HIV-1 based LV. This in silco data analysis suggests pTFBS present in the virus LTR and IS sites selected by HIV-1 LV are important to virus survival and propagation.
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Affiliation(s)
- Saqlain Suleman
- Department of Life Sciences, College of Health, Medicine & Life Sciences, Brunel University London, Uxbridge, UK
- Testavec Ltd, Queensgate House, Maidenhead, UK
| | - Annette Payne
- Testavec Ltd, Queensgate House, Maidenhead, UK
- Department of Computer Science, College of Engineering Design and Physical Sciences, Brunel University London, Uxbridge, UK
| | - Johnathan Bowden
- Department of Life Sciences, College of Health, Medicine & Life Sciences, Brunel University London, Uxbridge, UK
| | - Sharmin Al Haque
- Department of Life Sciences, College of Health, Medicine & Life Sciences, Brunel University London, Uxbridge, UK
| | - Marco Zahn
- Genewerk GmbH, Heidelberg, Germany
- University Heidelberg, Medical Faculty, Heidelberg, Germany
| | - Serena Fawaz
- Department of Life Sciences, College of Health, Medicine & Life Sciences, Brunel University London, Uxbridge, UK
| | - Mohammad S Khalifa
- Department of Life Sciences, College of Health, Medicine & Life Sciences, Brunel University London, Uxbridge, UK
| | - Susan Jobling
- Testavec Ltd, Queensgate House, Maidenhead, UK
- Institute of Environment, Health and Societies, College of Business, Arts and Social Sciences, Brunel University London, Uxbridge, UK
| | - David Hay
- Centre for Regenerative Medicine, The University of Edinburgh, Edinburgh, UK
| | | | | | - Wei Wang
- Genewerk GmbH, Heidelberg, Germany
| | | | | | - Yasuhiro Takeuchi
- Division of Infection and Immunity, University College London, London, UK
- Division of Advanced Therapies, National Institute for Biological Standards and Control, Potters Bar, UK
| | - Simon N Waddington
- Gene Transfer Technology, EGA Institute for Women's Health, University College London, London, UK
- MRC Antiviral Gene Therapy Research Unit, Faculty of Health Sciences, University of the Witswatersrand, Johannesburg, South Africa
| | | | - Manfred Schmidt
- Genewerk GmbH, Heidelberg, Germany
- Department of Translational Oncology, NCT and DKFZ, Heidelberg, Germany
| | - Michael Themis
- Department of Life Sciences, College of Health, Medicine & Life Sciences, Brunel University London, Uxbridge, UK.
- Division of Ecology and Evolution, Department of Life Sciences, Imperial College London, London, UK.
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16
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Song M, Dong S, Zhang X, Dai Y, Zhang X, Shen Y. A moderate static magnetic field promotes C. elegans longevity through cytochrome P450s. Sci Rep 2022; 12:16108. [PMID: 36167800 PMCID: PMC9515093 DOI: 10.1038/s41598-022-20647-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Accepted: 09/16/2022] [Indexed: 11/15/2022] Open
Abstract
Ageing is co-regulated by genetic and environmental factors. Life on earth lives and evolves in a mild geomagnetic field. Yet, the biological effects of a moderate magnetic field on ageing and the underlying genetic mechanisms remain barely unknown. Here, we report that a moderate static magnetic field (SMF) extends the lifespan of Caenorhabditis elegans, a well-established model organism in ageing research. Consistently, the SMF-treated worms show improved motility and mitochondrial function when aged. We identified from the transcriptomic changes upon SMF treatment that the upregulation of three cytochrome P450 genes are required for SMF-induced longevity. Our findings thus reveal that proper SMF treatment could promote longevity through the well-conserved cytochrome P450 enzymes.
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Affiliation(s)
- Mengjiao Song
- State Key Laboratory of Cell Biology, Innovation Center for Cell Signaling Network, CAS Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 320 Yueyang Rd., Shanghai, 200031, China
| | - Shiming Dong
- State Key Laboratory of Cell Biology, Innovation Center for Cell Signaling Network, CAS Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 320 Yueyang Rd., Shanghai, 200031, China
| | - Xiangfei Zhang
- High Magnetic Field Laboratory, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, China.,Science Island Branch of Graduate School, University of Science and Technology of China, Hefei, China
| | - Yumin Dai
- State Key Laboratory of Cell Biology, Innovation Center for Cell Signaling Network, CAS Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 320 Yueyang Rd., Shanghai, 200031, China
| | - Xin Zhang
- High Magnetic Field Laboratory, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, China.,Science Island Branch of Graduate School, University of Science and Technology of China, Hefei, China
| | - Yidong Shen
- State Key Laboratory of Cell Biology, Innovation Center for Cell Signaling Network, CAS Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 320 Yueyang Rd., Shanghai, 200031, China.
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17
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Bonfim Neto AP, Cardoso APMM, Silva RDS, Sousa LMMDC, Giometti IC, Binelli M, Bauersachs S, Kowalewski MP, Papa PDC. An approach to uncover the relationship between 17b-estradiol and ESR1/ESR2 ratio in the regulation of canine corpus luteum. Front Vet Sci 2022; 9:885257. [PMID: 35982918 PMCID: PMC9378837 DOI: 10.3389/fvets.2022.885257] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2022] [Accepted: 07/15/2022] [Indexed: 11/28/2022] Open
Abstract
The canine corpus luteum (CL) is able to synthetise, activate and deactivate 17b-estradiol (E2) and also expresses nuclear estrogen receptors in a time-dependent manner during diestrus. Nevertheless, we are still missing a better comprehension of E2 functions in the canine CL, especially regarding the specific roles of estrogen receptor alpha (ERa) and ERb, encoded by ESR1 and 2, respectively. For that purpose, we analyzed transcriptomic data of canine non-pregnant CL collected on days 10, 20, 30, 40, 50 and 60 of diestrus and searched for differentially expressed genes (DEG) containing predicted transcription factor binding sites (TFBS) for ESR1 or ESR2. Based on biological functions of DEG presenting TFBS, expression of select transcripts and corresponding proteins was assessed. Additionally, luteal cells were collected across specific time points during diestrus and specificity of E2 responses was tested using ERa and/or ERb inhibitors. Bioinformatic analyses revealed 517 DEGs containing TFBS, from which 67 for both receptors. In general, abundance of predicted ESR1 targets was greater in the beginning, while abundance of ESR2 targets was greater in the end of diestrus. ESR1/ESR2 ratio shifted from an increasing to a decreasing pattern from day 30 to 40 post ovulation. Specific receptor inhibition suggested an ERa-mediated positive regulation of CL function at the beginning of diestrus and an ERb-mediated effect contributing to luteal regression. In conclusion, our data points toward a broad spectrum of action of E2 and its nuclear receptors, which can also act as transcription factors for other genes regulating canine CL function.
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Affiliation(s)
| | | | - Renata dos Santos Silva
- School of Veterinary Medicine and Animal Science, University of São Paulo, São Paulo, Brazil
| | | | - Ines Cristina Giometti
- Faculty of Veterinary Medicine, University of Western São Paulo, Presidente Prudente, Brazil
| | - Mario Binelli
- Department of Animal Sciences, University of Florida, Gainesville, FL, United States
| | - Stefan Bauersachs
- Institute of Veterinary Anatomy, Vetsuisse Faculty, University of Zurich, Zurich, Switzerland
| | | | - Paula de Carvalho Papa
- Institute of Veterinary Anatomy, Vetsuisse Faculty, University of Zurich, Zurich, Switzerland
- *Correspondence: Paula de Carvalho Papa
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Mekbib T, Suen TC, Rollins-Hairston A, Smith K, Armstrong A, Gray C, Owino S, Baba K, Baggs JE, Ehlen JC, Tosini G, DeBruyne JP. "The ubiquitin ligase SIAH2 is a female-specific regulator of circadian rhythms and metabolism". PLoS Genet 2022; 18:e1010305. [PMID: 35789210 PMCID: PMC9286287 DOI: 10.1371/journal.pgen.1010305] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Revised: 07/15/2022] [Accepted: 06/22/2022] [Indexed: 01/05/2023] Open
Abstract
Circadian clocks enable organisms to predict and align their behaviors and physiologies to constant daily day-night environmental cycle. Because the ubiquitin ligase Siah2 has been identified as a potential regulator of circadian clock function in cultured cells, we have used SIAH2-deficient mice to examine its function in vivo. Our experiments demonstrate a striking and unexpected sexually dimorphic effect of SIAH2-deficiency on the regulation of rhythmically expressed genes in the liver. The absence of SIAH2 in females, but not in males, altered the expression of core circadian clock genes and drastically remodeled the rhythmic transcriptome in the liver by increasing the number of day-time expressed genes, and flipping the rhythmic expression from nighttime expressed genes to the daytime. These effects are not readily explained by effects on known sexually dimorphic pathways in females. Moreover, loss of SIAH2 in females, not males, preferentially altered the expression of transcription factors and genes involved in regulating lipid and lipoprotein metabolism. Consequently, SIAH2-deficient females, but not males, displayed disrupted daily lipid and lipoprotein patterns, increased adiposity and impaired metabolic homeostasis. Overall, these data suggest that SIAH2 may be a key component of a female-specific circadian transcriptional output circuit that directs the circadian timing of gene expression to regulate physiological rhythms, at least in the liver. In turn, our findings imply that sex-specific transcriptional mechanisms may closely interact with the circadian clock to tailor overt rhythms for sex-specific needs.
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Affiliation(s)
- Tsedey Mekbib
- Neuroscience Institute, Department of Pharmacology and Toxicology, Morehouse School of Medicine, Atlanta, Georgia, United States of America
| | - Ting-Chung Suen
- Neuroscience Institute, Department of Pharmacology and Toxicology, Morehouse School of Medicine, Atlanta, Georgia, United States of America
| | - Aisha Rollins-Hairston
- Neuroscience Institute, Department of Pharmacology and Toxicology, Morehouse School of Medicine, Atlanta, Georgia, United States of America
| | - Kiandra Smith
- Neuroscience Institute, Department of Pharmacology and Toxicology, Morehouse School of Medicine, Atlanta, Georgia, United States of America
| | - Ariel Armstrong
- Neuroscience Institute, Department of Pharmacology and Toxicology, Morehouse School of Medicine, Atlanta, Georgia, United States of America
| | - Cloe Gray
- Neuroscience Institute, Department of Neurobiology, Morehouse School of Medicine, Atlanta, Georgia, United States of America
| | - Sharon Owino
- Neuroscience Institute, Department of Pharmacology and Toxicology, Morehouse School of Medicine, Atlanta, Georgia, United States of America
| | - Kenkichi Baba
- Neuroscience Institute, Department of Pharmacology and Toxicology, Morehouse School of Medicine, Atlanta, Georgia, United States of America
| | - Julie E. Baggs
- Neuroscience Institute, Department of Pharmacology and Toxicology, Morehouse School of Medicine, Atlanta, Georgia, United States of America
| | - J. Christopher Ehlen
- Neuroscience Institute, Department of Neurobiology, Morehouse School of Medicine, Atlanta, Georgia, United States of America
| | - Gianluca Tosini
- Neuroscience Institute, Department of Pharmacology and Toxicology, Morehouse School of Medicine, Atlanta, Georgia, United States of America
| | - Jason P. DeBruyne
- Neuroscience Institute, Department of Pharmacology and Toxicology, Morehouse School of Medicine, Atlanta, Georgia, United States of America
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Switzer CH, Cho HJ, Eykyn TR, Lavender P, Eaton P. NOS2 and S-nitrosothiol signaling induces DNA hypomethylation and LINE-1 retrotransposon expression. Proc Natl Acad Sci U S A 2022; 119:e2200022119. [PMID: 35584114 PMCID: PMC9173756 DOI: 10.1073/pnas.2200022119] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2022] [Accepted: 03/29/2022] [Indexed: 12/31/2022] Open
Abstract
Inducible nitric oxide synthase (NOS2) produces high local concentrations of nitric oxide (NO), and its expression is associated with inflammation, cellular stress signals, and cellular transformation. Additionally, NOS2 expression results in aggressive cancer cell phenotypes and is correlated with poor outcomes in patients with breast cancer. DNA hypomethylation, especially of noncoding repeat elements, is an early event in carcinogenesis and is a common feature of cancer cells. In addition to altered gene expression, DNA hypomethylation results in genomic instability via retrotransposon activation. Here, we show that NOS2 expression and associated NO signaling results in substantial DNA hypomethylation in human cell lines by inducing the degradation of DNA (cytosine-5)–methyltransferase 1 (DNMT1) protein. Similarly, NOS2 expression levels were correlated with decreased DNA methylation in human breast tumors. NOS2 expression and NO signaling also resulted in long interspersed noncoding element 1 (LINE-1) retrotransposon hypomethylation, expression, and DNA damage. DNMT1 degradation was mediated by an NO/p38-MAPK/lysine acetyltransferase 5–dependent mechanism. Furthermore, we show that this mechanism is required for NO-mediated epithelial transformation. Therefore, we conclude that NOS2 and NO signaling results in DNA damage and malignant cellular transformation via an epigenetic mechanism.
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Affiliation(s)
- Christopher H. Switzer
- William Harvey Research Institute, Barts & The London School of Medicine and Dentistry, Queen Mary University of London, London, EC1M 6BQ, United Kingdom
| | - Hyun-Ju Cho
- William Harvey Research Institute, Barts & The London School of Medicine and Dentistry, Queen Mary University of London, London, EC1M 6BQ, United Kingdom
| | - Thomas R. Eykyn
- School of Biomedical Engineering & Imaging Sciences, King’s College London, St. Thomas’ Hospital, London, SE1 7EH, United Kingdom
| | - Paul Lavender
- AsthmaUK Centre in Allergic Mechanisms of Asthma, School of Immunology and Microbial Science, King’s College London, Guy’s Hospital, London, SE1 9RT, United Kingdom
| | - Philip Eaton
- William Harvey Research Institute, Barts & The London School of Medicine and Dentistry, Queen Mary University of London, London, EC1M 6BQ, United Kingdom
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MEOX2 Regulates the Growth and Survival of Glioblastoma Stem Cells by Modulating Genes of the Glycolytic Pathway and Response to Hypoxia. Cancers (Basel) 2022; 14:cancers14092304. [PMID: 35565433 PMCID: PMC9099809 DOI: 10.3390/cancers14092304] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Revised: 05/03/2022] [Accepted: 05/04/2022] [Indexed: 02/04/2023] Open
Abstract
Simple Summary Glioblastoma is the most common incurable primary brain tumor in adults, typically leading to death within 15 months of diagnosis. Although there is an ongoing debate in the scientific community about the precise cellular origin of this tumor, glioblastoma stem cells (GSCs), which are able to self-renew, yield a full tumor mass, and determine chemo- and radio-resistance, are recognized to have a pivotal role. Our research aims to understand the role of the mesenchyme homeobox 2 (MEOX2) transcription factor in GSCs where it is strongly and specifically expressed. We have found that MEOX2 is indeed important for the survival of these cells. In fact, when we reduce its expression in two different GSC lines, they undergo a massive death accompanied by the inhibition of key genes of the glycolytic metabolism, the main source of energy for these cells. Our results reveal a novel function for MEOX2 in glioblastoma and suggest a mechanism through which GSCs may survive even in unfavorable conditions. Abstract The most widely accepted hypothesis for the development of glioblastoma suggests that glioblastoma stem-like cells (GSCs) are crucially involved in tumor initiation and recurrence as well as in the occurrence of chemo- and radio-resistance. Mesenchyme homeobox 2 (MEOX2) is a transcription factor overexpressed in glioblastoma, whose expression is negatively correlated with patient survival. Starting from our observation that MEOX2 expression is strongly enhanced in six GSC lines, we performed shRNA-mediated knock-down experiments in two different GSC lines and found that MEOX2 depletion resulted in the inhibition of cell growth and sphere-forming ability and an increase in apoptotic cell death. By a deep transcriptome analysis, we identified a core group of genes modulated in response to MEOX2 knock-down. Among these genes, the repressed ones are largely enriched in genes involved in the hypoxic response and glycolytic pathway, two strictly related pathways that contribute to the resistance of high-grade gliomas to therapies. An in silico study of the regulatory regions of genes differentially expressed by MEOX2 knock-down revealed that they mainly consisted of GC-rich regions enriched for Sp1 and Klf4 binding motifs, two main regulators of metabolism in glioblastoma. Our results show, for the first time, the involvement of MEOX2 in the regulation of genes of GSC metabolism, which is essential for the survival and growth of these cells.
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Kitagawa A, Jacob C, Gupte SA. Glucose-6-phosphate dehydrogenase and MEG3 controls hypoxia-induced expression of serum response factor (SRF) and SRF-dependent genes in pulmonary smooth muscle cell. J Smooth Muscle Res 2022; 58:34-49. [PMID: 35491127 PMCID: PMC9057900 DOI: 10.1540/jsmr.58.34] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Although hypoxia induces aberrant gene expression and dedifferentiation of smooth muscle cells (SMCs), mechanisms that alter dedifferentiation gene expression by hypoxia remain unclear. Therefore, we aimed to gain insight into the hypoxia-controlled gene expression in SMCs. We conducted studies using SMCs cultured in 3% oxygen (hypoxia) and the lungs of mice exposed to 10% oxygen (hypoxia). Our results suggest hypoxia upregulated expression of transcription factor CP2-like protein1, krüppel-like factor 4, and E2f transcription factor 1 enriched genes including basonuclin 2 (Bcn2), serum response factor (Srf), polycomb 3 (Cbx8), homeobox D9 (Hoxd9), lysine demethylase 1A (Kdm1a), etc. Additionally, we found that silencing glucose-6-phosphate dehydrogenase (G6PD) expression and inhibiting G6PD activity downregulated Srf transcript and hypomethylation of SMC genes (Myocd, Myh11, and Cnn1) and concomitantly increased their expression in the lungs of hypoxic mice. Furthermore, G6PD inhibition hypomethylated MEG3, a long non-coding RNA, gene and upregulated MEG3 expression in the lungs of hypoxic mice and in hypoxic SMCs. Silencing MEG3 expression in SMC mitigated the hypoxia-induced transcription of SRF. These findings collectively demonstrate that MEG3 and G6PD codependently regulate Srf expression in hypoxic SMCs. Moreover, G6PD inhibition upregulated SRF-MYOCD-driven gene expression, determinant of a differentiated SMC phenotype.
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Affiliation(s)
- Atsushi Kitagawa
- Department of Pharmacology, New York Medical College, BSB 546, 15 Dana Road, Valhalla, NY 10595, USA
| | - Christina Jacob
- Department of Pharmacology, New York Medical College, BSB 546, 15 Dana Road, Valhalla, NY 10595, USA
| | - Sachin A Gupte
- Department of Pharmacology, New York Medical College, BSB 546, 15 Dana Road, Valhalla, NY 10595, USA
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22
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Heat shock protein 60 couples an oxidative stress-responsive p38/MK2 signaling and NF-κB survival machinery in cancer cells. Redox Biol 2022; 51:102293. [PMID: 35316673 PMCID: PMC8943299 DOI: 10.1016/j.redox.2022.102293] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Revised: 03/10/2022] [Accepted: 03/15/2022] [Indexed: 11/22/2022] Open
Abstract
Mitochondria communicate with other cellular compartments via the secretion of protein factors. Here, we report an unexpected messenger role for heat shock protein 60 (HSP60) as a mitochondrial-releasing protein factor that couples stress-sensing signaling and cell survival machineries. We show that mild oxidative stress predominantly activates the p38/MK2 complex, which phosphorylates mitochondrial fission factor 1 (MFF1) at the S155 site. Such phosphorylated MFF1 leads to the oligomerization of voltage anion-selective channel 1, thereby triggering the formation of a mitochondrial membrane pore through which the matrix protein HSP60 passes. The liberated HSP60 associates with and activates the IκB kinase (IKK) complex in the cytosol, which consequently induces the NF-κB-dependent expression of survival genes in nucleus. Indeed, inhibition of the HSP60 release or HSP60-IKK interaction sensitizes the cancer cells to mild oxidative stress and regresses the tumorigenic growth of cancer cells in the mouse xenograft model. Thus, this study reveals a novel mitonuclear survival axis responding to oxidative stress. Mitochondria release the matrix protein HSP60 to the cytosol under mild oxidative stress. Mild oxidative stress activates p38/MK2 complex, which phosphorylates MFF1 at S155 site. MFF1 phosphorylation triggers the VDAC1 oligomerizationto form a mitochondrial membrane pore for the HSP60 release. The released HSP60 activates the IKK/NF-κB survival signaling in the in vitro and in vivo models.
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Klees S, Heinrich F, Schmitt AO, Gültas M. agReg-SNPdb-Plants: A Database of Regulatory SNPs for Agricultural Plant Species. BIOLOGY 2022; 11:biology11050684. [PMID: 35625412 PMCID: PMC9138521 DOI: 10.3390/biology11050684] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/25/2022] [Revised: 04/25/2022] [Accepted: 04/27/2022] [Indexed: 11/19/2022]
Abstract
Simple Summary In breeding research, the investigation of regulatory SNPs (rSNPs) is becoming increasingly important due to their potential causal role for specific functional traits. Especially for crop species, there is still a lack of systematic analyses to detect rSNPs and their predicted effects on the binding of transcription factors. In this study, we present agReg-SNPdb-Plants, a database storing genome-wide collections of regulatory SNPs for agricultural plant species which can be queried via a web interface. Abstract Single nucleotide polymorphisms (SNPs) that are located in the promoter regions of genes and affect the binding of transcription factors (TFs) are called regulatory SNPs (rSNPs). Their identification can be highly valuable for the interpretation of genome-wide association studies (GWAS), since rSNPs can reveal the biologically causative variant and decipher the regulatory mechanisms behind a phenotype. In our previous work, we presented agReg-SNPdb, a database of regulatory SNPs for agriculturally important animal species. To complement this previous work, in this study we present the extension agReg-SNPdb-Plants storing rSNPs and their predicted effects on TF-binding for 13 agriculturally important plant species and subspecies (Brassica napus, Helianthus annuus, Hordeum vulgare, Oryza glaberrima, Oryza glumipatula, Oryza sativa Indica, Oryza sativa Japonica, Solanum lycopersicum, Sorghum bicolor, Triticum aestivum, Triticum turgidum, Vitis vinifera, and Zea mays). agReg-SNPdb-Plants can be queried via a web interface that allows users to search for SNP IDs, chromosomal regions, or genes. For a comprehensive interpretation of GWAS results or larger SNP-sets, it is possible to download the whole list of SNPs and their impact on transcription factor binding sites (TFBSs) from the website chromosome-wise.
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Affiliation(s)
- Selina Klees
- Breeding Informatics Group, Department of Animal Sciences, Georg-August University, Margarethe von Wrangell-Weg 7, 37075 Göttingen, Germany; (F.H.); (A.O.S.)
- Center for Integrated Breeding Research (CiBreed), Carl-Sprengel-Weg 1, Georg-August University, 37075 Göttingen, Germany
- Correspondence: (S.K.); (M.G.)
| | - Felix Heinrich
- Breeding Informatics Group, Department of Animal Sciences, Georg-August University, Margarethe von Wrangell-Weg 7, 37075 Göttingen, Germany; (F.H.); (A.O.S.)
| | - Armin Otto Schmitt
- Breeding Informatics Group, Department of Animal Sciences, Georg-August University, Margarethe von Wrangell-Weg 7, 37075 Göttingen, Germany; (F.H.); (A.O.S.)
- Center for Integrated Breeding Research (CiBreed), Carl-Sprengel-Weg 1, Georg-August University, 37075 Göttingen, Germany
| | - Mehmet Gültas
- Center for Integrated Breeding Research (CiBreed), Carl-Sprengel-Weg 1, Georg-August University, 37075 Göttingen, Germany
- Faculty of Agriculture, South Westphalia University of Applied Sciences, Lübecker Ring 2, 59494 Soest, Germany
- Correspondence: (S.K.); (M.G.)
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Laggner M, Oberndorfer F, Golabi B, Bauer J, Zuckermann A, Hacker P, Lang I, Skoro-Sajer N, Gerges C, Taghavi S, Jaksch P, Mildner M, Ankersmit HJ, Moser B. EGR1 Is Implicated in Right Ventricular Cardiac Remodeling Associated with Pulmonary Hypertension. BIOLOGY 2022; 11:biology11050677. [PMID: 35625405 PMCID: PMC9138384 DOI: 10.3390/biology11050677] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/10/2022] [Revised: 04/25/2022] [Accepted: 04/26/2022] [Indexed: 11/16/2022]
Abstract
Background: Pulmonary hypertension (PH) is a vasoconstrictive disease characterized by elevated mean pulmonary arterial pressure (mPAP) at rest. Idiopathic pulmonary arterial hypertension (iPAH) and chronic thromboembolic pulmonary hypertension (CTEPH) represent two distinct subtypes of PH. Persisting PH leads to right ventricular (RV) hypertrophy, heart failure, and death. RV performance predicts survival and surgical interventions re-establishing physiological mPAP reverse cardiac remodeling. Nonetheless, a considerable number of PH patients are deemed inoperable. The underlying mechanism(s) governing cardiac regeneration, however, remain largely elusive. Methods: In a longitudinal approach, we profiled the transcriptional landscapes of hypertrophic RVs and recovered hearts 3 months after surgery of iPAH and CTEPH patients. Results: Genes associated with cellular responses to inflammatory stimuli and metal ions were downregulated, and cardiac muscle tissue development was induced in iPAH after recovery. In CTEPH patients, genes related to muscle cell development were decreased, and genes governing cardiac conduction were upregulated in RVs following regeneration. Intriguingly, early growth response 1 (EGR1), a profibrotic regulator, was identified as a major transcription factor of hypertrophic RVs in iPAH and CTEPH. A histological assessment confirmed our biocomputational results, and suggested a pivotal role for EGR1 in RV vasculopathy. Conclusion: Our findings improved our understanding of the molecular events driving reverse cardiac remodeling following surgery. EGR1 might represent a promising candidate for targeted therapy of PH patients not eligible for surgical treatment.
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Affiliation(s)
- Maria Laggner
- Department of Thoracic Surgery, Medical University of Vienna, 1090 Vienna, Austria; (M.L.); (J.B.); (S.T.); (P.J.); (H.J.A.)
- Applied Immunology Laboratory, Medical University of Vienna, 1090 Vienna, Austria
| | - Felicitas Oberndorfer
- Clinical Institute of Pathology, Medical University of Vienna, 1090 Vienna, Austria;
| | - Bahar Golabi
- Department of Dermatology, Medical University of Vienna, 1090 Vienna, Austria; (B.G.); (M.M.)
| | - Jonas Bauer
- Department of Thoracic Surgery, Medical University of Vienna, 1090 Vienna, Austria; (M.L.); (J.B.); (S.T.); (P.J.); (H.J.A.)
| | - Andreas Zuckermann
- Department of Cardiology, Medical University of Vienna, 1090 Vienna, Austria;
| | - Philipp Hacker
- Department of Oral and Maxillofacial Surgery, University Hospital St. Poelten, 3100 St. Poelten, Austria;
| | - Irene Lang
- Department of Medicine II, Division of Cardiology, Medical University of Vienna, 1090 Vienna, Austria; (I.L.); (N.S.-S.); (C.G.)
| | - Nika Skoro-Sajer
- Department of Medicine II, Division of Cardiology, Medical University of Vienna, 1090 Vienna, Austria; (I.L.); (N.S.-S.); (C.G.)
| | - Christian Gerges
- Department of Medicine II, Division of Cardiology, Medical University of Vienna, 1090 Vienna, Austria; (I.L.); (N.S.-S.); (C.G.)
| | - Shahrokh Taghavi
- Department of Thoracic Surgery, Medical University of Vienna, 1090 Vienna, Austria; (M.L.); (J.B.); (S.T.); (P.J.); (H.J.A.)
| | - Peter Jaksch
- Department of Thoracic Surgery, Medical University of Vienna, 1090 Vienna, Austria; (M.L.); (J.B.); (S.T.); (P.J.); (H.J.A.)
| | - Michael Mildner
- Department of Dermatology, Medical University of Vienna, 1090 Vienna, Austria; (B.G.); (M.M.)
| | - Hendrik Jan Ankersmit
- Department of Thoracic Surgery, Medical University of Vienna, 1090 Vienna, Austria; (M.L.); (J.B.); (S.T.); (P.J.); (H.J.A.)
- Applied Immunology Laboratory, Medical University of Vienna, 1090 Vienna, Austria
| | - Bernhard Moser
- Department of Thoracic Surgery, Medical University of Vienna, 1090 Vienna, Austria; (M.L.); (J.B.); (S.T.); (P.J.); (H.J.A.)
- Correspondence:
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Sobhani NC, Mernoff R, Abraha M, Okorie CN, Marquez-Magana L, Gaw SL, Robinson JF. Integrated analysis of transcriptomic datasets to identify placental biomarkers of spontaneous preterm birth. Placenta 2022; 122:66-73. [DOI: 10.1016/j.placenta.2022.03.122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Revised: 03/06/2022] [Accepted: 03/22/2022] [Indexed: 11/28/2022]
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VandenBosch LS, Luu K, Timms AE, Challam S, Wu Y, Lee AY, Cherry TJ. Machine Learning Prediction of Non-Coding Variant Impact in Human Retinal cis-Regulatory Elements. Transl Vis Sci Technol 2022; 11:16. [PMID: 35435921 PMCID: PMC9034719 DOI: 10.1167/tvst.11.4.16] [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: 10/21/2021] [Accepted: 03/25/2022] [Indexed: 11/24/2022] Open
Abstract
Purpose Prior studies have demonstrated the significance of specific cis-regulatory variants in retinal disease; however, determining the functional impact of regulatory variants remains a major challenge. In this study, we utilized a machine learning approach, trained on epigenomic data from the adult human retina, to systematically quantify the predicted impact of cis-regulatory variants. Methods We used human retinal DNA accessibility data (ATAC-seq) to determine a set of 18.9k high-confidence, putative cis-regulatory elements. Eighty percent of these elements were used to train a machine learning model utilizing a gapped k-mer support vector machine-based approach. In silico saturation mutagenesis and variant scoring was applied to predict the functional impact of all potential single nucleotide variants within cis-regulatory elements. Impact scores were tested in a 20% hold-out dataset and compared to allele population frequency, phylogenetic conservation, transcription factor (TF) binding motifs, and existing massively parallel reporter assay data. Results We generated a model that distinguishes between human retinal regulatory elements and negative test sequences with 95% accuracy. Among a hold-out test set of 3.7k human retinal CREs, all possible single nucleotide variants were scored. Variants with negative impact scores correlated with higher phylogenetic conservation of the reference allele, disruption of predicted TF binding motifs, and massively parallel reporter expression. Conclusions We demonstrated the utility of human retinal epigenomic data to train a machine learning model for the purpose of predicting the impact of non-coding regulatory sequence variants. Our model accurately scored sequences and predicted putative transcription factor binding motifs. This approach has the potential to expedite the characterization of pathogenic non-coding sequence variants in the context of unexplained retinal disease. Translational Relevance This workflow and resulting dataset serve as a promising genomic tool to facilitate the clinical prioritization of functionally disruptive non-coding mutations in the retina.
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Affiliation(s)
- Leah S. VandenBosch
- Center for Developmental Biology and Regenerative Medicine, Seattle Children's Research Institute, Seattle, WA, USA
| | - Kelsey Luu
- Center for Developmental Biology and Regenerative Medicine, Seattle Children's Research Institute, Seattle, WA, USA
| | - Andrew E. Timms
- Center for Developmental Biology and Regenerative Medicine, Seattle Children's Research Institute, Seattle, WA, USA
| | - Shriya Challam
- Center for Developmental Biology and Regenerative Medicine, Seattle Children's Research Institute, Seattle, WA, USA
| | - Yue Wu
- University of Washington Department of Ophthalmology, Seattle, WA, USA
| | - Aaron Y. Lee
- University of Washington Department of Ophthalmology, Seattle, WA, USA
- Brotman Baty Institute for Precision Medicine, Seattle, WA, USA
| | - Timothy J. Cherry
- Center for Developmental Biology and Regenerative Medicine, Seattle Children's Research Institute, Seattle, WA, USA
- Brotman Baty Institute for Precision Medicine, Seattle, WA, USA
- University of Washington Department of Pediatrics, Seattle, WA, USA
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Identifying phenotype-associated subpopulations by integrating bulk and single-cell sequencing data. Nat Biotechnol 2022; 40:527-538. [PMID: 34764492 PMCID: PMC9010342 DOI: 10.1038/s41587-021-01091-3] [Citation(s) in RCA: 120] [Impact Index Per Article: 60.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Accepted: 09/10/2021] [Indexed: 02/07/2023]
Abstract
Single-cell RNA sequencing (scRNA-seq) distinguishes cell types, states and lineages within the context of heterogeneous tissues. However, current single-cell data cannot directly link cell clusters with specific phenotypes. Here we present Scissor, a method that identifies cell subpopulations from single-cell data that are associated with a given phenotype. Scissor integrates phenotype-associated bulk expression data and single-cell data by first quantifying the similarity between each single cell and each bulk sample. It then optimizes a regression model on the correlation matrix with the sample phenotype to identify relevant subpopulations. Applied to a lung cancer scRNA-seq dataset, Scissor identified subsets of cells associated with worse survival and with TP53 mutations. In melanoma, Scissor discerned a T cell subpopulation with low PDCD1/CTLA4 and high TCF7 expression associated with an immunotherapy response. Beyond cancer, Scissor was effective in interpreting facioscapulohumeral muscular dystrophy and Alzheimer's disease datasets. Scissor identifies biologically and clinically relevant cell subpopulations from single-cell assays by leveraging phenotype and bulk-omics datasets.
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Shin J, Tkachenko S, Chaklader M, Pletz C, Singh K, Bulut GB, Han YM, Mitchell K, Baylis RA, Kuzmin AA, Hu B, Lathia JD, Stenina-Adognravi O, Podrez E, Byzova TV, Owens GK, Cherepanova OA. Endothelial OCT4 is atheroprotective by preventing metabolic and phenotypic dysfunction. Cardiovasc Res 2022; 118:2458-2477. [PMID: 35325071 PMCID: PMC9890633 DOI: 10.1093/cvr/cvac036] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/07/2022] [Revised: 02/22/2022] [Accepted: 03/05/2022] [Indexed: 02/04/2023] Open
Abstract
AIMS Until recently, the pluripotency factor Octamer (ATGCAAAT)-binding transcriptional factor 4 (OCT4) was believed to be dispensable in adult somatic cells. However, our recent studies provided clear evidence that OCT4 has a critical atheroprotective role in smooth muscle cells. Here, we asked if OCT4 might play a functional role in regulating endothelial cell (EC) phenotypic modulations in atherosclerosis. METHODS AND RESULTS Specifically, we show that EC-specific Oct4 knockout resulted in increased lipid, LGALS3+ cell accumulation, and altered plaque characteristics consistent with decreased plaque stability. A combination of single-cell RNA sequencing and EC-lineage-tracing studies revealed increased EC activation, endothelial-to-mesenchymal transitions, plaque neovascularization, and mitochondrial dysfunction in the absence of OCT4. Furthermore, we show that the adenosine triphosphate (ATP) transporter, ATP-binding cassette (ABC) transporter G2 (ABCG2), is a direct target of OCT4 in EC and establish for the first time that the OCT4/ABCG2 axis maintains EC metabolic homeostasis by regulating intracellular heme accumulation and related reactive oxygen species production, which, in turn, contributes to atherogenesis. CONCLUSIONS These results provide the first direct evidence that OCT4 has a protective metabolic function in EC and identifies vascular OCT4 and its signalling axis as a potential target for novel therapeutics.
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Affiliation(s)
| | | | | | - Connor Pletz
- Department of Cardiovascular and Metabolic Sciences, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, USA
| | - Kanwardeep Singh
- Department of Cardiovascular and Metabolic Sciences, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, USA
| | - Gamze B Bulut
- Robert M. Berne Cardiovascular Research Center, University of Virginia, Charlottesville, VA, USA
| | - Young min Han
- Center for Molecular and Translational Medicine, Georgia State University, Atlanta, GA, USA
| | - Kelly Mitchell
- Department of Cardiovascular and Metabolic Sciences, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, USA
| | - Richard A Baylis
- Robert M. Berne Cardiovascular Research Center, University of Virginia, Charlottesville, VA, USA
| | - Andrey A Kuzmin
- Russian Academy of Sciences, Institute of Cytology, St Petersburg, Russian Federation
| | - Bo Hu
- Department of Quantitative Health Sciences, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, USA
| | - Justin D Lathia
- Department of Cardiovascular and Metabolic Sciences, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, USA
| | - Olga Stenina-Adognravi
- Department of Cardiovascular and Metabolic Sciences, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, USA
| | - Eugene Podrez
- Department of Inflammation and Immunity, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, USA
| | - Tatiana V Byzova
- Department of Neuroscience, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, USA
| | - Gary K Owens
- Robert M. Berne Cardiovascular Research Center, University of Virginia, Charlottesville, VA, USA,Department of Molecular Physiology and Biological Physics, University of Virginia, Charlottesville, VA, USA
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29
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Prasad M, Zorea J, Jagadeeshan S, Shnerb AB, Mathukkada S, Bouaoud J, Michon L, Novoplansky O, Badarni M, Cohen L, Yegodayev KM, Tzadok S, Rotblat B, Brezina L, Mock A, Karabajakian A, Fayette J, Cohen I, Cooks T, Allon I, Dimitstein O, Joshua B, Kong D, Voronov E, Scaltriti M, Carmi Y, Conde-Lopez C, Hess J, Kurth I, Morris LGT, Saintigny P, Elkabets M. MEK1/2 inhibition transiently alters the tumor immune microenvironment to enhance immunotherapy efficacy against head and neck cancer. J Immunother Cancer 2022; 10:jitc-2021-003917. [PMID: 35292516 PMCID: PMC8928405 DOI: 10.1136/jitc-2021-003917] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/06/2022] [Indexed: 11/05/2022] Open
Abstract
Background Although the mitogen-activated protein kinases (MAPK) pathway is hyperactive in head and neck cancer (HNC), inhibition of MEK1/2 in HNC patients has not shown clinically meaningful activity. Therefore, we aimed to characterize the effect of MEK1/2 inhibition on the tumor microenvironment (TME) of MAPK-driven HNC, elucidate tumor-host interaction mechanisms facilitating immune escape on treatment, and apply rationale-based therapy combination immunotherapy and MEK1/2 inhibitor to induce tumor clearance. Methods Mouse syngeneic tumors and xenografts experiments were used to analyze tumor growth in vivo. Single-cell cytometry by time of flight, flow cytometry, and tissue stainings were used to profile the TME in response to trametinib (MEK1/2 inhibitor). Co-culture of myeloid-derived suppressor cells (MDSC) with CD8+ T cells was used to measure immune suppression. Overexpression of colony-stimulating factor-1 (CSF-1) in tumor cells was used to show the effect of tumor-derived CSF-1 on sensitivity to trametinib and anti-programmed death- 1 (αPD-1) in mice. In HNC patients, the ratio between CSF-1 and CD8A was measured to test the association with clinical benefit to αPD-1 and αPD-L1 treatment. Results Using preclinical HNC models, we demonstrated that treatment with trametinib delays HNC initiation and progression by reducing tumor cell proliferation and enhancing the antitumor immunity of CD8+ T cells. Activation of CD8+ T cells by supplementation with αPD-1 antibody eliminated tumors and induced an immune memory in the cured mice. Mechanistically, an early response to trametinib treatment sensitized tumors to αPD-1-supplementation by attenuating the expression of tumor-derived CSF-1, which reduced the abundance of two CSF-1R+CD11c+ MDSC populations in the TME. In contrast, prolonged treatment with trametinib abolished the antitumor activity of αPD-1, because tumor cells undergoing the epithelial to mesenchymal transition in response to trametinib restored CSF-1 expression and recreated an immune-suppressive TME. Conclusion Our findings provide the rationale for testing the trametinib/αPD-1 combination in HNC and highlight the importance of sensitizing tumors to αPD-1 by using MEK1/2 to interfere with the tumor–host interaction. Moreover, we describe the concept that treatment of cancer with a targeted therapy transiently induces an immune-active microenvironment, and supplementation of immunotherapy during this time further activates the antitumor machinery to cause tumor elimination.
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Affiliation(s)
- Manu Prasad
- The Shraga Segal Department of Microbiology, Immunology, and Genetics, Ben-Gurion University of the Negev, Beer-Sheva, Israel.,Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Jonathan Zorea
- The Shraga Segal Department of Microbiology, Immunology, and Genetics, Ben-Gurion University of the Negev, Beer-Sheva, Israel.,Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Sankar Jagadeeshan
- The Shraga Segal Department of Microbiology, Immunology, and Genetics, Ben-Gurion University of the Negev, Beer-Sheva, Israel.,Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Avital B Shnerb
- The Shraga Segal Department of Microbiology, Immunology, and Genetics, Ben-Gurion University of the Negev, Beer-Sheva, Israel.,Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Sooraj Mathukkada
- The Shraga Segal Department of Microbiology, Immunology, and Genetics, Ben-Gurion University of the Negev, Beer-Sheva, Israel.,Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Jebrane Bouaoud
- Department of Translational Medicine Oncology, Centre Léon Bérard, Lyon 69373, France.,Univ Lyon, Université Claude Bernard Lyon, INSERM 1052, CNRS 5286, Centre Léon Bérard, Centre de Recherche en Cancérologie de Lyon, Lyon 69373, France
| | - Lucas Michon
- Univ Lyon, Université Claude Bernard Lyon, INSERM 1052, CNRS 5286, Centre Léon Bérard, Centre de Recherche en Cancérologie de Lyon, Lyon 69373, France
| | - Ofra Novoplansky
- The Shraga Segal Department of Microbiology, Immunology, and Genetics, Ben-Gurion University of the Negev, Beer-Sheva, Israel.,Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Mai Badarni
- The Shraga Segal Department of Microbiology, Immunology, and Genetics, Ben-Gurion University of the Negev, Beer-Sheva, Israel.,Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Limor Cohen
- The Shraga Segal Department of Microbiology, Immunology, and Genetics, Ben-Gurion University of the Negev, Beer-Sheva, Israel.,Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Ksenia M Yegodayev
- The Shraga Segal Department of Microbiology, Immunology, and Genetics, Ben-Gurion University of the Negev, Beer-Sheva, Israel.,Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Sapir Tzadok
- The Shraga Segal Department of Microbiology, Immunology, and Genetics, Ben-Gurion University of the Negev, Beer-Sheva, Israel.,Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Barak Rotblat
- Department of Life Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Libor Brezina
- The Shraga Segal Department of Microbiology, Immunology, and Genetics, Ben-Gurion University of the Negev, Beer-Sheva, Israel.,Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Andreas Mock
- Department of Medical Oncology, Heidelberg University Hospital, Heidelberg, Germany.,Division of Translational Medical Oncology, NCT Heidelberg, German Cancer Research Centre (DKFZ), Heidelberg, Germany
| | - Andy Karabajakian
- Department of Translational Medicine Oncology, Centre Léon Bérard, Lyon 69373, France.,Univ Lyon, Université Claude Bernard Lyon, INSERM 1052, CNRS 5286, Centre Léon Bérard, Centre de Recherche en Cancérologie de Lyon, Lyon 69373, France.,Department of Medical Oncology, Centre Léon Bérard, Lyon 69373, France
| | - Jérôme Fayette
- Department of Translational Medicine Oncology, Centre Léon Bérard, Lyon 69373, France.,Univ Lyon, Université Claude Bernard Lyon, INSERM 1052, CNRS 5286, Centre Léon Bérard, Centre de Recherche en Cancérologie de Lyon, Lyon 69373, France.,Department of Medical Oncology, Centre Léon Bérard, Lyon 69373, France
| | - Idan Cohen
- The Shraga Segal Department of Microbiology, Immunology, and Genetics, Ben-Gurion University of the Negev, Beer-Sheva, Israel.,Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Tomer Cooks
- The Shraga Segal Department of Microbiology, Immunology, and Genetics, Ben-Gurion University of the Negev, Beer-Sheva, Israel.,Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Irit Allon
- Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel.,Institute of Pathology, Barzilai University Medical Center, Ashkelon, Israel
| | - Orr Dimitstein
- Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel.,Department of Otolaryngology-Head & Neck Surgery, Soroka University Medical Center, Beer-Sheva, Israel
| | - Benzion Joshua
- Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel.,Department of Otorhinolaryngology and Head & Neck Surgery, Barzilai Medical Center, Ashkelon, Israel
| | - Dexin Kong
- School of Pharmaceutical Sciences, Tianjin Medical University, Tianjin, China
| | - Elena Voronov
- The Shraga Segal Department of Microbiology, Immunology, and Genetics, Ben-Gurion University of the Negev, Beer-Sheva, Israel.,Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Maurizio Scaltriti
- Human Oncology and Pathogenesis Program, Memorial Sloan Kettering Cancer Center, New York City, New York, USA
| | - Yaron Carmi
- Department of Pathology, Tel Aviv University, Tel Aviv, Israel
| | - Cristina Conde-Lopez
- Division of Radiooncology-Radiobiology, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Jochen Hess
- Section Experimental and Translational Head and Neck Oncology, Department of Otolaryngology, Head and Neck Surgery, University Hospital Heidelberg, Heidelberg, Germany.,Research Group Molecular Mechanisms of Head and Neck Tumors, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Ina Kurth
- Division of Radiooncology-Radiobiology, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Luc G T Morris
- Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, New York, USA
| | - Pierre Saintigny
- Department of Translational Medicine Oncology, Centre Léon Bérard, Lyon 69373, France.,Univ Lyon, Université Claude Bernard Lyon, INSERM 1052, CNRS 5286, Centre Léon Bérard, Centre de Recherche en Cancérologie de Lyon, Lyon 69373, France.,Department of Medical Oncology, Centre Léon Bérard, Lyon 69373, France
| | - Moshe Elkabets
- The Shraga Segal Department of Microbiology, Immunology, and Genetics, Ben-Gurion University of the Negev, Beer-Sheva, Israel .,Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel
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30
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Rand DM, Mossman JA, Spierer AN, Santiago JA. Mitochondria as environments for the nuclear genome in Drosophila: mitonuclear G×G×E. J Hered 2022; 113:37-47. [PMID: 34964900 PMCID: PMC8851671 DOI: 10.1093/jhered/esab066] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2021] [Accepted: 10/21/2021] [Indexed: 12/13/2022] Open
Abstract
Mitochondria evolved from a union of microbial cells belonging to distinct lineages that were likely anaerobic. The evolution of eukaryotes required a massive reorganization of the 2 genomes and eventual adaptation to aerobic environments. The nutrients and oxygen that sustain eukaryotic metabolism today are processed in mitochondria through coordinated expression of 37 mitochondrial genes and over 1000 nuclear genes. This puts mitochondria at the nexus of gene-by-gene (G×G) and gene-by-environment (G×E) interactions that sustain life. Here we use a Drosophila model of mitonuclear genetic interactions to explore the notion that mitochondria are environments for the nuclear genome, and vice versa. We construct factorial combinations of mtDNA and nuclear chromosomes to test for epistatic interactions (G×G), and expose these mitonuclear genotypes to altered dietary environments to examine G×E interactions. We use development time and genome-wide RNAseq analyses to assess the relative contributions of mtDNA, nuclear chromosomes, and environmental effects on these traits (mitonuclear G×G×E). We show that the nuclear transcriptional response to alternative mitochondrial "environments" (G×G) has significant overlap with the transcriptional response of mitonuclear genotypes to altered dietary environments. These analyses point to specific transcription factors (e.g., giant) that mediated these interactions, and identified coexpressed modules of genes that may account for the overlap in differentially expressed genes. Roughly 20% of the transcriptome includes G×G genes that are concordant with G×E genes, suggesting that mitonuclear interactions are part of an organism's environment.
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Affiliation(s)
- David M Rand
- Department of Ecology, Evolution and Organismal Biology, Brown University, 80 Waterman Street, Providence, Rhode Island 02912, USA
| | - James A Mossman
- Department of Ecology, Evolution and Organismal Biology, Brown University, 80 Waterman Street, Providence, Rhode Island 02912, USA
| | - Adam N Spierer
- Department of Ecology, Evolution and Organismal Biology, Brown University, 80 Waterman Street, Providence, Rhode Island 02912, USA
| | - John A Santiago
- Department of Molecular Biology, Cellular Biology, and Biochemistry, Brown University, 80 Waterman Street, Providence, Rhode Island 02912, USA
- Department of Pathology and Laboratory Medicine, Brown University, 80 Waterman Street, Providence, Rhode Island 02912, USA
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31
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Tyagi S, Chan EC, Barker D, McElduff P, Taylor KA, Riveros C, Singh E, Smith R. Transcriptomic analysis reveals myometrial topologically associated domains linked to onset of human term labor. Mol Hum Reprod 2022; 28:6527642. [PMID: 35150271 PMCID: PMC8903000 DOI: 10.1093/molehr/gaac003] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2021] [Revised: 01/10/2022] [Indexed: 11/13/2022] Open
Abstract
Changes in cell phenotype are thought to occur through the expression of groups of co-regulated genes within topologically associated domains (TADs). In this paper we allocate genes expressed within the myometrium of the human uterus during the onset of term labor into TADs. Transformation of the myometrial cells of the uterus into a contractile phenotype during term human labor is the result of a complex interaction of different epigenomic and genomic layers. Recent work suggests that the transcription factor RELA lies at the top of this regulatory network. Using deep RNA sequencing (RNAseq) analysis of myometrial samples (n = 16) obtained at term from women undergoing Caesarean section prior to or after the onset of labor we have identified evidence for how other gene expression regulatory elements interact with transcription factors in the labor phenotype transition. Gene set enrichment analysis of our RNAseq data identified three modules of enriched genes (M1, M2 and M3), which in gene ontology studies are linked to matrix degradation, smooth muscle and immune gene signatures, respectively. These genes were predominantly located within chromosomal TADs suggesting co-regulation of expression. Our transcriptomic analysis also identified significant differences in the expression of long non-coding RNAs (lncRNA), microRNAs (miRNA) and transcription factors that were predicted to target genes within the TADs. Additionally, network analysis revealed 15 new lncRNA (MCM3AP-AS1, TUG1, MIR29B2CHG, HCG18, LINC00963, KCNQ1OT1, NEAT1, HELLPAR, SNHG16, NUTM2B-AS1, MALAT1, PSMA3-AS1, GABPB1-AS1, NORAD, NKILA) and four miRNA (mir-145, mir-223, mir-let-7a, mir-132) as top gene hubs with three transcription factors (NFKB1, RELA, ESR1) as master regulators. Together, these factors are likely to be involved in co-regulatory networks driving a myometrial transformation to generate an estrogen sensitive phenotype. We conclude that lncRNA and miRNA targeting the estrogen receptor 1 and nuclear factor kappa B pathways play a key role in the initiation of human labor. For the first time we perform an integrative analysis to present a multi-level genomic signature made of mRNA, ncRNA and transcription factors in the myometrium for spontaneous term labor.
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Affiliation(s)
- Sonika Tyagi
- Central Clinical School, Monash University and the Alfred Hospital, Melbourne, VIC, Australia
| | - Eng-Cheng Chan
- Mothers and Babies Research Centre, HMRI University of Newcastle, NSW, Australia
| | | | | | - Kelly A Taylor
- Mothers and Babies Research Centre, HMRI University of Newcastle, NSW, Australia
| | | | - Esha Singh
- Department of Biotechnology and Biochemical Engineering, Indian Institute of Technology, New Delhi, India
| | - Roger Smith
- Mothers and Babies Research Centre, HMRI University of Newcastle, NSW, Australia.,University of Newcastle, Newcastle, NSW, Australia
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32
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PBX1 attenuates 6-OHDA-induced oxidative stress and apoptosis and affects PINK1/PARKIN expression in dopaminergic neurons via FOXA1. Cytotechnology 2022; 74:217-229. [PMID: 35464170 PMCID: PMC8975925 DOI: 10.1007/s10616-021-00518-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Accepted: 12/31/2021] [Indexed: 11/03/2022] Open
Abstract
PBX1 expression has been found to be significantly reduced in nigrostriatal neurons of PD patients, but the effect of PBX1 on ROS and apoptosis in nigrostriatal dopamine neurons is not yet known. This paper aimed to explore whether PBX1 could be involved in the development of PD. The construction of the in vitro PD model was followed by the determination of PBX1 expression. Then, PBX1 was overexpressed to observe the changes in the cell viability, TH expression, oxidative stress and apoptosis of the model. The mitochondrial membrane potential analysis and detection of PINK1/parkin expression were also conducted. To observe whether FOXA1 was involved in the mechanism, its expression was measured, and its association with PBX1 was determined. Subsequently, FOXA1 was silenced to observe whether PBX1 did effects on dopaminergic neuron via FOXA1. PBX1 attenuates 6-OHDA-induced dopaminergic neuronal cell injury and oxidative stress, and apoptosis. Its overexpression ameliorates mitochondrial dysfunction in dopaminergic neurons and upregulates the expression of PINK1/parkin. PBX1 could combine with FOXA1 and affects 6-OHDA-induced dopaminergic neuronal damage and regulates PINK1/PARKIN expression via FOXA1. To conclude, PBX1 attenuates 6-OHDA-induced oxidative stress and apoptosis in dopaminergic neurons, and affected PINK1/PARKIN expression via FOXA1, which indicates the great potential of the PBX1 in prevention against PD.
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33
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Castro-Mondragon JA, Riudavets-Puig R, Rauluseviciute I, Berhanu Lemma R, Turchi L, Blanc-Mathieu R, Lucas J, Boddie P, Khan A, Manosalva Pérez N, Fornes O, Leung T, Aguirre A, Hammal F, Schmelter D, Baranasic D, Ballester B, Sandelin A, Lenhard B, Vandepoele K, Wasserman WW, Parcy F, Mathelier A. JASPAR 2022: the 9th release of the open-access database of transcription factor binding profiles. Nucleic Acids Res 2022; 50:D165-D173. [PMID: 34850907 PMCID: PMC8728201 DOI: 10.1093/nar/gkab1113] [Citation(s) in RCA: 860] [Impact Index Per Article: 430.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Revised: 10/20/2021] [Accepted: 10/22/2021] [Indexed: 12/18/2022] Open
Abstract
JASPAR (http://jaspar.genereg.net/) is an open-access database containing manually curated, non-redundant transcription factor (TF) binding profiles for TFs across six taxonomic groups. In this 9th release, we expanded the CORE collection with 341 new profiles (148 for plants, 101 for vertebrates, 85 for urochordates, and 7 for insects), which corresponds to a 19% expansion over the previous release. We added 298 new profiles to the Unvalidated collection when no orthogonal evidence was found in the literature. All the profiles were clustered to provide familial binding profiles for each taxonomic group. Moreover, we revised the structural classification of DNA binding domains to consider plant-specific TFs. This release introduces word clouds to represent the scientific knowledge associated with each TF. We updated the genome tracks of TFBSs predicted with JASPAR profiles in eight organisms; the human and mouse TFBS predictions can be visualized as native tracks in the UCSC Genome Browser. Finally, we provide a new tool to perform JASPAR TFBS enrichment analysis in user-provided genomic regions. All the data is accessible through the JASPAR website, its associated RESTful API, the R/Bioconductor data package, and a new Python package, pyJASPAR, that facilitates serverless access to the data.
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Affiliation(s)
- Jaime A Castro-Mondragon
- Centre for Molecular Medicine Norway (NCMM), Nordic EMBL Partnership, University of Oslo, 0318 Oslo, Norway
| | - Rafael Riudavets-Puig
- Centre for Molecular Medicine Norway (NCMM), Nordic EMBL Partnership, University of Oslo, 0318 Oslo, Norway
| | - Ieva Rauluseviciute
- Centre for Molecular Medicine Norway (NCMM), Nordic EMBL Partnership, University of Oslo, 0318 Oslo, Norway
| | - Roza Berhanu Lemma
- Centre for Molecular Medicine Norway (NCMM), Nordic EMBL Partnership, University of Oslo, 0318 Oslo, Norway
| | - Laura Turchi
- Laboratoire Physiologie Cellulaire et Végétale, Univ. Grenoble Alpes, CNRS, CEA, INRAE, IRIG-DBSCI-LPCV, 17 avenue des martyrsF-38054, Grenoble, France
| | - Romain Blanc-Mathieu
- Laboratoire Physiologie Cellulaire et Végétale, Univ. Grenoble Alpes, CNRS, CEA, INRAE, IRIG-DBSCI-LPCV, 17 avenue des martyrsF-38054, Grenoble, France
| | - Jeremy Lucas
- Laboratoire Physiologie Cellulaire et Végétale, Univ. Grenoble Alpes, CNRS, CEA, INRAE, IRIG-DBSCI-LPCV, 17 avenue des martyrsF-38054, Grenoble, France
| | - Paul Boddie
- Centre for Molecular Medicine Norway (NCMM), Nordic EMBL Partnership, University of Oslo, 0318 Oslo, Norway
| | - Aziz Khan
- Stanford Cancer Institute, Stanford University School of Medicine, Stanford, CA94305, USA
| | - Nicolás Manosalva Pérez
- Department of Plant Biotechnology and Bioinformatics, Ghent University, Technologiepark 71, 9052 Ghent, Belgium
- VIB Center for Plant Systems Biology, Technologiepark 71, 9052 Ghent, Belgium
| | - Oriol Fornes
- Centre for Molecular Medicine and Therapeutics, Department of Medical Genetics, BC Children's Hospital Research Institute, University of British Columbia, 950 W 28th Ave, Vancouver, BC V5Z 4H4, Canada
| | - Tiffany Y Leung
- Centre for Molecular Medicine and Therapeutics, Department of Medical Genetics, BC Children's Hospital Research Institute, University of British Columbia, 950 W 28th Ave, Vancouver, BC V5Z 4H4, Canada
| | - Alejandro Aguirre
- Centre for Molecular Medicine and Therapeutics, Department of Medical Genetics, BC Children's Hospital Research Institute, University of British Columbia, 950 W 28th Ave, Vancouver, BC V5Z 4H4, Canada
| | | | - Daniel Schmelter
- UCSC Genome Browser, University of California Santa Cruz, Santa Cruz, CA95060, USA
| | - Damir Baranasic
- MRC London Institute of Medical Sciences, Du Cane Road, London, W12 0NN, UK
- Institute of Clinical Sciences, Faculty of Medicine, Imperial College London, Hammersmith Hospital Campus, Du Cane Road, London W12 0NN, UK
| | | | - Albin Sandelin
- The Bioinformatics Centre, Department of Biology & Biotech Research and Innovation Centre, University of Copenhagen, Ole Maaloes Vej 5, DK2200 Copenhagen N, Denmark
| | - Boris Lenhard
- MRC London Institute of Medical Sciences, Du Cane Road, London, W12 0NN, UK
- Institute of Clinical Sciences, Faculty of Medicine, Imperial College London, Hammersmith Hospital Campus, Du Cane Road, London W12 0NN, UK
| | - Klaas Vandepoele
- Department of Plant Biotechnology and Bioinformatics, Ghent University, Technologiepark 71, 9052 Ghent, Belgium
- VIB Center for Plant Systems Biology, Technologiepark 71, 9052 Ghent, Belgium
- Bioinformatics Institute Ghent, Ghent University, Technologiepark 71, 9052 Ghent, Belgium
| | - Wyeth W Wasserman
- Centre for Molecular Medicine and Therapeutics, Department of Medical Genetics, BC Children's Hospital Research Institute, University of British Columbia, 950 W 28th Ave, Vancouver, BC V5Z 4H4, Canada
| | - François Parcy
- Laboratoire Physiologie Cellulaire et Végétale, Univ. Grenoble Alpes, CNRS, CEA, INRAE, IRIG-DBSCI-LPCV, 17 avenue des martyrsF-38054, Grenoble, France
| | - Anthony Mathelier
- Centre for Molecular Medicine Norway (NCMM), Nordic EMBL Partnership, University of Oslo, 0318 Oslo, Norway
- Department of Medical Genetics, Institute of Clinical Medicine, University of Oslo and Oslo University Hospital, Oslo, Norway
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34
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Transcriptomic adaptation during skeletal muscle habituation to eccentric or concentric exercise training. Sci Rep 2021; 11:23930. [PMID: 34907264 PMCID: PMC8671437 DOI: 10.1038/s41598-021-03393-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2021] [Accepted: 11/19/2021] [Indexed: 12/20/2022] Open
Abstract
Eccentric (ECC) and concentric (CON) contractions induce distinct muscle remodelling patterns that manifest early during exercise training, the causes of which remain unclear. We examined molecular signatures of early contraction mode-specific muscle adaptation via transcriptome-wide network and secretome analyses during 2 weeks of ECC- versus CON-specific (downhill versus uphill running) exercise training (exercise 'habituation'). Despite habituation attenuating total numbers of exercise-induced genes, functional gene-level profiles of untrained ECC or CON were largely unaltered post-habituation. Network analysis revealed 11 ECC-specific modules, including upregulated extracellular matrix and immune profiles plus downregulated mitochondrial pathways following untrained ECC. Of 3 CON-unique modules, 2 were ribosome-related and downregulated post-habituation. Across training, 376 ECC-specific and 110 CON-specific hub genes were identified, plus 45 predicted transcription factors. Secreted factors were enriched in 3 ECC- and/or CON-responsive modules, with all 3 also being under the predicted transcriptional control of SP1 and KLF4. Of 34 candidate myokine hubs, 1 was also predicted to have elevated expression in skeletal muscle versus other tissues: THBS4, of a secretome-enriched module upregulated after untrained ECC. In conclusion, distinct untrained ECC and CON transcriptional responses are dampened after habituation without substantially shifting molecular functional profiles, providing new mechanistic candidates into contraction-mode specific muscle regulation.
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Cerboni S, Marques-Ladeira S, Manel N. Virus-stimulated Dendritic Cells Elicit a T Antiviral Transcriptional Signature in Human CD4+ Lymphocytes. J Mol Biol 2021; 434:167389. [PMID: 34883114 DOI: 10.1016/j.jmb.2021.167389] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2021] [Revised: 11/25/2021] [Accepted: 11/29/2021] [Indexed: 11/25/2022]
Abstract
Dendritic cells (DCs) play a pivotal role in the functional differentiation of CD4+ T cells in response to pathogens. In CD4+ T cells, HIV-1 replicates efficiently, while HIV-2, a related virus of reduced pathogenicity, is better controlled. How the DC response to HIV-1 vs HIV-2 contributes to programming an antiviral state in CD4+ T cells is not known. Here, we identify a transcriptional signature associated with progressive resistance to HIV infection in CD4+ T cells. We developed a model of naïve CD4+ T cell priming by DCs stimulated with a panel of seven viruses or synthetic ligands for the viral nucleic acid sensors cGAS and TLRs. DCs produced a cytokine response to HIV-2 infection more similar to the response to cGAS ligands than TLR ligands. In response to these signals, naive CD4+ T cells acquired a gradual antiviral resistance to subsequent HIV infection. The antiviral state was concomitant with the induction of the TH1 cytokine IFNγ and the type I interferon-stimulated gene (ISG) MX1, while the TFH cytokine IL-21 was not increased. By performing a transcriptional network analysis in T cells, we identified five distinct gene modules with characteristic ISG, TH1, TFH, IFN-I and proliferative signatures. Finally, we leverage this module to assemble a T antiviral signature of 404 genes that correlate with the antiviral state in T cells. Altogether, the study illuminates the programming of the antiviral state in T cells. The T antiviral gene signature in human CD4+ lymphocytes constitutes a resource for genetic screens and genomics analysis.
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Affiliation(s)
- Silvia Cerboni
- Institut Curie, PSL Research University, INSERM U932, Paris, France
| | | | - Nicolas Manel
- Institut Curie, PSL Research University, INSERM U932, Paris, France.
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Milanesi E, Dobre M, Cucos CA, Rojo AI, Jiménez-Villegas J, Capetillo-Zarate E, Matute C, Piñol-Ripoll G, Manda G, Cuadrado A. Whole Blood Expression Pattern of Inflammation and Redox Genes in Mild Alzheimer's Disease. J Inflamm Res 2021; 14:6085-6102. [PMID: 34848989 PMCID: PMC8612672 DOI: 10.2147/jir.s334337] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2021] [Accepted: 09/29/2021] [Indexed: 12/21/2022] Open
Abstract
Background Although Alzheimer’s disease (AD) is associated with alterations of the central nervous system, this disease has an echo in blood that might represent a valuable source of biomarkers for improved diagnosis, prognosis and for monitoring drug response. Methods We performed a targeted transcriptomics study on 38 mild Alzheimer’s disease (AD) patients and 38 matched controls for evaluating the expression levels of 136 inflammation and 84 redox genes in whole blood. Patients were diagnosed as mild AD based on altered levels of total TAU, phospho-TAU and Abeta(1–42) in cerebrospinal fluid, and Abeta(1–40), Abeta(1–42) and total TAU levels in plasma. Whenever possible, blood and brain comparisons were made using public datasets. Results We found 48 inflammation and 34 redox genes differentially expressed in the blood of AD patients vs controls (FC >1.5, p < 0.01), out of which 22 pro-inflammatory and 12 redox genes exhibited FC >2 and p < 0.001. Receiver operating characteristic (ROC) analysis identified nine inflammation and seven redox genes that discriminated between AD patients and controls (area under the curve >0.9). Correlations of the dysregulated inflammation and redox transcripts indicated that RELA may regulate several redox genes including DUOX1 and GSR. Based on the gene expression profile, we have found that the master regulators of inflammation and redox homeostasis, NFκB and NRF2, were significantly disturbed in the blood of AD patients, as well as several zinc finger and helix-loop-helix transcription factors. Conclusion The selected inflammation and redox genes might be useful biomarkers for monitoring anti-inflammatory therapy in mild AD.
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Affiliation(s)
- Elena Milanesi
- "Victor Babes" National Institute of Pathology, Bucharest, 050096, Romania
| | - Maria Dobre
- "Victor Babes" National Institute of Pathology, Bucharest, 050096, Romania
| | | | - Ana I Rojo
- Department of Endocrine Physiology and Nervous System, Instituto de Investigaciones Biomédicas "Alberto Sols" UAM-CSIC, Madrid, 28029, Spain.,Department of Biochemistry, Faculty of Medicine, Autonomous University of Madrid, Madrid, 28049, Spain.,Neuroscience Section, Instituto de Investigación Sanitaria La Paz (IDIPAZ), Madrid, 28046, Spain.,Centro de Investigación Biomédica en Red Sobre Enfermedades Neurodegenerativas (CIBERNED), ISCIII, Madrid, 28031, Spain
| | - José Jiménez-Villegas
- Department of Endocrine Physiology and Nervous System, Instituto de Investigaciones Biomédicas "Alberto Sols" UAM-CSIC, Madrid, 28029, Spain.,Department of Biochemistry, Faculty of Medicine, Autonomous University of Madrid, Madrid, 28049, Spain
| | - Estibaliz Capetillo-Zarate
- Centro de Investigación Biomédica en Red Sobre Enfermedades Neurodegenerativas (CIBERNED), ISCIII, Madrid, 28031, Spain.,IKERBASQUE, Basque Foundation for Science, Bilbao, 48009, Spain.,Department of Neuroscience, University of the Basque Country UPV/EHU, Achucarro Basque Center for Neuroscience, Leioa, Spain
| | - Carlos Matute
- IKERBASQUE, Basque Foundation for Science, Bilbao, 48009, Spain.,Department of Neuroscience, University of the Basque Country UPV/EHU, Achucarro Basque Center for Neuroscience, Leioa, Spain
| | - Gerard Piñol-Ripoll
- Unitat Trastons Cognitius, Hospital Universitari Santa Maria-IRB Leida, Lleida, 25198, Spain
| | - Gina Manda
- "Victor Babes" National Institute of Pathology, Bucharest, 050096, Romania
| | - Antonio Cuadrado
- "Victor Babes" National Institute of Pathology, Bucharest, 050096, Romania.,Department of Endocrine Physiology and Nervous System, Instituto de Investigaciones Biomédicas "Alberto Sols" UAM-CSIC, Madrid, 28029, Spain.,Department of Biochemistry, Faculty of Medicine, Autonomous University of Madrid, Madrid, 28049, Spain.,Neuroscience Section, Instituto de Investigación Sanitaria La Paz (IDIPAZ), Madrid, 28046, Spain.,Centro de Investigación Biomédica en Red Sobre Enfermedades Neurodegenerativas (CIBERNED), ISCIII, Madrid, 28031, Spain
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Lowell JA, O’Neill N, Danzi MC, Al-Ali H, Bixby JL, Lemmon VP. Phenotypic Screening Following Transcriptomic Deconvolution to Identify Transcription Factors Mediating Axon Growth Induced by a Kinase Inhibitor. SLAS DISCOVERY : ADVANCING LIFE SCIENCES R & D 2021; 26:1337-1354. [PMID: 34218704 PMCID: PMC10509783 DOI: 10.1177/24725552211026270] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
After injury to the central nervous system (CNS), both neuron-intrinsic limitations on regenerative responses and inhibitory factors in the injured CNS environment restrict regenerative axon growth. Instances of successful axon regrowth offer opportunities to identify features that differentiate these situations from that of the normal adult CNS. One such opportunity is provided by the kinase inhibitor RO48, which dramatically enhances neurite outgrowth of neurons in vitro and substantially increased contralateral sprouting of corticospinal tract neurons when infused intraventricularly following unilateral pyramidotomy. The authors present here a transcriptomic deconvolution of RO48-associated axon growth, with the goal of identifying transcriptional regulators associated with axon growth in the CNS. Through the use of RNA sequencing (RNA-seq) and transcription factor binding site enrichment analysis, the authors identified a list of transcription factors putatively driving differential gene expression during RO48-induced neurite outgrowth of rat hippocampal neurons in vitro. The 82 transcription factor motifs identified in this way included some with known association to axon growth regulation, such as Jun, Klf4, Myc, Atf4, Stat3, and Nfatc2, and many with no known association to axon growth. A phenotypic loss-of-function screen was carried out to evaluate these transcription factors for their roles in neurite outgrowth; this screen identified several potential outgrowth regulators. Subsequent validation suggests that the Forkhead box (Fox) family transcription factor Foxp2 restricts neurite outgrowth, while FoxO subfamily members Foxo1 and Foxo3a promote neurite outgrowth. The authors' combined transcriptomic-phenotypic screening strategy therefore allowed identification of novel transcriptional regulators of neurite outgrowth downstream of a multitarget kinase inhibitor.
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Affiliation(s)
- Jeffrey A. Lowell
- Miami Project to Cure Paralysis and University of Miami Miller School of Medicine, Miami, FL, USA
| | - Nicholas O’Neill
- Miami Project to Cure Paralysis and University of Miami Miller School of Medicine, Miami, FL, USA
| | - Matt C. Danzi
- Department of Neurological Surgery, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Hassan Al-Ali
- Miami Project to Cure Paralysis and University of Miami Miller School of Medicine, Miami, FL, USA
- Department of Molecular and Cellular Pharmacology, University of Miami Miller School of Medicine, Miami, FL, USA
- Department of Medicine and Peggy & Harold Katz Family Drug Discovery Center, University of Miami Miller School of Medicine, Miami, FL, USA
- Sylvester Comprehensive Cancer Center, University of Miami Miller School of Medicine, Miami, FL, USA
| | - John L. Bixby
- Miami Project to Cure Paralysis and University of Miami Miller School of Medicine, Miami, FL, USA
- Department of Molecular and Cellular Pharmacology, University of Miami Miller School of Medicine, Miami, FL, USA
- Sylvester Comprehensive Cancer Center, University of Miami Miller School of Medicine, Miami, FL, USA
- Dr. John T. Macdonald Foundation Department of Human Genetics and John P. Hussman Institute for Human Genomics, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Vance P. Lemmon
- Miami Project to Cure Paralysis and University of Miami Miller School of Medicine, Miami, FL, USA
- Department of Molecular and Cellular Pharmacology, University of Miami Miller School of Medicine, Miami, FL, USA
- Sylvester Comprehensive Cancer Center, University of Miami Miller School of Medicine, Miami, FL, USA
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Sanhueza Salas LF, García-Venzor A, Beltramone N, Capurro C, Toiber D, Silberman DM. Metabolic Imbalance Effect on Retinal Müller Glial Cells Reprogramming Capacity: Involvement of Histone Deacetylase SIRT6. Front Genet 2021; 12:769723. [PMID: 34804128 PMCID: PMC8599966 DOI: 10.3389/fgene.2021.769723] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Accepted: 10/15/2021] [Indexed: 12/13/2022] Open
Abstract
Retinal Müller glial cells (MGs) are among the first to demonstrate metabolic changes during retinal disease and are a potential source of regenerative cells. In response to a harmful stimulus, they can dedifferentiate acquiring neural stem cells properties, proliferate and migrate to the damaged retinal layer and differentiate into lost neurons. However, it is not yet known how this reprogramming process is regulated in mammals. Since glucose and oxygen are important regulatory elements that may help directing stem cell fate, we aimed to study the effect of glucose variations and oxidative stress in Müller cells reprogramming capacity and analyze the participation the histone deacetylase SIRT6, as an epigenetic modulator of this process. We found that the combination of high glucose and oxidative stress induced a decrease in the levels of the marker glutamine synthetase, and an increase in the migration capacity of the cells suggesting that these experimental conditions could induce some degree of dedifferentiation and favor the migration ability. High glucose induced an increase in the levels of the pluripotent factor SOX9 and a decrease in SIRT6 levels accompanied by the increase in the acetylation levels of H3K9. Inhibiting SIRT6 expression by siRNA rendered an increase in SOX9 levels. We also determined SOX9 levels in retinas from mice with a conditional deletion of SIRT6 in the CNS. To further understand the mechanisms that regulate MGs response under metabolic impaired conditions, we evaluated the gene expression profile and performed Gene Ontology enrichment analysis of Müller cells from a murine model of Diabetes. We found several differentially expressed genes and observed that the transcriptomic change involved the enrichment of genes associated with glucose metabolism, cell migration, development and pluripotency. We found that many functional categories affected in cells of diabetic animals were directly related to SIRT6 function. Transcription factors enrichment analysis allowed us to predict several factors, including SOX9, that may be involved in the modulation of the differential expression program observed in diabetic MGs. Our results underline the heterogeneity of Müller cells response and the challenge that the study of metabolic impairment in vivo represents.
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Affiliation(s)
- L Francisco Sanhueza Salas
- Centro de Estudios Farmacológicos y Botánicos (CEFYBO-UBA-CONICET), Facultad de Medicina, Universidad de Buenos Aires, Buenos Aires, Argentina
| | - Alfredo García-Venzor
- Department of Life Sciences, Ben-Gurion University of the Negev, Beer Sheva, Israel.,The Zlotowski Center for Neuroscience, Ben-Gurion University of the Negev, Beer Sheva, Israel
| | - Natalia Beltramone
- Departamento de Ciencias Fisiológicas, Laboratorio de Biomembranas, Instituto de Fisiología y Biofísica "Bernardo Houssay" (IFIBIO-HOUSSAY), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Universidad de Buenos Aires, Buenos Aires, Argentina
| | - Claudia Capurro
- Departamento de Ciencias Fisiológicas, Laboratorio de Biomembranas, Instituto de Fisiología y Biofísica "Bernardo Houssay" (IFIBIO-HOUSSAY), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Universidad de Buenos Aires, Buenos Aires, Argentina
| | - Debra Toiber
- Department of Life Sciences, Ben-Gurion University of the Negev, Beer Sheva, Israel.,The Zlotowski Center for Neuroscience, Ben-Gurion University of the Negev, Beer Sheva, Israel
| | - Dafne Magalí Silberman
- Centro de Estudios Farmacológicos y Botánicos (CEFYBO-UBA-CONICET), Facultad de Medicina, Universidad de Buenos Aires, Buenos Aires, Argentina
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Erdene‐Ochir E, Shin B, Huda MN, Lee EH, Song D, Jung C, Pan C. Characterization of endogenous promoters of GapC1 and GS for recombinant protein expression in Phaeodactylum tricornutum. Microbiologyopen 2021; 10:e1239. [PMID: 34713604 PMCID: PMC8545674 DOI: 10.1002/mbo3.1239] [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: 03/19/2021] [Accepted: 09/14/2021] [Indexed: 11/11/2022] Open
Abstract
Although diatoms have been utilized as a cellular factory to produce biopharmaceuticals, recombinant proteins, and biofuels, only a few numbers of gene promoters are available. Therefore, the development of novel endogenous promoters is essential for the production of a range of bioactive substances. Here, we characterized the activities of endogenous promoters glyceraldehyde-3-phosphate dehydrogenase (GapC1) and glutamine synthetase (GS) of Phaeodactylum tricornutum using green fluorescent protein (GFP) under different culture conditions. Compared with the widely used fucoxanthin chlorophyll-binding protein A (fcpA) promoter, the GS promoter constitutively drove the expression of GFP throughout all growth phases of P. tricornutum, regardless of culture conditions. Additionally, the GFP level driven by the GapC1 promoter was the highest at the log phase, similar to the fcpA promoter, and increased light and nitrogen-starvation conditions reduced GFP levels by inhibiting promoter activity. These results suggested that the GS promoter could be utilized as a strong endogenous promoter for the genetic engineering of P. tricornutum.
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Affiliation(s)
- Erdenedolgor Erdene‐Ochir
- Natural Product Informatics Research CenterKIST Gangneung Institute of Natural ProductsGangneungRepublic of Korea
- Division of Bio‐Medical Science and Technology, KIST SchoolKorea University of Science and TechnologySeoulRepublic of Korea
| | | | - Md Nazmul Huda
- Natural Product Informatics Research CenterKIST Gangneung Institute of Natural ProductsGangneungRepublic of Korea
- Division of Bio‐Medical Science and Technology, KIST SchoolKorea University of Science and TechnologySeoulRepublic of Korea
| | - Eun Ha Lee
- Natural Product Informatics Research CenterKIST Gangneung Institute of Natural ProductsGangneungRepublic of Korea
| | - Dae‐Geun Song
- Natural Product Informatics Research CenterKIST Gangneung Institute of Natural ProductsGangneungRepublic of Korea
| | - Choonkyun Jung
- Department of International Agricultural Technology and Crop Biotechnology Institute/GreenBio Science and TechnologySeoul National UniversityPyeongchangRepublic of Korea
- Department of Agriculture, Forestry, and Bioresources and Integrated Major in Global Smart Farm, College of Agriculture and Life SciencesSeoul National UniversitySeoulRepublic of Korea
| | - Cheol‐Ho Pan
- Natural Product Informatics Research CenterKIST Gangneung Institute of Natural ProductsGangneungRepublic of Korea
- Division of Bio‐Medical Science and Technology, KIST SchoolKorea University of Science and TechnologySeoulRepublic of Korea
- Microalgae Ask Us Co., Ltd.GangneungRepublic of Korea
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40
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Machado Almeida P, Lago Solis B, Stickley L, Feidler A, Nagoshi E. Neurofibromin 1 in mushroom body neurons mediates circadian wake drive through activating cAMP-PKA signaling. Nat Commun 2021; 12:5758. [PMID: 34599173 PMCID: PMC8486785 DOI: 10.1038/s41467-021-26031-2] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2020] [Accepted: 09/15/2021] [Indexed: 02/08/2023] Open
Abstract
Various behavioral and cognitive states exhibit circadian variations in animals across phyla including Drosophila melanogaster, in which only ~0.1% of the brain's neurons contain circadian clocks. Clock neurons transmit the timing information to a plethora of non-clock neurons via poorly understood mechanisms. Here, we address the molecular underpinning of this phenomenon by profiling circadian gene expression in non-clock neurons that constitute the mushroom body, the center of associative learning and sleep regulation. We show that circadian clocks drive rhythmic expression of hundreds of genes in mushroom body neurons, including the Neurofibromin 1 (Nf1) tumor suppressor gene and Pka-C1. Circadian clocks also drive calcium rhythms in mushroom body neurons via NF1-cAMP/PKA-C1 signaling, eliciting higher mushroom body activity during the day than at night, thereby promoting daytime wakefulness. These findings reveal the pervasive, non-cell-autonomous circadian regulation of gene expression in the brain and its role in sleep.
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Affiliation(s)
- Pedro Machado Almeida
- grid.8591.50000 0001 2322 4988Department of Genetics and Evolution, Sciences III, University of Geneva, 30 Quai Ernest-Ansermet, Geneva, 4, CH-1211 Switzerland
| | - Blanca Lago Solis
- grid.8591.50000 0001 2322 4988Department of Genetics and Evolution, Sciences III, University of Geneva, 30 Quai Ernest-Ansermet, Geneva, 4, CH-1211 Switzerland
| | - Luca Stickley
- grid.8591.50000 0001 2322 4988Department of Genetics and Evolution, Sciences III, University of Geneva, 30 Quai Ernest-Ansermet, Geneva, 4, CH-1211 Switzerland
| | - Alexis Feidler
- grid.8591.50000 0001 2322 4988Department of Genetics and Evolution, Sciences III, University of Geneva, 30 Quai Ernest-Ansermet, Geneva, 4, CH-1211 Switzerland ,grid.412750.50000 0004 1936 9166Present Address: University of Rochester School of Medicine and Dentistry, Rochester, NY USA
| | - Emi Nagoshi
- grid.8591.50000 0001 2322 4988Department of Genetics and Evolution, Sciences III, University of Geneva, 30 Quai Ernest-Ansermet, Geneva, 4, CH-1211 Switzerland
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41
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Liu S, Zhang Y, Zhang S, Qiu L, Zhang B, Han J. Identification of Hub Genes Related to Liver Metastasis of Colorectal Cancer by Integrative Analysis. Front Oncol 2021; 11:714866. [PMID: 34490113 PMCID: PMC8417325 DOI: 10.3389/fonc.2021.714866] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Accepted: 07/28/2021] [Indexed: 02/05/2023] Open
Abstract
Liver metastasis of colorectal cancer (LMCRC) severely damages patient health, causing poor prognosis and tumor relapse. Marker genes associated with LMCRC identified by previous study did not meet therapeutic demand. Therefore, it is necessary to identify new biomarkers regulating the metastasis network and screen potential drugs for future treatment. Here, we identified that cell adhesion molecules and peroxisome proliferator-activated receptor (PPAR) signaling pathway were significantly enriched by analyzing the integrated-multiple expression profiles. Moreover, analysis with robust rank aggregation approach revealed a total of 138 differentially expressed genes (DEGs), including 108 upexpressed and 30 downexpressed genes. With establishing protein-protein interaction network, we also identified the subnetwork significantly enriching the metastasis-associated hub genes including ALB, APOE, CDH2, and ORM1. ESR2, FOXO3, and SRY were determined as key transcription factors regulating hub genes. In addition, ADH-1, epigallocatechin, CHEMBL1945287, and cochinchinenin C were predicted as potential therapeutic drugs. Moreover, the antimigration capacity of ADH-1 and epigallocatechin were confirmed in CRC cell lines. In conclusion, our findings not only offer opportunities to understand metastasis mechanism but also identify potential therapeutic targets for CRC.
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Affiliation(s)
- Sicheng Liu
- Research Laboratory of Cancer Epigenetics and Genomics, Department of General Surgery, Frontiers Science Center for Disease-Related Molecular Network, State Key Laboratory of Biotherapy and National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, China
| | - Yaguang Zhang
- Research Laboratory of Cancer Epigenetics and Genomics, Department of General Surgery, Frontiers Science Center for Disease-Related Molecular Network, State Key Laboratory of Biotherapy and National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, China
| | - Su Zhang
- Research Laboratory of Cancer Epigenetics and Genomics, Department of General Surgery, Frontiers Science Center for Disease-Related Molecular Network, State Key Laboratory of Biotherapy and National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, China
| | - Lei Qiu
- Research Laboratory of Cancer Epigenetics and Genomics, Department of General Surgery, Frontiers Science Center for Disease-Related Molecular Network, State Key Laboratory of Biotherapy and National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, China
| | - Bo Zhang
- Research Laboratory of Cancer Epigenetics and Genomics, Department of General Surgery, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu, China
| | - Junhong Han
- Research Laboratory of Cancer Epigenetics and Genomics, Department of General Surgery, Frontiers Science Center for Disease-Related Molecular Network, State Key Laboratory of Biotherapy and National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, China
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Castro CM, Corciulo C, Friedman B, Li Z, Jacob S, Fenyo D, Cronstein BN. Adenosine A2A receptor null chondrocyte transcriptome resembles that of human osteoarthritic chondrocytes. Purinergic Signal 2021; 17:439-448. [PMID: 33973110 PMCID: PMC8410926 DOI: 10.1007/s11302-021-09788-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Accepted: 04/08/2021] [Indexed: 11/25/2022] Open
Abstract
Adenosine signaling plays a critical role in the maintenance of articular cartilage and may serve as a novel therapeutic for osteoarthritis (OA), a highly prevalent and morbid disease without effective therapeutics in the current market. Mice lacking adenosine A2A receptors (A2AR) develop spontaneous OA by 16 weeks of age, a finding relevant to human OA since loss of adenosine signaling due to diminished adenosine production (NT5E deficiency) also leads to development of OA in mice and humans. To better understand the mechanism by which A2AR and adenosine generation protect from OA development, we examined differential gene expression in neonatal chondrocytes from WT and A2AR null mice. Analysis of differentially expressed genes was analyzed by KEGG pathway analysis, and oPOSSUM and the flatiron database were used to identify transcription factor binding enrichment, and tissue-specific network analyses and patterns were compared to gene expression patterns in chondrocytes from patients with OA. There was a differential expression of 2211 genes (padj<0.05). Pathway enrichment analysis revealed that pro-inflammatory changes, increased metalloprotease, reduced matrix organization, and homeostasis are upregulated in A2AR null chondrocytes. Moreover, stress responses, including autophagy and HIF-1 signaling, seem to be important drivers of OA and bear marked resemblance to the human OA transcriptome. Although A2AR null mice are born with grossly intact articular cartilage, we identify here the molecular foundations for early-onset OA in these mice, further establishing their role as models for human disease and the potential use of adenosine as a treatment for human disease.
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Affiliation(s)
- Cristina M. Castro
- Department of Medicine, Beth Israel Deaconess Medical Center (BIDMC), Boston, MA USA
| | - Carmen Corciulo
- Division of Translational Medicine, NYUGSOM, New York, NY USA
- Centre for Bone and Arthritis Research, Department of Internal Medicine and Clinical Nutritional, Institute of Medicine, Sahlgrenska Academy at the University of Gothenburg, Gothenburg, Sweden
| | - Benjamin Friedman
- Department of Medicine, Division of Rheumatology, NYUGSOM, New York, NY USA
| | - Zhi Li
- Institute for Systems Genetics, NYU Langone Health, New York, NY USA
- Department of Biochemistry and Molecular Pharmacology, NYU Langone Health, New York, NY USA
| | - Samson Jacob
- Institute for Systems Genetics, NYU Langone Health, New York, NY USA
| | - David Fenyo
- Institute for Systems Genetics, NYU Langone Health, New York, NY USA
- Department of Biochemistry and Molecular Pharmacology, NYU Langone Health, New York, NY USA
| | - Bruce N. Cronstein
- Department of Medicine, Division of Rheumatology, NYUGSOM, New York, NY USA
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Sharanek A, Burban A, Hernandez-Corchado A, Madrigal A, Fatakdawala I, Najafabadi HS, Soleimani VD, Jahani-Asl A. Transcriptional control of brain tumor stem cells by a carbohydrate binding protein. Cell Rep 2021; 36:109647. [PMID: 34469737 DOI: 10.1016/j.celrep.2021.109647] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Revised: 06/29/2021] [Accepted: 08/09/2021] [Indexed: 12/12/2022] Open
Abstract
Brain tumor stem cells (BTSCs) and intratumoral heterogeneity represent major challenges in glioblastoma therapy. Here, we report that the LGALS1 gene, encoding the carbohydrate binding protein, galectin1, is a key regulator of BTSCs and glioblastoma resistance to therapy. Genetic deletion of LGALS1 alters BTSC gene expression profiles and results in downregulation of gene sets associated with the mesenchymal subtype of glioblastoma. Using a combination of pharmacological and genetic approaches, we establish that inhibition of LGALS1 signaling in BTSCs impairs self-renewal, suppresses tumorigenesis, prolongs lifespan, and improves glioblastoma response to ionizing radiation in preclinical animal models. Mechanistically, we show that LGALS1 is a direct transcriptional target of STAT3 with its expression robustly regulated by the ligand OSM. Importantly, we establish that galectin1 forms a complex with the transcription factor HOXA5 to reprogram the BTSC transcriptional landscape. Our data unravel an oncogenic signaling pathway by which the galectin1/HOXA5 complex maintains BTSCs and promotes glioblastoma.
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Affiliation(s)
- Ahmad Sharanek
- Lady Davis Institute for Medical Research, Jewish General Hospital, Montréal, QC H3T 1E2, Canada; Gerald Bronfman Department of Oncology and Division of Experimental Medicine, McGill University, Montréal, QC H4A 3T2, Canada
| | - Audrey Burban
- Lady Davis Institute for Medical Research, Jewish General Hospital, Montréal, QC H3T 1E2, Canada; Gerald Bronfman Department of Oncology and Division of Experimental Medicine, McGill University, Montréal, QC H4A 3T2, Canada
| | - Aldo Hernandez-Corchado
- Department of Human Genetics, McGill University, Montréal, QC H3A OC7, Canada; McGill Genome Centre, Montréal, QC H3A 0G1, Canada
| | - Ariel Madrigal
- Department of Human Genetics, McGill University, Montréal, QC H3A OC7, Canada; McGill Genome Centre, Montréal, QC H3A 0G1, Canada
| | - Idris Fatakdawala
- Lady Davis Institute for Medical Research, Jewish General Hospital, Montréal, QC H3T 1E2, Canada
| | - Hamed S Najafabadi
- Department of Human Genetics, McGill University, Montréal, QC H3A OC7, Canada; McGill Genome Centre, Montréal, QC H3A 0G1, Canada
| | - Vahab D Soleimani
- Lady Davis Institute for Medical Research, Jewish General Hospital, Montréal, QC H3T 1E2, Canada; Department of Human Genetics, McGill University, Montréal, QC H3A OC7, Canada
| | - Arezu Jahani-Asl
- Lady Davis Institute for Medical Research, Jewish General Hospital, Montréal, QC H3T 1E2, Canada; Gerald Bronfman Department of Oncology and Division of Experimental Medicine, McGill University, Montréal, QC H4A 3T2, Canada; Integrated program in Neuroscience, Montréal Neurological Institute, Montréal, QC H3A 2B4, Canada.
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44
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Winkley KM, Reeves WM, Veeman MT. Single-cell analysis of cell fate bifurcation in the chordate Ciona. BMC Biol 2021; 19:180. [PMID: 34465302 PMCID: PMC8408944 DOI: 10.1186/s12915-021-01122-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2021] [Accepted: 08/12/2021] [Indexed: 12/28/2022] Open
Abstract
BACKGROUND Inductive signaling interactions between different cell types are a major mechanism for the further diversification of embryonic cell fates. Most blastomeres in the model chordate Ciona robusta become restricted to a single predominant fate between the 64-cell and mid-gastrula stages. The deeply stereotyped and well-characterized Ciona embryonic cell lineages allow the transcriptomic analysis of newly established cell types very early in their divergence from sibling cell states without the pseudotime inference needed in the analysis of less synchronized cell populations. This is the first ascidian study to use droplet scRNAseq with large numbers of analyzed cells as early as the 64-cell stage when major lineages such as primary notochord first become fate restricted. RESULTS AND CONCLUSIONS We identify 59 distinct cell states, including new subregions of the b-line neural lineage and the early induction of the tail tip epidermis. We find that 34 of these cell states are directly or indirectly dependent on MAPK-mediated signaling critical to early Ciona patterning. Most of the MAPK-dependent bifurcations are canalized with the signal-induced cell fate lost upon MAPK inhibition, but the posterior endoderm is unique in being transformed into a novel state expressing some but not all markers of both endoderm and muscle. Divergent gene expression between newly bifurcated sibling cell types is dominated by upregulation in the induced cell type. The Ets family transcription factor Elk1/3/4 is uniquely upregulated in nearly all the putatively direct inductions. Elk1/3/4 upregulation together with Ets transcription factor binding site enrichment analysis enables inferences about which bifurcations are directly versus indirectly controlled by MAPK signaling. We examine notochord induction in detail and find that the transition between a Zic/Ets-mediated regulatory state and a Brachyury/FoxA-mediated regulatory state is unexpectedly late. This supports a "broad-hourglass" model of cell fate specification in which many early tissue-specific genes are induced in parallel to key tissue-specific transcriptional regulators via the same set of transcriptional inputs.
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Affiliation(s)
- Konner M Winkley
- Division of Biology, Kansas State University, Manhattan, KS, 66506, USA
| | - Wendy M Reeves
- Division of Biology, Kansas State University, Manhattan, KS, 66506, USA
| | - Michael T Veeman
- Division of Biology, Kansas State University, Manhattan, KS, 66506, USA.
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45
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Willis CRG, Gallagher IJ, Wilkinson DJ, Brook MS, Bass JJ, Phillips BE, Smith K, Etheridge T, Stokes T, McGlory C, Gorissen SHM, Szewczyk NJ, Phillips SM, Atherton PJ. Transcriptomic links to muscle mass loss and declines in cumulative muscle protein synthesis during short-term disuse in healthy younger humans. FASEB J 2021; 35:e21830. [PMID: 34342902 DOI: 10.1096/fj.202100276rr] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2021] [Revised: 07/05/2021] [Accepted: 07/19/2021] [Indexed: 12/13/2022]
Abstract
Muscle disuse leads to a rapid decline in muscle mass, with reduced muscle protein synthesis (MPS) considered the primary physiological mechanism. Here, we employed a systems biology approach to uncover molecular networks and key molecular candidates that quantitatively link to the degree of muscle atrophy and/or extent of decline in MPS during short-term disuse in humans. After consuming a bolus dose of deuterium oxide (D2 O; 3 mL.kg-1 ), eight healthy males (22 ± 2 years) underwent 4 days of unilateral lower-limb immobilization. Bilateral muscle biopsies were obtained post-intervention for RNA sequencing and D2 O-derived measurement of MPS, with thigh lean mass quantified using dual-energy X-ray absorptiometry. Application of weighted gene co-expression network analysis identified 15 distinct gene clusters ("modules") with an expression profile regulated by disuse and/or quantitatively connected to disuse-induced muscle mass or MPS changes. Module scans for candidate targets established an experimentally tractable set of candidate regulatory molecules (242 hub genes, 31 transcriptional regulators) associated with disuse-induced maladaptation, many themselves potently tied to disuse-induced reductions in muscle mass and/or MPS and, therefore, strong physiologically relevant candidates. Notably, we implicate a putative role for muscle protein breakdown-related molecular networks in impairing MPS during short-term disuse, and further establish DEPTOR (a potent mTOR inhibitor) as a critical mechanistic candidate of disuse driven MPS suppression in humans. Overall, these findings offer a strong benchmark for accelerating mechanistic understanding of short-term muscle disuse atrophy that may help expedite development of therapeutic interventions.
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Affiliation(s)
- Craig R G Willis
- Department of Sport and Health Sciences, College of Life and Environmental Sciences, University of Exeter, Exeter, UK
| | - Iain J Gallagher
- Faculty of Health Sciences and Sport, University of Stirling, Stirling, UK
| | - Daniel J Wilkinson
- MRC-Versus Arthritis Centre for Musculoskeletal Ageing Research and National Institute of Health Research, Nottingham Biomedical Research Centre, Royal Derby Hospital Centre, School of Medicine, University of Nottingham, Derby, UK
| | - Matthew S Brook
- MRC-Versus Arthritis Centre for Musculoskeletal Ageing Research and National Institute of Health Research, Nottingham Biomedical Research Centre, Royal Derby Hospital Centre, School of Medicine, University of Nottingham, Derby, UK
| | - Joseph J Bass
- MRC-Versus Arthritis Centre for Musculoskeletal Ageing Research and National Institute of Health Research, Nottingham Biomedical Research Centre, Royal Derby Hospital Centre, School of Medicine, University of Nottingham, Derby, UK
| | - Bethan E Phillips
- MRC-Versus Arthritis Centre for Musculoskeletal Ageing Research and National Institute of Health Research, Nottingham Biomedical Research Centre, Royal Derby Hospital Centre, School of Medicine, University of Nottingham, Derby, UK
| | - Kenneth Smith
- MRC-Versus Arthritis Centre for Musculoskeletal Ageing Research and National Institute of Health Research, Nottingham Biomedical Research Centre, Royal Derby Hospital Centre, School of Medicine, University of Nottingham, Derby, UK
| | - Timothy Etheridge
- Department of Sport and Health Sciences, College of Life and Environmental Sciences, University of Exeter, Exeter, UK
| | - Tanner Stokes
- Department of Kinesiology, McMaster University, Hamilton, ON, Canada
| | - Chris McGlory
- Department of Kinesiology, McMaster University, Hamilton, ON, Canada
| | | | - Nathaniel J Szewczyk
- MRC-Versus Arthritis Centre for Musculoskeletal Ageing Research and National Institute of Health Research, Nottingham Biomedical Research Centre, Royal Derby Hospital Centre, School of Medicine, University of Nottingham, Derby, UK.,Ohio Musculoskeletal and Neurological Institute (OMNI) and Department of Biomedical Sciences, Ohio University, Athens, OH, USA
| | - Stuart M Phillips
- Department of Kinesiology, McMaster University, Hamilton, ON, Canada
| | - Philip J Atherton
- MRC-Versus Arthritis Centre for Musculoskeletal Ageing Research and National Institute of Health Research, Nottingham Biomedical Research Centre, Royal Derby Hospital Centre, School of Medicine, University of Nottingham, Derby, UK
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46
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Klees S, Heinrich F, Schmitt AO, Gültas M. agReg-SNPdb: A Database of Regulatory SNPs for Agricultural Animal Species. BIOLOGY 2021; 10:790. [PMID: 34440019 PMCID: PMC8389679 DOI: 10.3390/biology10080790] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Revised: 08/12/2021] [Accepted: 08/12/2021] [Indexed: 12/13/2022]
Abstract
Transcription factors (TFs) govern transcriptional gene regulation by specifically binding to short DNA motifs, known as transcription factor binding sites (TFBSs), in regulatory regions, such as promoters. Today, it is well known that single nucleotide polymorphisms (SNPs) in TFBSs can dramatically affect the level of gene expression, since they can cause a change in the binding affinity of TFs. Such SNPs, referred to as regulatory SNPs (rSNPs), have gained attention in the life sciences due to their causality for specific traits or diseases. In this study, we present agReg-SNPdb, a database comprising rSNP data of seven agricultural and domestic animal species: cattle, pig, chicken, sheep, horse, goat, and dog. To identify the rSNPs, we constructed a bioinformatics pipeline and identified a total of 10,623,512 rSNPs, which are located within TFBSs and affect the binding affinity of putative TFs. Altogether, we implemented the first systematic analysis of SNPs in promoter regions and their impact on the binding affinity of TFs for livestock and made it usable via a web interface.
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Affiliation(s)
- Selina Klees
- Breeding Informatics Group, Department of Animal Sciences, Georg-August University, Margarethe von Wrangell-Weg 7, 37075 Göttingen, Germany; (F.H.); (A.O.S.)
- Center for Integrated Breeding Research (CiBreed), Georg-August University, Albrecht-Thaer-Weg 3, 37075 Göttingen, Germany
| | - Felix Heinrich
- Breeding Informatics Group, Department of Animal Sciences, Georg-August University, Margarethe von Wrangell-Weg 7, 37075 Göttingen, Germany; (F.H.); (A.O.S.)
| | - Armin Otto Schmitt
- Breeding Informatics Group, Department of Animal Sciences, Georg-August University, Margarethe von Wrangell-Weg 7, 37075 Göttingen, Germany; (F.H.); (A.O.S.)
- Center for Integrated Breeding Research (CiBreed), Georg-August University, Albrecht-Thaer-Weg 3, 37075 Göttingen, Germany
| | - Mehmet Gültas
- Center for Integrated Breeding Research (CiBreed), Georg-August University, Albrecht-Thaer-Weg 3, 37075 Göttingen, Germany
- Faculty of Agriculture, South Westphalia University of Applied Sciences, Lübecker Ring 2, 59494 Soest, Germany
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47
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Meiler A, Marchiano F, Haering M, Weitkunat M, Schnorrer F, Habermann BH. AnnoMiner is a new web-tool to integrate epigenetics, transcription factor occupancy and transcriptomics data to predict transcriptional regulators. Sci Rep 2021; 11:15463. [PMID: 34326396 PMCID: PMC8322331 DOI: 10.1038/s41598-021-94805-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2021] [Accepted: 07/14/2021] [Indexed: 11/23/2022] Open
Abstract
Gene expression regulation requires precise transcriptional programs, led by transcription factors in combination with epigenetic events. Recent advances in epigenomic and transcriptomic techniques provided insight into different gene regulation mechanisms. However, to date it remains challenging to understand how combinations of transcription factors together with epigenetic events control cell-type specific gene expression. We have developed the AnnoMiner web-server, an innovative and flexible tool to annotate and integrate epigenetic, and transcription factor occupancy data. First, AnnoMiner annotates user-provided peaks with gene features. Second, AnnoMiner can integrate genome binding data from two different transcriptional regulators together with gene features. Third, AnnoMiner offers to explore the transcriptional deregulation of genes nearby, or within a specified genomic region surrounding a user-provided peak. AnnoMiner’s fourth function performs transcription factor or histone modification enrichment analysis for user-provided gene lists by utilizing hundreds of public, high-quality datasets from ENCODE for the model organisms human, mouse, Drosophila and C. elegans. Thus, AnnoMiner can predict transcriptional regulators for a studied process without the strict need for chromatin data from the same process. We compared AnnoMiner to existing tools and experimentally validated several transcriptional regulators predicted by AnnoMiner to indeed contribute to muscle morphogenesis in Drosophila. AnnoMiner is freely available at http://chimborazo.ibdm.univ-mrs.fr/AnnoMiner/.
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Affiliation(s)
- Arno Meiler
- Max Planck Institute of Biochemistry, Am Klopferspitz 18, 82152, Martinsried, Germany
| | - Fabio Marchiano
- Aix-Marseille University, CNRS, IBDM UMR 7288, The Turing Centre for Living systems (CENTURI), Aix-Marseille University, Parc Scientifique de Luminy Case 907, 163, Avenue de Luminy, 13009, Marseille, France
| | - Margaux Haering
- Aix-Marseille University, CNRS, IBDM UMR 7288, The Turing Centre for Living systems (CENTURI), Aix-Marseille University, Parc Scientifique de Luminy Case 907, 163, Avenue de Luminy, 13009, Marseille, France
| | - Manuela Weitkunat
- Max Planck Institute of Biochemistry, Am Klopferspitz 18, 82152, Martinsried, Germany
| | - Frank Schnorrer
- Max Planck Institute of Biochemistry, Am Klopferspitz 18, 82152, Martinsried, Germany.,Aix-Marseille University, CNRS, IBDM UMR 7288, The Turing Centre for Living systems (CENTURI), Aix-Marseille University, Parc Scientifique de Luminy Case 907, 163, Avenue de Luminy, 13009, Marseille, France
| | - Bianca H Habermann
- Max Planck Institute of Biochemistry, Am Klopferspitz 18, 82152, Martinsried, Germany. .,Aix-Marseille University, CNRS, IBDM UMR 7288, The Turing Centre for Living systems (CENTURI), Aix-Marseille University, Parc Scientifique de Luminy Case 907, 163, Avenue de Luminy, 13009, Marseille, France.
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48
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Yuan Y, Salinas Parra N, Chen Q, Iglesias-Bartolome R. Oncogenic Hedgehog-smoothened signaling depends on YAP1-TAZ/TEAD transcription to restrain differentiation in basal cell carcinoma. J Invest Dermatol 2021; 142:65-76.e7. [PMID: 34293352 DOI: 10.1016/j.jid.2021.06.020] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Revised: 06/09/2021] [Accepted: 06/10/2021] [Indexed: 10/20/2022]
Abstract
Disruption of the transcriptional activity of the Hippo pathway members YAP1 and TAZ has become a major target for cancer treatment. However, detailed analysis of the effectivity and networks affected by YAP1/TAZ transcriptional targeting are limited. Here, we utilize TEADi, an inhibitor of the binding of YAP1 and TAZ with their main transcriptional target TEAD in a mouse model of basal cell carcinoma (BCC) to unveil the consequences of YAP1/TAZ transcriptional inhibition in cancer cells. Both TEADi and YAP1/TAZ knockdown lead to reduced proliferation and increased differentiation of mouse BCC driven by oncogenic Hedgehog-Smoothened (SmoM2) activity. While TEAD transcriptional networks were essential to inactivate differentiation in BCC, this inactivation was found to be indirect and potentially mediated through the repression of KLF4 by SNAI2. By comparing the transcriptional effects of TEADi with those caused by YAP1/TAZ depletion, we determined YAP1/TAZ TEAD-independent effects in cancer cells that impact STAT3 and NF-κB. Our results reveal the gene networks affected by targeting YAP1/TAZ-TEAD in BCC tumors and expose potential pitfalls for targeting TEAD transcription in cancer.
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Affiliation(s)
- Yao Yuan
- Laboratory of Cellular and Molecular Biology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Natalia Salinas Parra
- Laboratory of Cellular and Molecular Biology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Qianming Chen
- The Affiliated Stomatology Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Ramiro Iglesias-Bartolome
- Laboratory of Cellular and Molecular Biology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA.
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49
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Dash S, Yoder S, Mesa T, Smith A, Cen L, Eschrich S, Armaiz-Pena GN, Monteiro ANA. Effects of long-term norepinephrine treatment on normal immortalized ovarian and fallopian tube cells. Sci Rep 2021; 11:14334. [PMID: 34253763 PMCID: PMC8275603 DOI: 10.1038/s41598-021-93506-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2021] [Accepted: 06/24/2021] [Indexed: 11/08/2022] Open
Abstract
Sustained adrenergic stimulation by norepinephrine (NE) contributes to ovarian carcinoma metastasis and impairment of chemotherapy response. Although the effect of sustained NE stimulation in cancer progression is well established, less is known about its role in cancer initiation. To determine the extent to which stress hormones influence ovarian cancer initiation, we conducted a long-term (> 3 months; > 40 population doublings) experiment in which normal immortalized fallopian tube secretory (iFTSEC283) and ovarian surface epithelial (iOSE11) cell lines and their isogenic pairs containing a p53 mutation (iFTSEC283p53R175H; iOSE11p53R175H), were continuously exposed to NE (100 nM, 1 μM, 10 μM). Fallopian tube cells displayed a p53-independent increase in proliferation and colony-forming ability in response to NE, while ovarian surface epithelial cells displayed a p53-independent decrease in both assays. Fallopian tube cells with mutant p53 showed a mild loss of chromosomes and TP53 status was also a defining factor in transcriptional response of fallopian tube cells to long-term NE treatment.
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Affiliation(s)
- Sweta Dash
- Cancer Epidemiology Program, H. Lee Moffitt Cancer Center and Research Institute, Magnolia Drive, Tampa, FL, 1290233612, USA
- Cancer Biology Ph.D. Program, University of South Florida Tampa, Tampa, FL, 33612, USA
| | - Sean Yoder
- Molecular Genomics Core Facility, H. Lee Moffitt Cancer Center and Research Institute, Tampa, FL, USA
| | - Tania Mesa
- Molecular Genomics Core Facility, H. Lee Moffitt Cancer Center and Research Institute, Tampa, FL, USA
| | - Andrew Smith
- Molecular Genomics Core Facility, H. Lee Moffitt Cancer Center and Research Institute, Tampa, FL, USA
| | - Ling Cen
- Data Sharing Core, H. Lee Moffitt Cancer Center and Research Institute, Tampa, FL, USA
| | - Steven Eschrich
- Data Sharing Core, H. Lee Moffitt Cancer Center and Research Institute, Tampa, FL, USA
| | - Guillermo N Armaiz-Pena
- Department of Basic Sciences, Pharmacology Division, School of Medicine, Ponce Health Sciences University and Divisions of Cancer Biology and Women's Health, Ponce Research Institute, Ponce, PR, USA
| | - Alvaro N A Monteiro
- Cancer Epidemiology Program, H. Lee Moffitt Cancer Center and Research Institute, Magnolia Drive, Tampa, FL, 1290233612, USA.
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50
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Goodwin LR, Zapata G, Timpano S, Marenger J, Picketts DJ. Impaired SNF2L Chromatin Remodeling Prolongs Accessibility at Promoters Enriched for Fos/Jun Binding Sites and Delays Granule Neuron Differentiation. Front Mol Neurosci 2021; 14:680280. [PMID: 34295220 PMCID: PMC8290069 DOI: 10.3389/fnmol.2021.680280] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2021] [Accepted: 06/10/2021] [Indexed: 11/13/2022] Open
Abstract
Chromatin remodeling proteins utilize the energy from ATP hydrolysis to mobilize nucleosomes often creating accessibility for transcription factors within gene regulatory elements. Aberrant chromatin remodeling has diverse effects on neuroprogenitor homeostasis altering progenitor competence, proliferation, survival, or cell fate. Previous work has shown that inactivation of the ISWI genes, Smarca5 (encoding Snf2h) and Smarca1 (encoding Snf2l) have dramatic effects on brain development. Smarca5 conditional knockout mice have reduced progenitor expansion and severe forebrain hypoplasia, with a similar effect on the postnatal growth of the cerebellum. In contrast, Smarca1 mutants exhibited enlarged forebrains with delayed progenitor differentiation and increased neuronal output. Here, we utilized cerebellar granule neuron precursor (GNP) cultures from Smarca1 mutant mice (Ex6DEL) to explore the requirement for Snf2l on progenitor homeostasis. The Ex6DEL GNPs showed delayed differentiation upon plating that was not attributed to changes in the Sonic Hedgehog pathway but was associated with overexpression of numerous positive effectors of proliferation, including targets of Wnt activation. Transcriptome analysis identified increased expression of Fosb and Fosl2 while ATACseq experiments identified a large increase in chromatin accessibility at promoters many enriched for Fos/Jun binding sites. Nonetheless, the elevated proliferation index was transient and the Ex6DEL cultures initiated differentiation with a high concordance in gene expression changes to the wild type cultures. Genes specific to Ex6DEL differentiation were associated with an increased activation of the ERK signaling pathway. Taken together, this data provides the first indication of how Smarca1 mutations alter progenitor cell homeostasis and contribute to changes in brain size.
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Affiliation(s)
- Laura R Goodwin
- Regenerative Medicine Program, Ottawa Hospital Research Institute, Ottawa, ON, Canada.,Department of Biochemistry, Microbiology and Immunology, University of Ottawa, Ottawa, ON, Canada
| | - Gerardo Zapata
- Regenerative Medicine Program, Ottawa Hospital Research Institute, Ottawa, ON, Canada.,Department of Biochemistry, Microbiology and Immunology, University of Ottawa, Ottawa, ON, Canada
| | - Sara Timpano
- Regenerative Medicine Program, Ottawa Hospital Research Institute, Ottawa, ON, Canada
| | - Jacob Marenger
- Regenerative Medicine Program, Ottawa Hospital Research Institute, Ottawa, ON, Canada
| | - David J Picketts
- Regenerative Medicine Program, Ottawa Hospital Research Institute, Ottawa, ON, Canada.,Department of Biochemistry, Microbiology and Immunology, University of Ottawa, Ottawa, ON, Canada.,Cellular and Molecular Medicine, University of Ottawa, Ottawa, ON, Canada
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