1
|
Culbertson EM, Levin TC. There and back again: Discovering antiviral and antiphage defenses using deep homology. Cell Host Microbe 2024; 32:1466-1468. [PMID: 39265534 DOI: 10.1016/j.chom.2024.08.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2024] [Revised: 08/06/2024] [Accepted: 08/06/2024] [Indexed: 09/14/2024]
Abstract
Two recent studies in Cell Host & Microbe (Cury et al. and van den Berg et al.) uncover cross-kingdom links between antiphage and antiviral immune defenses. Through reciprocal computational and wet lab approaches, they each discover and experimentally validate proteins used for host immunity.
Collapse
Affiliation(s)
- Edward M Culbertson
- University of Pittsburgh, Department of Biological Sciences, Pittsburgh, PA, USA
| | - Tera C Levin
- University of Pittsburgh, Department of Biological Sciences, Pittsburgh, PA, USA.
| |
Collapse
|
2
|
Cury J, Haudiquet M, Hernandez Trejo V, Mordret E, Hanouna A, Rotival M, Tesson F, Bonhomme D, Ofir G, Quintana-Murci L, Benaroch P, Poirier EZ, Bernheim A. Conservation of antiviral systems across domains of life reveals immune genes in humans. Cell Host Microbe 2024; 32:1594-1607.e5. [PMID: 39208803 DOI: 10.1016/j.chom.2024.08.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Revised: 06/27/2024] [Accepted: 08/01/2024] [Indexed: 09/04/2024]
Abstract
Deciphering the immune organization of eukaryotes is important for human health and for understanding ecosystems. The recent discovery of antiphage systems revealed that various eukaryotic immune proteins originate from prokaryotic antiphage systems. However, whether bacterial antiphage proteins can illuminate immune organization in eukaryotes remains unexplored. Here, we use a phylogeny-driven approach to uncover eukaryotic immune proteins by searching for homologs of bacterial antiphage systems. We demonstrate that proteins displaying sequence similarity with recently discovered antiphage systems are widespread in eukaryotes and maintain a role in human immunity. Two eukaryotic proteins of the anti-transposon piRNA pathway are evolutionarily linked to the antiphage system Mokosh. Additionally, human GTPases of immunity-associated proteins (GIMAPs) as well as two genes encoded in microsynteny, FHAD1 and CTRC, are respectively related to the Eleos and Lamassu prokaryotic systems and exhibit antiviral activity. Our work illustrates how comparative genomics of immune mechanisms can uncover defense genes in eukaryotes.
Collapse
Affiliation(s)
- Jean Cury
- Molecular Diversity of Microbes, Institut Pasteur, CNRS UMR3525, INSERM U1284, Université Paris-Cité, 75015 Paris, France
| | - Matthieu Haudiquet
- Molecular Diversity of Microbes, Institut Pasteur, CNRS UMR3525, INSERM U1284, Université Paris-Cité, 75015 Paris, France; Innate Immunity in Physiology and Cancer Team, Institut Curie, PSL Research University, INSERM U932, 75005 Paris, France
| | - Veronica Hernandez Trejo
- Innate Immunity in Physiology and Cancer Team, Institut Curie, PSL Research University, INSERM U932, 75005 Paris, France
| | - Ernest Mordret
- Molecular Diversity of Microbes, Institut Pasteur, CNRS UMR3525, INSERM U1284, Université Paris-Cité, 75015 Paris, France
| | - Anael Hanouna
- Myeloid Cells and Immunity Team, Institut Curie, PSL Research University, INSERM U932, 75005 Paris, France
| | - Maxime Rotival
- Human Evolutionary Genetics Unit, Institut Pasteur, Université Paris Cité, CNRS UMR2000, 75015 Paris, France
| | - Florian Tesson
- Molecular Diversity of Microbes, Institut Pasteur, CNRS UMR3525, INSERM U1284, Université Paris-Cité, 75015 Paris, France
| | - Delphine Bonhomme
- Innate Immunity in Physiology and Cancer Team, Institut Curie, PSL Research University, INSERM U932, 75005 Paris, France
| | - Gal Ofir
- Department of Molecular Biology, Max Planck Institute for Biology Tübingen, 72076 Tübingen, Germany
| | - Lluis Quintana-Murci
- Human Evolutionary Genetics Unit, Institut Pasteur, Université Paris Cité, CNRS UMR2000, 75015 Paris, France; Human Genomics and Evolution, Collège de France, 75005 Paris, France
| | - Philippe Benaroch
- Myeloid Cells and Immunity Team, Institut Curie, PSL Research University, INSERM U932, 75005 Paris, France
| | - Enzo Z Poirier
- Innate Immunity in Physiology and Cancer Team, Institut Curie, PSL Research University, INSERM U932, 75005 Paris, France.
| | - Aude Bernheim
- Molecular Diversity of Microbes, Institut Pasteur, CNRS UMR3525, INSERM U1284, Université Paris-Cité, 75015 Paris, France.
| |
Collapse
|
3
|
Shomar H, Georjon H, Feng Y, Olympio B, Guillaume M, Tesson F, Cury J, Wu F, Bernheim A. Viperin immunity evolved across the tree of life through serial innovations on a conserved scaffold. Nat Ecol Evol 2024; 8:1667-1679. [PMID: 38965412 DOI: 10.1038/s41559-024-02463-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2024] [Accepted: 06/05/2024] [Indexed: 07/06/2024]
Abstract
Evolutionary arms races between cells and viruses drive the rapid diversification of antiviral genes in diverse life forms. Recent discoveries have revealed the existence of immune genes that are shared between prokaryotes and eukaryotes and show molecular and mechanistic similarities in their response to viruses. However, the evolutionary dynamics underlying the conservation and adaptation of these antiviral genes remain mostly unexplored. Here, we show that viperins constitute a highly conserved family of immune genes across diverse prokaryotes and eukaryotes and identify mechanisms by which they diversified in eukaryotes. Our findings indicate that viperins are enriched in Asgard archaea and widely distributed in all major eukaryotic clades, suggesting their presence in the last eukaryotic common ancestor and their acquisition in eukaryotes from an archaeal lineage. We show that viperins maintain their immune function by producing antiviral nucleotide analogues and demonstrate that eukaryotic viperins diversified through serial innovations on the viperin gene, such as the emergence and selection of substrate specificity towards pyrimidine nucleotides, and through partnerships with genes maintained through genetic linkage, notably with nucleotide kinases. These findings unveil biochemical and genomic transitions underlying the adaptation of immune genes shared by prokaryotes and eukaryotes. Our study paves the way for further understanding of the conservation of immunity across domains of life.
Collapse
Affiliation(s)
- Helena Shomar
- Institut Pasteur, Université Paris Cité, INSERM U1284, Molecular Diversity of Microbes Lab, Paris, France
| | - Héloïse Georjon
- Institut Pasteur, Université Paris Cité, INSERM U1284, Molecular Diversity of Microbes Lab, Paris, France
- Generare Bioscience, Paris, France
| | - Yanlei Feng
- School of Life Sciences, College of Science, Eastern Institute of Technology, Ningbo, China
- Hangzhou Global Scientific and Technological Innovation Center, Zhejiang University, Hangzhou, China
| | - Bismarck Olympio
- Institut Pasteur, Université Paris Cité, INSERM U1284, Molecular Diversity of Microbes Lab, Paris, France
| | - Marie Guillaume
- Institut Pasteur, Université Paris Cité, INSERM U1284, Molecular Diversity of Microbes Lab, Paris, France
| | - Florian Tesson
- Institut Pasteur, Université Paris Cité, INSERM U1284, Molecular Diversity of Microbes Lab, Paris, France
| | - Jean Cury
- Institut Pasteur, Université Paris Cité, INSERM U1284, Molecular Diversity of Microbes Lab, Paris, France
| | - Fabai Wu
- School of Life Sciences, College of Science, Eastern Institute of Technology, Ningbo, China.
| | - Aude Bernheim
- Institut Pasteur, Université Paris Cité, INSERM U1284, Molecular Diversity of Microbes Lab, Paris, France.
| |
Collapse
|
4
|
Evolutionary history of an immune protein conserved across all domains of life. Nat Ecol Evol 2024; 8:1575-1576. [PMID: 38969839 DOI: 10.1038/s41559-024-02471-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/07/2024]
|
5
|
Langley CA, Dietzen PA, Emerman M, Tenthorey JL, Malik HS. Antiviral Mx proteins have an ancient origin and widespread distribution among eukaryotes. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.08.06.606855. [PMID: 39149278 PMCID: PMC11326297 DOI: 10.1101/2024.08.06.606855] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/17/2024]
Abstract
First identified in mammals, Mx proteins are potent antivirals against a broad swathe of viruses. Mx proteins arose within the Dynamin superfamily of proteins (DSP), mediating critical cellular processes, such as endocytosis and mitochondrial, plastid, and peroxisomal dynamics. And yet, the evolutionary origins of Mx proteins are poorly understood. Using a series of phylogenomic analyses with stepwise increments in taxonomic coverage, we show that Mx proteins predate the interferon signaling system in vertebrates. Our analyses find an ancient monophyletic DSP lineage in eukaryotes that groups vertebrate and invertebrate Mx proteins with previously undescribed fungal MxF proteins, the relatively uncharacterized plant and algal Dynamin 4A/4C proteins, and representatives from several early-branching eukaryotic lineages. Thus, Mx-like proteins date back close to the origin of Eukarya. Our phylogenetic analyses also reveal that host-encoded and NCLDV (nucleocytoplasmic large DNA viruses)-encoded DSPs are interspersed in four distinct DSP lineages, indicating recurrent viral theft of host DSPs. Our analyses thus reveal an ancient history of viral and antiviral functions encoded by the Dynamin superfamily in eukaryotes.
Collapse
Affiliation(s)
- Caroline A. Langley
- Molecular and Cellular Biology Graduate Program, University of Washington, Seattle, WA
- Division of Human Biology, Fred Hutchinson Cancer Center, Seattle, WA
- Division of Basic Science, Fred Hutchinson Cancer Center, Seattle, WA
| | - Peter A. Dietzen
- Molecular and Cellular Biology Graduate Program, University of Washington, Seattle, WA
- Division of Human Biology, Fred Hutchinson Cancer Center, Seattle, WA
- Division of Basic Science, Fred Hutchinson Cancer Center, Seattle, WA
| | - Michael Emerman
- Division of Human Biology, Fred Hutchinson Cancer Center, Seattle, WA
- Division of Basic Science, Fred Hutchinson Cancer Center, Seattle, WA
| | - Jeannette L. Tenthorey
- Division of Basic Science, Fred Hutchinson Cancer Center, Seattle, WA
- Cellular Molecular Pharmacology, University of California San Francisco, San Francisco, CA
| | - Harmit S. Malik
- Division of Basic Science, Fred Hutchinson Cancer Center, Seattle, WA
- Howard Hughes Medical Institute, Fred Hutchinson Cancer Center, Seattle, WA
| |
Collapse
|
6
|
Johannesman A, Carlson NA, LeRoux M. Phages carry orphan antitoxin-like enzymes to neutralize the DarTG1 toxin-antitoxin defense system. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.07.11.602962. [PMID: 39026772 PMCID: PMC11257639 DOI: 10.1101/2024.07.11.602962] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/20/2024]
Abstract
The astounding number of anti-phage defenses encoded by bacteria is countered by an elaborate set of phage counter-defenses, though their evolutionary origins are often unknown. Here, we discover an orphan antitoxin counter-defense element in T4-like phages that can overcome the bacterial toxin-antitoxin phage defense system, DarTG1. The DarT1 toxin, an ADP-ribosyltransferase, modifies phage DNA to prevent replication while its cognate antitoxin, DarG1, is an ADP-ribosylglycohydrolase that reverses these modifications in uninfected bacteria. The orphan phage DarG1-like protein, which we term anti-DarT factor NADAR (AdfN), removes ADP-ribose modifications from phage DNA during infection thereby enabling replication in DarTG1-containing bacteria. AdfN, like DarG1, is in the NADAR superfamily of ADP-ribosylglycohydrolases found across domains of life. We find divergent NADAR proteins in unrelated phages that likewise exhibit anti-DarTG1 activity, underscoring the importance of ADP-ribosylation in bacterial-phage interactions, and revealing the function of a substantial subset of the NADAR superfamily.
Collapse
Affiliation(s)
- Anna Johannesman
- Department of Molecular Microbiology, Washington University in Saint Louis School of Medicine, Saint Louis, MO 63110, USA
| | - Nico A. Carlson
- Department of Molecular Microbiology, Washington University in Saint Louis School of Medicine, Saint Louis, MO 63110, USA
| | - Michele LeRoux
- Department of Molecular Microbiology, Washington University in Saint Louis School of Medicine, Saint Louis, MO 63110, USA
| |
Collapse
|
7
|
Bernheim A, Cury J, Poirier EZ. The immune modules conserved across the tree of life: Towards a definition of ancestral immunity. PLoS Biol 2024; 22:e3002717. [PMID: 39008452 PMCID: PMC11249213 DOI: 10.1371/journal.pbio.3002717] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/17/2024] Open
Abstract
Immune defence mechanisms exist across the tree of life in such diversity that prokaryotic antiviral responses have historically been considered unrelated to eukaryotic immunity. Mechanisms of defence in divergent eukaryotes were similarly believed to be largely clade specific. However, recent data indicate that a subset of modules (domains and proteins) from prokaryote defence systems are conserved in eukaryotes and populate many stages of innate immune pathways. In this Essay, we propose the notion of ancestral immunity, which corresponds to the set of immune modules conserved between prokaryotes and eukaryotes. After offering a typology of ancestral immunity, we speculate on the selective pressures that could have led to the differential conservation of specific immune modules across domains of life. The exploration of ancestral immunity is in its infancy and appears full of promises to illuminate immune evolution, and also to identify and decipher immune mechanisms of economic, ecological, and therapeutic importance.
Collapse
Affiliation(s)
- Aude Bernheim
- Molecular Diversity of Microbes laboratory, Institut Pasteur, CNRS UMR3525, Paris, France
| | - Jean Cury
- Molecular Diversity of Microbes laboratory, Institut Pasteur, CNRS UMR3525, Paris, France
| | - Enzo Z. Poirier
- Innate Immunity in Physiology and Cancer laboratory, Institut Curie, PSL Research University, INSERM U932, Paris, France
| |
Collapse
|
8
|
Ledvina HE, Whiteley AT. Conservation and similarity of bacterial and eukaryotic innate immunity. Nat Rev Microbiol 2024; 22:420-434. [PMID: 38418927 PMCID: PMC11389603 DOI: 10.1038/s41579-024-01017-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/24/2024] [Indexed: 03/02/2024]
Abstract
Pathogens are ubiquitous and a constant threat to their hosts, which has led to the evolution of sophisticated immune systems in bacteria, archaea and eukaryotes. Bacterial immune systems encode an astoundingly large array of antiviral (antiphage) systems, and recent investigations have identified unexpected similarities between the immune systems of bacteria and animals. In this Review, we discuss advances in our understanding of the bacterial innate immune system and highlight the components, strategies and pathogen restriction mechanisms conserved between bacteria and eukaryotes. We summarize evidence for the hypothesis that components of the human immune system originated in bacteria, where they first evolved to defend against phages. Further, we discuss shared mechanisms that pathogens use to overcome host immune pathways and unexpected similarities between bacterial immune systems and interbacterial antagonism. Understanding the shared evolutionary path of immune components across domains of life and the successful strategies that organisms have arrived at to restrict their pathogens will enable future development of therapeutics that activate the human immune system for the precise treatment of disease.
Collapse
Affiliation(s)
- Hannah E Ledvina
- Department of Biochemistry, University of Colorado Boulder, Boulder, CO, USA
| | - Aaron T Whiteley
- Department of Biochemistry, University of Colorado Boulder, Boulder, CO, USA.
| |
Collapse
|
9
|
Kumar V, Stewart JH. cGLRs Join Their Cousins of Pattern Recognition Receptor Family to Regulate Immune Homeostasis. Int J Mol Sci 2024; 25:1828. [PMID: 38339107 PMCID: PMC10855445 DOI: 10.3390/ijms25031828] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2023] [Revised: 01/05/2024] [Accepted: 01/31/2024] [Indexed: 02/12/2024] Open
Abstract
Pattern recognition receptors (PRRs) recognize danger signals such as PAMPs/MAMPs and DAMPs to initiate a protective immune response. TLRs, NLRs, CLRs, and RLRs are well-characterized PRRs of the host immune system. cGLRs have been recently identified as PRRs. In humans, the cGAS/STING signaling pathway is a part of cGLRs. cGAS recognizes cytosolic dsDNA as a PAMP or DAMP to initiate the STING-dependent immune response comprising type 1 IFN release, NF-κB activation, autophagy, and cellular senescence. The present article discusses the emergence of cGLRs as critical PRRs and how they regulate immune responses. We examined the role of cGAS/STING signaling, a well-studied cGLR system, in the activation of the immune system. The following sections discuss the role of cGAS/STING dysregulation in disease and how immune cross-talk with other PRRs maintains immune homeostasis. This understanding will lead to the design of better vaccines and immunotherapeutics for various diseases, including infections, autoimmunity, and cancers.
Collapse
Affiliation(s)
- Vijay Kumar
- Laboratory of Tumor Immunology and Immunotherapy, Department of Surgery, Morehouse School of Medicine, Atlanta, GA 30310, USA;
| | | |
Collapse
|
10
|
Eaglesham JB, Kranzusch PJ. Tracing the evolutionary origins of antiviral immunity. PLoS Biol 2024; 22:e3002481. [PMID: 38319913 PMCID: PMC10846735 DOI: 10.1371/journal.pbio.3002481] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2024] Open
Abstract
Animal and bacterial cells use shared mechanisms to defend against viruses. Analyzing 3 families of immune genes, a new study in PLOS Biology illuminates this evolutionary connection and traces the emergence of antiviral signaling across domains of life.
Collapse
Affiliation(s)
| | - Philip J. Kranzusch
- Department of Microbiology, Harvard Medical School, Boston, Massachusetts, United States of America
- Department of Cancer Immunology and Virology, Dana-Farber Cancer Institute, Boston, Massachusetts, United States of America
| |
Collapse
|
11
|
Goldstein SA, Elde NC. Recurrent viral capture of cellular phosphodiesterases that antagonize OAS-RNase L. Proc Natl Acad Sci U S A 2024; 121:e2312691121. [PMID: 38277437 PMCID: PMC10835031 DOI: 10.1073/pnas.2312691121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Accepted: 11/20/2023] [Indexed: 01/28/2024] Open
Abstract
Phosphodiesterases (PDEs) encoded by viruses are putatively acquired by horizontal transfer of cellular PDE ancestor genes. Viral PDEs inhibit the OAS-RNase L antiviral pathway, a key effector component of the innate immune response. Although the function of these proteins is well-characterized, the origins of these gene acquisitions are less clear. Phylogenetic analysis revealed at least five independent PDE acquisition events by ancestral viruses. We found evidence that PDE-encoding genes were horizontally transferred between coronaviruses belonging to different genera. Three clades of viruses within Nidovirales: merbecoviruses (MERS-CoV), embecoviruses (HCoV-OC43), and toroviruses encode independently acquired PDEs, and a clade of rodent alphacoronaviruses acquired an embecovirus PDE via recent horizontal transfer. Among rotaviruses, the PDE of rotavirus A was acquired independently from rotavirus B and G PDEs, which share a common ancestor. Conserved motif analysis suggests a link between all viral PDEs and a similar ancestor among the mammalian AKAP7 proteins despite low levels of sequence conservation. Additionally, we used ancestral sequence reconstruction and structural modeling to reveal that sequence and structural divergence are not well-correlated among these proteins. Specifically, merbecovirus PDEs are as structurally divergent from the ancestral protein and the solved structure of human AKAP7 PDE as they are from each other. In contrast, comparisons of rotavirus B and G PDEs reveal virtually unchanged structures despite evidence for loss of function in one, suggesting impactful changes that lie outside conserved catalytic sites. These findings highlight the complex and volatile evolutionary history of viral PDEs and provide a framework to facilitate future studies.
Collapse
Affiliation(s)
- Stephen A. Goldstein
- Department of Human Genetics, University of Utah, School of Medicine, Salt Lake City, UT84112
- HHMI, Chevy Chase, MD20815
| | - Nels C. Elde
- Department of Human Genetics, University of Utah, School of Medicine, Salt Lake City, UT84112
- HHMI, Chevy Chase, MD20815
| |
Collapse
|