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The cyclic dinucleotide 2′3′-cGAMP induces a broad antibacterial and antiviral response in the sea anemone Nematostella vectensis

In mammals, cyclic dinucleotides (CDNs) bind and activate STING to initiate an antiviral type I interferon response. CDNs and STING originated in bacteria and are present in most animals. By contrast, interferons are believed to have emerged in vertebrates; thus, the function of CDN signaling in inv...

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Autores principales: Margolis, Shally R., Dietzen, Peter A., Hayes, Beth M., Wilson, Stephen C., Remick, Brenna C., Chou, Seemay, Vance, Russell E.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: National Academy of Sciences 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8713801/
https://www.ncbi.nlm.nih.gov/pubmed/34903650
http://dx.doi.org/10.1073/pnas.2109022118
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author Margolis, Shally R.
Dietzen, Peter A.
Hayes, Beth M.
Wilson, Stephen C.
Remick, Brenna C.
Chou, Seemay
Vance, Russell E.
author_facet Margolis, Shally R.
Dietzen, Peter A.
Hayes, Beth M.
Wilson, Stephen C.
Remick, Brenna C.
Chou, Seemay
Vance, Russell E.
author_sort Margolis, Shally R.
collection PubMed
description In mammals, cyclic dinucleotides (CDNs) bind and activate STING to initiate an antiviral type I interferon response. CDNs and STING originated in bacteria and are present in most animals. By contrast, interferons are believed to have emerged in vertebrates; thus, the function of CDN signaling in invertebrates is unclear. Here, we use a CDN, 2′3′ cyclic guanosine monophosphate-adenosine monophosphate (2′3′-cGAMP), to activate immune responses in a model cnidarian invertebrate, the starlet sea anemone Nematostella vectensis. Using RNA sequencing, we found that 2′3′-cGAMP induces robust transcription of both antiviral and antibacterial genes in N. vectensis. Many of the antiviral genes induced by 2′3′-cGAMP are homologs of vertebrate interferon-stimulated genes, implying that the interferon response predates the evolution of interferons. Knockdown experiments identified a role for NF-κB in specifically inducing antibacterial genes downstream of 2′3′-cGAMP. Some of these putative antibacterial genes were also found to be induced during Pseudomonas aeruginosa infection. We characterized the protein product of one of the putative antibacterial genes, the N. vectensis homolog of Dae4, and found that it has conserved antibacterial activity. This work suggests that a broad antibacterial and antiviral transcriptional response is an evolutionarily ancestral output of 2′3′-cGAMP signaling in animals.
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spelling pubmed-87138012022-01-21 The cyclic dinucleotide 2′3′-cGAMP induces a broad antibacterial and antiviral response in the sea anemone Nematostella vectensis Margolis, Shally R. Dietzen, Peter A. Hayes, Beth M. Wilson, Stephen C. Remick, Brenna C. Chou, Seemay Vance, Russell E. Proc Natl Acad Sci U S A Biological Sciences In mammals, cyclic dinucleotides (CDNs) bind and activate STING to initiate an antiviral type I interferon response. CDNs and STING originated in bacteria and are present in most animals. By contrast, interferons are believed to have emerged in vertebrates; thus, the function of CDN signaling in invertebrates is unclear. Here, we use a CDN, 2′3′ cyclic guanosine monophosphate-adenosine monophosphate (2′3′-cGAMP), to activate immune responses in a model cnidarian invertebrate, the starlet sea anemone Nematostella vectensis. Using RNA sequencing, we found that 2′3′-cGAMP induces robust transcription of both antiviral and antibacterial genes in N. vectensis. Many of the antiviral genes induced by 2′3′-cGAMP are homologs of vertebrate interferon-stimulated genes, implying that the interferon response predates the evolution of interferons. Knockdown experiments identified a role for NF-κB in specifically inducing antibacterial genes downstream of 2′3′-cGAMP. Some of these putative antibacterial genes were also found to be induced during Pseudomonas aeruginosa infection. We characterized the protein product of one of the putative antibacterial genes, the N. vectensis homolog of Dae4, and found that it has conserved antibacterial activity. This work suggests that a broad antibacterial and antiviral transcriptional response is an evolutionarily ancestral output of 2′3′-cGAMP signaling in animals. National Academy of Sciences 2021-12-13 2021-12-21 /pmc/articles/PMC8713801/ /pubmed/34903650 http://dx.doi.org/10.1073/pnas.2109022118 Text en Copyright © 2021 the Author(s). Published by PNAS. https://creativecommons.org/licenses/by-nc-nd/4.0/This open access article is distributed under Creative Commons Attribution-NonCommercial-NoDerivatives License 4.0 (CC BY-NC-ND) (https://creativecommons.org/licenses/by-nc-nd/4.0/) .
spellingShingle Biological Sciences
Margolis, Shally R.
Dietzen, Peter A.
Hayes, Beth M.
Wilson, Stephen C.
Remick, Brenna C.
Chou, Seemay
Vance, Russell E.
The cyclic dinucleotide 2′3′-cGAMP induces a broad antibacterial and antiviral response in the sea anemone Nematostella vectensis
title The cyclic dinucleotide 2′3′-cGAMP induces a broad antibacterial and antiviral response in the sea anemone Nematostella vectensis
title_full The cyclic dinucleotide 2′3′-cGAMP induces a broad antibacterial and antiviral response in the sea anemone Nematostella vectensis
title_fullStr The cyclic dinucleotide 2′3′-cGAMP induces a broad antibacterial and antiviral response in the sea anemone Nematostella vectensis
title_full_unstemmed The cyclic dinucleotide 2′3′-cGAMP induces a broad antibacterial and antiviral response in the sea anemone Nematostella vectensis
title_short The cyclic dinucleotide 2′3′-cGAMP induces a broad antibacterial and antiviral response in the sea anemone Nematostella vectensis
title_sort cyclic dinucleotide 2′3′-cgamp induces a broad antibacterial and antiviral response in the sea anemone nematostella vectensis
topic Biological Sciences
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8713801/
https://www.ncbi.nlm.nih.gov/pubmed/34903650
http://dx.doi.org/10.1073/pnas.2109022118
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