Multiple invasions of an infectious retrovirus in cat genomes
Open accessAbstract
Endogenous retroviruses (ERVs) are remnants of ancient retroviral infections of host germ-line cells. While most ERVs are defective, some are active and express viral proteins. The RD-114 virus is a replication-competent feline ERV and several feline cell lines produce infectious RD-114 viral particles. All domestic cats are considered to have an ERV locus encoding a replication-competent RD-114 virus in their genomes; however, the locus has not been identified. In this study, we investigated RD-114 virus-related proviral loci in genomes of domestic cats and found that none were capable of producing infectious viruses. We also found that all domestic cats have an RD-114 virus-related sequence on chromosome C2, termed RDRS C2a, but populations of the other RDRSs are different depending on the regions where cats live or breed. Our results indicate that RDRS C2a, the oldest RD-114-related provirus, entered the host genome before an ancestor of domestic cats started diverging and the other new RDRSs might have integrated into migrating cats in Europe. We also show that infectious RD-114 virus can be resurrected by the recombination between two non-infectious RDRSs. From these data, we conclude that cats do not harbor infectious RD-114 viral loci in their genomes and RD-114-related viruses invaded cat genomes multiple times.
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While most ERVs are defective and unable to produce infectious viral particles, some ERVs can.
“While most ERVs are defective and unable to produce infectious viral particles, some ERVs can [7,121].”
From What would it take to prove that a chronic infection is a causal agent in Alzheimer’s disease? (2025) · cites this paper as [121]
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What would it take to prove that a chronic infection is a causal agent in Alzheimer’s disease?
Brutkiewicz, R. R., Cao, W., Morgan, D., Reis, R. S. D., Suryadevara, V., Willette, A. A., Willette, S. A., Wyatt-Johnson, S. K., & Duggan, M. R. (2025) · Trends in Neurosciences · doi:10.1016/j.tins.2025.05.009 · Cited by 3 · see citing works
- Authors
- Shimode, S., Nakagawa, S., & Miyazawa, T.
- Affiliations
- Kyoto University (JP)
- Tokai University (JP)
- Corresponding author
- Miyazawa, Takayuki
- Venue
- Scientific Reports
- Published
- 2015-02-02
- Volume
- 5
- Issue
- 1
- Pages
- 8164-8164
- ISSN
- 2045-2322 (ISSN-L)
- PMC
- PMC4313119
- OpenAlex
- W2019178666
- Cited by
- 23
- References
- 3
- Citations by year
- 2026: 1 · 2025: 1 · 2024: 3 · 2023: 1 · 2022: 2 · 2021: 3 · 2020: 2 · 2019: 2 · 2018: 1 · 2017: 2 · 2016: 3 · 2015: 2
- FWCI
- 3.22
- Type
- journal article
- Language
- en
- Open access
- gold
- doi.org
- Locations
- Scientific Reports (publishedVersion, cc-by)
- Europe PMC (PubMed Central) (publishedVersion, cc-by)
- PubMed Central (publishedVersion, cc-by)
- PubMed (publishedVersion)
- Kyoto University Research Information Repository (Kyoto University) (submittedVersion)
- Funders
- University College London
- Japan Society for the Promotion of Science (25891023, 14J05589)
- Topics
- Life Sciences › Agricultural and Biological Sciences › Plant Science › Chromosomal and Genetic Variations
- Health Sciences › Veterinary › Small Animals › Infectious Diseases and Mycology
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Evolution and Genetic Dynamics
- Keywords
- endogenous retroviruses, feline retroviruses, cats, viral recombination, multiple invasions, retroviral evolution
- MeSH terms
- Animals, Base Sequence, Cats, Cell Line, Chromosomes, Humans, Molecular Sequence Data, Proviruses, RNA, Viral, Blotting, Southern, Genome, Endogenous Retroviruses, Genetic Loci, HEK293 Cells
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