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Taking the Scenic Route: Polyomaviruses Utilize Multiple Pathways to Reach the Same Destination
Colleen L Mayberry1, Melissa S Maginnis1,2
1Department of Molecular and Biomedical Sciences, The University of Maine, Orono, ME 04469, USA.
Viruses
|October 20, 2020
Summary
Polyomaviruses, including human JC, BK, and Merkel cell polyomaviruses, share conserved infection mechanisms. Studying murine and simian virus 40 (SV40) polyomaviruses aids understanding of human diseases caused by these viruses.
Area of Science:
- Virology
- Molecular Biology
- Infectious Diseases
Background:
- Polyomaviridae family members exhibit diverse host ranges and pathogenesis.
- Human polyomaviruses (JC, BK, Merkel cell) are linked to severe, fatal illnesses.
- Non-human polyomaviruses like murine and simian virus 40 (SV40) offer insights into human viral infections.
Purpose of the Study:
- To review the molecular mechanisms of the polyomavirus infectious cycle.
- To highlight conserved processes and unique features across the Polyomaviridae family.
- To underscore the importance of studying non-human polyomaviruses for understanding human diseases.
Main Methods:
- Review of existing literature on polyomavirus molecular mechanisms.
- Focus on cellular processes hijacked during infection: attachment, internalization, cytoplasmic trafficking, ER disassembly, and nuclear delivery.
- Comparative analysis of infectious cycles across different polyomaviruses.
Main Results:
- Polyomaviruses utilize conserved molecular strategies to infect host cells.
- Key steps include entry, intracellular transport, and release of viral genetic material in the nucleus.
- Distinct viral features contribute to variations in pathogenesis and host specificity.
Conclusions:
- Understanding the conserved infectious cycle of polyomaviruses is crucial for deciphering disease mechanisms.
- Insights from non-human polyomaviruses like SV40 are valuable for developing strategies against human polyomavirus infections.
- Further research into conserved and unique viral mechanisms will advance the field of polyomavirus research.
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