Related Experiment Video
Updated: Oct 30, 2025
12:00
Vaccinia Virus Infection & Temporal Analysis of Virus Gene Expression: Part 1
Published on: April 8, 2009
10.5K
Comparative Pathogenesis, Genomics and Phylogeography of Mousepox
Carla Mavian1, Alberto López-Bueno1, Rocío Martín1
1Centro de Biología Molecular Severo Ochoa, Consejo Superior de Investigaciones Científicas, Campus de Cantoblanco, Universidad Autónoma de Madrid, Nicolás Cabrera 1, 28049 Madrid, Spain.
Viruses
|July 2, 2021
Summary
Ectromelia virus (ECTV) strains were sequenced, revealing genes linked to mousepox virulence and viral growth. A novel field isolate, ECTV-MouKre, showed moderate virulence and inhibited inflammation, while P4c protein variations impact viral spread.
Area of Science:
- Virology
- Immunology
- Genomics
Background:
- Ectromelia virus (ECTV) causes mousepox, a significant threat to laboratory mice.
- Mousepox research aids understanding of poxvirus pathogenesis and immune evasion.
Purpose of the Study:
- To sequence novel ECTV isolates and analyze their genomes.
- To investigate the genetic basis of ECTV virulence and in vitro growth.
- To understand the phylogenetic and geographic relationships of ECTV strains.
Main Methods:
- Parallel monitoring of nine ECTV isolates in BALB/cJ mice.
- Full-length genome sequencing of eight novel ECTV strains.
- Comparative genomic analysis to identify virulence-associated genes.
Main Results:
- Eight novel ECTV genome sequences were obtained, including a field isolate (ECTV-MouKre).
- Genes absent in attenuated strains but present in virulent ones were identified.
- ECTV-MouKre exhibited moderate virulence and a potential inflammatory response inhibitor.
- Most ECTV strains, except ECTV-Hampstead, have a truncated P4c protein, affecting virion recruitment to inclusion bodies.
Conclusions:
- The study provides insights into ECTV virulence factors and genes enhancing in vitro growth.
- ECTV P4c protein likely plays a role in viral dissemination and transmission.
- This research offers a comprehensive view of ECTV outbreak dynamics globally.
