# Lumpy Skin Disease Virus Pathogenesis: Viral Protein Functions and Comparative Insights from Vaccinia Virus

## TL;DR

This paper reviews how the Lumpy Skin Disease Virus infects cattle and evades the immune system, comparing it to vaccinia virus to better understand its pathogenesis and improve control measures.

## Contribution

The paper provides a detailed comparative analysis of LSDV protein functions and immune evasion strategies, highlighting conserved and unique mechanisms.

## Key findings

- LSDV encodes proteins that disrupt host immunity, aiding infection and survival.
- Comparative analysis with vaccinia virus reveals conserved and unique strategies in viral life cycle and immune evasion.
- Multi-omics and structural biology approaches are proposed to advance understanding and develop new treatments.

## Abstract

Lumpy skin disease is a significant viral infection affecting cattle, and it is characterized by skin nodules, fever, and potentially fatal outcomes, all of which contribute to substantial economic losses in the livestock industry. This review synthesizes existing understanding of the molecular mechanisms employed by the Lumpy Skin Disease Virus (LSDV), focusing on its ability to enter host cells, replicate, and evade immune defenses. Through comparative analysis with vaccinia virus, a well-characterized relative, we elucidate both conserved and unique strategies that enhance viral survival and transmission. The findings demonstrate that LSDV encodes multiple proteins capable of disrupting host immunity, thereby promoting infection. These insights deepen our comprehension of viral pathogenesis and provide a foundation for developing improved vaccines and control measures aimed at mitigating outbreaks, enhancing animal health, and supporting sustainable agricultural economies.

Lumpy Skin Disease Virus (LSDV), a member of the poxvirus family, represents a significant threat to global cattle industries. This review presents an analysis of LSDV-encoded proteins and their interactions with host systems, elucidating the molecular mechanisms governing viral life cycle progression and immune evasion strategies. We provide detailed characterization of the complex architecture of LSDV virions, including Intracellular Mature Virus (IMV), Extracellular Enveloped Virus (EEV), lateral bodies, and the core components, while summarizing the crucial functions of viral proteins throughout various stages of infection—entry, replication, transcription, translation, assembly, and egress. Particular attention is given to the immunomodulatory strategies employed by LSDV to subvert both innate and adaptive immune responses. These mechanisms encompass molecular mimicry of cytokines and chemokines, interference with antigen presentation pathways, inhibition of key immune signaling cascades, and modulation of apoptosis and autophagy processes. Through comparative analysis with homologs from related poxviruses, especially vaccinia virus, we highlight both evolutionarily conserved functions and potential unique adaptations in LSDV proteins. This review further identifies critical knowledge gaps in current understanding and proposes promising research directions. We emphasize that integrating multi-omics approaches with structural biology will be essential for advancing our understanding of LSDV pathogenesis and for developing novel preventive and therapeutic strategies against this important animal pathogen.