Natural killer cells in host defense against veterinary pathogens

Area of Science:

• Immunology
• Veterinary Science
• Infectious Disease

Background:

• Natural Killer (NK) cells are vital innate lymphoid cells involved in early immune responses.
• NK cells bridge innate and adaptive immunity by interacting with dendritic cells.
• While well-studied in humans and mice, NK cell function in domestic animal pathogen defense is emerging.

Purpose of the Study:

• To review the current understanding of NK cell contributions to pathogen defense in domestic animals.
• To focus on the roles of NK cells in cattle and pigs.
• To highlight the potential for manipulating NK cells for veterinary therapeutic and preventive strategies.

Main Methods:

• Literature review of existing studies on NK cells in domestic animal immunity.
• Synthesis of current knowledge on NK cell function in response to various infections.
• Identification of knowledge gaps and future research directions.

Main Results:

• NK cells are integral to innate immunity in domestic animals, offering rapid defense against pathogens.
• These cells modulate adaptive immune responses, influencing overall protection.
• Specific roles in cattle and pigs are increasingly being elucidated, showing conserved and distinct functions.

Conclusions:

• NK cells play a significant role in domestic animal health and disease resistance.
• Further research into NK cell immunobiology is essential for developing novel veterinary interventions.
• Understanding NK cell mechanisms can lead to improved strategies for disease prevention and treatment in livestock.