Related Experiment Video
Updated: Sep 28, 2025
05:03
Author Spotlight: Elucidating the Pathways of TFH Cell Differentiation in Acute LCMV Challenges
Published on: April 26, 2024
819
Method to Study Adaptive NK Cells Following MCMV Infections
Mohamed Khalil1,2, Ao Mei1,2, Elaheh Hashemi1,2
1Laboratory of Molecular Immunology and Immunotherapy, Blood Research Institute, Versiti, Milwaukee, WI, USA.
Methods in Molecular Biology (Clifton, N.J.)
|March 28, 2022
Summary
Natural killer (NK) cells exhibit adaptive-like memory following cytomegalovirus (CMV) infection. This study details a mouse model protocol to investigate this unique innate immune memory response.
Area of Science:
- Immunology
- Innate Immunity
- Adaptive Immunity
Background:
- Immunological memory protects against reinfection.
- Natural killer (NK) cells, part of innate immunity, typically lack receptors for memory formation.
- A subset of NK cells develops adaptive-like features.
Purpose of the Study:
- To describe an in vivo protocol for studying adaptive NK cell responses.
- To investigate NK cell memory formation after cytomegalovirus (CMV) infection.
Main Methods:
- Infection of mice with mouse cytomegalovirus (MCMV).
- Analysis of clonal expansion of specific NK cell subsets (e.g., NKG2C+ in humans, Ly49H+ in mice).
Main Results:
- Cytomegalovirus infection induces clonal expansion of specific NK cell populations.
- These NK cells possess receptors (e.g., NKG2C, Ly49H) that recognize viral proteins.
- NK cells generate long-lived progeny with memory features without gene rearrangement.
Conclusions:
- NK cells can develop adaptive-like immunological memory.
- The described MCMV infection protocol facilitates the study of NK cell memory.
- Understanding NK cell memory is crucial for host defense against recurrent infections.
