Diversity of human NK cell developmental pathways defined by single-cell analyses
1Vagelos College of Physicians and Surgeons, Department of Pediatrics, Columbia University Irving Medical Center, New York, NY 10032, United States.
Current Opinion in Immunology
|December 3, 2021
Summary
Human natural killer (NK) and innate lymphoid cells (ILCs) are diverse immune cells. New research using advanced sequencing reveals deeper insights into their development and specialized roles in the body.
Area of Science:
- Immunology
- Cell Biology
- Genomics
Background:
- Human natural killer (NK) cells and innate lymphoid cells (ILCs) are crucial innate immune effector cells.
- These cells exist in specialized subsets within tissues and circulation, performing distinct functions.
- Recent research has focused on understanding their tissue-resident phenotypes, development, and adaptability.
Purpose of the Study:
- To review recent advancements in understanding human NK cell diversity.
- To integrate new findings from next-generation sequencing and single-cell transcriptomics into existing models of NK cell development and subsets.
- To highlight current knowledge gaps in innate lymphoid cell differentiation and homeostasis.
Main Methods:
- Review of recent scientific literature.
- Analysis of data from next-generation sequencing studies.
- Integration of single-cell transcriptomic data.
Main Results:
- Next-generation sequencing and single-cell transcriptomics have significantly refined the definition of human NK cell diversity.
- New insights have been gained into the developmental trajectories and mature subsets of human NK cells.
- A more profound understanding of innate lymphoid cell differentiation and homeostasis has emerged.
Conclusions:
- Advanced genomic techniques provide unprecedented resolution into NK cell and ILC heterogeneity.
- Current models of NK cell development are being updated with new data on mature subsets.
- Further research is needed to address outstanding questions in ILC biology and homeostasis.
