Studying immune to non-immune cell cross-talk using single-cell technologies

Area of Science:

• Immunology
• Systems Biology
• Genomics

Background:

• Single-cell RNA-sequencing (scRNA-seq) has elucidated significant immune heterogeneity, including novel cell types, states, and lineages.
• Emerging research underscores the critical role of the immune microenvironment, encompassing both immune and non-immune cells, in biological processes like development, homeostasis, and disease pathogenesis.

Purpose of the Study:

• This review focuses on single-cell studies that map cell-cell interactions across various tissues.
• It aims to highlight the importance of these interactions in development, health, and disease contexts.
• The review also addresses the necessity for a comprehensive interaction map to tackle fundamental questions in immunology.

Main Methods:

• Review of existing literature on single-cell RNA-sequencing studies.
• Analysis of studies focusing on cell-cell interaction mapping in diverse tissues.
• Discussion of experimental and computational strategies for generating interaction maps.

Main Results:

• Single-cell technologies have revealed unprecedented detail in immune cell heterogeneity.
• Studies demonstrate the crucial role of tissue-specific immune microenvironments in various physiological and pathological states.
• Mapping cell-cell interactions at single-cell resolution provides insights into tissue development, homeostasis, and disease progression.

Conclusions:

• Comprehensive mapping of cell-cell interactions using single-cell approaches is essential for advancing our understanding of immunology.
• Developing robust experimental and computational strategies is key to creating detailed interaction maps.
• Such maps will enable answering fundamental questions about immune system function in health and disease.