Spatial multi-omics analyses of the tumor immune microenvironment

Area of Science:

• Oncology
• Immunology
• Genomics
• Proteomics
• Metabolomics

Background:

• Single-cell technologies have elucidated tumor-immune microenvironment heterogeneity at multi-omic levels, advancing understanding of tumor development and biomarker identification.
• A key limitation of single-cell approaches is the loss of spatial information, including cell locations and cell-cell interactions within the tumor microenvironment.

Purpose of the Study:

• To review cutting-edge spatial multi-omics techniques for studying the tumor-immune microenvironment.
• To highlight the application of these spatial technologies in cancer research.
• To discuss the remaining technical challenges in the field.

Main Methods:

• Review of recent advancements in spatial multi-omics technologies.
• Analysis of their application in characterizing the tumor-immune microenvironment.
• Integration of spatial data with immunohistochemistry and multiparameter analysis.

Main Results:

• Spatial multi-omics technologies enable the study of transcriptomes, proteomes, and metabolomes within their native spatial context.
• These methods have been applied to various cancer types, providing novel insights into tumor progression.
• Combined approaches yield potential biomarkers for cancer progression.

Conclusions:

• Spatial multi-omics technologies are crucial for a comprehensive understanding of the tumor-immune microenvironment.
• These techniques overcome the spatial information loss inherent in traditional single-cell analyses.
• Further development is needed to address existing technical challenges in spatial omics.