Related Experiment Video
Updated: Sep 6, 2025
09:01
A Macrophage-Tumor Spheroid Co-Invasion Assay
Published on: January 24, 2025
739
Gastric cancer multicellular spheroid analysis by two-photon microscopy
George Alzeeb1, Matthieu Dubreuil2, Danielle Arzur1
1Univ Brest, Inserm, EFS, UMR 1078, GGB, F-29200 Brest, France.
Biomedical Optics Express
|July 1, 2022
Summary
Three-dimensional gastric cancer (GC) spheroids reveal distinct cancer-associated fibroblast (CAF) behaviors. These differences highlight the personalized nature of GC, impacting tumor microenvironment interactions.
Area of Science:
- Oncology
- Cell Biology
- Biotechnology
Background:
- Gastric cancer (GC) presents a significant global health challenge.
- Standard 2D cell cultures inadequately represent the complex tumor microenvironment (TME).
- Three-dimensional (3D) spheroids offer a more physiologically relevant model for studying GC within its TME.
Purpose of the Study:
- To investigate the role and spatial organization of cancer-associated fibroblasts (CAFs) within 3D GC spheroids.
- To compare spheroid formation and CAF distribution between different human GC cell lines.
- To underscore the personalized characteristics of GC based on cellular interactions.
Main Methods:
- Establishment of 3D spheroids using two human GC cell lines (AGS and HGT-1) co-cultured with primary human CAFs.
- Analysis of spheroid organization and CAF distribution using advanced two-photon microscopy.
Main Results:
- Distinct CAF spatial distributions were observed in the two GC spheroid models.
- AGS/CAF spheroids exhibited centrally clustered CAFs.
- HGT-1/CAF spheroids displayed CAFs dispersed throughout the spheroid structure.
Conclusions:
- The observed differences in CAF organization suggest unique clonal specificities within GC cell lines.
- These findings emphasize the highly personalized nature of gastric cancer.
- 3D spheroid models with CAFs provide valuable insights into GC heterogeneity and TME dynamics.
