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Updated: Jan 26, 2026

Multimodal Optical Imaging Platform for Studying Cellular Metabolism
Published on: June 6, 2025
Discovering metabolic disease gene interactions by correlated effects on cellular morphology
Yang Jiao1, Umer Ahmed1, M F Michelle Sim2
1Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA.
Objective:
Impaired expansion of peripheral fat contributes to the pathogenesis of insulin resistance and Type 2 Diabetes (T2D). We aimed to identify novel disease-gene interactions during adipocyte differentiation.
Methods:
Genes in disease-associated loci for T2D, adiposity and insulin resistance were ranked according to expression in human adipocytes. The top 125 genes were ablated in human pre-adipocytes via CRISPR/CAS9 and the resulting cellular phenotypes quantified during adipocyte differentiation with high-content microscopy and automated image analysis. Morphometric measurements were extracted from all images and used to construct morphologic profiles for each gene.
Results:
Over 107 morphometric measurements were obtained. Clustering of the morphologic profiles accross all genes revealed a group of 14 genes characterized by decreased lipid accumulation, and enriched for known lipodystrophy genes. For two lipodystrophy genes, BSCL2 and AGPAT2, sub-clusters with PLIN1 and CEBPA identifed by morphological similarity were validated by independent experiments as novel protein-protein and gene regulatory interactions.
Conclusions:
A morphometric approach in adipocytes can resolve multiple cellular mechanisms for metabolic disease loci; this approach enables mechanistic interrogation of the hundreds of metabolic disease loci whose function still remains unknown.
Insights
Researchers identified key genes influencing fat cell development and insulin resistance. This study reveals new interactions for understanding Type 2 Diabetes (T2D) and metabolic diseases.
Area of Science:
- Metabolic disease research
- Adipocyte biology
- Genetics and genomics
Background:
- Impaired peripheral fat expansion is linked to insulin resistance and Type 2 Diabetes (T2D).
- Understanding gene function in adipocyte differentiation is crucial for metabolic health.
Purpose of the Study:
- To identify novel disease-gene interactions in adipocyte differentiation.
- To investigate the role of T2D and obesity-associated genes in fat cell development.
Main Methods:
- Genes associated with T2D, adiposity, and insulin resistance were ranked by expression in human adipocytes.
- CRISPR/Cas9 was used to ablate the top 125 genes in pre-adipocytes.
- High-content microscopy and image analysis quantified cellular phenotypes during differentiation.
Main Results:
- Over 10^7 morphometric measurements revealed 14 genes associated with decreased lipid accumulation.
- These genes were enriched for known lipodystrophy genes.
- Novel protein-protein and gene regulatory interactions were validated for BSCL2 and AGPAT2 with PLIN1 and CEBPA.
Conclusions:
- A morphometric approach in adipocytes can elucidate cellular mechanisms underlying metabolic disease loci.
- This method allows for the mechanistic study of numerous unknown metabolic disease genes.
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