Metabolic Plasticity in Tumor Microenvironments

Metabolic plasticity refers to the capacity of cancer cells and their surrounding stromal components to rewire energy production and biosynthetic pathways in response to fluctuating oxygen, nutrient availability and therapeutic pressure. Within the tumour microenvironment, cancer cells engage in dynamic interactions with endothelial cells, immune infiltrates and cancer-associated fibroblasts, leading to the emergence of heterogeneous metabolic phenotypes. These range from classical aerobic glycolysis, known as the Warburg effect, to oxidative phosphorylation and hybrid glycolysis–mitochondrial states. Spatial gradients of oxygen and nutrients drive local metabolic specialisation, while secreted factors and extracellular matrix remodelling further influence substrate availability. Metabolic crosstalk establishes a form of symbiosis, in which lactate, amino acids and lipids shuttle between stromal and malignant cells to support proliferation, invasion and immune evasion. Adaptation to therapy often involves a switch in fuel preference or upregulation of alternative pathways, contributing to drug resistance. Collectively, this plasticity underpins tumour progression, metastatic dissemination and therapeutic failure, but also reveals metabolic vulnerabilities that may be exploited in precision oncology.

Research from Nature Portfolio

Recent studies have constructed comprehensive maps of metastatic potential across hundreds of human cancer cell lines in vivo, revealing that organ-specific colonisation is closely linked to shifts in lipid metabolism. In particular, enhanced fatty acid synthesis and altered lipid uptake were found to promote brain metastasis in breast cancer models. This work highlights how distinct metabolic programmes are selected during dissemination and suggests that targeting lipid processing enzymes can curb metastatic outgrowth. Further mechanistic insights demonstrate that metastatic subclones can reprogramme both glycolytic and mitochondrial pathways to thrive in secondary sites, emphasising the need for context-specific metabolic inhibitors.

Metabolic Plasticity in Tumor Microenvironments publication trend

The graph below shows the total number of articles in metabolic plasticity in tumor microenvironments across all publications each year (not limited to Nature Index journals).

Technical terms

Metabolic plasticity: The ability of cells to switch between different energy and biosynthetic pathways in response to environmental cues.

Tumour microenvironment: The cellular and non-cellular milieu surrounding cancer cells, including stromal cells, immune cells, blood vessels and extracellular matrix.

Warburg effect: Predominant reliance on aerobic glycolysis by cancer cells, even in the presence of oxygen.

Reverse Warburg effect: A phenomenon in which stromal fibroblasts engage in glycolysis and secrete metabolites that fuel oxidative phosphorylation in adjacent cancer cells.

Metabolic symbiosis: Cooperative exchange of metabolites between different cell types within a tumour to optimise resource use.

Cancer-associated fibroblasts (CAFs): Activated fibroblasts within tumours that secrete growth factors, cytokines and metabolites to support malignant progression.

Epithelial-to-mesenchymal transition (EMT): A process whereby epithelial cells acquire mesenchymal traits, enhancing motility and invasiveness, often accompanied by metabolic reprogramming.

References

1. A metastasis map of human cancer cell lines. Nature (2020).
2. Metabolic reprogramming: the emerging concept and associated therapeutic strategies. Journal of Experimental & Clinical Cancer Research (2015).
3. Elucidating the Metabolic Plasticity of Cancer: Mitochondrial Reprogramming and Hybrid Metabolic States. Cells (2018).
4. The reverse Warburg effect is likely to be an Achilles’ heel of cancer that can be exploited for cancer therapy. Oncotarget (2017).
5. Reprogramming of lipid metabolism in cancer-associated fibroblasts potentiates migration of colorectal cancer cells. Cell Death & Disease (2020).
6. Metabolic rewiring in the promotion of cancer metastasis: mechanisms and therapeutic implications. Oncogene (2020).