Metabolism and Stem Cells
The intestinal epithelium entirely self-renews every 4-7 days. Intestinal stem cells actively divide and differentiate giving rise to all cell types in the intestine. In several tissues, metabolic changes occur along and even drive stem cell differentiation. Our research shows that in the intestine the different cell types display distinct metabolic phenotypes. As a matter of fact, we showed that mitochondrial activity is key in the maintenance of stem cell function.
Currently, we apply organoid technology to investigate the cross-talk between cellular metabolism and cell signaling and how this orchestrates stem cell differentiation in normal and tumourigenic tissue.
Within a tumour, cancer cells sharing the same genetic mutations can display phenotypic differences that result in, e.g., differential response to chemotherapy. Derailed metabolism is a Hallmark of Cancer and the Warburg effect is one of the most conserved phenotypes defining tumour metabolism. Our live imaging-based single cell analysis indicates that tumour heterogeneity also occurs at the level of metabolism. We investigate the metabolism of cancer cells and how to exploit metabolic dependencies to enhance the efficacy of conventional chemotherapy.
Metabolism and Cell Cycle
The cell cycle is tightly regulated. Specific events take place in each cell cycle phase and cellular metabolism adjusts to support them. The occurrence of metabolic oscillations and their cross-talk with the cell cycle has been investigated in unicellular yeast.
In our group we investigate the occurrence of metabolic fluctuations along the cell cycle and how these two events interact with each other. We study these processes both in cell lines cultures and in organotypic cultures.