Capturing the spatiotemporal diversity of cellular and molecular mechanisms in ALS

ALS patients’ own skin cells, reprogrammed into stem cells and then into motor neurons, are revealing that the disease involves not just the neurons themselves but also their supporting cells, the astrocytes. This matters because ALS—a rapid, untreatable paralysis of the nerves controlling movement and breathing—remains poorly understood at the cellular level. Most research has focused on motor neurons, but the evidence now points to a two-part failure: corrupted molecular messages that disrupt protein production inside neurons, and malfunctioning astrocytes that should be supporting them. The team will also investigate how ageing makes both cell types more vulnerable, a key gap in current knowledge. If this work succeeds, it will map the precise sequence of failures—where and when they occur—across different cell types and over time. That map could guide the development of therapies that target the earliest, most critical steps in the disease process, rather than treating symptoms after widespread damage has occurred. The research is fundamental science: it aims to define the basic mechanisms of ALS, not to test a drug. But without that definition, rational therapy design is impossible.