May 27, 2026 – new bioRxiv preprint

Jo’s and Prateek’s manuscript is online on bioRxiv:
How do adult cells acquire plasticity after injury? The Junker (MDC) and Ninov (CRTD) labs show that zebrafish δ1-cells restore insulin production after β-cell loss. δ1-cells occupy a permissive chromatin state before injury, and meis1a/b is required for the response.

May 6, 2026 – Paper online

How does regeneration begin after heart injury? In a new Nature Communications paper, Janita used in vivo single-cell RNA metabolic labeling to identify early transcriptional responders in the regenerating zebrafish heart