
ALT Section of a mouse neural tube stained with phalloidin to visualize filamentous actin protein. The formation of pathway-specific cytonemes, actin-based “highways” that guide delivery of morphogen and growth factor signals to distant target cells, remains largely undefined. Daly et al. analyzed the development of Sonic Hedgehog cytonemes and signaling sequences in mouse embryos, finding that repurposing cell adhesion molecule-related proteins BOC and CDON to recruit actin regulators promotes cytoneme elongation and precise information flow. Their study suggests that identifying pathway-specific modes of recruiting actin regulators can help define how signal precision is maintained in dynamic tissue environments. Credit: Christina Daly

ALT Artistic concept of the Multimodal Ultrasound System for Injury Care, or MUSIC device, which uses ultrasound to reveal the spinal cord’s inner structure after decompression surgery. Currently, direct observation of spinal cord physiology following spinal decompression surgery for acute spinal cord injury is challenging. Kerensky et al. designed the implantable MUSIC device to aid visualization of spinal cord structure and track blood flow speed and velocity after surgery. Their findings may enable postoperative spinal cord monitoring and management through sound-based ultrasound technology. Credit: Laura Roy, CMI / LauraRoyStudios.com




















