Matthew J. Fanelli

The paper investigates the functional specialization of SAM synthases in C. elegans, showing that SAMS-1 affects mitochondrial function and stress survival through phosphatidylcholine, while SAMS-4 is critical for methylation reactions.

This study identifies keratinocytes and PDGF-B/PDGFRβ signaling as key mediators of peripheral opioid tolerance in mice, showing that PDGF-B release from keratinocytes drives tolerance through activation of PDGFRβ in sensory neurons.