Functional diversity of GPCR-Gustducin complexes controls signaling output and suppresses alternative pathways

This study reveals that non-taste GPCRs exhibit functional diversity in interacting with gustducin, either activating it or forming unproductive complexes that suppress basal signaling and sequester receptors from alternative pathways, thereby establishing a novel mechanism for balancing concurrent cellular signaling.

Jaime Arce, V., Toegl, M. S., Bonn Garcia, S. J. + 3 more2026-03-30📄 cell biology

Polarized anionic phospholipids and exocytosis are implicated in the polarized recruitment of budding yeast AP180, an endocytic initiator

This study demonstrates that in budding yeast, the specific recruitment of the endocytic initiator Yap1802 to growing daughter cells is driven by a direct interaction with the exocytic v-SNARE Snc2 and polarized anionic phospholipids, thereby establishing a mechanistic link between polarized secretion and the initiation of clathrin-mediated endocytosis.

Marchando, P., Hu, G., Yuan, F. + 3 more2026-03-29📄 cell biology

Patient-derived vascularized skin organoids unravel the role of systemic sclerosis fibroblasts in microvascular dysfunction.

This study demonstrates that patient-derived vascularized skin organoids containing systemic sclerosis fibroblasts recapitulate key disease features, such as giant capillary formation and early fibrosis, thereby revealing the critical role of fibroblast-driven crosstalk in microvascular dysfunction and offering a novel model for drug evaluation.

PITAVAL, A., JOBEILI, L., WELSCH, C. + 8 more2026-03-28📄 cell biology