News summary

Beyond ER-Golgi trafficking: unconventional protein secretion as a new design frontier for synthetic secretion switches in mammalian cells

Source: Nature - Biotechnology • Published: 19 Sept 2026, 00:00

Summarized by Masters of Longevity from Nature - Biotechnology.

Unconventional protein secretion is presented as a design-oriented review of alternative secretion-control strategies for faster extracellular responses in engineered mammalian cells.

Beyond ER-Golgi trafficking: unconventional protein secretion as a new design frontier for synthetic secretion switches in mammalian cells
Key Takeaways
  • Relocating regulatory control from gene expression to pre-synthesized proteins enables substantially faster extracellular responses than transcriptional or translational switches.
  • ER‑Golgi–based secretion-control strategies improve kinetics but remain constrained by ER dependence, cargo compatibility, host specificity, and basal leakage.
  • Unconventional protein secretion provides alternative terminal export pathways that can position regulation closer to extracellular release and expand design architectures for rapid secretion switches.
Read the full article at Nature - Biotechnology

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