ArticleNature communications2026
Reversible control of post-Golgi transport by brefeldin A reveals recycling endosome maturation during glycosylphosphatidylinositol-anchored protein transport.
Article in Nature communications, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Post-Golgi transport plays a crucial role in establishing and maintaining cellular function; however, its mechanism of action remains unclear. Therefore, a system to manipulate post-Golgi transport is highly desirable. In this study, we developed a brefeldin A (BFA)-controlled system to block and restart post-Golgi transport freely, allowing the detailed observation of cargo exit from Golgi stacks using live-cell imaging, electron microscopy, and biochemical analysis. Using this system, glycosylphosphatidylinositol-anchored protein (GPI-AP) transport from the trans-Golgi network (TGN) to Golgi-associated recycling endosomes (GA-REs) was visualized. GA-REs expanded during GPI-AP uptake, indicating maturation from the TGN into REs, which later detached as free REs released from the Golgi stacks. Tubular and pearled GPI-AP-positive structures formed on the TGN, which were likely GA-REs transporting GPI-AP from the TGN. REs matured in AP-1-deficient cells, whereas GA-RE detachment was impaired, and long-tubules were observed, thereby delaying GPI-AP delivery to the plasma membrane.
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