Tongji Medical College · Huazhong University of Science and Technology
Ji Lab
We study how membrane-bound organelles communicate through contact sites, lipid transfer proteins, and dynamic remodeling of cellular membranes.
Research Interests
The ER as a platform for organelle communication.
The endoplasmic reticulum forms contact sites with endosomes, lysosomes, mitochondria, the Golgi apparatus, and lipid droplets. At these interfaces, cells exchange lipids and signals without membrane fusion, coordinate organelle biogenesis, and maintain metabolic homeostasis.
The Ji Lab combines live-cell imaging, biochemical reconstitution, lipid analysis, and disease-relevant cell biology to understand how these contacts are built and how their failure contributes to human disease.
Research Projects
Published lines of investigation.
Each project below is anchored in peer-reviewed work from the lab and illustrated with original schematic artwork inspired by published mechanisms.
News
Recent public milestones.
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The SigmaR1 paper appeared in Nature Communications, defining an ER-sheet auxiliary translocon factor with lipid-binding activity.
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The Sec14L6 paper appeared in Nature Communications, defining phosphoinositide transport during lipid droplet biogenesis.
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Work on VPS13B/COH1 and Sec23IP was published in Journal of Cell Biology, linking ER exit site-Golgi interfaces to Cohen syndrome biology.
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The BLTP1-SHIP164-BLTP2 study was published in Cell Discovery, describing lipid-transfer-dependent Rab14 endosome budding.
Selected Publications
Representative papers.
- Nature Communications · 2026 SigmaR1 is an auxiliary translocon factor with lipid-binding activity...
- Nature Communications · 2025 Sec14L6 is a phosphoinositide transporter that regulates phosphoinositide homeostasis...
- Journal of Cell Biology · 2024 Sec23IP recruits VPS13B/COH1 to ER exit site-Golgi interface...
- Cell Discovery · 2024 Biogenesis of Rab14-positive endosome buds at Golgi-endosome contacts...