Functions of oxysterol-binding proteins at membrane contact sites and their control by phosphoinositide metabolism

F Nakatsu, A Kawasaki - Frontiers in Cell and Developmental Biology, 2021 - frontiersin.org
Lipids must be correctly transported within the cell to the right place at the right time in order
to be fully functional. Non-vesicular lipid transport is mediated by so-called lipid transfer …

New insights into the OSBP‒VAP cycle

M Subra, B Antonny, B Mesmin - Current Opinion in Cell Biology, 2023 - Elsevier
VAP-A is a major endoplasmic reticulum (ER) receptor that allows this organelle to engage
numerous membrane contact sites with other organelles. One highly studied example is the …

[HTML][HTML] Nutrient-regulated control of lysosome function by signaling lipid conversion

M Ebner, D Puchkov, O López-Ortega… - Cell, 2023 - cell.com
Lysosomes serve dual antagonistic functions in cells by mediating anabolic growth signaling
and the catabolic turnover of macromolecules. How these janus-faced activities are …

Regulation of cellular cholesterol distribution via non-vesicular lipid transport at ER-Golgi contact sites

T Naito, H Yang, DHZ Koh, D Mahajan, L Lu… - Nature …, 2023 - nature.com
Abnormal distribution of cellular cholesterol is associated with numerous diseases, including
cardiovascular and neurodegenerative diseases. Regulated transport of cholesterol is …

Visualization of accessible cholesterol using a GRAM domain-based biosensor

DHZ Koh, T Naito, M Na, YJ Yeap, P Rozario… - Nature …, 2023 - nature.com
Cholesterol is important for membrane integrity and cell signaling, and dysregulation of the
distribution of cellular cholesterol is associated with numerous diseases, including …

Lipid exchange at ER–trans-Golgi contact sites governs polarized cargo sorting

D Kovács, AS Gay, D Debayle, S Abélanet… - Journal of Cell …, 2023 - rupress.org
Oxysterol binding protein (OSBP) extracts cholesterol from the ER to deliver it to the TGN via
counter exchange and subsequent hydrolysis of the phosphoinositide PI (4) P. Here, we …

Inhibition of OSBP blocks retrograde trafficking by inducing partial Golgi degradation

N He, L Depta, C Rossetti, L Caramelle… - Nature Chemical …, 2024 - nature.com
Sterol-binding proteins are important regulators of lipid homeostasis and membrane
integrity; however, the discovery of selective modulators can be challenging due to structural …

VAP-A intrinsically disordered regions enable versatile tethering at membrane contact sites

M Subra, M Dezi, J Bigay, S Lacas-Gervais… - Developmental Cell, 2023 - cell.com
Membrane contact sites (MCSs) are heterogeneous in shape, composition, and dynamics.
Despite this diversity, VAP proteins act as receptors for multiple FFAT motif-containing …

Structure-Based design of a lead compound derived from natural schweinfurthins with antitumor properties that target oxysterol-binding protein

G Jézéquel, C Rampal, C Guimard… - Journal of Medicinal …, 2023 - ACS Publications
Schweinfurthins (SWs) are naturally occurring prenylated stilbenes with promising
anticancer properties. They act through a novel mechanism of action similar to that of other …

Ligand recognition by the lipid transfer domain of human OSBP is important for enterovirus replication

J Kobayashi, M Arita, S Sakai, H Kojima… - ACS Infectious …, 2022 - ACS Publications
Oxysterol-binding protein (OSBP), which transports cholesterol and phosphatidylinositol 4-
monophosphate (PtdIns [4] P) between different organelles, serves as a conserved host …