Publications de Laura Capolupo

CERT1 mutations perturb human development by disrupting sphingolipid homeostasis

Bruno Lemaitre, Paolo De Los Rios, Giovanni D'Angelo, Evelyne Ruchti, Sylvia Ho, Samuel Rommelaere, Charlotte Julie Caroline Gehin, Laura Capolupo, Greta Limoni, Huixin Guo

Neural differentiation, synaptic transmission, and action potential propagation depend on membrane sphingolipids, whose metabolism is tightly regulated. Mutations in the ceramide transporter CERT (CERT1), which is involved in sphingolipid biosynthesis, are ...

American Society for Clinical Investigation2023

Sphingolipids control dermal fibroblast heterogeneity

Giovanni D'Angelo, Gioele La Manno, Olivier Burri, Romain Guiet, Sylvia Ho, Alex Russell Lederer, Laura Capolupo, Irina Khven, Galina Glousker

Human cells produce thousands of lipids that change during cell differentiation and can vary across individual cells of the same type. However, we are only starting to characterize the function of these cell-to-cell differences in lipid composition. Here, ...

American Association for the Advancement of Science2022

ER-Golgi-localized proteins TMED2 and TMED10 control the formation of plasma membrane lipid nanodomains

Françoise Gisou van der Goot Grunberg, Laurence Gouzi Abrami, Giovanni D'Angelo, Laura Capolupo, Francisco De Magalhães Sarmento R De Mesquita, Muhammad Umair Anwar, Oksana Andrei Sergeeva, Audrey Geneviève Chuat, Triana Amen

To promote infections, pathogens exploit host cell machineries such as structural elements of the plasma membrane. Studying these interactions and identifying molecular players are ideal for gaining insights into the fundamental biology of the host cell. H ...

Cell Press - Elsevier2022

Golgi maturation-dependent glycoenzyme recycling controls glycosphingolipid biosynthesis and cell growth via GOLPH3

Giovanni D'Angelo, Laura Capolupo, Anthony Vocat, Riccardo Rizzo

Glycosphingolipids are important components of the plasma membrane where they modulate the activities of membrane proteins including signalling receptors. Glycosphingolipid synthesis relies on competing reactions catalysed by Golgi-resident enzymes during ...

WILEY2021

GRASP55 regulates intra-Golgi localization of glycosylation enzymes to control glycosphingolipid biosynthesis

Giovanni D'Angelo, Charlotte Julie Caroline Gehin, Laura Capolupo, Riccardo Rizzo

The Golgi apparatus, the main glycosylation station of the cell, consists of a stack of discontinuous cisternae. Glycosylation enzymes are usually concentrated in one or two specific cisternae along the cis-trans axis of the organelle. How such compartment ...

WILEY2021

Single-cell lipidomics reveals a role for cell-to-cell sphingolipid heterogeneity in fibroblast activation

Laura Capolupo

Cell-to-cell variability plays a key role in tissue patterning by setting initial asymmetry that primes cell fate decisions. Fluctuations in the activity of regulatory molecules can commit individual cells to divergent differentiation pathways, and cell-to ...

EPFL2021

Glycosphingolipid metabolism in cell fate specification

Giovanni D'Angelo, Laura Capolupo, Jaipreet Singh Loomba

Glycosphingolipids (GSLs) are ubiquitous components of eukaryotic plasma membranes that consist of a ceramide backbone linked to a glycan moiety. Both the ceramide and the glycan parts of GSLs display structural variations that result in a remarkable reper ...

2018