Simultaneous Multi-Harmonic Imaging of Nanoparticles in Tissues for Increased Selectivity

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Metabolic plasticity and glucose transporter redundancy dictate lung adenocarcinoma growth

Caroline Anne-Lyse Contat

Lung cancers represent the leading cause of cancer-related deaths worldwide. These pulmonary cancers count several histological subgroups, whose non-small cell lung cancers, subject of our study. We were precisely interested in the most common subtype of n ...

EPFL2020

Combined deletion of Glut1 and Glut3 impairs lung adenocarcinoma growth

Bernard Lanz, Graham Knott, Rolf Gruetter, Stéphanie Clerc, Nadine Fournier, Caroline Anne-Lyse Contat, Mario Gaetano Lepore, Etienne Meylan, Anders Meibom, Stéphane Laurent Escrig, Justine Pascual, Louise Helene Soegaard Jensen, Pierre-Benoit Bernard Ancey, Silvia Sabatino

Glucose utilization increases in tumors, a metabolic process that is observed clinically by F-18-fluorodeoxyglucose positron emission tomography (F-18-FDG-PET). However, is increased glucose uptake important for tumor cells, and which transporters are impl ...

2020

Modes interplay controls the second harmonic generation dynamics of plasmonic nanostructures

Olivier Martin, Gabriel David Bernasconi, Andrei Kiselev

A large amount of experimental and theoretical works deals with the second harmonic generation from different plasmonic geometries. Since they often consider relatively long optical pulses, many of these studies are focused on the investigation of a quasi- ...

SPIE2020

Tractostorm: The what, why, and how of tractography dissection reproducibility

David Paul Roger Romascano, Alessandro Daducci, Muhamed Barakovic, Gabriel Girard, Maxime Descoteaux

Investigative studies of white matter (WM) brain structures using diffusion MRI (dMRI) tractography frequently require manual WM bundle segmentation, often called "virtual dissection." Human errors and personal decisions make these manual segmentations har ...

Wiley2020

In vivo detection of gamma-glutamyl-transferase up-regulation in glioma using hyperpolarized gamma-glutamyl-[1-C-13]glycine

Hikari Ananda Infinity Yoshihara

Glutathione (GSH) is often upregulated in cancer, where it serves to mitigate oxidative stress. gamma-glutamyl-transferase (GGT) is a key enzyme in GSH homeostasis, and compared to normal brain its expression is elevated in tumors, including in primary gli ...

Nature Research2020

Somatic Mitochondrial DNA Point Mutations Used as Biomarkers to Demonstrate Genomic Heterogeneity in Primary Prostate Cancer

Paul Refinetti

Primary prostate tumor heterogeneity is poorly understood, leaving research efforts with challenges regarding the initiation and advancement of the disease. The growth of tumor cells is accompanied by mutations in nuclear and in mitochondrial genomes. Thus ...

HINDAWI LTD2020

Fat navigators based retrospective motion correction strategies for brain magnetic resonance imaging

Frédéric Gretsch

Magnetic resonance resonance (MRI) is a widely used modality to obtain in vivo tissue information. Clinical applications are near countless, and almost all body parts can be examined using an MR scanner. As the method is non invasive, does not use ionizing ...

EPFL2020

The Tumor Microenvironment as a Driving Force of Breast Cancer Stem Cell Plasticity

Albert Santamaria Martinez

Simple Summary Breast cancer stem cells are a subset of transformed cells that sustain tumor growth and can metastasize to secondary organs. Since metastasis accounts for most cancer deaths, it is of paramount importance to understand the cellular and mole ...

2020

Photocontrolled release of the anticancer drug chlorambucil with caged harmonic nanoparticles

Sandrine Gerber, Luigi Bonacina, Raphaël Jovita De Matos, Jérémy Vuilleumier

While chemotherapy is one of the most used treatments in oncology, the systemic administration of chemotherapeutics generally results in undesired damages to healthy tissues and cells, side effects such as severe nausea and leukopenia, and reduced efficacy ...

Wiley-VHCA AG2020

Surface functionalization of metal oxide harmonic nanoparticles for targeted cancer imaging

Raphaël Jovita De Matos

Cancer is a major health burden worldwide and the leading cause of death in industrialized countries. Early detection is a primary factor of survival and remission rate. Classical imaging methods such as magnetic resonance imaging, ultrasound imaging and m ...

EPFL2020

Eigenmode Analysis in Plasmonics: Application to Second Harmonic Generation and Electron Energy Loss Spectroscopy

Gabriel David Bernasconi

Eigenmodes are central to the study of resonant phenomena in all areas of physics. However, their use in nano-optics seems to have been hindered and delayed for various reasons. First, due to their small size, the response of nanostructures to a far-field ...

EPFL2019