Publications de Emine Can | EPFL Graph Search

[13C]bicarbonate labelled from hyperpolarized [1-13C]pyruvate is an in vivo marker of hepatic gluconeogenesis in fasted state

Rolf Gruetter, Arnaud Comment, Josefina Adriana Maria Bastiaansen, Hikari Ananda Infinity Yoshihara, Emine Can

Hyperpolarized [1-13C]pyruvate enables direct in vivo assessment of real-time liver enzymatic activities by 13C magnetic resonance. However, the technique usually requires the injection of a highly supraphysiological dose of pyruvate. We herein demonstrate ...

2022

Noninvasive rapid detection of metabolic adaptation in activated human T lymphocytes by hyperpolarized 13C magnetic resonance

Mor-Miri Mishkovsky, Arnaud Comment, Hikari Ananda Infinity Yoshihara, Nicolas Kunz, Emine Can

The metabolic shift induced in human CD4+ T lymphocytes by stimulation is characterized by an upregulation of glycolysis, leading to an augmentation in lactate production. This adaptation has already been highlighted with various techniques and reported in ...

2020

Effects of 3-MPA on in vivo hepatic metabolism of hyperpolarized [1-13C] pyruvate

Rolf Gruetter, Arnaud Comment, Josefina Adriana Maria Bastiaansen, Hikari Ananda Infinity Yoshihara, Emine Can

Ex vivo and in vivo studies on liver metabolism using hyperpolarized [1-13C]pyruvate report do not agree on whether hyperpolarized bicarbonate metabolite production results from pyruvate oxidation or gluconeogenesis. This study tested the ability of hyperp ...

2017

Measurement of metabolic changes in acute doxorubicin-induced cardiotoxicity in mice using hyperpolarized [1-13C]pyruvate

Josefina Adriana Maria Bastiaansen, Hikari Ananda Infinity Yoshihara, Emine Can

Chemotherapy cocktails containing doxorubicin produce irreversible cardiotoxic side effects that may progress to heart failure, which can only be avoided through dose limitation of the chemotherapeutic agents. Increasing evidence suggest that cardiac dysfu ...

2017

LRH-1-dependent programming of mitochondrial glutamine processing drives liver cancer

Johan Auwerx, Kristina Schoonjans, Hadrien Charles Edouard Demagny, Arnaud Comment, Dongryeol Ryu, Xu Wang, Norman Lionel Moullan, Emine Can, Matthias Alexander Sokrates Stein, Maaike Hélène Oosterveer, Pan Xu

Various tumors develop addiction to glutamine to support uncontrolled cell proliferation. Here we identify the nuclear receptor liver receptor homolog 1 (LRH-1) as a key regulator in the process of hepatic tumorigenesis through the coordination of a noncan ...

Cold Spring Harbor Laboratory2016

High-field dissolution dynamic nuclear polarization of [1-C-13]pyruvic acid

Arnaud Comment, Hikari Ananda Infinity Yoshihara, Emine Can

[1-C-13]pyruvate is the most widely used hyperpolarized metabolic magnetic resonance imaging agent. Using a custom-built 7.0 T polarizer operating at 1.0 K and trityl radical-doped [1-C-13] pyruvic acid, unextrapolated solution-state C-13 polarization grea ...

Royal Soc Chemistry2016

Direct Monitoring of γ-Glutamyl Transpeptidase Activity In Vivo Using a Hyperpolarized (13) C-Labeled Molecular Probe

Arnaud Comment, Josefina Adriana Maria Bastiaansen, Hikari Ananda Infinity Yoshihara, Yuhei Takado, Emine Can

The γ-glutamyl transpeptidase (GGT) enzyme plays a central role in glutathione homeostasis. Direct detection of GGT activity could provide critical information for the diagnosis of several pathologies. We propose a new molecular probe, γ-Glu-[1-(13) C]Gly, ...

Wiley-Blackwell2016

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Emine Can