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Kristina Schoonjans

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Publications associées (109)

Hepatotoxicity induced by neonatal exposure to diethylstilbestrol is maintained throughout adulthood via the nuclear receptor SHP

Kristina Schoonjans

Background: Liver physiology is sensitive to estrogens, which suggests that the liver might be a target of estrogenic endocrine disrupters (EED). However, the long-term consequences of neonatal exposure to EED on liver physiology have rarely been studied. ...

Informa Healthcare2014

Another Shp on the Horizon for Bile Acids

Kristina Schoonjans, Alessia Perino

Bile acid metabolism is tightly controlled due to the toxic effects of bile acid overload. In this issue, research from the Feng lab reports Shp2 as a novel integrator of hepatic bile acid and FGF15/FGF19 signaling, adding another layer of complexity to th ...

Cell Press2014

Loss of Sirt1 function improves intestinal anti-bacterial defense and protects from colitis-induced colorectal cancer

Elena Katsyuba, Kristina Schoonjans, Johan Auwerx, Dongryeol Ryu, Laurent Mouchiroud, Giuseppe Lo Sasso, Alessandra Piersigilli

Dysfunction of Paneth and goblet cells in the intestine contributes to inflammatory bowel disease (IBD) and colitis-associated colorectal cancer (CAC). Here, we report a role for the NAD+-dependent histone deacetylase SIRT1 in the control of anti-bacterial ...

Public Library of Science2014

The Orphan Nuclear Receptor Nr5a2 Is Essential for Luteinization in the Female Mouse Ovary

Kristina Schoonjans

In the ovary, the follicular granulosa cells express the nuclear receptor Nr5a2 (nuclear receptor subfamily 5 group A member 2), also known as liver receptor homolog-1, and after ovulation, Nr5a2 expression persists in the corpus luteum. Previous studies d ...

Endocrine Soc2014

SUMOylation-Dependent LRH-1/PROX1 Interaction Promotes Atherosclerosis by Decreasing Hepatic Reverse Cholesterol Transport

Matthias Alexander Sokrates Stein, Kristina Schoonjans, Chikage Mataki, Dongryeol Ryu, Maaike Hélène Oosterveer, Pan Xu, Keir Joe Menzies, Alessia Perino, Xu Wang, Vera Monica Lemos Da Silva

Reverse cholesterol transport (RCT) is an antiatherogenic process in which excessive cholesterol from peripheral tissues is transported to the liver and finally excreted from the body via the bile. The nuclear receptor liver receptor homolog 1 (LRH-1) driv ...

Cell Press2014

TGR5 reduces macrophage migration through mTOR-induced C/EBP beta differential translation

Matthias Alexander Sokrates Stein, Kristina Schoonjans, Mitsunori Nomura, Thijs Pols, Alessia Perino

The bile acid-responsive G protein-coupled receptor TGR5 is involved in several metabolic processes, and recent studies suggest that TGR5 activation may promote pathways that are protective against diet-induced diabetes. Here, we investigated the role of m ...

American Society for Clinical Investigation2014

Hepatic glucose sensing and integrative pathways in the liver

Kristina Schoonjans, Maaike Hélène Oosterveer

The hepatic glucose-sensing system is a functional network of enzymes and transcription factors that is critical for the maintenance of energy homeostasis and systemic glycemia. Here we review the recent literature on its components and metabolic actions. ...

Springer Basel Ag2014

Metabolic Characterization of a Sirt5 deficient mouse model

Kristina Schoonjans, Johan Auwerx, Lilia Noriega Lopez, Jiujiu Yu, Norman Lionel Moullan

Sirt5, localized in the mitochondria, is a member of sirtuin family of NAD(+)-dependent deacetylases. Sirt5 was shown to deacetylate and activate carbamoyl phosphate synthase 1. Most recently, Sirt5 was reported to be the predominant protein desuccinylase ...

Nature Publishing Group2013

NR5A2 Regulates Lhb and Fshb Transcription in Gonadotrope-Like Cells In Vitro, but Is Dispensable for Gonadotropin Synthesis and Fertility In Vivo

Kristina Schoonjans, Johan Auwerx, Xin Zhou, Vikas Kumar, Yiping Wang

Successful mammalian reproduction depends on proper synthesis of the pituitary-derived glycoprotein hormones, luteinizing hormone (LH) and follicle-stimulating hormone (FSH). Several transcription factors cooperate to activate cell-specific and hormone-reg ...

Public Library of Science2013

TGR5, bile acids and the metabolic syndrome

Kristina Schoonjans

Federation Amer Soc Exp Biol2013

Probing the Binding Site of Bile Acids in TGR5

Kristina Schoonjans, Johan Auwerx, Thijs Pols

TGR5 is a G-protein-coupled receptor (GPCR) mediating cellular responses to bile acids (BAs). Although some efforts have been devoted to generate homology models of TGR5 and draw structure-activity relationships of BAs, none of these studies has hitherto d ...

American Chemical Society2013

Liver receptor homolog-1 is essential for pregnancy

Kristina Schoonjans

Successful pregnancy requires coordination of an array of signals and factors from multiple tissues. One such element, liver receptor homolog-1 (Lrh-1), is an orphan nuclear receptor that regulates metabolism and hormone synthesis(1). It is strongly expres ...

Nature Publishing Group2013

The Receptor TGR5 Protects the Liver From Bile Acid Overload During Liver Regeneration in Mice

Kristina Schoonjans

Many regulatory pathways are involved in liver regeneration after partial hepatectomy (PH) to initiate growth, protect liver cells, and sustain functions of the remnant liver. Bile acids (BAs), whose levels rise in the blood early after PH, stimulate both ...

Wiley-Blackwell2013

The Receptor TGR5 Mediates the Prokinetic Actions of Intestinal Bile Acids and Is Required for Normal Defecation in Mice

Kristina Schoonjans

BACKGROUND & AIMS: Abnormal delivery of bile acids (BAs) to the colon as a result of disease or therapy causes constipation or diarrhea by unknown mechanisms. The G protein-coupled BA receptor TGR5 (or GPBAR1) is expressed by enteric neurons and endocrine ...

W B Saunders Co-Elsevier Inc2013

TGR5 in macrophages is protective against atherosclerosis and insulin resistance

Kristina Schoonjans, Johan Auwerx, Mitsunori Nomura, Thijs Pols

Wiley-Blackwell2012

TGR5 Activation Inhibits Atherosclerosis by Reducing Macrophage Inflammation and Lipid Loading

Kristina Schoonjans, Johan Auwerx, Mitsunori Nomura, Thijs Pols, Taoufiq Harach, Maaike Hélène Oosterveer, Giuseppe Lo Sasso

The G protein-coupled receptor TGR5 has been identified as an important component of the bile acid signaling network, and its activation has been linked to enhanced energy expenditure and improved glycemic control. Here, we demonstrate that activation of T ...

Cell Press2011

The bile acid membrane receptor TGR5 as an emerging target in metabolism and inflammation

Kristina Schoonjans, Johan Auwerx, Lilia Noriega Lopez, Mitsunori Nomura, Thijs Pols

Bile acids (BAs) are amphipathic molecules that facilitate the uptake of lipids, and their levels fluctuate in the intestine as well as in the blood circulation depending on food intake. Besides their role in dietary lipid absorption, bile acids function a ...

Elsevier2011

NCoR1 Is a Conserved Physiological Modulator of Muscle Mass and Oxidative Function

Kristina Schoonjans, Johan Auwerx, Carlos Canto Alvarez, Hiroyasu Yamamoto, Evan Graehl Williams, Laurent Mouchiroud

Transcriptional coregulators control the activity of many transcription factors and are thought to have wide-ranging effects on gene expression patterns. We show here that muscle-specific loss of nuclear receptor corepressor 1 (NCoR1) in mice leads to enha ...

2011

The bile acid membrane receptor TGR5: a valuable metabolic target

Kristina Schoonjans, Johan Auwerx, Lilia Noriega Lopez, Mitsunori Nomura, Thijs Pols

Bile acids (BAs) are amphipathic molecules that facilitate the uptake of lipids, and their levels fluctuate in the intestines as well as in the circulation depending on food intake. Besides their role in dietary lipid absorption, BAs function as signaling ...

2011

Mitochondrial Matrix Calcium Is an Activating Signal for Hormone Secretion

Kristina Schoonjans, Chikage Mataki, Andreas Wiederkehr

Mitochondrial Ca2+ signals have been proposed to accelerate oxidative metabolism and ATP production to match Ca2+-activated energy-consuming processes. Efforts to understand the signaling role of mitochondrial Ca2+ have been hampered by the inability to ma ...

Cell Press2011

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