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Katiraei S, de Vries MR, Costain AH, Thiem K, Hoving LR, van Diepen JA, Smits HH, Bouter KE, Rensen PCN, Quax PHA, Nieuwdorp M, Netea MG, de Vos WM, Cani PD, Belzer C, van Dijk KW, Berbée JFP, van Harmelen V. Akkermansia muciniphila Exerts Lipid-Lowering and Immunomodulatory Effects without Affecting Neointima Formation in Hyperlipidemic APOE*3-Leiden.CETP Mice. Mol Nutr Food Res 2020; 64:e1900732. [PMID: 31389129 PMCID: PMC7507188 DOI: 10.1002/mnfr.201900732] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2019] [Indexed: 12/21/2022]
Abstract
SCOPE Akkermansia muciniphila (A. muciniphila) is an intestinal commensal with anti-inflammatory properties both in the intestine and other organs. The aim is to investigate the effects of oral administration of A. muciniphila on lipid metabolism, immunity, and cuff-induced neointima formation in hyperlipidemic APOE*3-Leiden (E3L).CETP mice. METHODS AND RESULTS Hyperlipidemic male E3L.CETP mice are daily treated with 2 × 108 CFU A. muciniphila by oral gavage for 4 weeks and the effects are determined on plasma lipid levels, immune parameters, and cuff-induced neointima formation and composition. A. muciniphila administration lowers body weight and plasma total cholesterol and triglycerides levels. A. muciniphila influences the immune cell composition in mesenteric lymph nodes, as evident from an increased total B cell population, while reducing the total T cell and neutrophil populations. Importantly, A. muciniphila reduces the expression of the activation markers MHCII on dendritic cells and CD86 on B cells. A. muciniphila also increases whole blood ex vivo lipopolysaccharide-stimulated IL-10 release. Finally, although treatment with A. muciniphila improves lipid metabolism and immunity, it does not affect neointima formation or composition. CONCLUSIONS Four weeks of treatment with A. muciniphila exerts lipid-lowering and immunomodulatory effects, which are insufficient to inhibit neointima formation in hyperlipidemic E3L.CETP mice.
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Affiliation(s)
- Saeed Katiraei
- Department of Human GeneticsLeiden University Medical Center2300 RCLeidenThe Netherlands
- Einthoven Laboratory for Experimental Vascular MedicineLeiden University Medical Center2333 ZALeidenThe Netherlands
| | - Margreet R. de Vries
- Einthoven Laboratory for Experimental Vascular MedicineLeiden University Medical Center2333 ZALeidenThe Netherlands
- Department of SurgeryLeiden University Medical Center2333 ZALeidenThe Netherlands
| | - Alice H. Costain
- Department of ParasitologyLeiden University Medical Center2333 ZALeidenThe Netherlands
| | - Kathrin Thiem
- Department of Internal MedicineRadboud UMC6525 GANijmegenThe Netherlands
| | - Lisa R. Hoving
- Department of Human GeneticsLeiden University Medical Center2300 RCLeidenThe Netherlands
- Einthoven Laboratory for Experimental Vascular MedicineLeiden University Medical Center2333 ZALeidenThe Netherlands
| | | | - Hermelijn H. Smits
- Department of ParasitologyLeiden University Medical Center2333 ZALeidenThe Netherlands
| | - Kristien E. Bouter
- Department of Vascular MedicineAcademic Medical Center1105 AZAmsterdamThe Netherlands
| | - Patrick C. N. Rensen
- Einthoven Laboratory for Experimental Vascular MedicineLeiden University Medical Center2333 ZALeidenThe Netherlands
- Department of Medicinedivision of EndocrinologyLeiden University Medical Center2333 ZALeidenThe Netherlands
| | - Paul H. A. Quax
- Einthoven Laboratory for Experimental Vascular MedicineLeiden University Medical Center2333 ZALeidenThe Netherlands
- Department of SurgeryLeiden University Medical Center2333 ZALeidenThe Netherlands
| | - Max Nieuwdorp
- Department of Vascular MedicineAcademic Medical Center1105 AZAmsterdamThe Netherlands
| | - Mihai G. Netea
- Department of Internal MedicineRadboud UMC6525 GANijmegenThe Netherlands
| | - Willem M. de Vos
- Laboratory of MicrobiologyWageningen University6708 WEWageningenThe Netherlands
| | - Patrice D. Cani
- Université catholique de LouvainLouvain Drug Research InstituteWELBIO (Walloon Excellence in Life sciences and BIOtechnology)Metabolism and Nutrition Research Group1200BrusselsBelgium
| | - Clara Belzer
- Laboratory of MicrobiologyWageningen University6708 WEWageningenThe Netherlands
| | - Ko Willems van Dijk
- Department of Human GeneticsLeiden University Medical Center2300 RCLeidenThe Netherlands
- Einthoven Laboratory for Experimental Vascular MedicineLeiden University Medical Center2333 ZALeidenThe Netherlands
- Department of Medicinedivision of EndocrinologyLeiden University Medical Center2333 ZALeidenThe Netherlands
| | - Jimmy F. P. Berbée
- Einthoven Laboratory for Experimental Vascular MedicineLeiden University Medical Center2333 ZALeidenThe Netherlands
- Department of Medicinedivision of EndocrinologyLeiden University Medical Center2333 ZALeidenThe Netherlands
| | - Vanessa van Harmelen
- Department of Human GeneticsLeiden University Medical Center2300 RCLeidenThe Netherlands
- Einthoven Laboratory for Experimental Vascular MedicineLeiden University Medical Center2333 ZALeidenThe Netherlands
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2
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Hoving LR, Katiraei S, Pronk A, Heijink M, Vonk KKD, Amghar-El Bouazzaoui F, Vermeulen R, Drinkwaard L, Giera M, van Harmelen V, Willems van Dijk K. The prebiotic inulin modulates gut microbiota but does not ameliorate atherosclerosis in hypercholesterolemic APOE*3-Leiden.CETP mice. Sci Rep 2018; 8:16515. [PMID: 30409998 PMCID: PMC6224586 DOI: 10.1038/s41598-018-34970-y] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2018] [Accepted: 10/26/2018] [Indexed: 12/22/2022] Open
Abstract
Gut microbiota have been implicated in the development of atherosclerosis and cardiovascular disease. Since the prebiotic inulin is thought to beneficially affect gut microbiota, we aimed to determine the effect of inulin supplementation on atherosclerosis development in APOE*3-Leiden.CETP (E3L.CETP) mice. Female E3L.CETP mice were fed a western-type diet containing 0.1% or 0.5% cholesterol with or without 10% inulin. The effects of inulin were determined on: microbiota composition, cecal short-chain fatty acid (SCFA) levels, plasma lipid levels, atherosclerosis development, hepatic morphology and hepatic inflammation. Inulin with 0.5% dietary cholesterol increased specific bacterial genera and elevated levels of cecal SCFAs, but did not affect plasma cholesterol levels or atherosclerosis development. Surprisingly, inulin resulted in mild hepatic inflammation as shown by increased expression of inflammation markers. However, these effects were not accompanied by increased hepatic macrophage number. Analogously, inulin induced mild steatosis and increased hepatocyte size, but did not affect hepatic triglyceride content. Inulin with 0.1% dietary cholesterol did not affect hepatic morphology, nor hepatic expression of inflammation markers. Overall, inulin did not reduce hypercholesterolemia or atherosclerosis development in E3L.CETP mice despite showing clear prebiotic activity, but resulted in manifestations of hepatic inflammation when combined with a high percentage of dietary cholesterol.
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Affiliation(s)
- Lisa R Hoving
- Department of Human Genetics, Leiden University Medical Center (LUMC), 2300 RC, Leiden, The Netherlands. .,Einthoven Laboratory for Experimental Vascular Medicine, Leiden University Medical Center (LUMC), 2300 RC, Leiden, The Netherlands.
| | - Saeed Katiraei
- Department of Human Genetics, Leiden University Medical Center (LUMC), 2300 RC, Leiden, The Netherlands.,Einthoven Laboratory for Experimental Vascular Medicine, Leiden University Medical Center (LUMC), 2300 RC, Leiden, The Netherlands
| | - Amanda Pronk
- Department of Human Genetics, Leiden University Medical Center (LUMC), 2300 RC, Leiden, The Netherlands.,Einthoven Laboratory for Experimental Vascular Medicine, Leiden University Medical Center (LUMC), 2300 RC, Leiden, The Netherlands
| | - Marieke Heijink
- Center for Proteomics and Metabolomics, Leiden University Medical Center (LUMC), 2300 RC, Leiden, The Netherlands
| | - Kelly K D Vonk
- Department of Human Genetics, Leiden University Medical Center (LUMC), 2300 RC, Leiden, The Netherlands
| | | | - Rosalie Vermeulen
- Department of Human Genetics, Leiden University Medical Center (LUMC), 2300 RC, Leiden, The Netherlands
| | - Lizette Drinkwaard
- Department of Human Genetics, Leiden University Medical Center (LUMC), 2300 RC, Leiden, The Netherlands
| | - Martin Giera
- Center for Proteomics and Metabolomics, Leiden University Medical Center (LUMC), 2300 RC, Leiden, The Netherlands
| | - Vanessa van Harmelen
- Department of Human Genetics, Leiden University Medical Center (LUMC), 2300 RC, Leiden, The Netherlands.,Einthoven Laboratory for Experimental Vascular Medicine, Leiden University Medical Center (LUMC), 2300 RC, Leiden, The Netherlands
| | - Ko Willems van Dijk
- Department of Human Genetics, Leiden University Medical Center (LUMC), 2300 RC, Leiden, The Netherlands. .,Einthoven Laboratory for Experimental Vascular Medicine, Leiden University Medical Center (LUMC), 2300 RC, Leiden, The Netherlands. .,Department of Medicine, division Endocrinology, Leiden University Medical Center (LUMC), 2300 RC, Leiden, The Netherlands.
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3
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Hoving LR, van der Zande HJP, Pronk A, Guigas B, Willems van Dijk K, van Harmelen V. Dietary yeast-derived mannan oligosaccharides have immune-modulatory properties but do not improve high fat diet-induced obesity and glucose intolerance. PLoS One 2018; 13:e0196165. [PMID: 29723205 PMCID: PMC5933760 DOI: 10.1371/journal.pone.0196165] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2017] [Accepted: 04/06/2018] [Indexed: 12/13/2022] Open
Abstract
The indigestible mannan oligosaccharides (MOS) derived from the outer cell wall of yeast Saccharomyces cerevisiae have shown potential to reduce inflammation. Since inflammation is one of the underlying mechanisms involved in the development of obesity-associated metabolic dysfunctions, we aimed to determine the effect of dietary supplementation with MOS on inflammation and metabolic homeostasis in lean and diet-induced obese mice. Male C57BL/6 mice were fed either a low fat diet (LFD) or a high fat diet (HFD) with, respectively, 10% or 45% energy derived from lard fat, with or without 1% MOS for 17 weeks. Body weight and composition were measured throughout the study. After 12 weeks of intervention, whole-body glucose tolerance was assessed and in week 17 immune cell composition was determined in mesenteric white adipose tissue (mWAT) and liver by flow cytometry and RT-qPCR. In LFD-fed mice, MOS supplementation induced a significant increase in the abundance of macrophages and eosinophils in mWAT. A similar trend was observed in hepatic macrophages. Although HFD feeding induced a classical shift from the anti-inflammatory M2-like macrophages towards the pro-inflammatory M1-like macrophages in both mWAT and liver from control mice, MOS supplementation had no effect on this obesity-driven immune response. Finally, MOS supplementation did not improve whole-body glucose homeostasis in both lean and obese mice.Altogether, our data showed that MOS had extra-intestinal immune modulatory properties in mWAT and liver. However these effects were not substantial enough to significantly ameliorate HFD-induced glucose intolerance or inflammation.
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Affiliation(s)
- Lisa R. Hoving
- Department of Human Genetics, Leiden University Medical Center, Leiden, The Netherlands
- Einthoven Laboratory for Experimental Vascular Medicine, Leiden University Medical Center, Leiden, The Netherlands
- * E-mail:
| | | | - Amanda Pronk
- Department of Human Genetics, Leiden University Medical Center, Leiden, The Netherlands
- Einthoven Laboratory for Experimental Vascular Medicine, Leiden University Medical Center, Leiden, The Netherlands
| | - Bruno Guigas
- Department of Parasitology, Leiden University Medical Center, Leiden, The Netherlands
- Department of Molecular Cell Biology, Leiden University Medical Center, Leiden, The Netherlands
| | - Ko Willems van Dijk
- Department of Human Genetics, Leiden University Medical Center, Leiden, The Netherlands
- Einthoven Laboratory for Experimental Vascular Medicine, Leiden University Medical Center, Leiden, The Netherlands
- Department of Medicine, division Endocrinology, Leiden University Medical Center, Leiden, The Netherlands
| | - Vanessa van Harmelen
- Department of Human Genetics, Leiden University Medical Center, Leiden, The Netherlands
- Einthoven Laboratory for Experimental Vascular Medicine, Leiden University Medical Center, Leiden, The Netherlands
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R. Hoving L, Katiraei S, Heijink M, Pronk A, van der Wee‐Pals L, Streefland T, Giera M, Willems van Dijk K, van Harmelen V. Dietary Mannan Oligosaccharides Modulate Gut Microbiota, Increase Fecal Bile Acid Excretion, and Decrease Plasma Cholesterol and Atherosclerosis Development. Mol Nutr Food Res 2018; 62:e1700942. [PMID: 29665623 PMCID: PMC6001637 DOI: 10.1002/mnfr.201700942] [Citation(s) in RCA: 49] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2017] [Revised: 03/15/2018] [Indexed: 12/31/2022]
Abstract
SCOPE Mannan oligosaccharides (MOS) have proven effective at improving growth performance, while also reducing hyperlipidemia and inflammation. As atherosclerosis is accelerated both by hyperlipidemia and inflammation, we aim to determine the effect of dietary MOS on atherosclerosis development in hyperlipidemic ApoE*3-Leiden.CETP (E3L.CETP) mice, a well-established model for human-like lipoprotein metabolism. METHODS AND RESULTS Female E3L.CETP mice were fed a high-cholesterol diet, with or without 1% MOS for 14 weeks. MOS substantially decreased atherosclerotic lesions up to 54%, as assessed in the valve area of the aortic root. In blood, IL-1RA, monocyte subtypes, lipids, and bile acids (BAs) were not affected by MOS. Gut microbiota composition was determined using 16S rRNA gene sequencing and MOS increased the abundance of cecal Bacteroides ovatus. MOS did not affect fecal excretion of cholesterol, but increased fecal BAs as well as butyrate in cecum as determined by gas chromatography mass spectrometry. CONCLUSION MOS decreased the onset of atherosclerosis development via lowering of plasma cholesterol levels. These effects were accompanied by increased cecal butyrate and fecal excretion of BAs, presumably mediated via interactions of MOS with the gut microbiota.
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Affiliation(s)
- Lisa R. Hoving
- Department of Human GeneticsLeiden University Medical CenterLeiden2300 RCThe Netherlands
- Einthoven Laboratory for Experimental Vascular MedicineLeiden University Medical CenterLeiden2300 RCThe Netherlands
| | - Saeed Katiraei
- Department of Human GeneticsLeiden University Medical CenterLeiden2300 RCThe Netherlands
- Einthoven Laboratory for Experimental Vascular MedicineLeiden University Medical CenterLeiden2300 RCThe Netherlands
| | - Marieke Heijink
- Center for Proteomics and MetabolomicsLeiden University Medical CenterLeiden2333 ZAThe Netherlands
| | - Amanda Pronk
- Department of Human GeneticsLeiden University Medical CenterLeiden2300 RCThe Netherlands
- Einthoven Laboratory for Experimental Vascular MedicineLeiden University Medical CenterLeiden2300 RCThe Netherlands
| | - Lianne van der Wee‐Pals
- Einthoven Laboratory for Experimental Vascular MedicineLeiden University Medical CenterLeiden2300 RCThe Netherlands
- Department of MedicineDivision of EndocrinologyLeiden University Medical CenterLeiden2333 ZAThe Netherlands
| | - Trea Streefland
- Department of MedicineDivision of EndocrinologyLeiden University Medical CenterLeiden2333 ZAThe Netherlands
| | - Martin Giera
- Center for Proteomics and MetabolomicsLeiden University Medical CenterLeiden2333 ZAThe Netherlands
| | - Ko Willems van Dijk
- Department of Human GeneticsLeiden University Medical CenterLeiden2300 RCThe Netherlands
- Einthoven Laboratory for Experimental Vascular MedicineLeiden University Medical CenterLeiden2300 RCThe Netherlands
- Department of MedicineDivision of EndocrinologyLeiden University Medical CenterLeiden2333 ZAThe Netherlands
| | - Vanessa van Harmelen
- Department of Human GeneticsLeiden University Medical CenterLeiden2300 RCThe Netherlands
- Einthoven Laboratory for Experimental Vascular MedicineLeiden University Medical CenterLeiden2300 RCThe Netherlands
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5
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Hoving LR, de Vries MR, de Jong RCM, Katiraei S, Pronk A, Quax PHA, van Harmelen V, Willems van Dijk K. The Prebiotic Inulin Aggravates Accelerated Atherosclerosis in Hypercholesterolemic APOE*3-Leiden Mice. Nutrients 2018; 10:nu10020172. [PMID: 29401645 PMCID: PMC5852748 DOI: 10.3390/nu10020172] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2018] [Revised: 01/25/2018] [Accepted: 01/25/2018] [Indexed: 12/19/2022] Open
Abstract
The prebiotic inulin has proven effective at lowering inflammation and plasma lipid levels. As atherosclerosis is provoked by both inflammation and hyperlipidemia, we aimed to determine the effect of inulin supplementation on atherosclerosis development in hypercholesterolemic APOE*3-Leiden (E3L) mice. Male E3L mice were fed a high-cholesterol (1%) diet, supplemented with or without 10% inulin for 5 weeks. At week 3, a non-constrictive cuff was placed around the right femoral artery to induce accelerated atherosclerosis. At week 5, vascular pathology was determined by lesion thickness, vascular remodeling, and lesion composition. Throughout the study, plasma lipids were measured and in week 5, blood monocyte subtypes were determined using flow cytometry analysis. In contrast to our hypothesis, inulin exacerbated atherosclerosis development, characterized by increased lesion formation and outward vascular remodeling. The lesions showed increased number of macrophages, smooth muscle cells, and collagen content. No effects on blood monocyte composition were found. Inulin significantly increased plasma total cholesterol levels and total cholesterol exposure. In conclusion, inulin aggravated accelerated atherosclerosis development in hypercholesterolemic E3L mice, accompanied by adverse lesion composition and outward remodeling. This process was not accompanied by differences in blood monocyte composition, suggesting that the aggravated atherosclerosis development was driven by increased plasma cholesterol.
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Affiliation(s)
- Lisa R Hoving
- Department of Human Genetics and Einthoven Laboratory for Experimental Medicine, Leiden University Medical Center (LUMC), 2300 RC Leiden, The Netherlands.
| | - Margreet R de Vries
- Department of Surgery and Einthoven Laboratory for Experimental Medicine, Leiden University Medical Center (LUMC), 2300 RC Leiden, The Netherlands.
| | - Rob C M de Jong
- Department of Surgery and Einthoven Laboratory for Experimental Medicine, Leiden University Medical Center (LUMC), 2300 RC Leiden, The Netherlands.
| | - Saeed Katiraei
- Department of Human Genetics and Einthoven Laboratory for Experimental Medicine, Leiden University Medical Center (LUMC), 2300 RC Leiden, The Netherlands.
| | - Amanda Pronk
- Department of Human Genetics and Einthoven Laboratory for Experimental Medicine, Leiden University Medical Center (LUMC), 2300 RC Leiden, The Netherlands.
| | - Paul H A Quax
- Department of Surgery and Einthoven Laboratory for Experimental Medicine, Leiden University Medical Center (LUMC), 2300 RC Leiden, The Netherlands.
| | - Vanessa van Harmelen
- Department of Human Genetics and Einthoven Laboratory for Experimental Medicine, Leiden University Medical Center (LUMC), 2300 RC Leiden, The Netherlands.
| | - Ko Willems van Dijk
- Department of Human Genetics and Einthoven Laboratory for Experimental Medicine, Leiden University Medical Center (LUMC), 2300 RC Leiden, The Netherlands.
- Department of Medicine, Division Endocrinology, Leiden University Medical Center (LUMC), 2300 RC Leiden, The Netherlands.
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6
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Abstract
Short-chain fatty acids, the end products of fermentation of dietary fibers by the gut microbiota, have been shown to exert multiple effects on mammalian metabolism. For the analysis of short-chain fatty acids, gas chromatography-mass spectrometry is a very powerful and reliable method. Here, we describe a fast, reliable, and reproducible method for the separation and quantification of short-chain fatty acids in mouse feces, cecum content, and blood samples (i.e., plasma or serum) using gas chromatography-mass spectrometry. The short-chain fatty acids analyzed include acetic acid, propionic acid, butyric acid, valeric acid, hexanoic acid, and heptanoic acid.
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Affiliation(s)
- Lisa R Hoving
- Einthoven Laboratory for Experimental Vascular Medicine, Department of Human Genetics, Leiden University Medical Center (LUMC), Leiden, The Netherlands
| | - Marieke Heijink
- Center for Proteomics and Metabolomics, Leiden University Medical Center (LUMC), Leiden, The Netherlands
| | - Vanessa van Harmelen
- Einthoven Laboratory for Experimental Vascular Medicine, Department of Human Genetics, Leiden University Medical Center (LUMC), Leiden, The Netherlands
| | - Ko Willems van Dijk
- Einthoven Laboratory for Experimental Vascular Medicine, Department of Human Genetics, Leiden University Medical Center (LUMC), Leiden, The Netherlands
- Division of Endocrinology, Department of Medicine, Leiden University Medical Center (LUMC), Leiden, The Netherlands
| | - Martin Giera
- Center for Proteomics and Metabolomics, Leiden University Medical Center (LUMC), Leiden, The Netherlands.
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7
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Katiraei S, Hoving LR, van Beek L, Mohamedhoesein S, Carlotti F, van Diepen JA, Rensen PCN, Netea MG, Willems van Dijk K, Berbée JFP, van Harmelen V. BMT decreases HFD-induced weight gain associated with decreased preadipocyte number and insulin secretion. PLoS One 2017; 12:e0175524. [PMID: 28445487 PMCID: PMC5406023 DOI: 10.1371/journal.pone.0175524] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2017] [Accepted: 03/27/2017] [Indexed: 01/18/2023] Open
Abstract
Experimental bone marrow transplantation (BMT) in mice is commonly used to assess the role of immune cell-specific genes in various pathophysiological settings. The application of BMT in obesity research is hampered by the significant reduction in high-fat diet (HFD)-induced obesity. We set out to characterize metabolic tissues that may be affected by the BMT procedure and impair the HFD-induced response. Male C57BL/6 mice underwent syngeneic BMT using lethal irradiation. After a recovery period of 8 weeks they were fed a low-fat diet (LFD) or HFD for 16 weeks. HFD-induced obesity was reduced in mice after BMT as compared to HFD-fed control mice, characterized by both a reduced fat (-33%; p<0.01) and lean (-11%; p<0.01) mass, while food intake and energy expenditure were unaffected. As compared to control mice, BMT-treated mice had a reduced mature adipocyte volume (approx. -45%; p<0.05) and reduced numbers of preadipocytes (-38%; p<0.05) and macrophages (-62%; p<0.05) in subcutaneous, gonadal and visceral white adipose tissue. In BMT-treated mice, pancreas weight (-46%; p<0.01) was disproportionally decreased. This was associated with reduced plasma insulin (-68%; p<0.05) and C-peptide (-37%; p<0.01) levels and a delayed glucose clearance in BMT-treated mice on HFD as compared to control mice. In conclusion, the reduction in HFD-induced obesity after BMT in mice is at least partly due to alterations in the adipose tissue cell pool composition as well as to a decreased pancreatic secretion of the anabolic hormone insulin. These effects should be considered when interpreting results of experimental BMT in metabolic studies.
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Affiliation(s)
- Saeed Katiraei
- Department of Human Genetics, Leiden University Medical Center, Leiden, The Netherlands.,Einthoven Laboratory for Experimental Vascular Medicine, Leiden University Medical Center, Leiden, The Netherlands
| | - Lisa R Hoving
- Department of Human Genetics, Leiden University Medical Center, Leiden, The Netherlands.,Einthoven Laboratory for Experimental Vascular Medicine, Leiden University Medical Center, Leiden, The Netherlands
| | - Lianne van Beek
- Department of Human Genetics, Leiden University Medical Center, Leiden, The Netherlands.,Einthoven Laboratory for Experimental Vascular Medicine, Leiden University Medical Center, Leiden, The Netherlands
| | - Sharida Mohamedhoesein
- Department of Human Genetics, Leiden University Medical Center, Leiden, The Netherlands.,Einthoven Laboratory for Experimental Vascular Medicine, Leiden University Medical Center, Leiden, The Netherlands
| | - Françoise Carlotti
- Einthoven Laboratory for Experimental Vascular Medicine, Leiden University Medical Center, Leiden, The Netherlands.,Department of Medicine, division of Nephrology Leiden University Medical Center, Leiden, The Netherlands
| | | | - Patrick C N Rensen
- Einthoven Laboratory for Experimental Vascular Medicine, Leiden University Medical Center, Leiden, The Netherlands.,Department of Medicine, division of Endocrinology Leiden University Medical Center, Leiden, The Netherlands
| | - Mihai G Netea
- Department of Internal Medicine, Radboud UMC, Nijmegen, The Netherlands
| | - Ko Willems van Dijk
- Department of Human Genetics, Leiden University Medical Center, Leiden, The Netherlands.,Einthoven Laboratory for Experimental Vascular Medicine, Leiden University Medical Center, Leiden, The Netherlands.,Department of Medicine, division of Endocrinology Leiden University Medical Center, Leiden, The Netherlands
| | - Jimmy F P Berbée
- Einthoven Laboratory for Experimental Vascular Medicine, Leiden University Medical Center, Leiden, The Netherlands.,Department of Medicine, division of Endocrinology Leiden University Medical Center, Leiden, The Netherlands
| | - Vanessa van Harmelen
- Department of Human Genetics, Leiden University Medical Center, Leiden, The Netherlands.,Einthoven Laboratory for Experimental Vascular Medicine, Leiden University Medical Center, Leiden, The Netherlands
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Konings J, Hoving LR, Ariëns RS, Hethershaw EL, Ninivaggi M, Hardy LJ, de Laat B, ten Cate H, Philippou H, Govers-Riemslag JW. The role of activated coagulation factor XII in overall clot stability and fibrinolysis. Thromb Res 2015; 136:474-80. [DOI: 10.1016/j.thromres.2015.06.028] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2015] [Revised: 06/14/2015] [Accepted: 06/18/2015] [Indexed: 11/26/2022]
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