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Henckel MM, Chun JH, Knaub LA, Pott GB, James GE, Hunter KS, Shandas R, Walker LA, Reusch JEB, Keller AC. Perivascular adipose tissue remodeling impairs vasoreactivity in thermoneutral-housed rats. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.05.09.593330. [PMID: 38798439 PMCID: PMC11118269 DOI: 10.1101/2024.05.09.593330] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2024]
Abstract
Objective Vascular pathology, characterized by impaired vasoreactivity and mitochondrial respiration, differs between the sexes. Housing rats under thermoneutral (TN) conditions causes vascular dysfunction and perturbed metabolism. We hypothesized that perivascular adipose tissue (PVAT), a vasoregulatory adipose depot with brown adipose tissue (BAT) phenotype, remodels to a white adipose (WAT) phenotype in rats housed at TN, driving diminished vasoreactivity in a sex-dependent manner. Methods Male and female Wistar rats were housed at either room temperature (RT) or TN. Endpoints included changes in PVAT morphology, vasoreactivity in vessels with intact PVAT or transferred to PVAT of the oppositely-housed animal, vessel stiffness, vessel mitochondrial respiration and cellular signaling. Results Remodeling of PVAT was observed in rats housed at TN; animals in this environment showed PVAT whitening and displayed diminished aortae vasodilation (p<0.05), different between the sexes. Juxtaposing PVAT from RT rats onto aortae from TN rats in females corrected vasodilation (p<0.05); this did not occur in males. In aortae of all animals housed at TN, mitochondrial respiration was significantly diminished in lipid substrate experiments (p<0.05), and there was significantly less expression of peNOS (p<0.001). Conclusions These data are consistent with TN-induced remodeling of PVAT, notably associated with sex-specific blunting of vasoreactivity, diminished mitochondrial respiration, and altered cellular signaling.
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Affiliation(s)
- Melissa M Henckel
- Division of Endocrinology, Metabolism & Diabetes, University of Colorado Anschutz Medical Campus, Aurora, CO 80045
- Rocky Mountain Regional VA Medical Center, Aurora, CO 80045
| | - Ji Hye Chun
- Division of Endocrinology, Metabolism & Diabetes, University of Colorado Anschutz Medical Campus, Aurora, CO 80045
- Rocky Mountain Regional VA Medical Center, Aurora, CO 80045
| | - Leslie A Knaub
- Division of Endocrinology, Metabolism & Diabetes, University of Colorado Anschutz Medical Campus, Aurora, CO 80045
- Rocky Mountain Regional VA Medical Center, Aurora, CO 80045
| | - Gregory B Pott
- Division of Endocrinology, Metabolism & Diabetes, University of Colorado Anschutz Medical Campus, Aurora, CO 80045
- Rocky Mountain Regional VA Medical Center, Aurora, CO 80045
| | | | - Kendall S Hunter
- Department of Bioengineering, University of Colorado Anschutz Medical Campus, Aurora, CO 80045
| | - Robin Shandas
- Department of Bioengineering, University of Colorado Anschutz Medical Campus, Aurora, CO 80045
| | - Lori A Walker
- Division of Cardiology, University of Colorado Anschutz Medical Campus, Aurora, CO 80045
| | - Jane E-B Reusch
- Division of Endocrinology, Metabolism & Diabetes, University of Colorado Anschutz Medical Campus, Aurora, CO 80045
- Rocky Mountain Regional VA Medical Center, Aurora, CO 80045
| | - Amy C Keller
- Division of Endocrinology, Metabolism & Diabetes, University of Colorado Anschutz Medical Campus, Aurora, CO 80045
- Rocky Mountain Regional VA Medical Center, Aurora, CO 80045
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2
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Christ C, Ocskay Z, Kovács G, Jakus Z. Characterization of Atherosclerotic Mice Reveals a Sex-Dependent Susceptibility to Plaque Calcification but No Major Changes in the Lymphatics in the Arterial Wall. Int J Mol Sci 2024; 25:4046. [PMID: 38612867 PMCID: PMC11012298 DOI: 10.3390/ijms25074046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2024] [Revised: 03/20/2024] [Accepted: 03/27/2024] [Indexed: 04/14/2024] Open
Abstract
Lymphatics participate in reverse cholesterol transport, and their presence in the arterial wall of the great vessels and prior experimental results suggest their possible role in the development of atherosclerosis. The aim of this study was to characterize the lymphatic vasculature of the arterial wall in atherosclerosis. Tissue sections and tissue-cleared aortas of wild-type mice unveiled significant differences in the density of the arterial lymphatic network throughout the arterial tree. Male and female Ldlr-/- and ApoE-/- mice on a Western diet showed sex-dependent differences in plaque formation and calcification. Female mice on a Western diet developed more calcification of atherosclerotic plaques than males. The lymphatic vessels within the aortic wall of these mice showed no major changes regarding the number of lymphatic junctions and end points or the lymphatic area. However, female mice on a Western diet showed moderate dilation of lymphatic vessels in the abdominal aorta and exhibited indications of increased peripheral lymphatic function, findings that require further studies to understand the role of lymphatics in the arterial wall during the development of atherosclerosis.
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Affiliation(s)
| | | | | | - Zoltán Jakus
- Department of Physiology, Semmelweis University School of Medicine, 1094 Budapest, Hungary; (C.C.); (Z.O.); (G.K.)
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3
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Coornaert I, Breynaert A, Hermans N, De Meyer GRY, Martinet W. GPX4 overexpression does not alter atherosclerotic plaque development in ApoE knock-out mice. VASCULAR BIOLOGY (BRISTOL, ENGLAND) 2024; 6:e230020. [PMID: 38717303 PMCID: PMC11227057 DOI: 10.1530/vb-23-0020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Accepted: 05/08/2024] [Indexed: 06/04/2024]
Abstract
Ferroptosis is a type of regulated necrosis that is associated with iron-dependent accumulation of lipid hydroperoxides. Given that iron deposition and lipid peroxidation initiate ferroptosis in atherosclerosis and contribute to further plaque development, we hypothesized that inhibition of ferroptosis could be of value in the treatment of atherosclerosis. Glutathione peroxidase 4 (GPX4) is the only enzyme known capable of reducing lipid hydroperoxides. Previous studies have demonstrated that inactivation of GPX4 results in ferroptosis, while overexpression of GPX4 confers resistance to ferroptosis. In the present study, we examined the impact of GPX4 overexpression on the development of atherosclerotic plaques. GPX4-overexpressing mice (GPX4Tg/+) were crossbred with ApoE-/- mice and fed a western-type diet for 16 weeks. Atherosclerotic plaques of GPX4Tg/+ ApoE-/- mice showed increased GPX4 expression and a reduced amount of lipid hydroperoxides. However, plaque size and composition were not different as compared to control animals. Similarly, GPX4-overexpressing vascular smooth muscle cells and bone marrow-derived macrophages were not protected against lipid peroxidation and cell death triggered by the ferroptosis inducers erastin and 1S,3R-RSL3. We concluded that GPX4 overexpression reduces lipid peroxidation in plaques of ApoE-/- mice, yet GPX4 overexpression is not sufficiently powerful to change plaque size or composition.
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Affiliation(s)
- Isabelle Coornaert
- Laboratory of Physiopharmacology, University of Antwerp, Antwerp, Belgium
- Infla-Med Centre of Excellence, University of Antwerp, Antwerp, Belgium
| | | | - Nina Hermans
- NatuRAPT Research Group, University of Antwerp, Antwerp, Belgium
| | - Guido R Y De Meyer
- Laboratory of Physiopharmacology, University of Antwerp, Antwerp, Belgium
- Infla-Med Centre of Excellence, University of Antwerp, Antwerp, Belgium
| | - Wim Martinet
- Laboratory of Physiopharmacology, University of Antwerp, Antwerp, Belgium
- Infla-Med Centre of Excellence, University of Antwerp, Antwerp, Belgium
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4
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Zhang L, Altemus J, Ding L, Cherepanova O, Byzova TV, Podrez EA. Enhanced Akt3 kinase activity reduces atherosclerosis in hyperlipidemic mice in a gender-dependent manner. J Biol Chem 2023; 299:105425. [PMID: 37926285 PMCID: PMC10716582 DOI: 10.1016/j.jbc.2023.105425] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Revised: 10/10/2023] [Accepted: 10/13/2023] [Indexed: 11/07/2023] Open
Abstract
Akt3 is one of the three members of the serine/threonine protein kinase B (AKT) family, which regulates multiple cellular processes. We have previously demonstrated that global knockout of Akt3 in mice promotes atherogenesis in a macrophage-dependent manner. Whether enhanced Akt3 kinase activity affects atherogenesis is not known. In this study, we crossed atherosclerosis-prone ApoE-/- mice with a mouse strain that has enhanced Akt3 kinase activity (Akt3nmf350) and assessed atherosclerotic lesion formation and the role of macrophages in atherogenesis. Significant reduction in atherosclerotic lesion area and macrophage accumulation in lesions were observed in ApoE-/-/Akt3nmf350 mice fed a Western-type diet. Experiments using chimeric ApoE-/- mice with either ApoE-/-/Akt3nmf350 bone marrow or ApoE-/- bone marrow cells showed that enhanced Akt3 activity specifically in bone marrow-derived cells is atheroprotective. The atheroprotective effect of Akt3nmf350 was more pronounced in male mice. In line with this result, the release of the pro-inflammatory cytokines IL-6, MCP1, TNF-α, and MIP-1α was reduced by macrophages from male but not female ApoE-/-/Akt3nmf350 mice. Levels of IL-6 and TNF-α were also reduced in atherosclerotic lesions of ApoE-/-/Akt3nmf350 male mice compared to ApoE-/- mice. Macrophages from male ApoE-/-/Akt3nmf350 mice were also more resistant to apoptosis in vitro and in vivo and tended to have more pronounced M2 polarization in vitro. These findings demonstrated that enhanced Akt3 kinase activity in macrophages protects mice from atherosclerosis in hyperlipidemic mice in a gender-dependent manner.
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Affiliation(s)
- Lifang Zhang
- Department of Inflammation & Immunity, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio, USA; Department of Chemistry, Cleveland State University, Cleveland, Ohio, USA
| | - Jessica Altemus
- Department of Inflammation & Immunity, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio, USA
| | - Liang Ding
- Department of Inflammation & Immunity, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio, USA
| | - Olga Cherepanova
- Department of Cardiovascular & Metabolic Sciences, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio, USA
| | - Tatiana V Byzova
- Department of Neurosciences, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio, USA
| | - Eugene A Podrez
- Department of Inflammation & Immunity, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio, USA.
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Rentz T, Dorighello GG, dos Santos RR, Barreto LM, Freitas IN, Lazaro CM, Razolli DS, Cazita PM, Oliveira HCF. CETP Expression in Bone-Marrow-Derived Cells Reduces the Inflammatory Features of Atherosclerosis in Hypercholesterolemic Mice. Biomolecules 2023; 13:1556. [PMID: 37892238 PMCID: PMC10605246 DOI: 10.3390/biom13101556] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2023] [Revised: 10/13/2023] [Accepted: 10/17/2023] [Indexed: 10/29/2023] Open
Abstract
CETP activity reduces plasma HDL-cholesterol concentrations, a correlate of an increased risk of atherosclerotic events. However, our recent findings suggest that CETP expression in macrophages promotes an intracellular antioxidant state, reduces free cholesterol accumulation and phagocytosis, and attenuates pro-inflammatory gene expression. To determine whether CETP expression in macrophages affects atherosclerosis development, we transplanted bone marrow from transgenic mice expressing simian CETP or non-expressing littermates into hypercholesterolemic LDL-receptor-deficient mice. The CETP expression did not change the lipid-stained lesion areas but decreased the macrophage content (CD68), neutrophil accumulation (LY6G), and TNF-α aorta content of young male transplanted mice and decreased LY6G, TNF-α, iNOS, and nitrotyrosine (3-NT) in aged female transplanted mice. These findings suggest that CETP expression in bone-marrow-derived cells reduces the inflammatory features of atherosclerosis. These novel mechanistic observations may help to explain the failure of CETP inhibitors in reducing atherosclerotic events in humans.
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Affiliation(s)
- Thiago Rentz
- Department of Structural and Functional Biology, Institute of Biology, State University of Campinas, Campinas 13083-862, SP, Brazil; (T.R.); (G.G.D.); (L.M.B.); (I.N.F.); (C.M.L.)
| | - Gabriel G. Dorighello
- Department of Structural and Functional Biology, Institute of Biology, State University of Campinas, Campinas 13083-862, SP, Brazil; (T.R.); (G.G.D.); (L.M.B.); (I.N.F.); (C.M.L.)
| | - Renata R. dos Santos
- Division of Radiotherapy, Medical School Hospital, Faculty of Medical Sciences, State University of Campinas, Campinas 13083-887, SP, Brazil;
| | - Lohanna M. Barreto
- Department of Structural and Functional Biology, Institute of Biology, State University of Campinas, Campinas 13083-862, SP, Brazil; (T.R.); (G.G.D.); (L.M.B.); (I.N.F.); (C.M.L.)
| | - Israelle N. Freitas
- Department of Structural and Functional Biology, Institute of Biology, State University of Campinas, Campinas 13083-862, SP, Brazil; (T.R.); (G.G.D.); (L.M.B.); (I.N.F.); (C.M.L.)
| | - Carolina M. Lazaro
- Department of Structural and Functional Biology, Institute of Biology, State University of Campinas, Campinas 13083-862, SP, Brazil; (T.R.); (G.G.D.); (L.M.B.); (I.N.F.); (C.M.L.)
| | - Daniela S. Razolli
- Obesity and Comorbidities Research Center, State University of Campinas, Campinas 13083-864, SP, Brazil;
| | - Patricia M. Cazita
- Laboratório de Lípides (LIM10), Hospital das Clínicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo 01246-903, SP, Brazil;
| | - Helena C. F. Oliveira
- Department of Structural and Functional Biology, Institute of Biology, State University of Campinas, Campinas 13083-862, SP, Brazil; (T.R.); (G.G.D.); (L.M.B.); (I.N.F.); (C.M.L.)
- Obesity and Comorbidities Research Center, State University of Campinas, Campinas 13083-864, SP, Brazil;
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6
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Keeter WC, Moriarty AK, Akers R, Ma S, Mussbacher M, Nadler JL, Galkina EV. Neutrophil-specific STAT4 deficiency attenuates atherosclerotic burden and improves plaque stability via reduction in neutrophil activation and recruitment into aortas of Ldlr-/- mice. Front Cardiovasc Med 2023; 10:1175673. [PMID: 37396582 PMCID: PMC10313069 DOI: 10.3389/fcvm.2023.1175673] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Accepted: 05/19/2023] [Indexed: 07/04/2023] Open
Abstract
Background and aims Neutrophils drive atheroprogression and directly contribute to plaque instability. We recently identified signal transducer and activator of transcription 4 (STAT4) as a critical component for bacterial host defense in neutrophils. The STAT4-dependent functions of neutrophils in atherogenesis are unknown. Therefore, we investigated a contributory role of STAT4 in neutrophils during advanced atherosclerosis. Methods We generated myeloid-specific Stat4ΔLysMLdlr-/-, neutrophil-specific Stat4ΔS100A8Ldlr-/-, and control Stat4fl/flLdlr-/- mice. All groups were fed a high-fat/cholesterol diet (HFD-C) for 28 weeks to establish advanced atherosclerosis. Aortic root plaque burden and stability were assessed histologically by Movat pentachrome staining. Nanostring gene expression analysis was performed on isolated blood neutrophils. Flow cytometry was utilized to analyze hematopoiesis and blood neutrophil activation. In vivo homing of neutrophils to atherosclerotic plaques was performed by adoptively transferring prelabeled Stat4ΔLysMLdlr-/- and Stat4fl/flLdlr-/- bone marrow cells into aged atherosclerotic Apoe-/- mice and detected by flow cytometry. Results STAT4 deficiency in both myeloid-specific and neutrophil-specific mice provided similar reductions in aortic root plaque burden and improvements in plaque stability via reduction in necrotic core size, improved fibrous cap area, and increased vascular smooth muscle cell content within the fibrous cap. Myeloid-specific STAT4 deficiency resulted in decreased circulating neutrophils via reduced production of granulocyte-monocyte progenitors in the bone marrow. Neutrophil activation was dampened in HFD-C fed Stat4ΔLysMLdlr-/- mice via reduced mitochondrial superoxide production, attenuated surface expression of degranulation marker CD63, and reduced frequency of neutrophil-platelet aggregates. Myeloid-specific STAT4 deficiency diminished expression of chemokine receptors CCR1 and CCR2 and impaired in vivo neutrophil trafficking to atherosclerotic aorta. Conclusions Our work indicates a pro-atherogenic role for STAT4-dependent neutrophil activation and how it contributes to multiple factors of plaque instability during advanced atherosclerosis in mice.
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Affiliation(s)
- W. Coles Keeter
- Department of Microbiology and Molecular Cell Biology, Eastern Virginia Medical School, Norfolk, VA, United States
| | - Alina K. Moriarty
- Department of Microbiology and Molecular Cell Biology, Eastern Virginia Medical School, Norfolk, VA, United States
- Center for Integrative Neuroscience and Inflammatory Diseases, Eastern Virginia Medical School, Norfolk, VA, United States
| | - Rachel Akers
- Department of Microbiology and Molecular Cell Biology, Eastern Virginia Medical School, Norfolk, VA, United States
- Rush Medical College, Rush University, Chicago, IL, United States
| | - Shelby Ma
- Department of Microbiology and Molecular Cell Biology, Eastern Virginia Medical School, Norfolk, VA, United States
| | - Marion Mussbacher
- Department of Microbiology and Molecular Cell Biology, Eastern Virginia Medical School, Norfolk, VA, United States
- Department of Pharmacology and Toxicology, Institute of Pharmaceutical Sciences, University of Graz, Graz, Austria
| | - Jerry L. Nadler
- Department of Medicine and Pharmacology, New York Medical College, Valhalla, NY, United States
| | - Elena V. Galkina
- Department of Microbiology and Molecular Cell Biology, Eastern Virginia Medical School, Norfolk, VA, United States
- Center for Integrative Neuroscience and Inflammatory Diseases, Eastern Virginia Medical School, Norfolk, VA, United States
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7
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Erikson KM, El-Khouri K, Petric R, Tang C, Chen J, Vasquez DEC, Fordahl SC, Jia Z. Carbon Nanodots Attenuate Lipid Peroxidation in the LDL Receptor Knockout Mouse Brain. Antioxidants (Basel) 2023; 12:antiox12051081. [PMID: 37237947 DOI: 10.3390/antiox12051081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Revised: 04/28/2023] [Accepted: 05/09/2023] [Indexed: 05/28/2023] Open
Abstract
Abnormal cholesterol metabolism can lead to oxidative stress in the brain. Low-density lipoprotein receptor (LDLr) knockout mice are models for studying altered cholesterol metabolism and oxidative stress onset in the brain. Carbon nanodots are a new class of carbon nanomaterials that possess antioxidant properties. The goal of our study was to evaluate the effectiveness of carbon nanodots in preventing brain lipid peroxidation. LDLr knockout mice and wild-type C57BL/6J mice were treated with saline or 2.5 mg/kg bw of carbon nanodots for a 16-week period. Brains were removed and dissected into the cortex, midbrain, and striatum. We measured lipid peroxidation in the mouse brain tissues using the Thiobarbituric Acid Reactive Substances Assay and iron and copper concentrations using Graphite Furnace Atomic Absorption Spectroscopy. We focused on iron and copper due to their association with oxidative stress. Iron concentrations were significantly elevated in the midbrain and striatum of the LDLr knockout mice compared to the C57BL/6J mice, whereas lipid peroxidation was greatest in the midbrain and cortex of the LDLr knockout mice. Treatment with carbon nanodots in the LDLr knockout mice attenuated both the rise in iron and lipid peroxidation, but they had no negative effect in the C57BL/6J mice, indicating the anti-oxidative stress properties of carbon nanodots. We also assessed locomotor and anxiety-like behaviors as functional indicators of lipid peroxidation and found that treatment with carbon nanodots prevented the anxiety-like behaviors displayed by the LDLr knockout mice. Overall, our results show that carbon nanodots are safe and may be an effective nanomaterial for combating the harmful effects caused by lipid peroxidation.
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Affiliation(s)
- Keith M Erikson
- Department of Nutrition, University of North Carolina, Greensboro, NC 27401, USA
| | - Kristina El-Khouri
- Department of Nutrition, University of North Carolina, Greensboro, NC 27401, USA
| | - Radmila Petric
- Department of Biology, University of North Carolina, Greensboro, NC 27401, USA
- Institute for the Environment, University of North Carolina, Chapel-Hill, NC 27517, USA
| | - Chenhao Tang
- Department of Biology, University of North Carolina, Greensboro, NC 27401, USA
| | - Jinlan Chen
- Department of Biology, University of North Carolina, Greensboro, NC 27401, USA
| | | | - Steve C Fordahl
- Department of Nutrition, University of North Carolina, Greensboro, NC 27401, USA
| | - Zhenquan Jia
- Department of Biology, University of North Carolina, Greensboro, NC 27401, USA
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8
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Senatus L, Egaña-Gorroño L, López-Díez R, Bergaya S, Aranda JF, Amengual J, Arivazhagan L, Manigrasso MB, Yepuri G, Nimma R, Mangar KN, Bernadin R, Zhou B, Gugger PF, Li H, Friedman RA, Theise ND, Shekhtman A, Fisher EA, Ramasamy R, Schmidt AM. DIAPH1 mediates progression of atherosclerosis and regulates hepatic lipid metabolism in mice. Commun Biol 2023; 6:280. [PMID: 36932214 PMCID: PMC10023694 DOI: 10.1038/s42003-023-04643-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2022] [Accepted: 03/01/2023] [Indexed: 03/19/2023] Open
Abstract
Atherosclerosis evolves through dysregulated lipid metabolism interwoven with exaggerated inflammation. Previous work implicating the receptor for advanced glycation end products (RAGE) in atherosclerosis prompted us to explore if Diaphanous 1 (DIAPH1), which binds to the RAGE cytoplasmic domain and is important for RAGE signaling, contributes to these processes. We intercrossed atherosclerosis-prone Ldlr-/- mice with mice devoid of Diaph1 and fed them Western diet for 16 weeks. Compared to male Ldlr-/- mice, male Ldlr-/- Diaph1-/- mice displayed significantly less atherosclerosis, in parallel with lower plasma concentrations of cholesterol and triglycerides. Female Ldlr-/- Diaph1-/- mice displayed significantly less atherosclerosis compared to Ldlr-/- mice and demonstrated lower plasma concentrations of cholesterol, but not plasma triglycerides. Deletion of Diaph1 attenuated expression of genes regulating hepatic lipid metabolism, Acaca, Acacb, Gpat2, Lpin1, Lpin2 and Fasn, without effect on mRNA expression of upstream transcription factors Srebf1, Srebf2 or Mxlipl in male mice. We traced DIAPH1-dependent mechanisms to nuclear translocation of SREBP1 in a manner independent of carbohydrate- or insulin-regulated cues but, at least in part, through the actin cytoskeleton. This work unveils new regulators of atherosclerosis and lipid metabolism through DIAPH1.
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Affiliation(s)
- Laura Senatus
- Diabetes Research Program, Department of Medicine, NYU Grossman School of Medicine, NYU Langone Health, New York, NY, USA
| | - Lander Egaña-Gorroño
- Diabetes Research Program, Department of Medicine, NYU Grossman School of Medicine, NYU Langone Health, New York, NY, USA
| | - Raquel López-Díez
- Diabetes Research Program, Department of Medicine, NYU Grossman School of Medicine, NYU Langone Health, New York, NY, USA
| | - Sonia Bergaya
- The Leon H. Charney Division of Cardiology, Department of Medicine, The Marc and Ruti Bell Program in Vascular Biology, NYU Grossman School of Medicine, NYU Langone Health, New York, NY, USA
| | - Juan Francisco Aranda
- Diabetes Research Program, Department of Medicine, NYU Grossman School of Medicine, NYU Langone Health, New York, NY, USA
| | - Jaume Amengual
- The Leon H. Charney Division of Cardiology, Department of Medicine, The Marc and Ruti Bell Program in Vascular Biology, NYU Grossman School of Medicine, NYU Langone Health, New York, NY, USA
| | - Lakshmi Arivazhagan
- Diabetes Research Program, Department of Medicine, NYU Grossman School of Medicine, NYU Langone Health, New York, NY, USA
| | - Michaele B Manigrasso
- Diabetes Research Program, Department of Medicine, NYU Grossman School of Medicine, NYU Langone Health, New York, NY, USA
| | - Gautham Yepuri
- Diabetes Research Program, Department of Medicine, NYU Grossman School of Medicine, NYU Langone Health, New York, NY, USA
| | - Ramesh Nimma
- Diabetes Research Program, Department of Medicine, NYU Grossman School of Medicine, NYU Langone Health, New York, NY, USA
| | - Kaamashri N Mangar
- Diabetes Research Program, Department of Medicine, NYU Grossman School of Medicine, NYU Langone Health, New York, NY, USA
| | - Rollanda Bernadin
- Diabetes Research Program, Department of Medicine, NYU Grossman School of Medicine, NYU Langone Health, New York, NY, USA
| | - Boyan Zhou
- Department of Population Health, Division of Biostatistics, NYU Grossman School of Medicine, NYU Langone Health, New York, NY, USA
| | - Paul F Gugger
- Diabetes Research Program, Department of Medicine, NYU Grossman School of Medicine, NYU Langone Health, New York, NY, USA
| | - Huilin Li
- Department of Population Health, Division of Biostatistics, NYU Grossman School of Medicine, NYU Langone Health, New York, NY, USA
| | - Richard A Friedman
- Biomedical Informatics Shared Resource, Herbert Irving Comprehensive Cancer Center and Department of Biomedical Informatics, Columbia University Irving Medical Center, New York, NY, USA
| | - Neil D Theise
- Department of Pathology, NYU Grossman School of Medicine, NYU Langone Health, New York, USA
| | - Alexander Shekhtman
- Department of Chemistry, The State University of New York at Albany, Albany, NY, USA
| | - Edward A Fisher
- The Leon H. Charney Division of Cardiology, Department of Medicine, The Marc and Ruti Bell Program in Vascular Biology, NYU Grossman School of Medicine, NYU Langone Health, New York, NY, USA
| | - Ravichandran Ramasamy
- Diabetes Research Program, Department of Medicine, NYU Grossman School of Medicine, NYU Langone Health, New York, NY, USA
| | - Ann Marie Schmidt
- Diabetes Research Program, Department of Medicine, NYU Grossman School of Medicine, NYU Langone Health, New York, NY, USA.
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9
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Deletion of Macrophage-Specific Glycogen Synthase Kinase (GSK)-3α Promotes Atherosclerotic Regression in Ldlr−/− Mice. Int J Mol Sci 2022; 23:ijms23169293. [PMID: 36012557 PMCID: PMC9409307 DOI: 10.3390/ijms23169293] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Revised: 08/12/2022] [Accepted: 08/14/2022] [Indexed: 11/29/2022] Open
Abstract
Recent evidence from our laboratory suggests that impeding ER stress–GSK3α/β signaling attenuates the progression and development of atherosclerosis in mouse model systems. The objective of this study was to determine if the tissue-specific genetic ablation of GSK3α/β could promote the regression of established atherosclerotic plaques. Five-week-old low-density lipoprotein receptor knockout (Ldlr−/−) mice were fed a high-fat diet for 16 weeks to promote atherosclerotic lesion formation. Mice were then injected with tamoxifen to induce macrophage-specific GSK3α/β deletion, and switched to standard diet for 12 weeks. All mice were sacrificed at 33 weeks of age and atherosclerosis was quantified and characterized. Female mice with induced macrophage-specific GSK3α deficiency, but not GSK3β deficiency, had reduced plaque volume (~25%) and necrosis (~40%) in the aortic sinus, compared to baseline mice. Atherosclerosis was also significantly reduced (~60%) in the descending aorta. Macrophage-specific GSK3α-deficient mice showed indications of increased plaque stability and reduced inflammation in plaques, as well as increased CCR7 and ABCA1 expression in lesional macrophages, consistent with regressive plaques. These results suggest that GSK3α ablation promotes atherosclerotic plaque regression and identify GSK3α as a potential target for the development of new therapies to treat existing atherosclerotic lesions in patients with cardiovascular disease.
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10
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The Impact of RIPK1 Kinase Inhibition on Atherogenesis: A Genetic and a Pharmacological Approach. Biomedicines 2022; 10:biomedicines10051016. [PMID: 35625752 PMCID: PMC9138372 DOI: 10.3390/biomedicines10051016] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Revised: 04/21/2022] [Accepted: 04/26/2022] [Indexed: 11/17/2022] Open
Abstract
RIPK1 (receptor-interacting serine/threonine-protein kinase 1) enzymatic activity drives both apoptosis and necroptosis, a regulated form of necrosis. Because necroptosis is involved in necrotic core development in atherosclerotic plaques, we investigated the effects of a RIPK1S25D/S25D mutation, which prevents activation of RIPK1 kinase, on atherogenesis in ApoE−/− mice. After 16 weeks of western-type diet (WD), atherosclerotic plaques from ApoE−/− RIPK1S25D/S25D mice were significantly larger compared to ApoE−/− RIPK1+/+ mice (167 ± 34 vs. 78 ± 18 × 103 µm2, p = 0.01). Cell numbers (350 ± 34 vs. 154 ± 33 nuclei) and deposition of glycosaminoglycans (Alcian blue: 31 ± 6 vs. 14 ± 4%, p = 0.023) were increased in plaques from ApoE−/− RIPK1S25D/S25D mice while macrophage content (Mac3: 2.3 ± 0.4 vs. 9.8 ± 2.4%, p = 0.012) was decreased. Plaque apoptosis was not different between both groups. In contrast, pharmacological inhibition of RIPK1 kinase with GSK’547 (10 mg/kg BW/day) in ApoE−/− Fbn1C1039G+/− mice, a model of advanced atherosclerosis, did not alter plaque size after 20 weeks WD, but induced apoptosis (TUNEL: 136 ± 20 vs. 62 ± 9 cells/mm2, p = 0.004). In conclusion, inhibition of RIPK1 kinase activity accelerated plaque progression in ApoE−/− RIPK1S25D/S25D mice and induced apoptosis in GSK’547-treated ApoE−/− Fbn1C1039G+/− mice. Thus, without directly comparing the genetic and pharmacological studies, it can be concluded that targeting RIPK1 kinase activity does not limit atherogenesis.
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11
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Chan YH, Ramji DP. Atherosclerosis: Pathogenesis and Key Cellular Processes, Current and Emerging Therapies, Key Challenges, and Future Research Directions. Methods Mol Biol 2022; 2419:3-19. [PMID: 35237955 DOI: 10.1007/978-1-0716-1924-7_1] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Atherosclerosis is the principal cause of cardiovascular disease that continues to be a substantial drain on healthcare systems, being responsible for about 31% of all global deaths. Atherogenesis is influenced by a range of factors, including oxidative stress, inflammation, hypertension, and hyperlipidemia, and is ultimately driven by the accumulation of low-density lipoprotein cholesterol within the arterial wall of medium and large arteries. Lipoprotein accumulation stimulates the infiltration of immune cells (such as monocytes/macrophages and T-lymphocytes), some of which take up the lipoprotein, leading to the formation of lipid-laden foam cells. Foam cell death results in increased accumulation of dead cells, cellular debris and extracellular cholesterol, forming a lipid-rich necrotic core. Vascular smooth muscle cells from the arterial media also migrate into the intima layer and proliferate, taking up the available lipids to become foam cells and producing extracellular matrix proteins such as collagen and elastin. Plaque progression is characterized by the formation of a fibrous cap composed of extracellular matrix proteins and smooth muscle cells, which acts to stabilize the atherosclerotic plaque. Degradation, thinning, and subsequent rupture of the fibrous cap leads to lumen-occlusive atherothrombosis, most commonly resulting in heart attack or stroke. This chapter describes the pathogenesis of atherosclerosis, current and emerging therapies, key challenges, and future directions of research.
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Affiliation(s)
- Yee-Hung Chan
- Cardiff School of Biosciences, Cardiff University, Cardiff, UK.
| | - Dipak P Ramji
- Cardiff School of Biosciences, Cardiff University, Cardiff, UK
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12
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McLean BA, Wong CK, Kaur KD, Seeley RJ, Drucker DJ. Differential importance of endothelial and hematopoietic cell GLP-1Rs for cardiometabolic versus hepatic actions of semaglutide. JCI Insight 2021; 6:153732. [PMID: 34673572 PMCID: PMC8663785 DOI: 10.1172/jci.insight.153732] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Accepted: 09/30/2021] [Indexed: 01/24/2023] Open
Abstract
Glucagon-like peptide-1 receptor agonists (GLP-1RAs) are used to treat diabetes and obesity and reduce rates of major cardiovascular events, such as stroke and myocardial infarction. Nevertheless, the identity of GLP-1R–expressing cell types mediating the cardiovascular benefits of GLP-1RA remains incompletely characterized. Herein, we investigated the importance of murine Glp1r expression within endothelial and hematopoietic cells. Mice with targeted inactivation of Glp1r in Tie2+ cells exhibited reduced levels of Glp1r mRNA transcripts in aorta, liver, spleen, blood, and gut. Glp1r expression in bone marrow cells was very low and not further reduced in Glp1rTie2–/– mice. The GLP-1RA semaglutide reduced the development of atherosclerosis induced by viral PCSK9 expression in both Glp1rTie2+/+ and Glp1rTie2–/– mice. Hepatic Glp1r mRNA transcripts were reduced in Glp1rTie2–/– mice, and liver Glp1r expression was localized to γδ T cells. Moreover, semaglutide reduced hepatic Tnf, Abcg1, Tgfb1, Cd3g, Ccl2, and Il2 expression; triglyceride content; and collagen accumulation in high-fat, high-cholesterol diet–fed Glp1rTie2+/+ mice but not Glp1rTie2–/– mice. Collectively, these findings demonstrate that Tie2+ endothelial or hematopoietic cell GLP-1Rs are dispensable for the antiatherogenic actions of GLP-1RA, whereas Tie2-targeted GLP-1R+ cells are required for a subset of the antiinflammatory actions of semaglutide in the liver.
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Affiliation(s)
- Brent A McLean
- Department of Medicine, Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, Ontario, Canada
| | - Chi Kin Wong
- Department of Medicine, Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, Ontario, Canada
| | - Kiran Deep Kaur
- Department of Medicine, Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, Ontario, Canada
| | - Randy J Seeley
- Department of Surgery, University of Michigan, Ann Arbor, Michigan
| | - Daniel J Drucker
- Department of Medicine, Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, Ontario, Canada
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13
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Animal Models of Neointimal Hyperplasia and Restenosis: Species-Specific Differences and Implications for Translational Research. JACC Basic Transl Sci 2021; 6:900-917. [PMID: 34869956 PMCID: PMC8617545 DOI: 10.1016/j.jacbts.2021.06.006] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Revised: 06/17/2021] [Accepted: 06/20/2021] [Indexed: 12/29/2022]
Abstract
Neointimal hyperplasia is the major factor contributing to restenosis after angioplasty procedures. Multiple animal models exist to study basic and translational aspects of restenosis formation. Animal models differ substantially, and species-specific differences have major impact on the pathophysiology of the model. Genetic, dietary, and mechanical interventions determine the translational potential of the animal model used and have to be considered when choosing the model.
The process of restenosis is based on the interplay of various mechanical and biological processes triggered by angioplasty-induced vascular trauma. Early arterial recoil, negative vascular remodeling, and neointimal formation therefore limit the long-term patency of interventional recanalization procedures. The most serious of these processes is neointimal hyperplasia, which can be traced back to 4 main mechanisms: endothelial damage and activation; monocyte accumulation in the subintimal space; fibroblast migration; and the transformation of vascular smooth muscle cells. A wide variety of animal models exists to investigate the underlying pathophysiology. Although mouse models, with their ease of genetic manipulation, enable cell- and molecular-focused fundamental research, and rats provide the opportunity to use stent and balloon models with high throughput, both rodents lack a lipid metabolism comparable to humans. Rabbits instead build a bridge to close the gap between basic and clinical research due to their human-like lipid metabolism, as well as their size being accessible for clinical angioplasty procedures. Every different combination of animal, dietary, and injury model has various advantages and disadvantages, and the decision for a proper model requires awareness of species-specific biological properties reaching from vessel morphology to distinct cellular and molecular features.
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Key Words
- Apo, apolipoprotein
- CETP, cholesteryl ester transferase protein
- ECM, extracellular matrix
- FGF, fibroblast growth factor
- HDL, high-density lipoprotein
- LDL, low-density lipoprotein
- LDLr, LDL receptor
- PDGF, platelet-derived growth factor
- TGF, transforming growth factor
- VLDL, very low-density lipoprotein
- VSMC, vascular smooth muscle cell
- angioplasty
- animal model
- neointimal hyperplasia
- restenosis
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Louloudis G, Ambrosini S, Paneni F, Camici GG, Benke D, Klohs J. Adeno-Associated Virus-Mediated Gain-of-Function mPCSK9 Expression in the Mouse Induces Hypercholesterolemia, Monocytosis, Neutrophilia, and a Hypercoagulative State. Front Cardiovasc Med 2021; 8:718741. [PMID: 34631822 PMCID: PMC8492965 DOI: 10.3389/fcvm.2021.718741] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Accepted: 08/20/2021] [Indexed: 01/20/2023] Open
Abstract
Hypercholesterolemia has previously been induced in the mouse by a single intravenous injection of adeno-associated virus (AAV)-based vector harboring gain-of-function pro-protein convertase subtilisin/kexin type 9. Despite the recent emergence of the PCSK9-AAV model, the profile of hematological and coagulation parameters associated with it has yet to be characterized. We injected 1.0 × 1011 viral particles of mPCSK9-AAV or control AAV into juvenile male C57BL/6N mice and fed them with either a Western-type high-fat diet (HFD) or standard diet over the course of 3 weeks. mPCSK9-AAV mice on HFD exhibited greater plasma PCSK9 concentration and lower low-density lipoprotein levels, concomitant with increased total cholesterol and non-high-density lipoprotein (non-HDL)-cholesterol concentrations, and lower HDL-cholesterol concentrations than control mice. Furthermore, mPCSK9-AAV-injected mice on HFD exhibited no signs of atherosclerosis at 3 weeks after the AAV injection. Hypercholesterolemia was associated with a thromboinflammatory phenotype, as neutrophil levels, monocyte levels, and neutrophil-to-lymphocyte ratios were higher and activated partial thromboplastin times (aPTTs) was lower in HFD-fed mPCSK9-AAV mice. Therefore, the mPCSK9-AAV is a suitable model of hypercholesterolemia to examine the role of thromboinflammatory processes in the pathogenesis of cardiovascular and cerebrovascular diseases.
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Affiliation(s)
- Georgios Louloudis
- Institute for Biomedical Engineering, University of Zurich and ETH Zurich, Zurich, Switzerland.,Zurich Neuroscience Center (ZNZ), Zurich, Switzerland
| | - Samuele Ambrosini
- Center for Molecular Cardiology, University of Zurich, Zurich, Switzerland
| | - Francesco Paneni
- Center for Molecular Cardiology, University of Zurich, Zurich, Switzerland.,University Heart Center, Cardiology, University Hospital Zurich, Zurich, Switzerland.,Department of Research and Education, University Hospital Zurich, Zurich, Switzerland
| | - Giovanni G Camici
- Zurich Neuroscience Center (ZNZ), Zurich, Switzerland.,Center for Molecular Cardiology, University of Zurich, Zurich, Switzerland
| | - Dietmar Benke
- Zurich Neuroscience Center (ZNZ), Zurich, Switzerland.,Institute of Pharmacology and Toxicology, University of Zurich, Zurich, Switzerland
| | - Jan Klohs
- Institute for Biomedical Engineering, University of Zurich and ETH Zurich, Zurich, Switzerland.,Zurich Neuroscience Center (ZNZ), Zurich, Switzerland
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15
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Choi YY, Kim A, Seong KM. Chronic radiation exposure aggravates atherosclerosis by stimulating neutrophil infiltration. Int J Radiat Biol 2021; 97:1270-1281. [PMID: 34032557 DOI: 10.1080/09553002.2021.1934750] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
BACKGROUND Radiation exposure is known to increase the risk of chronic inflammatory diseases, such as atherosclerosis, by modulating inflammation. METHODS To investigate the infiltration of leukocytes in radiation-aggravated atherosclerosis, we examined low-density lipoprotein receptor-deficient (Ldlr-/-) mice and C57BL/6j mice after exposure to 0.5 or 1 Gy radiation over 16 weeks. RESULTS We found that radiation exposure induced atherosclerosis development in Ldlr-/- mice, as demonstrated by increased lipid-laden plaque size, reactive oxygen species levels, and levels of the pro-inflammatory cytokines, IL-1β and TNF-α, in the aortas and spleens. Total plasma cholesterol, triglyceride, and LDL cholesterol levels were also increased by radiation exposure, along with cardiovascular risk. We also showed dose-dependent increases in neutrophils and monocytes that coincided with a reduction in lymphocytes in the spleens of Ldlr-/- mice. The correlation between the infiltration of leukocytes and cytokine production was also confirmed in the hearts and spleens of these mice. CONCLUSIONS We concluded that chronic radiation exposure increased the production of pro-inflammatory mediators, which was associated with the migration of neutrophils and inflammatory monocytes into sites of atherosclerosis. Thus, our data suggest that the accumulation of neutrophils and inflammatory monocytes, together with the reduction of lymphocytes, contribute to aggravated atherosclerosis in Ldlr-/- mice under prolonged exposure to radiation.
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Affiliation(s)
- You Yeon Choi
- Laboratory of Biodosimetry, National Radiation Emergency Medical Center, KIRAMS, Seoul, Republic of Korea
| | - Areumnuri Kim
- Laboratory of Radiation Exposure and Therapeutics, National Radiation Emergency Medical Center, KIRAMS, Seoul, Republic of Korea
| | - Ki Moon Seong
- Laboratory of Biodosimetry, National Radiation Emergency Medical Center, KIRAMS, Seoul, Republic of Korea
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16
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Wang L, Ahn YJ, Asmis R. Inhibition of myeloid HDAC2 upregulates glutaredoxin 1 expression, improves protein thiol redox state and protects against high-calorie diet-induced monocyte dysfunction and atherosclerosis. Atherosclerosis 2021; 328:23-32. [PMID: 34077868 DOI: 10.1016/j.atherosclerosis.2021.05.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Revised: 04/22/2021] [Accepted: 05/05/2021] [Indexed: 12/25/2022]
Abstract
BACKGROUND AND AIMS The thiol transferase glutaredoxin 1 controls redox signaling and cellular functions by regulating the S-glutathionylation status of critical protein thiols. Here we tested the hypothesis that by derepressing the expression of glutaredoxin 1, inhibition of histone deacetylase 2 prevents nutrient stress-induced protein S-glutathionylation and monocyte dysfunction and protects against atherosclerosis. METHODS Using both a pharmacological inhibitor and shRNA-mediated knockdown of histone deacetylase 2, we determine the role of this deacetylase on glutaredoxin 1 expression and nutrient stress-induced inactivation of mitogen-activated protein kinase phosphatase 1 activity and monocyte and macrophage dysfunction. To assess whether histone deacetylase 2 inhibition in myeloid cells protects against atherosclerosis, we fed eight-week-old female and male HDAC2-/-MyeloidLDLR-/- mice and age and sex-matched LysMcretg/wtLDLR-/- control mice a high-calorie diet for 12 weeks and assessed monocyte function and atherosclerotic lesion size. RESULTS Myeloid histone deacetylase 2 deficiency in high-calorie diet-fed LDLR-/- mice reduced atherosclerosis in males by 39% without affecting plasma lipid and lipoprotein profiles or blood glucose levels but had no effect on atherogenesis in female mice. Macrophage content in plaques of male mice was reduced by 31%. Histone deacetylase 2-deficient blood monocytes from male mice showed increased acetylation on histone 3, and increased Grx1 expression, and was associated with increased MKP-1 activity and reduced recruitment of monocyte-derived macrophages, whereas in females, myeloid HDAC2 deficiency had no effect on Grx1 expression, did not prevent nutrient stress-induced loss of MKP-1 activity in monocytes and was not atheroprotective. CONCLUSIONS Specific histone deacetylase 2 inhibitors may represent a potential novel therapeutic strategy for the prevention and treatment of atherosclerosis, but any benefits may be sexually dimorphic.
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Affiliation(s)
- Luxi Wang
- Department of Internal Medicine, Wake Forest School of Medicine, USA
| | - Yong Joo Ahn
- Department of Internal Medicine, Wake Forest School of Medicine, USA
| | - Reto Asmis
- Department of Internal Medicine, Wake Forest School of Medicine, USA.
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17
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Lin Y, Tsai M, Hsieh I, Wen M, Wang C. Deficiency of circadian gene cryptochromes in bone marrow‐derived cells protects against atherosclerosis in
LDLR
−/−
mice. FASEB J 2021; 35:e21309. [DOI: 10.1096/fj.202001818rrr] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2020] [Revised: 12/09/2020] [Accepted: 12/11/2020] [Indexed: 12/14/2022]
Affiliation(s)
- Yu‐Sheng Lin
- Healthcare Center Chang Gung Memorial Hospital Chang Gung University College of Medicine Taoyuan City Taiwan
- Department of Cardiology Chang Gung Memorial Hospital Chang Gung University College of Medicine Taoyuan City Taiwan
| | - Ming‐Lung Tsai
- Department of Cardiology Chang Gung Memorial Hospital Chang Gung University College of Medicine Taoyuan City Taiwan
| | - I‐Chang Hsieh
- Department of Cardiology Chang Gung Memorial Hospital Chang Gung University College of Medicine Taoyuan City Taiwan
| | - Ming‐Shien Wen
- Department of Cardiology Chang Gung Memorial Hospital Chang Gung University College of Medicine Taoyuan City Taiwan
| | - Chao‐Yung Wang
- Department of Cardiology Chang Gung Memorial Hospital Chang Gung University College of Medicine Taoyuan City Taiwan
- Institute of Cellular and System Medicine National Health Research Institutes Zhunan Taiwan
- Department of Medical Science National Tsing Hua University Hsinchu Taiwan
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18
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Kiouptsi K, Pontarollo G, Todorov H, Braun J, Jäckel S, Koeck T, Bayer F, Karwot C, Karpi A, Gerber S, Jansen Y, Wild P, Ruf W, Daiber A, Van Der Vorst E, Weber C, Döring Y, Reinhardt C. Germ-free housing conditions do not affect aortic root and aortic arch lesion size of late atherosclerotic low-density lipoprotein receptor-deficient mice. Gut Microbes 2020; 11:1809-1823. [PMID: 32579470 PMCID: PMC7524356 DOI: 10.1080/19490976.2020.1767463] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
The microbiota has been linked to the development of atherosclerosis, but the functional impact of these resident bacteria on the lesion size and cellular composition of atherosclerotic plaques in the aorta has never been experimentally addressed with the germ-free low-density lipoprotein receptor-deficient (Ldlr-/- ) mouse atherosclerosis model. Here, we report that 16 weeks of high-fat diet (HFD) feeding of hypercholesterolemic Ldlr-/- mice at germ-free (GF) housing conditions did not impact relative aortic root plaque size, macrophage content, and necrotic core area. Likewise, we did not find changes in the relative aortic arch lesion size. However, late atherosclerotic GF Ldlr-/- mice had altered inflammatory plasma protein markers and reduced smooth muscle cell content in their atherosclerotic root plaques relative to CONV-R Ldlr-/- mice. Neither absolute nor relative aortic root or aortic arch plaque size correlated with age. Our analyses on GF Ldlr-/- mice did not reveal a significant contribution of the microbiota in late aortic atherosclerosis.
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Affiliation(s)
- Klytaimnistra Kiouptsi
- Center for Thrombosis and Hemostasis (CTH), University Medical Center Mainz, Mainz, Germany
| | - Giulia Pontarollo
- Center for Thrombosis and Hemostasis (CTH), University Medical Center Mainz, Mainz, Germany
| | - Hristo Todorov
- Institute of Developmental Biology and Neurobiology, University Medical Center of the Johannes Gutenberg University of Mainz, Mainz, Germany
| | - Johannes Braun
- Center for Thrombosis and Hemostasis (CTH), University Medical Center Mainz, Mainz, Germany
| | - Sven Jäckel
- Center for Thrombosis and Hemostasis (CTH), University Medical Center Mainz, Mainz, Germany,German Center for Cardiovascular Research (DZHK), Partner Site RheinMain, Mainz, Germany
| | - Thomas Koeck
- Center for Thrombosis and Hemostasis (CTH), University Medical Center Mainz, Mainz, Germany,German Center for Cardiovascular Research (DZHK), Partner Site RheinMain, Mainz, Germany,Preventive Cardiology and Preventive Medicine, Center for Cardiology, University Medical Center of the Johannes Gutenberg University Mainz, Mainz, Germany
| | - Franziska Bayer
- Center for Thrombosis and Hemostasis (CTH), University Medical Center Mainz, Mainz, Germany
| | - Cornelia Karwot
- Center for Thrombosis and Hemostasis (CTH), University Medical Center Mainz, Mainz, Germany
| | - Angelica Karpi
- Center for Cardiology, Cardiology I, University Medical Center Mainz, Mainz, Germany
| | - Susanne Gerber
- Institute of Developmental Biology and Neurobiology, University Medical Center of the Johannes Gutenberg University of Mainz, Mainz, Germany
| | - Yvonne Jansen
- Institute of Cardiovascular Prevention, Department of Medicine, Ludwig-Maximilians-University Munich, Munich, Germany
| | - Philipp Wild
- Center for Thrombosis and Hemostasis (CTH), University Medical Center Mainz, Mainz, Germany,German Center for Cardiovascular Research (DZHK), Partner Site RheinMain, Mainz, Germany,Preventive Cardiology and Preventive Medicine, Center for Cardiology, University Medical Center of the Johannes Gutenberg University Mainz, Mainz, Germany
| | - Wolfram Ruf
- Center for Thrombosis and Hemostasis (CTH), University Medical Center Mainz, Mainz, Germany,German Center for Cardiovascular Research (DZHK), Partner Site RheinMain, Mainz, Germany,Department of Immunology and Microbiology, Scripps Research Institute, La Jolla, USA
| | - Andreas Daiber
- German Center for Cardiovascular Research (DZHK), Partner Site RheinMain, Mainz, Germany,Center for Cardiology, Cardiology I, University Medical Center Mainz, Mainz, Germany
| | - Emiel Van Der Vorst
- Institute of Cardiovascular Prevention, Department of Medicine, Ludwig-Maximilians-University Munich, Munich, Germany,German Center for Cardiovascular Research (DZHK), Partner Site Munich Heart Alliance, Munich, Germany,Department of Pathology, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University, Maastricht, The Netherlands,Interdisciplinary Center for Clinical Research (IZKF), Institute for Molecular Cardiovascular Research (IMCAR), RWTH Aachen University, Aachen, Germany
| | - Christian Weber
- Institute of Cardiovascular Prevention, Department of Medicine, Ludwig-Maximilians-University Munich, Munich, Germany,German Center for Cardiovascular Research (DZHK), Partner Site Munich Heart Alliance, Munich, Germany
| | - Yvonne Döring
- Institute of Cardiovascular Prevention, Department of Medicine, Ludwig-Maximilians-University Munich, Munich, Germany,German Center for Cardiovascular Research (DZHK), Partner Site Munich Heart Alliance, Munich, Germany,Division of Angiology, Swiss Cardiovascular Center, Inselspital, Bern University Hospital, Bern, Switzerland
| | - Christoph Reinhardt
- Center for Thrombosis and Hemostasis (CTH), University Medical Center Mainz, Mainz, Germany,German Center for Cardiovascular Research (DZHK), Partner Site RheinMain, Mainz, Germany,CONTACT Christoph Reinhardt University Medical Center Mainz, Mainz55131, Germany
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19
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The Impact of Dietary Supplementation of Whole Foods and Polyphenols on Atherosclerosis. Nutrients 2020; 12:nu12072069. [PMID: 32664664 PMCID: PMC7400924 DOI: 10.3390/nu12072069] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2020] [Revised: 07/01/2020] [Accepted: 07/09/2020] [Indexed: 12/16/2022] Open
Abstract
The purpose of this review is to highlight current research on the benefits of supplementation with foods with a diverse polyphenol composition, including fruits, vegetables, nuts, grains, oils, spices, and teas in blunting atherosclerosis. We searched PubMed for publications utilizing whole food or polyphenols prepared from whole foods in Apolipoprotein E (ApoE) or Low-Density Lipoprotein Receptor (LDLR) knockout mice, and identified 73 studies in which plaque was measured. The majority of the studies reported a reduction in plaque. Nine interventions showed no effect, while three using Agaricus blazei mushroom, HYJA-ri-4 rice variety, and safrole-2', 3'-oxide (SFO) increased plaque. The mechanisms by which atherosclerosis was reduced include improved lipid profile, antioxidant status, and cholesterol clearance, and reduced inflammation. Importantly, not all dietary interventions that reduce plaque showed an improvement in lipid profile. Additionally, we found that, out of 73 studies, only 9 used female mice and only 6 compared both sexes. Only one study compared the two models (LDLR vs. ApoE), showing that the treatment worked in one but not the other. Not all supplementations work in both male and female animals, suggesting that increasing the variety of foods with different polyphenol compositions may be more effective in mitigating atherosclerosis.
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20
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Rivas-Urbina A, Rull A, Aldana-Ramos J, Santos D, Puig N, Farre-Cabrerizo N, Benitez S, Perez A, de Gonzalo-Calvo D, Escola-Gil JC, Julve J, Ordoñez-Llanos J, Sanchez-Quesada JL. Subcutaneous Administration of Apolipoprotein J-Derived Mimetic Peptide d-[113-122]apoJ Improves LDL and HDL Function and Prevents Atherosclerosis in LDLR-KO Mice. Biomolecules 2020; 10:biom10060829. [PMID: 32485898 PMCID: PMC7356811 DOI: 10.3390/biom10060829] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Revised: 05/19/2020] [Accepted: 05/21/2020] [Indexed: 12/17/2022] Open
Abstract
Mimetic peptides are potential therapeutic agents for atherosclerosis. d-[113–122]apolipoprotein (apo) J (d-[113–122]apoJ) is a 10-residue peptide that is predicted to form a class G* amphipathic helix 6 from apoJ; it shows anti-inflammatory and anti-atherogenic properties. In the present study, we analyzed the effect of d-[113–122]apoJ in low-density lipoprotein receptor knockout mice(LDLR-KO) on the development of atherosclerosis and lipoprotein function. Fifteen-week-old female LDLR-KO mice fed an atherogenic Western-type diet were treated for eight weeks with d-[113–122]apoJ peptide, a scrambled peptide, or vehicle. Peptides were administered subcutaneously three days per week (200 µg in 100 µL of saline). After euthanasia, blood and hearts were collected and the aortic arch was analyzed for the presence of atherosclerotic lesions. Lipoproteins were isolated and their composition and functionality were studied. The extent of atherosclerotic lesions was 43% lower with d-[113–122]apoJ treatment than with the vehicle or scramble. The lipid profile was similar between groups, but the high-density lipoprotein (HDL) of d-[113–122]apoJ-treated mice had a higher antioxidant capacity and increased ability to promote cholesterol efflux than the control group. In addition, low-density lipoprotein (LDL) from d-[113–122]apoJ-treated mice was more resistant to induced aggregation and presented lower electronegativity than in mice treated with d-[113–122]apoJ. Our results demonstrate that the d-[113–122]apoJ peptide prevents the extent of atherosclerotic lesions, which could be partially explained by the improvement of lipoprotein functionality.
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Affiliation(s)
- Andrea Rivas-Urbina
- Cardiovascular Biochemistry Group, Research Institute of the Hospital de Sant Pau (IIB Sant Pau), 08041 Barcelona, Spain; (A.R.-U.); (A.R.); (J.A.-R.); (N.P.); (S.B.); (J.O.-L.)
- Biochemistry and Molecular Biology Department, Universitat Autònoma de Barcelona, 08193 Cerdanyola, Spain
| | - Anna Rull
- Cardiovascular Biochemistry Group, Research Institute of the Hospital de Sant Pau (IIB Sant Pau), 08041 Barcelona, Spain; (A.R.-U.); (A.R.); (J.A.-R.); (N.P.); (S.B.); (J.O.-L.)
- Hospital Universitari Joan XXIII, IISPV, Universitat Rovira i Virgili, 43005 Tarragona, Spain
| | - Joile Aldana-Ramos
- Cardiovascular Biochemistry Group, Research Institute of the Hospital de Sant Pau (IIB Sant Pau), 08041 Barcelona, Spain; (A.R.-U.); (A.R.); (J.A.-R.); (N.P.); (S.B.); (J.O.-L.)
| | - David Santos
- Molecular Basis of Cardiovascular Risk, Research Institute of the Hospital de Sant Pau (IIB Sant Pau), 08041 Barcelona, Spain; (D.S.); (N.F.-C.); (J.C.E.-G.); (J.J.)
- CIBER of Diabetes and Metabolic Diseases (CIBERDEM), Institute of Health Carlos III, 28029 Madrid, Spain;
| | - Nuria Puig
- Cardiovascular Biochemistry Group, Research Institute of the Hospital de Sant Pau (IIB Sant Pau), 08041 Barcelona, Spain; (A.R.-U.); (A.R.); (J.A.-R.); (N.P.); (S.B.); (J.O.-L.)
| | - Nuria Farre-Cabrerizo
- Molecular Basis of Cardiovascular Risk, Research Institute of the Hospital de Sant Pau (IIB Sant Pau), 08041 Barcelona, Spain; (D.S.); (N.F.-C.); (J.C.E.-G.); (J.J.)
| | - Sonia Benitez
- Cardiovascular Biochemistry Group, Research Institute of the Hospital de Sant Pau (IIB Sant Pau), 08041 Barcelona, Spain; (A.R.-U.); (A.R.); (J.A.-R.); (N.P.); (S.B.); (J.O.-L.)
| | - Antonio Perez
- CIBER of Diabetes and Metabolic Diseases (CIBERDEM), Institute of Health Carlos III, 28029 Madrid, Spain;
- Endocrinology Department, Hospital de la Santa Creu i Sant Pau, 08041 Barcelona, Spain
| | - David de Gonzalo-Calvo
- Translational Research in Respiratory Medicine, University Hospital Arnau de Vilanova and Santa Maria, IRBLleida, 25198 Lleida, Spain;
- CIBER of Respiratory Diseases (CIBERES), Institute of Health Carlos III, 28029 Madrid, Spain
| | - Joan Carles Escola-Gil
- Molecular Basis of Cardiovascular Risk, Research Institute of the Hospital de Sant Pau (IIB Sant Pau), 08041 Barcelona, Spain; (D.S.); (N.F.-C.); (J.C.E.-G.); (J.J.)
- CIBER of Diabetes and Metabolic Diseases (CIBERDEM), Institute of Health Carlos III, 28029 Madrid, Spain;
| | - Josep Julve
- Molecular Basis of Cardiovascular Risk, Research Institute of the Hospital de Sant Pau (IIB Sant Pau), 08041 Barcelona, Spain; (D.S.); (N.F.-C.); (J.C.E.-G.); (J.J.)
- CIBER of Diabetes and Metabolic Diseases (CIBERDEM), Institute of Health Carlos III, 28029 Madrid, Spain;
| | - Jordi Ordoñez-Llanos
- Cardiovascular Biochemistry Group, Research Institute of the Hospital de Sant Pau (IIB Sant Pau), 08041 Barcelona, Spain; (A.R.-U.); (A.R.); (J.A.-R.); (N.P.); (S.B.); (J.O.-L.)
- Biochemistry and Molecular Biology Department, Universitat Autònoma de Barcelona, 08193 Cerdanyola, Spain
| | - Jose Luis Sanchez-Quesada
- Cardiovascular Biochemistry Group, Research Institute of the Hospital de Sant Pau (IIB Sant Pau), 08041 Barcelona, Spain; (A.R.-U.); (A.R.); (J.A.-R.); (N.P.); (S.B.); (J.O.-L.)
- CIBER of Diabetes and Metabolic Diseases (CIBERDEM), Institute of Health Carlos III, 28029 Madrid, Spain;
- Correspondence: ; Tel.: +34-35537588
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21
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Abstract
Atherosclerosis is a chronic inflammatory vascular disease and the predominant cause of heart attack and ischemic stroke. Despite the well-known sexual dimorphism in the incidence and complications of atherosclerosis, there are relatively limited data in the clinical and preclinical literature to rigorously address mechanisms underlying sex as a biological variable in atherosclerosis. In multiple histological and imaging studies, overall plaque burden and markers of inflammation appear to be greater in men than women and are predictive of cardiovascular events. However, while younger women are relatively protected from cardiovascular disease, by the seventh decade, the incidence of myocardial infarction in women ultimately surpasses that of men, suggesting an interaction between sex and age. Most preclinical studies in animal atherosclerosis models do not examine both sexes, and even in those that do, well-powered direct statistical comparisons for sex as an independent variable remain rare. This article reviews the available data. Overall, male animals appear to have more inflamed yet smaller plaques compared to female animals. Plaque inflammation is often used as a surrogate end point for plaque vulnerability in animals. The available data support the notion that rather than plaque size, plaque inflammation may be more relevant in assessing sex-specific mechanisms since the findings correlate with the sex difference in ischemic events and mortality and thus may be more reflective of the human condition. Overall, the number of preclinical studies directly comparing plaque inflammation between the sexes is extremely limited relative to the vast literature exploring atherosclerosis mechanisms. Failure to include both sexes and to address age in mechanistic atherosclerosis studies are missed opportunities to uncover underlying sex-specific mechanisms. Understanding the mechanisms driving sex as a biological variable in atherosclerotic disease is critical to future precision medicine strategies to mitigate what is still the leading cause of death of men and women worldwide.
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Affiliation(s)
- Joshua J Man
- From the Molecular Cardiology Research Institute, Tufts Medical Center, Boston, MA (J.J.M., I.Z.J.).,Graduate School of Biomedical Sciences, Tufts University School of Medicine, Boston, MA (J.J.M.)
| | - Joshua A Beckman
- Cardiovascular Division, Vanderbilt University Medical Center, Nashville, TN (J.A.B.)
| | - Iris Z Jaffe
- From the Molecular Cardiology Research Institute, Tufts Medical Center, Boston, MA (J.J.M., I.Z.J.)
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22
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Loaiza N, Hartgers ML, Reeskamp LF, Balder JW, Rimbert A, Bazioti V, Wolters JC, Winkelmeijer M, Jansen HPG, Dallinga-Thie GM, Volta A, Huijkman N, Smit M, Kloosterhuis N, Koster M, Svendsen AF, van de Sluis B, Hovingh GK, Grefhorst A, Kuivenhoven JA. Taking One Step Back in Familial Hypercholesterolemia: STAP1 Does Not Alter Plasma LDL (Low-Density Lipoprotein) Cholesterol in Mice and Humans. Arterioscler Thromb Vasc Biol 2020; 40:973-985. [PMID: 31996024 PMCID: PMC7098433 DOI: 10.1161/atvbaha.119.313470] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
OBJECTIVE STAP1, encoding for STAP1 (signal transducing adaptor family member 1), has been reported as a candidate gene associated with familial hypercholesterolemia. Unlike established familial hypercholesterolemia genes, expression of STAP1 is absent in liver but mainly observed in immune cells. In this study, we set out to validate STAP1 as a familial hypercholesterolemia gene. Approach and Results: A whole-body Stap1 knockout mouse model (Stap1-/-) was generated and characterized, without showing changes in plasma lipid levels compared with controls. In follow-up studies, bone marrow from Stap1-/- mice was transplanted to Ldlr-/- mice, which did not show significant changes in plasma lipid levels or atherosclerotic lesions. To functionally assess whether STAP1 expression in B cells can affect hepatic function, HepG2 cells were cocultured with peripheral blood mononuclear cells isolated from heterozygotes carriers of STAP1 variants and controls. The peripheral blood mononuclear cells from STAP1 variant carriers and controls showed similar LDLR mRNA and protein levels. Also, LDL (low-density lipoprotein) uptake by HepG2 cells did not differ upon coculturing with peripheral blood mononuclear cells isolated from either STAP1 variant carriers or controls. In addition, plasma lipid profiles of 39 carriers and 71 family controls showed no differences in plasma LDL cholesterol, HDL (high-density lipoprotein) cholesterol, triglycerides, and lipoprotein(a) levels. Similarly, B-cell populations did not differ in a group of 10 STAP1 variant carriers and 10 age- and sex-matched controls. Furthermore, recent data from the UK Biobank do not show association between STAP1 rare gene variants and LDL cholesterol. CONCLUSIONS Our combined studies in mouse models and carriers of STAP1 variants indicate that STAP1 is not a familial hypercholesterolemia gene.
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Affiliation(s)
- Natalia Loaiza
- From the Department of Pediatrics, Molecular Genetics Section (N.L., J.-W.B., A.R., V.B., J.C.W., N.H., M.S., N.K., M.K., B.v.d.S., J.A.K.), University Medical Center Groningen, University of Groningen, the Netherlands
| | - Merel L Hartgers
- Department of Vascular Medicine, Amsterdam University Medical Centers, Location AMC, the Netherlands (M.L.H., L.F.R., G.M.D.-T., G.K.H.)
| | - Laurens F Reeskamp
- Department of Vascular Medicine, Amsterdam University Medical Centers, Location AMC, the Netherlands (M.L.H., L.F.R., G.M.D.-T., G.K.H.)
| | - Jan-Willem Balder
- From the Department of Pediatrics, Molecular Genetics Section (N.L., J.-W.B., A.R., V.B., J.C.W., N.H., M.S., N.K., M.K., B.v.d.S., J.A.K.), University Medical Center Groningen, University of Groningen, the Netherlands.,Department of Vascular Medicine (J.-W.B.), University Medical Center Groningen, University of Groningen, the Netherlands.,Department of Cardiology, University Medical Center Utrecht, the Netherlands (J.-W.B.)
| | - Antoine Rimbert
- From the Department of Pediatrics, Molecular Genetics Section (N.L., J.-W.B., A.R., V.B., J.C.W., N.H., M.S., N.K., M.K., B.v.d.S., J.A.K.), University Medical Center Groningen, University of Groningen, the Netherlands.,L'institut du thorax, INSERM, CNRS, Université de Nantes, France (A.R.)
| | - Venetia Bazioti
- From the Department of Pediatrics, Molecular Genetics Section (N.L., J.-W.B., A.R., V.B., J.C.W., N.H., M.S., N.K., M.K., B.v.d.S., J.A.K.), University Medical Center Groningen, University of Groningen, the Netherlands
| | - Justina C Wolters
- From the Department of Pediatrics, Molecular Genetics Section (N.L., J.-W.B., A.R., V.B., J.C.W., N.H., M.S., N.K., M.K., B.v.d.S., J.A.K.), University Medical Center Groningen, University of Groningen, the Netherlands
| | - Maaike Winkelmeijer
- Department of Experimental Vascular Medicine, Amsterdam University Medical Centers, Location AMC, the Netherlands (M.W., H.P.G.J., A.G.)
| | - Hans P G Jansen
- Department of Experimental Vascular Medicine, Amsterdam University Medical Centers, Location AMC, the Netherlands (M.W., H.P.G.J., A.G.)
| | - Geesje M Dallinga-Thie
- Department of Vascular Medicine, Amsterdam University Medical Centers, Location AMC, the Netherlands (M.L.H., L.F.R., G.M.D.-T., G.K.H.)
| | - Andrea Volta
- Department of Experimental and Clinical Medicine, University of Florence, Italy (A.V.)
| | - Nicolette Huijkman
- From the Department of Pediatrics, Molecular Genetics Section (N.L., J.-W.B., A.R., V.B., J.C.W., N.H., M.S., N.K., M.K., B.v.d.S., J.A.K.), University Medical Center Groningen, University of Groningen, the Netherlands
| | - Marieke Smit
- From the Department of Pediatrics, Molecular Genetics Section (N.L., J.-W.B., A.R., V.B., J.C.W., N.H., M.S., N.K., M.K., B.v.d.S., J.A.K.), University Medical Center Groningen, University of Groningen, the Netherlands
| | - Niels Kloosterhuis
- From the Department of Pediatrics, Molecular Genetics Section (N.L., J.-W.B., A.R., V.B., J.C.W., N.H., M.S., N.K., M.K., B.v.d.S., J.A.K.), University Medical Center Groningen, University of Groningen, the Netherlands
| | - Mirjam Koster
- From the Department of Pediatrics, Molecular Genetics Section (N.L., J.-W.B., A.R., V.B., J.C.W., N.H., M.S., N.K., M.K., B.v.d.S., J.A.K.), University Medical Center Groningen, University of Groningen, the Netherlands
| | - Arthur F Svendsen
- Laboratory of Ageing Biology and Stem Cells, European Institute for the Biology of Aging (ERIBA) (A.F.S.), University Medical Center Groningen, University of Groningen, the Netherlands
| | - Bart van de Sluis
- From the Department of Pediatrics, Molecular Genetics Section (N.L., J.-W.B., A.R., V.B., J.C.W., N.H., M.S., N.K., M.K., B.v.d.S., J.A.K.), University Medical Center Groningen, University of Groningen, the Netherlands.,iPSC/CRISPR Center Groningen (B.v.d.S.), University Medical Center Groningen, University of Groningen, the Netherlands
| | - G Kees Hovingh
- Department of Vascular Medicine, Amsterdam University Medical Centers, Location AMC, the Netherlands (M.L.H., L.F.R., G.M.D.-T., G.K.H.)
| | - Aldo Grefhorst
- Department of Experimental Vascular Medicine, Amsterdam University Medical Centers, Location AMC, the Netherlands (M.W., H.P.G.J., A.G.)
| | - Jan Albert Kuivenhoven
- From the Department of Pediatrics, Molecular Genetics Section (N.L., J.-W.B., A.R., V.B., J.C.W., N.H., M.S., N.K., M.K., B.v.d.S., J.A.K.), University Medical Center Groningen, University of Groningen, the Netherlands
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23
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Thiem K, Hoeke G, van den Berg S, Hijmans A, Jacobs CWM, Zhou E, Mol IM, Mouktaroudi M, Bussink J, Kanneganti TD, Lutgens E, Stienstra R, Tack CJ, Netea MG, Rensen PCN, Berbée JFP, van Diepen JA. Deletion of hematopoietic Dectin-2 or CARD9 does not protect against atherosclerotic plaque formation in hyperlipidemic mice. Sci Rep 2019; 9:4337. [PMID: 30867470 PMCID: PMC6416398 DOI: 10.1038/s41598-019-40663-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2018] [Accepted: 02/21/2019] [Indexed: 01/12/2023] Open
Abstract
Inflammatory reactions activated by pattern recognition receptors (PRRs) on the membrane of innate immune cells play an important role in atherosclerosis. Whether the PRRs of the C-type lectin receptor (CLR) family including Dectin-2 may be involved in the pathogenesis of atherosclerosis remains largely unknown. Recently, the CLR-adaptor molecule caspase recruitment domain family member 9 (CARD9) has been suggested to play a role in cardiovascular pathologies as it provides the link between CLR activation and transcription of inflammatory cytokines as well as immune cell recruitment. We therefore evaluated whether hematopoietic deletion of Dectin-2 or CARD9 reduces inflammation and atherosclerosis development. Low-density lipoprotein receptor (Ldlr)-knockout mice were transplanted with bone marrow from wild-type, Dectin-2- or Card9-knockout mice and fed a Western-type diet containing 0.1% (w/w) cholesterol. After 10 weeks, lipid and inflammatory parameters were measured and atherosclerosis development was determined. Deletion of hematopoietic Dectin-2 or CARD9 did not influence plasma triglyceride and cholesterol levels. Deletion of hematopoietic Dectin-2 did not affect atherosclerotic lesion area, immune cell composition, ex vivo cytokine secretion by peritoneal cells or bone marrow derived macrophages. Unexpectedly, deletion of hematopoietic CARD9 increased atherosclerotic lesion formation and lesion severity. Deletion of hematopoietic CARD9 did also not influence circulating immune cell composition and peripheral cytokine secretion. Besides a tendency to a reduced macrophage content within these lesions, plasma MCP-1 levels decreased upon WTD feeding. Deletion of hematopoietic Dectin-2 did not influence atherosclerosis development in hyperlipidemic mice. The absence of CARD9 unexpectedly increased atherosclerotic lesion size and severity, suggesting that the presence of CARD9 may protect against initiation of atherosclerosis development.
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Affiliation(s)
- Kathrin Thiem
- Department of Internal Medicine and Radboud Institute for Molecular Life Sciences, Radboud university medical center, Nijmegen, The Netherlands.
| | - Geerte Hoeke
- Department of Medicine, Div. of Endocrinology, Leiden University Medical Center, Leiden, The Netherlands.,Einthoven Laboratory for Experimental Vascular Medicine, Leiden University Medical Center, Leiden, The Netherlands
| | - Susan van den Berg
- Department of Medical Biochemistry, Div. of Experimental Vascular Biology, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
| | - Anneke Hijmans
- Department of Internal Medicine and Radboud Institute for Molecular Life Sciences, Radboud university medical center, Nijmegen, The Netherlands
| | - Cor W M Jacobs
- Department of Internal Medicine and Radboud Institute for Molecular Life Sciences, Radboud university medical center, Nijmegen, The Netherlands
| | - Enchen Zhou
- Department of Medicine, Div. of Endocrinology, Leiden University Medical Center, Leiden, The Netherlands.,Einthoven Laboratory for Experimental Vascular Medicine, Leiden University Medical Center, Leiden, The Netherlands
| | - Isabel M Mol
- Department of Medicine, Div. of Endocrinology, Leiden University Medical Center, Leiden, The Netherlands.,Einthoven Laboratory for Experimental Vascular Medicine, Leiden University Medical Center, Leiden, The Netherlands
| | - Maria Mouktaroudi
- Department of Internal Medicine, National and Kapodistrian University of Athens, Medical School, Athens, Greece
| | - Johan Bussink
- Dept. of Radiation Oncology, Radboud University Medical Center, Nijmegen, The Netherlands
| | | | - Esther Lutgens
- Department of Medical Biochemistry, Div. of Experimental Vascular Biology, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands.,Institute for Cardiovascular Prevention, Ludwig Maximilians University of Munich, Munich, Germany
| | - Rinke Stienstra
- Department of Internal Medicine and Radboud Institute for Molecular Life Sciences, Radboud university medical center, Nijmegen, The Netherlands.,Div. of Human Nutrition, Wageningen University, Wageningen, The Netherlands
| | - Cees J Tack
- Department of Internal Medicine and Radboud Institute for Molecular Life Sciences, Radboud university medical center, Nijmegen, The Netherlands
| | - Mihai G Netea
- Department of Internal Medicine and Radboud Institute for Molecular Life Sciences, Radboud university medical center, Nijmegen, The Netherlands.,Department for Genomics & Immunoregulation, Life and Medical Sciences Institute (LIMES), University of Bonn, Bonn, Germany
| | - Patrick C N Rensen
- Department of Medicine, Div. of Endocrinology, Leiden University Medical Center, Leiden, The Netherlands.,Einthoven Laboratory for Experimental Vascular Medicine, Leiden University Medical Center, Leiden, The Netherlands
| | - Jimmy F P Berbée
- Department of Medicine, Div. of Endocrinology, Leiden University Medical Center, Leiden, The Netherlands.,Einthoven Laboratory for Experimental Vascular Medicine, Leiden University Medical Center, Leiden, The Netherlands
| | - Janna A van Diepen
- Department of Internal Medicine and Radboud Institute for Molecular Life Sciences, Radboud university medical center, Nijmegen, The Netherlands
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