1
|
Shibao C, Peche VS, Williams IM, Samovski D, Pietka TA, Abumrad NN, Gamazon E, Goldberg IJ, Wasserman D, Abumrad NA. Microvascular insulin resistance associates with enhanced muscle glucose disposal in CD36 deficiency. medRxiv 2024:2024.02.16.24302950. [PMID: 38405702 PMCID: PMC10889024 DOI: 10.1101/2024.02.16.24302950] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/27/2024]
Abstract
Dysfunction of endothelial insulin delivery to muscle associates with insulin resistance. CD36, a fatty acid transporter and modulator of insulin signaling is abundant in endothelial cells, especially in capillaries. Humans with inherited 50% reduction in CD36 expression have endothelial dysfunction but whether it is associated with insulin resistance is unclear. Using hyperinsulinemic/euglycemic clamps in Cd36-/- and wildtype mice, and in 50% CD36 deficient humans and matched controls we found that Cd36-/- mice have enhanced systemic glucose disposal despite unaltered transendothelial insulin transfer and reductions in microvascular perfusion and blood vessel compliance. Partially CD36 deficient humans also have better glucose disposal than controls with no capillary recruitment by insulin. CD36 knockdown in primary human-derived microvascular cells impairs insulin action on AKT, endothelial nitric oxide synthase, and nitric oxide release. Thus, insulin resistance of microvascular function in CD36 deficiency paradoxically associates with increased glucose utilization, likely through a remodeling of muscle gene expression.
Collapse
Affiliation(s)
- Cyndya Shibao
- Department of Medicine, Division of Clinical Pharmacology, Vanderbilt University Medical Center, Nashville TN
| | - Vivek S. Peche
- Department of Medicine, Division of Nutritional Sciences and Obesity Research, Washington University School of Medicine, St. Louis, MO
| | - Ian M. Williams
- Department of Molecular Physiology and Biophysics, Vanderbilt University Medical Center, Nashville TN
| | - Dmitri Samovski
- Department of Medicine, Division of Nutritional Sciences and Obesity Research, Washington University School of Medicine, St. Louis, MO
| | - Terri A. Pietka
- Department of Medicine, Division of Nutritional Sciences and Obesity Research, Washington University School of Medicine, St. Louis, MO
| | - Naji N. Abumrad
- Department of Surgery, Vanderbilt University Medical Center, Nashville TN
| | - Eric Gamazon
- Department of Medicine, Division of Genetic Medicine, Vanderbilt University, Nashville, TN
| | - Ira J. Goldberg
- Department of Medicine, Division of Endocrinology, Diabetes and Metabolism, New York University Grossman School of Medicine, New York, NY
| | - David Wasserman
- Department of Molecular Physiology and Biophysics, Vanderbilt University Medical Center, Nashville TN
| | - Nada A. Abumrad
- Department of Medicine, Division of Nutritional Sciences and Obesity Research, Washington University School of Medicine, St. Louis, MO
- Department of Cell Biology & Physiology, Washington University School of Medicine, St. Louis, MO
| |
Collapse
|
2
|
Wen SY, Zhi X, Liu HX, Wang X, Chen YY, Wang L. Is the suppression of CD36 a promising way for atherosclerosis therapy? Biochem Pharmacol 2024; 219:115965. [PMID: 38043719 DOI: 10.1016/j.bcp.2023.115965] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2023] [Revised: 11/29/2023] [Accepted: 11/30/2023] [Indexed: 12/05/2023]
Abstract
Atherosclerosis is the main underlying pathology of many cardiovascular diseases and is marked by plaque formation in the artery wall. It has posed a serious threat to the health of people all over the world. CD36 acts as a significant regulator of lipid homeostasis, which is closely associated with the onset and progression of atherosclerosis and may be a new therapeutic target. The abnormal overexpression of CD36 facilitates lipid accumulation, foam cell formation, inflammation, endothelial apoptosis, and thrombosis. Numerous natural products and lipid-lowering agents are found to target the suppression of CD36 or inhibit the upregulation of CD36 to prevent and treat atherosclerosis. Here, the structure, expression regulation and function of CD36 in atherosclerosis and its related pharmacological therapies are reviewed. This review highlights the importance of drugs targeting CD36 suppression in the treatment and prevention of atherosclerosis, in order to develop new therapeutic strategies and potential anti-atherosclerotic drugs both preclinically and clinically.
Collapse
Affiliation(s)
- Shi-Yuan Wen
- College of Basic Medical Sciences, Shanxi Medical University, Taiyuan, China
| | - Xiaoyan Zhi
- College of Basic Medical Sciences, Shanxi Medical University, Taiyuan, China
| | - Hai-Xin Liu
- School of Traditional Chinese Materia Medica, Shanxi University of Chinese Medicine, Taiyuan, China
| | - Xiaohui Wang
- College of Basic Medical Sciences, Shanxi Medical University, Taiyuan, China
| | - Yan-Yan Chen
- School of Medicine, Jiangsu University, Zhenjiang, China.
| | - Li Wang
- College of Basic Medical Sciences, Shanxi Medical University, Taiyuan, China.
| |
Collapse
|
3
|
Rodrigues C, Ismael S, Castela I, Barreiros-Mota I, Almeida MJ, Santos GM, Calhau C, Rocha JC, Faria A, Araújo JR. Trimethylamine increases intestinal fatty acid absorption: in vitro studies in a Caco-2 cell culture system. J Nutr Sci 2023; 12:e108. [PMID: 37964979 PMCID: PMC10641700 DOI: 10.1017/jns.2023.91] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Revised: 09/11/2023] [Accepted: 10/06/2023] [Indexed: 11/16/2023] Open
Abstract
Although elevated blood levels of trimethylamine N-oxide (TMAO) have been associated with atherosclerosis development in humans, the role of its gut microbiota-derived precursor, TMA, in this process has not been yet deciphered. Taking this into account, and the fact that increased intestinal fatty acid absorption contributes to atherosclerosis onset and progression, this study aimed to evaluate the effect of TMA on fatty acid absorption in a cell line that mimics human enterocytes. Caco-2 cells were treated with TMA 250 μM for 24 h. Fatty acid absorption was assessed by measuring the apical-to-basolateral transport and the intracellular levels of BODIPY-C12, a fluorescently labelled fatty acid analogue. Gene expression of the main intestinal fatty acid transporters was evaluated by real-time quantitative reverse transcription PCR. Compared to control conditions, TMA increased, in a time-dependent manner and by 20-50 %, the apical-to-basolateral transport and intracellular levels of BODIPY-C12 fatty acid in Caco-2 cells. Fatty acid transport protein 4 (FATP4) and fatty acid translocase (FAT)/CD36 gene expression were not stimulated by TMA, suggesting that TMA-induced increase in fatty acid transport may be mediated by an increase in FAT/CD36 and/or FATP4 activity and/or fatty acid passive transport. This study demonstrated that TMA increases the intestinal absorption of fatty acids. Future studies are necessary to confirm if this may constitute a novel mechanism that partially explains the existing positive association between the consumption of a diet rich in TMA sources (e.g. red meat) and the increased risk of atherosclerotic diseases.
Collapse
Key Words
- Caco-2 cells
- EDTA, ethylenediaminetetraacetic acid
- Enterocytes
- F, forward
- FABP, fatty acid-binding protein
- FABPpm, plasma membrane fatty acid-binding protein
- FAT/CD36, fatty acid translocase
- FATP4, fatty acid transport protein 4
- FBS, foetal bovine serum
- FSA, fluorescein sulphonic acid
- Fatty acid absorption
- HPRT, hypoxanthine guanine phosphoribosyltransferase
- MTT, 3-(4,5-dimethyl thiazol-2-yl)-2,5-diphenyl tetrazolium bromide
- PBS, phosphate-buffered saline
- R, reverse
- TG, triacylglycerol
- TMA, trimethylamine
- TMAO, trimethylamine N-oxide
- Trimethylamine
- qRT-PCR, real-time quantitative reverse transcription polymerase chain reaction
- sem, standard error of the mean
Collapse
Affiliation(s)
- Catarina Rodrigues
- Nutrition & Metabolism, CHRC, NOVA Medical School, Faculdade de Ciências Médicas, NMS, FCM, Universidade NOVA de Lisboa, Lisboa, Portugal
| | - Shámila Ismael
- Nutrition & Metabolism, CHRC, NOVA Medical School, Faculdade de Ciências Médicas, NMS, FCM, Universidade NOVA de Lisboa, Lisboa, Portugal
- Nutrition & Metabolism, CINTESIS@RISE, NOVA Medical School, Faculdade de Ciências Médicas, NMS, FCM, Universidade NOVA de Lisboa, Lisboa, Portugal
| | - Inês Castela
- Nutrition & Metabolism, CHRC, NOVA Medical School, Faculdade de Ciências Médicas, NMS, FCM, Universidade NOVA de Lisboa, Lisboa, Portugal
- Nutrition & Metabolism, CINTESIS@RISE, NOVA Medical School, Faculdade de Ciências Médicas, NMS, FCM, Universidade NOVA de Lisboa, Lisboa, Portugal
| | - Inês Barreiros-Mota
- Nutrition & Metabolism, CHRC, NOVA Medical School, Faculdade de Ciências Médicas, NMS, FCM, Universidade NOVA de Lisboa, Lisboa, Portugal
| | - Maria João Almeida
- Nutrition & Metabolism, CHRC, NOVA Medical School, Faculdade de Ciências Médicas, NMS, FCM, Universidade NOVA de Lisboa, Lisboa, Portugal
| | - Gilberto Maia Santos
- Nutrition & Metabolism, CHRC, NOVA Medical School, Faculdade de Ciências Médicas, NMS, FCM, Universidade NOVA de Lisboa, Lisboa, Portugal
| | - Conceição Calhau
- Nutrition & Metabolism, CINTESIS@RISE, NOVA Medical School, Faculdade de Ciências Médicas, NMS, FCM, Universidade NOVA de Lisboa, Lisboa, Portugal
- Unidade Universitária Lifestyle Medicine José de Mello Saúde by NOVA Medical School, Faculdade de Ciências Médicas, NMS, FCM, Universidade NOVA de Lisboa, Lisboa, Portugal
| | - Júlio César Rocha
- Nutrition & Metabolism, CINTESIS@RISE, NOVA Medical School, Faculdade de Ciências Médicas, NMS, FCM, Universidade NOVA de Lisboa, Lisboa, Portugal
- Reference Centre of Inherited Metabolic Diseases, Centro Hospitalar Universitário de Lisboa Central, Lisboa, Portugal
| | - Ana Faria
- Nutrition & Metabolism, CHRC, NOVA Medical School, Faculdade de Ciências Médicas, NMS, FCM, Universidade NOVA de Lisboa, Lisboa, Portugal
- Nutrition & Metabolism, CINTESIS@RISE, NOVA Medical School, Faculdade de Ciências Médicas, NMS, FCM, Universidade NOVA de Lisboa, Lisboa, Portugal
| | - João R. Araújo
- Nutrition & Metabolism, CINTESIS@RISE, NOVA Medical School, Faculdade de Ciências Médicas, NMS, FCM, Universidade NOVA de Lisboa, Lisboa, Portugal
| |
Collapse
|
4
|
Abstract
Long-chain fatty acids (FAs) are components of plasma membranes and an efficient fuel source and also serve as metabolic regulators through FA signaling mediated by membrane FA receptors. Impaired tissue FA uptake has been linked to major complications of obesity, including insulin resistance, cardiovascular disease, and type 2 diabetes. Fatty acid interactions with a membrane receptor and the initiation of signaling can modify pathways related to nutrient uptake and processing, cell proliferation or differentiation, and secretion of bioactive factors. Here, we review the major membrane receptors involved in FA uptake and FA signaling. We focus on two types of membrane receptors for long-chain FAs: CD36 and the G protein-coupled FA receptors FFAR1 and FFAR4. We describe key signaling pathways and metabolic outcomes for CD36, FFAR1, and FFAR4 and highlight the parallels that provide insight into FA regulation of cell function.
Collapse
Affiliation(s)
- Dmitri Samovski
- Center for Human Nutrition, Department of Medicine, Washington University School of Medicine, St. Louis, Missouri, USA;
| | - Miriam Jacome-Sosa
- Center for Human Nutrition, Department of Medicine, Washington University School of Medicine, St. Louis, Missouri, USA;
| | - Nada A Abumrad
- Center for Human Nutrition, Department of Medicine, Washington University School of Medicine, St. Louis, Missouri, USA; .,Department of Cell Biology and Physiology, Washington University School of Medicine, St. Louis, Missouri, USA
| |
Collapse
|
5
|
Cifarelli V, Peche VS, Abumrad NA. Vascular and lymphatic regulation of gastrointestinal function and disease risk. Biochim Biophys Acta Mol Cell Biol Lipids 2022; 1867:159207. [PMID: 35882297 PMCID: PMC9642046 DOI: 10.1016/j.bbalip.2022.159207] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Revised: 06/17/2022] [Accepted: 07/07/2022] [Indexed: 11/29/2022]
Abstract
The vascular and lymphatic systems in the gut regulate lipid transport while restricting transfer of commensal gut microbiota and directing immune cell trafficking. Increased permeability of the endothelial systems in the intestine associates with passage of antigens and microbiota from the gut into the bloodstream leading to tissue inflammation, the release of pro-inflammatory mediators and ultimately to abnormalities of systemic metabolism. Recent studies show that lipid metabolism maintains homeostasis and function of intestinal blood and lymphatic endothelial cells, BECs and LECs, respectively. This review highlights recent progress in this area, and information related to the contribution of the lipid transporter CD36, abundant in BECs and LECs, to gastrointestinal barrier integrity, inflammation, and to gut regulation of whole body metabolism. The potential role of endothelial lipid delivery in epithelial tissue renewal after injury and consequently in the risk of gastric and intestinal diseases is also discussed.
Collapse
Affiliation(s)
- Vincenza Cifarelli
- Department of Pharmacology and Physiology, Saint Louis University School of Medicine, St. Louis, MO, USA.
| | - Vivek S Peche
- Center for Human Nutrition, Department of Medicine, Washington University School of Medicine, St. Louis, MO, USA
| | - Nada A Abumrad
- Center for Human Nutrition, Department of Medicine, Washington University School of Medicine, St. Louis, MO, USA; Department of Cell Biology and Physiology, Washington University School of Medicine, St. Louis, MO, USA.
| |
Collapse
|
6
|
Touré M, Hichami A, Sayed A, Suliman M, Samb A, Khan NA. Association between polymorphisms and hypermethylation of CD36 gene in obese and obese diabetic Senegalese females. Diabetol Metab Syndr 2022; 14:117. [PMID: 35982478 PMCID: PMC9386198 DOI: 10.1186/s13098-022-00881-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/21/2021] [Accepted: 07/26/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Obesity and related metabolic disorders are associated with genetic and epigenetic alterations. In this study, we have examined the association between polymorphisms and hypermethylation of the CD36 gene promoter with obesity in Senegalese females with or without type 2 diabetes mellitus to identify novel molecular markers of these pathologies (obesity and type 2 diabetes mellitus). MATERIALS AND METHODS The study was conducted in Senegal with healthy lean control, obese, and obese diabetic (age; 49.98 years ± 7.52 vs 50.50 years ± 8.76 vs 51.06 ± 5.78, and body mass index (BMI); 24.19 kg/m2 ± 2.74 vs 34.30 kg/m2 ± 4.41 vs 33.09 kg/m2 ± 4.30). We determined three genetic polymorphisms of CD36 i.e., rs1761667, rs1527483, and rs3211867 by real-time polymerase chain reaction, and methylation of CPG islands of CD36 was assessed by methylation-specific polymerase chain reaction (MS-PCR) in DNA isolated from peripheral blood of each participant. Plasma sCD36 levels and DNA methyltransferase 3a (DNMT3a) levels were determined by enzyme-linked immunosorbent assay (ELISA). According to the standard laboratory protocol, all biochemical parameters were analyzed from fasting serum or plasma. RESULTS For rs1761667, obese and obese diabetic subjects had statistically significant different parameters depending on the genotypic distribution. These were waist size for obese and HDL cholesterol for obese diabetic, they were significantly higher in subjects harboring GG genotype of rs1761667 (respectively p = 0.04 and p = 0.04). For rs3211867, obese subjects harboring the AA/AC genotype had significantly higher BMI (p = 0.02) and total cholesterol (p = 0.03) than obese subjects harboring the CC genotype. At the same time, the obese diabetic subjects harboring the AA/AC genotype had total cholesterol levels significantly higher than the obese diabetic subjects harboring the CC genotype (p = 0.03). For rs1527483, only the control subjects had statistically significant different parameters depending on the genotypic distribution. The control subjects harboring the GG genotype had a significantly higher BMI than the control subjects harboring the AA/AG genotype (p = 0.003). The CD36 gene methylation was significantly 1.36 times more frequent in obese and obese diabetic compared to lean control (RR = 1.36; p = 0.04). DNMT3a levels were higher in subjects with CD36 gene methylation than in subjects without CD36 gene methylation in each group. Obese diabetic subjects with CD36 gene methylation had significantly fewer plasmas sCD36 (p = 0.03) and more LDL-cholesterol (p = 0.01) than obese diabetic subjects without CD36 gene methylation. In the control group, an increase in sCD36 levels would be associated with a decrease in total cholesterol and triglyceride levels (coef = -7647.56 p = 0.01 and coef = -2528.50 p = 0.048, respectively) would be associated with an increase in LDL cholesterol levels. For the obese group, an increase in sCD36 levels would be associated with an increase in fasting insulin levels (coef = 490.99 p = 0.02) and a decrease in glycated hemoglobin levels (coef = -1196.26 p = 0.03). An increase in the sCD36 levels would be associated with an increase in the triglyceride levels in the obese diabetic group (coef = 9937.41 p = 0.02). The AA/AC genotype of SNP rs3211867 polymorphism was significantly associated with CD36 gene methylation in the control and obese diabetic groups (respectively p = 0.05, p = 0.002; 95% CI). CONCLUSION These observations suggest that polymorphisms and epigenetic changes in CD36 gene promoters may be implicated in the onset of obesity and its related complication type 2 diabetes mellitus.
Collapse
Affiliation(s)
- Maïmouna Touré
- Laboratoire de Physiologie Humaine et d'Explorations Fonctionnelles, Faculté de Médecine, de Pharmacie et d'Odonto-Stomatologie (FMPOS) de l'Université Cheikh Anta Diop (UCAD), Dakar, Sénégal.
- Physiologie de La Nutrition & Toxicologie, INSERM U1231, Université de Bourgogne-Franche Comté (UBFC), Dijon AgroSup, 21000, Dijon, France.
- IRL3189 ESS (Environnement, Santé, Sociétés ), CNRS, CNRST, Bamoko-UCAD, Dakar, Sénégal.
| | - Aziz Hichami
- Physiologie de La Nutrition & Toxicologie, INSERM U1231, Université de Bourgogne-Franche Comté (UBFC), Dijon AgroSup, 21000, Dijon, France
| | - Amira Sayed
- Physiologie de La Nutrition & Toxicologie, INSERM U1231, Université de Bourgogne-Franche Comté (UBFC), Dijon AgroSup, 21000, Dijon, France
| | - Muhtadi Suliman
- Physiologie de La Nutrition & Toxicologie, INSERM U1231, Université de Bourgogne-Franche Comté (UBFC), Dijon AgroSup, 21000, Dijon, France
| | - Abdoulaye Samb
- Laboratoire de Physiologie Humaine et d'Explorations Fonctionnelles, Faculté de Médecine, de Pharmacie et d'Odonto-Stomatologie (FMPOS) de l'Université Cheikh Anta Diop (UCAD), Dakar, Sénégal
- IRL3189 ESS (Environnement, Santé, Sociétés ), CNRS, CNRST, Bamoko-UCAD, Dakar, Sénégal
| | - Naim Akhtar Khan
- Physiologie de La Nutrition & Toxicologie, INSERM U1231, Université de Bourgogne-Franche Comté (UBFC), Dijon AgroSup, 21000, Dijon, France
| |
Collapse
|
7
|
Cifarelli V, Kuda O, Yang K, Liu X, Gross RW, Pietka TA, Heo GS, Sultan D, Luehmann H, Lesser J, Ross M, Goldberg IJ, Gropler RJ, Liu Y, Abumrad NA. Cardiac immune cell infiltration associates with abnormal lipid metabolism. Front Cardiovasc Med 2022; 9:948332. [PMID: 36061565 PMCID: PMC9428462 DOI: 10.3389/fcvm.2022.948332] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Accepted: 07/22/2022] [Indexed: 01/05/2023] Open
Abstract
CD36 mediates the uptake of long-chain fatty acids (FAs), a major energy substrate for the myocardium. Under excessive FA supply, CD36 can cause cardiac lipid accumulation and inflammation while its deletion reduces heart FA uptake and lipid content and increases glucose utilization. As a result, CD36 was proposed as a therapeutic target for obesity-associated heart disease. However, more recent reports have shown that CD36 deficiency suppresses myocardial flexibility in fuel preference between glucose and FAs, impairing tissue energy balance, while CD36 absence in tissue macrophages reduces efferocytosis and myocardial repair after injury. In line with the latter homeostatic functions, we had previously reported that CD36-/- mice have chronic subclinical inflammation. Lipids are important for the maintenance of tissue homeostasis and there is limited information on heart lipid metabolism in CD36 deficiency. Here, we document in the hearts of unchallenged CD36-/- mice abnormalities in the metabolism of triglycerides, plasmalogens, cardiolipins, acylcarnitines, and arachidonic acid, and the altered remodeling of these lipids in response to an overnight fast. The hearts were examined for evidence of inflammation by monitoring the presence of neutrophils and pro-inflammatory monocytes/macrophages using the respective positron emission tomography (PET) tracers, 64Cu-AMD3100 and 68Ga-DOTA-ECL1i. We detected significant immune cell infiltration in unchallenged CD36-/- hearts as compared with controls and immune infiltration was also observed in hearts of mice with cardiomyocyte-specific CD36 deficiency. Together, the data show that the CD36-/- heart is in a non-homeostatic state that could compromise its stress response. Non-invasive immune cell monitoring in humans with partial or total CD36 deficiency could help evaluate the risk of impaired heart remodeling and disease.
Collapse
Affiliation(s)
- Vincenza Cifarelli
- Department of Medicine, Washington University School of Medicine, St. Louis, MO, United States,Department of Pharmacology and Physiology, Saint Louis University School of Medicine, St. Louis, MO, United States,*Correspondence: Vincenza Cifarelli,
| | - Ondrej Kuda
- Institute of Physiology, Czech Academy of Sciences, Prague, Czechia
| | - Kui Yang
- Department of Medicine, Washington University School of Medicine, St. Louis, MO, United States,Division of Complex Drug Analysis, Office of Testing and Research, U.S. Food and Drug Administration, St. Louis, MO, United States
| | - Xinping Liu
- Department of Medicine, Washington University School of Medicine, St. Louis, MO, United States
| | - Richard W. Gross
- Department of Medicine, Washington University School of Medicine, St. Louis, MO, United States
| | - Terri A. Pietka
- Department of Medicine, Washington University School of Medicine, St. Louis, MO, United States
| | - Gyu Seong Heo
- Department of Radiology, Washington University School of Medicine, St. Louis, MO, United States
| | - Deborah Sultan
- Department of Radiology, Washington University School of Medicine, St. Louis, MO, United States
| | - Hannah Luehmann
- Department of Radiology, Washington University School of Medicine, St. Louis, MO, United States
| | - Josie Lesser
- Department of Radiology, Washington University School of Medicine, St. Louis, MO, United States
| | - Morgan Ross
- Department of Pharmacology and Physiology, Saint Louis University School of Medicine, St. Louis, MO, United States
| | - Ira J. Goldberg
- Division of Endocrinology, Department of Medicine, New York University Grossman School of Medicine, New York, NY, United States
| | - Robert J. Gropler
- Department of Radiology, Washington University School of Medicine, St. Louis, MO, United States
| | - Yongjian Liu
- Department of Radiology, Washington University School of Medicine, St. Louis, MO, United States,Yongjian Liu,
| | - Nada A. Abumrad
- Department of Medicine, Washington University School of Medicine, St. Louis, MO, United States,Department of Cell Biology and Physiology, Washington University School of Medicine, St. Louis, MO, United States,Nada A. Abumrad,
| |
Collapse
|
8
|
Šerý O, Zeman T, Sheardová K, Vyhnálek M, Marková H, Laczó J, Lochman J, Kralik P, Vrzalová K, Dziedzinska R, Balcar VJ, Hort J. Six genetically linked mutations in the CD36 gene significantly delay the onset of Alzheimer's disease. Sci Rep 2022; 12:10994. [PMID: 35768560 DOI: 10.1038/s41598-022-15299-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2022] [Accepted: 06/22/2022] [Indexed: 11/08/2022] Open
Abstract
The risk of Alzheimer’s disease (AD) has a strong genetic component, also in the case of late-onset AD (LOAD). Attempts to sequence whole genome in large populations of subjects have identified only a few mutations common to most of the patients with AD. Targeting smaller well-characterized groups of subjects where specific genetic variations in selected genes could be related to precisely defined psychological traits typical of dementia is needed to better understand the heritability of AD. More than one thousand participants, categorized according to cognitive deficits, were assessed using 14 psychometric tests evaluating performance in five cognitive domains (attention/working memory, memory, language, executive functions, visuospatial functions). CD36 was selected as a gene previously shown to be implicated in the etiology of AD. A total of 174 polymorphisms were tested for associations with cognition-related traits and other AD-relevant data using the next generation sequencing. Several associations between single nucleotide polymorphisms (SNP’s) and the cognitive deficits have been found (rs12667404 with language performance, rs3211827 and rs41272372 with executive functions, rs137984792 with visuospatial performance). The most prominent association was found between a group of genotypes in six genetically linked and the age at which the AD patients presented with, or developed, a full-blown dementia. The identified alleles appear to be associated with a delay in the onset of LOAD. In silico studies suggested that the SNP’s alter the expression of CD36 thus potentially affecting CD36-related neuroinflammation and other molecular and cellular mechanisms known to be involved in the neuronal loss leading to AD. The main outcome of the study is an identification of a set of six new mutations apparently conferring a distinct protection against AD and delaying the onset by about 8 years. Additional mutations in CD36 associated with certain traits characteristic of the cognitive decline in AD have also been found.
Collapse
|
9
|
Lebrun LJ, Moreira S, Tavernier A, Niot I. Postprandial consequences of lipid absorption in the onset of obesity: Role of intestinal CD36. Biochim Biophys Acta Mol Cell Biol Lipids 2022; 1867:159154. [DOI: 10.1016/j.bbalip.2022.159154] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2021] [Revised: 03/14/2022] [Accepted: 03/16/2022] [Indexed: 10/18/2022]
|
10
|
Jacome-Sosa M, Miao ZF, Peche VS, Morris EF, Narendran R, Pietka KM, Samovski D, Lo HYG, Pietka T, Varro A, Love-Gregory L, Goldenring JR, Kuda O, Gamazon ER, Mills JC, Abumrad NA. CD36 maintains the gastric mucosa and associates with gastric disease. Commun Biol 2021; 4:1247. [PMID: 34728772 PMCID: PMC8563937 DOI: 10.1038/s42003-021-02765-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Accepted: 10/06/2021] [Indexed: 12/19/2022] Open
Abstract
The gastric epithelium is often exposed to injurious elements and failure of appropriate healing predisposes to ulcers, hemorrhage, and ultimately cancer. We examined the gastric function of CD36, a protein linked to disease and homeostasis. We used the tamoxifen model of gastric injury in mice null for Cd36 (Cd36-/-), with Cd36 deletion in parietal cells (PC-Cd36-/-) or in endothelial cells (EC-Cd36-/-). CD36 expresses on corpus ECs, on PC basolateral membranes, and in gastrin and ghrelin cells. Stomachs of Cd36-/- mice have altered gland organization and secretion, more fibronectin, and inflammation. Tissue respiration and mitochondrial efficiency are reduced. Phospholipids increased and triglycerides decreased. Mucosal repair after injury is impaired in Cd36-/- and EC-Cd36-/-, not in PC-Cd36-/- mice, and is due to defect of progenitor differentiation to PCs, not of progenitor proliferation or mature PC dysfunction. Relevance to humans is explored in the Vanderbilt BioVu using PrediXcan that links genetically-determined gene expression to clinical phenotypes, which associates low CD36 mRNA with gastritis, gastric ulcer, and gastro-intestinal hemorrhage. A CD36 variant predicted to disrupt an enhancer site associates (p < 10-17) to death from gastro-intestinal hemorrhage in the UK Biobank. The findings support role of CD36 in gastric tissue repair, and its deletion associated with chronic diseases that can predispose to malignancy.
Collapse
Affiliation(s)
- Miriam Jacome-Sosa
- Center for Human Nutrition, Department of Medicine, Washington University School of Medicine, St. Louis, MO, USA.
| | - Zhi-Feng Miao
- Department of Surgical Oncology, Laboratory of Precision Diagnosis and Treatment of Gastrointestinal Tumors, First Hospital of China Medical University, Shenyang, China
- Division of Gastroenterology, Department of Medicine, Washington University School of Medicine, St. Louis, MO, USA
| | - Vivek S Peche
- Center for Human Nutrition, Department of Medicine, Washington University School of Medicine, St. Louis, MO, USA
| | - Edward F Morris
- Center for Human Nutrition, Department of Medicine, Washington University School of Medicine, St. Louis, MO, USA
| | - Ramkumar Narendran
- Center for Human Nutrition, Department of Medicine, Washington University School of Medicine, St. Louis, MO, USA
| | - Kathryn M Pietka
- Center for Human Nutrition, Department of Medicine, Washington University School of Medicine, St. Louis, MO, USA
| | - Dmitri Samovski
- Center for Human Nutrition, Department of Medicine, Washington University School of Medicine, St. Louis, MO, USA
| | - Hei-Yong G Lo
- Division of Gastroenterology, Department of Medicine, Washington University School of Medicine, St. Louis, MO, USA
| | - Terri Pietka
- Center for Human Nutrition, Department of Medicine, Washington University School of Medicine, St. Louis, MO, USA
| | - Andrea Varro
- Institute of Translational Medicine, University of Liverpool, Liverpool, UK
| | - Latisha Love-Gregory
- Department of Pathology & Immunology, Washington University School of Medicine, St Louis, MO, USA
| | - James R Goldenring
- Departments of Surgery and Cell and Developmental Biology, Vanderbilt University Medical Center and VA Medical Center, Nashville, TN, USA
| | - Ondrej Kuda
- Institute of Physiology, Czech Academy of Sciences, Videnska 1083, 14220 Prague 4, Czech Republic
| | - Eric R Gamazon
- Division of Genetic Medicine, Vanderbilt University Medical Center, Nashville, TN, USA
- MRC Epidemiology Unit, University of Cambridge, Cambridge, UK
| | - Jason C Mills
- Gastroenterology & Hepatology Section, Departments of Medicine and of Molecular and Cellular Biology, Baylor College of Medicine, Houston, TX, USA.
| | - Nada A Abumrad
- Center for Human Nutrition, Department of Medicine, Washington University School of Medicine, St. Louis, MO, USA.
- Department of Cell Biology and Physiology, Washington University School of Medicine, St. Louis, MO, USA.
| |
Collapse
|
11
|
Abstract
PURPOSE OF REVIEW Epigenetic modifications via DNA methylation have previously been linked to blood lipid levels, dyslipidemias, and atherosclerosis. The purpose of this review is to discuss current literature on the role of DNA methylation on lipid traits and their associated pathologies. RECENT FINDINGS Candidate gene and epigenome-wide approaches have identified differential methylation of genes associated with lipid traits (particularly CPT1A, ABCG1, SREBF1), and novel approaches are being implemented to further characterize these relationships. Moreover, studies on environmental factors have shown that methylation variations at lipid-related genes are associated with diet and pollution exposure. Further investigation is needed to elucidate the directionality of the associations between the environment, lipid traits, and epigenome. Future studies should also seek to increase the diversity of cohorts, as European and Asian ancestry populations are the predominant study populations in the current literature.
Collapse
Affiliation(s)
- Alana C Jones
- Medical Scientist Training Program, University of Alabama-Birmingham, Birmingham, AL, USA.,Department of Epidemiology, School of Public Health, University of Alabama-Birmingham, Birmingham, AL, USA
| | - Marguerite R Irvin
- Department of Epidemiology, School of Public Health, University of Alabama-Birmingham, Birmingham, AL, USA
| | - Steven A Claas
- Department of Epidemiology, College of Public Health, University of Kentucky, 111 Washington Ave, Lexington, KY, 40508, USA
| | - Donna K Arnett
- Department of Epidemiology, College of Public Health, University of Kentucky, 111 Washington Ave, Lexington, KY, 40508, USA.
| |
Collapse
|
12
|
Abstract
PURPOSE OF REVIEW The functions, genetic variations and impact of apolipoprotein E on lipoprotein metabolism in general are placed in the context of clinical practice dealing with moderate dyslipidaemia as well as dysbetalipoproteinemia, a highly atherogenic disorder and lipoprotein glomerulopathy. RECENT FINDINGS Additional variants of apolipoprotein E and participation of apolipoprotein E in inflammation are of interest. The mostly favourable effects of apolipoprotein E2 as well as the atherogenic nature of apolipoproteinE4, which has an association with cognitive impairment, are confirmed. The contribution of remnant lipoproteins of triglyceride-rich lipoproteins, of which dysbetalipoproteinemia represents an extreme, is explored in atherosclerosis. Mimetic peptides may present new therapeutic approaches. Apolipoprotein E is an important determinant of the lipid profile and cardiovascular health in the population at large and can precipitate dysbetalipoproteinemia and glomerulopathy. Awareness of apolipoprotein E polymorphisms should improve medical care.
Collapse
|
13
|
Zhao L, Li Y, Ding Q, Li Y, Chen Y, Ruan XZ. CD36 Senses Dietary Lipids and Regulates Lipids Homeostasis in the Intestine. Front Physiol 2021; 12:669279. [PMID: 33995128 PMCID: PMC8113691 DOI: 10.3389/fphys.2021.669279] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Accepted: 03/22/2021] [Indexed: 12/24/2022] Open
Abstract
Dietary lipids absorbed in the intestine are closely related to the development of metabolic syndrome. CD36 is a multi-functional scavenger receptor with multiple ligands, which plays important roles in developing hyperlipidemia, insulin resistance, and metabolic syndrome. In the intestine, CD36 is abundant on the brush border membrane of the enterocytes mainly localized in proximal intestine. This review recapitulates the update and current advances on the importance of intestinal CD36 in sensing dietary lipids and regulating intestinal lipids uptake, synthesis and transport, and regulating intestinal hormones secretion. However, further studies are still needed to demonstrate the complex interactions between intestinal CD36 and dietary lipids, as well as its importance in diet associated metabolic syndrome.
Collapse
Affiliation(s)
- Lei Zhao
- Centre for Lipid Research, Key Laboratory of Molecular Biology for Infectious Diseases, Ministry of Education, Department of Infectious Diseases, Institute for Viral Hepatitis, The Second Affiliated Hospital, Chongqing Medical University, Chongqing, China
| | - Yuqi Li
- Centre for Lipid Research, Key Laboratory of Molecular Biology for Infectious Diseases, Ministry of Education, Department of Infectious Diseases, Institute for Viral Hepatitis, The Second Affiliated Hospital, Chongqing Medical University, Chongqing, China
| | - Qiuying Ding
- Centre for Lipid Research, Key Laboratory of Molecular Biology for Infectious Diseases, Ministry of Education, Department of Infectious Diseases, Institute for Viral Hepatitis, The Second Affiliated Hospital, Chongqing Medical University, Chongqing, China
| | - Yanping Li
- Centre for Lipid Research, Key Laboratory of Molecular Biology for Infectious Diseases, Ministry of Education, Department of Infectious Diseases, Institute for Viral Hepatitis, The Second Affiliated Hospital, Chongqing Medical University, Chongqing, China
| | - Yaxi Chen
- Centre for Lipid Research, Key Laboratory of Molecular Biology for Infectious Diseases, Ministry of Education, Department of Infectious Diseases, Institute for Viral Hepatitis, The Second Affiliated Hospital, Chongqing Medical University, Chongqing, China
| | - Xiong Z Ruan
- Centre for Lipid Research, Key Laboratory of Molecular Biology for Infectious Diseases, Ministry of Education, Department of Infectious Diseases, Institute for Viral Hepatitis, The Second Affiliated Hospital, Chongqing Medical University, Chongqing, China.,National Clinical Research Center for Aging and Medicine, Huashan Hospital, Fudan University, Shanghai, China.,John Moorhead Research Laboratory, Centre for Nephrology, University College London Medical School, Royal Free Campus, University College London, London, United Kingdom
| |
Collapse
|
14
|
Abstract
Lipid uptake and metabolism are central to the function of organs such as heart, skeletal muscle, and adipose tissue. Although most heart energy derives from fatty acids (FAs), excess lipid accumulation can cause cardiomyopathy. Similarly, high delivery of cholesterol can initiate coronary artery atherosclerosis. Hearts and arteries-unlike liver and adrenals-have nonfenestrated capillaries and lipid accumulation in both health and disease requires lipid movement from the circulation across the endothelial barrier. This review summarizes recent in vitro and in vivo findings on the importance of endothelial cell receptors and uptake pathways in regulating FAs and cholesterol uptake in normal physiology and cardiovascular disease. We highlight clinical and experimental data on the roles of ECs in lipid supply to tissues, heart, and arterial wall in particular, and how this affects organ metabolism and function. Models of FA uptake into ECs suggest that receptor-mediated uptake predominates at low FA concentrations, such as during fasting, whereas FA uptake during lipolysis of chylomicrons may involve paracellular movement. Similarly, in the setting of an intact arterial endothelial layer, recent and historic data support a role for receptor-mediated processes in the movement of lipoproteins into the subarterial space. We conclude with thoughts on the need to better understand endothelial lipid transfer for fuller comprehension of the pathophysiology of hyperlipidemia, and lipotoxic diseases such as some forms of cardiomyopathy and atherosclerosis.
Collapse
Affiliation(s)
- Nada A Abumrad
- Division of Nutritional Sciences, Department of Medicine, Washington University School of Medicine, Saint Louis, MO (N.A.A., D.S., T.P.)
| | - Ainara G Cabodevilla
- Division of Endocrinology, Diabetes and Metabolism, Department of Medicine, New York University Grossman School of Medicine (A.G.C., D.B., I.J.G.)
| | - Dmitri Samovski
- Division of Nutritional Sciences, Department of Medicine, Washington University School of Medicine, Saint Louis, MO (N.A.A., D.S., T.P.)
| | - Terri Pietka
- Division of Nutritional Sciences, Department of Medicine, Washington University School of Medicine, Saint Louis, MO (N.A.A., D.S., T.P.)
| | - Debapriya Basu
- Division of Endocrinology, Diabetes and Metabolism, Department of Medicine, New York University Grossman School of Medicine (A.G.C., D.B., I.J.G.)
| | - Ira J Goldberg
- Division of Endocrinology, Diabetes and Metabolism, Department of Medicine, New York University Grossman School of Medicine (A.G.C., D.B., I.J.G.)
| |
Collapse
|
15
|
Dobri AM, Dudău M, Enciu AM, Hinescu ME. CD36 in Alzheimer's Disease: An Overview of Molecular Mechanisms and Therapeutic Targeting. Neuroscience 2020; 453:301-311. [PMID: 33212223 DOI: 10.1016/j.neuroscience.2020.11.003] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Revised: 10/17/2020] [Accepted: 11/03/2020] [Indexed: 12/11/2022]
Abstract
CD36 is a membrane protein with wide distribution in the human body, is enriched in the monocyte-macrophage system and endothelial cells, and is involved in the cellular uptake of long chain fatty acids (LCFA) and oxidized low-density lipoproteins. It is also a scavenger receptor, binding hydrophobic amyloid fibrils found in the Alzheimer's disease (AD) brain. In neurobiology research, it has been mostly studied in relationship with chronic ischemia and stroke, but it was also related to amyloid clearance by microglial phagocytosis. In AD animal models, amyloid binding to CD36 has been consistently correlated with a pro-inflammatory response. Therapeutic approaches have two main focuses: CD36 blockade with monoclonal antibodies or small molecules, which is beneficial in terms of the inflammatory milieu, and upregulation of CD36 for increased amyloid clearance. The balance of the two approaches, centered on microglia, is poorly understood. Furthermore, CD36 evaluation in AD clinical studies is still at a very early stage and there is a gap in the knowledge regarding the impact of LCFA on AD progression and CD36 expression and genetic phenotype. This review summarizes the role played by CD36 in the pathogenic amyloid cascade and explore the translatability of preclinical data towards clinical research.
Collapse
Affiliation(s)
- Ana-Maria Dobri
- "Victor Babes" National Institute of Pathology, 99-101 Splaiul Independentei, 050096 Bucharest, Romania; "Carol Davila" University of Medicine and Pharmacy, 5 Eroilor Sanitari Blvd, 050047 Bucharest, Romania.
| | - Maria Dudău
- "Victor Babes" National Institute of Pathology, 99-101 Splaiul Independentei, 050096 Bucharest, Romania; "Carol Davila" University of Medicine and Pharmacy, 5 Eroilor Sanitari Blvd, 050047 Bucharest, Romania.
| | - Ana-Maria Enciu
- "Victor Babes" National Institute of Pathology, 99-101 Splaiul Independentei, 050096 Bucharest, Romania; "Carol Davila" University of Medicine and Pharmacy, 5 Eroilor Sanitari Blvd, 050047 Bucharest, Romania.
| | - Mihail Eugen Hinescu
- "Victor Babes" National Institute of Pathology, 99-101 Splaiul Independentei, 050096 Bucharest, Romania; "Carol Davila" University of Medicine and Pharmacy, 5 Eroilor Sanitari Blvd, 050047 Bucharest, Romania
| |
Collapse
|
16
|
Abstract
PURPOSE OF REVIEW Atherosclerosis is a chronic disease characterized by lipid retention and inflammation in the artery wall. The retention and oxidation of low-density lipoprotein (LDL) in sub-endothelial space play a critical role in atherosclerotic plaque formation and destabilization. Oxidized LDL (ox-LDL) and other modified LDL particles are avidly taken up by endothelial cells, smooth muscle cells, and macrophages mainly through several scavenger receptors, including CD36 which is a class B scavenger receptor and membrane glycoprotein. RECENT FINDINGS Animal studies performed on CD36-deficient mice suggest that deficiency of CD36 prevents the development of atherosclerosis, though with some debate. CD36 serves as a signaling hub protein at the crossroad of inflammation, lipid metabolism, and fatty acid metabolism. In addition, the level of soluble CD36 (unattached to cells) in the circulating blood was elevated in patients with atherosclerosis and other metabolic disorders. We performed a state-of-the-art review on the structure, ligands, functions, and regulation of CD36 in the context of atherosclerosis by focusing on the pathological role of CD36 in the dysfunction of endothelial cells, smooth muscle cells, monocytes/macrophages, and platelets. Finally, we highlight therapeutic possibilities to target CD36 expression/activity in atherosclerosis.
Collapse
|
17
|
Berrichi M, Hichami A, Addou-Klouche L, Sayed Khan A, Khan NA. CD36 and GPR120 Methylation Associates with Orosensory Detection Thresholds for Fat and Bitter in Algerian Young Obese Children. J Clin Med 2020; 9:jcm9061956. [PMID: 32585828 PMCID: PMC7356363 DOI: 10.3390/jcm9061956] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2020] [Revised: 06/16/2020] [Accepted: 06/22/2020] [Indexed: 12/13/2022] Open
Abstract
Background: The spontaneous preference for dietary fat is regulated by two lingual lipid sensors (CD36 and GPR120) in humans and rodents. Our objective was to investigate whether obesity in children is associated with methylation of lipid sensor genes, and whether this alteration was implicated in altered gustatory perception of fat and bitter and increased preference of palatable foods. Methods: School children were recruited and classified according to their body mass index (BMI) z-score into two groups: obese and lean children. The detection of orosensory perception for oleic acid and 6-n-propylthiouracil was assessed by using a 3-alternative forced-choice test. After blood DNA extraction, methylation patterns were investigated by methylation-specific PCR. The children were also subjected to a food habit questionnaire. Results: Obese children showed higher lipid and bitter detection thresholds than lean children. Besides, more obese children presented higher methylation level of the CpG sites than lean participants. Interestingly, CD36 and GPR120 gene methylation was associated with high lipid detection thresholds in obese participants. The obese participants preferred highly palatable fat-rich food items, associated with CD36 and GPR120 gene methylation. Conclusion: Epigenetic changes in CD36 and GPR120 genes might contribute to low orosensory perception of fat and bitter taste, and might be, consequently, critically involved in obesity in children
Collapse
Affiliation(s)
- Moustafa Berrichi
- Physiologie de la Nutrition & Toxicologie, U1231 INSERM/Université de Bourgogne-Franche Comté (UBFC)/AgroSupDijon, 21000 Dijon, France; (M.B.); (A.H.); (A.S.K.)
- Laboratoire de Biologie Moléculaire Appliquée et Immunologie, Université Abou Bakr Belkaid, Tlemcen 13000, Algeria
| | - Aziz Hichami
- Physiologie de la Nutrition & Toxicologie, U1231 INSERM/Université de Bourgogne-Franche Comté (UBFC)/AgroSupDijon, 21000 Dijon, France; (M.B.); (A.H.); (A.S.K.)
| | - Lynda Addou-Klouche
- Faculté des Science de la Vie et de la Nature, Université Djillali Liabès, Sidi Bel Abbès 22000, Algeria;
| | - Amira Sayed Khan
- Physiologie de la Nutrition & Toxicologie, U1231 INSERM/Université de Bourgogne-Franche Comté (UBFC)/AgroSupDijon, 21000 Dijon, France; (M.B.); (A.H.); (A.S.K.)
| | - Naim Akhtar Khan
- Physiologie de la Nutrition & Toxicologie, U1231 INSERM/Université de Bourgogne-Franche Comté (UBFC)/AgroSupDijon, 21000 Dijon, France; (M.B.); (A.H.); (A.S.K.)
- Correspondence: ; Tel.: +33-3-80-39-63-30-12
| |
Collapse
|
18
|
Abstract
CD36 is a transmembrane protein involved in fatty acid translocation, scavenging for oxidized fatty acids acting as a receptor for adhesion molecules. It is expressed on macrophages, as well as other types of cells, such as endothelial and adipose cells. CD36 participates in muscle lipid uptake, adipose energy storage, and gut fat absorption. Recently, several preclinical and clinical studies demonstrated that upregulation of CD36 is a prerequisite for tumor metastasis. Cancer metastasis-related research emerged much later and has been less investigated, though it is equally or even more important. CD36 protein expression can be modified by epigenetic changes and post-transcriptional interference from non-coding RNAs. Some data indicate modulation of CD36 expression in specific cell types by epigenetic changes via DNA methylation patterns or histone tails, or through miRNA interference, but this is largely unexplored. The few papers addressing this topic refer mostly to lipid metabolism-related pathologies, whereas in cancer research, data are even more scarce. The aim of this review was to summarize major epigenetic and post-transcriptional mechanisms that impact CD36 expression in relation to various pathologies while highlighting the areas in need of further exploration.
Collapse
Affiliation(s)
- Cristina-Mariana Niculite
- Cell Biology Department, "Victor Babes" National Institute of Pathology, Bucharest, Romania.,Department of Cellular and Molecular Biology and Histology, "Carol Davila" University of Medicine and Pharmacy, Bucharest, Romania
| | - Ana-Maria Enciu
- Cell Biology Department, "Victor Babes" National Institute of Pathology, Bucharest, Romania.,Department of Cellular and Molecular Biology and Histology, "Carol Davila" University of Medicine and Pharmacy, Bucharest, Romania
| | - Mihail Eugen Hinescu
- Cell Biology Department, "Victor Babes" National Institute of Pathology, Bucharest, Romania.,Department of Cellular and Molecular Biology and Histology, "Carol Davila" University of Medicine and Pharmacy, Bucharest, Romania
| |
Collapse
|
19
|
Abstract
Obesity is among the most threatening health burdens worldwide and its prevalence has markedly increased over the last decades. Obesity maybe considered a heritable trait. Identifications of rare cases of monogenic obesity unveiled that hypothalamic circuits and the brain-adipose axis play an important role in the regulation of energy homeostasis, appetite, hunger and satiety. For example, mutations in the leptin gene cause obesity through almost unsuppressed overeating. Common (multifactorial) obesity, most likely resulting from a concerted interplay of genetic, epigenetic and environmental factors, is clearly linked to genetic predisposition by multiple risk variants, which, however only account for a minor part of the general BMI variability. Although GWAS opened new avenues in elucidating the complex genetics behind common obesity, understanding the biological mechanisms relative to the specific risk contributing to obesity remains poorly understood. Non-genetic factors such as eating behavior or physical activity strongly modulate the individual risk for developing obesity. These factors may interact with genetic predisposition for obesity through epigenetic mechanisms. Thus, here, we review the current knowledge about monogenic and common (multifactorial) obesity highlighting the important recent advances in our knowledge on how epigenetic regulation is involved in the etiology of obesity.
Collapse
Affiliation(s)
- Kerstin Rohde
- Leipzig University Medical Center, IFB Adiposity Diseases, Leipzig 04103, Germany; University of Oslo, Institute of Clinical Medicine, Oslo 0316, Norway.
| | - Maria Keller
- Leipzig University Medical Center, IFB Adiposity Diseases, Leipzig 04103, Germany.
| | - Lars la Cour Poulsen
- Akershus University Hospital, Department of Clinical Molecular Biology, Medical Division, Lørenskog 1478, Norway.
| | - Matthias Blüher
- Department of Medicine, University of Leipzig, Leipzig 04103, Germany.
| | - Peter Kovacs
- Leipzig University Medical Center, IFB Adiposity Diseases, Leipzig 04103, Germany.
| | - Yvonne Böttcher
- Leipzig University Medical Center, IFB Adiposity Diseases, Leipzig 04103, Germany; University of Oslo, Institute of Clinical Medicine, Oslo 0316, Norway; Akershus University Hospital, Department of Clinical Molecular Biology, Medical Division, Lørenskog 1478, Norway.
| |
Collapse
|
20
|
Cifarelli V, Eichmann A. The Intestinal Lymphatic System: Functions and Metabolic Implications. Cell Mol Gastroenterol Hepatol 2018; 7:503-513. [PMID: 30557701 DOI: 10.1016/j.jcmgh.2018.12.002'||'] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/29/2018] [Revised: 12/07/2018] [Accepted: 12/07/2018] [Indexed: 01/29/2024]
Abstract
The lymphatic system of the gut plays important roles in the transport of dietary lipids, as well as in immunosurveillance and removal of interstitial fluid. Historically, despite its crucial functions in intestinal homeostasis, the lymphatic system has been poorly studied. In the last 2 decades, identification of specific molecular mediators of lymphatic endothelial cells (LECs) growth together with novel genetic approaches and intravital imaging techniques, have advanced our understanding of the mechanisms regulating intestinal lymphatic physiology in health and disease. As its metabolic implications are gaining recognition, intestinal lymphatic biology is currently experiencing a surge in interest. This review describes current knowledge related to molecular control of intestinal lymphatic vessel structure and function. We discuss regulation of chylomicron entry into lymphatic vessels by vascular endothelial growth factors (VEGFs), hormones, transcription factors and the specific signaling pathways involved. The information covered supports the emerging role of intestinal lymphatics in etiology of the metabolic syndrome and their potential as a therapeutic target.
Collapse
Affiliation(s)
- Vincenza Cifarelli
- Department of Medicine, Center for Human Nutrition, Washington University School of Medicine, St. Louis, Missouri.
| | - Anne Eichmann
- Cardiovascular Research Center and Department of Cellular and Molecular Physiology, Yale University School of Medicine, New Haven, Connecticut; INSERM U970, Paris Cardiovascular Research Center, Paris, France
| |
Collapse
|
21
|
Cifarelli V, Eichmann A. The Intestinal Lymphatic System: Functions and Metabolic Implications. Cell Mol Gastroenterol Hepatol 2018; 7:503-513. [PMID: 30557701 DOI: 10.1016/j.jcmgh.2018.12.002" and 2*3*8=6*8 and "tkbp"="tkbp] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/29/2018] [Revised: 12/07/2018] [Accepted: 12/07/2018] [Indexed: 01/29/2024]
Abstract
The lymphatic system of the gut plays important roles in the transport of dietary lipids, as well as in immunosurveillance and removal of interstitial fluid. Historically, despite its crucial functions in intestinal homeostasis, the lymphatic system has been poorly studied. In the last 2 decades, identification of specific molecular mediators of lymphatic endothelial cells (LECs) growth together with novel genetic approaches and intravital imaging techniques, have advanced our understanding of the mechanisms regulating intestinal lymphatic physiology in health and disease. As its metabolic implications are gaining recognition, intestinal lymphatic biology is currently experiencing a surge in interest. This review describes current knowledge related to molecular control of intestinal lymphatic vessel structure and function. We discuss regulation of chylomicron entry into lymphatic vessels by vascular endothelial growth factors (VEGFs), hormones, transcription factors and the specific signaling pathways involved. The information covered supports the emerging role of intestinal lymphatics in etiology of the metabolic syndrome and their potential as a therapeutic target.
Collapse
Affiliation(s)
- Vincenza Cifarelli
- Department of Medicine, Center for Human Nutrition, Washington University School of Medicine, St. Louis, Missouri.
| | - Anne Eichmann
- Cardiovascular Research Center and Department of Cellular and Molecular Physiology, Yale University School of Medicine, New Haven, Connecticut; INSERM U970, Paris Cardiovascular Research Center, Paris, France
| |
Collapse
|
22
|
Cifarelli V, Eichmann A. The Intestinal Lymphatic System: Functions and Metabolic Implications. Cell Mol Gastroenterol Hepatol 2018; 7:503-513. [PMID: 30557701 DOI: 10.1016/j.jcmgh.2018.12.002' and 2*3*8=6*8 and 'gakc'='gakc] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/29/2018] [Revised: 12/07/2018] [Accepted: 12/07/2018] [Indexed: 01/29/2024]
Abstract
The lymphatic system of the gut plays important roles in the transport of dietary lipids, as well as in immunosurveillance and removal of interstitial fluid. Historically, despite its crucial functions in intestinal homeostasis, the lymphatic system has been poorly studied. In the last 2 decades, identification of specific molecular mediators of lymphatic endothelial cells (LECs) growth together with novel genetic approaches and intravital imaging techniques, have advanced our understanding of the mechanisms regulating intestinal lymphatic physiology in health and disease. As its metabolic implications are gaining recognition, intestinal lymphatic biology is currently experiencing a surge in interest. This review describes current knowledge related to molecular control of intestinal lymphatic vessel structure and function. We discuss regulation of chylomicron entry into lymphatic vessels by vascular endothelial growth factors (VEGFs), hormones, transcription factors and the specific signaling pathways involved. The information covered supports the emerging role of intestinal lymphatics in etiology of the metabolic syndrome and their potential as a therapeutic target.
Collapse
Affiliation(s)
- Vincenza Cifarelli
- Department of Medicine, Center for Human Nutrition, Washington University School of Medicine, St. Louis, Missouri.
| | - Anne Eichmann
- Cardiovascular Research Center and Department of Cellular and Molecular Physiology, Yale University School of Medicine, New Haven, Connecticut; INSERM U970, Paris Cardiovascular Research Center, Paris, France
| |
Collapse
|
23
|
Cifarelli V, Eichmann A. The Intestinal Lymphatic System: Functions and Metabolic Implications. Cell Mol Gastroenterol Hepatol 2018; 7:503-513. [PMID: 30557701 DOI: 10.1016/j.jcmgh.2018.12.002����%2527%2522\'\"] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/29/2018] [Revised: 12/07/2018] [Accepted: 12/07/2018] [Indexed: 01/29/2024]
Abstract
The lymphatic system of the gut plays important roles in the transport of dietary lipids, as well as in immunosurveillance and removal of interstitial fluid. Historically, despite its crucial functions in intestinal homeostasis, the lymphatic system has been poorly studied. In the last 2 decades, identification of specific molecular mediators of lymphatic endothelial cells (LECs) growth together with novel genetic approaches and intravital imaging techniques, have advanced our understanding of the mechanisms regulating intestinal lymphatic physiology in health and disease. As its metabolic implications are gaining recognition, intestinal lymphatic biology is currently experiencing a surge in interest. This review describes current knowledge related to molecular control of intestinal lymphatic vessel structure and function. We discuss regulation of chylomicron entry into lymphatic vessels by vascular endothelial growth factors (VEGFs), hormones, transcription factors and the specific signaling pathways involved. The information covered supports the emerging role of intestinal lymphatics in etiology of the metabolic syndrome and their potential as a therapeutic target.
Collapse
Affiliation(s)
- Vincenza Cifarelli
- Department of Medicine, Center for Human Nutrition, Washington University School of Medicine, St. Louis, Missouri.
| | - Anne Eichmann
- Cardiovascular Research Center and Department of Cellular and Molecular Physiology, Yale University School of Medicine, New Haven, Connecticut; INSERM U970, Paris Cardiovascular Research Center, Paris, France
| |
Collapse
|
24
|
Cifarelli V, Eichmann A. The Intestinal Lymphatic System: Functions and Metabolic Implications. Cell Mol Gastroenterol Hepatol 2018; 7:503-513. [PMID: 30557701 DOI: 10.1016/j.jcmgh.2018.12.002'"] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/29/2018] [Revised: 12/07/2018] [Accepted: 12/07/2018] [Indexed: 01/29/2024]
Abstract
The lymphatic system of the gut plays important roles in the transport of dietary lipids, as well as in immunosurveillance and removal of interstitial fluid. Historically, despite its crucial functions in intestinal homeostasis, the lymphatic system has been poorly studied. In the last 2 decades, identification of specific molecular mediators of lymphatic endothelial cells (LECs) growth together with novel genetic approaches and intravital imaging techniques, have advanced our understanding of the mechanisms regulating intestinal lymphatic physiology in health and disease. As its metabolic implications are gaining recognition, intestinal lymphatic biology is currently experiencing a surge in interest. This review describes current knowledge related to molecular control of intestinal lymphatic vessel structure and function. We discuss regulation of chylomicron entry into lymphatic vessels by vascular endothelial growth factors (VEGFs), hormones, transcription factors and the specific signaling pathways involved. The information covered supports the emerging role of intestinal lymphatics in etiology of the metabolic syndrome and their potential as a therapeutic target.
Collapse
Affiliation(s)
- Vincenza Cifarelli
- Department of Medicine, Center for Human Nutrition, Washington University School of Medicine, St. Louis, Missouri.
| | - Anne Eichmann
- Cardiovascular Research Center and Department of Cellular and Molecular Physiology, Yale University School of Medicine, New Haven, Connecticut; INSERM U970, Paris Cardiovascular Research Center, Paris, France
| |
Collapse
|
25
|
Cifarelli V, Eichmann A. The Intestinal Lymphatic System: Functions and Metabolic Implications. Cell Mol Gastroenterol Hepatol 2018; 7:503-513. [PMID: 30557701 DOI: 10.1016/j.jcmgh.2018.12.002%' and 2*3*8=6*8 and 'htng'!='htng%] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/29/2018] [Revised: 12/07/2018] [Accepted: 12/07/2018] [Indexed: 01/29/2024]
Abstract
The lymphatic system of the gut plays important roles in the transport of dietary lipids, as well as in immunosurveillance and removal of interstitial fluid. Historically, despite its crucial functions in intestinal homeostasis, the lymphatic system has been poorly studied. In the last 2 decades, identification of specific molecular mediators of lymphatic endothelial cells (LECs) growth together with novel genetic approaches and intravital imaging techniques, have advanced our understanding of the mechanisms regulating intestinal lymphatic physiology in health and disease. As its metabolic implications are gaining recognition, intestinal lymphatic biology is currently experiencing a surge in interest. This review describes current knowledge related to molecular control of intestinal lymphatic vessel structure and function. We discuss regulation of chylomicron entry into lymphatic vessels by vascular endothelial growth factors (VEGFs), hormones, transcription factors and the specific signaling pathways involved. The information covered supports the emerging role of intestinal lymphatics in etiology of the metabolic syndrome and their potential as a therapeutic target.
Collapse
Affiliation(s)
- Vincenza Cifarelli
- Department of Medicine, Center for Human Nutrition, Washington University School of Medicine, St. Louis, Missouri.
| | - Anne Eichmann
- Cardiovascular Research Center and Department of Cellular and Molecular Physiology, Yale University School of Medicine, New Haven, Connecticut; INSERM U970, Paris Cardiovascular Research Center, Paris, France
| |
Collapse
|
26
|
Cifarelli V, Eichmann A. The Intestinal Lymphatic System: Functions and Metabolic Implications. Cell Mol Gastroenterol Hepatol 2018; 7:503-513. [PMID: 30557701 DOI: 10.1016/j.jcmgh.2018.12.002mueybbdd] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/29/2018] [Revised: 12/07/2018] [Accepted: 12/07/2018] [Indexed: 01/29/2024]
Abstract
The lymphatic system of the gut plays important roles in the transport of dietary lipids, as well as in immunosurveillance and removal of interstitial fluid. Historically, despite its crucial functions in intestinal homeostasis, the lymphatic system has been poorly studied. In the last 2 decades, identification of specific molecular mediators of lymphatic endothelial cells (LECs) growth together with novel genetic approaches and intravital imaging techniques, have advanced our understanding of the mechanisms regulating intestinal lymphatic physiology in health and disease. As its metabolic implications are gaining recognition, intestinal lymphatic biology is currently experiencing a surge in interest. This review describes current knowledge related to molecular control of intestinal lymphatic vessel structure and function. We discuss regulation of chylomicron entry into lymphatic vessels by vascular endothelial growth factors (VEGFs), hormones, transcription factors and the specific signaling pathways involved. The information covered supports the emerging role of intestinal lymphatics in etiology of the metabolic syndrome and their potential as a therapeutic target.
Collapse
Affiliation(s)
- Vincenza Cifarelli
- Department of Medicine, Center for Human Nutrition, Washington University School of Medicine, St. Louis, Missouri.
| | - Anne Eichmann
- Cardiovascular Research Center and Department of Cellular and Molecular Physiology, Yale University School of Medicine, New Haven, Connecticut; INSERM U970, Paris Cardiovascular Research Center, Paris, France
| |
Collapse
|
27
|
Cifarelli V, Eichmann A. The Intestinal Lymphatic System: Functions and Metabolic Implications. Cell Mol Gastroenterol Hepatol 2018; 7:503-513. [PMID: 30557701 PMCID: PMC6396433 DOI: 10.1016/j.jcmgh.2018.12.002] [Citation(s) in RCA: 81] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/29/2018] [Revised: 12/07/2018] [Accepted: 12/07/2018] [Indexed: 12/26/2022]
Abstract
The lymphatic system of the gut plays important roles in the transport of dietary lipids, as well as in immunosurveillance and removal of interstitial fluid. Historically, despite its crucial functions in intestinal homeostasis, the lymphatic system has been poorly studied. In the last 2 decades, identification of specific molecular mediators of lymphatic endothelial cells (LECs) growth together with novel genetic approaches and intravital imaging techniques, have advanced our understanding of the mechanisms regulating intestinal lymphatic physiology in health and disease. As its metabolic implications are gaining recognition, intestinal lymphatic biology is currently experiencing a surge in interest. This review describes current knowledge related to molecular control of intestinal lymphatic vessel structure and function. We discuss regulation of chylomicron entry into lymphatic vessels by vascular endothelial growth factors (VEGFs), hormones, transcription factors and the specific signaling pathways involved. The information covered supports the emerging role of intestinal lymphatics in etiology of the metabolic syndrome and their potential as a therapeutic target.
Collapse
Affiliation(s)
- Vincenza Cifarelli
- Department of Medicine, Center for Human Nutrition, Washington University School of Medicine, St. Louis, Missouri,Correspondence Address correspondence to: Vincenza Cifarelli, PhD, Department of Medicine, Center for Human Nutrition, Washington University School of Medicine, Campus box 8031, 660 Euclid Avenue, St. Louis, Missouri 63110. fax: (314) 362-8230.
| | - Anne Eichmann
- Cardiovascular Research Center and Department of Cellular and Molecular Physiology, Yale University School of Medicine, New Haven, Connecticut,INSERM U970, Paris Cardiovascular Research Center, Paris, France
| |
Collapse
|
28
|
Samovski D, Dhule P, Pietka T, Jacome-Sosa M, Penrose E, Son NH, Flynn CR, Shoghi KI, Hyrc KL, Goldberg IJ, Gamazon ER, Abumrad NA. Regulation of Insulin Receptor Pathway and Glucose Metabolism by CD36 Signaling. Diabetes 2018; 67:1272-1284. [PMID: 29748289 PMCID: PMC6014550 DOI: 10.2337/db17-1226] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/10/2017] [Accepted: 04/26/2018] [Indexed: 12/19/2022]
Abstract
During reduced energy intake, skeletal muscle maintains homeostasis by rapidly suppressing insulin-stimulated glucose utilization. Loss of this adaptation is observed with deficiency of the fatty acid transporter CD36. A similar loss is also characteristic of the insulin-resistant state where CD36 is dysfunctional. To elucidate what links CD36 to muscle glucose utilization, we examined whether CD36 signaling might influence insulin action. First, we show that CD36 deletion specific to skeletal muscle reduces expression of insulin signaling and glucose metabolism genes. It decreases muscle ceramides but impairs glucose disposal during a meal. Second, depletion of CD36 suppresses insulin signaling in primary-derived human myotubes, and the mechanism is shown to involve functional CD36 interaction with the insulin receptor (IR). CD36 promotes tyrosine phosphorylation of IR by the Fyn kinase and enhances IR recruitment of P85 and downstream signaling. Third, pretreatment for 15 min with saturated fatty acids suppresses CD36-Fyn enhancement of IR phosphorylation, whereas unsaturated fatty acids are neutral or stimulatory. These findings define mechanisms important for muscle glucose metabolism and optimal insulin responsiveness. Potential human relevance is suggested by genome-wide analysis and RNA sequencing data that associate genetically determined low muscle CD36 expression to incidence of type 2 diabetes.
Collapse
Affiliation(s)
- Dmitri Samovski
- Departments of Medicine and Cell Biology, Washington University in St. Louis, St. Louis, MO
| | - Pallavi Dhule
- Departments of Medicine and Cell Biology, Washington University in St. Louis, St. Louis, MO
| | - Terri Pietka
- Departments of Medicine and Cell Biology, Washington University in St. Louis, St. Louis, MO
| | - Miriam Jacome-Sosa
- Departments of Medicine and Cell Biology, Washington University in St. Louis, St. Louis, MO
| | - Eric Penrose
- Departments of Medicine and Cell Biology, Washington University in St. Louis, St. Louis, MO
| | - Ni-Huiping Son
- Division of Endocrinology, Diabetes and Metabolism, New York University School of Medicine, New York, NY
| | | | - Kooresh I Shoghi
- Department of Radiology, Washington University in St. Louis, St. Louis, MO
| | - Krzysztof L Hyrc
- Alafi Neuroimaging Laboratory, Hope Center for Neurological Disorders, Washington University in St. Louis, St. Louis, MO
| | - Ira J Goldberg
- Division of Endocrinology, Diabetes and Metabolism, New York University School of Medicine, New York, NY
| | - Eric R Gamazon
- Division of Genetic Medicine, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN
- Clare Hall, University of Cambridge, Cambridge, U.K
| | - Nada A Abumrad
- Departments of Medicine and Cell Biology, Washington University in St. Louis, St. Louis, MO
| |
Collapse
|
29
|
Shibao CA, Celedonio JE, Tamboli R, Sidani R, Love-Gregory L, Pietka T, Xiong Y, Wei Y, Abumrad NN, Abumrad NA, Flynn CR. CD36 Modulates Fasting and Preabsorptive Hormone and Bile Acid Levels. J Clin Endocrinol Metab 2018; 103:1856-1866. [PMID: 29546316 PMCID: PMC6446573 DOI: 10.1210/jc.2017-01982] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/06/2017] [Accepted: 03/07/2018] [Indexed: 01/16/2023]
Abstract
CONTEXT Abnormal fatty acid (FA) metabolism contributes to diabetes and cardiovascular disease. The FA receptor CD36 has been linked to risk of metabolic syndrome. In rodents CD36 regulates various aspects of fat metabolism, but whether it has similar actions in humans is unknown. We examined the impact of a coding single-nucleotide polymorphism in CD36 on postprandial hormone and bile acid (BA) responses. OBJECTIVE To examine whether the minor allele (G) of coding CD36 variant rs3211938 (G/T), which reduces CD36 level by ∼50%, influences hormonal responses to a high-fat meal (HFM). DESIGN Obese African American (AA) women carriers of the G allele of rs3211938 (G/T) and weight-matched noncarriers (T/T) were studied before and after a HFM. SETTING Two-center study. PARTICIPANTS Obese AA women. INTERVENTION HFM. MAIN OUTCOME MEASURES Early preabsorptive responses (10 minutes) and extended excursions in plasma hormones [C-peptide, insulin, incretins, ghrelin fibroblast growth factor (FGF)19, FGF21], BAs, and serum lipoproteins (chylomicrons, very-low-density lipoprotein) were determined. RESULTS At fasting, G-allele carriers had significantly reduced cholesterol and glycodeoxycholic acid and consistent but nonsignificant reductions of serum lipoproteins. Levels of GLP-1 and pancreatic polypeptide (PP) were reduced 60% to 70% and those of total BAs were 1.8-fold higher. After the meal, G-allele carriers displayed attenuated early (-10 to 10 minute) responses in insulin, C-peptide, GLP-1, gastric inhibitory peptide, and PP. BAs exhibited divergent trends in G allele carriers vs noncarriers concomitant with differential FGF19 responses. CONCLUSIONS CD36 plays an important role in the preabsorptive hormone and BA responses that coordinate brain and gut regulation of energy metabolism.
Collapse
Affiliation(s)
- Cyndya A Shibao
- Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee
- Correspondence and Reprint Requests: Charles Robb Flynn, PhD, Department of Surgery, MRBIV Room 8465A, 2213 Garland Avenue, Vanderbilt University Medical Center, Nashville, Tennessee 37232. E-mail: ; or Cyndya Shibao, MD, Department of Medicine, Division of Medicine, 562 Preston Research Building, Vanderbilt University Medical Center, Nashville, Tennessee 37232. E-mail:
| | - Jorge E Celedonio
- Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Robyn Tamboli
- Department of Surgery, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Reem Sidani
- Department of Surgery, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Latisha Love-Gregory
- Department of Medicine, Center for Human Nutrition, Washington University School of Medicine, St. Louis, Missouri
| | - Terri Pietka
- Department of Medicine, Center for Human Nutrition, Washington University School of Medicine, St. Louis, Missouri
| | - Yanhua Xiong
- Department of Surgery, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Yan Wei
- Department of Surgery, Vanderbilt University Medical Center, Nashville, Tennessee
- Department of General Surgery, Beijing Shijitan Hospital, Capital Medical University, Beijing, China
| | - Naji N Abumrad
- Department of Surgery, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Nada A Abumrad
- Department of Medicine, Center for Human Nutrition, Washington University School of Medicine, St. Louis, Missouri
| | - Charles Robb Flynn
- Department of Surgery, Vanderbilt University Medical Center, Nashville, Tennessee
- Correspondence and Reprint Requests: Charles Robb Flynn, PhD, Department of Surgery, MRBIV Room 8465A, 2213 Garland Avenue, Vanderbilt University Medical Center, Nashville, Tennessee 37232. E-mail: ; or Cyndya Shibao, MD, Department of Medicine, Division of Medicine, 562 Preston Research Building, Vanderbilt University Medical Center, Nashville, Tennessee 37232. E-mail:
| |
Collapse
|
30
|
Abstract
Several proteins have been implicated in fatty acid (FA) transport by enterocytes including the scavenger receptor CD36 (SR-B2), the scavenger receptor B1 (SR-B1) a member of the CD36 family and the FA transport protein 4 (FATP4). Here, we review the regulation of enterocyte FA uptake and its function in lipid absorption including prechylomicron formation, assembly and transport. Emphasis is given to CD36, which is abundantly expressed along the digestive tract of rodents and humans and has been the most studied. We also address the pleiotropic functions of CD36 that go beyond lipid absorption and metabolism to include recent evidence of its impact on intestinal homeostasis and barrier maintenance. Areas of progress involving contribution of membrane phospholipid remodeling and of cytosolic FA-binding proteins, FABP1 and FABP2 to fat absorption will be covered. © 2018 American Physiological Society. Compr Physiol 8:493-507, 2018.
Collapse
Affiliation(s)
- Vincenza Cifarelli
- Department of Internal Medicine, Center for Human Nutrition, Washington University School of Medicine, St Louis, Missouri, USA
| | - Nada A. Abumrad
- Department of Internal Medicine, Center for Human Nutrition, Washington University School of Medicine, St Louis, Missouri, USA
| |
Collapse
|
31
|
Abstract
PURPOSE OF REVIEW Postprandial lipemia (PPL), the prolonged increase in plasma triglyceride-rich lipoproteins following food consumption, is an independent risk factor for cardiovascular disease. Genetic variation, environment and the interplay between these direct an individual's postprandial lipid response. From such interplay, inducible and reversible epigenetic changes arise. Increasing evidence suggests epigenetic variation contributes to postprandial response in lipids and risk. RECENT FINDINGS Diet and exercise are central agents affecting postprandial lipemia - triglyceride, but heterogeneity of the findings warrant more and larger studies. Several epigenetic loci identified from a human intervention study account for a substantial proportion of PPL phenotype variation, but the burden to conduct an intervention study of postprandial responses likely limits translation to personalized nutrition. SUMMARY The impact of both DNA methylation patterns and environmental factors such as diet, exercise, sleep and medication on PPL is multifaceted. Discovery of interactions that modify the association between CpG (oligodeoxydinucleotide) methylation and postprandial phenotypes is unfolding.
Collapse
Affiliation(s)
| | - Jose M Ordovas
- Jean Mayer-USDA Human Nutrition Research Center on Aging at Tufts University, Boston, Massachusetts, USA
- IMDEA Food Institute, CEI UAM + CSIC
- Centro Nacional de Investigaciones Cardiovasculares (CNIC), Madrid, Spain
| | | |
Collapse
|
32
|
Abstract
Understanding the mechanisms governing food intake is a public health issue given the dramatic rise of obesity over the world. The overconsumption of tasty energy-dense foods rich in lipids is considered to be one of the nutritional causes of this epidemic. Over the last decade, the identification of fatty acid receptors in strategic places in the body (i.e. oro-intestinal tract and brain) has provided a major progress in the deciphering of regulatory networks involved in the control of dietary intake. Among these lipid sensors, CD36/SR-B2 appears to play a significant role since this membrane protein, known to bind long-chain fatty acid with a high affinity, was specifically found both in enterocytes and in a subset of taste bud cells and entero-endocrine cells. After a short overview on CD36/SR-B2 structure, function and regulation, this mini-review proposes to analyze the key findings about the role of CD36/SR-B2 along of the tongue-gut axis in relation to appetite control. In addition, we discuss whether obesogenic diets might impair lipid sensing mediated by CD36/SR-B2 along this axis.
Collapse
Affiliation(s)
- Isabelle Niot
- Physiologie de la Nutrition et Toxicologie (NUTox), LCN UMR 1231, INSERM/AgroSupDijon/Univ. Bourgogne Franche-Comté, F-21000, Dijon, France.
| | - Philippe Besnard
- Physiologie de la Nutrition et Toxicologie (NUTox), LCN UMR 1231, INSERM/AgroSupDijon/Univ. Bourgogne Franche-Comté, F-21000, Dijon, France.
| |
Collapse
|