1
|
Zhang L, Shi Y, Liang B, Li X. An overview of the cholesterol metabolism and its proinflammatory role in the development of MASLD. Hepatol Commun 2024; 8:e0434. [PMID: 38696365 PMCID: PMC11068152 DOI: 10.1097/hc9.0000000000000434] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/01/2024] [Accepted: 03/05/2024] [Indexed: 05/04/2024] Open
Abstract
Cholesterol is an essential lipid molecule in mammalian cells. It is not only involved in the formation of cell membranes but also serves as a raw material for the synthesis of bile acids, vitamin D, and steroid hormones. Additionally, it acts as a covalent modifier of proteins and plays a crucial role in numerous life processes. Generally, the metabolic processes of cholesterol absorption, synthesis, conversion, and efflux are strictly regulated. Excessive accumulation of cholesterol in the body is a risk factor for metabolic diseases such as cardiovascular disease, type 2 diabetes, and metabolic dysfunction-associated steatotic liver disease (MASLD). In this review, we first provide an overview of the discovery of cholesterol and the fundamental process of cholesterol metabolism. We then summarize the relationship between dietary cholesterol intake and the risk of developing MASLD, and also the animal models of MASLD specifically established with a cholesterol-containing diet. In the end, the role of cholesterol-induced inflammation in the initiation and development of MASLD is discussed.
Collapse
Affiliation(s)
- Linqiang Zhang
- Institute of Life Sciences, School of Basic Medicine, Chongqing Medical University, Chongqing, China
| | - Yongqiong Shi
- Institute of Life Sciences, School of Basic Medicine, Chongqing Medical University, Chongqing, China
| | - Bin Liang
- Center for Life Sciences, Yunnan Key Laboratory of Cell Metabolism and Diseases, School of Life Sciences, Yunnan University, Kunming, Yunnan, China
| | - Xi Li
- Institute of Life Sciences, School of Basic Medicine, Chongqing Medical University, Chongqing, China
| |
Collapse
|
2
|
Xiao J, Dong LW, Liu S, Meng FH, Xie C, Lu XY, Zhang WJ, Luo J, Song BL. Bile acids-mediated intracellular cholesterol transport promotes intestinal cholesterol absorption and NPC1L1 recycling. Nat Commun 2023; 14:6469. [PMID: 37833289 PMCID: PMC10575946 DOI: 10.1038/s41467-023-42179-5] [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: 11/07/2022] [Accepted: 10/03/2023] [Indexed: 10/15/2023] Open
Abstract
Niemann-Pick C1-like 1 (NPC1L1) is essential for intestinal cholesterol absorption. Together with the cholesterol-rich and Flotillin-positive membrane microdomain, NPC1L1 is internalized via clathrin-mediated endocytosis and transported to endocytic recycling compartment (ERC). When ERC cholesterol level decreases, NPC1L1 interacts with LIMA1 and moves back to plasma membrane. However, how cholesterol leaves ERC is unknown. Here, we find that, in male mice, intracellular bile acids facilitate cholesterol transport to other organelles, such as endoplasmic reticulum, in a non-micellar fashion. When cholesterol level in ERC is decreased by bile acids, the NPC1L1 carboxyl terminus that previously interacts with the cholesterol-rich membranes via the A1272LAL residues dissociates from membrane, exposing the Q1277KR motif for LIMA1 recruitment. Then NPC1L1 moves back to plasma membrane. This study demonstrates an intracellular cholesterol transport function of bile acids and explains how the substantial amount of cholesterol in NPC1L1-positive compartments is unloaded in enterocytes during cholesterol absorption.
Collapse
Affiliation(s)
- Jian Xiao
- College of Life Sciences, Taikang Center for Life and Medical Sciences, Taikang Medical School, Hubei Key Laboratory of Cell Homeostasis, Wuhan University, Wuhan, China
| | - Le-Wei Dong
- College of Life Sciences, Taikang Center for Life and Medical Sciences, Taikang Medical School, Hubei Key Laboratory of Cell Homeostasis, Wuhan University, Wuhan, China
| | - Shuai Liu
- College of Life Sciences, Taikang Center for Life and Medical Sciences, Taikang Medical School, Hubei Key Laboratory of Cell Homeostasis, Wuhan University, Wuhan, China
- Heart Center, First Affiliated Hospital of Xinjiang Medical University, Urumqi, 830054, Xinjiang, China
| | - Fan-Hua Meng
- College of Life Sciences, Taikang Center for Life and Medical Sciences, Taikang Medical School, Hubei Key Laboratory of Cell Homeostasis, Wuhan University, Wuhan, China
- Heart Center, First Affiliated Hospital of Xinjiang Medical University, Urumqi, 830054, Xinjiang, China
- Affiliated Hospital of Jining Medical University, Jining, 272007, Shandong, China
| | - Chang Xie
- College of Life Sciences, Taikang Center for Life and Medical Sciences, Taikang Medical School, Hubei Key Laboratory of Cell Homeostasis, Wuhan University, Wuhan, China
| | - Xiao-Yi Lu
- College of Life Sciences, Taikang Center for Life and Medical Sciences, Taikang Medical School, Hubei Key Laboratory of Cell Homeostasis, Wuhan University, Wuhan, China
| | - Weiping J Zhang
- Department of Pathophysiology, Naval Medical University, Shanghai, China
| | - Jie Luo
- College of Life Sciences, Taikang Center for Life and Medical Sciences, Taikang Medical School, Hubei Key Laboratory of Cell Homeostasis, Wuhan University, Wuhan, China
| | - Bao-Liang Song
- College of Life Sciences, Taikang Center for Life and Medical Sciences, Taikang Medical School, Hubei Key Laboratory of Cell Homeostasis, Wuhan University, Wuhan, China.
| |
Collapse
|
3
|
Li YP, Adi D, Wang YH, Wang YT, Li XL, Fu ZY, Liu F, Aizezi A, Abuzhalihan J, Gai M, Ma X, Li XM, Xie X, Ma Y. Genetic polymorphism of the Dab2 gene and its association with Type 2 Diabetes Mellitus in the Chinese Uyghur population. PeerJ 2023; 11:e15536. [PMID: 37361044 PMCID: PMC10290452 DOI: 10.7717/peerj.15536] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Accepted: 05/19/2023] [Indexed: 06/28/2023] Open
Abstract
Objective The human Disabled-2 (Dab2) protein is an endocytic adaptor protein, which plays an essential role in endocytosis of transmembrane cargo, including low-density lipoprotein cholesterol (LDL-C). As a candidate gene for dyslipidemia, Dab2 is also involved in the development of type 2 diabetes mellitus(T2DM). The aim of this study was to investigate the effects of genetic variants of the Dab2 gene on the related risk of T2DM in the Uygur and Han populations of Xinjiang, China. Methods A total of 2,157 age- and sex-matched individuals (528 T2DM patients and 1,629 controls) were included in this case-control study. Four high frequency SNPs (rs1050903, rs2255280, rs2855512 and rs11959928) of the Dab2 gene were genotyped using an improved multiplex ligation detection reaction (iMLDR) genotyping assay, and the forecast value of the SNP for T2DM was assessed by statistical analysis of clinical data profiles and gene frequencies. Results We found that in the Uygur population studied, for both rs2255280 and rs2855512, there were significant differences in the distribution of genotypes (AA/CA/CC), and the recessive model (CC vs. CA + AA) between T2DM patients and the controls (P < 0.05). After adjusting for confounders, the recessive model (CC vs. CA + AA) of both rs2255280 and rs2855512 remained significantly associated with T2DM in this population (rs2255280: OR = 5.303, 95% CI [1.236 to -22.755], P = 0.025; rs2855512: OR = 4.892, 95% CI [1.136 to -21.013], P = 0.033). The genotypes (AA/CA/CC) and recessive models (CC vs. CA + AA) of rs2855512 and rs2255280 were also associated with the plasma glucose and HbA1c levels (all P < 0.05) in this population. There were no significant differences in genotypes, all genetic models, or allele frequencies between the T2DM and control group in the Han population group (all P > 0.05). Conclusions The present study suggests that the variation of the Dab2 gene loci rs2255280 and rs2855512 is related to the incidence of T2DM in the Uygur population, but not in the Han population. In this study, these variations in Dab2 were an independent predictor for T2DM in the Uygur population of Xinjiang, China.
Collapse
Affiliation(s)
- Yan-Peng Li
- State Key Laboratory of Pathogenesis, Prevention and Treatment of High Incidence Diseases in Central Asia, Department of Cardiology, First Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang, China
- Xinjiang Key Laboratory of Cardiovascular Disease, Clinical Medical Research Institute, First Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang, China
| | - Dilare Adi
- State Key Laboratory of Pathogenesis, Prevention and Treatment of High Incidence Diseases in Central Asia, Department of Cardiology, First Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang, China
- Xinjiang Key Laboratory of Cardiovascular Disease, Clinical Medical Research Institute, First Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang, China
| | - Ying-Hong Wang
- Center of Health Management, First Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang, China
| | - Yong-Tao Wang
- State Key Laboratory of Pathogenesis, Prevention and Treatment of High Incidence Diseases in Central Asia, Department of Cardiology, First Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang, China
- Xinjiang Key Laboratory of Cardiovascular Disease, Clinical Medical Research Institute, First Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang, China
| | - Xiao-Lei Li
- State Key Laboratory of Pathogenesis, Prevention and Treatment of High Incidence Diseases in Central Asia, Department of Cardiology, First Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang, China
- Xinjiang Key Laboratory of Cardiovascular Disease, Clinical Medical Research Institute, First Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang, China
| | - Zhen-Yan Fu
- State Key Laboratory of Pathogenesis, Prevention and Treatment of High Incidence Diseases in Central Asia, Department of Cardiology, First Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang, China
- Xinjiang Key Laboratory of Cardiovascular Disease, Clinical Medical Research Institute, First Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang, China
| | - Fen Liu
- State Key Laboratory of Pathogenesis, Prevention and Treatment of High Incidence Diseases in Central Asia, Department of Cardiology, First Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang, China
- Xinjiang Key Laboratory of Cardiovascular Disease, Clinical Medical Research Institute, First Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang, China
| | - Aibibanmu Aizezi
- State Key Laboratory of Pathogenesis, Prevention and Treatment of High Incidence Diseases in Central Asia, Department of Cardiology, First Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang, China
- Xinjiang Key Laboratory of Cardiovascular Disease, Clinical Medical Research Institute, First Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang, China
| | - Jialin Abuzhalihan
- State Key Laboratory of Pathogenesis, Prevention and Treatment of High Incidence Diseases in Central Asia, Department of Cardiology, First Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang, China
- Xinjiang Key Laboratory of Cardiovascular Disease, Clinical Medical Research Institute, First Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang, China
| | - Mintao Gai
- State Key Laboratory of Pathogenesis, Prevention and Treatment of High Incidence Diseases in Central Asia, Department of Cardiology, First Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang, China
- Xinjiang Key Laboratory of Cardiovascular Disease, Clinical Medical Research Institute, First Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang, China
| | - Xiang Ma
- State Key Laboratory of Pathogenesis, Prevention and Treatment of High Incidence Diseases in Central Asia, Department of Cardiology, First Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang, China
- Xinjiang Key Laboratory of Cardiovascular Disease, Clinical Medical Research Institute, First Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang, China
| | - Xiao-mei Li
- State Key Laboratory of Pathogenesis, Prevention and Treatment of High Incidence Diseases in Central Asia, Department of Cardiology, First Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang, China
- Xinjiang Key Laboratory of Cardiovascular Disease, Clinical Medical Research Institute, First Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang, China
| | - Xiang Xie
- State Key Laboratory of Pathogenesis, Prevention and Treatment of High Incidence Diseases in Central Asia, Department of Cardiology, First Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang, China
- Xinjiang Key Laboratory of Cardiovascular Disease, Clinical Medical Research Institute, First Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang, China
| | - YiTong Ma
- State Key Laboratory of Pathogenesis, Prevention and Treatment of High Incidence Diseases in Central Asia, Department of Cardiology, First Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang, China
- Xinjiang Key Laboratory of Cardiovascular Disease, Clinical Medical Research Institute, First Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang, China
| |
Collapse
|
4
|
Liu Y, Wang K, Li G, Chen Z. Differential expression pattern, bioinformatics analysis, and validation of circRNA and mRNA in patients with arteriosclerosis. Front Cardiovasc Med 2022; 9:942797. [PMID: 36176992 PMCID: PMC9513155 DOI: 10.3389/fcvm.2022.942797] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Accepted: 08/04/2022] [Indexed: 11/13/2022] Open
Abstract
BackgroundLower limb arteriosclerosis obliterans (ASO) is the formation of atherosclerotic plaques in lower limb arteries, leading to vascular stenosis and occlusion, and is a major factor leading to lower limb amputation. The ASO seriously endangers the physical and mental health of patients. As living standards improve, the disease tends to occur in younger patients, and the incidence keeps increasing year by year. The circular RNAs (circRNAs) have been found to be tissue-specific, and they play an important role in a variety of diseases, but there are few studies on the pathogenic role and expression of circRNAs in ASOs.MethodThree diseased arteries from patients with ASO and three healthy arteries from healthy donors were collected for second-generation sequencing, and the pathogenic pathways and possible pathogenic circRNAs related to ASO were screened through bioinformatics analysis. PCR and agarose gel electrophoresis were used to validate the sequencing results. The expression of circRNA-0008706 in human arterial smooth muscle cells (HASMCs) was knocked down using siRNA technology to explore its function.ResultWe identified 480 differentially expressed (DE) circRNAs and 2,997 DEmRNAs. Functional analysis revealed that epithelial-to-mesenchymal transition (EMT), lipid transport, regulation of extracellular matrix disassembly, regulation of cardiac muscle cell proliferation, branched-chain amino acid biosynthetic process, and positive regulation of cell growth and migration were enriched. Based on our previous microRNA array results, we constructed an ASO disease-specific competing endogenous (ceRNA) network. After validation, circRNA-0008706 was selected for functional analysis. Knockdown of circRNA-0008706 significantly suppressed the proliferation and migration phenotype of HASMCs and decreased the BCAT1 expression, which may be due to the specific binding of circRNA-0008706 to microRNA-125b-5p.ConclusionThis study is the first to compare the circRNA and mRNA expression profiles of ASOs and healthy arterial specimens and to construct a disease-specific ceRNA network for ASOs. This study may provide a new therapeutic target for ASO.
Collapse
Affiliation(s)
- Yunyun Liu
- Department of Gynecologic Oncology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
- Department of Gynecology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Kangjie Wang
- Division of Vascular Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Guanhua Li
- Division of Cardiovascular Surgery, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
- *Correspondence: Guanhua Li
| | - Zhibo Chen
- Division of Cardiovascular Surgery, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
- Zhibo Chen
| |
Collapse
|
5
|
Deng L, Vrieling F, Stienstra R, Hooiveld GJ, Feitsma AL, Kersten S. Macrophages take up VLDL-sized emulsion particles through caveolae-mediated endocytosis and excrete part of the internalized triglycerides as fatty acids. PLoS Biol 2022; 20:e3001516. [PMID: 36026438 PMCID: PMC9455861 DOI: 10.1371/journal.pbio.3001516] [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: 12/03/2021] [Revised: 09/08/2022] [Accepted: 07/09/2022] [Indexed: 11/26/2022] Open
Abstract
Triglycerides are carried in the bloodstream as part of very low-density lipoproteins (VLDLs) and chylomicrons, which represent the triglyceride-rich lipoproteins. Triglyceride-rich lipoproteins and their remnants contribute to atherosclerosis, possibly by carrying remnant cholesterol and/or by exerting a proinflammatory effect on macrophages. Nevertheless, little is known about how macrophages process triglyceride-rich lipoproteins. Here, using VLDL-sized triglyceride-rich emulsion particles, we aimed to study the mechanism by which VLDL triglycerides are taken up, processed, and stored in macrophages. Our results show that macrophage uptake of VLDL-sized emulsion particles is dependent on lipoprotein lipase (LPL) and requires the lipoprotein-binding C-terminal domain but not the catalytic N-terminal domain of LPL. Subsequent internalization of VLDL-sized emulsion particles by macrophages is carried out by caveolae-mediated endocytosis, followed by triglyceride hydrolysis catalyzed by lysosomal acid lipase. It is shown that STARD3 is required for the transfer of lysosomal fatty acids to the ER for subsequent storage as triglycerides, while NPC1 likely is involved in promoting the extracellular efflux of fatty acids from lysosomes. Our data provide novel insights into how macrophages process VLDL triglycerides and suggest that macrophages have the remarkable capacity to excrete part of the internalized triglycerides as fatty acids. How do macrophages take up and process very low density lipoprotein (VLDL) particles? This study reveals that endocytic uptake of VLDLs depends on lipoprotein lipase and caveolae; internalized VLDLs are then processed by lysosomes, and the lipids are hydrolyzed and translocated to the ER for storage as triglycerides.
Collapse
|
6
|
Kong Z, Xu M, Zhang Y, Huang W, Zhao X, Luo J, Song BL. The cation-π interaction in cysteine-rich domain of Smoothened is critical for its cholesterylation and function. Acta Biochim Biophys Sin (Shanghai) 2022; 54:1171-1179. [PMID: 35904215 PMCID: PMC9828284 DOI: 10.3724/abbs.2022090] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2022] [Accepted: 05/26/2022] [Indexed: 11/25/2022] Open
Abstract
The Hedgehog (Hh) signaling pathway is critical for embryonic development and tissue renewal. The G protein-coupled receptor (GPCR)-like protein Smoothened (SMO) is the central signal transducer in the Hh pathway. Cholesterol binds and then covalently links to the D95 residue of cysteine-rich domain (CRD) of human SMO. The cholesterylation of CRD is critical for SMO activation. SMO cholesterylation is a Ca 2+-boosted autoreaction that requires the formation of an ester bond between the side chains of D95 and Y130 as an intermediate. It is unknown whether other residues of SMO are involved in the esterification between D95 and cholesterol. In this study, we find that the SMO-CRD(27-192) can undergo cholesterylation. In addition to D95 and Y130, the residues critical for cholesterol modification include Y85, T88, T90, W109, W119, K133, E160 and F166. T88, W109, W119 and F166 also seem to be involved in protein folding. Notably, we find that Y85 and K133 form a cation-π interaction whose disruption abolishes cholesterylation and ciliary localization of SMO. This study highlights the mechanism and function of cholesterol modification of SMO.
Collapse
Affiliation(s)
- Zekai Kong
- />Hubei Key Laboratory of Cell HomeostasisCollege of Life SciencesTaiKang Center for Life and Medical SciencesTaiKang Medical SchoolWuhan UniversityWuhan430071China
| | - Min Xu
- />Hubei Key Laboratory of Cell HomeostasisCollege of Life SciencesTaiKang Center for Life and Medical SciencesTaiKang Medical SchoolWuhan UniversityWuhan430071China
| | - Yanqing Zhang
- />Hubei Key Laboratory of Cell HomeostasisCollege of Life SciencesTaiKang Center for Life and Medical SciencesTaiKang Medical SchoolWuhan UniversityWuhan430071China
| | - Wenda Huang
- />Hubei Key Laboratory of Cell HomeostasisCollege of Life SciencesTaiKang Center for Life and Medical SciencesTaiKang Medical SchoolWuhan UniversityWuhan430071China
| | - Xiaolu Zhao
- />Hubei Key Laboratory of Cell HomeostasisCollege of Life SciencesTaiKang Center for Life and Medical SciencesTaiKang Medical SchoolWuhan UniversityWuhan430071China
| | - Jie Luo
- />Hubei Key Laboratory of Cell HomeostasisCollege of Life SciencesTaiKang Center for Life and Medical SciencesTaiKang Medical SchoolWuhan UniversityWuhan430071China
| | - Bao-Liang Song
- />Hubei Key Laboratory of Cell HomeostasisCollege of Life SciencesTaiKang Center for Life and Medical SciencesTaiKang Medical SchoolWuhan UniversityWuhan430071China
| |
Collapse
|
7
|
Meng H, Li L, Ruan J, Chen Y, Yan Z, Liu J, Li X, Mao C, Yang P, Jiang W. Association of Low Expression of NUMB in Peripheral Blood with Acute Myocardial Infarction. Cardiol Res Pract 2022; 2022:1-7. [PMID: 35529060 PMCID: PMC9072008 DOI: 10.1155/2022/7981637] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Accepted: 04/12/2022] [Indexed: 12/29/2022] Open
Abstract
Objective Our study's goal was to find out acute myocardial infarction (AMI) patients' NUMB gene expression patterns and to evaluate its role as a diagnostic marker for AMI detection. Methods Peripheral blood was drawn from 124 individuals who had an AMI and 115 patients who had stable coronary artery disease (SCAD). The real-time quantitative polymerase chain reaction was used to measure the mRNA expression level of the NUMB gene in peripheral blood. Results The AMI group's NUMB gene expression was 0.906 (0.181–0.954), whereas the SCAD group's expression was 1.024 (0.207–1.127). However, the AMI group had 0.885 times lower NUMB mRNA expression than the SCAD group (P < 0.05). Conclusion Multivariate logistic regression evaluation found that lower NUMB expression was correlated with an increased risk of coronary artery disease. However, age and fasting plasma glucose levels were not associated with decreased NUMB expression.
Collapse
|
8
|
Sun P, Zhao L, Zhang N, Zhou J, Zhang L, Wu W, Ji B, Zhou F. Bioactivity of Dietary Polyphenols: The Role in LDL-C Lowering. Foods 2021; 10:foods10112666. [PMID: 34828946 PMCID: PMC8617782 DOI: 10.3390/foods10112666] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [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: 09/05/2021] [Revised: 10/27/2021] [Accepted: 10/31/2021] [Indexed: 12/18/2022] Open
Abstract
Cardiovascular diseases are the leading causes of the death around the world. An elevation of the low-density lipoprotein cholesterol (LDL-C) level is one of the most important risk factors for cardiovascular diseases. To achieve optimal plasma LDL-C levels, clinal therapies were investigated which targeted different metabolism pathways. However, some therapies also caused various adverse effects. Thus, there is a need for new treatment options and/or combination therapies to inhibit the LDL-C level. Dietary polyphenols have received much attention in the prevention of cardiovascular diseases due to their potential LDL-C lowering effects. However, the effectiveness and potential mechanisms of polyphenols in lowering LDL-C is not comprehensively summarized. This review focused on dietary polyphenols that could reduce LDL-C and their mechanisms of action. This review also discussed the limitations and suggestions regarding previous studies.
Collapse
Affiliation(s)
- Peng Sun
- Beijing Key Laboratory of Functional Food from Plant Resources, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China; (P.S.); (N.Z.); (J.Z.); (L.Z.); (B.J.)
| | - Liang Zhao
- Beijing Advance Innovation Center for Food Nutrition and Human Health, Beijing Engineering and Technology Research Center of Food Additives, Beijing Technology and Business University, Beijing 100048, China;
| | - Nanhai Zhang
- Beijing Key Laboratory of Functional Food from Plant Resources, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China; (P.S.); (N.Z.); (J.Z.); (L.Z.); (B.J.)
| | - Jingxuan Zhou
- Beijing Key Laboratory of Functional Food from Plant Resources, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China; (P.S.); (N.Z.); (J.Z.); (L.Z.); (B.J.)
| | - Liebing Zhang
- Beijing Key Laboratory of Functional Food from Plant Resources, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China; (P.S.); (N.Z.); (J.Z.); (L.Z.); (B.J.)
| | - Wei Wu
- College of Engineering, China Agricultural University, Beijing 100083, China;
| | - Baoping Ji
- Beijing Key Laboratory of Functional Food from Plant Resources, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China; (P.S.); (N.Z.); (J.Z.); (L.Z.); (B.J.)
| | - Feng Zhou
- Beijing Key Laboratory of Functional Food from Plant Resources, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China; (P.S.); (N.Z.); (J.Z.); (L.Z.); (B.J.)
- Correspondence: ; Tel.: +86-10-6273-7129
| |
Collapse
|
9
|
Qiu ZP, Hu A, Song BL. The 3-beta-hydroxysteroid-Delta(8), Delta(7)-isomerase EBP inhibits cholesterylation of Smoothened. Biochim Biophys Acta Mol Cell Biol Lipids 2021; 1866:159041. [PMID: 34450268 DOI: 10.1016/j.bbalip.2021.159041] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Revised: 08/14/2021] [Accepted: 08/19/2021] [Indexed: 12/21/2022]
Abstract
Hedgehog (Hh) pathway plays a central role in vertebrate embryonic development and carcinogenesis. The G-protein coupled receptor-like protein Smoothened (SMO) is one of the major members in Hh pathway. Covalent modification of cholesterol on the 95th asparagine (D95) of human SMO, which is regulated by Hh and PTCH1, is critical for SMO activation. However, it is not known whether SMO cholesterylation is regulated by other proteins. In this study, we identified Emopamil binding protein (EBP, also known as 3-beta-hydroxysteroid-Delta(8),Delta(7)-isomerase) as a SMO-interacting protein. Overexpression of EBP suppressed SMO cholesterylation and Hh pathway activity, whereas genetic disruption of EBP enhanced SMO cholesterylation and the downstream signaling. EBP-mediated inhibition of SMO cholesterylation was independent of its isomerase activity, but dependent on the C-terminus of EBP that was required for SMO binding. The X-linked dominant chondrodysplasia punctate 2 (CDPX2)-associated EBP mutants inhibited SMO cholesterylation too. Together, this study shows that EBP modulates SMO cholesterylation through direct binding and suggests a possible mechanism of CDPX2 pathogenesis.
Collapse
Affiliation(s)
- Zhi-Ping Qiu
- Hubei Key Laboratory of Cell Homeostasis, College of Life Sciences, Wuhan University, Wuhan, China
| | - Ao Hu
- Hubei Key Laboratory of Cell Homeostasis, College of Life Sciences, Wuhan University, Wuhan, China
| | - Bao-Liang Song
- Hubei Key Laboratory of Cell Homeostasis, College of Life Sciences, Wuhan University, Wuhan, China.
| |
Collapse
|
10
|
Qian C, Qiu W, Zhang J, Shen Z, Liu H, Zhang Y. The long non-coding RNA MEG3 plays critical roles in the pathogenesis of cholesterol gallstone. PeerJ 2021; 9:e10803. [PMID: 33665015 PMCID: PMC7908887 DOI: 10.7717/peerj.10803] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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: 08/24/2020] [Accepted: 12/29/2020] [Indexed: 12/14/2022] Open
Abstract
Background Cholesterol gallstone (CG) is the most common gallstone disease, which is induced by biliary cholesterol supersaturation. The purpose of this study is to investigate the pathogenesis of CG. Methods Sixteen mice were equally and randomly divided into model group and normal control group. The model group was fed with lithogenic diets to induce CG, and then gallbladder bile lipid analysis was performed. After RNA-seq library was constructed, differentially expressed mRNAs (DE-mRNAs) and differentially expressed lncRNAs (DE-lncRNAs) between model group and normal control group were analyzed by DESeq2 package. Using the cluster Profiler package, enrichment analysis for the DE-mRNAs was carried out. Based on Cytoscape software, the protein-protein interaction (PPI) network and competing endogenous RNA (ceRNA) network were built. Using quantitative real-time reverse transcription-PCR (qRT-PCR) analysis, the key RNAs were validated. Results The mouse model of CG was suc cessfully established, and then 181 DE-mRNAs and 33 DE-lncRNAs between model and normal groups were obtained. Moreover, KDM4A was selected as a hub node in the PPI network, and lncRNA MEG3 was considered as a key lncRNA in the regulatory network. Additionally, the miR-107-5p/miR-149-3p/miR-346-3-MEG3 regulatory pairs and MEG3-PABPC4/CEP131/NUMB1 co-expression pairs existed in the regulatory network. The qRT-PCR analysis showed that KDM4A expression was increased, and the expressions of MEG3, PABPC4, CEP131, and NUMB1 were downregulated. Conclusion These RNAs might be related to the pathogenesis of CG.
Collapse
Affiliation(s)
- Changlin Qian
- The Second Department of Biliary Surgery, Eastern Hepatobiliary Surgery Hospital, The Second Military Medical University, Shanghai, China.,Department of General Surgery, South Campus, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Weiqing Qiu
- Department of General Surgery, South Campus, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Jie Zhang
- Department of General Surgery, South Campus, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Zhiyong Shen
- Department of General Surgery, South Campus, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Hua Liu
- Department of General Surgery, South Campus, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Yongjie Zhang
- The Second Department of Biliary Surgery, Eastern Hepatobiliary Surgery Hospital, The Second Military Medical University, Shanghai, China
| |
Collapse
|
11
|
Wang JQ, Lin ZC, Li LL, Zhang SF, Li WH, Liu W, Song BL, Luo J. SUMOylation of the ubiquitin ligase IDOL decreases LDL receptor levels and is reversed by SENP1. J Biol Chem 2020; 296:100032. [PMID: 33154164 PMCID: PMC7948399 DOI: 10.1074/jbc.ra120.015420] [Citation(s) in RCA: 2] [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: 07/28/2020] [Revised: 11/01/2020] [Accepted: 11/05/2020] [Indexed: 11/30/2022] Open
Abstract
Inducible degrader of the low-density lipoprotein receptor (IDOL) is an E3 ubiquitin ligase mediating degradation of low-density lipoprotein (LDL) receptor (LDLR). IDOL also controls its own stability through autoubiquitination, primarily at lysine 293. Whether IDOL may undergo other forms of posttranslational modification is unknown. In this study, we show that IDOL can be modified by small ubiquitin-like modifier 1 at the K293 residue at least. The SUMOylation of IDOL counteracts its ubiquitination and augments IDOL protein levels. SUMOylation and the associated increase of IDOL protein are effectively reversed by SUMO-specific peptidase 1 (SENP1) in an activity-dependent manner. We further demonstrate that SENP1 affects LDLR protein levels by modulating IDOL. Overexpression of SENP1 increases LDLR protein levels and enhances LDL uptake in cultured cells. On the contrary, loss of SENP1 lowers LDLR levels in an IDOL-dependent manner and reduces LDL endocytosis. Collectively, our results reveal SUMOylation as a new regulatory posttranslational modification of IDOL and suggest that SENP1 positively regulates the LDLR pathway via deSUMOylation of IDOL and may therefore be exploited for the treatment of cardiovascular disease.
Collapse
Affiliation(s)
- Ju-Qiong Wang
- Hubei Key Laboratory of Cell Homeostasis, College of Life Sciences, Wuhan University, Wuhan, China
| | - Zi-Cun Lin
- Hubei Key Laboratory of Cell Homeostasis, College of Life Sciences, Wuhan University, Wuhan, China
| | - Liang-Liang Li
- Hubei Key Laboratory of Cell Homeostasis, College of Life Sciences, Wuhan University, Wuhan, China
| | - Shao-Fang Zhang
- Hubei Key Laboratory of Cell Homeostasis, College of Life Sciences, Wuhan University, Wuhan, China
| | - Wei-Hui Li
- Hubei Key Laboratory of Cell Homeostasis, College of Life Sciences, Wuhan University, Wuhan, China
| | - Wei Liu
- Hubei Key Laboratory of Cell Homeostasis, College of Life Sciences, Wuhan University, Wuhan, China
| | - Bao-Liang Song
- Hubei Key Laboratory of Cell Homeostasis, College of Life Sciences, Wuhan University, Wuhan, China
| | - Jie Luo
- Hubei Key Laboratory of Cell Homeostasis, College of Life Sciences, Wuhan University, Wuhan, China.
| |
Collapse
|
12
|
Abstract
Disabled-2 (Dab2) is a clathrin and cargo-binding endocytic adaptor protein that plays a role in cellular trafficking of low-density lipoprotein receptor (LDLR). However, little is known about its involvement in coronary artery disease (CAD). Here, we aimed to investigate the association between Dab2 single-nucleotide polymorphisms (SNPs) and CAD in Chinese Han and Uyghur populations.We performed a case-control study in CAD group that consisted of 621 Han and 346 Uygurs, and the age and gender matched control group consisted of 611 Han and 405 Uygurs. The clinicopathological characteristics of these subjects were analyzed. Genotyping of 4 SNPs (rs1050903, rs2855512, rs11959928, and rs2255280) of the Dab2 gene was performed in all subjects with an improved multiplex ligase detection reaction method.The distribution of the genotype, dominant model (AA vs. AC + CC), as well as allele frequencies of both rs2855512 and rs2255280, was significantly different between CAD patients and control subjects in Han population but not in Uyghur population. AA genotype may be a risk factor for CAD. For Han population, statistical significant correlation between dominant model for both SNPs (AA) and CAD was found after multivariate adjustment. After multivariate adjustment in the Han population, we speculate that rs285512 A allele and rs2255280 A allele may be potentially associated with the onset of coronary heart disease. Individuals with the AA genotype had an OR of 1.44 (95% CI: 1.10-1.88, P = .01, rs2855512) and 1.41 (95% CI: 1.08-1.85, P = .01, rs2255280) for CAD compared with individuals with the AC or CC genotype, respectively.Our data indicates that the AA genotype of rs2855512 and rs2255280 in the Dab2 gene may be a genetic marker of CAD risk in Chinese Han population.
Collapse
Affiliation(s)
- Yinghong Wang
- Department of Cardiology
- Center of Health Management, the First Affiliated Hospital of Xinjiang Medical University
| | | | | | | | - Fen Liu
- Xinjiang Key Laboratory of Cardiovascular Disease Research, Urumqi, China
| | | | | | | |
Collapse
|
13
|
Abstract
The transport of materials across membranes is a vital process for all aspects of cellular function, including growth, metabolism, and communication. Protein transporters are the molecular gates that control this movement and serve as key points of regulation for these processes, thus representing an attractive class of therapeutic targets. With more than 400 members, the solute carrier (SLC) membrane transport proteins are the largest family of transporters, yet, they are pharmacologically underexploited relative to other protein families and many of the available chemical tools possess suboptimal selectivity and efficacy. Fortuitously, there is increased interest in elucidating the physiological roles of SLCs as well as growing recognition of their therapeutic potential. This Perspective provides an overview of the SLC superfamily, including their biochemical and functional features, as well as their roles in various human diseases. In particular, we explore efforts and associated challenges toward drugging SLCs, as well as highlight opportunities for future drug discovery.
Collapse
Affiliation(s)
- Wesley Wei Wang
- Department of Chemistry, The Scripps Research Institute, Jupiter, Florida 33458, United States
| | - Leandro Gallo
- Department of Chemistry, The Scripps Research Institute, Jupiter, Florida 33458, United States
| | - Appaso Jadhav
- Department of Chemistry, The Scripps Research Institute, Jupiter, Florida 33458, United States
| | - Richard Hawkins
- Department of Chemistry, The Scripps Research Institute, Jupiter, Florida 33458, United States
| | - Christopher G Parker
- Department of Chemistry, The Scripps Research Institute, Jupiter, Florida 33458, United States.,Department of Chemistry, The Scripps Research Institute, La Jolla, California 92037, United States
| |
Collapse
|
14
|
|
15
|
Chen L, Chen XW, Huang X, Song BL, Wang Y, Wang Y. Regulation of glucose and lipid metabolism in health and disease. Sci China Life Sci 2019; 62:1420-1458. [PMID: 31686320 DOI: 10.1007/s11427-019-1563-3] [Citation(s) in RCA: 116] [Impact Index Per Article: 23.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/16/2019] [Accepted: 10/15/2019] [Indexed: 02/08/2023]
Abstract
Glucose and fatty acids are the major sources of energy for human body. Cholesterol, the most abundant sterol in mammals, is a key component of cell membranes although it does not generate ATP. The metabolisms of glucose, fatty acids and cholesterol are often intertwined and regulated. For example, glucose can be converted to fatty acids and cholesterol through de novo lipid biosynthesis pathways. Excessive lipids are secreted in lipoproteins or stored in lipid droplets. The metabolites of glucose and lipids are dynamically transported intercellularly and intracellularly, and then converted to other molecules in specific compartments. The disorders of glucose and lipid metabolism result in severe diseases including cardiovascular disease, diabetes and fatty liver. This review summarizes the major metabolic aspects of glucose and lipid, and their regulations in the context of physiology and diseases.
Collapse
Affiliation(s)
- Ligong Chen
- School of Pharmaceutical Sciences, Beijing Advanced Innovation Center for Structural Biology, Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (Ministry of Education), Tsinghua University, Beijing, 100084, China.
| | - Xiao-Wei Chen
- State Key Laboratory of Membrane Biology, Institute of Molecular Medicine, Peking-Tsinghua Center for Life Sciences, Peking University, Beijing, 100871, China.
| | - Xun Huang
- State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, 100101, China.
| | - Bao-Liang Song
- Hubei Key Laboratory of Cell Homeostasis, College of Life Sciences, Wuhan University, Wuhan, 430072, China.
| | - Yan Wang
- Hubei Key Laboratory of Cell Homeostasis, College of Life Sciences, Wuhan University, Wuhan, 430072, China.
| | - Yiguo Wang
- MOE Key Laboratory of Bioinformatics, Tsinghua-Peking Joint Center for Life Sciences, School of Life Sciences, Tsinghua University, Beijing, 100084, China.
| |
Collapse
|
16
|
Abstract
Adipose tissue plays a major role in the regulation of systemic metabolic homeostasis, with the AP2 adaptor complex being important in clathrin-mediated endocytosis (CME) of various cell surface receptors, including glucose transporter 4, the insulin receptor, and β-adrenergic receptors (ARs). One of the AP2 subunits, adaptor-related protein complex 2, α2 subunit (Ap2a2), has recently been identified as a peroxisome proliferator-activated receptor (PPAR)α target gene. The effects of PPARα on the AP2 adaptor complex and CME are unknown. We generated adipocyte-specific Ap2a2 knockout mice and investigated their metabolism when fed a standard chow or high-fat diet, without and with supplementation with the PPARα-agonist WY-14643 (WY). Although Ap2a2 deletion had only minor effects on glycaemic control, it led to substantial impairment in β-adrenergic activation of lipolysis, as evidenced by a loss of cAMP response, PKA activation, and glycerol/fatty acid release. These differences were related to increased cell surface localization of the β2- and β3-ARs. Lipolytic defects were accompanied by impaired WY-mediated loss of fat mass and whole-body fat oxidation. This study demonstrates a novel role for PPARα in β-adrenergic regulation of adipose tissue lipolysis and for adipose tissue in supplying adequate substrate to other peripheral tissues to accommodate the increase in systemic fatty acid oxidation that occurs upon treatment with PPARα agonists.-Montgomery, M. K., Bayliss, J., Keenan, S., Rhost, S., Ting, S. B., Watt, M. J. The role of Ap2a2 in PPARα-mediated regulation of lipolysis in adipose tissue.
Collapse
Affiliation(s)
- Magdalene K Montgomery
- Department of Physiology, School of Biomedical Sciences, University of Melbourne, Melbourne, Victoria, Australia
| | - Jacqueline Bayliss
- Department of Physiology, School of Biomedical Sciences, University of Melbourne, Melbourne, Victoria, Australia
| | - Stacey Keenan
- Department of Physiology, School of Biomedical Sciences, University of Melbourne, Melbourne, Victoria, Australia
| | - Sarah Rhost
- Australian Centre for Blood Diseases, The Alfred Centre, Monash University, Melbourne, Victoria, Australia
| | - Stephen B Ting
- Australian Centre for Blood Diseases, The Alfred Centre, Monash University, Melbourne, Victoria, Australia.,Department of Haematology, Box Hill Hospital (Eastern Health), Melbourne, Victoria, Australia
| | - Matthew J Watt
- Department of Physiology, School of Biomedical Sciences, University of Melbourne, Melbourne, Victoria, Australia
| |
Collapse
|
17
|
Coffey AR, Kanke M, Smallwood TL, Albright J, Pitman W, Gharaibeh RZ, Hua K, Gertz E, Biddinger SB, Temel RE, Pomp D, Sethupathy P, Bennett BJ. microRNA-146a-5p association with the cardiometabolic disease risk factor TMAO. Physiol Genomics 2019; 51:59-71. [PMID: 30633643 DOI: 10.1152/physiolgenomics.00079.2018] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Abstract
Trimethylamine-N-oxide (TMAO), a microbial choline metabolism byproduct that is processed in the liver and excreted into circulation, is associated with increased atherosclerotic lesion formation and cardiovascular disease risk. Genetic regulators of TMAO levels are largely unknown. In the present study, we used 288 mice from a genetically heterogeneous mouse population [Diversity Outbred (DO)] to determine hepatic microRNA associations with TMAO in the context of an atherogenic diet. We also validated findings in two additional animal models of atherosclerosis: liver-specific insulin receptor knockout mice fed a chow diet (LIRKO) and African green monkeys fed high-fat/high-cholesterol diet. Small RNA-sequencing analysis in DO mice, LIRKO mice, and African green monkeys identified only one hepatic microRNA (miR-146a-5p) that is aberrantly expressed across all three models. Moreover, miR-146a-5p levels are associated with circulating TMAO after atherogenic diet in each of these models. We also performed high-resolution genetic mapping and identified a novel quantitative trait locus on Chromosome 12 for TMAO levels. This interval includes two genes, Numb and Dlst, which are inversely correlated with both miR-146a and TMAO and are predicted targets of miR-146a. Both of these genes have been validated as direct targets of miR-146a, though in other cellular contexts. This is the first report to our knowledge of a link between miR-146 and TMAO. Our findings suggest that miR-146-5p, as well as one or more genes at the Chromosome 12 QTL (possibly Numb or Dlst), is strongly linked to TMAO levels and likely involved in the control of atherosclerosis.
Collapse
Affiliation(s)
- Alisha R Coffey
- Curriculum in Genetics and Molecular Biology, University of North Carolina , Chapel Hill, North Carolina
| | - Matt Kanke
- Department of Biomedical Sciences, College of Veterinary Medicine, Cornell University , Ithaca, New York
| | - Tangi L Smallwood
- Curriculum in Genetics and Molecular Biology, University of North Carolina , Chapel Hill, North Carolina
| | - Jody Albright
- Nutrition Research Institute, University of North Carolina, Kannapolis, North Carolina
| | - Wendy Pitman
- Department of Biomedical Sciences, College of Veterinary Medicine, Cornell University , Ithaca, New York
| | - Raad Z Gharaibeh
- Department of Bioinformatics, University of North Carolina , Charlotte, North Carolina
| | - Kunjie Hua
- Department of Genetics, University of North Carolina , Chapel Hill, North Carolina
| | - Erik Gertz
- US Department of Agriculture, Agricultural Research Service Western Human Nutrition Research Center, Obesity and Metabolism Unit, Davis, California
| | - Sudha B Biddinger
- Division of Endocrinology, Boston Children's Hospital, Harvard Medical School , Boston, Massachusetts
| | - Ryan E Temel
- Department of Pharmacology and Nutritional Sciences, University of Kentucky , Lexington, Kentucky
| | - Daniel Pomp
- Department of Genetics, University of North Carolina , Chapel Hill, North Carolina
| | - Praveen Sethupathy
- Department of Biomedical Sciences, College of Veterinary Medicine, Cornell University , Ithaca, New York
| | - Brian J Bennett
- US Department of Agriculture, Agricultural Research Service Western Human Nutrition Research Center, Obesity and Metabolism Unit, Davis, California
| |
Collapse
|
18
|
Zobel M, Disanza A, Senic-Matuglia F, Franco M, Colaluca IN, Confalonieri S, Bisi S, Barbieri E, Caldieri G, Sigismund S, Pece S, Chavrier P, Di Fiore PP, Scita G. A NUMB-EFA6B-ARF6 recycling route controls apically restricted cell protrusions and mesenchymal motility. J Cell Biol 2018; 217:3161-3182. [PMID: 30061108 PMCID: PMC6123001 DOI: 10.1083/jcb.201802023] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2018] [Revised: 05/17/2018] [Accepted: 06/05/2018] [Indexed: 12/13/2022] Open
Abstract
The endocytic protein NUMB has been implicated in the control of various polarized cellular processes, including the acquisition of mesenchymal migratory traits through molecular mechanisms that have only been partially defined. Here, we report that NUMB is a negative regulator of a specialized set of understudied, apically restricted, actin-based protrusions, the circular dorsal ruffles (CDRs), induced by either PDGF or HGF stimulation. Through its PTB domain, NUMB binds directly to an N-terminal NPLF motif of the ARF6 guanine nucleotide exchange factor, EFA6B, and promotes its exchange activity in vitro. In cells, a NUMB-EFA6B-ARF6 axis regulates the recycling of the actin regulatory cargo RAC1 and is critical for the formation of CDRs that mark the acquisition of a mesenchymal mode of motility. Consistently, loss of NUMB promotes HGF-induced cell migration and invasion. Thus, NUMB negatively controls membrane protrusions and the acquisition of mesenchymal migratory traits by modulating EFA6B-ARF6 activity.
Collapse
Affiliation(s)
- Martina Zobel
- IFOM, the FIRC Institute of Molecular Oncology, Milan, Italy
| | - Andrea Disanza
- IFOM, the FIRC Institute of Molecular Oncology, Milan, Italy
| | | | - Michel Franco
- Université Côte d'Azur, Centre National de la Recherche Scientifique, Institut de Pharmacologie Moléculaire et Cellulaire, Valbonne, France
| | | | | | - Sara Bisi
- IFOM, the FIRC Institute of Molecular Oncology, Milan, Italy
| | - Elisa Barbieri
- Department of Experimental Oncology, European Institute of Oncology, Milan, Italy
| | - Giusi Caldieri
- Department of Experimental Oncology, European Institute of Oncology, Milan, Italy
- Department of Oncology and Hemato-Oncology, University of Milan, Milan, Italy
| | - Sara Sigismund
- Department of Experimental Oncology, European Institute of Oncology, Milan, Italy
- Department of Oncology and Hemato-Oncology, University of Milan, Milan, Italy
| | - Salvatore Pece
- Department of Experimental Oncology, European Institute of Oncology, Milan, Italy
- Department of Oncology and Hemato-Oncology, University of Milan, Milan, Italy
| | - Philippe Chavrier
- Institut Curie, PSL Research University, Paris, France
- Centre National de la Recherche Scientifique UMR 144, Membrane and Cytoskeleton Dynamics Team, Paris, France
| | - Pier Paolo Di Fiore
- IFOM, the FIRC Institute of Molecular Oncology, Milan, Italy
- Department of Experimental Oncology, European Institute of Oncology, Milan, Italy
- Department of Oncology and Hemato-Oncology, University of Milan, Milan, Italy
| | - Giorgio Scita
- IFOM, the FIRC Institute of Molecular Oncology, Milan, Italy
- Department of Oncology and Hemato-Oncology, University of Milan, Milan, Italy
| |
Collapse
|
19
|
Liao Y, Wei J, Wang J, Shi X, Luo J, Song BL. The non-canonical NF-κB pathway promotes NPC2 expression and regulates intracellular cholesterol trafficking. Sci China Life Sci 2018; 61:1222-32. [PMID: 30091016 DOI: 10.1007/s11427-018-9339-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/07/2018] [Accepted: 06/14/2018] [Indexed: 02/06/2023]
Abstract
Niemann-Pick type C2 (NPC2) is a lysosome luminal protein that functions in concert with NPC1 to mediate egress of low-density lipoprotein-derived cholesterol from lysosome. The nuclear factor kappa B subunit 2 (NF-κB2) protein is a component of NF-κB transcription factor complex critically implicated in immune and inflammatory responses. Here, we report that NF-κB2 regulates intracellular cholesterol transport by controlling NPC2 expression. RNAi-mediated disruption of NF-κB2, as well as other signaling members of the non-canonical NF-κB pathway, caused intracellular cholesterol accumulation. Blockage of the non-canonical NF-κB pathway suppressed NPC2 expression, whereas Lymphotoxin β receptor (LTβR) activation or Baff receptor (BaffR) stimulation up-regulated the mRNA abundance and protein level of NPC2. Further, NF-κB2 activated NPC2 transcription through direct binding to its promoter region. We also observed cholesterol accumulation in NF-κB2-deficient zebrafish embryo and NF-κB2 mutant mice. Collectively, these data identify a regulatory role for the non-canonical NF-κB pathway in intracellular cholesterol trafficking and suggest a link between cholesterol transport and immune system.
Collapse
|
20
|
Sasso L, Hosamuddin H, Emanueli C. Extracellular vesicles at the cross-line between basic science and clinical needs. Microcirculation 2017; 24. [DOI: 10.1111/micc.12333] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2016] [Accepted: 11/02/2016] [Indexed: 12/14/2022]
Affiliation(s)
- Luana Sasso
- Bristol Heart Institute; School of Clinical Sciences; University of Bristol; Bristol UK
| | - Huma Hosamuddin
- School of Medicine; St. George University of London; Tooting London UK
| | - Costanza Emanueli
- Bristol Heart Institute; School of Clinical Sciences; University of Bristol; Bristol UK
- National Health and Lung Institute; Hammersmith campus; Imperial College London; UK
| |
Collapse
|
21
|
Hung WS, Ling P, Cheng JC, Chang SS, Tseng CP. Disabled-2 is a negative immune regulator of lipopolysaccharide-stimulated Toll-like receptor 4 internalization and signaling. Sci Rep 2016; 6:35343. [PMID: 27748405 PMCID: PMC5066213 DOI: 10.1038/srep35343] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2016] [Accepted: 09/28/2016] [Indexed: 12/15/2022] Open
Abstract
Toll-like receptor 4 (TLR4) plays a pivotal role in the host response to lipopolysaccharide (LPS), a major cell wall component of Gram-negative bacteria. Here, we elucidated whether the endocytic adaptor protein Disabled-2 (Dab2), which is abundantly expressed in macrophages, plays a role in LPS-stimulated TLR4 signaling and trafficking. Molecular analysis and transcriptome profiling of RAW264.7 macrophage-like cells expressing short-hairpin RNA of Dab2 revealed that Dab2 regulated the TLR4/TRIF pathway upon LPS stimulation. Knockdown of Dab2 augmented TRIF-dependent interferon regulatory factor 3 activation and the expression of subsets of inflammatory cytokines and interferon-inducible genes. Dab2 acted as a clathrin sponge and sequestered clathrin from TLR4 in the resting stage of macrophages. Upon LPS stimulation, clathrin was released from Dab2 to facilitate endocytosis of TLR4 for triggering the TRIF-mediated pathway. Dab2 functions as a negative immune regulator of TLR4 endocytosis and signaling, supporting a novel role for a Dab2-associated regulatory circuit in controlling the inflammatory response of macrophages to endotoxin.
Collapse
Affiliation(s)
- Wei-Shan Hung
- Graduate Institute of Biomedical Sciences, College of Medicine, Chang Gung University, Kwei-Shan, Taoyuan 333, Taiwan, Republic of China
| | - Pin Ling
- Institute of Basic Medical Sciences, College of Medicine, National Cheng Kung University, Tainan 701, Taiwan, Republic of China.,Department of Microbiology and Immunology, College of Medicine, National Cheng Kung University, Tainan 701, Taiwan, Republic of China
| | - Ju-Chien Cheng
- Department of Medical Laboratory Science and Biotechnology, China Medical University, Taichung 404, Taiwan, Republic of China
| | - Shy-Shin Chang
- Department of Family Medicine, Chang Gung Memorial Hospital, Kweishan, Taoyuan 333, Taiwan, Republic of China
| | - Ching-Ping Tseng
- Graduate Institute of Biomedical Sciences, College of Medicine, Chang Gung University, Kwei-Shan, Taoyuan 333, Taiwan, Republic of China.,Department of Medical Biotechnology and Laboratory Science, College of Medicine, Chang Gung University, Kwei-Shan, Taoyuan 333, Taiwan, Republic of China.,Molecular Medicine Research Center, Chang Gung University, Kwei-Shan, Taoyuan 333, Taiwan, Republic of China.,Department of Laboratory Medicine, Chang Gung Memorial Hospital, Kwei-Shan, Taoyuan 333, Taiwan, Republic of China
| |
Collapse
|
22
|
Yuan Q, Fu Z, Wei J, Li PS, Miao HH, Qu YX, Xu J, Qin J, Li BL, Song BL, Ma Y. Identification and characterization of NPC1L1 variants in Uygur and Kazakh with extreme low-density lipoprotein cholesterol. Biochem Biophys Res Commun 2016; 479:628-635. [DOI: 10.1016/j.bbrc.2016.09.164] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2016] [Accepted: 09/29/2016] [Indexed: 01/20/2023]
|
23
|
Su JF, Wei J, Li PS, Miao HH, Ma YC, Qu YX, Xu J, Qin J, Li BL, Song BL, Xu ZP, Luo J. Numb directs the subcellular localization of EAAT3 through binding the YxNxxF motif. J Cell Sci 2016; 129:3104-14. [PMID: 27358480 DOI: 10.1242/jcs.185496] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2016] [Accepted: 06/24/2016] [Indexed: 11/20/2022] Open
Abstract
Excitatory amino acid transporter type 3 (EAAT3, also known as SLC1A1) is a high-affinity, Na(+)-dependent glutamate carrier that localizes primarily within the cell and at the apical plasma membrane. Although previous studies have reported proteins and sequence regions involved in EAAT3 trafficking, the detailed molecular mechanism by which EAAT3 is distributed to the correct location still remains elusive. Here, we identify that the YVNGGF sequence in the C-terminus of EAAT3 is responsible for its intracellular localization and apical sorting in rat hepatoma cells CRL1601 and Madin-Darby canine kidney (MDCK) cells, respectively. We further demonstrate that Numb, a clathrin adaptor protein, directly binds the YVNGGF motif and regulates the localization of EAAT3. Mutation of Y503, N505 and F508 within the YVNGGF motif to alanine residues or silencing Numb by use of small interfering RNA (siRNA) results in the aberrant localization of EAAT3. Moreover, both Numb and the YVNGGF motif mediate EAAT3 endocytosis in CRL1601 cells. In summary, our study suggests that Numb is a pivotal adaptor protein that mediates the subcellular localization of EAAT3 through binding the YxNxxF (where x stands for any amino acid) motif.
Collapse
Affiliation(s)
- Jin-Feng Su
- Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Zhejiang University, Hangzhou 310058, China
| | - Jian Wei
- College of Life Sciences, Wuhan University, Wuhan 430072, China
| | - Pei-Shan Li
- State Key Laboratory of Molecular Biology, Institute of Biochemistry and Cell Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200031, China
| | - Hong-Hua Miao
- State Key Laboratory of Molecular Biology, Institute of Biochemistry and Cell Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200031, China
| | - Yong-Chao Ma
- College of Life Sciences, Wuhan University, Wuhan 430072, China
| | - Yu-Xiu Qu
- State Key Laboratory of Molecular Biology, Institute of Biochemistry and Cell Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200031, China
| | - Jie Xu
- State Key Laboratory of Molecular Biology, Institute of Biochemistry and Cell Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200031, China
| | - Jie Qin
- State Key Laboratory of Molecular Biology, Institute of Biochemistry and Cell Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200031, China
| | - Bo-Liang Li
- State Key Laboratory of Molecular Biology, Institute of Biochemistry and Cell Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200031, China
| | - Bao-Liang Song
- College of Life Sciences, Wuhan University, Wuhan 430072, China
| | - Zheng-Ping Xu
- Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Zhejiang University, Hangzhou 310058, China
| | - Jie Luo
- College of Life Sciences, Wuhan University, Wuhan 430072, China
| |
Collapse
|
24
|
Yang J, Zhang X, Liu Z, Yuan Z, Song Y, Shao S, Zhou X, Yan H, Guan Q, Gao L, Zhang H, Zhao J. High-Cholesterol Diet Disrupts the Levels of Hormones Derived from Anterior Pituitary Basophilic Cells. J Neuroendocrinol 2016; 28:12369. [PMID: 27020952 DOI: 10.1111/jne.12369] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/12/2015] [Revised: 01/13/2016] [Accepted: 01/21/2016] [Indexed: 11/30/2022]
Abstract
Emerging evidence shows that elevated cholesterol levels are detrimental to health. However, it is unclear whether there is an association between cholesterol and the pituitary. We investigated the effects of a high-cholesterol diet on pituitary hormones using in vivo animal studies and an epidemiological study. In the animal experiments, rats were fed a high-cholesterol or control diet for 28 weeks. In rats fed the high-cholesterol diet, serum levels of thyroid-stimulating hormone (TSH; also known as thyrotrophin), luteinising hormone (LH) and follicle-stimulating hormone (FSH) produced by the basophilic cells of the anterior pituitary were elevated in a time-dependent manner. Among these hormones, TSH was the first to undergo a significant change, whereas adrenocorticotrophic hormone (ACTH), another hormone produced by basophilic cells, was not changed significantly. As the duration of cholesterol feeding increased, cholesterol deposition increased gradually in the pituitary. Histologically, basophilic cells, and especially thyrotrophs and gonadotrophs, showed an obvious increase in cell area, as well as a potential increase in their proportion of total pituitary cells. Expression of the β-subunit of TSH, FSH and LH, which controls hormone specificity and activity, exhibited a corresponding increase. In the epidemiological study, we found a similar elevation of serum TSH, LH and FSH and a decrease in ACTH in patients with hypercholesterolaemia. Significant positive correlations existed between serum total cholesterol and TSH, FSH or LH, even after adjusting for confounding factors. Taken together, the results of the present study suggest that the high-cholesterol diet affected the levels of hormones derived from anterior pituitary basophilic cells. This phenomenon might contribute to the pituitary functional disturbances described in hypercholesterolaemia.
Collapse
Affiliation(s)
- J Yang
- Department of Endocrinology, Shandong Provincial Hospital affiliated to Shandong University, Jinan, Shandong, China
- Institute of Endocrinology and Metabolism, Shandong Academy of Clinical Medicine, Jinan, Shandong, China
- Shandong Clinical Medical Center of Endocrinology and Metabolism, Jinan, Shandong, China
| | - X Zhang
- Department of Endocrinology, Shandong Provincial Hospital affiliated to Shandong University, Jinan, Shandong, China
- Institute of Endocrinology and Metabolism, Shandong Academy of Clinical Medicine, Jinan, Shandong, China
- Shandong Clinical Medical Center of Endocrinology and Metabolism, Jinan, Shandong, China
| | - Z Liu
- Clinical Laboratory, Shandong Provincial Hospital affiliated to Shandong University, Jinan, Shandong, China
| | - Z Yuan
- Department of Epidemiology and Biostatistics, School of Public Health, Shandong University, Jinan, Shandong, China
| | - Y Song
- Department of Endocrinology, Shandong Provincial Hospital affiliated to Shandong University, Jinan, Shandong, China
- Institute of Endocrinology and Metabolism, Shandong Academy of Clinical Medicine, Jinan, Shandong, China
- Shandong Clinical Medical Center of Endocrinology and Metabolism, Jinan, Shandong, China
| | - S Shao
- Department of Endocrinology, Shandong Provincial Hospital affiliated to Shandong University, Jinan, Shandong, China
- Institute of Endocrinology and Metabolism, Shandong Academy of Clinical Medicine, Jinan, Shandong, China
- Shandong Clinical Medical Center of Endocrinology and Metabolism, Jinan, Shandong, China
| | - X Zhou
- Department of Endocrinology, Shandong Provincial Hospital affiliated to Shandong University, Jinan, Shandong, China
- Institute of Endocrinology and Metabolism, Shandong Academy of Clinical Medicine, Jinan, Shandong, China
- Shandong Clinical Medical Center of Endocrinology and Metabolism, Jinan, Shandong, China
| | - H Yan
- Institute of Endocrinology and Metabolism, Shandong Academy of Clinical Medicine, Jinan, Shandong, China
- Shandong Clinical Medical Center of Endocrinology and Metabolism, Jinan, Shandong, China
| | - Q Guan
- Department of Endocrinology, Shandong Provincial Hospital affiliated to Shandong University, Jinan, Shandong, China
- Institute of Endocrinology and Metabolism, Shandong Academy of Clinical Medicine, Jinan, Shandong, China
- Shandong Clinical Medical Center of Endocrinology and Metabolism, Jinan, Shandong, China
| | - L Gao
- Institute of Endocrinology and Metabolism, Shandong Academy of Clinical Medicine, Jinan, Shandong, China
- Shandong Clinical Medical Center of Endocrinology and Metabolism, Jinan, Shandong, China
- Scientific Center, Shandong Provincial Hospital affiliated to Shandong University, Jinan, Shandong, China
| | - H Zhang
- Department of Endocrinology, Shandong Provincial Hospital affiliated to Shandong University, Jinan, Shandong, China
- Institute of Endocrinology and Metabolism, Shandong Academy of Clinical Medicine, Jinan, Shandong, China
- Shandong Clinical Medical Center of Endocrinology and Metabolism, Jinan, Shandong, China
| | - J Zhao
- Department of Endocrinology, Shandong Provincial Hospital affiliated to Shandong University, Jinan, Shandong, China
- Institute of Endocrinology and Metabolism, Shandong Academy of Clinical Medicine, Jinan, Shandong, China
- Shandong Clinical Medical Center of Endocrinology and Metabolism, Jinan, Shandong, China
| |
Collapse
|
25
|
Nam DE, Kim OK, Park YK, Lee J. Synthetic High-Density Lipoprotein-Like Nanocarrier Improved Cellular Transport of Lysosomal Cholesterol in Human Sterol Carrier Protein-Deficient Fibroblasts. J Med Food 2016; 19:62-7. [DOI: 10.1089/jmf.2015.3578] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Affiliation(s)
- Da-Eun Nam
- Department of Medical Nutrition, Kyung Hee University, Gyeonggi, Korea
| | - Ok-Kyung Kim
- Department of Medical Nutrition, Kyung Hee University, Gyeonggi, Korea
| | - Yoo Kyoung Park
- Department of Medical Nutrition, Kyung Hee University, Gyeonggi, Korea
| | - Jeongmin Lee
- Department of Medical Nutrition, Kyung Hee University, Gyeonggi, Korea
| |
Collapse
|
26
|
Abudoukelimu M, Fu ZY, Maimaiti A, Ma YT, Abudu M, Zhu Q, Adi D, Yang YN, Li XM, Xie X, Liu F, Chen BD. The association of cholesterol absorption gene Numb polymorphism with Coronary Artery Disease among Han Chinese and Uighur Chinese in Xinjiang, China. Lipids Health Dis 2015; 14:120. [PMID: 26415596 PMCID: PMC4587863 DOI: 10.1186/s12944-015-0102-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2015] [Accepted: 08/23/2015] [Indexed: 12/25/2022] Open
Abstract
BACKGROUND Hypercholesterolemia is a major risk factor for coronary artery disease (CAD). As Numb is an important regulating factor for intestinal cholesterol absorption and plasma cholesterol level, the aim of the present study is to assess the association between human Numb gene polymorphism and CAD among Han and Uighur Chinese. METHODS We have conducted two independent case-control studies in Han Chinese (384 CAD patients and 433 controls) and Uighur Chinese (506 CAD patients and 351 controls) subjects. All subjects were genotyped for four kinds of SNPs (rs12435797, rs2108552, rs1019075 and rs17781919) and SNP is used as a genetic marker for human Numb gene. Genotyping was undertaken using TaqMan SNP genotyping assay, and the subjects' ethnicity and gender were considered in the analysis. RESULTS We found that rs2108552 was associated with CAD in the dominant model (CC vs CG + GG) for the total Han Chinese population (n = 200) and Han Chinese males (n = 115) (P = 0.004 and P = 0.001, respectively). The difference remained statistically significant after multivariate adjustment (total: OR = 1.687, P = 0.004; male: OR = 1.498, P = 0.006). Further, for the total (n = 817) and male (n = 490) Han Chinese, the frequency of the haplotype (T-C-T-C) was significantly higher in the CAD patients than in the controls (P = 0.004 and P = 0.002), and the frequency of the haplotype (G-G-T-C) was significantly lower in the CAD patients than in the control subjects (P = 0.013, P = 0.007). In addition, for the total (n = 857) and male (n = 582) Uighur Chinese, we observed that rs12435797 was associated with CAD in an additive and recessive model (P = 0.021 and P = 0.009; P = 0.048 and P = 0.034). However, the difference did not remain statistically significant after multivariate adjustment. The overall distribution of rs2108552, rs1019075 and rs17781919 genotypes, alleles and the frequency of the haplotype established by four SNPs showed no significant difference between CAD patients and control subjects in the total, male and female Uighur Chinese. CONCLUSIONS The results of this study indicate that CC genotype of rs2108552 and T-C-T-C haplotypes in Numb gene is a possible risk genetic marker and G allele and G-G-T-C haplotypes is a possible protective genetic marker for CAD in male Han Chinese.
Collapse
Affiliation(s)
- Mayila Abudoukelimu
- Department of Cardiology, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, 830001, People's Republic of China.
- Xinjiang Key Laboratory of Cardiovascular Disease Research, Urumqi, 830001, People's Republic of China.
- Present address: The First Affiliated Hospital of Xinjiang Medical University, Li Yu Shan South Road 137, Urumqi, 830001, People's Republic of China.
- Present address: Xinjiang Key Laboratory of Cardiovascular Disease Research, Li Yu Shan South Road 137, Urumqi, 830001, People's Republic of China.
| | - Zhen-Yan Fu
- Department of Cardiology, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, 830001, People's Republic of China.
- Xinjiang Key Laboratory of Cardiovascular Disease Research, Urumqi, 830001, People's Republic of China.
- Present address: The First Affiliated Hospital of Xinjiang Medical University, Li Yu Shan South Road 137, Urumqi, 830001, People's Republic of China.
- Present address: Xinjiang Key Laboratory of Cardiovascular Disease Research, Li Yu Shan South Road 137, Urumqi, 830001, People's Republic of China.
| | - Ailifeire Maimaiti
- Department of Cardiology, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, 830001, People's Republic of China.
- Xinjiang Key Laboratory of Cardiovascular Disease Research, Urumqi, 830001, People's Republic of China.
- Present address: The First Affiliated Hospital of Xinjiang Medical University, Li Yu Shan South Road 137, Urumqi, 830001, People's Republic of China.
- Present address: Xinjiang Key Laboratory of Cardiovascular Disease Research, Li Yu Shan South Road 137, Urumqi, 830001, People's Republic of China.
| | - Yi-Tong Ma
- Department of Cardiology, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, 830001, People's Republic of China.
- Xinjiang Key Laboratory of Cardiovascular Disease Research, Urumqi, 830001, People's Republic of China.
- Present address: The First Affiliated Hospital of Xinjiang Medical University, Li Yu Shan South Road 137, Urumqi, 830001, People's Republic of China.
- Present address: Xinjiang Key Laboratory of Cardiovascular Disease Research, Li Yu Shan South Road 137, Urumqi, 830001, People's Republic of China.
| | - Minawaer Abudu
- The First Affiliated Hospital of Xinjiang Medical University, Urumqi, 830001, People's Republic of China.
- Present address: The First Affiliated Hospital of Xinjiang Medical University, Li Yu Shan South Road 137, Urumqi, 830001, People's Republic of China.
| | - Qing Zhu
- Department of Cardiology, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, 830001, People's Republic of China.
- Xinjiang Key Laboratory of Cardiovascular Disease Research, Urumqi, 830001, People's Republic of China.
- Present address: The First Affiliated Hospital of Xinjiang Medical University, Li Yu Shan South Road 137, Urumqi, 830001, People's Republic of China.
- Present address: Xinjiang Key Laboratory of Cardiovascular Disease Research, Li Yu Shan South Road 137, Urumqi, 830001, People's Republic of China.
| | - Dilare Adi
- Department of Cardiology, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, 830001, People's Republic of China.
- Xinjiang Key Laboratory of Cardiovascular Disease Research, Urumqi, 830001, People's Republic of China.
- Present address: The First Affiliated Hospital of Xinjiang Medical University, Li Yu Shan South Road 137, Urumqi, 830001, People's Republic of China.
- Present address: Xinjiang Key Laboratory of Cardiovascular Disease Research, Li Yu Shan South Road 137, Urumqi, 830001, People's Republic of China.
| | - Yi-Ning Yang
- Department of Cardiology, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, 830001, People's Republic of China.
- Xinjiang Key Laboratory of Cardiovascular Disease Research, Urumqi, 830001, People's Republic of China.
- Present address: The First Affiliated Hospital of Xinjiang Medical University, Li Yu Shan South Road 137, Urumqi, 830001, People's Republic of China.
- Present address: Xinjiang Key Laboratory of Cardiovascular Disease Research, Li Yu Shan South Road 137, Urumqi, 830001, People's Republic of China.
| | - Xiao-Mei Li
- Department of Cardiology, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, 830001, People's Republic of China.
- Xinjiang Key Laboratory of Cardiovascular Disease Research, Urumqi, 830001, People's Republic of China.
- Present address: The First Affiliated Hospital of Xinjiang Medical University, Li Yu Shan South Road 137, Urumqi, 830001, People's Republic of China.
- Present address: Xinjiang Key Laboratory of Cardiovascular Disease Research, Li Yu Shan South Road 137, Urumqi, 830001, People's Republic of China.
| | - Xiang Xie
- Department of Cardiology, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, 830001, People's Republic of China.
- Xinjiang Key Laboratory of Cardiovascular Disease Research, Urumqi, 830001, People's Republic of China.
- Present address: The First Affiliated Hospital of Xinjiang Medical University, Li Yu Shan South Road 137, Urumqi, 830001, People's Republic of China.
- Present address: Xinjiang Key Laboratory of Cardiovascular Disease Research, Li Yu Shan South Road 137, Urumqi, 830001, People's Republic of China.
| | - Fen Liu
- Xinjiang Key Laboratory of Cardiovascular Disease Research, Urumqi, 830001, People's Republic of China.
- Present address: Xinjiang Key Laboratory of Cardiovascular Disease Research, Li Yu Shan South Road 137, Urumqi, 830001, People's Republic of China.
| | - Bang-Dang Chen
- Xinjiang Key Laboratory of Cardiovascular Disease Research, Urumqi, 830001, People's Republic of China.
- Present address: Xinjiang Key Laboratory of Cardiovascular Disease Research, Li Yu Shan South Road 137, Urumqi, 830001, People's Republic of China.
| |
Collapse
|
27
|
Wüstner D, Solanko K. How cholesterol interacts with proteins and lipids during its intracellular transport. Biochimica et Biophysica Acta (BBA) - Biomembranes 2015; 1848:1908-26. [DOI: 10.1016/j.bbamem.2015.05.010] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/04/2015] [Revised: 04/14/2015] [Accepted: 05/13/2015] [Indexed: 12/13/2022]
|
28
|
Abudoukelimu M, Fu ZY, Xiang Y, Ma YT, Zhu Q, Abudu M, Adi D, Yang YN, Li XM, Xie X, Liu F, Chen BD. Genetic variants of numb gene were associated with elevated total cholesterol level and low density lipoprotein cholesterol level in Chinese subjects, in Xinjiang, China. Diagn Pathol 2015; 10:141. [PMID: 26264115 PMCID: PMC4534016 DOI: 10.1186/s13000-015-0373-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2015] [Accepted: 07/28/2015] [Indexed: 11/17/2022] Open
Abstract
BACKGROUND Hypercholesterolemia is one of the most common risk factors for Coronary Artery Disease (CAD), which is the leading cause of death worldwide. As Numb is an important regulating factor regarding intestinal cholesterol absorption and plasma cholesterol level, the aim of the present study is to investigate the relationship between human Numb gene polymorphism and cholesterol level in Chinese subjects. METHODS All participants came from the First Affiliated Hospital of Xinjiang Medical University (Male: 1052 and Female: 596), and four tagging SNPs (rs2108552, rs12435797, rs1019075 and rs17781919) of Numb gene were genotyped by using TaqMan assays and analyzed in an ABI 7900HT Fast Real-Time PCR System. Further, general liner model was applied for assessing the relationship between cholesterol level and genotypes. RESULTS By analyzing a dominant model, recessive model and an additive model, we have found that SNP rs2108552 was associated with total cholesterol (TC) and low density lipoprotein-cholesterol level (LDL-C) (P = 0.000 and P = 0.007; P =0.042 and P =0.009; P = 0.006 and P = 0.030). C allele of SNP rs17781919 had significantly lower plasma TC level (3.46 ± 0.74 mmol/L vs 4.27 ± 1.1 mmol/L) and LDL-C level (0.98 ± 0.55 mmol/L vs 2.64 ± 0.93 mmol/L) when compared with T allele. Additionally, SNP rs12435797 was associated with TC level and SNP rs1019075 was associated with LDL-C level by analyses of a dominant model, recessive model and an additive model (P = 0.000, P = 0.005 and P = 0.004; P = 0.016, P = 0.008 and P = 0.033). Further, the association of rs2108552, rs12435797, rs1019075 and rs17781919 with aforementioned different kinds of cholesterol levels remained statistically significant after multivariate adjustment of ethnicity, gender, age, smoking and obesity. CONCLUSIONS Our results indicated that both rs2108552 and rs17781919 in the Numb gene were associated with total cholesterol level and density lipoprotein-cholesterol level in Chinese subjects.
Collapse
Affiliation(s)
- Mayila Abudoukelimu
- Department of Cardiology, the First Affiliated Hospital of Xinjiang Medical University, Urumqi, 830001, People's Republic of China
- Xinjiang Key Laboratory of Cardiovascular Disease Research, Urumqi, 830001, People's Republic of China
- Present address: Department of Cardiology, the First Affiliated Hospital of Xinjiang Medical University, Li Yu Shan South Road 137, Urumqi, 830001, People's Republic of China
- Present address: Xinjiang Key Laboratory of Cardiovascular Disease Research, Li Yu Shan South Road 137, Urumqi, 830001, People's Republic of China
| | - Zhen-Yan Fu
- Department of Cardiology, the First Affiliated Hospital of Xinjiang Medical University, Urumqi, 830001, People's Republic of China
- Xinjiang Key Laboratory of Cardiovascular Disease Research, Urumqi, 830001, People's Republic of China
- Present address: Department of Cardiology, the First Affiliated Hospital of Xinjiang Medical University, Li Yu Shan South Road 137, Urumqi, 830001, People's Republic of China
- Present address: Xinjiang Key Laboratory of Cardiovascular Disease Research, Li Yu Shan South Road 137, Urumqi, 830001, People's Republic of China
| | - Yang Xiang
- Department of Cardiology, the First Affiliated Hospital of Xinjiang Medical University, Urumqi, 830001, People's Republic of China
- Xinjiang Key Laboratory of Cardiovascular Disease Research, Urumqi, 830001, People's Republic of China
- Present address: Department of Cardiology, the First Affiliated Hospital of Xinjiang Medical University, Li Yu Shan South Road 137, Urumqi, 830001, People's Republic of China
- Present address: Xinjiang Key Laboratory of Cardiovascular Disease Research, Li Yu Shan South Road 137, Urumqi, 830001, People's Republic of China
| | - Yi-Tong Ma
- Department of Cardiology, the First Affiliated Hospital of Xinjiang Medical University, Urumqi, 830001, People's Republic of China.
- Xinjiang Key Laboratory of Cardiovascular Disease Research, Urumqi, 830001, People's Republic of China.
- Present address: Department of Cardiology, the First Affiliated Hospital of Xinjiang Medical University, Li Yu Shan South Road 137, Urumqi, 830001, People's Republic of China.
- Present address: Xinjiang Key Laboratory of Cardiovascular Disease Research, Li Yu Shan South Road 137, Urumqi, 830001, People's Republic of China.
| | - Qing Zhu
- Department of Cardiology, the First Affiliated Hospital of Xinjiang Medical University, Urumqi, 830001, People's Republic of China
- Xinjiang Key Laboratory of Cardiovascular Disease Research, Urumqi, 830001, People's Republic of China
- Present address: Department of Cardiology, the First Affiliated Hospital of Xinjiang Medical University, Li Yu Shan South Road 137, Urumqi, 830001, People's Republic of China
- Present address: Xinjiang Key Laboratory of Cardiovascular Disease Research, Li Yu Shan South Road 137, Urumqi, 830001, People's Republic of China
| | - Minawaer Abudu
- The First Affiliated Hospital of Xinjiang Medical University, Urumqi, 830001, People's Republic of China
- Present address: Department of Cardiology, the First Affiliated Hospital of Xinjiang Medical University, Li Yu Shan South Road 137, Urumqi, 830001, People's Republic of China
| | - Dilare Adi
- Department of Cardiology, the First Affiliated Hospital of Xinjiang Medical University, Urumqi, 830001, People's Republic of China
- Xinjiang Key Laboratory of Cardiovascular Disease Research, Urumqi, 830001, People's Republic of China
- Present address: Department of Cardiology, the First Affiliated Hospital of Xinjiang Medical University, Li Yu Shan South Road 137, Urumqi, 830001, People's Republic of China
- Present address: Xinjiang Key Laboratory of Cardiovascular Disease Research, Li Yu Shan South Road 137, Urumqi, 830001, People's Republic of China
| | - Yi-Ning Yang
- Department of Cardiology, the First Affiliated Hospital of Xinjiang Medical University, Urumqi, 830001, People's Republic of China
- Xinjiang Key Laboratory of Cardiovascular Disease Research, Urumqi, 830001, People's Republic of China
- Present address: Department of Cardiology, the First Affiliated Hospital of Xinjiang Medical University, Li Yu Shan South Road 137, Urumqi, 830001, People's Republic of China
- Present address: Xinjiang Key Laboratory of Cardiovascular Disease Research, Li Yu Shan South Road 137, Urumqi, 830001, People's Republic of China
| | - Xiao-Mei Li
- Department of Cardiology, the First Affiliated Hospital of Xinjiang Medical University, Urumqi, 830001, People's Republic of China
- Xinjiang Key Laboratory of Cardiovascular Disease Research, Urumqi, 830001, People's Republic of China
- Present address: Department of Cardiology, the First Affiliated Hospital of Xinjiang Medical University, Li Yu Shan South Road 137, Urumqi, 830001, People's Republic of China
- Present address: Xinjiang Key Laboratory of Cardiovascular Disease Research, Li Yu Shan South Road 137, Urumqi, 830001, People's Republic of China
| | - Xiang Xie
- Department of Cardiology, the First Affiliated Hospital of Xinjiang Medical University, Urumqi, 830001, People's Republic of China
- Xinjiang Key Laboratory of Cardiovascular Disease Research, Urumqi, 830001, People's Republic of China
- Present address: Department of Cardiology, the First Affiliated Hospital of Xinjiang Medical University, Li Yu Shan South Road 137, Urumqi, 830001, People's Republic of China
- Present address: Xinjiang Key Laboratory of Cardiovascular Disease Research, Li Yu Shan South Road 137, Urumqi, 830001, People's Republic of China
| | - Fen Liu
- Xinjiang Key Laboratory of Cardiovascular Disease Research, Urumqi, 830001, People's Republic of China
- Present address: Xinjiang Key Laboratory of Cardiovascular Disease Research, Li Yu Shan South Road 137, Urumqi, 830001, People's Republic of China
| | - Bang-Dang Chen
- Xinjiang Key Laboratory of Cardiovascular Disease Research, Urumqi, 830001, People's Republic of China
- Present address: Xinjiang Key Laboratory of Cardiovascular Disease Research, Li Yu Shan South Road 137, Urumqi, 830001, People's Republic of China
| |
Collapse
|