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Jiang JF, Zhou ZY, Liu YZ, Wu L, Nie BB, Huang L, Zhang C. Role of Sp1 in atherosclerosis. Mol Biol Rep 2022; 49:9893-9902. [PMID: 35715606 DOI: 10.1007/s11033-022-07516-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Revised: 04/12/2022] [Accepted: 04/25/2022] [Indexed: 10/18/2022]
Abstract
Specificity protein (Sp) is a famous family of transcription factors including Sp1, Sp2 and Sp3. Sp1 is the first one of Sp family proteins to be characterized and cloned in mammalian. It has been proposed that Sp1 acts as a modulator of the expression of target gene through interacting with a series of proteins, especially with transcriptional factors, and thereby contributes to the regulation of diverse biological processes. Notably, growing evidence indicates that Sp1 is involved in the main events in the development of atherosclerosis (AS), such as inflammation, lipid metabolism, plaque stability, vascular smooth muscle cells (VSMCs) proliferation and endothelial dysfunction. This review is designed to provide useful clues to further understanding roles of Sp1 in the pathogenesis of AS, and may be helpful for the design of novel efficacious therapeutics agents targeting Sp1.
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Affiliation(s)
- Jie-Feng Jiang
- Institute of Cardiovascular Disease, Key Lab for Arteriosclerology of Hunan Province, Hengyang Medical School, Hunan International Scientific and Technological Cooperation Base of Arteriosclerotic Disease, University of South China, 421001, Hengyang, Hunan, People's Republic of China
- Research Laboratory of Translational Medicine, Hengyang Medical School, University of South China, 421001, Hengyang, Hunan, People's Republic of China
- Departments of Clinical Medicine, Hengyang Medical School, University of South China, 421001, Hengyang, Hunan, People's Republic of China
| | - Zheng-Yang Zhou
- Institute of Cardiovascular Disease, Key Lab for Arteriosclerology of Hunan Province, Hengyang Medical School, Hunan International Scientific and Technological Cooperation Base of Arteriosclerotic Disease, University of South China, 421001, Hengyang, Hunan, People's Republic of China
- Research Laboratory of Translational Medicine, Hengyang Medical School, University of South China, 421001, Hengyang, Hunan, People's Republic of China
- Departments of Clinical Medicine, Hengyang Medical School, University of South China, 421001, Hengyang, Hunan, People's Republic of China
| | - Yi-Zhang Liu
- Institute of Cardiovascular Disease, Key Lab for Arteriosclerology of Hunan Province, Hengyang Medical School, Hunan International Scientific and Technological Cooperation Base of Arteriosclerotic Disease, University of South China, 421001, Hengyang, Hunan, People's Republic of China
- Research Laboratory of Translational Medicine, Hengyang Medical School, University of South China, 421001, Hengyang, Hunan, People's Republic of China
- Departments of Clinical Medicine, Hengyang Medical School, University of South China, 421001, Hengyang, Hunan, People's Republic of China
| | - Li Wu
- Institute of Cardiovascular Disease, Key Lab for Arteriosclerology of Hunan Province, Hengyang Medical School, Hunan International Scientific and Technological Cooperation Base of Arteriosclerotic Disease, University of South China, 421001, Hengyang, Hunan, People's Republic of China
- Research Laboratory of Translational Medicine, Hengyang Medical School, University of South China, 421001, Hengyang, Hunan, People's Republic of China
- Departments of Clinical Medicine, Hengyang Medical School, University of South China, 421001, Hengyang, Hunan, People's Republic of China
| | - Bin-Bin Nie
- Institute of Cardiovascular Disease, Key Lab for Arteriosclerology of Hunan Province, Hengyang Medical School, Hunan International Scientific and Technological Cooperation Base of Arteriosclerotic Disease, University of South China, 421001, Hengyang, Hunan, People's Republic of China
- Research Laboratory of Translational Medicine, Hengyang Medical School, University of South China, 421001, Hengyang, Hunan, People's Republic of China
- Departments of Clinical Medicine, Hengyang Medical School, University of South China, 421001, Hengyang, Hunan, People's Republic of China
| | - Liang Huang
- Research Laboratory of Translational Medicine, Hengyang Medical School, University of South China, 421001, Hengyang, Hunan, People's Republic of China.
| | - Chi Zhang
- Institute of Cardiovascular Disease, Key Lab for Arteriosclerology of Hunan Province, Hengyang Medical School, Hunan International Scientific and Technological Cooperation Base of Arteriosclerotic Disease, University of South China, 421001, Hengyang, Hunan, People's Republic of China.
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2
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Raftopulos NL, Washaya TC, Niederprüm A, Egert A, Hakeem-Sanni MF, Varney B, Aishah A, Georgieva ML, Olsson E, Dos Santos DZ, Nassar ZD, Cochran BJ, Nagarajan SR, Kakani MS, Hastings JF, Croucher DR, Rye KA, Butler LM, Grewal T, Hoy AJ. Prostate cancer cell proliferation is influenced by LDL-cholesterol availability and cholesteryl ester turnover. Cancer Metab 2022; 10:1. [PMID: 35033184 PMCID: PMC8760736 DOI: 10.1186/s40170-021-00278-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2021] [Accepted: 11/24/2021] [Indexed: 12/22/2022] Open
Abstract
BACKGROUND Prostate cancer growth is driven by androgen receptor signaling, and advanced disease is initially treatable by depleting circulating androgens. However, prostate cancer cells inevitably adapt, resulting in disease relapse with incurable castrate-resistant prostate cancer. Androgen deprivation therapy has many side effects, including hypercholesterolemia, and more aggressive and castrate-resistant prostate cancers typically feature cellular accumulation of cholesterol stored in the form of cholesteryl esters. As cholesterol is a key substrate for de novo steroidogenesis in prostate cells, this study hypothesized that castrate-resistant/advanced prostate cancer cell growth is influenced by the availability of extracellular, low-density lipoprotein (LDL)-derived, cholesterol, which is coupled to intracellular cholesteryl ester homeostasis. METHODS C4-2B and PC3 prostate cancer cells were cultured in media supplemented with fetal calf serum (FCS), charcoal-stripped FCS (CS-FCS), lipoprotein-deficient FCS (LPDS), or charcoal-stripped LPDS (CS-LPDS) and analyzed by a variety of biochemical techniques. Cell viability and proliferation were measured by MTT assay and Incucyte, respectively. RESULTS Reducing lipoprotein availability led to a reduction in cholesteryl ester levels and cell growth in C4-2B and PC3 cells, with concomitant reductions in PI3K/mTOR and p38MAPK signaling. This reduced growth in LPDS-containing media was fully recovered by supplementation of exogenous low-density lipoprotein (LDL), but LDL only partially rescued growth of cells cultured with CS-LPDS. This growth pattern was not associated with changes in androgen receptor signaling but rather increased p38MAPK and MEK1/ERK/MSK1 activation. The ability of LDL supplementation to rescue cell growth required cholesterol esterification as well as cholesteryl ester hydrolysis activity. Further, growth of cells cultured in low androgen levels (CS-FCS) was suppressed when cholesteryl ester hydrolysis was inhibited. CONCLUSIONS Overall, these studies demonstrate that androgen-independent prostate cancer cell growth can be influenced by extracellular lipid levels and LDL-cholesterol availability and that uptake of extracellular cholesterol, through endocytosis of LDL-derived cholesterol and subsequent delivery and storage in the lipid droplet as cholesteryl esters, is required to support prostate cancer cell growth. This provides new insights into the relationship between extracellular cholesterol, intracellular cholesterol metabolism, and prostate cancer cell growth and the potential mechanisms linking hypercholesterolemia and more aggressive prostate cancer.
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Affiliation(s)
- Nikki L Raftopulos
- School of Medical Sciences, Charles Perkins Centre, Faculty of Medicine and Health, The University of Sydney, Sydney, New South Wales, Australia
| | - Tinashe C Washaya
- School of Medical Sciences, Charles Perkins Centre, Faculty of Medicine and Health, The University of Sydney, Sydney, New South Wales, Australia
| | - Andreas Niederprüm
- School of Pharmacy, Faculty of Medicine and Health, The University of Sydney, Sydney, New South Wales, Australia.,Faculty of Medicine, Ruprecht Karl University of Heidelberg, Baden-Wuerttemberg, Heidelberg, Germany
| | - Antonia Egert
- School of Pharmacy, Faculty of Medicine and Health, The University of Sydney, Sydney, New South Wales, Australia
| | - Mariam F Hakeem-Sanni
- School of Medical Sciences, Charles Perkins Centre, Faculty of Medicine and Health, The University of Sydney, Sydney, New South Wales, Australia
| | - Bianca Varney
- School of Medical Sciences, Charles Perkins Centre, Faculty of Medicine and Health, The University of Sydney, Sydney, New South Wales, Australia
| | - Atqiya Aishah
- School of Medical Sciences, Charles Perkins Centre, Faculty of Medicine and Health, The University of Sydney, Sydney, New South Wales, Australia
| | - Mariya L Georgieva
- School of Pharmacy, Faculty of Medicine and Health, The University of Sydney, Sydney, New South Wales, Australia
| | - Ellinor Olsson
- School of Medical Sciences, Charles Perkins Centre, Faculty of Medicine and Health, The University of Sydney, Sydney, New South Wales, Australia
| | - Diandra Z Dos Santos
- School of Medical Sciences, Charles Perkins Centre, Faculty of Medicine and Health, The University of Sydney, Sydney, New South Wales, Australia.,Biotechnology Program/RENORBIO, Health Sciences Center, Federal University of Espirito Santo, Vitoria, ES, Brazil
| | - Zeyad D Nassar
- Adelaide Medical School and Freemasons Centre for Male Health and Wellbeing, University of Adelaide, Adelaide, South Australia, Australia.,South Australian Health and Medical Research Institute, Adelaide, South Australia, Australia
| | - Blake J Cochran
- School of Medical Sciences, Faculty of Medicine, University of New South Wales, Sydney, New South Wales, Australia
| | - Shilpa R Nagarajan
- School of Medical Sciences, Charles Perkins Centre, Faculty of Medicine and Health, The University of Sydney, Sydney, New South Wales, Australia
| | - Meghna S Kakani
- School of Medical Sciences, Charles Perkins Centre, Faculty of Medicine and Health, The University of Sydney, Sydney, New South Wales, Australia
| | - Jordan F Hastings
- The Kinghorn Cancer Centre, Garvan Institute of Medical Research, Sydney, New South Wales, Australia
| | - David R Croucher
- The Kinghorn Cancer Centre, Garvan Institute of Medical Research, Sydney, New South Wales, Australia.,St Vincent's Hospital Clinical School, Faculty of Medicine, University of New South Wales, Sydney, New South Wales, Australia
| | - Kerry-Anne Rye
- School of Medical Sciences, Faculty of Medicine, University of New South Wales, Sydney, New South Wales, Australia
| | - Lisa M Butler
- Adelaide Medical School and Freemasons Centre for Male Health and Wellbeing, University of Adelaide, Adelaide, South Australia, Australia.,South Australian Health and Medical Research Institute, Adelaide, South Australia, Australia
| | - Thomas Grewal
- School of Pharmacy, Faculty of Medicine and Health, The University of Sydney, Sydney, New South Wales, Australia
| | - Andrew J Hoy
- School of Medical Sciences, Charles Perkins Centre, Faculty of Medicine and Health, The University of Sydney, Sydney, New South Wales, Australia.
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3
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Dong T, Sato S, Lyu J, Imachi H, Kobayashi T, Fukunaga K, Saheki T, Iwama H, Zhang G, Murao K. Treatment with 2-methoxyestradiol increases endothelial nitric oxide synthase activity via scavenger receptor class BI in human umbilical vein endothelial cells. Mol Hum Reprod 2021; 26:441-451. [PMID: 32333783 DOI: 10.1093/molehr/gaaa028] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2019] [Revised: 04/08/2020] [Accepted: 04/19/2020] [Indexed: 12/24/2022] Open
Abstract
Concentrations of 2-methoxyestradiol (2ME2), a principal metabolite of estradiol, are significantly lower in women with severe preeclampsia. Nitric oxide (NO) released by endothelial nitric oxide synthase (eNOS) plays an important role in regulating cardiovascular homeostasis. Importantly, high-density lipoprotein (HDL) stimulates eNOS activity via endothelial human scavenger receptor class B type I (hSR-BI/CLA-1). Here, we aimed to determine the effect of 2ME2 on hSR-BI/CLA-1 expression in human umbilical vein endothelial cells (HUVECs). hSR-BI/CLA-1 expression was measured by real-time PCR, western blotting and reporter gene assays; eNOS activity was assessed by the measurement of eNOS phosphorylation. Both the mRNA and protein concentrations of hSR-BI/CLA-1 were significantly increased by 2ME2 in HUVECs. 2ME2 also dose-dependently increased the transcriptional activity of the hSR-BI/CLA-1 promoter. The effect of 2ME2 treatment on the promoter activity of hSR-BI/CLA-1 was abrogated by treatment with LY294002, a specific inhibitor of phosphatidylinositol 3-kinase, as was the increase in HDL-induced eNOS activation. Notably, constitutively active Akt increased the activity of the hSR-BI/CLA-1 promoter, whereas dominant-negative Akt abolished the effect of 2ME2 treatment on hSR-BI/CLA-1 promoter activity. The nuclear Sp1 protein concentration was significantly increased by exposure to 2ME2 and Sp1 overexpression increased the promoter activity of the hSR-BI/CLA gene. Furthermore, knockdown of Sp1 inhibited the effect of 2ME2 treatment on hSR-BI/CLA-1 protein expression. These results indicate that 2ME2 treatment increases HDL-dependent eNOS phosphorylation by upregulating endothelial hSR-BI/CLA-1 expression, suggesting that 2ME2 has a potential therapeutic value in the treatment of preeclampsia.
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Affiliation(s)
- Tao Dong
- Department of Endocrinology and Metabolism, Faculty of Medicine, Kagawa University, Kagawa 761-0793, Japan
| | - Seisuke Sato
- Department of Endocrinology and Metabolism, Faculty of Medicine, Kagawa University, Kagawa 761-0793, Japan
| | - Jingya Lyu
- Department of Endocrinology and Metabolism, Faculty of Medicine, Kagawa University, Kagawa 761-0793, Japan
| | - Hitomi Imachi
- Department of Endocrinology and Metabolism, Faculty of Medicine, Kagawa University, Kagawa 761-0793, Japan
| | - Toshihiro Kobayashi
- Department of Endocrinology and Metabolism, Faculty of Medicine, Kagawa University, Kagawa 761-0793, Japan
| | - Kensaku Fukunaga
- Department of Endocrinology and Metabolism, Faculty of Medicine, Kagawa University, Kagawa 761-0793, Japan
| | - Takanobu Saheki
- Department of Endocrinology and Metabolism, Faculty of Medicine, Kagawa University, Kagawa 761-0793, Japan
| | - Hisakazu Iwama
- Life Science Research Center, Kagawa University, Kagawa 761-0793, Japan
| | - Guoxing Zhang
- Department of Physiology and Neuroscience, Medical College of Soochow University, Suzhou 215123, China
| | - Koji Murao
- Department of Endocrinology and Metabolism, Faculty of Medicine, Kagawa University, Kagawa 761-0793, Japan
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Li H, Yu XH, Ou X, Ouyang XP, Tang CK. Hepatic cholesterol transport and its role in non-alcoholic fatty liver disease and atherosclerosis. Prog Lipid Res 2021; 83:101109. [PMID: 34097928 DOI: 10.1016/j.plipres.2021.101109] [Citation(s) in RCA: 76] [Impact Index Per Article: 25.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Revised: 05/31/2021] [Accepted: 06/02/2021] [Indexed: 12/12/2022]
Abstract
Non-alcoholic fatty liver disease (NAFLD) is a quickly emerging global health problem representing the most common chronic liver disease in the world. Atherosclerotic cardiovascular disease represents the leading cause of mortality in NAFLD patients. Cholesterol metabolism has a crucial role in the pathogenesis of both NAFLD and atherosclerosis. The liver is the major organ for cholesterol metabolism. Abnormal hepatic cholesterol metabolism not only leads to NAFLD but also drives the development of atherosclerotic dyslipidemia. The cholesterol level in hepatocytes reflects the dynamic balance between endogenous synthesis, uptake, esterification, and export, a process in which cholesterol is converted to neutral cholesteryl esters either for storage in cytosolic lipid droplets or for secretion as a major constituent of plasma lipoproteins, including very-low-density lipoproteins, chylomicrons, high-density lipoproteins, and low-density lipoproteins. In this review, we describe decades of research aimed at identifying key molecules and cellular players involved in each main aspect of hepatic cholesterol metabolism. Furthermore, we summarize the recent advances regarding the biological processes of hepatic cholesterol transport and its role in NAFLD and atherosclerosis.
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Affiliation(s)
- Heng Li
- Institute of Cardiovascular Disease, Key Laboratory for Arteriosclerology of Hunan Province, Hunan International Scientific and Technological Cooperation Base of Arteriosclerotic Disease, Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, Hengyang Medical College, University of South China, Hengyang, Hunan 421001, China
| | - Xiao-Hua Yu
- Institute of Clinical Medicine, The Second Affiliated Hospital of Hainan Medical University, Haikou, Hainan 460106, China
| | - Xiang Ou
- Department of Endocrinology, the First Hospital of Changsha, Changsha, Hunan 410005, China
| | - Xin-Ping Ouyang
- Department of Physiology, Institute of Neuroscience Research, Hengyang Key Laboratory of Neurodegeneration and Cognitive Impairment, Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, Hengyang Medical College, University of South China, Hengyang, Hunan 421001, China.
| | - Chao-Ke Tang
- Institute of Cardiovascular Disease, Key Laboratory for Arteriosclerology of Hunan Province, Hunan International Scientific and Technological Cooperation Base of Arteriosclerotic Disease, Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, Hengyang Medical College, University of South China, Hengyang, Hunan 421001, China.
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5
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Guo W, Zhang H, Yang A, Ma P, Sun L, Deng M, Mao C, Xiong J, Sun J, Wang N, Ma S, Nie L, Jiang Y. Homocysteine accelerates atherosclerosis by inhibiting scavenger receptor class B member1 via DNMT3b/SP1 pathway. J Mol Cell Cardiol 2020; 138:34-48. [PMID: 31733201 DOI: 10.1016/j.yjmcc.2019.11.145] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/11/2019] [Accepted: 11/04/2019] [Indexed: 12/25/2022]
Abstract
Homocysteine (Hcy) is an independent risk factor for atherosclerosis, which is characterized by lipid accumulation in the atherosclerotic plaque. Increasing evidence supports that as the main receptor of high-density lipoprotein, scavenger receptor class B member 1 (SCARB1) is protective against atherosclerosis. However, the underlying mechanism regarding it in Hcy-mediated atherosclerosis remains unclear. Here, we found the remarkable inhibition of SCARB1 expression in atherosclerotic plaque and Hcy-treated foam cells, whereas overexpression of SCARB1 can suppress lipid accumulation in foam cells following Hcy treatment. Analysis of SCARB1 promoter showed that no significant change of methylation level was observed both in vivo and in vitro under Hcy treatment. Moreover, it was found that the negative regulation of DNMT3b on SCARB1 was due to the decreased recruitment of SP1 to SCARB1 promoter. Thus, we concluded that inhibition of SCARB1 expression induced by DNMT3b at least partly accelerated Hcy-mediated atherosclerosis through promoting lipid accumulation in foam cells, which was attributed to the decreased binding of SP1 to SCARB1 promoter. In our point, these findings will provide novel insight into an epigenetic mechanism for atherosclerosis.
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Affiliation(s)
- Wei Guo
- Department of Pathology and Pathophysiology, School of Basic Medical Sciences, Ningxia Medical University, Yinchuan, China; Ningxia Key Laboratory of Vascular Injury and Repair Research, Yinchuan, China; NHC Key Laboratory of Metabolic Cardiovascular Diseases Research (NingXia Medical University), Yinchuan, China
| | - Huiping Zhang
- Prenatal Diagnosis Center of Ningxia Medical University General Hospital, Yinchuan, China
| | - Anning Yang
- Department of Pathology and Pathophysiology, School of Basic Medical Sciences, Ningxia Medical University, Yinchuan, China; Ningxia Key Laboratory of Vascular Injury and Repair Research, Yinchuan, China; NHC Key Laboratory of Metabolic Cardiovascular Diseases Research (NingXia Medical University), Yinchuan, China
| | - Pengjun Ma
- Department of Pathology and Pathophysiology, School of Basic Medical Sciences, Ningxia Medical University, Yinchuan, China; Ningxia Key Laboratory of Vascular Injury and Repair Research, Yinchuan, China; NHC Key Laboratory of Metabolic Cardiovascular Diseases Research (NingXia Medical University), Yinchuan, China
| | - Lei Sun
- Department of Pathology and Pathophysiology, School of Basic Medical Sciences, Ningxia Medical University, Yinchuan, China; Ningxia Key Laboratory of Vascular Injury and Repair Research, Yinchuan, China; NHC Key Laboratory of Metabolic Cardiovascular Diseases Research (NingXia Medical University), Yinchuan, China
| | - Mei Deng
- Department of Pathology and Pathophysiology, School of Basic Medical Sciences, Ningxia Medical University, Yinchuan, China; Ningxia Key Laboratory of Vascular Injury and Repair Research, Yinchuan, China; NHC Key Laboratory of Metabolic Cardiovascular Diseases Research (NingXia Medical University), Yinchuan, China
| | - Caiyan Mao
- Department of Pathology and Pathophysiology, School of Basic Medical Sciences, Ningxia Medical University, Yinchuan, China; Ningxia Key Laboratory of Vascular Injury and Repair Research, Yinchuan, China; NHC Key Laboratory of Metabolic Cardiovascular Diseases Research (NingXia Medical University), Yinchuan, China
| | - Jiantuan Xiong
- College of Pharmacy, Ningxia Medical University, Yinchuan, China
| | - Jianmin Sun
- Department of Pathogenic Biology and Immunology, School of Basic Medical Sciences, Ningxia Medical University, Yinchuan, China
| | - Nan Wang
- Department of Pathology and Pathophysiology, School of Basic Medical Sciences, Ningxia Medical University, Yinchuan, China; Ningxia Key Laboratory of Vascular Injury and Repair Research, Yinchuan, China
| | - Shengchao Ma
- Department of Pathology and Pathophysiology, School of Basic Medical Sciences, Ningxia Medical University, Yinchuan, China; Ningxia Key Laboratory of Vascular Injury and Repair Research, Yinchuan, China; NHC Key Laboratory of Metabolic Cardiovascular Diseases Research (NingXia Medical University), Yinchuan, China
| | - Lihong Nie
- Department of Physiology, School of Basic Medical Sciences, Ningxia Medical University, Yinchuan, China
| | - Yideng Jiang
- Department of Pathology and Pathophysiology, School of Basic Medical Sciences, Ningxia Medical University, Yinchuan, China; Ningxia Key Laboratory of Vascular Injury and Repair Research, Yinchuan, China; NHC Key Laboratory of Metabolic Cardiovascular Diseases Research (NingXia Medical University), Yinchuan, China.
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Zhou J, Zhu C, Luo H, Shen L, Gong J, Wu Y, Magdalou J, Chen L, Guo Y, Wang H. Two intrauterine programming mechanisms of adult hypercholesterolemia induced by prenatal nicotine exposure in male offspring rats. FASEB J 2018; 33:1110-1123. [PMID: 30113880 DOI: 10.1096/fj.201800172r] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Epidemiologic studies showed that low birth weight is associated with high cholesterol and an increased risk of cardiovascular diseases in adulthood. This study aimed to elucidate the intrauterine programming mechanisms of adult hypercholesterolemia. The results showed that prenatal nicotine exposure (PNE) caused intrauterine growth retardation and hypercholesterolemia in male adult offspring rats. Hepatic cholesterol synthesis and output were deceased in utero but increased in adults; hepatic reverse cholesterol transport (RCT) persistently deceased before and after birth. Meanwhile, PNE elevated serum corticosterone level and decreased hepatic IGF1 pathway activity in male fetuses, whereas converse changes were observed in male adults. The chronic stress model and cortisol-treated HepG2 cells verified that excessive glucocorticoid (GC)-induced GC-IGF1 axis programming enhanced hepatic cholesterol synthesis and output. In addition, PNE decreased the expression of specific protein 1 and P300 enrichment and H3K27 acetylation at the promoter region of genes responsible for RCT both in fetal and adult, male livers and reduced expression of those genes, similar alterations were also confirmed in cortisol-treated HepG2 cells, suggesting that excessive GC-related programming induced continuous RCT reduction by epigenetic modification. Taken together, the "2-programming" approach discussed above may ultimately contribute to the development of hypercholesterolemia in male adult offspring.-Zhou, J., Zhu, C., Luo, H., Shen, L., Gong, J., Wu, Y., Magdalou, J., Chen, L., Guo, Y., Wang, H. Two intrauterine programming mechanisms of adult hypercholesterolemia induced by prenatal nicotine exposure in male offspring rats.
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Affiliation(s)
- Jin Zhou
- Department of Pharmacology, School of Basic Medical Sciences, Wuhan University, Wuhan, China
| | - Chunyan Zhu
- Department of Pharmacology, School of Basic Medical Sciences, Wuhan University, Wuhan, China
| | - Hanwen Luo
- Department of Orthopedic Surgery, Zhongnan Hospital, Wuhan University, Wuhan, China
| | - Lang Shen
- Department of Pharmacology, School of Basic Medical Sciences, Wuhan University, Wuhan, China
| | - Jun Gong
- Department of Pharmacology, School of Basic Medical Sciences, Wuhan University, Wuhan, China
| | - Yimeng Wu
- Department of Pharmacology, School of Basic Medical Sciences, Wuhan University, Wuhan, China
| | - Jacques Magdalou
- Unité Mixte de Recherche (UMR) 7561, Centre National de la Recherche Scientifique (CNRS), Nancy Université, Vandoeuvre-lès-Nancy, France
| | - Liaobin Chen
- Department of Orthopedic Surgery, Zhongnan Hospital, Wuhan University, Wuhan, China.,Hubei Provincial Key Laboratory of Developmentally Originated Disease, Wuhan, China
| | - Yu Guo
- Department of Pharmacology, School of Basic Medical Sciences, Wuhan University, Wuhan, China.,Hubei Provincial Key Laboratory of Developmentally Originated Disease, Wuhan, China
| | - Hui Wang
- Department of Pharmacology, School of Basic Medical Sciences, Wuhan University, Wuhan, China.,Hubei Provincial Key Laboratory of Developmentally Originated Disease, Wuhan, China
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7
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Luo W, He Y, Ding F, Nie X, Li XL, Song HL, Li GX. Study on the levels of glycosylated lipoprotein in patients with coronary artery atherosclerosis. J Clin Lab Anal 2018; 33:e22650. [PMID: 30101436 DOI: 10.1002/jcla.22650] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2018] [Revised: 07/20/2018] [Accepted: 07/22/2018] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND The main risk factors for atherosclerosis patients are not fully explicated. The aim of this study was to analyze the levels of blood lipid and glycosylated lipoprotein in patients with coronary artery atherosclerosis and healthy individuals and to study the relationship between the glycosylated lipoprotein and atherosclerosis. METHODS The study involved 200 patients diagnosed with myocardial infarction caused by coronary atherosclerosis as case group and 230 healthy individuals as control group. We analyzed and contrasted the levels of blood lipid and glycosylated lipoprotein between the different groups. In addition, we investigated the correlation between glycosylated low-density lipoprotein (G-LDL) and glucose levels. RESULTS There is no statistical difference between the level of TG in case group and control group. The level of CHOL, HDL-C, and LDL-C in case group is significantly lower than that in control group (3.90 [3.23, 4.42] vs 5.16 [4.86, 5.77] [mmol/L]; 1.09 [0.83, 1.38] vs 1.46 [1.15, 1.80] [mmol/L]; 2.22 [1.68, 2.81] vs 2.95 [2.60, 3.27] [mmol/L]) (P < 0.05). The level of GLU, HbA1c, G-HDL, and G-LDL in case group is significantly higher than that in control group (7.10 [5.68, 9.27] vs 4.84 [4.68, 5.07] [mmol/L]; 6.8 [6.3, 7.4] vs 5.9 [5.6, 6.1] [%]; 30.08 [25.04, 40.17] vs 22.95 [18.14, 27.06] [ng/mL], 6.26 [4.95, 7.50] vs 3.61 [2.66, 5.15] [ng/mL]) (p < 0.05). The level of G-LDL in patients with coronary atherosclerosis was relevant with the level of GLU and HbA1c (r = 0.625, 0.706, P < 0.05), and there was no relevance with LDL-C (r = 0.331, P > 0.05). CONCLUSION Hyperlipidemia is not an important cause of coronary atherosclerosis. High glucose levels and glycosylated lipoprotein are of high importance in the development and progression of coronary atherosclerosis.
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Affiliation(s)
- Wei Luo
- Department of Laboratory Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Yong He
- Department of Laboratory Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Fei Ding
- Department of Laboratory Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Xin Nie
- Department of Laboratory Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Xiao-Ling Li
- Department of Laboratory Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Hao-Lan Song
- Department of Laboratory Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Gui-Xing Li
- Department of Laboratory Medicine, West China Hospital, Sichuan University, Chengdu, China
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8
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NHERF1 and NHERF2 regulation of SR-B1 stability via ubiquitination and proteasome degradation. Biochem Biophys Res Commun 2017; 490:1168-1175. [DOI: 10.1016/j.bbrc.2017.06.175] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2017] [Accepted: 06/28/2017] [Indexed: 02/08/2023]
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