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Qin P, He C, Ye P, Li Q, Cai C, Li Y. PKCδ regulates the vascular biology in diabetic atherosclerosis. Cell Commun Signal 2023; 21:330. [PMID: 37974282 PMCID: PMC10652453 DOI: 10.1186/s12964-023-01361-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2023] [Accepted: 10/20/2023] [Indexed: 11/19/2023] Open
Abstract
Diabetes mellitus, known for its complications, especially vascular complications, is becoming a globally serious social problem. Atherosclerosis has been recognized as a common vascular complication mechanism in diabetes. The diacylglycerol (DAG)-protein kinase C (PKC) pathway plays an important role in atherosclerosis. PKCs can be divided into three subgroups: conventional PKCs (cPKCs), novel PKCs (nPKCs), and atypical PKCs (aPKCs). The aim of this review is to provide a comprehensive overview of the role of the PKCδ pathway, an isoform of nPKC, in regulating the function of endothelial cells, vascular smooth muscle cells, and macrophages in diabetic atherosclerosis. In addition, potential therapeutic targets regarding the PKCδ pathway are summarized. Video Abstract.
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Affiliation(s)
- Peiliang Qin
- Department of Vascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Changhuai He
- Department of Vascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Pin Ye
- Department of Vascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Qin Li
- Department of Vascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Chuanqi Cai
- Department of Vascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China.
| | - Yiqing Li
- Department of Vascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China.
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2
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Wei B, Li Y, Ao M, Shao W, Wang K, Rong T, Zhou Y, Chen Y. Ganglioside GM3-Functionalized Reconstituted High-Density Lipoprotein (GM3-rHDL) as a Novel Nanocarrier Enhances Antiatherosclerotic Efficacy of Statins in apoE -/- C57BL/6 Mice. Pharmaceutics 2022; 14:pharmaceutics14112534. [PMID: 36432725 PMCID: PMC9698139 DOI: 10.3390/pharmaceutics14112534] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Revised: 11/15/2022] [Accepted: 11/17/2022] [Indexed: 11/22/2022] Open
Abstract
Previously, we found that exogenous ganglioside GM3 had an antiatherosclerotic efficacy and that its antiatherosclerotic efficacy could be enhanced by reconstituted high-density lipoprotein (rHDL). In this study, we hypothesized that GM3-functionalized rHDL (i.e., GM3-rHDL) as a nanocarrier can promote the efficacy of traditional antiatherosclerotic drugs (e.g., statins). To test this hypothesis, lovastatin (LT) was used as a representative of statins, and LT-loaded GM3-rHDL nanoparticle (LT-GM3-rHDL or LT@GM3-rHDL; a mean size of ~142 nm) and multiple controls (e.g., GM3-rHDL without LT, LT-loaded rHDL or LT-rHDL, and other nanoparticles) were prepared. By using two different microsphere-based methods, the presences of apolipoprotein A-I (apoA-I) and/or GM3 in nanoparticles and the apoA-I-mediated macrophage-targeting ability of apoA-I/rHDL-containing nanoparticles were verified in vitro. Moreover, LT-GM3-rHDL nanoparticle had a slowly sustained LT release in vitro and the strongest inhibitory effect on the foam cell formation of macrophages (a key event of atherogenesis). After single administration of rHDL-based nanoparticles, a higher LT concentration was detected shortly in the atherosclerotic plaques of apoE-/- mice than non-rHDL-based nanoparticles, suggesting the in vivo plaque-targeting ability of apoA-I/rHDL-containing nanoparticles. Finally, among all nanoparticles LT-GM3-rHDL induced the largest decreases in the contents of blood lipids and in the areas of atherosclerotic plaques at various aortic locations in apoE-/- mice fed a high-fat diet for 12 weeks, supporting that LT-GM3-rHDL has the best in vivo antiatherosclerotic efficacy among the tested nanoparticles. Our data imply that GM3-functionalized rHDL (i.e., GM3-rHDL) can be utilized as a novel nanocarrier to enhance the efficacy of traditional antiatherosclerotic drugs (e.g., statins).
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Affiliation(s)
- Bo Wei
- College of Life Sciences, Nanchang University, Nanchang 330031, China
| | - Yuanfang Li
- Jiangxi Key Laboratory for Microscale Interdisciplinary Study, Institute for Advanced Study, Nanchang University, Nanchang 330031, China
| | - Meiying Ao
- School of Chinese Medicine & Life Science, Jiangxi University of Chinese Medicine, Nanchang 330025, China
| | - Wenxiang Shao
- School of Chinese Medicine & Life Science, Jiangxi University of Chinese Medicine, Nanchang 330025, China
| | - Kun Wang
- Jiangxi Key Laboratory for Microscale Interdisciplinary Study, Institute for Advanced Study, Nanchang University, Nanchang 330031, China
| | - Tong Rong
- College of Life Sciences, Nanchang University, Nanchang 330031, China
- Jiangxi Key Laboratory for Microscale Interdisciplinary Study, Institute for Advanced Study, Nanchang University, Nanchang 330031, China
| | - Yun Zhou
- College of Life Sciences, Nanchang University, Nanchang 330031, China
- Jiangxi Key Laboratory for Microscale Interdisciplinary Study, Institute for Advanced Study, Nanchang University, Nanchang 330031, China
| | - Yong Chen
- College of Life Sciences, Nanchang University, Nanchang 330031, China
- Jiangxi Key Laboratory for Microscale Interdisciplinary Study, Institute for Advanced Study, Nanchang University, Nanchang 330031, China
- Correspondence: or ; Tel./Fax: +86-(791)-83969963
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3
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Rong T, Wei B, Ao M, Zhao H, Li Y, Zhang Y, Qin Y, Zhou J, Zhou F, Chen Y. Enhanced Anti-Atherosclerotic Efficacy of pH-Responsively Releasable Ganglioside GM3 Delivered by Reconstituted High-Density Lipoprotein. Int J Mol Sci 2021; 22:ijms222413624. [PMID: 34948420 PMCID: PMC8704253 DOI: 10.3390/ijms222413624] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Revised: 12/12/2021] [Accepted: 12/13/2021] [Indexed: 11/16/2022] Open
Abstract
Recently, the atheroprotective role of endogenous GM3 and an atherogenesis-inhibiting effect of exogenous GM3 suggested a possibility of exogenous GM3 being recruited as an anti-atherosclerotic drug. This study seeks to endow exogenous GM3 with atherosclerotic targetability via reconstituted high-density lipoprotein (rHDL), an atherosclerotic targeting drug nanocarrier. Unloaded rHDL, rHDL loaded with exogenous GM3 at a low concentration (GM3L-rHDL), and rHDL carrying GM3 at a relatively high concentration (GM3H-rHDL) were prepared and characterized. The inhibitory effect of GM3-rHDL on lipid deposition in macrophages was confirmed, and GM3-rHDL did not affect the survival of red blood cells. In vivo experiments using ApoE-/- mice fed a high fat diet further confirmed the anti-atherosclerotic efficacy of exogenous GM3 and demonstrated that GM3 packed in HDL nanoparticles (GM3-rHDL) has an enhanced anti-atherosclerotic efficacy and a reduced effective dose of GM3. Then, the macrophage- and atherosclerotic plaque-targeting abilities of GM3-rHD, most likely via the interaction of ApoA-I on GM3-rHDL with its receptors (e.g., SR-B1) on cells, were certified via a microsphere-based method and an aortic fragment-based method, respectively. Moreover, we found that solution acidification enhanced GM3 release from GM3-rHDL nanoparticles, implying the pH-responsive GM3 release when GM3-rHDL enters the acidic atherosclerotic plaques from the neutral blood. The rHDL-mediated atherosclerotic targetability and pH-responsive GM3 release of GM3-rHDL enhanced the anti-atherosclerotic efficacy of exogenous GM3. The development of the GM3-rHDL nanoparticle may help with the application of exogenous GM3 as a clinical drug. Moreover, the data imply that the GM3-rHDL nanoparticle has the potential of being recruited as a drug nanocarrier with atherosclerotic targetability and enhanced anti-atherosclerotic efficacy.
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Affiliation(s)
- Tong Rong
- College of Life Sciences, Nanchang University, 999 Xuefu Ave, Honggutan District, Nanchang 330031, China; (T.R.); (B.W.); (Y.Q.); (F.Z.)
- Jiangxi Key Laboratory for Microscale Interdisciplinary Study, Institute for Advanced Study, Nanchang University, Nanchang 330031, China; (H.Z.); (Y.L.); (Y.Z.); (J.Z.)
| | - Bo Wei
- College of Life Sciences, Nanchang University, 999 Xuefu Ave, Honggutan District, Nanchang 330031, China; (T.R.); (B.W.); (Y.Q.); (F.Z.)
| | - Meiying Ao
- School of Basic Medical Sciences, Jiangxi University of Chinese Medicine, Nanchang 330025, China;
| | - Haonan Zhao
- Jiangxi Key Laboratory for Microscale Interdisciplinary Study, Institute for Advanced Study, Nanchang University, Nanchang 330031, China; (H.Z.); (Y.L.); (Y.Z.); (J.Z.)
| | - Yuanfang Li
- Jiangxi Key Laboratory for Microscale Interdisciplinary Study, Institute for Advanced Study, Nanchang University, Nanchang 330031, China; (H.Z.); (Y.L.); (Y.Z.); (J.Z.)
| | - Yang Zhang
- Jiangxi Key Laboratory for Microscale Interdisciplinary Study, Institute for Advanced Study, Nanchang University, Nanchang 330031, China; (H.Z.); (Y.L.); (Y.Z.); (J.Z.)
| | - Ying Qin
- College of Life Sciences, Nanchang University, 999 Xuefu Ave, Honggutan District, Nanchang 330031, China; (T.R.); (B.W.); (Y.Q.); (F.Z.)
- Jiangxi Key Laboratory for Microscale Interdisciplinary Study, Institute for Advanced Study, Nanchang University, Nanchang 330031, China; (H.Z.); (Y.L.); (Y.Z.); (J.Z.)
| | - Jinhua Zhou
- Jiangxi Key Laboratory for Microscale Interdisciplinary Study, Institute for Advanced Study, Nanchang University, Nanchang 330031, China; (H.Z.); (Y.L.); (Y.Z.); (J.Z.)
| | - Fenfen Zhou
- College of Life Sciences, Nanchang University, 999 Xuefu Ave, Honggutan District, Nanchang 330031, China; (T.R.); (B.W.); (Y.Q.); (F.Z.)
- Jiangxi Key Laboratory for Microscale Interdisciplinary Study, Institute for Advanced Study, Nanchang University, Nanchang 330031, China; (H.Z.); (Y.L.); (Y.Z.); (J.Z.)
| | - Yong Chen
- College of Life Sciences, Nanchang University, 999 Xuefu Ave, Honggutan District, Nanchang 330031, China; (T.R.); (B.W.); (Y.Q.); (F.Z.)
- Jiangxi Key Laboratory for Microscale Interdisciplinary Study, Institute for Advanced Study, Nanchang University, Nanchang 330031, China; (H.Z.); (Y.L.); (Y.Z.); (J.Z.)
- Correspondence: ; Tel./Fax: +86-791-8396-9963
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Montgomery MK, Taddese AZ, Bayliss J, Nie S, Williamson NA, Watt MJ. Hexosaminidase A (HEXA) regulates hepatic sphingolipid and lipoprotein metabolism in mice. FASEB J 2021; 35:e22046. [PMID: 34800307 DOI: 10.1096/fj.202101186r] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Revised: 10/29/2021] [Accepted: 11/01/2021] [Indexed: 02/03/2023]
Abstract
Hexosaminidase A (HexA), a heterodimer consisting of HEXA and HEXB, converts the ganglioside sphingolipid GM2 to GM3 by removing a terminal N-acetyl-d-galactosamine. HexA enzyme deficiency in humans leads to GM2 accumulation in cells, particularly in neurons, and is associated with neurodegeneration. While HexA and sphingolipid metabolism have been extensively investigated in the context of neuronal lipid metabolism, little is known about the metabolic impact of HexA and ganglioside degradation in other tissues. Here, we focussed on the role of HexA in the liver, which is a major regulator of systemic lipid metabolism. We find that hepatic Hexa expression is induced by lipid availability and increased in the presence of hepatic steatosis, which is associated with increased hepatic GM3 content. To assess the impact of HEXA on hepatic lipid metabolism, we used an adeno-associated virus to overexpress HEXA in the livers of high-fat diet fed mice. HEXA overexpression was associated with increased hepatic GM3 content and increased expression of enzymes involved in the degradation of glycated sphingolipids, ultimately driving sphingomyelin accumulation in the liver. In addition, HEXA overexpression led to substantial proteome remodeling in cell surface lipid rafts, which was associated with increased VLDL processing and secretion, hypertriglyceridemia and ectopic lipid accumulation in peripheral tissues. This study established an important role of HEXA in modulating hepatic sphingolipid and lipoprotein metabolism.
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Affiliation(s)
- Magdalene K Montgomery
- Department of Anatomy and Physiology, The University of Melbourne, Melbourne, Victoria, Australia
| | - Amanuiel Z Taddese
- Department of Anatomy and Physiology, The University of Melbourne, Melbourne, Victoria, Australia
| | - Jacqueline Bayliss
- Department of Anatomy and Physiology, The University of Melbourne, Melbourne, Victoria, Australia
| | - Shuai Nie
- Melbourne Mass Spectrometry and Proteomics Facility, Bio21 Molecular Science & Biotechnology Institute, The University of Melbourne, Melbourne, Victoria, Australia
| | - Nicholas A Williamson
- Melbourne Mass Spectrometry and Proteomics Facility, Bio21 Molecular Science & Biotechnology Institute, The University of Melbourne, Melbourne, Victoria, Australia
| | - Matthew J Watt
- Department of Anatomy and Physiology, The University of Melbourne, Melbourne, Victoria, Australia
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Oishi K, Miyazaki M, Takase R, Chigwechokha PK, Komatsu M, Shiozaki K. Regulation of triglyceride metabolism in medaka (Oryzias latipes) hepatocytes by Neu3a sialidase. FISH PHYSIOLOGY AND BIOCHEMISTRY 2020; 46:563-574. [PMID: 31792756 DOI: 10.1007/s10695-019-00730-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2019] [Accepted: 11/01/2019] [Indexed: 06/10/2023]
Abstract
Fish store triglycerides (TGs) in the liver, muscle, and adipose tissue and TGs constitute an energy source upon metabolic demand. The liver generally plays important roles in lipid metabolism. Recent studies have suggested the possibility of hepatic lipid metabolic regulation by ganglioside in mammals; however, ganglioside-mediated regulation of lipid metabolism is unclear in fish. This study aimed to clarify the role of ganglioside in fish TG metabolism, with particular reference to Neu3a, a ganglioside-specific sialidase expressed in the fish liver. Under fasting conditions, there was a decrease in hepatic TG contents, and neu3a mRNA level was significantly up-regulated in the medaka liver. To determine the role of Neu3a in hepatic lipid metabolism, Neu3a stable transfectants were generated using fish liver Hepa-T1 cells. After treating Neu3a cells with oleic acid, reduction of TG was detected in comparison with the mock cells. Furthermore, lipase activity was greater in Neu3a cells than in mock cells. To examine which ganglioside regulates these events, alterations of ganglioside composition in Neu3a cells were analyzed. Neu3a cells exhibited increased level of lactosylceramide (LacCer), a Neu3 enzymatic product originating from GM3. In addition, exposure of LacCer toward Hepa-T1 cells resulted in an increase of neutral lipase activity. The present results suggest that Neu3a up-regulation in medaka under fasting condition accelerates hepatic TG degradation for energy production via GM3 desialylation.
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Affiliation(s)
- Kazuki Oishi
- Faculty of Fisheries, Kagoshima University, Kagoshima, 890-0056, Japan
- The United Graduate School of Agricultural Sciences, Kagoshima University, 4-50-20 Shimoarata, Kagoshima, 890-0056, Japan
| | - Mina Miyazaki
- Faculty of Fisheries, Kagoshima University, Kagoshima, 890-0056, Japan
| | - Ryo Takase
- Faculty of Fisheries, Kagoshima University, Kagoshima, 890-0056, Japan
| | | | - Masaharu Komatsu
- Faculty of Fisheries, Kagoshima University, Kagoshima, 890-0056, Japan
- The United Graduate School of Agricultural Sciences, Kagoshima University, 4-50-20 Shimoarata, Kagoshima, 890-0056, Japan
| | - Kazuhiro Shiozaki
- Faculty of Fisheries, Kagoshima University, Kagoshima, 890-0056, Japan.
- The United Graduate School of Agricultural Sciences, Kagoshima University, 4-50-20 Shimoarata, Kagoshima, 890-0056, Japan.
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6
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Ha SH, Kwak CH, Park JY, Abekura F, Lee YC, Kim JS, Chung TW, Kim CH. 3'-sialyllactose targets cell surface protein, SIGLEC-3, and induces megakaryocyte differentiation and apoptosis by lipid raft-dependent endocytosis. Glycoconj J 2020; 37:187-200. [PMID: 31900723 DOI: 10.1007/s10719-019-09902-1] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2019] [Revised: 11/11/2019] [Accepted: 11/26/2019] [Indexed: 12/27/2022]
Abstract
3'-sialyllactose is one of the abundant components in human milk oligosaccharides (HMOs) that protect infants from various viral infections in early stages of immune system development. 3SL is a combination of lactose and sialic acid. Most sialic acids are widely expressed in animal cells and they bind to siglec proteins. In this study, we demonstrate that 3SL specifically binds to CD33. It induces megakaryocyte differentiation and subsequent apoptosis by targeting cell surface protein siglec-3 (CD33) in human chronic myeloid leukemia K562 cells. The 3SL-bound CD33 was internalized to the cytosol via caveolae-dependent endocytosis. At the molecular level, 3SL-bound CD33 recruits the suppressor of cytokine signaling 3 (SOCS3) and SH2 domain-containing protein tyrosine phosphatase 1 (SHP1). SOCS3 is degraded with CD33 by proteasome degradation, while SHP-1 activates extracellular signal-regulated kinase (ERK) to induce megakaryocytic differentiation and subsequent apoptosis. The present study, therefore, suggests that 3SL is a potential anti-leukemia agent affecting differentiation and apoptosis.
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Affiliation(s)
- Sun-Hyung Ha
- Molecular and Cellular Glycobiology Unit, Department of Biological Sciences, SungKyunKwan University, 300 Chunchun-Dong, Jangan-Gu, Suwon City, Kyunggi-Do, 440-746, South Korea
| | - Choong-Hwan Kwak
- School of Korean Medicine, Healthy Aging Korean Medical Research Center, Pusan National University, Yangsan, Gyeongsangnam-do, 50612, Republic of Korea
| | - Jun-Young Park
- Molecular and Cellular Glycobiology Unit, Department of Biological Sciences, SungKyunKwan University, 300 Chunchun-Dong, Jangan-Gu, Suwon City, Kyunggi-Do, 440-746, South Korea
| | - Fukushi Abekura
- Molecular and Cellular Glycobiology Unit, Department of Biological Sciences, SungKyunKwan University, 300 Chunchun-Dong, Jangan-Gu, Suwon City, Kyunggi-Do, 440-746, South Korea
| | - Young-Choon Lee
- Faculty of Medicinal Biotechnology, Dong-A University, Busan, Republic of Korea
| | - Jong-Suk Kim
- Department of Biochemistry, Institute for Medical Sciences, Chonbuk National University Medical School, 567 Baekje-daero, Deokjin-gu, Jeonju, 54896, South Korea
| | - Tae-Wook Chung
- School of Korean Medicine, Healthy Aging Korean Medical Research Center, Pusan National University, Yangsan, Gyeongsangnam-do, 50612, Republic of Korea.
| | - Cheorl-Ho Kim
- Molecular and Cellular Glycobiology Unit, Department of Biological Sciences, SungKyunKwan University, 300 Chunchun-Dong, Jangan-Gu, Suwon City, Kyunggi-Do, 440-746, South Korea.
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Le Barz M, Boulet MM, Calzada C, Cheillan D, Michalski MC. Alterations of endogenous sphingolipid metabolism in cardiometabolic diseases: Towards novel therapeutic approaches. Biochimie 2019; 169:133-143. [PMID: 31614170 DOI: 10.1016/j.biochi.2019.10.003] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2019] [Accepted: 10/08/2019] [Indexed: 12/16/2022]
Abstract
The increasing prevalence of obesity and metabolic diseases is a worldwide public health concern, and the advent of new analytical technologies has made it possible to highlight the involvement of some molecules, such as sphingolipids (SL), in their pathophysiology. SL are constituents of cell membranes, lipoproteins and lipid droplets (LD), and are now considered as bioactive molecules. Indeed, growing evidence suggests that SL, characterized by diverse families and species, could represent one of the main regulators of lipid metabolism. There is an increasing amount of data reporting that plasma SL profile is altered in metabolic diseases. However, less is known about SL metabolism dysfunction in cells and tissues and how it may impact the lipoprotein metabolism, its functionality and composition. In cardiometabolic pathologies, the link between serum SL concentrations and alterations of their metabolism in various organs and LD is still unclear. Pharmacological approaches have been developed in order to activate or inhibit specific key enzymes of the SL metabolism, and to positively modulate SL profile or related metabolic pathways. Nevertheless, little is known about the long-term impact of such approaches in humans and the current literature still focuses on the decomposition of the different parts of this complex system rather than performing an integrated analysis of the whole SL metabolism. In addition, since SL can be provided from exogenous sources, it is also of interest to evaluate their impact on the homeostasis of endogenous SL metabolism, which could be beneficial in prevention or treatment of obesity and related metabolic disorders.
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Affiliation(s)
- Mélanie Le Barz
- Univ Lyon, CarMeN Laboratory, Inserm, INRA, INSA Lyon, Université Claude Bernard Lyon 1, Lyon-Sud Medical School, Pierre-Bénite, Fr-69310, France.
| | - Marie Michèle Boulet
- Univ Lyon, CarMeN Laboratory, Inserm, INRA, INSA Lyon, Université Claude Bernard Lyon 1, Lyon-Sud Medical School, Pierre-Bénite, Fr-69310, France.
| | - Catherine Calzada
- Univ Lyon, CarMeN Laboratory, Inserm, INRA, INSA Lyon, Université Claude Bernard Lyon 1, Lyon-Sud Medical School, Pierre-Bénite, Fr-69310, France.
| | - David Cheillan
- Univ Lyon, CarMeN Laboratory, Inserm, INRA, INSA Lyon, Université Claude Bernard Lyon 1, Lyon-Sud Medical School, Pierre-Bénite, Fr-69310, France; Service Biochimie et Biologie Moléculaire Grand Est, Centre de Biologie Est, Hospices Civils de Lyon, 69677, Bron, France.
| | - Marie-Caroline Michalski
- Univ Lyon, CarMeN Laboratory, Inserm, INRA, INSA Lyon, Université Claude Bernard Lyon 1, Lyon-Sud Medical School, Pierre-Bénite, Fr-69310, France.
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Ao M, Wang K, Zhou X, Chen G, Zhou Y, Wei B, Shao W, Huang J, Liao H, Wang Z, Sun Y, Zeng S, Chen Y. Exogenous GM3 ganglioside inhibits atherosclerosis via multiple steps: A potential atheroprotective drug. Pharmacol Res 2019; 148:104445. [PMID: 31526872 DOI: 10.1016/j.phrs.2019.104445] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/06/2019] [Accepted: 09/03/2019] [Indexed: 12/16/2022]
Abstract
Atherosclerosis is one of the leading causes of morbidity and mortality worldwide. A significant increase in ganglioside GM3 content generally happens in atherosclerotic plaques causing a GM3-enriched microenvironment. It remains unclear whether the GM3-enriched microenvironment influences atherogenesis. This study sought to answer the question by investigating exogenous GM3 effects on multiple steps involved in atherogenesis. First, the physicochemical properties of native low-density lipoprotein (LDL) and LDL enriched with exogenous GM3 (GM3-LDL) were characterized by dynamic laser scattering, atomic force microscopy, and agarose gel electrophoresis. Then, electrophoretic mobility, conjugated diene and malondialdehyde production, and amino group blockage of GM3-LDL/LDL were measured to determine LDL oxidation degrees and cellular recognition/internalization of GM3-LDL/GM3-oxLDL were detected via confocal microscopy and flow cytometry. Subsequently, influences of exogenous GM3 addition on the monocyte-adhering ability of endothelial cells and on lipid deposition in macrophages were investigated. Finally, exogenous GM3 effect on atherogenesis was evaluated using apoE-/- mice fed a high-fat diet. We found that exogenous GM3 addition increased the size, charge, and stability of LDL particles, reduced LDL susceptibility to oxidation and its cellular recognition/internalization, impaired the monocyte-adhering ability of endothelial cells and lipid deposition in macrophages. Moreover, exogenous GM3 treatment also significantly decreased blood lipid levels and atherosclerotic lesion areas in atherosclerotic mice. The data imply that exogenous GM3 had an inhibitory effect on atherogenesis, suggesting a protective role of a GM3-enriched microenvironment in atherosclerotic plaques and implying a possibility of exogenous GM3 as an anti-atherosclerotic drug.
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Affiliation(s)
- Meiying Ao
- Nanoscale Science and Technology Laboratory, Institute for Advanced Study, Nanchang University, Nanchang, Jiangxi 330031, PR China; School of Basic Medical Sciences, Jiangxi University of Traditional Chinese Medicine, Nanchang, Jiangxi 330025, PR China
| | - Kun Wang
- College of Life Sciences, Nanchang University, Nanchang, Jiangxi 330031, PR China
| | - Xing Zhou
- College of Life Sciences, Nanchang University, Nanchang, Jiangxi 330031, PR China
| | - Guo Chen
- College of Life Sciences, Nanchang University, Nanchang, Jiangxi 330031, PR China
| | - Yun Zhou
- College of Life Sciences, Nanchang University, Nanchang, Jiangxi 330031, PR China
| | - Bo Wei
- College of Life Sciences, Nanchang University, Nanchang, Jiangxi 330031, PR China
| | - Wenxiang Shao
- School of Basic Medical Sciences, Jiangxi University of Traditional Chinese Medicine, Nanchang, Jiangxi 330025, PR China
| | - Jie Huang
- Jiujiang Third People's Hospital, Jiujiang, Jiangxi 332000, PR China
| | - Huanhuan Liao
- College of Life Sciences, Nanchang University, Nanchang, Jiangxi 330031, PR China
| | - Zhexuan Wang
- Nanoscale Science and Technology Laboratory, Institute for Advanced Study, Nanchang University, Nanchang, Jiangxi 330031, PR China
| | - Yanan Sun
- Nanoscale Science and Technology Laboratory, Institute for Advanced Study, Nanchang University, Nanchang, Jiangxi 330031, PR China
| | - Sufen Zeng
- School of Basic Medical Sciences, Jiangxi University of Traditional Chinese Medicine, Nanchang, Jiangxi 330025, PR China
| | - Yong Chen
- Nanoscale Science and Technology Laboratory, Institute for Advanced Study, Nanchang University, Nanchang, Jiangxi 330031, PR China; College of Life Sciences, Nanchang University, Nanchang, Jiangxi 330031, PR China.
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9
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Guo T, Héon-Roberts R, Zou C, Zheng R, Pshezhetsky AV, Cairo CW. Selective Inhibitors of Human Neuraminidase 1 (NEU1). J Med Chem 2018; 61:11261-11279. [PMID: 30457869 DOI: 10.1021/acs.jmedchem.8b01411] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Inhibitors of human neuraminidase enzymes (NEU) are recognized as important tools for the study of the biological functions of NEU and will be potent tools for elucidating the role of these enzymes in regulating the repertoire of cellular glycans. Here we report the discovery of selective inhibitors of the human neuraminidase 1 (NEU1) and neuraminidase 2 (NEU2) enzymes with exceptional potency. A library of modified 2-deoxy-2,3-didehydro- N-acetylneuraminic acid (DANA) analogues, with variability in the C5- or C9-position, were synthesized and evaluated against four human neuraminidase isoenyzmes (NEU1-4). Hydrophobic groups with an amide linker at the C5 and C9 positions were well accommodated by NEU1, and a hexanamido group was found to give the best potency at both positions. While the C5-hexanamido-C9-hexanamido-DANA analogue did not show synergistic improvements for combined modification, an extended alkylamide at an individual position combined with a smaller group at the second gave increased potency. The best NEU1 inhibitor identified was a C5-hexanamido-C9-acetamido-DANA that had a Ki of 53 ± 5 nM and 340-fold selectivity over other isoenzymes. Additionally, we demonstrated that C5-modifications combined with a C4-guandino group provided the most potent NEU2 inhibitor reported, with a Ki of 1.3 ± 0.2 μM and 7-fold selectivity over other NEU isoenzymes.
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Affiliation(s)
- Tianlin Guo
- Alberta Glycomics Centre, Department of Chemistry , University of Alberta , Edmonton , Alberta T6G 2G2 , Canada
| | - Rachel Héon-Roberts
- Division of Medical Genetics , Sainte-Justine University Hospital Research Center, University of Montreal , Montréal , H3T 1C5 , Canada
| | - Chunxia Zou
- Alberta Glycomics Centre, Department of Chemistry , University of Alberta , Edmonton , Alberta T6G 2G2 , Canada
| | - Ruixiang Zheng
- Alberta Glycomics Centre, Department of Chemistry , University of Alberta , Edmonton , Alberta T6G 2G2 , Canada
| | - Alexey V Pshezhetsky
- Division of Medical Genetics , Sainte-Justine University Hospital Research Center, University of Montreal , Montréal , H3T 1C5 , Canada
| | - Christopher W Cairo
- Alberta Glycomics Centre, Department of Chemistry , University of Alberta , Edmonton , Alberta T6G 2G2 , Canada
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10
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Lee M, Kim KS, Fukushi A, Kim DH, Kim CH, Lee YC. Transcriptional Activation of Human GD3 Synthase (hST8Sia I) Gene in Curcumin-Induced Autophagy in A549 Human Lung Carcinoma Cells. Int J Mol Sci 2018; 19:ijms19071943. [PMID: 30004453 PMCID: PMC6073763 DOI: 10.3390/ijms19071943] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2018] [Revised: 06/19/2018] [Accepted: 06/30/2018] [Indexed: 01/05/2023] Open
Abstract
Curcumin, a natural polyphenolic compound isolated from the plant Curcuma longa, is known to induce autophagy in various cancer cells, including lung cancer. In the present study, we also confirmed by LC3 immunofluorescence and immunoblotting analyses that curcumin triggers autophagy in the human lung adenocarcinoma A549 cell line. In parallel with autophagy induction, the gene expression of human GD3 synthase (hST8Sia I) responsible for ganglioside GD3 synthesis was markedly elevated in response to curcumin in the A549 cells. To investigate the transcriptional activation of hST8Sia I associated with the autophagy formation in curcumin-treated A549 cells, functional characterization of the 5′-flanking region of the hST8Sia I gene was carried out using the luciferase reporter assay system. Deletion analysis demonstrated that the -1146 to -646 region, which includes the putative c-Ets-1, CREB, AP-1, and NF-κB binding sites, functions as the curcumin-responsive promoter of hST8Sia I in A549 cells. The site-directed mutagenesis and chromatin immunoprecipitation assay demonstrated that the NF-κB binding site at -731 to -722 was indispensable for the curcumin-induced hST8Sia I gene expression in A549 cells. Moreover, the transcriptional activation of hST8Sia I by the curcumin A549 cells was strongly inhibited by compound C, an inhibitor of AMP-activated protein kinase (AMPK). These results suggest that curcumin controls hST8Sia I gene expression via AMPK signal pathway in A549 cells.
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Affiliation(s)
- Miri Lee
- Department of Medicinal Biotechnology, College of Health Sciences, Dong-A university, Busan 604-714, Korea.
| | - Kyoung-Sook Kim
- Department of Medicinal Biotechnology, College of Health Sciences, Dong-A university, Busan 604-714, Korea.
| | - Abekura Fukushi
- Molecular and Cellular Glycobiology Unit, Department of Biological Sciences, Sungkyunkwan University, Seobu-Ro, Jangan, Suwon, Gyeonggi-Do 16419, Korea.
| | - Dong-Hyun Kim
- Department of Medicinal Biotechnology, College of Health Sciences, Dong-A university, Busan 604-714, Korea.
| | - Cheorl-Ho Kim
- Molecular and Cellular Glycobiology Unit, Department of Biological Sciences, Sungkyunkwan University, Seobu-Ro, Jangan, Suwon, Gyeonggi-Do 16419, Korea.
| | - Young-Choon Lee
- Department of Medicinal Biotechnology, College of Health Sciences, Dong-A university, Busan 604-714, Korea.
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11
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Park J, Kwak CH, Ha SH, Kwon KM, Abekura F, Cho SH, Chang YC, Lee YC, Ha KT, Chung TW, Kim CH. Ganglioside GM3 suppresses lipopolysaccharide-induced inflammatory responses in rAW 264.7 macrophage cells through NF-κB, AP-1, and MAPKs signaling. J Cell Biochem 2017; 119:1173-1182. [PMID: 28708322 DOI: 10.1002/jcb.26287] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2017] [Accepted: 07/13/2017] [Indexed: 02/06/2023]
Abstract
Gangliosides are known to specifically inhibit vascular leukocyte recruitment and consequent interaction with the injured endothelium, the basic inflammatory process. In this study, we have found that the production of nitric oxide (NO), a main regulator of inflammation, is suppressed by GM3 on murine macrophage RAW 264.7 cells, when induced by LPS. In addition, GM3 attenuated the increase in cyclooxyenase-2 (COX-2) protein and mRNA levels in lipopolysaccharide (LPS)-activated RAW 264.7 cells in a dose-dependent manner. Moreover, GM3 inhibited the expression and release of pro-inflammatory cytokines of tumor necrosis factor-alpha (TNF-α), interleukin-6 (IL-6), and interleukin-1β (IL-1β) in RAW 264.7 macrophages. At the intracellular level, GM3 inhibited LPS-induced nuclear translocation of nuclear factor kappa-light-chain-enhancer of activated B cells (NF-κB) and activator protein (AP)-1 in RAW 264.7 macrophages. We, therefore, investigated whether GM3 affects mitogen-activated protein kinase (MAPK) phosphorylation, a process known as the upstream signaling regulator. GM3 dramatically reduced the expression levels of the phosphorylated forms of ERK, JNK, and p38 in LPS-activated RAW 264.7 cells. These results indicate that GM3 is a promising suppressor of the vascular inflammatory responses and ganglioside GM3 suppresses the LPS-induced inflammatory response in RAW 264.7 macrophages by suppression of NF-κB, AP-1, and MAPKs signaling. Accordingly, GM3 is suggested as a beneficial agent for the treatment of diseases that are associated with inflammation.
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Affiliation(s)
- Junyoung Park
- Molecular and Cellular Glycobiology Unit, Department of Biological Sciences, Sungkyunkwan University, Seoburo, Jangan-Gu, Suwon, Gyunggi-Do, Republic of Korea
| | - Choong-Hwan Kwak
- Molecular and Cellular Glycobiology Unit, Department of Biological Sciences, Sungkyunkwan University, Seoburo, Jangan-Gu, Suwon, Gyunggi-Do, Republic of Korea.,Division of Applied Medicine, School of Korean Medicine, Pusan National University, Yangsan City, Gyeongsangnam-Do, Republic of Korea
| | - Sun-Hyung Ha
- Molecular and Cellular Glycobiology Unit, Department of Biological Sciences, Sungkyunkwan University, Seoburo, Jangan-Gu, Suwon, Gyunggi-Do, Republic of Korea
| | - Kyung-Min Kwon
- Molecular and Cellular Glycobiology Unit, Department of Biological Sciences, Sungkyunkwan University, Seoburo, Jangan-Gu, Suwon, Gyunggi-Do, Republic of Korea.,Research Institute, Davinch-K Co., Ltd, Geumcheon-Gu, Seoul, Republic of Korea
| | - Fukushi Abekura
- Molecular and Cellular Glycobiology Unit, Department of Biological Sciences, Sungkyunkwan University, Seoburo, Jangan-Gu, Suwon, Gyunggi-Do, Republic of Korea
| | - Seung-Hak Cho
- Division of Enteric Diseases, Center for Infectious Diseases Research, Korea National Institute of Health, Heungdeok-gu, Cheongju, Republic of Korea
| | - Young-Chae Chang
- Research Institute of Biomedical Engineering and Department of Medicine, Catholic University of Daegu School of Medicine, Daegu, Republic of Korea
| | - Young-Choon Lee
- Faculty of Medicinal Biotechnology, Dong-A University, Saha-Gu, Busan, Republic of Korea
| | - Ki-Tae Ha
- Division of Applied Medicine, School of Korean Medicine, Pusan National University, Yangsan City, Gyeongsangnam-Do, Republic of Korea
| | - Tae-Wook Chung
- Division of Applied Medicine, School of Korean Medicine, Pusan National University, Yangsan City, Gyeongsangnam-Do, Republic of Korea
| | - Cheorl-Ho Kim
- Molecular and Cellular Glycobiology Unit, Department of Biological Sciences, Sungkyunkwan University, Seoburo, Jangan-Gu, Suwon, Gyunggi-Do, Republic of Korea
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