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Shimanouchi T, Sano Y, Yasuhara K, Kimura Y. Amyloid-β aggregates induced by β-cholesteryl glucose-embedded liposomes. BIOCHIMICA ET BIOPHYSICA ACTA. PROTEINS AND PROTEOMICS 2022; 1870:140816. [PMID: 35777623 DOI: 10.1016/j.bbapap.2022.140816] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/20/2022] [Revised: 06/03/2022] [Accepted: 06/22/2022] [Indexed: 06/15/2023]
Abstract
Senile plaques that is characterized as an amyloid deposition found in Alzheimer's disease are composed primarily of fibrils of an aggregated peptide, amyloid β (Aβ). The ability to monitor senile plaque formation on a neuronal membrane under physiological conditions provides an attractive model. In this study, the growth behavior of amyloid Aβ fibrils in the presence of liposomes incorporating β-cholesteryl-D-glucose (β-CG) was examined using total internal reflection fluorescence microscopy, transmittance electron microscopy, and other spectroscopic methods. We found that β-CG on the liposome membrane induced the spontaneous formation of spherulitic Aβ fibrillar aggregates. The β-CG cluster formed on liposome membranes appeared to induce the accumulation of Aβ, followed by the growth of the spherulitic Aβ aggregates. In contrast, DMPC and DMPC incorporated cholesterol-induced fibrils that are laterally associated with each other. A comparison study using three types of liposomes implied that the induction of glucose contributed to the agglomeration of Aβ fibrils and liposomes. This agglomeration required the spontaneous formation of spherulitic Aβ fibrillary aggregates. This action can be regarded as a counterbalance to the growth of fibrils and their toxicity, which has great potential in the study of amyloidopathies.
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Affiliation(s)
- Toshinori Shimanouchi
- Graduate School of Environmental and Life Science, Okayama University, 3-1-1 Tsushimanaka, kita-kku, Okayama 700-8530, Japan.
| | - Yasuhiro Sano
- Graduate School of Environmental and Life Science, Okayama University, 3-1-1 Tsushimanaka, kita-kku, Okayama 700-8530, Japan
| | - Kazuma Yasuhara
- Division of Materials Science, Nara Institute of Science and Technology (NAIST), 8916-5 Takayama-cho, Ikoma, Nara 630-0192, Japan
| | - Yukitaka Kimura
- Graduate School of Environmental and Life Science, Okayama University, 3-1-1 Tsushimanaka, kita-kku, Okayama 700-8530, Japan
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2
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Endo I, Watanabe T, Miyamoto T, Monjusho-Goda H, Ohara J, Hayashi M, Hama Y, Ishibashi Y, Okino N, Ito M. C4-monomethylsterol β-glucoside and its synthase in Aurantiochytrium limacinum mh0186. Glycobiology 2021; 31:1350-1363. [PMID: 34224567 DOI: 10.1093/glycob/cwab070] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 06/23/2021] [Accepted: 06/24/2021] [Indexed: 11/14/2022] Open
Abstract
Thraustochytrids, unicellular marine protists, synthesize polyunsaturated fatty acids (PUFAs) and PUFA-containing phospholipids; however, little is known about their glycolipids and their associated metabolism. Here, we report two glycolipids (GL-A, B) and their synthases in Aurantiochytrium limacinum mh0186. Two glycolipids were purified from A. limacinum mh0186, and they were determined by gas chromatography, mass spectrometry and two-dimensional nuclear magnetic resonance to be 3-O-β-D-glucopyranosyl-stigmasta-5,7,22-triene (GL-A) and 3-O-β-D-glucopyranosyl-4α-methyl-stigmasta-7,22-diene (GL-B), both of which are sterol β-glucosides (β-SGs); the structure of GL-B has not been reported thus far. Seven candidate genes responsible for the synthesis of these β-SGs were extracted from the draft genome database of A. limacinum using the yeast sterol β-glucosyltransferase (SGT; EC 2.4.1.173) sequence as a query. Expression analysis using Saccharomyces cerevisiae revealed that two gene products (AlSGT-1 and 2) catalyze the transfer of glucose from UDP-glucose to sterols, generating sterylglucosides (SGs). Compared to AlSGT-1, AlSGT-2 exhibited wide specificity for sterols and used C4-monomethylsterol to synthesize GL-B. The disruption of alsgt-2 but not alsgt-1 in strain mh0186 resulted in a decrease in total SG and almost complete loss of GL-B, indicating that AlSGT-2 is responsible for the synthesis of β-SGs in A. limacinum mh0186, especially GL-B, which possesses a unique sterol structure.
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Affiliation(s)
- Ikumi Endo
- Department of Bioscience and Biotechnology
| | | | - Tomofumi Miyamoto
- Graduate School of Pharmaceutical Science, Kyushu University, Fukuoka 812-8582, Japan
| | | | | | - Masahiro Hayashi
- Department of Marine Biology and Environmental Sciences, Faculty of Agriculture, University of Miyazaki, Miyazaki 889-2192, Japan
| | - Yoichiro Hama
- Applied Biochemistry and Food Science Course, Faculty of Agriculture, Saga University, 1 Honjo, Saga 840-8502, Japan
| | | | | | - Makoto Ito
- Department of Bioscience and Biotechnology.,Innovative Bio-Architecture Center, Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University, Fukuoka 819-0395
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3
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García‐Sanz P, M.F.G. Aerts J, Moratalla R. The Role of Cholesterol in α-Synuclein and Lewy Body Pathology in GBA1 Parkinson's Disease. Mov Disord 2021; 36:1070-1085. [PMID: 33219714 PMCID: PMC8247417 DOI: 10.1002/mds.28396] [Citation(s) in RCA: 54] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Revised: 11/01/2020] [Accepted: 11/03/2020] [Indexed: 02/06/2023] Open
Abstract
Parkinson's disease (PD) is a progressive neurodegenerative disease where dopaminergic neurons in the substantia nigra are lost, resulting in a decrease in striatal dopamine and, consequently, motor control. Dopaminergic degeneration is associated with the appearance of Lewy bodies, which contain membrane structures and proteins, including α-synuclein (α-Syn), in surviving neurons. PD displays a multifactorial pathology and develops from interactions between multiple elements, such as age, environmental conditions, and genetics. Mutations in the GBA1 gene represent one of the major genetic risk factors for PD. This gene encodes an essential lysosomal enzyme called β-glucocerebrosidase (GCase), which is responsible for degrading the glycolipid glucocerebroside into glucose and ceramide. GCase can generate glucosylated cholesterol via transglucosylation and can also degrade the sterol glucoside. Although the molecular mechanisms that predispose an individual to neurodegeneration remain unknown, the role of cholesterol in PD pathology deserves consideration. Disturbed cellular cholesterol metabolism, as reflected by accumulation of lysosomal cholesterol in GBA1-associated PD cellular models, could contribute to changes in lipid rafts, which are necessary for synaptic localization and vesicle cycling and modulation of synaptic integrity. α-Syn has been implicated in the regulation of neuronal cholesterol, and cholesterol facilitates interactions between α-Syn oligomers. In this review, we integrate the results of previous studies and describe the cholesterol landscape in cellular homeostasis and neuronal function. We discuss its implication in α-Syn and Lewy body pathophysiological mechanisms underlying PD, focusing on the role of GCase and cholesterol. © 2020 The Authors. Movement Disorders published by Wiley Periodicals LLC on behalf of International Parkinson and Movement Disorder Society.
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Affiliation(s)
- Patricia García‐Sanz
- Instituto Cajal, CSICMadridSpain
- Centro de Investigación Biomédica en Red sobre Enfermedades NeurodegenerativasInstituto de Salud Carlos IIIMadridSpain
| | - Johannes M.F.G. Aerts
- Medical Biochemistry, Leiden Institute of Chemistry, Leiden UniversityFaculty of ScienceLeidenthe Netherlands
| | - Rosario Moratalla
- Instituto Cajal, CSICMadridSpain
- Centro de Investigación Biomédica en Red sobre Enfermedades NeurodegenerativasInstituto de Salud Carlos IIIMadridSpain
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4
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Structure, metabolism and biological functions of steryl glycosides in mammals. Biochem J 2021; 477:4243-4261. [PMID: 33186452 PMCID: PMC7666875 DOI: 10.1042/bcj20200532] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Revised: 10/09/2020] [Accepted: 10/21/2020] [Indexed: 12/20/2022]
Abstract
Steryl glycosides (SGs) are sterols glycosylated at their 3β-hydroxy group. They are widely distributed in plants, algae, and fungi, but are relatively rare in bacteria and animals. Glycosylation of sterols, resulting in important components of the cell membrane SGs, alters their biophysical properties and confers resistance against stress by freezing or heat shock to cells. Besides, many biological functions in animals have been suggested from the observations of SG administration. Recently, cholesteryl glucosides synthesized via the transglycosidation by glucocerebrosidases (GBAs) were found in the central nervous system of animals. Identification of patients with congenital mutations in GBA genes or availability of respective animal models will enable investigation of the function of such endogenously synthesized cholesteryl glycosides by genetic approaches. In addition, mechanisms of the host immune responses against pathogenic bacterial SGs have partially been resolved. This review is focused on the biological functions of SGs in mammals taking into consideration their therapeutic applications in the future.
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Boer DE, Mirzaian M, Ferraz MJ, Zwiers KC, Baks MV, Hazeu MD, Ottenhoff R, Marques ARA, Meijer R, Roos JCP, Cox TM, Boot RG, Pannu N, Overkleeft HS, Artola M, Aerts JM. Human glucocerebrosidase mediates formation of xylosyl-cholesterol by β-xylosidase and transxylosidase reactions. J Lipid Res 2021; 62:100018. [PMID: 33361282 PMCID: PMC7903134 DOI: 10.1194/jlr.ra120001043] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2020] [Revised: 12/14/2020] [Accepted: 12/23/2020] [Indexed: 11/20/2022] Open
Abstract
Deficiency of glucocerebrosidase (GBA), a lysosomal β-glucosidase, causes Gaucher disease. The enzyme hydrolyzes β-glucosidic substrates and transglucosylates cholesterol to cholesterol-β-glucoside. Here we show that recombinant human GBA also cleaves β-xylosides and transxylosylates cholesterol. The xylosyl-cholesterol formed acts as an acceptor for the subsequent formation of di-xylosyl-cholesterol. Common mutant forms of GBA from patients with Gaucher disease with reduced β-glucosidase activity were similarly impaired in β-xylosidase, transglucosidase, and transxylosidase activities, except for a slightly reduced xylosidase/glucosidase activity ratio of N370S GBA and a slightly reduced transglucosylation/glucosidase activity ratio of D409H GBA. XylChol was found to be reduced in spleen from patients with Gaucher disease. The origin of newly identified XylChol in mouse and human tissues was investigated. Cultured human cells exposed to exogenous β-xylosides generated XylChol in a manner dependent on active lysosomal GBA but not the cytosol-facing β-glucosidase GBA2. We later sought an endogenous β-xyloside acting as donor in transxylosylation reactions, identifying xylosylated ceramide (XylCer) in cells and tissues that serve as donor in the formation of XylChol. UDP-glucosylceramide synthase (GCS) was unable to synthesize XylChol but could catalyze the formation of XylCer. Thus, food-derived β-D-xyloside and XylCer are potential donors for the GBA-mediated formation of XylChol in cells. The enzyme GCS produces XylCer at a low rate. Our findings point to further catalytic versatility of GBA and prompt a systematic exploration of the distribution and role of xylosylated lipids.
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Affiliation(s)
- Daphne E Boer
- Department of Medical Biochemistry, Leiden Institute of Chemistry, Leiden University, The Netherlands
| | - Mina Mirzaian
- Department of Medical Biochemistry, Leiden Institute of Chemistry, Leiden University, The Netherlands
| | - Maria J Ferraz
- Department of Medical Biochemistry, Leiden Institute of Chemistry, Leiden University, The Netherlands
| | - Kimberley C Zwiers
- Department of Medical Biochemistry, Leiden Institute of Chemistry, Leiden University, The Netherlands
| | - Merel V Baks
- Department of Medical Biochemistry, Leiden Institute of Chemistry, Leiden University, The Netherlands
| | - Marc D Hazeu
- Department of Medical Biochemistry, Leiden Institute of Chemistry, Leiden University, The Netherlands
| | - Roelof Ottenhoff
- Department of Medical Biochemistry, Academic Medical Center, Amsterdam, The Netherlands
| | - André R A Marques
- Department of Medical Biochemistry, Leiden Institute of Chemistry, Leiden University, The Netherlands
| | - Rianne Meijer
- Department of Medical Biochemistry, Leiden Institute of Chemistry, Leiden University, The Netherlands
| | - Jonathan C P Roos
- Department of Medicine, University of Cambridge, Cambridge, United Kingdom
| | - Timothy M Cox
- Department of Medicine, University of Cambridge, Cambridge, United Kingdom
| | - Rolf G Boot
- Department of Medical Biochemistry, Leiden Institute of Chemistry, Leiden University, The Netherlands
| | - Navraj Pannu
- Department of Biophysical Structural Chemistry, Leiden Institute of Chemistry, Leiden University, The Netherlands
| | - Herman S Overkleeft
- Department of Bio-organic Synthesis, Leiden Institute of Chemistry, Leiden University, The Netherlands
| | - Marta Artola
- Department of Medical Biochemistry, Leiden Institute of Chemistry, Leiden University, The Netherlands
| | - Johannes M Aerts
- Department of Medical Biochemistry, Leiden Institute of Chemistry, Leiden University, The Netherlands.
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6
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Hanashima S, Fukuda N, Malabed R, Murata M, Kinoshita M, Greimel P, Hirabayashi Y. β-Glucosylation of cholesterol reduces sterol-sphingomyelin interactions. BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES 2020; 1863:183496. [PMID: 33130096 DOI: 10.1016/j.bbamem.2020.183496] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 08/25/2020] [Revised: 10/10/2020] [Accepted: 10/16/2020] [Indexed: 12/24/2022]
Abstract
Cholesteryl-β-D-glucoside (ChoGlc) is a mammalian glycolipid that is expressed in brain tissue. The effects of glucosylation on the ordering and lipid interactions of cholesterol (Cho) were examined in membranes composed of N-stearoyl sphingomyelin (SSM), which is abundant in the brain, and to investigate the possible molecular mechanism involved in these interactions. Differential scanning calorimetry revealed that ChoGlc was miscible with SSM in a similar extent of Cho. Solid-state 2H NMR of deuterated SSM and fluorescent anisotropy using 1,6-diphenylhexatriene demonstrated that the glucosylation of Cho significantly reduced the effect of the sterol tetracyclic core on the ordering of SSM chains. The orientation of the sterol core was further examined by solid-state NMR analysis of deuterated and fluorinated ChoGlc analogues. ChoGlc had a smaller tilt angle between the long molecular axis (C3-C17) and the membrane normal than Cho in SSM bilayers, and the fluctuations in the tilt angle were largely unaffected by temperature-dependent mobility changes of SSM acyl chains. This orientation of the sterol core of ChoGlc leads to reduce sterol-SSM interactions. The MD simulation results suggested that the Glc moiety perturbs the SSM-sterol interactions, which reduces the umbrella effect of the phosphocholine headgroup because the hydrophilic glucose moiety resides at the same depth as an SSM amide group. These differences between ChoGlc and Cho also weaken the SSM-ChoGlc interactions. Thus, the distribution and localization of Cho and ChoGlc possibly control the stability of sphingomyelin-based domains that transiently occur at specific locations in biological membranes.
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Affiliation(s)
- Shinya Hanashima
- Department of Chemistry, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan.
| | - Nanami Fukuda
- Department of Chemistry, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - Raymond Malabed
- Department of Chemistry, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - Michio Murata
- Department of Chemistry, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan.
| | - Msanao Kinoshita
- Department of Chemistry, Graduate School of Science, Kyushu University, Fukuoka, Fukuoka 819-0395, Japan
| | - Peter Greimel
- Laboratory for Cell Function Dynamics, Brain Science Institute, RIKEN Institute, Wako, Saitama 351-0198, Japan
| | - Yoshio Hirabayashi
- RIKEN Cluster for Pioneering Research, RIKEN, Wako, Saitama 351-0198, Japan; Institute for Environmental and Gender-Specific Medicine, Juntendo University Graduate School of Medicine, Urayasu, Chiba 279-0021, Japan
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7
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Boer DEC, Mirzaian M, Ferraz MJ, Nadaban A, Schreuder A, Hovnanian A, van Smeden J, Bouwstra JA, Aerts JMFG. Glucosylated cholesterol in skin: Synthetic role of extracellular glucocerebrosidase. Clin Chim Acta 2020; 510:707-710. [PMID: 32946792 DOI: 10.1016/j.cca.2020.09.017] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Revised: 08/20/2020] [Accepted: 09/11/2020] [Indexed: 11/25/2022]
Abstract
The existence of glucosylated cholesterol (GlcChol) in tissue has recently been recognized. GlcChol is generated from glucosylceramide (GlcCer) and cholesterol through transglucosylation by two retaining β-glucosidases, GBA and GBA2. Given the abundance of GBA, GlcCer and cholesterol in the skin's stratum corneum (SC), we studied the occurrence of GlcChol. A significant amount of GlcChol was detected in SC (6 pmol/mg weight). The ratio GlcChol/GlcCer is higher in SC than epidermis, 0.083 and 0.011, respectively. Examination of GlcChol in patients with Netherton syndrome revealed comparable levels (11 pmol/mg). Concluding, GlcChol was identified as a novel component in SC and is likely locally metabolized by GBA. The physiological function of GlcChol in the SC warrants future investigation.
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Affiliation(s)
- Daphne E C Boer
- Medical Biochemistry Leiden Institute of Chemistry, Leiden University, Leiden, the Netherlands
| | - Mina Mirzaian
- Medical Biochemistry Leiden Institute of Chemistry, Leiden University, Leiden, the Netherlands
| | - Maria J Ferraz
- Medical Biochemistry Leiden Institute of Chemistry, Leiden University, Leiden, the Netherlands
| | - Andreea Nadaban
- Leiden Academic Centre for Drug Research, Leiden University, Leiden, the Netherlands
| | - Anne Schreuder
- Medical Biochemistry Leiden Institute of Chemistry, Leiden University, Leiden, the Netherlands
| | - Alain Hovnanian
- INSERM UMR1163, Imagine Institute, Paris Descartes University, 75015 Paris, France; Department of Genetics, Necker-Enfants Malades Hospital, Assistance Publique des Hôpitaux de Paris (AP-HP), Paris, France
| | - Jeroen van Smeden
- Leiden Academic Centre for Drug Research, Leiden University, Leiden, the Netherlands; Centre for Human Drug Research, Leiden, the Netherlands
| | - Joke A Bouwstra
- Leiden Academic Centre for Drug Research, Leiden University, Leiden, the Netherlands
| | - Johannes M F G Aerts
- Medical Biochemistry Leiden Institute of Chemistry, Leiden University, Leiden, the Netherlands.
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8
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Glucocerebrosidase: Functions in and Beyond the Lysosome. J Clin Med 2020; 9:jcm9030736. [PMID: 32182893 PMCID: PMC7141376 DOI: 10.3390/jcm9030736] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2020] [Revised: 03/03/2020] [Accepted: 03/04/2020] [Indexed: 02/07/2023] Open
Abstract
Glucocerebrosidase (GCase) is a retaining β-glucosidase with acid pH optimum metabolizing the glycosphingolipid glucosylceramide (GlcCer) to ceramide and glucose. Inherited deficiency of GCase causes the lysosomal storage disorder named Gaucher disease (GD). In GCase-deficient GD patients the accumulation of GlcCer in lysosomes of tissue macrophages is prominent. Based on the above, the key function of GCase as lysosomal hydrolase is well recognized, however it has become apparent that GCase fulfills in the human body at least one other key function beyond lysosomes. Crucially, GCase generates ceramides from GlcCer molecules in the outer part of the skin, a process essential for optimal skin barrier property and survival. This review covers the functions of GCase in and beyond lysosomes and also pays attention to the increasing insight in hitherto unexpected catalytic versatility of the enzyme.
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Lelieveld LT, Mirzaian M, Kuo CL, Artola M, Ferraz MJ, Peter REA, Akiyama H, Greimel P, van den Berg RJBHN, Overkleeft HS, Boot RG, Meijer AH, Aerts JMFG. Role of β-glucosidase 2 in aberrant glycosphingolipid metabolism: model of glucocerebrosidase deficiency in zebrafish. J Lipid Res 2019; 60:1851-1867. [PMID: 31562193 DOI: 10.1194/jlr.ra119000154] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2019] [Revised: 09/24/2019] [Indexed: 11/20/2022] Open
Abstract
β-glucosidases [GBA1 (glucocerebrosidase) and GBA2] are ubiquitous essential enzymes. Lysosomal GBA1 and cytosol-facing GBA2 degrade glucosylceramide (GlcCer); GBA1 deficiency causes Gaucher disease, a lysosomal storage disorder characterized by lysosomal accumulation of GlcCer, which is partly converted to glucosylsphingosine (GlcSph). GBA1 and GBA2 also may transfer glucose from GlcCer to cholesterol, yielding glucosylated cholesterol (GlcChol). Here, we aimed to clarify the role of zebrafish Gba2 in glycosphingolipid metabolism during Gba1 deficiency in zebrafish (Danio rerio), which are able to survive total Gba1 deficiency. We developed Gba1 (gba1 -/-), Gba2 (gba2 -/-), and double (gba1 -/- :gba2 -/-) zebrafish knockouts using CRISPR/Cas9 and explored the effects of both genetic and pharmacological interventions on GlcCer metabolism in individual larvae. Activity-based probes and quantification of relevant glycolipid metabolites confirmed enzyme deficiency. GlcSph increased in gba1 -/- larvae (0.09 pmol/fish) but did not increase more in gba1 -/- :gba2 -/- larvae. GlcCer was comparable in gba1 -/- and WT larvae but increased in gba2 -/- and gba1 -/- :gba2 -/- larvae. Independent of Gba1 status, GlcChol was low in all gba2 -/- larvae (0.05 vs. 0.18 pmol/fish in WT). Pharmacologic inactivation of zebrafish Gba1 comparably increased GlcSph. Inhibition of GlcCer synthase (GCS) in Gba1-deficient larvae reduced GlcCer and GlcSph, and concomitant inhibition of GCS and Gba2 with iminosugars also reduced excessive GlcChol. Finally, overexpression of human GBA1 and injection of recombinant GBA1 both decreased GlcSph. We determined that zebrafish larvae offer an attractive model to study glucosidase actions in glycosphingolipid metabolism in vivo, and we identified distinguishing characteristics of zebrafish Gba2 deficiency.
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Affiliation(s)
- Lindsey T Lelieveld
- Department of Medical Biochemistry Leiden Institute of Chemistry, Leiden, The Netherlands
| | - Mina Mirzaian
- Department of Medical Biochemistry Leiden Institute of Chemistry, Leiden, The Netherlands
| | - Chi-Lin Kuo
- Department of Medical Biochemistry Leiden Institute of Chemistry, Leiden, The Netherlands
| | - Marta Artola
- Department of Medical Biochemistry Leiden Institute of Chemistry, Leiden, The Netherlands.,Bio-organic Synthesis Group, Leiden Institute of Chemistry, Leiden, The Netherlands
| | - Maria J Ferraz
- Department of Medical Biochemistry Leiden Institute of Chemistry, Leiden, The Netherlands
| | - Remco E A Peter
- Department of Medical Biochemistry Leiden Institute of Chemistry, Leiden, The Netherlands
| | | | | | | | - Herman S Overkleeft
- Bio-organic Synthesis Group, Leiden Institute of Chemistry, Leiden, The Netherlands
| | - Rolf G Boot
- Department of Medical Biochemistry Leiden Institute of Chemistry, Leiden, The Netherlands
| | | | - Johannes M F G Aerts
- Department of Medical Biochemistry Leiden Institute of Chemistry, Leiden, The Netherlands
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10
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Franco R, Navarro G, Martínez-Pinilla E. Lessons on Differential Neuronal-Death-Vulnerability from Familial Cases of Parkinson's and Alzheimer's Diseases. Int J Mol Sci 2019; 20:ijms20133297. [PMID: 31277513 PMCID: PMC6651599 DOI: 10.3390/ijms20133297] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2019] [Revised: 06/28/2019] [Accepted: 07/02/2019] [Indexed: 12/19/2022] Open
Abstract
The main risk of Alzheimer’s disease (AD) and Parkinson’s disease (PD), the two most common neurodegenerative pathologies, is aging. In contrast to sporadic cases, whose symptoms appear at >60 years of age, familial PD or familial AD affects younger individuals. Finding early biological markers of these diseases as well as efficacious treatments for both symptom relief and delaying disease progression are of paramount relevance. Familial early-onset PD/AD are due to genetic factors, sometimes a single mutation in a given gene. Both diseases have neuronal loss and abnormal accumulations of specific proteins in common, but in different brain regions. Despite shared features, the mechanisms underlying the pathophysiological processes are not known. This review aims at finding, among the genetic-associated cases of PD and AD, common trends that could be of interest to discover reliable biomarkers and efficacious therapies, especially those aimed at affording neuroprotection, i.e., the prevention of neuronal death.
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Affiliation(s)
- Rafael Franco
- Chemistry School, University of Barcelona, 08028 Barcelona, Spain.
- Centro de Investigación Biomédica en Red Enfermedades Neurodegenerativas (CiberNed), Instituto de Salud Carlos III, 28031 Madrid, Spain.
| | - Gemma Navarro
- Centro de Investigación Biomédica en Red Enfermedades Neurodegenerativas (CiberNed), Instituto de Salud Carlos III, 28031 Madrid, Spain
- Department of Biochemistry and Physiology, Faculty of Pharmacy, University of Barcelona, 02028 Barcelona, Spain
| | - Eva Martínez-Pinilla
- Departamento de Morfología y Biología Celular, Facultad de Medicina, Universidad de Oviedo, 33006 Oviedo, Spain.
- Instituto de Neurociencias del Principado de Asturias (INEUROPA), 33003 Oviedo, Asturias, Spain.
- Instituto de Salud del Principado de Asturias (ISPA), 33011 Oviedo, Asturias, Spain.
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11
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Trinchera M, Parini R, Indellicato R, Domenighini R, dall'Olio F. Diseases of ganglioside biosynthesis: An expanding group of congenital disorders of glycosylation. Mol Genet Metab 2018; 124:230-237. [PMID: 29983310 DOI: 10.1016/j.ymgme.2018.06.014] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/04/2018] [Revised: 06/27/2018] [Accepted: 06/27/2018] [Indexed: 10/28/2022]
Abstract
Among the numerous congenital disorders of glycosylation concerning glycoproteins, only a single mutation in ganglioside biosynthesis had been reported until a few years ago: one in the ST3GAL5 gene, encoding GM3 synthase. More recently, additional mutations in the same gene were reported, together with several distinct mutations in the B4GALNT1 gene, encoding GM2/GD2/GA2 synthase. Patients suffering from ST3GAL5 deficiency present a devastating syndrome characterized by early onset and dramatic neurological and cognitive impairment, sometimes associated with dyspigmentation and an increased blood lactate concentration. On the other hand, B4GALNT1 mutations give rise to a form of complicated hereditary spastic paraplegia (HSP), previously referred to as HSP26. It is characterized by the late onset of lower limb weakness and mild to moderate intellectual impairment, which is usually not progressive. In addition to the most typical signs, some patients present ocular and endocrine signs, pes cavus, and psychiatric illness. Since the nineties, mice lacking genes for single glycosyltransferases involved in ganglioside biosynthesis, including ST3GAL5 and B4GALNT1, were created and studied. The resulting phenotypes were frequently mild or very mild, so double knock-out animals were created to effectively study the function of gangliosides. The main clinical and biochemical features of patients suffering from GM3 synthase or GM2/GD2/GA2 synthase deficiency, compared with the phenotypes described in mice that are null for single or multiple glycosyltransferase genes, provide suggestions to improve the recognition of novel mutations and potentially related disorders.
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Affiliation(s)
- Marco Trinchera
- Department of Medicine and Surgery (DMC), University of Insubria, 21100 Varese, Italy.
| | - Rossella Parini
- Pediatric Unit, Fondazione MBBM, San Gerardo Hospital, 20900 Monza, Italy
| | - Rossella Indellicato
- Department of Health Sciences, San Paolo Hospital, University of Milan, 20142 Milano, Italy
| | - Ruben Domenighini
- Department of Health Sciences, San Paolo Hospital, University of Milan, 20142 Milano, Italy
| | - Fabio dall'Olio
- Department of Experimental, Diagnostic and Specialty Medicine (DIMES), University of Bologna, 40126 Bologna, Italy
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12
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Franco R, Sánchez-Arias JA, Navarro G, Lanciego JL. Glucocerebrosidase Mutations and Synucleinopathies. Potential Role of Sterylglucosides and Relevance of Studying Both GBA1 and GBA2 Genes. Front Neuroanat 2018; 12:52. [PMID: 30002620 PMCID: PMC6031742 DOI: 10.3389/fnana.2018.00052] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2018] [Accepted: 05/31/2018] [Indexed: 12/21/2022] Open
Abstract
Gaucher's disease (GD) is the most prevalent lysosomal storage disorder. GD is caused by homozygous mutations of the GBA1 gene, which codes for beta-glucocerebrosidase (GCase). Although GD primarily affects peripheral tissues, the presence of neurological symptoms has been reported in several GD subtypes. GBA1 mutations have recently deserved increased attention upon the demonstration that both homo- and heterozygous GBA1 mutations represent the most important genetic risk factor for the appearance of synucleinopathies like Parkinson's disease (PD) and dementia with Lewy bodies (LBD). Although reduced GCase activity leads to alpha-synuclein aggregation, the mechanisms sustaining a role for GCase in alpha-synuclein homeostasis still remain largely unknown. Furthermore, the role to be played by impairment in the physiological function of endoplasmic reticulum, mitochondria and other subcellular membranous components is currently under investigation. Here we focus on the impact of GCase loss-of-function that impact on the levels of sterylglucosides, molecules that are known to trigger a PD-related synucleinopathy upon administration in rats. Moreover, the concurrence of another gene also coding for an enzyme with GCase activity (GBA2 gene) should also be taken into consideration, bearing in mind that in addition to a hydrolytic function, both GCases also share transglycosylation as a second catalytic activity. Accordingly, sterylglycoside levels should also be considered to further assess their impact on the neurodegenerative process. In this regard-and besides GBA1 genotyping-we suggest that screening for GBA2 mutations should be considered, together with analytical measurements of cholesterol glycosides in body fluids, as biomarkers for both PD risk and disease progression.
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Affiliation(s)
- Rafael Franco
- Department of Biochemistry and Molecular Biomedicine, School of Biology, University of Barcelona, Barcelona, Spain.,Centro de Investigación Biomédica en Red de Enfermedades Neurodegenerativas (CiberNed), Instituto de Salud Carlos III, Madrid, Spain
| | - Juan A Sánchez-Arias
- Department of Neuroscience, Centro de Investigación Médica Aplicada (CIMA), University of Navarra, Pamplona, Spain
| | - Gemma Navarro
- Department of Biochemistry and Molecular Biomedicine, School of Biology, University of Barcelona, Barcelona, Spain.,Centro de Investigación Biomédica en Red de Enfermedades Neurodegenerativas (CiberNed), Instituto de Salud Carlos III, Madrid, Spain.,Department of Biochemistry and Physiology, School of Pharmacy, University of Barcelona, Barcelona, Spain
| | - José L Lanciego
- Centro de Investigación Biomédica en Red de Enfermedades Neurodegenerativas (CiberNed), Instituto de Salud Carlos III, Madrid, Spain.,Department of Neuroscience, Centro de Investigación Médica Aplicada (CIMA), University of Navarra, Pamplona, Spain.,Department of Neuroscience, Instituto de Investigación Sanitaria de Navarra (IdiSNA), Pamplona, Spain
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13
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Yamauchi Y, Rogers MA. Sterol Metabolism and Transport in Atherosclerosis and Cancer. Front Endocrinol (Lausanne) 2018; 9:509. [PMID: 30283400 PMCID: PMC6157400 DOI: 10.3389/fendo.2018.00509] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/23/2018] [Accepted: 08/14/2018] [Indexed: 01/22/2023] Open
Abstract
Cholesterol is a vital lipid molecule for mammalian cells, regulating fluidity of biological membranes, and serving as an essential constituent of lipid rafts. Mammalian cells acquire cholesterol from extracellular lipoproteins and from de novo synthesis. Cholesterol biosynthesis generates various precursor sterols. Cholesterol undergoes metabolic conversion into oxygenated sterols (oxysterols), bile acids, and steroid hormones. Cholesterol intermediates and metabolites have diverse and important cellular functions. A network of molecular machineries including transcription factors, protein modifiers, sterol transporters/carriers, and sterol sensors regulate sterol homeostasis in mammalian cells and tissues. Dysfunction in metabolism and transport of cholesterol, sterol intermediates, and oxysterols occurs in various pathophysiological settings such as atherosclerosis, cancers, and neurodegenerative diseases. Here we review the cholesterol, intermediate sterol, and oxysterol regulatory mechanisms and intracellular transport machineries, and discuss the roles of sterols and sterol metabolism in human diseases.
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Affiliation(s)
- Yoshio Yamauchi
- Nutri-Life Science Laboratory, Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, University of Tokyo, Tokyo, Japan
- AMED-CREST, Japan Agency for Medical Research and Development, Tokyo, Japan
- *Correspondence: Yoshio Yamauchi
| | - Maximillian A. Rogers
- Division of Cardiovascular Medicine, Center for Interdisciplinary Cardiovascular Sciences, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, United States
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14
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Van Kampen JM, Robertson HA. The BSSG rat model of Parkinson's disease: progressing towards a valid, predictive model of disease. EPMA J 2017; 8:261-271. [PMID: 29021837 PMCID: PMC5613678 DOI: 10.1007/s13167-017-0114-6] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2017] [Accepted: 08/16/2017] [Indexed: 12/13/2022]
Abstract
ABSTRACT Parkinson's disease (PD) is a neurodegenerative disorder, classically considered a movement disorder. A great deal is known about the anatomical connections and neuropathology and pharmacological changes of PD, as they relate to the loss of dopaminergic function and the appearance of cardinal motor symptoms. Our understanding of the role of dopamine in PD has led to the development of effective pharmacological treatments of the motor symptoms in the form of dopamine replacement therapy using levodopa and dopaminergic agonists. Much of the information concerning these drug treatments has been obtained using classical neurotoxic models that mimic dopamine depletion (e.g., 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine or MPTP, 6-hydroxydopamine, reserpine). However, PD is more than a disorder of the nigrostriatal dopamine pathway. Our understanding of the neuropathology of PD has undergone massive changes, with the discovery that mutations in α-synuclein cause a familial form of PD and that PD pathology may spread, affecting multiple neurotransmitter systems and brain regions. These new developments in our understanding of PD demand that we reconsider our animal models. While classic neurotoxin models have been useful for the development of effective symptomatic treatments for motor manifestations, the paucity of a valid animal model exhibiting the progressive development of multiple key features of PD pathophysiology and phenotype has impeded the search for neuroprotective therapies, capable of slowing or halting disease progression. RELEVANCE OF THE ARTICLE FOR PREDICTIVE PREVENTIVE AND PERSONALISED MEDICINE What characteristics would a good animal model of human PD have? In so much as is possible, a good model would exhibit as many behavioral, anatomical, biochemical, immunological, and pathological changes as are observed in the human condition, developing progressively, with clear, identifiable biomarkers along the way. Here, we review the BSSG rat model of PD, a novel environmental model of PD, with strong construct, face, and predictive validity. This model offers an effective tool for the screening of preventive therapies that may prove to be more predictive of their effects in human patients.
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Affiliation(s)
- Jackalina M. Van Kampen
- Neurodyn Life Sciences, NRC Building, 550 University Ave., Charlottetown, PE C1A 4P3 Canada
- Department of Biomedical Sciences, University of Prince Edward Island, Charlottetown, PE C1A 4P3 Canada
| | - Harold A. Robertson
- Neurodyn Life Sciences, NRC Building, 550 University Ave., Charlottetown, PE C1A 4P3 Canada
- Department of Biomedical Sciences, University of Prince Edward Island, Charlottetown, PE C1A 4P3 Canada
- Department of Pharmacology, Dalhousie University, Halifax, NS B3H 4R2 Canada
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