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Wang H, Tian Q, Zhang Y, Xi Y, Hu L, Yao K, Li J, Chen X. Celastrol regulates the oligomeric state and chaperone activity of αB-crystallin linked with protein homeostasis in the lens. FUNDAMENTAL RESEARCH 2024; 4:394-400. [PMID: 38933503 PMCID: PMC11197752 DOI: 10.1016/j.fmre.2022.05.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2021] [Revised: 05/16/2022] [Accepted: 05/17/2022] [Indexed: 10/18/2022] Open
Abstract
Protein misfolding and aggregation are crucial pathogenic factors for cataracts, which are the leading cause of visual impairment worldwide. α-crystallin, as a small molecular chaperone, is involved in preventing protein misfolding and maintaining lens transparency. The chaperone activity of α-crystallin depends on its oligomeric state. Our previous work identified a natural compound, celastrol, which could regulate the oligomeric state of αB-crystallin. In this work, based on the UNcle and SEC analysis, we found that celastrol induced αB-crystallin to form large oligomers. Large oligomer formation enhanced the chaperone activity of αB-crystallin and prevented aggregation of the cataract-causing mutant βA3-G91del. The interactions between αB-crystallin and celastrol were detected by the FRET (Fluorescence Resonance Energy Transfer) technique, and verified by molecular docking. At least 9 binding patterns were recognized, and some binding sites covered the groove structure of αB-crystallin. Interestingly, αB-R120G, a cataract-causing mutation located at the groove structure, and celastrol can decrease the aggregates of αB-R120G. Overall, our results suggested celastrol not only promoted the formation of large αB-crystallin oligomers, which enhanced its chaperone activity, but also bound to the groove structure of its α-crystallin domain to maintain its structural stability. Celastrol might serve as a chemical and pharmacological chaperone for cataract treatment.
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Affiliation(s)
- Huaxia Wang
- Eye Center of the Second Affiliated Hospital, Zhejiang University School of Medicine, 88 Jiefang Road, Hangzhou 310009, China
- Institute of Translational Medicine, Zhejiang University School of Medicine, 268 Kaixuan Road, Hangzhou 310020, China
| | - Qing Tian
- Eye Center of the Second Affiliated Hospital, Zhejiang University School of Medicine, 88 Jiefang Road, Hangzhou 310009, China
- Institute of Translational Medicine, Zhejiang University School of Medicine, 268 Kaixuan Road, Hangzhou 310020, China
| | - Ying Zhang
- Eye Center of the Second Affiliated Hospital, Zhejiang University School of Medicine, 88 Jiefang Road, Hangzhou 310009, China
- Institute of Translational Medicine, Zhejiang University School of Medicine, 268 Kaixuan Road, Hangzhou 310020, China
| | - Yibo Xi
- State Key Laboratory of Membrane Biology, School of Life Sciences, Tsinghua University, Beijing 100084, China
| | - Lidan Hu
- The Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou 310052, China
| | - Ke Yao
- Eye Center of the Second Affiliated Hospital, Zhejiang University School of Medicine, 88 Jiefang Road, Hangzhou 310009, China
| | - Jingyuan Li
- Zhejiang Province Key Laboratory of Quantum Technology and Device, Department of Physics, Zhejiang University, Zheda Road 38, Hangzhou 310027, China
| | - Xiangjun Chen
- Eye Center of the Second Affiliated Hospital, Zhejiang University School of Medicine, 88 Jiefang Road, Hangzhou 310009, China
- Institute of Translational Medicine, Zhejiang University School of Medicine, 268 Kaixuan Road, Hangzhou 310020, China
- State Key Laboratory of Membrane Biology, School of Life Sciences, Tsinghua University, Beijing 100084, China
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Zi D, Song YY, Lu TT, Kise M, Kato A, Wang JZ, Jia YM, Li YX, Fleet GWJ, Yu CY. Nanomolar β-glucosidase and β-galactosidase inhibition by enantiomeric α-1-C-alkyl-1,4-dideoxy-1,4-imino-arabinitol derivatives. Eur J Med Chem 2023; 247:115056. [PMID: 36603505 DOI: 10.1016/j.ejmech.2022.115056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Revised: 12/22/2022] [Accepted: 12/24/2022] [Indexed: 12/29/2022]
Abstract
A series of α-1-C-alkyl DAB (1,4-dideoxy-1,4-imino-d-arabinitol) and LAB (1,4-dideoxy-1,4-imino-l-arabinitol) derivatives with aryl substituents have been designed as analogues of broussonetine W (12), and assayed as glycosidase inhibitors. While the inhibition spectrum of α-1-C-alkyl DAB derivative 16 showed a good correlation to that of broussonetine W (12), introduction of substituents on the terminal aryl (17a-f) or hydroxyl groups at C-1' position of the alkyl chains (18a-e) decreased their α-glucosidase inhibitions but greatly improved their inhibitions of bovine liver β-glucosidase and β-galactosidase. Furthermore, epimerization of C-1' configurations of compounds 18a-e clearly lowered their inhibition potency of bovine liver β-glucosidase and β-galactosidase. Notably, some of the α-1-C-alkyl DAB derivatives were also found to have potent human lysosome β-glucosidase inhibitions. In contrast, enantiomers of compounds 18a-e and 1'-epi-18a-e generally showed increased α-glucosidase inhibitions, but sharply decreased bovine liver β-glucosidase and β-galactosidase inhibitions. Molecular docking calculations unveiled the novel two set of binding modes for each series of compounds; introduction of C-1' hydroxyl altered the conformations of the pyrrolidine rings and orientation of their long chains, resulting in improved accommodation in the hydrophobic grooves. The compounds reported herein are very potent β-glucosidase and β-galactosidase inhibitions with novel binding mode; and the structure-activity relationship provides guidance for design and development of more pyrrolidine pharmacological chaperones for lysosomal storage diseases.
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Affiliation(s)
- Dong Zi
- Beijing National Laboratory for Molecular Science (BNLMS), CAS Key Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Ying-Ying Song
- Beijing National Laboratory for Molecular Science (BNLMS), CAS Key Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China; Qilu University of Technology (Shandong Academy of Sciences), Shandong Analysis and Test Center, Laboratory of Immunology for Environment and Health, Jinan, 250014, Shandong, China
| | - Tian-Tian Lu
- Beijing National Laboratory for Molecular Science (BNLMS), CAS Key Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Maki Kise
- Department of Hospital Pharmacy, University of Toyama, 2630 Sugitani, Toyama, 930-0194, Japan
| | - Atsushi Kato
- Department of Hospital Pharmacy, University of Toyama, 2630 Sugitani, Toyama, 930-0194, Japan.
| | - Jun-Zhe Wang
- Beijing National Laboratory for Molecular Science (BNLMS), CAS Key Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Yue-Mei Jia
- Beijing National Laboratory for Molecular Science (BNLMS), CAS Key Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Yi-Xian Li
- Beijing National Laboratory for Molecular Science (BNLMS), CAS Key Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China; University of Chinese Academy of Sciences, Beijing, 100049, China.
| | - George W J Fleet
- Chemistry Research Laboratory, Department of Chemistry, University of Oxford, Mansfield Road, Oxford, OX1 3TA, UK
| | - Chu-Yi Yu
- Beijing National Laboratory for Molecular Science (BNLMS), CAS Key Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China; University of Chinese Academy of Sciences, Beijing, 100049, China.
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Kato A, Nakagome I, Kanekiyo U, Lu TT, Li YX, Yoshimura K, Kishida M, Shinzawa K, Yoshida T, Tanaka N, Jia YM, Nash RJ, Fleet GWJ, Yu CY. 5-C-Branched Deoxynojirimycin: Strategy for Designing a 1-Deoxynojirimycin-Based Pharmacological Chaperone with a Nanomolar Affinity for Pompe Disease. J Med Chem 2022; 65:2329-2341. [DOI: 10.1021/acs.jmedchem.1c01673] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Atsushi Kato
- Department of Hospital Pharmacy, University of Toyama, 2630 Sugitani, Toyama 930-0194, Japan
| | - Izumi Nakagome
- School of Pharmacy, Kitasato University, Tokyo 108-8641, Japan
| | - Uta Kanekiyo
- Department of Hospital Pharmacy, University of Toyama, 2630 Sugitani, Toyama 930-0194, Japan
| | - Tian-Tian Lu
- Beijing National Laboratory for Molecular Science (BNLMS), CAS Key Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yi-Xian Li
- Beijing National Laboratory for Molecular Science (BNLMS), CAS Key Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Kosuke Yoshimura
- Department of Hospital Pharmacy, University of Toyama, 2630 Sugitani, Toyama 930-0194, Japan
| | - Mana Kishida
- Department of Hospital Pharmacy, University of Toyama, 2630 Sugitani, Toyama 930-0194, Japan
| | - Kenta Shinzawa
- Department of Hospital Pharmacy, University of Toyama, 2630 Sugitani, Toyama 930-0194, Japan
| | - Tomoki Yoshida
- School of Pharmacy, Kitasato University, Tokyo 108-8641, Japan
| | - Nobutada Tanaka
- School of Pharmacy, Kitasato University, Tokyo 108-8641, Japan
| | - Yue-Mei Jia
- Beijing National Laboratory for Molecular Science (BNLMS), CAS Key Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Robert J. Nash
- Institute of Biological, Environmental and Rural Sciences / Phytoquest Limited, Plas Gogerddan, Aberystwyth, Ceredigion SY23 3EB, U.K
| | - George W. J. Fleet
- Chemistry Research Laboratory, Department of Chemistry, University of Oxford, Oxford OX1 3TA, U.K
| | - Chu-Yi Yu
- Beijing National Laboratory for Molecular Science (BNLMS), CAS Key Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
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Fernández-Pereira C, San Millán-Tejado B, Gallardo-Gómez M, Pérez-Márquez T, Alves-Villar M, Melcón-Crespo C, Fernández-Martín J, Ortolano S. Therapeutic Approaches in Lysosomal Storage Diseases. Biomolecules 2021; 11:biom11121775. [PMID: 34944420 PMCID: PMC8698519 DOI: 10.3390/biom11121775] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2021] [Revised: 11/23/2021] [Accepted: 11/24/2021] [Indexed: 02/07/2023] Open
Abstract
Lysosomal Storage Diseases are multisystemic disorders determined by genetic variants, which affect the proteins involved in lysosomal function and cellular metabolism. Different therapeutic approaches, which are based on the physiologic mechanisms that regulate lysosomal function, have been proposed for these diseases. Currently, enzyme replacement therapy, gene therapy, or small molecules have been approved or are under clinical development to treat lysosomal storage disorders. The present article reviews the main therapeutic strategies that have been proposed so far, highlighting possible limitations and future perspectives.
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Affiliation(s)
- Carlos Fernández-Pereira
- Rare Disease and Pediatric Medicine Group, Galicia Sur Health Research Institute (IIS Galicia Sur), SERGAS-UVIGO, 36312 Vigo, Spain; (C.F.-P.); (B.S.M.-T.); (M.G.-G.); (T.P.-M.); (M.A.-V.); (C.M.-C.); (J.F.-M.)
| | - Beatriz San Millán-Tejado
- Rare Disease and Pediatric Medicine Group, Galicia Sur Health Research Institute (IIS Galicia Sur), SERGAS-UVIGO, 36312 Vigo, Spain; (C.F.-P.); (B.S.M.-T.); (M.G.-G.); (T.P.-M.); (M.A.-V.); (C.M.-C.); (J.F.-M.)
| | - María Gallardo-Gómez
- Rare Disease and Pediatric Medicine Group, Galicia Sur Health Research Institute (IIS Galicia Sur), SERGAS-UVIGO, 36312 Vigo, Spain; (C.F.-P.); (B.S.M.-T.); (M.G.-G.); (T.P.-M.); (M.A.-V.); (C.M.-C.); (J.F.-M.)
| | - Tania Pérez-Márquez
- Rare Disease and Pediatric Medicine Group, Galicia Sur Health Research Institute (IIS Galicia Sur), SERGAS-UVIGO, 36312 Vigo, Spain; (C.F.-P.); (B.S.M.-T.); (M.G.-G.); (T.P.-M.); (M.A.-V.); (C.M.-C.); (J.F.-M.)
| | - Marta Alves-Villar
- Rare Disease and Pediatric Medicine Group, Galicia Sur Health Research Institute (IIS Galicia Sur), SERGAS-UVIGO, 36312 Vigo, Spain; (C.F.-P.); (B.S.M.-T.); (M.G.-G.); (T.P.-M.); (M.A.-V.); (C.M.-C.); (J.F.-M.)
| | - Cristina Melcón-Crespo
- Rare Disease and Pediatric Medicine Group, Galicia Sur Health Research Institute (IIS Galicia Sur), SERGAS-UVIGO, 36312 Vigo, Spain; (C.F.-P.); (B.S.M.-T.); (M.G.-G.); (T.P.-M.); (M.A.-V.); (C.M.-C.); (J.F.-M.)
- Department of Pediatrics, Hospital Álvaro Cunqueiro, SERGAS, 36213 Vigo, Spain
| | - Julián Fernández-Martín
- Rare Disease and Pediatric Medicine Group, Galicia Sur Health Research Institute (IIS Galicia Sur), SERGAS-UVIGO, 36312 Vigo, Spain; (C.F.-P.); (B.S.M.-T.); (M.G.-G.); (T.P.-M.); (M.A.-V.); (C.M.-C.); (J.F.-M.)
- Department of Internal Medicine, Hospital Álvaro Cunqueiro, SERGAS, 36213 Vigo, Spain
| | - Saida Ortolano
- Rare Disease and Pediatric Medicine Group, Galicia Sur Health Research Institute (IIS Galicia Sur), SERGAS-UVIGO, 36312 Vigo, Spain; (C.F.-P.); (B.S.M.-T.); (M.G.-G.); (T.P.-M.); (M.A.-V.); (C.M.-C.); (J.F.-M.)
- Correspondence: ; Tel.: +34-986217466
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Rodríguez-Castejón J, Alarcia-Lacalle A, Gómez-Aguado I, Vicente-Pascual M, Solinís Aspiazu MÁ, del Pozo-Rodríguez A, Rodríguez-Gascón A. α-Galactosidase A Augmentation by Non-Viral Gene Therapy: Evaluation in Fabry Disease Mice. Pharmaceutics 2021; 13:771. [PMID: 34064206 PMCID: PMC8224287 DOI: 10.3390/pharmaceutics13060771] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2021] [Revised: 05/18/2021] [Accepted: 05/19/2021] [Indexed: 12/28/2022] Open
Abstract
Fabry disease (FD) is a monogenic X-linked lysosomal storage disorder caused by a deficiency in the lysosomal enzyme α-Galactosidase A (α-Gal A). It is a good candidate to be treated with gene therapy, in which moderately low levels of enzyme activity should be sufficient for clinical efficacy. In the present work we have evaluated the efficacy of a non-viral vector based on solid lipid nanoparticles (SLN) to increase α-Gal A activity in an FD mouse model after intravenous administration. The SLN-based vector incremented α-Gal A activity to about 10%, 15%, 20% and 14% of the levels of the wild-type in liver, spleen, heart and kidney, respectively. In addition, the SLN-based vector significantly increased α-Gal A activity with respect to the naked pDNA used as a control in plasma, heart and kidney. The administration of a dose per week for three weeks was more effective than a single-dose administration. Administration of the SLN-based vector did not increase liver transaminases, indicative of a lack of toxicity. Additional studies are necessary to optimize the efficacy of the system; however, these results reinforce the potential of lipid-based nanocarriers to treat FD by gene therapy.
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Affiliation(s)
- Julen Rodríguez-Castejón
- Pharmacokinetic, Nanotechnology and Gene Therapy Group (Pharma Nano Gene), Centro de investigación Lascaray ikergunea, Faculty of Pharmacy, University of the Basque Country UPV/EHU, Paseo de la Universidad 7, 01006 Vitoria-Gasteiz, Spain; (J.R.-C.); (A.A.-L.); (I.G.-A.); (M.V.-P.); (M.Á.S.A.)
| | - Ana Alarcia-Lacalle
- Pharmacokinetic, Nanotechnology and Gene Therapy Group (Pharma Nano Gene), Centro de investigación Lascaray ikergunea, Faculty of Pharmacy, University of the Basque Country UPV/EHU, Paseo de la Universidad 7, 01006 Vitoria-Gasteiz, Spain; (J.R.-C.); (A.A.-L.); (I.G.-A.); (M.V.-P.); (M.Á.S.A.)
| | - Itziar Gómez-Aguado
- Pharmacokinetic, Nanotechnology and Gene Therapy Group (Pharma Nano Gene), Centro de investigación Lascaray ikergunea, Faculty of Pharmacy, University of the Basque Country UPV/EHU, Paseo de la Universidad 7, 01006 Vitoria-Gasteiz, Spain; (J.R.-C.); (A.A.-L.); (I.G.-A.); (M.V.-P.); (M.Á.S.A.)
| | - Mónica Vicente-Pascual
- Pharmacokinetic, Nanotechnology and Gene Therapy Group (Pharma Nano Gene), Centro de investigación Lascaray ikergunea, Faculty of Pharmacy, University of the Basque Country UPV/EHU, Paseo de la Universidad 7, 01006 Vitoria-Gasteiz, Spain; (J.R.-C.); (A.A.-L.); (I.G.-A.); (M.V.-P.); (M.Á.S.A.)
| | - María Ángeles Solinís Aspiazu
- Pharmacokinetic, Nanotechnology and Gene Therapy Group (Pharma Nano Gene), Centro de investigación Lascaray ikergunea, Faculty of Pharmacy, University of the Basque Country UPV/EHU, Paseo de la Universidad 7, 01006 Vitoria-Gasteiz, Spain; (J.R.-C.); (A.A.-L.); (I.G.-A.); (M.V.-P.); (M.Á.S.A.)
| | - Ana del Pozo-Rodríguez
- Pharmacokinetic, Nanotechnology and Gene Therapy Group (Pharma Nano Gene), Centro de investigación Lascaray ikergunea, Faculty of Pharmacy, University of the Basque Country UPV/EHU, Paseo de la Universidad 7, 01006 Vitoria-Gasteiz, Spain; (J.R.-C.); (A.A.-L.); (I.G.-A.); (M.V.-P.); (M.Á.S.A.)
| | - Alicia Rodríguez-Gascón
- Pharmacokinetic, Nanotechnology and Gene Therapy Group (Pharma Nano Gene), Centro de investigación Lascaray ikergunea, Faculty of Pharmacy, University of the Basque Country UPV/EHU, Paseo de la Universidad 7, 01006 Vitoria-Gasteiz, Spain; (J.R.-C.); (A.A.-L.); (I.G.-A.); (M.V.-P.); (M.Á.S.A.)
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How to make an undruggable enzyme druggable: lessons from ras proteins. ADVANCES IN PROTEIN CHEMISTRY AND STRUCTURAL BIOLOGY 2020. [PMID: 32951811 DOI: 10.1016/bs.apcsb.2020.05.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/29/2023]
Abstract
Significant advances have been made toward discovering allosteric inhibitors for challenging drug targets such as the Ras family of membrane-associated signaling proteins. Malfunction of Ras proteins due to somatic mutations is associated with up to a quarter of all human cancers. Computational techniques have played critical roles in identifying and characterizing allosteric ligand-binding sites on these proteins, and to screen ligand libraries against those sites. These efforts, combined with a wide range of biophysical, structural, biochemical and cell biological experiments, are beginning to yield promising inhibitors to treat malignancies associated with mutated Ras proteins. In this chapter, we discuss some of these developments and how the lessons learned from Ras might be applied to similar other challenging drug targets.
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Levstek T, Vujkovac B, Trebusak Podkrajsek K. Biomarkers of Fabry Nephropathy: Review and Future Perspective. Genes (Basel) 2020; 11:genes11091091. [PMID: 32962051 PMCID: PMC7564978 DOI: 10.3390/genes11091091] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Revised: 09/09/2020] [Accepted: 09/16/2020] [Indexed: 12/22/2022] Open
Abstract
Progressive nephropathy is one of the main features of Fabry disease, which largely contributes to the overall morbidity and mortality burden of the disease. Due to the lack of specific biomarkers, the heterogeneity of the disease, and unspecific symptoms, diagnosis is often delayed. Clinical presentation in individual patients varies widely, even in patients from the same family carrying the same pathogenic GLA variant. Therefore, it is reasonable to anticipate that additional genomic, transcriptomic, proteomic, and metabolomics factors influence the manifestation and progression of the disease. The aim of this article is to provide an overview of nephropathy in Fabry patients and the biomarkers currently used in the diagnosis and follow-up. Current biomarkers are associated with late signs of kidney damage. Therefore, there is a need to identify biomarkers associated with early stages of kidney damage that would enable early diagnosis, which is crucial for effective treatment and prevention of severe irreversible complications. Recent advances in sequencing and -omics technologies have led to several studies investigating new biomarkers. We will provide an overview of the novel biomarkers, critically evaluate their clinical utility, and propose future perspectives, which we believe might be in their integration.
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Affiliation(s)
- Tina Levstek
- Institute of Biochemistry, Faculty of Medicine, University of Ljubljana, Vrazov trg 2, 1000 Ljubljana, Slovenia;
| | - Bojan Vujkovac
- Centre for Fabry Disease, General Hospital Slovenj Gradec, Gosposvetska cesta 1, 2380 Slovenj Gradec, Slovenia;
| | - Katarina Trebusak Podkrajsek
- Institute of Biochemistry, Faculty of Medicine, University of Ljubljana, Vrazov trg 2, 1000 Ljubljana, Slovenia;
- Clinical Institute for Special Laboratory Diagnostics, University Children’s Hospital, University Medical Centre Ljubljana, Vrazov trg 1, 1000 Ljubljana, Slovenia
- Correspondence:
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Strategy for Designing Selective Lysosomal Acid α-Glucosidase Inhibitors: Binding Orientation and Influence on Selectivity. Molecules 2020; 25:molecules25122843. [PMID: 32575625 PMCID: PMC7357040 DOI: 10.3390/molecules25122843] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Revised: 06/12/2020] [Accepted: 06/18/2020] [Indexed: 11/21/2022] Open
Abstract
Deoxynojirimycin (DNJ) is the archetypal iminosugar, in which the configuration of the hydroxyl groups in the piperidine ring truly mimic those of d-glucopyranose; DNJ and derivatives have beneficial effects as therapeutic agents, such as anti-diabetic and antiviral agents, and pharmacological chaperones for genetic disorders, because they have been shown to inhibit α-glucosidases from various sources. However, attempts to design a better molecule based solely on structural similarity cannot produce selectivity between α-glucosidases that are localized in multiple organs and tissues, because the differences of each sugar-recognition site are very subtle. In this study, we provide the first example of a design strategy for selective lysosomal acid α-glucosidase (GAA) inhibitors focusing on the alkyl chain storage site. Our design of α-1-C-heptyl-1,4-dideoxy-1,4-imino-l-arabinitol (LAB) produced a potent inhibitor of the GAA, with an IC50 value of 0.44 µM. It displayed a remarkable selectivity toward GAA (selectivity index value of 168.2). A molecular dynamic simulation study revealed that the ligand-binding conformation stability gradually improved with increasing length of the α-1-C-alkyl chain. It is noteworthy that α-1-C-heptyl-LAB formed clearly different interactions from DNJ and had favored hydrophobic interactions with Trp481, Phe525, and Met519 at the alkyl chain storage pocket of GAA. Moreover, a molecular docking study revealed that endoplasmic reticulum (ER) α-glucosidase II does not have enough space to accommodate these alkyl chains. Therefore, the design strategy focusing on the shape and acceptability of long alkyl chain at each α-glucosidase may lead to the creation of more selective and practically useful inhibitors.
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Oliveira JP, Nowak A, Barbey F, Torres M, Nunes JP, Teixeira-e-Costa F, Carvalho F, Sampaio S, Tavares I, Pereira O, Soares AL, Carmona C, Cardoso MT, Jurca-Simina IE, Spada M, Ferreira S, Germain DP. Fabry disease caused by the GLA p.Phe113Leu (p.F113L) variant: Natural history in males. Eur J Med Genet 2020; 63:103703. [DOI: 10.1016/j.ejmg.2019.103703] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2019] [Revised: 05/20/2019] [Accepted: 06/09/2019] [Indexed: 12/20/2022]
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Computational and modeling approaches to understand the impact of the Fabry's disease causing mutation (D92Y) on the interaction with pharmacological chaperone 1-deoxygalactonojirimycin (DGJ). MOLECULAR CHAPERONES IN HUMAN DISORDERS 2019; 114:341-407. [DOI: 10.1016/bs.apcsb.2018.10.009] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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11
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Kato A, Nakagome I, Nakagawa S, Kinami K, Adachi I, Jenkinson SF, Désiré J, Blériot Y, Nash RJ, Fleet GWJ, Hirono S. In silico analyses of essential interactions of iminosugars with the Hex A active site and evaluation of their pharmacological chaperone effects for Tay-Sachs disease. Org Biomol Chem 2018; 15:9297-9304. [PMID: 28959811 DOI: 10.1039/c7ob02281f] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
The affinity of a series of iminosugar-based inhibitors exhibiting various ring sizes toward Hex A and their essential interactions with the enzyme active site were investigated. All the Hex A-inhibiting iminosugars tested formed hydrogen bonds with Arg178, Asp322, Tyr421 and Glu462 and had the favorable cation-π interaction with Trp460. Among them, DMDP amide (6) proved to be the most potent competitive inhibitor with a Ki value of 0.041 μM. We analyzed the dynamic properties of both DMDP amide (6) and DNJNAc (1) in aqueous solution using molecular dynamics (MD) calculations; the distance of the interaction between Asp322 and 3-OH and Glu323 and 6-OH was important for stable interactions with Hex A, reducing fluctuations in the plasticity of the active site. DMDP amide (6) dose-dependently increased intracellular Hex A activity in the G269S mutant cells and restored Hex A activity up to approximately 43% of the wild type level; this effect clearly exceeded the border line treatment for Tay-Sachs disease, which is regarded as 10-15% of the wild type level. This is a significantly greater effect than that of pyrimethamine, which is currently in Phase 2 clinical trials. DMDP amide (6), therefore, represents a new promising pharmacological chaperone candidate for the treatment of Tay-Sachs disease.
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Affiliation(s)
- Atsushi Kato
- Department of Hospital Pharmacy, University of Toyama, 2630 Sugitani, Toyama 930-0194, Japan.
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Toupin A, Lavoie P, Arthus MF, Abaoui M, Boutin M, Fortier C, Ménard C, Bichet DG, Auray-Blais C. Analysis of globotriaosylceramide (Gb 3) isoforms/analogs in unfractionated leukocytes, B lymphocytes and monocytes from Fabry patients using ultra-high performance liquid chromatography/tandem mass spectrometry. Anal Chim Acta 2018. [PMID: 29530250 DOI: 10.1016/j.aca.2018.02.022] [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] [Indexed: 02/01/2023]
Abstract
Fabry disease is an X-linked lysosomal storage disorder with marked variability in the phenotype and genotype. Glycosphingolipids such as globotriaosylceramide (Gb3) isoforms/analogs, globotriaosylsphingosine (lyso-Gb3) and analogs, and galabiosylceramide (Ga2) isoforms/analogs may accumulate in biological fluids and different organs. The aims of this study were to: 1) develop/validate a novel UHPLC-MS/MS method for relative quantitation of Gb3 in leukocytes (unfractionated white blood cells), B lymphocytes and monocytes; 2) evaluate these biomarkers in a cohort of Fabry patients and healthy controls; and 3) assess correlations between these biomarkers, treatment and genotype. Whole blood, plasma and urine samples from 21 Fabry patients and 20 healthy controls were analyzed. Samples were purified by liquid-liquid extraction and analyzed by UHPLC-MS/MS in positive electrospray ionization. Methylated Gb3 isoforms were detected, showing that a methylation process occurs at the cellular level. Our results show that there were no significant differences in the distribution of the different Gb3 isoforms/analogs in blood cells between Fabry patients and healthy controls. In leukocyte, Gb3[(d18:1)(C14:0)], Gb3[(d18:1)(C16:0)], Gb3 [(d18:1)(C16:0)]Me, Gb3 [(d18:1)(C16:1)], Gb3 [(d18:1)(C18:0)], Gb3 [(d18:1)(C18:1)], Gb3 [(d18:1)(C20:1)], Gb3 [(d18:1)(C24:2)], Gb3 [(d18:1)(C26:1)] and total Gb3 allowed good discrimination between male Fabry patients and male controls, patients having higher biomarker levels than controls. Regarding B lymphocytes and monocytes, the same tendency was observed without reaching statistical significance. A positive concordance between mutation types and biomarker levels in white blood cells was established. Our results might provide a deeper mechanistic comprehension of the underlying biochemical processes of Gb3 biomarkers in white blood cells of Fabry patients.
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Affiliation(s)
- Amanda Toupin
- Division of Medical Genetics, Department of Pediatrics, Faculty of Medicine and Health Sciences, Université de Sherbrooke, CR-CHUS, Hospital Fleurimont, 3,001, 12th Avenue North, Sherbrooke, QC J1H 5N4, Canada
| | - Pamela Lavoie
- Division of Medical Genetics, Department of Pediatrics, Faculty of Medicine and Health Sciences, Université de Sherbrooke, CR-CHUS, Hospital Fleurimont, 3,001, 12th Avenue North, Sherbrooke, QC J1H 5N4, Canada
| | | | - Mona Abaoui
- Division of Medical Genetics, Department of Pediatrics, Faculty of Medicine and Health Sciences, Université de Sherbrooke, CR-CHUS, Hospital Fleurimont, 3,001, 12th Avenue North, Sherbrooke, QC J1H 5N4, Canada
| | - Michel Boutin
- Division of Medical Genetics, Department of Pediatrics, Faculty of Medicine and Health Sciences, Université de Sherbrooke, CR-CHUS, Hospital Fleurimont, 3,001, 12th Avenue North, Sherbrooke, QC J1H 5N4, Canada
| | - Carole Fortier
- Hôpital Sacré-Coeur, Clinical Research Unit, Montreal, QC H4J 1C5, Canada
| | - Claudia Ménard
- Hôpital Sacré-Coeur, Clinical Research Unit, Montreal, QC H4J 1C5, Canada
| | - Daniel G Bichet
- Hôpital Sacré-Coeur, Clinical Research Unit, Montreal, QC H4J 1C5, Canada; Department of Medicine Pharmacology and Physiology, Université de Montréal, Montreal, QC H4J 1C5, Canada
| | - Christiane Auray-Blais
- Division of Medical Genetics, Department of Pediatrics, Faculty of Medicine and Health Sciences, Université de Sherbrooke, CR-CHUS, Hospital Fleurimont, 3,001, 12th Avenue North, Sherbrooke, QC J1H 5N4, Canada.
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Graziano ACE, Pannuzzo G, Avola R, Cardile V. Chaperones as potential therapeutics for Krabbe disease. J Neurosci Res 2017; 94:1220-30. [PMID: 27638605 DOI: 10.1002/jnr.23755] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2016] [Revised: 03/24/2016] [Accepted: 04/04/2016] [Indexed: 12/12/2022]
Abstract
Krabbe's disease (KD) is an autosomal recessive, neurodegenerative disorder. It is classified among the lysosomal storage diseases (LSDs). It was first described in , but the genetic defect for the galactocerebrosidase (GALC) gene was not discovered until the beginning of the 1970s, 20 years before the GALC cloning. Recently, in 2011, the crystal structures of the GALC enzyme and the GALC-product complex were obtained. For this, compared with other LSDs, the research on possible therapeutic interventions is much more recent. Thus, it is not surprising that some treatment options are still under preclinical investigation, whereas their relevance for other pathologies of the same group has already been tested in clinical studies. This is specifically the case for pharmacological chaperone therapy (PCT), a promising strategy for selectively correcting defective protein folding and trafficking and for enhancing enzyme activity by small molecules. These compounds bind directly to a partially folded biosynthetic intermediate, stabilize the protein, and allow completion of the folding process to yield a functional protein. Here, we review the chaperones that have demonstrated potential therapeutics during preclinical studies for KD, underscoring the requirement to invigorate research for KD-addressed PCT that will benefit from recent insights into the molecular understanding of GALC structure, drug design, and development in cellular models. © 2016 Wiley Periodicals, Inc.
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Affiliation(s)
| | - Giovanna Pannuzzo
- Department of Biomedical and Biotechnological Science, Section of Physiology, University of Catania, Catania, Italy
| | - Rosanna Avola
- Department of Biomedical and Biotechnological Science, Section of Physiology, University of Catania, Catania, Italy
| | - Venera Cardile
- Department of Biomedical and Biotechnological Science, Section of Physiology, University of Catania, Catania, Italy.
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Sánchez-Fernández EM, García Fernández JM, Mellet CO. Glycomimetic-based pharmacological chaperones for lysosomal storage disorders: lessons from Gaucher, GM1-gangliosidosis and Fabry diseases. Chem Commun (Camb) 2016; 52:5497-515. [PMID: 27043200 DOI: 10.1039/c6cc01564f] [Citation(s) in RCA: 112] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Lysosomal storage disorders (LSDs) are often caused by mutations that destabilize native folding and impair the trafficking of enzymes, leading to premature endoplasmic reticulum (ER)-associated degradation, deficiencies of specific hydrolytic functions and aberrant storage of metabolites in the lysosomes. Enzyme replacement therapy (ERT) and substrate reduction therapy (SRT) are available for a few of these conditions, but most remain orphan. A main difficulty is that virtually all LSDs involve neurological decline and neither proteins nor the current SRT drugs can cross the blood-brain barrier. Twenty years ago a new therapeutic paradigm better suited for neuropathic LSDs was launched, namely pharmacological chaperone (PC) therapy. PCs are small molecules capable of binding to the mutant protein at the ER, inducing proper folding, restoring trafficking and increasing enzyme activity and substrate processing in the lysosome. In many LSDs the mutated protein is a glycosidase and the accumulated substrate is an oligo- or polysaccharide or a glycoconjugate, e.g. a glycosphingolipid. Although it might appear counterintuitive, substrate analogues (glycomimetics) behaving as competitive glycosidase inhibitors are good candidates to perform PC tasks. The advancements in the knowledge of the molecular basis of LSDs, including enzyme structures, binding modes, trafficking pathways and substrate processing mechanisms, have been put forward to optimize PC selectivity and efficacy. Moreover, the chemical versatility of glycomimetics and the variety of structures at hand allow simultaneous optimization of chaperone and pharmacokinetic properties. In this Feature Article we review the advancements made in this field in the last few years and the future outlook through the lessons taught by three archetypical LSDs: Gaucher disease, GM1-gangliosidosis and Fabry disease.
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Affiliation(s)
- Elena M Sánchez-Fernández
- Departamento de Química Orgánica, Facultad de Química, Universidad de Sevilla, Profesor García González 1, 41012, Sevilla, Spain.
| | - José M García Fernández
- Instituto de Investigaciones Químicas (IIQ), CSIC - Universidad de Sevilla, Avda. Américo Vespucio 49, 41092 Sevilla, Spain.
| | - Carmen Ortiz Mellet
- Departamento de Química Orgánica, Facultad de Química, Universidad de Sevilla, Profesor García González 1, 41012, Sevilla, Spain.
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Identification of Small Molecule Compounds for Pharmacological Chaperone Therapy of Aspartylglucosaminuria. Sci Rep 2016; 6:37583. [PMID: 27876883 PMCID: PMC5120323 DOI: 10.1038/srep37583] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2016] [Accepted: 11/02/2016] [Indexed: 12/16/2022] Open
Abstract
Aspartylglucosaminuria (AGU) is a lysosomal storage disorder that is caused by genetic deficiency of the enzyme aspartylglucosaminidase (AGA) which is involved in glycoprotein degradation. AGU is a progressive disorder that results in severe mental retardation in early adulthood. No curative therapy is currently available for AGU. We have here characterized the consequences of a novel AGU mutation that results in Thr122Lys exchange in AGA, and compared this mutant form to one carrying the worldwide most common AGU mutation, AGU-Fin. We show that T122K mutated AGA is expressed in normal amounts and localized in lysosomes, but exhibits low AGA activity due to impaired processing of the precursor molecule into subunits. Coexpression of T122K with wildtype AGA results in processing of the precursor into subunits, implicating that the mutation causes a local misfolding that prevents the precursor from becoming processed. Similar data were obtained for the AGU-Fin mutant polypeptide. We have here also identified small chemical compounds that function as chemical or pharmacological chaperones for the mutant AGA. Treatment of patient fibroblasts with these compounds results in increased AGA activity and processing, implicating that these substances may be suitable for chaperone mediated therapy for AGU.
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Stütz AE, Wrodnigg TM. Carbohydrate-Processing Enzymes of the Lysosome: Diseases Caused by Misfolded Mutants and Sugar Mimetics as Correcting Pharmacological Chaperones. Adv Carbohydr Chem Biochem 2016; 73:225-302. [PMID: 27816107 DOI: 10.1016/bs.accb.2016.08.002] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Lysosomal storage diseases are hereditary disorders caused by mutations on genes encoding for one of the more than fifty lysosomal enzymes involved in the highly ordered degradation cascades of glycans, glycoconjugates, and other complex biomolecules in the lysosome. Several of these metabolic disorders are associated with the absence or the lack of activity of carbohydrate-processing enzymes in this cell compartment. In a recently introduced therapy concept, for susceptible mutants, small substrate-related molecules (so-called pharmacological chaperones), such as reversible inhibitors of these enzymes, may serve as templates for the correct folding and transport of the respective protein mutant, thus improving its concentration and, consequently, its enzymatic activity in the lysosome. Carbohydrate-processing enzymes in the lysosome, related lysosomal diseases, and the scope and limitations of reported reversible inhibitors as pharmacological chaperones are discussed with a view to possibly extending and improving research efforts in this area of orphan diseases.
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Affiliation(s)
- Arnold E Stütz
- Glycogroup, Institute of Organic Chemistry, Graz University of Technology, Graz, Austria
| | - Tanja M Wrodnigg
- Glycogroup, Institute of Organic Chemistry, Graz University of Technology, Graz, Austria
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17
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Coutinho MF, Santos JI, Alves S. Less Is More: Substrate Reduction Therapy for Lysosomal Storage Disorders. Int J Mol Sci 2016; 17:ijms17071065. [PMID: 27384562 PMCID: PMC4964441 DOI: 10.3390/ijms17071065] [Citation(s) in RCA: 69] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2016] [Revised: 06/24/2016] [Accepted: 06/27/2016] [Indexed: 12/11/2022] Open
Abstract
Lysosomal storage diseases (LSDs) are a group of rare, life-threatening genetic disorders, usually caused by a dysfunction in one of the many enzymes responsible for intralysosomal digestion. Even though no cure is available for any LSD, a few treatment strategies do exist. Traditionally, efforts have been mainly targeting the functional loss of the enzyme, by injection of a recombinant formulation, in a process called enzyme replacement therapy (ERT), with no impact on neuropathology. This ineffectiveness, together with its high cost and lifelong dependence is amongst the main reasons why additional therapeutic approaches are being (and have to be) investigated: chaperone therapy; gene enhancement; gene therapy; and, alternatively, substrate reduction therapy (SRT), whose aim is to prevent storage not by correcting the original enzymatic defect but, instead, by decreasing the levels of biosynthesis of the accumulating substrate(s). Here we review the concept of substrate reduction, highlighting the major breakthroughs in the field and discussing the future of SRT, not only as a monotherapy but also, especially, as complementary approach for LSDs.
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Affiliation(s)
- Maria Francisca Coutinho
- Department of Human Genetics, Research and Development Unit, National Health Institute Doutor Ricardo Jorge, Rua Alexandre Herculano, 321 4000-055 Porto, Portugal.
| | - Juliana Inês Santos
- Department of Human Genetics, Research and Development Unit, National Health Institute Doutor Ricardo Jorge, Rua Alexandre Herculano, 321 4000-055 Porto, Portugal.
| | - Sandra Alves
- Department of Human Genetics, Research and Development Unit, National Health Institute Doutor Ricardo Jorge, Rua Alexandre Herculano, 321 4000-055 Porto, Portugal.
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18
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Investigation of original multivalent iminosugars as pharmacological chaperones for the treatment of Gaucher disease. Carbohydr Res 2016; 429:98-104. [DOI: 10.1016/j.carres.2016.03.007] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2015] [Revised: 03/08/2016] [Accepted: 03/10/2016] [Indexed: 12/27/2022]
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19
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Ranieri M, Bedini G, Parati EA, Bersano A. Fabry Disease: Recognition, Diagnosis, and Treatment of Neurological Features. Curr Treat Options Neurol 2016; 18:33. [DOI: 10.1007/s11940-016-0414-5] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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20
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Cabrera I, Abasolo I, Corchero JL, Elizondo E, Gil PR, Moreno E, Faraudo J, Sala S, Bueno D, González-Mira E, Rivas M, Melgarejo M, Pulido D, Albericio F, Royo M, Villaverde A, García-Parajo MF, Schwartz S, Ventosa N, Veciana J. α-Galactosidase-A Loaded-Nanoliposomes with Enhanced Enzymatic Activity and Intracellular Penetration. Adv Healthc Mater 2016; 5:829-40. [PMID: 26890358 DOI: 10.1002/adhm.201500746] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2015] [Revised: 12/03/2015] [Indexed: 12/19/2022]
Abstract
Lysosomal storage disorders (LSD) are caused by lysosomal dysfunction usually as a consequence of deficiency of a single enzyme required for the metabolism of macromolecules, such as lipids, glycoproteins, and mucopolysaccharides. For instance, the lack of α-galactosidase A (GLA) activity in Fabry disease patients causes the accumulation of glycosphingolipids in the vasculature leading to multiple organ pathology. Enzyme replacement therapy, which is the most common treatment of LSD, exhibits several drawbacks mainly related to the instability and low efficacy of the exogenously administered therapeutic enzyme. In this work, the unprecedented increased enzymatic activity and intracellular penetration achieved by the association of a human recombinant GLA to nanoliposomes functionalized with Arginine-Glycine-Aspartic acid (RGD) peptides is reported. Moreover, these new GLA loaded nanoliposomes lead to a higher efficacy in the reduction of the GLA substrate named globotriasylceramide in a cellular model of Fabry disease, than that achieved by the same concentration of the free enzyme. The preparation of these new liposomal formulations by DELOS-SUSP, based on the depressurization of a CO2 -expanded liquid organic solution, shows the great potential of this CO2 -based methodology for the one-step production of protein-nanoliposome conjugates as bioactive nanomaterials with therapeutic interest.
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Affiliation(s)
- Ingrid Cabrera
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC); Campus Universitari de Bellaterra; 08193 Cerdanyola del Vallès Spain
- Centro de Investigación Biomédica en Red-Bioingeniería Biomateriales y Nanomedicina (CIBER-BBN); Spain
| | - Ibane Abasolo
- Centro de Investigación Biomédica en Red-Bioingeniería Biomateriales y Nanomedicina (CIBER-BBN); Spain
- CIBBIM-Nanomedicine; Vall d'Hebron Institut de Recerca (VHIR); Universitat Autònoma de Barcelona; 08035 Barcelona Spain
| | - José L. Corchero
- Centro de Investigación Biomédica en Red-Bioingeniería Biomateriales y Nanomedicina (CIBER-BBN); Spain
- Departament de Genètica i de Microbiologia; Institut de Biotecnologia i de Biomedicina; Universitat Autònoma de Barcelona; 08193 Bellaterra Spain
| | - Elisa Elizondo
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC); Campus Universitari de Bellaterra; 08193 Cerdanyola del Vallès Spain
- Centro de Investigación Biomédica en Red-Bioingeniería Biomateriales y Nanomedicina (CIBER-BBN); Spain
| | - Pilar Rivera Gil
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC); Campus Universitari de Bellaterra; 08193 Cerdanyola del Vallès Spain
- Centro de Investigación Biomédica en Red-Bioingeniería Biomateriales y Nanomedicina (CIBER-BBN); Spain
| | - Evelyn Moreno
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC); Campus Universitari de Bellaterra; 08193 Cerdanyola del Vallès Spain
- Centro de Investigación Biomédica en Red-Bioingeniería Biomateriales y Nanomedicina (CIBER-BBN); Spain
| | - Jordi Faraudo
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC); Campus Universitari de Bellaterra; 08193 Cerdanyola del Vallès Spain
| | - Santi Sala
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC); Campus Universitari de Bellaterra; 08193 Cerdanyola del Vallès Spain
- Centro de Investigación Biomédica en Red-Bioingeniería Biomateriales y Nanomedicina (CIBER-BBN); Spain
| | - Dolores Bueno
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC); Campus Universitari de Bellaterra; 08193 Cerdanyola del Vallès Spain
- Centro de Investigación Biomédica en Red-Bioingeniería Biomateriales y Nanomedicina (CIBER-BBN); Spain
| | - Elisabet González-Mira
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC); Campus Universitari de Bellaterra; 08193 Cerdanyola del Vallès Spain
- Centro de Investigación Biomédica en Red-Bioingeniería Biomateriales y Nanomedicina (CIBER-BBN); Spain
| | - Merche Rivas
- ICFO-Institut de Ciencies Fotoniques; Mediterranean Technology Park; 08860 Castelldefels Barcelona Spain
| | - Marta Melgarejo
- Centro de Investigación Biomédica en Red-Bioingeniería Biomateriales y Nanomedicina (CIBER-BBN); Spain
- Combinatorial Chemistry Unit; Barcelona Science Park; Baldiri Reixac 10 08028 Barcelona Spain
| | - Daniel Pulido
- Centro de Investigación Biomédica en Red-Bioingeniería Biomateriales y Nanomedicina (CIBER-BBN); Spain
- Combinatorial Chemistry Unit; Barcelona Science Park; Baldiri Reixac 10 08028 Barcelona Spain
| | - Fernando Albericio
- Centro de Investigación Biomédica en Red-Bioingeniería Biomateriales y Nanomedicina (CIBER-BBN); Spain
- Institute for Research in Biomedicine; Barcelona Science Park; 08028 Barcelona Spain
- Department of Organic Chemistry; University of Barcelona; 08028 Barcelona Spain
| | - Miriam Royo
- Centro de Investigación Biomédica en Red-Bioingeniería Biomateriales y Nanomedicina (CIBER-BBN); Spain
- Combinatorial Chemistry Unit; Barcelona Science Park; Baldiri Reixac 10 08028 Barcelona Spain
| | - Antonio Villaverde
- Centro de Investigación Biomédica en Red-Bioingeniería Biomateriales y Nanomedicina (CIBER-BBN); Spain
- Departament de Genètica i de Microbiologia; Institut de Biotecnologia i de Biomedicina; Universitat Autònoma de Barcelona; 08193 Bellaterra Spain
| | - Maria F. García-Parajo
- ICFO-Institut de Ciencies Fotoniques; Mediterranean Technology Park; 08860 Castelldefels Barcelona Spain
- ICREA-Institució Catalana de Recerca i Estudis Avançats; 08010 Barcelona Spain
| | - Simó Schwartz
- Centro de Investigación Biomédica en Red-Bioingeniería Biomateriales y Nanomedicina (CIBER-BBN); Spain
- CIBBIM-Nanomedicine; Vall d'Hebron Institut de Recerca (VHIR); Universitat Autònoma de Barcelona; 08035 Barcelona Spain
| | - Nora Ventosa
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC); Campus Universitari de Bellaterra; 08193 Cerdanyola del Vallès Spain
- Centro de Investigación Biomédica en Red-Bioingeniería Biomateriales y Nanomedicina (CIBER-BBN); Spain
| | - Jaume Veciana
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC); Campus Universitari de Bellaterra; 08193 Cerdanyola del Vallès Spain
- Centro de Investigación Biomédica en Red-Bioingeniería Biomateriales y Nanomedicina (CIBER-BBN); Spain
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21
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Blanz J, Saftig P. Parkinson's disease: acid-glucocerebrosidase activity and alpha-synuclein clearance. J Neurochem 2016; 139 Suppl 1:198-215. [PMID: 26860955 DOI: 10.1111/jnc.13517] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2015] [Revised: 12/07/2015] [Accepted: 12/09/2015] [Indexed: 12/27/2022]
Abstract
The role of mutations in the gene GBA1 encoding the lysosomal hydrolase β-glucocerebrosidase for the development of synucleinopathies, such as Parkinson's disease and dementia with Lewy bodies, was only very recently uncovered. The knowledge obtained from the study of carriers or patients suffering from Gaucher disease (a common lysosomal storage disorder because of GBA1 mutations) is of particular importance for understanding the role of the enzyme and its catabolic pathway in the development of synucleinopathies. Decreased activity of β-glucocerebrosidase leads to lysosomal dysfunction and the accumulation of its substrate glucosylceramide and related lipid derivatives. Glucosylceramide is suggested to stabilize toxic oligomeric forms of α-synuclein that negatively influence the activity of β-glucocerebrosidase and to partially block export of newly synthesized β-glucocerebrosidase from the endoplasmic reticulum to late endocytic compartments, amplifying the pathological effects of α-synuclein and ultimately resulting in neuronal cell death. This pathogenic molecular feedback loop and most likely other factors (such as impaired endoplasmic reticulum-associated degradation, activation of the unfolded protein response and dysregulation of calcium homeostasis induced by misfolded GC mutants) are involved in shifting the cellular homeostasis from monomeric α-synuclein towards oligomeric neurotoxic and aggregated forms, which contribute to Parkinson's disease progression. From a therapeutic point of view, strategies aiming to increase either the expression, stability or delivery of the β-glucocerebrosidase to lysosomes are likely to decrease the α-synuclein burden and may be useful for an in depth evaluation at the organismal level. Lysosomes are critical for protein and lipid homeostasis. Recent research revealed that dysfunction of this organelle contributes to the development of neurodegenerative diseases such as Parkinson's disease (PD). Mutations in the lysosomal hydrolase β-glucocerebrosidase (GBA1) are a major risk factor for the development of PD and the molecular events linked to the reduced activity of GBA1 and the pathological accumulation of lipids and α-synuclein are just at the beginning to be understood. New therapeutic concepts in regards to how to increase the expression, stability, or delivery of β-glucocerebrosidase to lysosomes are currently developed. This article is part of a special issue on Parkinson disease.
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Affiliation(s)
- Judith Blanz
- Institut für Biochemie, Christian-Albrechts-Universität zu Kiel, Kiel, Germany
| | - Paul Saftig
- Institut für Biochemie, Christian-Albrechts-Universität zu Kiel, Kiel, Germany.
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22
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Front S, Gallienne E, Charollais-Thoenig J, Demotz S, Martin OR. N-Alkyl-, 1-C-Alkyl-, and 5-C-Alkyl-1,5-dideoxy-1,5-imino-(l)-ribitols as Galactosidase Inhibitors. ChemMedChem 2015; 11:133-41. [DOI: 10.1002/cmdc.201500485] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2015] [Indexed: 12/13/2022]
Affiliation(s)
- Sophie Front
- Institut de Chimie Organique et Analytique (ICOA); UMR 7311; Université d'Orléans; Centre National de la Recherche Scientifique (CNRS); Rue de Chartres 45067 Orléans France
| | - Estelle Gallienne
- Institut de Chimie Organique et Analytique (ICOA); UMR 7311; Université d'Orléans; Centre National de la Recherche Scientifique (CNRS); Rue de Chartres 45067 Orléans France
| | | | | | - Olivier R. Martin
- Institut de Chimie Organique et Analytique (ICOA); UMR 7311; Université d'Orléans; Centre National de la Recherche Scientifique (CNRS); Rue de Chartres 45067 Orléans France
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23
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Makley LN, McMenimen KA, DeVree BT, Goldman JW, McGlasson BN, Rajagopal P, Dunyak BM, McQuade TJ, Thompson AD, Sunahara R, Klevit RE, Andley UP, Gestwicki JE. Pharmacological chaperone for α-crystallin partially restores transparency in cataract models. Science 2015; 350:674-7. [PMID: 26542570 DOI: 10.1126/science.aac9145] [Citation(s) in RCA: 177] [Impact Index Per Article: 19.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Cataracts reduce vision in 50% of individuals over 70 years of age and are a common form of blindness worldwide. Cataracts are caused when damage to the major lens crystallin proteins causes their misfolding and aggregation into insoluble amyloids. Using a thermal stability assay, we identified a class of molecules that bind α-crystallins (cryAA and cryAB) and reversed their aggregation in vitro. The most promising compound improved lens transparency in the R49C cryAA and R120G cryAB mouse models of hereditary cataract. It also partially restored protein solubility in the lenses of aged mice in vivo and in human lenses ex vivo. These findings suggest an approach to treating cataracts by stabilizing α-crystallins.
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Affiliation(s)
- Leah N Makley
- Departments of Pathology, Biological Chemistry, and Medicinal Chemistry and the Life Sciences Institute, University of Michigan, Ann Arbor, MI, USA
| | - Kathryn A McMenimen
- Departments of Pathology, Biological Chemistry, and Medicinal Chemistry and the Life Sciences Institute, University of Michigan, Ann Arbor, MI, USA
| | - Brian T DeVree
- Department of Pharmacology, University of Michigan, Ann Arbor, MI, USA
| | - Joshua W Goldman
- Department of Ophthalmology and Visual Sciences, Washington University School of Medicine, St. Louis, MO, USA
| | - Brittney N McGlasson
- Department of Ophthalmology and Visual Sciences, Washington University School of Medicine, St. Louis, MO, USA
| | - Ponni Rajagopal
- Department of Biochemistry, University of Washington, Seattle, WA, USA
| | - Bryan M Dunyak
- Departments of Pathology, Biological Chemistry, and Medicinal Chemistry and the Life Sciences Institute, University of Michigan, Ann Arbor, MI, USA
| | - Thomas J McQuade
- Center for Chemical Genomics, University of Michigan, Ann Arbor, MI, USA
| | - Andrea D Thompson
- Departments of Pathology, Biological Chemistry, and Medicinal Chemistry and the Life Sciences Institute, University of Michigan, Ann Arbor, MI, USA
| | - Roger Sunahara
- Department of Pharmacology, University of Michigan, Ann Arbor, MI, USA
| | - Rachel E Klevit
- Department of Biochemistry, University of Washington, Seattle, WA, USA
| | - Usha P Andley
- Department of Ophthalmology and Visual Sciences, Washington University School of Medicine, St. Louis, MO, USA.
| | - Jason E Gestwicki
- Departments of Pathology, Biological Chemistry, and Medicinal Chemistry and the Life Sciences Institute, University of Michigan, Ann Arbor, MI, USA. Center for Chemical Genomics, University of Michigan, Ann Arbor, MI, USA.
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Personalized Pharmacoperones for Lysosomal Storage Disorder: Approach for Next-Generation Treatment. ADVANCES IN PROTEIN CHEMISTRY AND STRUCTURAL BIOLOGY 2015; 102:225-65. [PMID: 26827607 DOI: 10.1016/bs.apcsb.2015.10.001] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Lysosomal storage disorders (LSDs) are a collection of inborn errors of metabolic disorders affected by mutations in lysosome functional genes, commonly acid hydrolases. From the past decades, many approaches like enzyme replacement therapy, substrate reduction therapy are followed to treat these conditions. However, all these approaches have their own limitations. Proof-of-concept studies on pharmacological chaperone therapy (PCT) is now transformed into clinical practice to treat LSDs. Furthermore, it is narrowed with individuals to chaperone sensitive, specific mutations. Hence, personalizing the PCT will be a new direction to combat LSDs. In this review, we have discussed the available clinical strategies and pointed the light on how pharmacological chaperones can be personalized and hopeful to be a next-generation approach to address LSDs.
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Abaoui M, Boutin M, Lavoie P, Auray-Blais C. Tandem mass spectrometry multiplex analysis of methylated and non-methylated urinary Gb3 isoforms in Fabry disease patients. Clin Chim Acta 2015; 452:191-8. [PMID: 26593248 DOI: 10.1016/j.cca.2015.11.018] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2015] [Revised: 11/15/2015] [Accepted: 11/18/2015] [Indexed: 12/31/2022]
Abstract
BACKGROUND Fabry disease is a lysosomal storage disorder leading to the accumulation of glycosphingolipids in biological fluids and tissues. Globotriaosylceramide (Gb3) and globotriaosylsphingosine (lyso-Gb3) are currently used for Fabry screening and diagnosis. However, these biomarkers are not always increased in Fabry patients with residual enzyme activity. We recently identified 7 urinary methylated Gb3-related isoforms. The aims of this study were (1) to develop and validate a novel LC-MS/MS method for the relative quantification of methylated and non-methylated Gb3 isoforms normalized to creatinine, (2) to evaluate these biomarkers in Fabry patients and healthy controls, and (3) to assess correlations between biomarker urinary excretion with age, gender, treatment and genotype of patients. METHODS Urine samples from 150 Fabry patients and 95 healthy controls were analyzed. Samples were purified and injected in the tandem mass spectrometer working in positive electrospray ionization. Relative quantification was performed for 15 methylated and non-methylated Gb3 isoforms. RESULTS Significant correlations (p<0.001) were established between Gb3 isoform concentrations, gender and treatment. Five patients with the late-onset cardiac mutation p.N215S showed abnormal concentrations of methylated Gb3 isoforms compared to their non-methylated homologues. CONCLUSIONS Methylated Gb3 isoforms might be helpful urinary biomarkers for Fabry patients with late-onset cardiac variant mutations.
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Affiliation(s)
- Mona Abaoui
- Division of Medical Genetics, Department of Pediatrics, Faculty of Medicine and Health Sciences, Université de Sherbrooke, 3001, 12th Avenue North, Sherbrooke, Quebec J1H 5N4, Canada
| | - Michel Boutin
- Division of Medical Genetics, Department of Pediatrics, Faculty of Medicine and Health Sciences, Université de Sherbrooke, 3001, 12th Avenue North, Sherbrooke, Quebec J1H 5N4, Canada
| | - Pamela Lavoie
- Division of Medical Genetics, Department of Pediatrics, Faculty of Medicine and Health Sciences, Université de Sherbrooke, 3001, 12th Avenue North, Sherbrooke, Quebec J1H 5N4, Canada
| | - Christiane Auray-Blais
- Division of Medical Genetics, Department of Pediatrics, Faculty of Medicine and Health Sciences, Université de Sherbrooke, 3001, 12th Avenue North, Sherbrooke, Quebec J1H 5N4, Canada.
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Lukas J, Scalia S, Eichler S, Pockrandt AM, Dehn N, Cozma C, Giese AK, Rolfs A. Functional and Clinical Consequences of Novel α-Galactosidase A Mutations in Fabry Disease. Hum Mutat 2015; 37:43-51. [PMID: 26415523 DOI: 10.1002/humu.22910] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2015] [Accepted: 09/10/2015] [Indexed: 01/17/2023]
Abstract
Fabry disease (FD) is a rare metabolic disorder of glycosphingolipid storage caused by mutations in the GLA gene encoding lysosomal hydrolase α-galactosidase A (α-gal A). Recently, the diagnostic procedure for FD has advanced in several ways, through the development of a specific biomarker (lyso-Gb3) and the implementation of newborn screenings, which acted as a catalyst to augment general awareness of the disease. Heterologous over-expression of α-gal A variants and subsequent in vitro measurement of enzyme activity provided molecular data to elucidate the relationship between mutation, enzyme damage, lyso-Gb3 biomarker levels, and clinical phenotype. This knowledge is the foundation for improved counseling with regard to prognosis and therapeutic decisions. Herein, we resume the approach of in vitro characterization, with a further 73 mainly novel GLA gene mutations. Patient lyso-Gb3 data were available for most of the mutations. All mutations were tested for responsiveness to pharmacological chaperone treatment and phenotypic data for 61 hemizygous male and 116 heterozygous female patients carrying a mutation associated with ≥ 20% residual activity, formerly classified as "mild" variant, were collected in order to evaluate the pathogenicity. We conclude that a mild GLA variant is typically characterized by high residual enzyme activity and normal biomarker levels. We found evidence that these variants can still be classified as a distinctive, but milder, sub-type of FD.
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Affiliation(s)
- Jan Lukas
- Albrecht-Kossel-Institute for Neuroregeneration, Medical University Rostock, Rostock, Germany
| | - Simone Scalia
- Institute of Biomedicine and Molecular Immunology "A. Monroy" (IBIM), National Research Council (CNR), Palermo, Italy
| | | | - Anne-Marie Pockrandt
- Albrecht-Kossel-Institute for Neuroregeneration, Medical University Rostock, Rostock, Germany
| | - Nicole Dehn
- Albrecht-Kossel-Institute for Neuroregeneration, Medical University Rostock, Rostock, Germany
| | | | - Anne-Katrin Giese
- Albrecht-Kossel-Institute for Neuroregeneration, Medical University Rostock, Rostock, Germany
| | - Arndt Rolfs
- Albrecht-Kossel-Institute for Neuroregeneration, Medical University Rostock, Rostock, Germany
- Centogene AG, Rostock, Germany
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Ko Y, Lee C, Moon MH, Hong GR, Cheon CK, Lee JS. Unravelling the mechanism of action of enzyme replacement therapy in Fabry disease. J Hum Genet 2015; 61:143-9. [PMID: 26490183 DOI: 10.1038/jhg.2015.123] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2015] [Revised: 09/04/2015] [Accepted: 09/06/2015] [Indexed: 11/09/2022]
Abstract
Fabry disease (FD) is a rare X-linked recessive glycosphingolipid-storage disorder caused by deficient activity of the lysosomal enzyme alpha-galactosidase A. Intravenous enzyme replacement therapy (ERT) has been used to supplement deficient enzyme activity in patients with FD. Despite its clinical effect and manifestations, clear criteria for the clinical effectiveness and cost-effectiveness of ERT have not been well established. In this study, we investigated the pharmacodynamic actions and short-term effects of ERT in patients with FD through direct molecular profiling from blood samples of patients before and after ERT. Based on this comparison, we observed that immune/inflammation-related pathways and growth factor-related pathways such as innate/adaptive immune pathway, lymphocyte proliferation and leukocyte proliferation were actively regulated under ERT. We also found that TINAGL1, DAAM2, CDK5R1 and MYO5B known to be related with clinical symptoms of FD showed increased levels after ERT, leading to the amelioration of clinical manifestations. Especially the catabolic process-related genes, including USP15 and ERUN1, showed direct increasing after ERT in vivo in male patients. These results suggest that male patients with FD respond more actively to ERT than do female patients with FD. Pathway analysis revealed that oxidative phosphorylation pathway-related genes are downregulated under ERT. ERT has a role to protect the proteins from oxidative damage and such deactivation of oxidative phosphorylation is one of direct pharmacodynamic actions of ERT. These results extended our understanding of the pathophysiology of ERT. To our knowledge, this is the first study to observe the molecular basis for the mechanism of ERT in vivo through the comprehensive comparison of transcriptome study with next-generation sequencing data.
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Affiliation(s)
- Younhee Ko
- Department of Clinical Genetics, Department of Pediatrics, Yonsei University College of Medicine, Seoul, Korea
| | - CheolHo Lee
- Department of Clinical Genetics, Department of Pediatrics, Yonsei University College of Medicine, Seoul, Korea
| | | | - Geu-Ru Hong
- Cardiology Division, Severance Cardiovascular Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - Chong-Kun Cheon
- Department of Pediatrics, Pediatric Endocrinology and Metabolism, Pusan National University Children's Hospital, Yangsan, Korea
| | - Jin-Sung Lee
- Department of Clinical Genetics, Department of Pediatrics, Yonsei University College of Medicine, Seoul, Korea
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Stratégies thérapeutiques actuelles dans les maladies lysosomales. Presse Med 2014; 43:1174-84. [DOI: 10.1016/j.lpm.2013.12.022] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/13/2013] [Accepted: 12/19/2013] [Indexed: 01/30/2023] Open
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El-Abassi R, Singhal D, England JD. Fabry's disease. J Neurol Sci 2014; 344:5-19. [DOI: 10.1016/j.jns.2014.06.029] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2014] [Revised: 06/12/2014] [Accepted: 06/14/2014] [Indexed: 10/25/2022]
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Hollak CEM, Wijburg FA. Treatment of lysosomal storage disorders: successes and challenges. J Inherit Metab Dis 2014; 37:587-98. [PMID: 24820227 DOI: 10.1007/s10545-014-9718-3] [Citation(s) in RCA: 64] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/28/2014] [Revised: 04/04/2014] [Accepted: 04/15/2014] [Indexed: 01/29/2023]
Abstract
Treatment options for a number of lysosomal storage disorders have rapidly expanded and currently include enzyme replacement therapy, substrate reduction, chaperone treatment, hematopoietic stem cell transplantation, and gene-therapy. Combination treatments are also explored. Most therapies are not curative but change the phenotypic expression of the disease. The effectiveness of treatment varies considerably between the different diseases, but also between sub-groups of patients with a specific lysosomal storage disorder. The heterogeneity of the patient populations complicates the prediction of benefits of therapy, specifically in patients with milder disease manifestations. In addition, there is a lack of data on the natural history of diseases and disease phenotypes. Initial trial data show benefits on relevant short-term endpoints, but the real world situation may reveal different outcomes. Collaborative international studies are much needed to study the long-term clinical efficacy of treatments, and to detect new complications or associated conditions of the diseases. This review summarizes the available treatment modalities for lysosomal storage disorders and the challenges associated with long term clinical care for these patients.
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Affiliation(s)
- Carla E M Hollak
- Department of Internal Medicine, Division of Endocrinology and Metabolism, SPHINX, Amsterdam Lysosome Center, Academic Medical Center, Meibergdreef 9, 1105 AZ, Amsterdam, The Netherlands,
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Butler MS, Robertson AAB, Cooper MA. Natural product and natural product derived drugs in clinical trials. Nat Prod Rep 2014; 31:1612-61. [DOI: 10.1039/c4np00064a] [Citation(s) in RCA: 383] [Impact Index Per Article: 38.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
The 25 Natural Product (NP)-derived drugs launched since 2008 and the 100 NP-derived compounds and 33 Antibody Drug Conjugates (ADCs) in clinical trials or in registration at the end of 2013 are reviewed.
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Affiliation(s)
- Mark S. Butler
- Division of Chemistry and Structural Biology
- Institute for Molecular Bioscience
- The University of Queensland
- Brisbane, Australia
| | - Avril A. B. Robertson
- Division of Chemistry and Structural Biology
- Institute for Molecular Bioscience
- The University of Queensland
- Brisbane, Australia
| | - Matthew A. Cooper
- Division of Chemistry and Structural Biology
- Institute for Molecular Bioscience
- The University of Queensland
- Brisbane, Australia
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Andreotti G, Citro V, Correra A, Cubellis MV. A thermodynamic assay to test pharmacological chaperones for Fabry disease. Biochim Biophys Acta Gen Subj 2013; 1840:1214-24. [PMID: 24361605 PMCID: PMC3909460 DOI: 10.1016/j.bbagen.2013.12.018] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2013] [Revised: 12/04/2013] [Accepted: 12/11/2013] [Indexed: 12/29/2022]
Abstract
Background The majority of the disease-causing mutations affect protein stability, but not functional sites and are amenable, in principle, to be treated with pharmacological chaperones. These drugs enhance the thermodynamic stability of their targets. Fabry disease, a disorder caused by mutations in the gene encoding lysosomal alpha-galactosidase, represents an excellent model system to develop experimental protocols to test the efficiency of such drugs. Methods The stability of lysosomal alpha-galactosidase under different conditions was studied by urea-induced unfolding followed by limited proteolysis and Western blotting. Results We measured the concentration of urea needed to obtain half-maximal unfolding because this parameter represents an objective indicator of protein stability. Conclusions Urea-induced unfolding is a versatile technique that can be adapted to cell extracts containing tiny amounts of wild-type or mutant proteins. It allows testing of protein stability as a function of pH, in the presence or in the absence of drugs. Results are not influenced by the method used to express the protein in transfected cells. General significance Scarce and dispersed populations pose a problem for the clinical trial of drugs for rare diseases. This is particularly true for pharmacological chaperones that must be tested on each mutation associated with a given disease. Diverse in vitro tests are needed. We used a method based on chemically induced unfolding as a tool to assess whether a particular Fabry mutation is responsive to pharmacological chaperones, but, by no means is our protocol limited to this disease. Pharmacological chaperones stabilize the folded state of proteins. Only some Fabry mutations can be treated with pharmacological chaperones. Urea-induced unfolding represents a novel assay to test the efficiency of drugs. The test with urea can be applied to a tiny amount of mutants in raw extracts. Responsiveness of Fabry mutations to drugs can be tested with urea-induced unfolding.
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Affiliation(s)
| | - Valentina Citro
- Istituto di Genetica e Biofisica 'A. Buzzati Traverso,' CNR, Napoli, Italy.
| | - Antonella Correra
- Istituto di Genetica e Biofisica 'A. Buzzati Traverso,' CNR, Napoli, Italy; Dipartimento di Biologia, Università Federico II, Napoli, Italy.
| | - Maria Vittoria Cubellis
- Dipartimento di Biologia, Università Federico II, Napoli, Italy; Istituto di Biostrutture e Bioimmagini, CNR, Napoli, Italy.
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Schönemann W, Gallienne E, Ikeda-Obatake K, Asano N, Nakagawa S, Kato A, Adachi I, Górecki M, Frelek J, Martin OR. Glucosylceramide Mimics: Highly Potent GCase Inhibitors and Selective Pharmacological Chaperones for Mutations Associated with Types 1 and 2 Gaucher Disease. ChemMedChem 2013; 8:1805-17. [DOI: 10.1002/cmdc.201300327] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2013] [Indexed: 11/11/2022]
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Cheng WC, Weng CY, Yun WY, Chang SY, Lin YC, Tsai FJ, Huang FY, Chen YR. Rapid modifications of N-substitution in iminosugars: Development of new β-glucocerebrosidase inhibitors and pharmacological chaperones for Gaucher disease. Bioorg Med Chem 2013; 21:5021-8. [DOI: 10.1016/j.bmc.2013.06.054] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2013] [Revised: 06/21/2013] [Accepted: 06/22/2013] [Indexed: 12/21/2022]
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A rapid and sensitive method for measuring N-acetylglucosaminidase activity in cultured cells. PLoS One 2013; 8:e68060. [PMID: 23840811 PMCID: PMC3695942 DOI: 10.1371/journal.pone.0068060] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2013] [Accepted: 05/25/2013] [Indexed: 11/19/2022] Open
Abstract
A rapid and sensitive method to quantitatively assess N-acetylglucosaminidase (NAG) activity in cultured cells is highly desirable for both basic research and clinical studies. NAG activity is deficient in cells from patients with Mucopolysaccharidosis type IIIB (MPS IIIB) due to mutations in NAGLU, the gene that encodes NAG. Currently available techniques for measuring NAG activity in patient-derived cell lines include chromogenic and fluorogenic assays and provide a biochemical method for the diagnosis of MPS IIIB. However, standard protocols require large amounts of cells, cell disruption by sonication or freeze-thawing, and normalization to the cellular protein content, resulting in an error-prone procedure that is material- and time-consuming and that produces highly variable results. Here we report a new procedure for measuring NAG activity in cultured cells. This procedure is based on the use of the fluorogenic NAG substrate, 4-Methylumbelliferyl-2-acetamido-2-deoxy-alpha-D-glucopyranoside (MUG), in a one-step cell assay that does not require cell disruption or post-assay normalization and that employs a low number of cells in 96-well plate format. We show that the NAG one-step cell assay greatly discriminates between wild-type and MPS IIIB patient-derived fibroblasts, thus providing a rapid method for the detection of deficiencies in NAG activity. We also show that the assay is sensitive to changes in NAG activity due to increases in NAGLU expression achieved by either overexpressing the transcription factor EB (TFEB), a master regulator of lysosomal function, or by inducing TFEB activation chemically. Because of its small format, rapidity, sensitivity and reproducibility, the NAG one-step cell assay is suitable for multiple procedures, including the high-throughput screening of chemical libraries to identify modulators of NAG expression, folding and activity, and the investigation of candidate molecules and constructs for applications in enzyme replacement therapy, gene therapy, and combination therapies.
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Denny RA, Gavrin LK, Saiah E. Recent developments in targeting protein misfolding diseases. Bioorg Med Chem Lett 2013; 23:1935-44. [PMID: 23454013 DOI: 10.1016/j.bmcl.2013.01.089] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2012] [Revised: 01/18/2013] [Accepted: 01/21/2013] [Indexed: 10/27/2022]
Abstract
Protein misfolding is an emerging field that crosses multiple therapeutic areas and causes many serious diseases. As the biological pathways of protein misfolding become more clearly elucidated, small molecule approaches in this arena are gaining increased attention. This manuscript will survey current small molecules from the literature that are known to modulate misfolding, stabilization or proteostasis. Specifically, the following targets and approaches will be discussed: CFTR, glucocerebrosidase, modulation of toxic oligomers, serum amyloid P (SAP) sections and HSF1 activators.
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Affiliation(s)
- Rajiah Aldrin Denny
- BioTherapeutics Chemistry, Pfizer Worldwide Medicinal Chemistry, 200 CambridgePark Drive, Cambridge, MA 02140, USA
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Abstract
Fabry disease results from deficient activity of the enzyme α-galactosidase A and progressive lysosomal deposition of globotriaosylceramide (GL-3) in cells throughout the body. The main neurological presentations of Fabry disease patients are painful neuropathy, hypohidrosis, and stroke. Fabry neuropathy is characterized as a length-dependent peripheral neuropathy affecting mainly the small myelinated (Aδ) fibers and unmyelinated (C) fibers. Enzyme replacement therapy (ERT) has been shown to have some positive effects on the reduction of neuropathic pain, the improvement of detection threshold for thermal sensation, and sweat function. On the contrary, the effect of ERT on the central nervous system has not been established. Early initiation of ERT before irreversible organ failure is extremely important, and alternative therapeutic approaches are currently being explored. Heterozygotes suffer from peripheral neuropathy at a higher rate than previously shown, significant multisystemic disease, and severely decreased quality of life. As well as being carriers, heterozygotes also display symptoms of Fabry disease, and should be carefully monitored and given adequate therapy.
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Affiliation(s)
- Keiko Toyooka
- Department of Neurology, National Hospital Organization Toneyama National Hospital, Toyonaka, Osaka, Japan.
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Fargue S, Lewin J, Rumsby G, Danpure CJ. Four of the most common mutations in primary hyperoxaluria type 1 unmask the cryptic mitochondrial targeting sequence of alanine:glyoxylate aminotransferase encoded by the polymorphic minor allele. J Biol Chem 2012; 288:2475-84. [PMID: 23229545 DOI: 10.1074/jbc.m112.432617] [Citation(s) in RCA: 67] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
The gene encoding the liver-specific peroxisomal enzyme alanine:glyoxylate aminotransferase (AGT, EC. 2.6.1.44) exists as two common polymorphic variants termed the "major" and "minor" alleles. The P11L amino acid replacement encoded by the minor allele creates a hidden N-terminal mitochondrial targeting sequence, the unmasking of which occurs in the hereditary calcium oxalate kidney stone disease primary hyperoxaluria type 1 (PH1). This unmasking is due to the additional presence of a common disease-specific G170R mutation, which is encoded by about one third of PH1 alleles. The P11L and G170R replacements interact synergistically to reroute AGT to the mitochondria where it cannot fulfill its metabolic role (i.e. glyoxylate detoxification) effectively. In the present study, we have reinvestigated the consequences of the interaction between P11L and G170R in stably transformed CHO cells and have studied for the first time whether a similar synergism exists between P11L and three other mutations that segregate with the minor allele (i.e. I244T, F152I, and G41R). Our investigations show that the latter three mutants are all able to unmask the cryptic P11L-generated mitochondrial targeting sequence and, as a result, all are mistargeted to the mitochondria. However, whereas the G170R, I244T, and F152I mutants are able to form dimers and are catalytically active, the G41R mutant aggregates and is inactive. These studies open up the possibility that all PH1 mutations, which segregate with the minor allele, might also lead to the peroxisome-to-mitochondrion mistargeting of AGT, a suggestion that has important implications for the development of treatment strategies for PH1.
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Affiliation(s)
- Sonia Fargue
- Department of Cell and Developmental Biology, University College London, London WC1E 6BT, United Kingdom
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Germain DP, Giugliani R, Hughes DA, Mehta A, Nicholls K, Barisoni L, Jennette CJ, Bragat A, Castelli J, Sitaraman S, Lockhart DJ, Boudes PF. Safety and pharmacodynamic effects of a pharmacological chaperone on α-galactosidase A activity and globotriaosylceramide clearance in Fabry disease: report from two phase 2 clinical studies. Orphanet J Rare Dis 2012; 7:91. [PMID: 23176611 PMCID: PMC3527132 DOI: 10.1186/1750-1172-7-91] [Citation(s) in RCA: 88] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2012] [Accepted: 11/12/2012] [Indexed: 01/01/2023] Open
Abstract
Background Fabry disease (FD) is a genetic disorder resulting from deficiency of the lysosomal enzyme α-galactosidase A (α-Gal A), which leads to globotriaosylceramide (GL-3) accumulation in multiple tissues. We report on the safety and pharmacodynamics of migalastat hydrochloride, an investigational pharmacological chaperone given orally at 150 mg every-other-day. Methods Two open-label uncontrolled phase 2 studies of 12 and 24 weeks (NCT00283959 and NCT00283933) in 9 males with FD were combined. At multiple time points, α-Gal A activity and GL-3 levels were quantified in blood cells, kidney and skin. GL-3 levels were also evaluated through skin and renal histology. Results Compared to baseline, increased α-Gal A activity of at least 50% was demonstrated in blood, skin and kidney in 6 of 9 patients. Patients’ increased α-Gal A activities paralleled the α-Gal A increases observed in vitro in HEK-293 cells transfected with the corresponding mutant form of the enzyme. The same 6 patients who demonstrated increases of α-Gal A activity also had GL-3 reduction in skin, urine and/or kidney, and had α-Gal A mutations that responded in transfected cells incubated with the drug. The 3 patients who did not show a consistent response in vivo had α-Gal A mutations that did not respond to migalastat HCl in transfected cells. Migalastat HCl was well tolerated. Conclusions Migalastat HCl is a candidate pharmacological chaperone that provides a novel genotype-specific treatment for FD. It enhanced α-Gal A activity and resulted in GL-3 substrate decrease in patients with responsive GLA mutations. Phase 3 studies are ongoing. Trial registration Clinicaltrial.gov: NCT00283959 and NCT00283933
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Affiliation(s)
- Dominique P Germain
- Division of Medical Genetics, Hôpital Raymond Poincaré (AP-HP), University of Versailles - St Quentin en Yvelines (UVSQ), Garches, 92380, France.
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Pisani A, Visciano B, Roux GD, Sabbatini M, Porto C, Parenti G, Imbriaco M. Enzyme replacement therapy in patients with Fabry disease: state of the art and review of the literature. Mol Genet Metab 2012; 107:267-75. [PMID: 22963910 DOI: 10.1016/j.ymgme.2012.08.003] [Citation(s) in RCA: 64] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/02/2012] [Revised: 08/04/2012] [Accepted: 08/04/2012] [Indexed: 12/25/2022]
Abstract
Anderson-Fabry disease is an X-linked lysosomal storage disorder resulting from the deficiency of the hydrolytic enzyme alpha galactosidase A, with consequent accumulation of globotrioasoyl ceramide in cells and tissues of the body, resulting in a multi-system pathology including end organ failure. In the classical phenotype, cardiac failure, renal failure and stroke result in a reduced median life expectancy. The current causal treatment for Fabry disease is the enzyme replacement therapy (ERT): two different products, Replagal (agalsidase alfa) and Fabrazyme (agalsidase beta), have been commercially available in Europe for almost 10 years and they are both indicated for long-term treatment. In fact, clinical trials, observational studies and registry data have provided many evidences for safety and efficacy of ERT in improving symptoms of pain, gastrointestinal disturbances, hypohidrosis, left ventricular mass index, glomerular filtration rate and quality of life. Few data are available on comparison of the two treatments and on the clinical course of the disease. This article reviews the published evidence for clinical efficacy of the two available enzyme preparations.
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Affiliation(s)
- Antonio Pisani
- Department of Nephrology, University Federico II, Napoli, Italy
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Abstract
We have previously shown that CdSe/ZnS core/shell luminescent semiconductor nanocrystals or QDs (quantum dots) coated with PEG [poly(ethylene glycol)]-appended DHLA (dihydrolipoic acid) can bind AcWG(Pal)VKIKKP(9)GGH(6) (Palm1) through the histidine residues. The coating on the QD provides colloidal stability and this peptide complex uniquely allows the QDs to be taken up by cultured cells and readily exit the endosome into the soma. We now show that use of a polyampholyte coating [in which the neutral PEG is replaced by the negatively heterocharged CL4 (compact ligand)], results in the specific targeting of the palmitoylated peptide to neurons in mature rat hippocampal slice cultures. There was no noticeable uptake by astrocytes, oligodendrocytes or microglia (identified by immunocytochemistry), demonstrating neuronal specificity to the overall negatively charged CL4 coating. In addition, EM (electron microscopy) images confirm the endosomal egress ability of the Palm1 peptide by showing a much more disperse cytosolic distribution of the CL4 QDs conjugated to Palm1 compared with CL4 QDs alone. This suggests a novel and robust way of delivering neurotherapeutics to neurons.
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Xiao J, Westbroek W, Motabar O, Lea WA, Hu X, Velayati A, Zheng W, Southall N, Gustafson AM, Goldin E, Sidransky E, Liu K, Simeonov A, Tamargo RJ, Ribes A, Matalonga L, Ferrer M, Marugan JJ. Discovery of a novel noniminosugar acid α glucosidase chaperone series. J Med Chem 2012; 55:7546-59. [PMID: 22834902 PMCID: PMC3448374 DOI: 10.1021/jm3005543] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Pompe disease is an autosomal recessive lysosomal storage disorder (LSD) caused by deficiency of the lysosomal enzyme acid α-glucosidase (GAA). Many disease-causing mutated GAA retain enzymatic activity but are not translocated from endoplasmic reticulum (ER) to lysosomes. Enzyme replacement therapy (ERT) is the only treatment for Pompe disease but remains expensive, inconvenient, and does not reverse all disease manifestations. It was postulated that small molecules which aid in protein folding and translocation to lysosomes could provide an alternate to ERT. Previously, several iminosugars have been proposed as small-molecule chaperones for specific LSDs. Here we identified a novel series of noniminosugar chaperones for GAA. These moderate GAA inhibitors are shown to bind and thermostabilize GAA and increase GAA translocation to lysosomes in both wild-type and Pompe fibroblasts. AMDE and physical properties studies indicate that this series is a promising lead for further pharmacokinetic evaluation and testing in Pompe disease models.
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Affiliation(s)
- Jingbo Xiao
- NIH Chemical Genomics Center, NIH Center for Translational Therapeutics, National Center for Advancing Translational Sciences, National Institutes of Health, 9800 Medical Center Drive, Rockville, Maryland 20850
| | - Wendy Westbroek
- Medical Genetics Branch, National Human Genome Research Institute, National Institutes of Health, Building 35 Rm1A213, 35 Convent Drive, Bethesda, Maryland 20892
| | - Omid Motabar
- NIH Chemical Genomics Center, NIH Center for Translational Therapeutics, National Center for Advancing Translational Sciences, National Institutes of Health, 9800 Medical Center Drive, Rockville, Maryland 20850
| | - Wendy A. Lea
- NIH Chemical Genomics Center, NIH Center for Translational Therapeutics, National Center for Advancing Translational Sciences, National Institutes of Health, 9800 Medical Center Drive, Rockville, Maryland 20850
| | - Xin Hu
- NIH Chemical Genomics Center, NIH Center for Translational Therapeutics, National Center for Advancing Translational Sciences, National Institutes of Health, 9800 Medical Center Drive, Rockville, Maryland 20850
| | - Arash Velayati
- Medical Genetics Branch, National Human Genome Research Institute, National Institutes of Health, Building 35 Rm1A213, 35 Convent Drive, Bethesda, Maryland 20892
| | - Wei Zheng
- NIH Chemical Genomics Center, NIH Center for Translational Therapeutics, National Center for Advancing Translational Sciences, National Institutes of Health, 9800 Medical Center Drive, Rockville, Maryland 20850
| | - Noel Southall
- NIH Chemical Genomics Center, NIH Center for Translational Therapeutics, National Center for Advancing Translational Sciences, National Institutes of Health, 9800 Medical Center Drive, Rockville, Maryland 20850
| | - Ann Marie Gustafson
- Medical Genetics Branch, National Human Genome Research Institute, National Institutes of Health, Building 35 Rm1A213, 35 Convent Drive, Bethesda, Maryland 20892
| | - Ehud Goldin
- Medical Genetics Branch, National Human Genome Research Institute, National Institutes of Health, Building 35 Rm1A213, 35 Convent Drive, Bethesda, Maryland 20892
| | - Ellen Sidransky
- Medical Genetics Branch, National Human Genome Research Institute, National Institutes of Health, Building 35 Rm1A213, 35 Convent Drive, Bethesda, Maryland 20892
| | - Ke Liu
- NIH Chemical Genomics Center, NIH Center for Translational Therapeutics, National Center for Advancing Translational Sciences, National Institutes of Health, 9800 Medical Center Drive, Rockville, Maryland 20850
| | - Anton Simeonov
- NIH Chemical Genomics Center, NIH Center for Translational Therapeutics, National Center for Advancing Translational Sciences, National Institutes of Health, 9800 Medical Center Drive, Rockville, Maryland 20850
| | - Rafael J. Tamargo
- Medical Genetics Branch, National Human Genome Research Institute, National Institutes of Health, Building 35 Rm1A213, 35 Convent Drive, Bethesda, Maryland 20892
| | - Antonia Ribes
- Enfermedades Metabólicas Hereditarias, Institut de Bioquímica Clínica, Servicio de Bioquímica y Genética Molecular, Hospital Clínic y Provincial de Barcelona, Barcelona, Spain
| | - Leslie Matalonga
- Enfermedades Metabólicas Hereditarias, Institut de Bioquímica Clínica, Servicio de Bioquímica y Genética Molecular, Hospital Clínic y Provincial de Barcelona, Barcelona, Spain
| | - Marc Ferrer
- NIH Chemical Genomics Center, NIH Center for Translational Therapeutics, National Center for Advancing Translational Sciences, National Institutes of Health, 9800 Medical Center Drive, Rockville, Maryland 20850
| | - Juan J. Marugan
- NIH Chemical Genomics Center, NIH Center for Translational Therapeutics, National Center for Advancing Translational Sciences, National Institutes of Health, 9800 Medical Center Drive, Rockville, Maryland 20850
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Siekierska A, De Baets G, Reumers J, Gallardo R, Rudyak S, Broersen K, Couceiro J, Van Durme J, Schymkowitz J, Rousseau F. α-Galactosidase aggregation is a determinant of pharmacological chaperone efficacy on Fabry disease mutants. J Biol Chem 2012; 287:28386-97. [PMID: 22773828 DOI: 10.1074/jbc.m112.351056] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
Fabry disease is a lysosomal storage disorder caused by loss of α-galactosidase function. More than 500 Fabry disease mutants have been identified, the majority of which are structurally destabilized. A therapeutic strategy under development for lysosomal storage diseases consists of using pharmacological chaperones to stabilize the structure of the mutant protein, thereby promoting lysosomal delivery over retrograde degradation. The substrate analog 1-deoxygalactonojirimycin (DGJ) has been shown to restore activity of mutant α-galactosidase and is currently in clinical trial for treatment of Fabry disease. However, only ∼65% of tested mutants respond to treatment in cultured patient fibroblasts, and the structural underpinnings of DGJ response remain poorly explained. Using computational modeling and cell culture experiments, we show that the DGJ response is negatively affected by protein aggregation of α-galactosidase mutants, revealing a qualitative difference between misfolding-associated and aggregation-associated loss of function. A scoring function combining predicted thermodynamic stability and intrinsic aggregation propensity of mutants captures well their aggregation behavior under overexpression in HeLa cells. Interestingly, the same classifier performs well on DGJ response data of patient-derived cultured lymphoblasts, showing that protein aggregation is an important determinant of chemical chaperone efficiency under endogenous expression levels as well. Our observations reinforce the idea that treatment of aggregation-associated loss of function observed for the more severe α-galactosidase mutants could be enhanced by combining pharmacological chaperone treatment with the suppression of mutant aggregation, e.g. via proteostatic regulator compounds that increase cellular chaperone expression.
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Patnaik S, Zheng W, Choi JH, Motabar O, Southall N, Westbroek W, Lea WA, Velayati A, Goldin E, Sidransky E, Leister W, Marugan JJ. Discovery, structure-activity relationship, and biological evaluation of noninhibitory small molecule chaperones of glucocerebrosidase. J Med Chem 2012; 55:5734-48. [PMID: 22646221 PMCID: PMC3400126 DOI: 10.1021/jm300063b] [Citation(s) in RCA: 101] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
A major challenge in the field of Gaucher disease has been the development of new therapeutic strategies including molecular chaperones. All previously described chaperones of glucocerebrosidase are enzyme inhibitors, which complicates their clinical development because their chaperone activity must be balanced against the functional inhibition of the enzyme. Using a novel high throughput screening methodology, we identified a chemical series that does not inhibit the enzyme but can still facilitate its translocation to the lysosome as measured by immunostaining of glucocerebrosidase in patient fibroblasts. These compounds provide the basis for the development of a novel approach toward small molecule treatment for patients with Gaucher disease.
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Affiliation(s)
- Samarjit Patnaik
- NIH Chemical Genomic Center, National Center for Advancing Translation Sciences, National Institutes of Health, 9800 Medical Center Drive, Rockville, MD
| | - Wei Zheng
- NIH Chemical Genomic Center, National Center for Advancing Translation Sciences, National Institutes of Health, 9800 Medical Center Drive, Rockville, MD
| | - Jae H. Choi
- Medical Genetics Branch, National Human Genome Research Institute, National Institutes of Health, Bethesda, MD, 20892; USA
| | - Omid Motabar
- Medical Genetics Branch, National Human Genome Research Institute, National Institutes of Health, Bethesda, MD, 20892; USA
| | - Noel Southall
- NIH Chemical Genomic Center, National Center for Advancing Translation Sciences, National Institutes of Health, 9800 Medical Center Drive, Rockville, MD
| | - Wendy Westbroek
- Medical Genetics Branch, National Human Genome Research Institute, National Institutes of Health, Bethesda, MD, 20892; USA
| | - Wendy A. Lea
- NIH Chemical Genomic Center, National Center for Advancing Translation Sciences, National Institutes of Health, 9800 Medical Center Drive, Rockville, MD
| | - Arash Velayati
- Medical Genetics Branch, National Human Genome Research Institute, National Institutes of Health, Bethesda, MD, 20892; USA
| | - Ehud Goldin
- Medical Genetics Branch, National Human Genome Research Institute, National Institutes of Health, Bethesda, MD, 20892; USA
| | - Ellen Sidransky
- Medical Genetics Branch, National Human Genome Research Institute, National Institutes of Health, Bethesda, MD, 20892; USA
| | - William Leister
- NIH Chemical Genomic Center, National Center for Advancing Translation Sciences, National Institutes of Health, 9800 Medical Center Drive, Rockville, MD
| | - Juan J. Marugan
- NIH Chemical Genomic Center, National Center for Advancing Translation Sciences, National Institutes of Health, 9800 Medical Center Drive, Rockville, MD
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Guce AI, Clark NE, Rogich JJ, Garman SC. The molecular basis of pharmacological chaperoning in human α-galactosidase. ACTA ACUST UNITED AC 2012; 18:1521-6. [PMID: 22195554 DOI: 10.1016/j.chembiol.2011.10.012] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2011] [Revised: 10/12/2011] [Accepted: 10/13/2011] [Indexed: 10/14/2022]
Abstract
Fabry disease patients show a deficiency in the activity of the lysosomal enzyme α-galactosidase (α-GAL or α-Gal A). One proposed treatment for Fabry disease is pharmacological chaperone therapy, where a small molecule stabilizes the α-GAL protein, leading to increased enzymatic activity. Using enzyme kinetics, tryptophan fluorescence, circular dichroism, and proteolysis assays, we show that the pharmacological chaperones 1-deoxygalactonojirimycin (DGJ) and galactose stabilize the human α-GAL glycoprotein. Crystal structures of complexes of α-GAL and chaperones explain the molecular basis for the higher potency of DGJ over galactose. Using site-directed mutagenesis, we show the higher potency of DGJ results from an ionic interaction with D170. We propose that protonation of D170 in acidic conditions leads to weaker binding of DGJ. The results establish a biochemical basis for pharmacological chaperone therapy applicable to other protein misfolding diseases.
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Affiliation(s)
- Abigail I Guce
- Department of Chemistry, University of Massachusetts Amherst, Amherst, MA 01003, USA
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Santos-Sierra S, Kirchmair J, Perna AM, Reiss D, Kemter K, Röschinger W, Glossmann H, Gersting SW, Muntau AC, Wolber G, Lagler FB. Novel pharmacological chaperones that correct phenylketonuria in mice. Hum Mol Genet 2012; 21:1877-87. [PMID: 22246293 DOI: 10.1093/hmg/dds001] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2023] Open
Abstract
Phenylketonuria (PKU) is caused by inherited phenylalanine-hydroxylase (PAH) deficiency and, in many genotypes, it is associated with protein misfolding. The natural cofactor of PAH, tetrahydrobiopterin (BH(4)), can act as a pharmacological chaperone (PC) that rescues enzyme function. However, BH(4) shows limited efficacy in some PKU genotypes and its chemical synthesis is very costly. Taking an integrated drug discovery approach which has not been applied to this target before, we identified alternative PCs for the treatment of PKU. Shape-focused virtual screening of the National Cancer Institute's chemical library identified 84 candidate molecules with potential to bind to the active site of PAH. An in vitro evaluation of these yielded six compounds that restored the enzymatic activity of the unstable PAHV106A variant and increased its stability in cell-based assays against proteolytic degradation. During a 3-day treatment study, two compounds (benzylhydantoin and 6-amino-5-(benzylamino)-uracil) substantially improved the in vivo Phe oxidation and blood Phe concentrations of PKU mice (Pah(enu1)). Notably, benzylhydantoin was twice as effective as tetrahydrobiopterin. In conclusion, we identified two PCs with high in vivo efficacy that may be further developed into a more effective drug treatment of PKU.
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Affiliation(s)
- Sandra Santos-Sierra
- Sections of Biochemical and Clinical Pharmacology, Department of Medical Genetics, Molecular and Clinical Pharmacology, Innsbruck Medical University, 6020 Innsbruck, Austria
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Decroocq C, Rodríguez-Lucena D, Ikeda K, Asano N, Compain P. Cyclodextrin-Based Iminosugar Click Clusters: The First Examples of Multivalent Pharmacological Chaperones for the Treatment of Lysosomal Storage Disorders. Chembiochem 2012; 13:661-4. [DOI: 10.1002/cbic.201200005] [Citation(s) in RCA: 55] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2012] [Indexed: 12/31/2022]
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Abstract
PURPOSE OF REVIEW This review discusses the literature on Fabry disease mainly in the domain of neurology with special attention to recent advancement. RECENT FINDINGS Fabry neuropathy is known as a length-dependent peripheral neuropathy affecting mainly the small myelinated (Aδ) fibers and unmyelinated (C) fibers. Recently, concerning heterozygotes, it seems that they suffer from peripheral neuropathy at a higher rate than previously shown, significant multisystemic disease, and severely decreased quality of life. The existence of an atypical variant of Fabry disease with late-onset cerebrovascular disease (cerebrovascular variant) is now suggested, like the cardiac and renal variants of Fabry disease. Although enzyme replacement therapy (ERT) has been shown to have some positive effects on reduction of neuropathic pain, the improvement of detection threshold for thermal sensation and sweat function, the effect of ERT on the central nervous system has not been established. Gene replacement therapy, chemical chaperone therapy, and ERT using modified α-N-acetylgalactosaminidase are in progress, and induced pluripotent stem cells were generated from mouse models of Fabry disease. SUMMARY Heterozygotes should be carefully monitored for precise estimation and adequate therapy. Early initiation of ERT before irreversible organ failure is most important, and alternative therapeutic approaches are currently being explored.
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