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İnci A, Ezgü FS, Tümer L. Advances in Immune Tolerance Induction in Enzyme Replacement Therapy. Paediatr Drugs 2024; 26:287-308. [PMID: 38664313 PMCID: PMC11074017 DOI: 10.1007/s40272-024-00627-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 03/11/2024] [Indexed: 05/07/2024]
Abstract
Inborn errors of metabolism (IEMs) are a group of genetic diseases that occur due to the either deficiency of an enzyme involved in a metabolic/biochemical pathway or other disturbances in the metabolic pathway including transport protein or activator protein deficiencies, cofactor deficiencies, organelle biogenesis, maturation or trafficking problems. These disorders are collectively significant due to their substantial impact on both the well-being and survival of affected individuals. In the quest for effective treatments, enzyme replacement therapy (ERT) has emerged as a viable strategy for patients with many of the lysosomal storage disorders (LSD) and enzyme substitution therapy in the rare form of the other inborn errors of metabolism including phenylketonuria and hypophosphatasia. However, a major challenge associated with enzyme infusion in patients with these disorders, mainly LSD, is the development of high antibody titres. Strategies focusing on immunomodulation have shown promise in inducing immune tolerance to ERT, leading to improved overall survival rates. The implementation of immunomodulation concurrent with ERT administration has also resulted in a decreased occurrence of IgG antibody development compared with cases treated solely with ERT. By incorporating the knowledge gained from current approaches and analysing the outcomes of immune tolerance induction (ITI) modalities from clinical and preclinical trials have demonstrated significant improvement in the efficacy of ERT. In this comprehensive review, the progress in ITI modalities is assessed, drawing insights from both clinical and preclinical trials. The focus is on evaluating the advancements in ITI within the context of IEM, specifically addressing LSDs managed through ERT.
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Affiliation(s)
- Aslı İnci
- Department of Paediatric Metabolism and Nutrition, Gazi University School of Medicine, Emniyet Street, Yenimahalle, Ankara, Turkey.
| | - Fatih Süheyl Ezgü
- Department of Paediatric Metabolism and Nutrition, Gazi University School of Medicine, Emniyet Street, Yenimahalle, Ankara, Turkey
- Department of Paediatric Genetic, Gazi University School of Medicine, Ankara, Turkey
| | - Leyla Tümer
- Department of Paediatric Metabolism and Nutrition, Gazi University School of Medicine, Emniyet Street, Yenimahalle, Ankara, Turkey
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2
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Awan ZA, Khan HA, Jamal A, Shams S, Zheng G, Wadood A, Shahab M, Khan MI, Kalantan AA. In silico exploration of the potential inhibitory activities of in-house and ZINC database lead compounds against alpha-glucosidase using structure-based virtual screening and molecular dynamics simulation approach. J Biomol Struct Dyn 2024:1-11. [PMID: 38294714 DOI: 10.1080/07391102.2023.2298391] [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: 05/16/2023] [Accepted: 09/14/2023] [Indexed: 02/01/2024]
Abstract
Inhibitors of α-glucosidase have been used to treat type-2 diabetes (T2DM) by preventing the breakdown of carbohydrates into glucose and prevent enhancing glucose conversion. Structure-based virtual screening (SBVS) was used to generate novel chemical scaffold-ligand α-glucosidase inhibitors. The databases were screened against the receptor α-glucosidase using SBVS and molecular dynamics simulation (MDS) techniques in this study. Based on molecular docking studies, three and two compounds of α-glucosidase inhibitors were chosen from a commercial database (ZINC) and an In-house database for this study respectively. The mode of binding interactions of the selected compounds later predicted their α-glucosidase inhibitory potential. Finally, one out of three lead compound from ZINC and one out of two lead compound from In-house database were shortlisted based on interactions. Furthermore, MDS and post-MDS strategies were used to refine and validate the shortlisted leads along with the reference acarbose/α-glucosidase. The Hits' ability to inhibit α-glucosidase was predicted by SBVS, indicating that these compounds have good inhibitory activities. The lead inhibitor's structure may serve as templates for the design of novel inhibitors, and in vitro testing to confirm their anti-diabetic potential is necessary. These insights can help rationally design new effective anti-diabetic drugs.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Zuhier A Awan
- Department of Clinical Biochemistry, Faculty of Medicine, King Abdulaziz University, Jeddah, Saudi Arabia
- Mohamed Saeed Tamer Chair for Pharmaceutical Industries, King Abdulaziz University, Jeddah, Saudi Arabia
- Center of Excellence for Drug Research and Pharmaceutical Industries, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Haider Ali Khan
- Department of Biochemistry, Abdul Wali Khan University Mardan, Mardan, Khyber Pakhtunkhwa, Pakistan
| | - Alam Jamal
- Department of Biochemistry, Faculty of Science, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Sulaiman Shams
- Department of Biochemistry, Abdul Wali Khan University Mardan, Mardan, Khyber Pakhtunkhwa, Pakistan
| | - Guojun Zheng
- State Key Laboratories of Chemical Resources Engineering, Beijing University of Chemical Technology, Beijing, China
| | - Abdul Wadood
- Department of Biochemistry, Abdul Wali Khan University Mardan, Mardan, Khyber Pakhtunkhwa, Pakistan
| | - Muhammad Shahab
- State Key Laboratories of Chemical Resources Engineering, Beijing University of Chemical Technology, Beijing, China
| | - Mohammad Imran Khan
- Department of Biochemistry, Faculty of Science, King Abdulaziz University, Jeddah, Saudi Arabia
- Centre of Artificial Intelligence for Precision Medicines, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Abdulaziz A Kalantan
- Department of Biochemistry, Faculty of Science, Cancer and Mutagenesis Unit, King Fahd Medical Research Center, King Abdulaziz University, Jeddah, Saudi Arabia
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3
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Askarzadeh M, Azizian H, Adib M, Mohammadi-Khanaposhtani M, Mojtabavi S, Faramarzi MA, Sajjadi-Jazi SM, Larijani B, Hamedifar H, Mahdavi M. Design, synthesis, in vitro α-glucosidase inhibition, docking, and molecular dynamics of new phthalimide-benzenesulfonamide hybrids for targeting type 2 diabetes. Sci Rep 2022; 12:10569. [PMID: 35732907 PMCID: PMC9217978 DOI: 10.1038/s41598-022-14896-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2021] [Accepted: 05/04/2022] [Indexed: 11/30/2022] Open
Abstract
In the present work, a new series of 14 novel phthalimide-benzenesulfonamide derivatives 4a-n were synthesized, and their inhibitory activity against yeast α-glucosidase was screened. The obtained results indicated that most of the newly synthesized compounds showed prominent inhibitory activity against α-glucosidase. Among them, 4-phenylpiperazin derivative 4m exhibited the strongest inhibition with the IC50 value of 52.2 ± 0.1 µM. Enzyme kinetic study of compound 4m proved that its inhibition mode was competitive and Ki value of this compound was calculated to be 52.7 µM. In silico induced fit docking and molecular dynamics studies were performed to further investigate the interaction, orientation, and conformation of the target compounds over the active site of α-glucosidase. Obtained date of these studies demonstrated that our new compounds interacted as well with the α-glucosidase active site with the acceptable binding energies. Furthermore, in silico druglikeness/ADME/Toxicity studies of compound 4m were performed and predicted that this compound is druglikeness and has good ADME and toxicity profiles.
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Affiliation(s)
- Mohammad Askarzadeh
- School of Chemistry, College of Science, University of Tehran, PO Box 14155-6455, Tehran, Iran
| | - Homa Azizian
- Department of Medicinal Chemistry, School of Pharmacy, Iran University of Medical Sciences, Tehran, Iran
| | - Mehdi Adib
- School of Chemistry, College of Science, University of Tehran, PO Box 14155-6455, Tehran, Iran.
| | - Maryam Mohammadi-Khanaposhtani
- Cellular and Molecular Biology Research Center, Health Research Institute, Babol University of Medical Sciences, Babol, Iran
| | - Somayeh Mojtabavi
- Department of Pharmaceutical Biotechnology, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Mohammad Ali Faramarzi
- Department of Pharmaceutical Biotechnology, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Sayed Mahmoud Sajjadi-Jazi
- Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
- Cell Therapy and Regenerative Medicine Research Center, Endocrinology and Metabolism Molecular-Cellular Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Bagher Larijani
- Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Haleh Hamedifar
- CinnaGen Medical Biotechnology Research Center, Alborz University of Medical Sciences, Karaj, Iran
| | - Mohammad Mahdavi
- Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran.
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4
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Hematopoietic stem cell gene therapy ameliorates CNS involvement in murine model of GM1-gangliosidosis. Mol Ther Methods Clin Dev 2022; 25:448-460. [PMID: 35615711 PMCID: PMC9118356 DOI: 10.1016/j.omtm.2022.04.012] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Accepted: 04/25/2022] [Indexed: 11/23/2022]
Abstract
GM1-gangliosidosis is a progressive neurodegenerative glycosphingolipidosis resulting from a GLB1 gene mutation causing a deficiency of the lysosomal enzyme β-galactosidase, which leads to the abnormal accumulation of GM1 ganglioside in the central nervous system. In the most severe early infantile phenotype, excessive ganglioside accumulation results in a rapid decline in neurological and psychomotor functions, and death occurs within 2 years of age. Currently, there is no effective therapy for GM1-gangliosidosis. In this study, we evaluated the therapeutic efficacy of ex vivo gene therapy targeting hematopoietic stem cells using a lentiviral vector to increase enzyme activity, reduce substrate accumulation, and improve astrocytosis and motor function. Transplanting GLB1-transduced hematopoietic stem cells in mice increased β-galactosidase enzyme activity in the central nervous system and visceral organs. Specifically, this gene therapy significantly decreased GM1 ganglioside levels in the brain, especially in the cerebrum. More important, this gene therapy rectified astrocytosis in the cerebrum and improved motor function deficits. Furthermore, the elevation of serum β-galactosidase activity in secondary-transplanted mice suggested the ability of transduced hematopoietic stem cells to repopulate long term. These data indicate that ex vivo gene therapy with lentiviral vectors is a promising approach for the treatment of brain deficits in GM1 gangliosidosis.
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Hamura R, Shirai Y, Shimada Y, Saito N, Taniai T, Horiuchi T, Takada N, Kanegae Y, Ikegami T, Ohashi T, Yanaga K. Suppression of lysosomal acid alpha-glucosidase impacts the modulation of transcription factor EB translocation in pancreatic cancer. Cancer Sci 2021; 112:2335-2348. [PMID: 33931930 PMCID: PMC8177769 DOI: 10.1111/cas.14921] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2020] [Revised: 04/06/2021] [Accepted: 04/09/2021] [Indexed: 12/14/2022] Open
Abstract
Lysosomal degradation plays a crucial role in the metabolism of biological macromolecules supplied by autophagy. The regulation of the autophagy‐lysosome system, which contributes to intracellular homeostasis, chemoresistance, and tumor progression, has recently been revealed as a promising therapeutic approach for pancreatic cancer (PC). However, the details of lysosomal catabolic function in PC cells have not been fully elucidated. In this study, we show evidence that suppression of acid alpha‐glucosidase (GAA), one of the lysosomal enzymes, improves chemosensitivity and exerts apoptotic effects on PC cells through the disturbance of expression of the transcription factor EB. The levels of lysosomal enzyme were elevated by gemcitabine in PC cells. In particular, the levels of GAA were responsive to gemcitabine in a dose–dependent and time–dependent manner. Small interfering RNA against the GAA gene (siGAA) suppressed cell proliferation and promoted apoptosis in gemcitabine‐treated PC cells. In untreated PC cells, we observed accumulation of depolarized mitochondria. Gene therapy using adenoviral vectors carrying shRNA against the GAA gene increased the number of apoptotic cells and decreased the tumor growth in xenograft model mice. These results indicate that GAA is one of the key targets to improve the efficacy of gemcitabine and develop novel therapies for PC.
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Affiliation(s)
- Ryoga Hamura
- Department of Surgery, Jikei University School of Medicine, Tokyo, Japan.,Division of Gene Therapy, Research Center for Medical Science, Jikei University School of Medicine, Tokyo, Japan
| | - Yoshihiro Shirai
- Department of Surgery, Jikei University School of Medicine, Tokyo, Japan.,Division of Gene Therapy, Research Center for Medical Science, Jikei University School of Medicine, Tokyo, Japan
| | - Yohta Shimada
- Division of Gene Therapy, Research Center for Medical Science, Jikei University School of Medicine, Tokyo, Japan
| | - Nobuhiro Saito
- Department of Surgery, Jikei University School of Medicine, Tokyo, Japan.,Division of Gene Therapy, Research Center for Medical Science, Jikei University School of Medicine, Tokyo, Japan
| | - Tomohiko Taniai
- Department of Surgery, Jikei University School of Medicine, Tokyo, Japan.,Division of Gene Therapy, Research Center for Medical Science, Jikei University School of Medicine, Tokyo, Japan
| | - Takashi Horiuchi
- Department of Surgery, Jikei University School of Medicine, Tokyo, Japan.,Division of Gene Therapy, Research Center for Medical Science, Jikei University School of Medicine, Tokyo, Japan
| | - Naoki Takada
- Department of Surgery, Jikei University School of Medicine, Tokyo, Japan.,Division of Gene Therapy, Research Center for Medical Science, Jikei University School of Medicine, Tokyo, Japan
| | - Yumi Kanegae
- Core Research Facilities of Basic Science, Research Center for Medical Science, Jikei University School of Medicine, Tokyo, Japan
| | - Toru Ikegami
- Department of Surgery, Jikei University School of Medicine, Tokyo, Japan
| | - Toya Ohashi
- Division of Gene Therapy, Research Center for Medical Science, Jikei University School of Medicine, Tokyo, Japan
| | - Katsuhiko Yanaga
- Department of Surgery, Jikei University School of Medicine, Tokyo, Japan
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6
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Kaur R, Kumar R, Dogra N, Kumar A, Yadav AK, Kumar M. Synthesis and studies of thiazolidinedione-isatin hybrids as α-glucosidase inhibitors for management of diabetes. Future Med Chem 2021; 13:457-485. [PMID: 33506699 DOI: 10.4155/fmc-2020-0022] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
Abstract
Aim: Keeping in view the side effects associated with clinically used α-glucosidase inhibitors, novel thiazolidinedione-isatin hybrids were synthesized and evaluated by in vitro, in vivo and in silico procedures. Materials & methods: Biological evaluation, cytotoxicity assessment, molecular docking, binding free energy calculations and molecular dynamics studies were performed for hybrids. Results: The most potent inhibitor A-10 (IC50 = 24.73 ± 0.93 μM) was competitive in manner and observed as non-cytotoxic. A-10 possessed higher efficacy than the standard drug (acarbose) during in vivo biological testing. Conclusion: The enzyme inhibitory potential and safety profile of synthetic molecules was recognized after in vitro, in vivo, in silico and cytotoxicity studies. Further structural optimization of A-10 can offer potential hit molecules suitable for future investigations.
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Affiliation(s)
- Ramandeep Kaur
- University Institute of Pharmaceutical Sciences, Panjab University, Chandigarh 160014, India
| | - Rajnish Kumar
- Department of Pharmaceutical Engineering & Technology, Indian Institute of Technology, Varanasi 221005, India
| | - Nilambra Dogra
- Centre for Systems Biology & Bioinformatics, Panjab University, Chandigarh 160014, India
| | - Ashok Kumar
- Centre for Systems Biology & Bioinformatics, Panjab University, Chandigarh 160014, India
| | - Ashok Kumar Yadav
- University Institute of Pharmaceutical Sciences, Panjab University, Chandigarh 160014, India
| | - Manoj Kumar
- University Institute of Pharmaceutical Sciences, Panjab University, Chandigarh 160014, India
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7
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Sherafati M, Mirzazadeh R, Barzegari E, Mohammadi-Khanaposhtani M, Azizian H, Sadegh Asgari M, Hosseini S, Zabihi E, Mojtabavi S, Ali Faramarzi M, Mahdavi M, Larijani B, Rastegar H, Hamedifar H, Hamed Hajimiri M. Quinazolinone-dihydropyrano[3,2-b]pyran hybrids as new α-glucosidase inhibitors: Design, synthesis, enzymatic inhibition, docking study and prediction of pharmacokinetic. Bioorg Chem 2021; 109:104703. [PMID: 33609917 DOI: 10.1016/j.bioorg.2021.104703] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Revised: 12/29/2020] [Accepted: 01/28/2021] [Indexed: 02/08/2023]
Abstract
A series of new quinazolinone-dihydropyrano[3,2-b]pyran derivatives 10A-L were synthesized by simple chemical reactions and were investigated for inhibitory activities against α-glucosidase and α-amylase. New synthesized compounds showed high α-glucosidase inhibition effects in comparison to the standard drug acarbose and were inactive against α-amylase. Among them, the most potent compound was compound 10L (IC50 value = 40.1 ± 0.6 µM) with inhibitory activity around 18.75-fold more than acarboase (IC50 value = 750.0 ± 12.5 µM). This compound was a competitive inhibitor into α-glucosidase. Our obtained experimental results were confirmed by docking studies. Furthermore, the cytotoxicity of the most potent compounds 10L, 10G, and 10N against normal fibroblast cells and in silico druglikeness, ADME, and toxicity prediction of these compounds were also evaluated.
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Affiliation(s)
- Maedeh Sherafati
- Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | | | - Ebrahim Barzegari
- Medical Biology Research Center, Health Technology Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Maryam Mohammadi-Khanaposhtani
- Cellular and Molecular Biology Research Center, Health Research Institute, Babol University of Medical Sciences, Babol, Iran
| | - Homa Azizian
- Department of Medicinal Chemistry, School of Pharmacy, Iran University of Medical Sciences, Tehran, Iran
| | | | - Samanesadat Hosseini
- Department of Pharmaceutical Chemistry, School of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Ebrahim Zabihi
- Cellular and Molecular Biology Research Center, Health Research Institute, Babol University of Medical Sciences, Babol, Iran
| | - Somayeh Mojtabavi
- Department of Pharmaceutical Biotechnology, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Mohammad Ali Faramarzi
- Department of Pharmaceutical Biotechnology, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Mohammad Mahdavi
- Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran.
| | - Bagher Larijani
- Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Hossein Rastegar
- Cosmetic Products Research Center, Iranian Food and Drug Administration, MOHE, Tehran, Iran
| | - Haleh Hamedifar
- CinnaGen Medical Biotechnology Research Center, Alborz University of Medical Sciences, Karaj, Iran
| | - Mir Hamed Hajimiri
- Nano Alvand Company, Avicenna Tech Park, Tehran University of Medical Sciences, Tehran, Iran.
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New acridine-9-carboxamide linked to 1,2,3-triazole-N-phenylacetamide derivatives as potent α-glucosidase inhibitors: design, synthesis, in vitro, and in silico biological evaluations. Med Chem Res 2020. [DOI: 10.1007/s00044-020-02603-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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9
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Hao L, Ma Y, Zhao L, Zhang Y, Zhang X, Ma Y, Dodd RH, Sun H, Yu P. Synthesis of tetracyclic oxindoles and evaluation of their α-glucosidase inhibitory and glucose consumption-promoting activity. Bioorg Med Chem Lett 2020; 30:127264. [PMID: 32527562 DOI: 10.1016/j.bmcl.2020.127264] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2020] [Revised: 04/22/2020] [Accepted: 05/12/2020] [Indexed: 01/05/2023]
Abstract
A series of tetracyclic oxindole derivatives was synthesized by asymmetric 1, 3-dipole reaction in 2-4 steps in 57-86% overall yields. These compounds were evaluated for α-glucosidase inhibitory and glucose consumption-promoting activity in vitro. Compound 4l competitively and reversibly inhibited α-glucosidase (IC50 = 3.64 μM) with activity 14-fold higher than that of acarbose. Docking analysis substantiated these findings. In addition, compound 4l exhibited significant glucose consumption promoting activity at 1 μM.
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Affiliation(s)
- Lei Hao
- China International Science and Technology Cooperation Base of Food Nutrition/Safety and Medicinal Chemistry, College of Biotechnology, Tianjin University of Science & Technology, Tianjin 300457, China
| | - Yujiao Ma
- China International Science and Technology Cooperation Base of Food Nutrition/Safety and Medicinal Chemistry, College of Biotechnology, Tianjin University of Science & Technology, Tianjin 300457, China
| | - Lianbo Zhao
- China International Science and Technology Cooperation Base of Food Nutrition/Safety and Medicinal Chemistry, College of Biotechnology, Tianjin University of Science & Technology, Tianjin 300457, China
| | - Yinan Zhang
- China International Science and Technology Cooperation Base of Food Nutrition/Safety and Medicinal Chemistry, College of Biotechnology, Tianjin University of Science & Technology, Tianjin 300457, China
| | - Xinying Zhang
- China International Science and Technology Cooperation Base of Food Nutrition/Safety and Medicinal Chemistry, College of Biotechnology, Tianjin University of Science & Technology, Tianjin 300457, China
| | - Ying Ma
- School of Pharmacy, Tianjin Medical University, Tianjin 300070, China
| | - Robert H Dodd
- China International Science and Technology Cooperation Base of Food Nutrition/Safety and Medicinal Chemistry, College of Biotechnology, Tianjin University of Science & Technology, Tianjin 300457, China; Centre de recherche de Gif-sur-Yvette, Institut de Chimie des Substances Naturelles, UPR 2301, CNRS, Avenue de la Terrasse, 91198 Gif-sur-Yvette, France
| | - Hua Sun
- China International Science and Technology Cooperation Base of Food Nutrition/Safety and Medicinal Chemistry, College of Biotechnology, Tianjin University of Science & Technology, Tianjin 300457, China.
| | - Peng Yu
- China International Science and Technology Cooperation Base of Food Nutrition/Safety and Medicinal Chemistry, College of Biotechnology, Tianjin University of Science & Technology, Tianjin 300457, China.
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10
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Proteostasis regulators modulate proteasomal activity and gene expression to attenuate multiple phenotypes in Fabry disease. Biochem J 2020; 477:359-380. [PMID: 31899485 PMCID: PMC6993862 DOI: 10.1042/bcj20190513] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2019] [Revised: 12/17/2019] [Accepted: 01/02/2020] [Indexed: 12/22/2022]
Abstract
The lysosomal storage disorder Fabry disease is characterized by a deficiency of the lysosomal enzyme α-Galactosidase A. The observation that missense variants in the encoding GLA gene often lead to structural destabilization, endoplasmic reticulum retention and proteasomal degradation of the misfolded, but otherwise catalytically functional enzyme has resulted in the exploration of alternative therapeutic approaches. In this context, we have investigated proteostasis regulators (PRs) for their potential to increase cellular enzyme activity, and to reduce the disease-specific accumulation of the biomarker globotriaosylsphingosine in patient-derived cell culture. The PRs also acted synergistically with the clinically approved 1-deoxygalactonojirimycine, demonstrating the potential of combination treatment in a therapeutic application. Extensive characterization of the effective PRs revealed inhibition of the proteasome and elevation of GLA gene expression as paramount effects. Further analysis of transcriptional patterns of the PRs exposed a variety of genes involved in proteostasis as potential modulators. We propose that addressing proteostasis is an effective approach to discover new therapeutic targets for diseases involving folding and trafficking-deficient protein mutants.
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11
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New phthalimide-benzamide-1,2,3-triazole hybrids; design, synthesis, α-glucosidase inhibition assay, and docking study. Med Chem Res 2020. [DOI: 10.1007/s00044-020-02522-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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12
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Saeedi M, Mohammadi-Khanaposhtani M, Asgari MS, Eghbalnejad N, Imanparast S, Faramarzi MA, Larijani B, Mahdavi M, Akbarzadeh T. Design, synthesis, in vitro, and in silico studies of novel diarylimidazole-1,2,3-triazole hybrids as potent α-glucosidase inhibitors. Bioorg Med Chem 2019; 27:115148. [DOI: 10.1016/j.bmc.2019.115148] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2019] [Revised: 09/08/2019] [Accepted: 10/01/2019] [Indexed: 02/07/2023]
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13
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Desai AK, Li C, Rosenberg AS, Kishnani PS. Immunological challenges and approaches to immunomodulation in Pompe disease: a literature review. ANNALS OF TRANSLATIONAL MEDICINE 2019; 7:285. [PMID: 31392197 PMCID: PMC6642943 DOI: 10.21037/atm.2019.05.27] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2019] [Accepted: 05/08/2019] [Indexed: 01/30/2023]
Abstract
Pompe disease is an autosomal recessive disorder caused by a deficiency of acid alpha-glucosidase resulting in intralysosomal glycogen accumulation in multiple tissue types, especially cardiac, skeletal, and smooth muscle. Enzyme replacement therapy (ERT) with alglucosidase alfa has led to improved clinical outcomes and prolonged survival in patients with Pompe disease. While ERT has changed the natural course of Pompe disease, with many long-term survivors, several factors affect the response to ERT. Previous studies in Pompe disease have shown that IgG antibodies to ERT can lead to a decline in muscle strength, pulmonary function, and overall and ventilator-free survival. Additionally, antibody responses to ERT can also cause hypersensitivity reactions. Various strategies to prevent or eliminate the IgG antibody response have been attempted in patients with Pompe disease. A detailed literature search was performed to compile data regarding the consequences of IgG antibodies, clinical approaches to prevent or eliminate IgG antibodies in patients with Pompe disease, and to expand our understanding of new modalities being developed in non-clinical settings. All qualifying articles describing the impact of IgG antibodies on the response to ERT, immunomodulation in patients with Pompe disease, and non-clinical settings identified via a PubMed database search were included in the review. Here, we provide a comprehensive review of combination- and single-agent therapies that have been investigated in the context of immune tolerance induction to ERT in Pompe disease to date. Immunomodulation strategies that successfully induce immune tolerance to ERT have improved overall survival, especially reflected in the decreased number of ventilator-dependent or deceased cross-reactive immunologic material (CRIM)-negative infantile Pompe disease (IPD) patients due to development of IgG antibodies when treated with ERT alone. Immunomodulation in CRIM-positive patients at the time they receive ERT also results in a decrease in the development of IgG antibodies compared to cases treated with ERT alone. Lessons learned from current approaches, alongside results from trials of novel immunomodulation strategies, may provide important insights into the development of next-generation therapies.
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Affiliation(s)
- Ankit K. Desai
- Division of Medical Genetics, Department of Pediatrics, Duke University Health System, Durham, NC, USA
| | - Cindy Li
- Division of Medical Genetics, Department of Pediatrics, Duke University Health System, Durham, NC, USA
| | - Amy S. Rosenberg
- Division of Biologics Review and Research 3, Office of Biotechnology Products, Center for Drug Evaluation and Research, US FDA, Bethesda, MD, USA
| | - Priya S. Kishnani
- Division of Medical Genetics, Department of Pediatrics, Duke University Health System, Durham, NC, USA
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Sugano H, Shirai Y, Horiuchi T, Saito N, Shimada Y, Eto K, Uwagawa T, Ohashi T, Yanaga K. Nafamostat Mesilate Enhances the Radiosensitivity and Reduces the Radiation-Induced Invasive Ability of Colorectal Cancer Cells. Cancers (Basel) 2018; 10:E386. [PMID: 30336548 PMCID: PMC6210678 DOI: 10.3390/cancers10100386] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2018] [Revised: 10/12/2018] [Accepted: 10/15/2018] [Indexed: 12/18/2022] Open
Abstract
Neoadjuvant chemoradiotherapy followed by radical surgery is the standard treatment for patients with locally advanced low rectal cancer. However, several studies have reported that ionizing radiation (IR) activates nuclear factor kappa B (NF-κB) that causes radioresistance and induces matrix metalloproteinase (MMP)-2/-9, which promote tumor migration and invasion. Nafamostat mesilate (FUT175), a synthetic serine protease inhibitor, enhances the chemosensitivity to cytotoxic agents in digestive system cancer cells by inhibiting NF-κB activation. Therefore, we evaluated the combined effect of IR and FUT175 on cell proliferation, migration and invasion of colorectal cancer (CRC) cells. IR-induced upregulation of intranuclear NF-κB, FUT175 counteracted this effect. Moreover, the combination treatment suppressed cell viability and induced apoptosis. Similar effects were also observed in xenograft tumors. In addition, FUT175 prevented the migration and invasion of cancer cells caused by IR by downregulating the enzymatic activity of MMP-2/-9. In conclusion, FUT175 enhances the anti-tumor effect of radiotherapy through downregulation of NF-κB and reduces IR-induced tumor invasiveness by directly inhibiting MMP-2/-9 in CRC cells. Therefore, the use of FUT175 during radiotherapy might improve the efficacy of radiotherapy in patients with CRC.
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Affiliation(s)
- Hiroshi Sugano
- Department of Surgery, The Jikei University School of Medicine, 3-25-8, Nishi-Shinbashi, Minato-ku, Tokyo 105-8461, Japan.
- Division of Gene Therapy, Research Center for Medical Science, The Jikei University School of Medicine, 3-25-8, Nishi-Shinbashi, Minato-ku, Tokyo 105-8461, Japan.
| | - Yoshihiro Shirai
- Department of Surgery, The Jikei University School of Medicine, 3-25-8, Nishi-Shinbashi, Minato-ku, Tokyo 105-8461, Japan.
- Division of Gene Therapy, Research Center for Medical Science, The Jikei University School of Medicine, 3-25-8, Nishi-Shinbashi, Minato-ku, Tokyo 105-8461, Japan.
| | - Takashi Horiuchi
- Department of Surgery, The Jikei University School of Medicine, 3-25-8, Nishi-Shinbashi, Minato-ku, Tokyo 105-8461, Japan.
- Division of Gene Therapy, Research Center for Medical Science, The Jikei University School of Medicine, 3-25-8, Nishi-Shinbashi, Minato-ku, Tokyo 105-8461, Japan.
| | - Nobuhiro Saito
- Department of Surgery, The Jikei University School of Medicine, 3-25-8, Nishi-Shinbashi, Minato-ku, Tokyo 105-8461, Japan.
- Division of Gene Therapy, Research Center for Medical Science, The Jikei University School of Medicine, 3-25-8, Nishi-Shinbashi, Minato-ku, Tokyo 105-8461, Japan.
| | - Yohta Shimada
- Division of Gene Therapy, Research Center for Medical Science, The Jikei University School of Medicine, 3-25-8, Nishi-Shinbashi, Minato-ku, Tokyo 105-8461, Japan.
| | - Ken Eto
- Department of Surgery, The Jikei University School of Medicine, 3-25-8, Nishi-Shinbashi, Minato-ku, Tokyo 105-8461, Japan.
| | - Tadashi Uwagawa
- Department of Surgery, The Jikei University School of Medicine, 3-25-8, Nishi-Shinbashi, Minato-ku, Tokyo 105-8461, Japan.
- Division of Medical Oncology and Hematology, Department of Internal Medicine, The Jikei University School of Medicine, 3-25-8, Nishi-Shinbashi, Minato-ku, Tokyo 105-8461, Japan.
| | - Toya Ohashi
- Division of Gene Therapy, Research Center for Medical Science, The Jikei University School of Medicine, 3-25-8, Nishi-Shinbashi, Minato-ku, Tokyo 105-8461, Japan.
| | - Katsuhiko Yanaga
- Department of Surgery, The Jikei University School of Medicine, 3-25-8, Nishi-Shinbashi, Minato-ku, Tokyo 105-8461, Japan.
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15
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Okur E, Yerlikaya A. A novel and effective inhibitor combination involving bortezomib and OTSSP167 for breast cancer cells in light of label-free proteomic analysis. Cell Biol Toxicol 2018; 35:33-47. [PMID: 29948483 DOI: 10.1007/s10565-018-9435-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2018] [Accepted: 06/06/2018] [Indexed: 01/23/2023]
Abstract
PURPOSE The 26S proteasome plays important roles in many intracellular processes and is therefore a critical intracellular cellular target for anticancer treatments. The primary aim of the current study was to identify critical proteins that may play roles in opposing the antisurvival effect of the proteasome inhibitor bortezomib together with the calcium-chelator BAPTA-AM in cancer cells using label-free LC-MS/MS. In addition, based on the results of the proteomic technique, a novel and more effective inhibitor combination involving bortezomib as well as OTSSP167 was developed for breast cancer cells. METHODS AND RESULTS Using label-free LC-MS/MS, it was found that expressions of 1266 proteins were significantly changed between the experimental groups. Among these proteins were cell division cycle 5-like (Cdc5L) and drebrin-like (DBNL). We then hypothesized that inhibition of the activities of these two proteins may lead to more effective anticancer inhibitor combinations in the presence of proteasomal inhibition. In fact, as presented in the current study, Cdc5L phosphorylation inhibitor CVT-313 and DBNL phosphorylation inhibitor OTSSP167 were highly cytotoxic in 4T1 breast cancer cells and their IC50 values were 20.1 and 43 nM, respectively. Under the same experimental conditions, the IC50 value of BAPTA-AM was found 19.9 μM. Using WST 1 cytotoxicity assay, it was determined that 10 nM bortezomib + 10 nM CVT-313 was more effective than the control, the single treatments, or than 5 nM bortezomib + 5 nM CVT-313. Similarly, 10 nM bortezomib + 10 nM OTSSP167 was more cytotoxic than the control, the monotherapies, 5 nM bortezomib + 5 nM OTSSP167, or than 5 nM bortezomib + 10 nM OTSSP167, indicating that bortezomib + OTSSP167 was also more effective than bortezomib + CVT-313 in a dose-dependent manner. Furthermore, the 3D spheroid model proved that bortezomib + OTSSP167 was more effective than the monotherapies as well as bortezomib + CVT-313 and bortezomib + BAPTA-AM combinations. Finally, the effect of bortezomib + OTSSP167 combination was tested on MDA-MB-231 breast cancer cells, and it similarly determined that 20 nM bortezomib +40 nM OTSSP167 combination completely blocked the formation of 3D spheroids. CONCLUSIONS Altogether, the results presented here indicate that bortezomib + OTSSP167 is a novel and effective combination and may be tested further for cancer treatment in vivo and in clinical settings.
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Affiliation(s)
- Emrah Okur
- Art and Science Faculty, Department of Biology, Kütahya Dumlupınar University, Kütahya, Turkey
| | - Azmi Yerlikaya
- Faculty of Medicine, Department of Medical Biology, Kütahya Health Sciences University, Kütahya, Turkey.
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16
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Nikookar H, Mohammadi-Khanaposhtani M, Imanparast S, Faramarzi MA, Ranjbar PR, Mahdavi M, Larijani B. Design, synthesis and in vitro α-glucosidase inhibition of novel dihydropyrano[3,2-c]quinoline derivatives as potential anti-diabetic agents. Bioorg Chem 2018; 77:280-286. [DOI: 10.1016/j.bioorg.2018.01.025] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2017] [Revised: 01/12/2018] [Accepted: 01/16/2018] [Indexed: 11/26/2022]
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17
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Hoshina H, Shimada Y, Higuchi T, Kobayashi H, Ida H, Ohashi T. Chaperone effect of sulfated disaccharide from heparin on mutant iduronate-2-sulfatase in mucopolysaccharidosis type II. Mol Genet Metab 2018; 123:118-122. [PMID: 29289480 DOI: 10.1016/j.ymgme.2017.12.428] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/28/2017] [Revised: 12/01/2017] [Accepted: 12/09/2017] [Indexed: 11/29/2022]
Abstract
Small molecules called pharmacological chaperones have been shown to improve the stability, intracellular localization, and function of mutated enzymes in several lysosomal storage diseases, and proposed as promising therapeutic agents for them. However, a chaperone compound for mucopolysaccharidosis type II (MPS II), which is an X-linked lysosomal storage disorder characterized by a deficiency of iduronate-2-sulfatase (IDS) and the accumulation of glycosaminoglycans (GAGs), has still not been developed. Here we focused on the Δ-unsaturated 2-sulfouronic acid-N-sulfoglucosamine (D2S0), which is a sulfated disaccharide derived from heparin, as a candidate compound for a pharmacological chaperone for MPS II, and analyzed the chaperone effect of the saccharide on IDS by using recombinant protein and cells expressing mutated enzyme. When D2S0 was incubated with recombinant human IDS (rhIDS) in vitro, the disaccharide attenuated the thermal degeneration of the enzyme. This effect of D2S0 on the thermal degeneration of rhIDS was enhanced in a dose-dependent manner. D2S0 also increased the residual activity of mutant IDS in patient fibroblasts. Furthermore, D2S0 improved the enzyme activity of IDS mutants derived from six out of seven different mutations in HEK293T cells transiently expressing them. These results indicate that D2S0 is a potential pharmacological chaperone for MPS II.
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Affiliation(s)
- Hiroo Hoshina
- Division of Gene Therapy, Research Center for Medical Sciences, The Jikei University School of Medicine, Tokyo 105-8461, Japan; Department of Pediatrics, The Jikei University School of Medicine, Tokyo 105-8461, Japan
| | - Yohta Shimada
- Division of Gene Therapy, Research Center for Medical Sciences, The Jikei University School of Medicine, Tokyo 105-8461, Japan.
| | - Takashi Higuchi
- Division of Gene Therapy, Research Center for Medical Sciences, The Jikei University School of Medicine, Tokyo 105-8461, Japan
| | - Hiroshi Kobayashi
- Division of Gene Therapy, Research Center for Medical Sciences, The Jikei University School of Medicine, Tokyo 105-8461, Japan; Department of Pediatrics, The Jikei University School of Medicine, Tokyo 105-8461, Japan
| | - Hiroyuki Ida
- Division of Gene Therapy, Research Center for Medical Sciences, The Jikei University School of Medicine, Tokyo 105-8461, Japan; Department of Pediatrics, The Jikei University School of Medicine, Tokyo 105-8461, Japan
| | - Toya Ohashi
- Division of Gene Therapy, Research Center for Medical Sciences, The Jikei University School of Medicine, Tokyo 105-8461, Japan; Department of Pediatrics, The Jikei University School of Medicine, Tokyo 105-8461, Japan
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18
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Sun H, Ding W, Song X, Wang D, Chen M, Wang K, Zhang Y, Yuan P, Ma Y, Wang R, Dodd RH, Zhang Y, Lu K, Yu P. Synthesis of 6-hydroxyaurone analogues and evaluation of their α-glucosidase inhibitory and glucose consumption-promoting activity: Development of highly active 5,6-disubstituted derivatives. Bioorg Med Chem Lett 2017; 27:3226-3230. [DOI: 10.1016/j.bmcl.2017.06.040] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2017] [Revised: 06/12/2017] [Accepted: 06/14/2017] [Indexed: 01/16/2023]
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19
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Mohamed FE, Al-Gazali L, Al-Jasmi F, Ali BR. Pharmaceutical Chaperones and Proteostasis Regulators in the Therapy of Lysosomal Storage Disorders: Current Perspective and Future Promises. Front Pharmacol 2017; 8:448. [PMID: 28736525 PMCID: PMC5500627 DOI: 10.3389/fphar.2017.00448] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2017] [Accepted: 06/22/2017] [Indexed: 02/05/2023] Open
Abstract
Different approaches have been utilized or proposed for the treatment of lysosomal storage disorders (LSDs) including enzyme replacement and hematopoietic stem cell transplant therapies, both aiming to compensate for the enzymatic loss of the underlying mutated lysosomal enzymes. However, these approaches have their own limitations and therefore the vast majority of LSDs are either still untreatable or their treatments are inadequate. Missense mutations affecting enzyme stability, folding and cellular trafficking are common in LSDs resulting often in low protein half-life, premature degradation, aggregation and retention of the mutant proteins in the endoplasmic reticulum. Small molecular weight compounds such as pharmaceutical chaperones (PCs) and proteostasis regulators have been in recent years to be promising approaches for overcoming some of these protein processing defects. These compounds are thought to enhance lysosomal enzyme activity by specific binding to the mutated enzyme or by manipulating components of the proteostasis pathways promoting protein stability, folding and trafficking and thus enhancing and restoring some of the enzymatic activity of the mutated protein in lysosomes. Multiple compounds have already been approved for clinical use to treat multiple LSDs like migalastat in the treatment of Fabry disease and others are currently under research or in clinical trials such as Ambroxol hydrochloride and Pyrimethamine. In this review, we are presenting a general overview of LSDs, their molecular and cellular bases, and focusing on recent advances on targeting and manipulation proteostasis, including the use of PCs and proteostasis regulators, as therapeutic targets for some LSDs. In addition, we present the successes, limitations and future perspectives in this field.
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Affiliation(s)
- Fedah E Mohamed
- Department of Pathology, College of Medicine and Health Sciences, United Arab Emirates UniversityAl Ain, United Arab Emirates
| | - Lihadh Al-Gazali
- Department of Pediatrics, College of Medicine and Health Sciences, United Arab Emirates UniversityAl Ain, United Arab Emirates
| | - Fatma Al-Jasmi
- Department of Pediatrics, College of Medicine and Health Sciences, United Arab Emirates UniversityAl Ain, United Arab Emirates
| | - Bassam R Ali
- Department of Pathology, College of Medicine and Health Sciences, United Arab Emirates UniversityAl Ain, United Arab Emirates.,Zayed Bin Sultan Center for Health Sciences, United Arab Emirates UniversityAl-Ain, United Arab Emirates
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20
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Sun H, Zhang Y, Ding W, Zhao X, Song X, Wang D, Li Y, Han K, Yang Y, Ma Y, Wang R, Wang D, Yu P. Inhibitory activity evaluation and mechanistic studies of tetracyclic oxindole derivatives as α-glucosidase inhibitors. Eur J Med Chem 2016; 123:365-378. [DOI: 10.1016/j.ejmech.2016.07.044] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2016] [Revised: 07/19/2016] [Accepted: 07/20/2016] [Indexed: 10/21/2022]
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21
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Synthesis, α-glucosidase inhibitory and molecular docking studies of prenylated and geranylated flavones, isoflavones and chalcones. Bioorg Med Chem Lett 2015; 25:4567-71. [DOI: 10.1016/j.bmcl.2015.08.059] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2015] [Revised: 08/10/2015] [Accepted: 08/21/2015] [Indexed: 11/24/2022]
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22
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Wakabayashi T, Shimada Y, Akiyama K, Higuchi T, Fukuda T, Kobayashi H, Eto Y, Ida H, Ohashi T. Hematopoietic Stem Cell Gene Therapy Corrects Neuropathic Phenotype in Murine Model of Mucopolysaccharidosis Type II. Hum Gene Ther 2015; 26:357-66. [PMID: 25761450 DOI: 10.1089/hum.2014.158] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
Mucopolysaccharidosis type II (MPS II) is a neuropathic lysosomal storage disorder caused by a deficiency of iduronate-2-sulfatase (IDS), which leads to the accumulation of glycosaminoglycans (GAGs). We demonstrated that biochemical alterations in the brains of MPS II mice are not corrected by bone marrow transplantation (BMT) or enzyme replacement therapy, although BMT has been shown to be effective for other neurodegenerative MPSs, such as Hurler syndrome. In this study, we demonstrated that lentiviral isogeneic hematopoietic stem cell (HSC) gene therapy corrected neuronal manifestations by ameliorating lysosomal storage and autophagic dysfunction in the brains of MPS II mice. IDS-transduced HSCs increased enzyme activity both in various visceral organs and the CNS. Decreased levels of GAGs were observed in many organs, including cerebra, after transplantation of IDS-transduced HSCs. In addition, lentiviral HSC gene therapy normalized the secondary accumulation of autophagic substrates, such as p62 and ubiquitin-protein conjugates, in cerebra. Furthermore, in contrast to naive MPS II mice, there was no deterioration of neuronal function observed in transplant recipients. These results indicated that lentiviral HSC gene therapy is a promising approach for the treatment of CNS lesions in MPS II.
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Affiliation(s)
- Taichi Wakabayashi
- 1 Department of Pediatrics, Jikei University School of Medicine , Tokyo 105-8461, Japan .,2 Division of Gene Therapy, Research Center for Medical Sciences, Jikei University School of Medicine , Tokyo 105-8461, Japan
| | - Yohta Shimada
- 2 Division of Gene Therapy, Research Center for Medical Sciences, Jikei University School of Medicine , Tokyo 105-8461, Japan
| | - Kazumasa Akiyama
- 3 Department of Pediatrics, Kitasato University School of Medicine , Kanagawa 252-0374, Japan
| | - Takashi Higuchi
- 2 Division of Gene Therapy, Research Center for Medical Sciences, Jikei University School of Medicine , Tokyo 105-8461, Japan
| | - Takahiro Fukuda
- 4 Division of Neuropathology, Department of Pathology, Jikei University School of Medicine , Tokyo 105-8461, Japan
| | - Hiroshi Kobayashi
- 1 Department of Pediatrics, Jikei University School of Medicine , Tokyo 105-8461, Japan .,2 Division of Gene Therapy, Research Center for Medical Sciences, Jikei University School of Medicine , Tokyo 105-8461, Japan
| | - Yoshikatsu Eto
- 5 Advanced Clinical Research Center, Institute of Neurological Disorders , Kanagawa 215-0026, Japan
| | - Hiroyuki Ida
- 1 Department of Pediatrics, Jikei University School of Medicine , Tokyo 105-8461, Japan .,2 Division of Gene Therapy, Research Center for Medical Sciences, Jikei University School of Medicine , Tokyo 105-8461, Japan
| | - Toya Ohashi
- 1 Department of Pediatrics, Jikei University School of Medicine , Tokyo 105-8461, Japan .,2 Division of Gene Therapy, Research Center for Medical Sciences, Jikei University School of Medicine , Tokyo 105-8461, Japan
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