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Patil MB, Ghode P, Joshi P. A Comprehensive Review on Chemistry and Biology of Tafamidis in Transthyretin Amyloidosis. Mini Rev Med Chem 2024; 24:571-587. [PMID: 37828667 DOI: 10.2174/0113895575241556231003055323] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Revised: 07/30/2023] [Accepted: 07/31/2023] [Indexed: 10/14/2023]
Abstract
Transthyretin amyloid cardiomyopathy and Transthyretin amyloid peripheral neuropathy are progressive disease conditions caused by Transthyretin amyloidosis (ATTR) fibril infiltration in the tissue. Transthyretin (TTR) protein misfolding and amyloid fibril deposits are pathological biomarkers of ATTR-related disorders. There are various treatment strategies targeting different stages in pathophysiology. One such strategy is TTR tetramer stabilization. Recently, a new TTR tetramer stabilizer, tafamidis, has been introduced that reduces the protein misfolding and amyloidosis and, consequently, disease progression in ATTR cardiomyopathy and peripheral neuropathy. This review will provide a comprehensive overview of the literature on tafamidis discovery, development, synthetic methods, pharmacokinetics, analytical methods and clinical trials. Overall, 7 synthetic methods, 5 analytical methods and 23 clinical trials have been summarized from the literature.
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Affiliation(s)
- Monali B Patil
- SVKM's NMIMS School of Pharmacy & Technology Management, Shirpur, and Maharashtra, India
| | - Piyush Ghode
- SVKM's NMIMS School of Pharmacy & Technology Management, Shirpur, and Maharashtra, India
| | - Prashant Joshi
- SVKM's NMIMS School of Pharmacy & Technology Management, Shirpur, and Maharashtra, India
- Department of Pharmaceutical Sciences, School of Health Sciences and Technology, Dr. Vishwanath Karad MIT World Peace University, Pune, Maharashtra, India
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2
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Golatkar V, Bhatt LK. Emerging therapeutic avenues in cardiac amyloidosis. Eur J Pharmacol 2023; 960:176142. [PMID: 37866746 DOI: 10.1016/j.ejphar.2023.176142] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 10/15/2023] [Accepted: 10/19/2023] [Indexed: 10/24/2023]
Abstract
Cardiac Amyloidosis (CA) is a toxic infiltrative cardiomyopathy occurred by the deposition of the amyloid fibres in the extracellular matrix of the myocardium. This results in severe clinical complications such as increased left ventricular wall thickness and interventricular stiffness, a decrease in left ventricular stroke volume and cardiac output, diastolic dysfunction, arrhythmia, etc. In a prolonged period, this condition progresses into heart failure. The amyloid fibres affecting the heart include immunoglobulin light chain (AL - amyloidosis) and transthyretin protein (ATTR - amyloidosis) misfolded amyloid fibres. ATTRwt has the highest prevalence of 155 to 191 cases per million while ATTRv has an estimated prevalence of 5.2 cases per million. The pathological findings and therapeutic approaches developed recently have aided in the treatment regimen of cardiac amyloidosis patients. In recent years, understanding the pathophysiology of amyloid fibres formation and mechanistic pathways triggered in both types of cardiac amyloidosis has led to the development of new therapeutic approaches and agents. This review focuses on the current status of emerging therapeutic agents in clinical trials. Earlier, melphalan and bortezomib in combination with alkylating agents and immunomodulatory drugs were used as a standard therapy for AL amyloidosis. Tafamidis, approved recently by FDA is used as a standard for ATTR amyloidosis. However, the emerging therapeutic agents under development for the treatment of AL and ATTR cardiac amyloidosis have shown a potent and rapid effect with a safety profile.
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Affiliation(s)
- Vaishnavi Golatkar
- Department of Pharmacology, SVKM's Dr. Bhanuben Nanavati College of Pharmacy, Vile Parle (W), Mumbai, India
| | - Lokesh Kumar Bhatt
- Department of Pharmacology, SVKM's Dr. Bhanuben Nanavati College of Pharmacy, Vile Parle (W), Mumbai, India.
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3
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Ciccone L, Camodeca C, Tonali N, Barlettani L, Rossello A, Fruchart Gaillard C, Kaffy J, Petrarolo G, La Motta C, Nencetti S, Orlandini E. New Hybrid Compounds Incorporating Natural Products as Multifunctional Agents against Alzheimer's Disease. Pharmaceutics 2023; 15:2369. [PMID: 37896129 PMCID: PMC10610016 DOI: 10.3390/pharmaceutics15102369] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2023] [Revised: 09/06/2023] [Accepted: 09/15/2023] [Indexed: 10/29/2023] Open
Abstract
A series of new hybrid derivatives 1a-c, 2a-c, 3a-c, 4a-c, 5a-c, inspired by nature, were synthesized and studied as multifunctional agents for the treatment of Alzheimer's disease (AD). These compounds were designed to merge together the trifluoromethyl benzyloxyaminic bioactive moiety, previously identified, with different acids available in nature. The ability of the synthesized compounds to chelate biometals, such as Cu2+, Zn2+ and Fe2+, was studied by UV-Vis spectrometer, and through a preliminary screening their antioxidant activity was evaluated by DPPH. Then, selected compounds were tested by in vitro ABTS free radical method and ex vivo rat brain TBARS assay. Compounds 2a-c, combining the strongest antioxidant and biometal chelators activities, were studied for their ability to contrast Aβ1-40 fibrillization process. Finally, starting from the promising profile obtained for compound 2a, we evaluated if it could be able to induce a positive cross-interaction between transthyretin (TTR) and Aβ in presence and in absence of Cu2+.
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Affiliation(s)
- Lidia Ciccone
- Department of Pharmacy, University of Pisa, Via Bonanno 6, 56126 Pisa, Italy; (C.C.); (L.B.); (A.R.); (G.P.); (C.L.M.)
| | - Caterina Camodeca
- Department of Pharmacy, University of Pisa, Via Bonanno 6, 56126 Pisa, Italy; (C.C.); (L.B.); (A.R.); (G.P.); (C.L.M.)
| | - Nicolò Tonali
- CNRS, BioCIS, Bâtiment Henri Moissan, Université Paris-Saclay, 17 Av. des Sciences, 91400 Orsay, France; (N.T.); (J.K.)
| | - Lucia Barlettani
- Department of Pharmacy, University of Pisa, Via Bonanno 6, 56126 Pisa, Italy; (C.C.); (L.B.); (A.R.); (G.P.); (C.L.M.)
| | - Armando Rossello
- Department of Pharmacy, University of Pisa, Via Bonanno 6, 56126 Pisa, Italy; (C.C.); (L.B.); (A.R.); (G.P.); (C.L.M.)
- Research Center “E. Piaggio”, University of Pisa, 56122 Pisa, Italy;
| | - Carole Fruchart Gaillard
- CEA, INRAE, Département Médicaments et Technologies pour la Santé (DMTS), SIMoS, Université Paris Saclay, 91191 Gif-sur-Yvette, France;
| | - Julia Kaffy
- CNRS, BioCIS, Bâtiment Henri Moissan, Université Paris-Saclay, 17 Av. des Sciences, 91400 Orsay, France; (N.T.); (J.K.)
| | - Giovanni Petrarolo
- Department of Pharmacy, University of Pisa, Via Bonanno 6, 56126 Pisa, Italy; (C.C.); (L.B.); (A.R.); (G.P.); (C.L.M.)
| | - Concettina La Motta
- Department of Pharmacy, University of Pisa, Via Bonanno 6, 56126 Pisa, Italy; (C.C.); (L.B.); (A.R.); (G.P.); (C.L.M.)
| | - Susanna Nencetti
- Department of Pharmacy, University of Pisa, Via Bonanno 6, 56126 Pisa, Italy; (C.C.); (L.B.); (A.R.); (G.P.); (C.L.M.)
| | - Elisabetta Orlandini
- Research Center “E. Piaggio”, University of Pisa, 56122 Pisa, Italy;
- Department of Earth Sciences, University of Pisa, Via Santa Maria 53, 56126 Pisa, Italy
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Lee SB, Yu J, Kim H, Kim KW, Jeong JW, Kim YL, Park SJ, Koo TS, Lee C, Hong KB, Choi S. Novel Strategy To Inhibit Transthyretin Amyloidosis via the Synergetic Effect of Chemoselective Acylation and Noncovalent Inhibitor Release. J Med Chem 2023; 66:2893-2903. [PMID: 36749109 DOI: 10.1021/acs.jmedchem.2c01926] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Strategies for developing targeted covalent inhibitors (TCIs), which have the advantages of a prolonged duration of action and selectivity toward a drug target, have attracted great interest in drug discovery. Herein, we report chemoselective covalent inhibitors that specifically target lysine ε-amine groups that conjugate with an endogenous protein to prevent disease-causing protein misfolding and aggregation. These TCIs are unique because the benzoyl group is preferentially conjugated to Lys15 at the top of the T4 binding site within transthyretin (TTR) while simultaneously releasing a potent noncovalent TTR kinetic stabilizer. The potency of these covalent inhibitors is superior to tafamidis, the only FDA-approved drug for the treatment of hereditary TTR amyloidosis. In addition to investigations into the covalent modification of TTR via reverse-phase high-performance liquid chromatography, direct methods are performed to confirm and visualize the presumed covalent interaction via mass spectrometry and X-ray crystallography.
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Affiliation(s)
- Seok Beom Lee
- Graduate School of New Drug Discovery and Development, Chungnam National University, Daejon 34134, Republic of Korea
| | - Jaeni Yu
- Graduate School of New Drug Discovery and Development, Chungnam National University, Daejon 34134, Republic of Korea
| | - Hyunwoo Kim
- Department of Biological Sciences, Ulsan National Institute of Science and Technology, Ulsan 44919, Republic of Korea
| | - Kun Woo Kim
- Graduate School of New Drug Discovery and Development, Chungnam National University, Daejon 34134, Republic of Korea
| | - Jong Woo Jeong
- Graduate School of New Drug Discovery and Development, Chungnam National University, Daejon 34134, Republic of Korea
| | - Yun Lan Kim
- Graduate School of New Drug Discovery and Development, Chungnam National University, Daejon 34134, Republic of Korea
| | - Sung Jean Park
- College of Pharmacy and Gachon Institute of Pharmaceutical Sciences, Gachon University, Incheon 21936, Republic of Korea
| | - Tae-Sung Koo
- Graduate School of New Drug Discovery and Development, Chungnam National University, Daejon 34134, Republic of Korea
| | - Changwook Lee
- Department of Biological Sciences, Ulsan National Institute of Science and Technology, Ulsan 44919, Republic of Korea
| | - Ki Bum Hong
- New Drug Development Center (NDDC), Daegu-Gyeongbuk Medical Innovation Foundation (DGMIF), Daegu 41061, Republic of Korea
| | - Sungwook Choi
- Graduate School of New Drug Discovery and Development, Chungnam National University, Daejon 34134, Republic of Korea
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Sedov I, Khaibrakhmanova D. Molecular Mechanisms of Inhibition of Protein Amyloid Fibril Formation: Evidence and Perspectives Based on Kinetic Models. Int J Mol Sci 2022; 23:ijms232113428. [PMID: 36362217 PMCID: PMC9657184 DOI: 10.3390/ijms232113428] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2022] [Revised: 10/29/2022] [Accepted: 10/31/2022] [Indexed: 11/06/2022] Open
Abstract
Inhibition of fibril formation is considered a possible treatment strategy for amyloid-related diseases. Understanding the molecular nature of inhibitor action is crucial for the design of drug candidates. In the present review, we describe the common kinetic models of fibril formation and classify known inhibitors by the mechanism of their interactions with the aggregating protein and its oligomers. This mechanism determines the step or steps of the aggregation process that become inhibited and the observed changes in kinetics and equilibrium of fibril formation. The results of numerous studies indicate that possible approaches to antiamyloid inhibitor discovery include the search for the strong binders of protein monomers, cappers blocking the ends of the growing fibril, or the species absorbing on the surface of oligomers preventing nucleation. Strongly binding inhibitors stabilizing the native state can be promising for the structured proteins while designing the drug candidates targeting disordered proteins is challenging.
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Affiliation(s)
- Igor Sedov
- Chemical Institute, Kazan Federal University, Kremlevskaya 18, 420008 Kazan, Russia
- Kazan Institute of Biochemistry and Biophysics, FRC Kazan Scientific Center of RAS, 420111 Kazan, Russia
- Sirius University of Science and Technology, 1 Olympic Ave, 354340 Sochi, Russia
- Correspondence: ; Tel.: +7-9600503916
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Prosswimmer T, Daggett V. The role of α-sheet structure in amyloidogenesis: characterization and implications. Open Biol 2022; 12:220261. [PMID: 36416010 PMCID: PMC9682440 DOI: 10.1098/rsob.220261] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
Amyloid diseases are linked to protein misfolding whereby the amyloidogenic protein undergoes a conformational change, aggregates and eventually forms amyloid fibrils. While the amyloid fibrils and plaques are hallmarks of these diseases, they typically form late in the disease process and do not correlate with disease. Instead, there is growing evidence that smaller, soluble toxic oligomers form prior and appear to be early triggers of the molecular pathology underlying these diseases. Nearly 20 years ago, we proposed the α-sheet hypothesis after discovering that the early conformational changes observed during atomistic molecular dynamics simulations involve the formation of a non-standard protein structure, α-sheet. Furthermore, we proposed that toxic oligomers contain α-sheet structure and that preferentially targeting this structure could neutralize the toxicity, prevent further aggregation and serve as the basis for early detection of disease. Here, we present the origin of the α-sheet hypothesis and describe α-sheet structure and the corresponding mechanisms of conversion. We discuss experimental studies demonstrating that both mammalian and bacterial amyloid systems form α-sheet oligomers before converting to conventional β-sheet fibrils. Furthermore, we show that the process can be inhibited with de novo designed α-sheet peptides complementary to the structure in the toxic oligomers.
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Affiliation(s)
- Tatum Prosswimmer
- Molecular Engineering Program, University of Washington, Seattle, WA 98195-5013, USA
| | - Valerie Daggett
- Molecular Engineering Program, University of Washington, Seattle, WA 98195-5013, USA,Department of Bioengineering, University of Washington, Seattle, WA 98195-5013, USA
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7
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Antioxidant Quercetin 3-O-Glycosylated Plant Flavonols Contribute to Transthyretin Stabilization. CRYSTALS 2022. [DOI: 10.3390/cryst12050638] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Plants are rich in secondary metabolites, which are often useful as a relevant source of nutraceuticals. Quercetin (QUE) is a flavonol aglycone able to bind Transthyretin (TTR), a plasma protein that under pathological conditions can lose its native structure leading to fibrils formation and amyloid diseases onset. Here, the dual nature of five quercetin 3-O-glycosylated flavonol derivatives, isolated from different plant species, such as possible binders of TTR and antioxidants, was investigated. The crystal structure of 3-O-β-D-galactopyranoside in complex with TTR was solved, suggesting that not only quercetin but also its metabolites can contribute to stabilizing the TTR tetramer.
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Ciccone L, Nencetti S, Camodeca C, Ortore G, Cuffaro D, Socci S, Orlandini E. Synthesis and Evaluation of Monoaryl Derivatives as Transthyretin Fibril Formation Inhibitors. Pharm Chem J 2022. [DOI: 10.1007/s11094-022-02600-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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9
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O'Reilly EL, Horvatić A, Kuleš J, Gelemanović A, Mrljak V, Huang Y, Brady N, Chadwick CC, Eckersall PD, Ridyard A. Faecal proteomics in the identification of biomarkers to differentiate canine chronic enteropathies. J Proteomics 2021; 254:104452. [PMID: 34958965 DOI: 10.1016/j.jprot.2021.104452] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Revised: 11/08/2021] [Accepted: 11/22/2021] [Indexed: 11/18/2022]
Abstract
Canine chronic enteropathy (CCE) is a collective term used to describe a group of idiopathic enteropathies of dogs that result in a variety of clinical manifestations of intestinal dysfunction. Clinical stratification into food-responsive enteropathy (FRE) or non-food responsive chronic inflammatory enteropathy (CIE), is made retrospectively based on response to treatments. Faecal extracts from those with a FRE (n = 5) and those with non-food responsive chronic inflammatory enteropathies (CIE) (n = 6) were compared to a healthy control group (n = 14) by applying TMT-based quantitative proteomic approach. Many of the proteins with significant differential abundance between groups were pancreatic or intestinal enzymes with pancreatitis-associated protein (identified as REG3α) and pancreatic M14 metallocarboxypeptidase proteins carboxypeptidase A1 and B identified as being of significantly increased abundance in the CCE group. The reactome analysis revealed the recycling of bile acids and salts and their metabolism to be present in the FRE group, suggesting a possible dysbiotic aetiology. Several acute phase proteins were significantly more abundant in the CCE group with the significant increase in haptoglobin in the CIE group especially notable. Further research of these proteins is needed to fully assess their clinical utility as faecal biomarkers for differentiating CCE cases. SIGNIFICANCE: The identification and characterisation of biomarkers that differentiate FRE from other forms of CIE would prove invaluable in streamlining clinical decision-making and would avoid costly and invasive investigations and delays in implementing effective treatment. Many of the proteins described here, as canine faecal proteins for the first time, have been highlighted in previous human and murine inflammatory bowl disease (IBD) studies initiating a new chapter in canine faecal biomarker research, where early and non-invasive biomarkers for early clinical stratification of CCE cases are needed. Pancreatitis-associated protein, pancreatic M14 metallocarboxypeptidase along with carboxypeptidase A1 and B are identified as being of significantly increased abundance in the CCE groups. Several acute phase proteins, were significantly more abundant in the CCE group notably haptoglobin in dogs with inflammatory enteropathy. The recognition of altered bile acid metabolism in the reactome analysis in the FRE group is significant in CCE which is a complex condition incorporating of immunological, dysbiotic and faecal bile acid dysmetabolism. Both proteomics and immunoassays will enable the characterisation of faecal APPs as well as other inflammatory and immune mediators, and the utilisation of assays, validated for use in analysis of faeces of veterinary species will enable clinical utilisation of faecal matrix to be fully realised.
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Affiliation(s)
- Emily L O'Reilly
- Institute of Biodiversity, Animal Health & Comparative Medicine, University of Glasgow, Bearsden Rd, Glasgow G61 1QH, Scotland, UK. Emily.O'
| | - Anita Horvatić
- Faculty of Food Technology and Biotechnology, University of Zagreb, Pierottijeva 6, Zagreb, Croatia; Faculty of Veterinary Medicine, University of Zagreb, Heinzelova 55, 10 000 Zagreb, Croatia
| | - Josipa Kuleš
- Faculty of Veterinary Medicine, University of Zagreb, Heinzelova 55, 10 000 Zagreb, Croatia.
| | - Andrea Gelemanović
- Mediterranean Institute for Life Sciences (MedILS), 21000 Split, Croatia
| | - Vladimir Mrljak
- Faculty of Veterinary Medicine, University of Zagreb, Heinzelova 55, 10 000 Zagreb, Croatia.
| | - Yixin Huang
- Institute of Biodiversity, Animal Health & Comparative Medicine, University of Glasgow, Bearsden Rd, Glasgow G61 1QH, Scotland, UK.
| | - Nicola Brady
- Institute of Biodiversity, Animal Health & Comparative Medicine, University of Glasgow, Bearsden Rd, Glasgow G61 1QH, Scotland, UK.
| | | | - P David Eckersall
- Institute of Biodiversity, Animal Health & Comparative Medicine, University of Glasgow, Bearsden Rd, Glasgow G61 1QH, Scotland, UK; Faculty of Veterinary Medicine, University of Zagreb, Heinzelova 55, 10 000 Zagreb, Croatia.
| | - Alison Ridyard
- School of Veterinary Medicine, University of Glasgow, Bearsden Rd, Glasgow G61 1QH, Scotland, UK.
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Sun F, Liu J, Huang Y, Zhu X, Liu Y, Zhang L, Yan J. A quinoline derived D-A-D type fluorescent probe for sensing tetrameric transthyretin. Bioorg Med Chem Lett 2021; 52:128408. [PMID: 34626785 DOI: 10.1016/j.bmcl.2021.128408] [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: 06/15/2021] [Revised: 09/20/2021] [Accepted: 10/01/2021] [Indexed: 10/20/2022]
Abstract
Nowadays, with an upward trend in the prevalence of intracerebral amyloidosis, it is of great significance to use fluorescent probes for early diagnosis in vitro. In this study, a quinoline-derived D-A-D type chemosensor was rationally designed and synthesized as a probe for the sensitive detection of tetrameric transthyretin (WT-TTR).
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Affiliation(s)
- Fantao Sun
- MOE International Joint Research Laboratory on Synthetic Biology and Medicines, School of Biology and Biological Engineering, South China University of Technology, Guangzhou 510006, PR China
| | - Jinsheng Liu
- MOE International Joint Research Laboratory on Synthetic Biology and Medicines, School of Biology and Biological Engineering, South China University of Technology, Guangzhou 510006, PR China
| | - Yanan Huang
- CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, PR China
| | - Xinyin Zhu
- MOE International Joint Research Laboratory on Synthetic Biology and Medicines, School of Biology and Biological Engineering, South China University of Technology, Guangzhou 510006, PR China
| | - Yu Liu
- CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, PR China
| | - Lei Zhang
- MOE International Joint Research Laboratory on Synthetic Biology and Medicines, School of Biology and Biological Engineering, South China University of Technology, Guangzhou 510006, PR China
| | - Jinwu Yan
- MOE International Joint Research Laboratory on Synthetic Biology and Medicines, School of Biology and Biological Engineering, South China University of Technology, Guangzhou 510006, PR China.
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The discovery and development of transthyretin amyloidogenesis inhibitors: what are the lessons? Future Med Chem 2021; 13:2083-2105. [PMID: 34633220 DOI: 10.4155/fmc-2021-0248] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Transthyretin (TTR) is associated with several human amyloid diseases. Various kinetic stabilizers have been developed to inhibit the dissociation of TTR tetramer and the formation of amyloid fibrils. Most of them are bisaryl derivatives, natural flavonoids, crown ethers and carborans. In this review article, we focus on TTR tetramer stabilizers, genetic therapeutic approaches and fibril remodelers. The binding modes of typical bisaryl derivatives, natural flavonoids, crown ethers and carborans are discussed. Based on knowledge of the binding of thyroxine to TTR tetramer, many stabilizers have been screened to dock into the thyroxine binding sites, leading to TTR tetramer stabilization. Particularly, those stabilizers with unique binding profiles have shown great potential in developing the therapeutic management of TTR amyloidogenesis.
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12
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Physiological Metals Can Induce Conformational Changes in Transthyretin Structure: Neuroprotection or Misfolding Induction? CRYSTALS 2021. [DOI: 10.3390/cryst11040354] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Transthyretin (TTR) is a plasma homotetrameric protein that transports thyroxine and retinol. TTR itself, under pathological conditions, dissociates into partially unfolded monomers that aggregate and form fibrils. Metal ions such as Zn2+, Cu2+, Fe2+, Mn2+ and Ca2+ play a controversial role in the TTR amyloidogenic pathway. TTR is also present in cerebrospinal fluid (CSF), where it behaves as one of the major Aβ-binding-proteins. The interaction between TTR and Aβ is stronger in the presence of high concentrations of Cu2+. Crystals of TTR, soaked in solutions of physiological metals such as Cu2+ and Fe2+, but not Mn2+, Zn2+, Fe3+, Al3+, Ni2+, revealed an unusual conformational change. Here, we investigate the effects that physiological metals have on TTR, in order to understand if metals can induce a specific and active conformation of TTR that guides its Aβ-scavenging role. The capability of certain metals to induce and accelerate its amyloidogenic process is also discussed.
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Cotrina EY, Blasi D, Vilà M, Planas A, Abad-Zapatero C, Centeno NB, Quintana J, Arsequell G. Optimization of kinetic stabilizers of tetrameric transthyretin: A prospective ligand efficiency-guided approach. Bioorg Med Chem 2020; 28:115794. [DOI: 10.1016/j.bmc.2020.115794] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Revised: 09/23/2020] [Accepted: 09/24/2020] [Indexed: 12/15/2022]
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The Function of Transthyretin Complexes with Metallothionein in Alzheimer's Disease. Int J Mol Sci 2020; 21:ijms21239003. [PMID: 33256250 PMCID: PMC7730073 DOI: 10.3390/ijms21239003] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Revised: 11/23/2020] [Accepted: 11/24/2020] [Indexed: 12/12/2022] Open
Abstract
Alzheimer’s disease (AD) is one of the most frequently diagnosed types of dementia in the elderly. An important pathological feature in AD is the aggregation and deposition of the β-amyloid (Aβ) in extracellular plaques. Transthyretin (TTR) can cleave Aβ, resulting in the formation of short peptides with less activity of amyloid plaques formation, as well as being able to degrade Aβ peptides that have already been aggregated. In the presence of TTR, Aβ aggregation decreases and toxicity of Aβ is abolished. This may prevent amyloidosis but the malfunction of this process leads to the development of AD. In the context of Aβplaque formation in AD, we discuss metallothionein (MT) interaction with TTR, the effects of which depend on the type of MT isoform. In the brains of patients with AD, the loss of MT-3 occurs. On the contrary, MT-1/2 level has been consistently reported to be increased. Through interaction with TTR, MT-2 reduces the ability of TTR to bind to Aβ, while MT-3 causes the opposite effect. It increases TTR-Aβ binding, providing inhibition of Aβ aggregation. The protective effect, assigned to MT-3 against the deposition of Aβ, relies also on this mechanism. Additionally, both Zn7MT-2 and Zn7MT-3, decrease Aβ neurotoxicity in cultured cortical neurons probably because of a metal swap between Zn7MT and Cu(II)Aβ. Understanding the molecular mechanism of metals transfer between MT and other proteins as well as cognition of the significance of TTR interaction with different MT isoforms can help in AD treatment and prevention.
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Cotrina EY, Oliveira Â, Leite JP, Llop J, Gales L, Quintana J, Cardoso I, Arsequell G. Repurposing Benzbromarone for Familial Amyloid Polyneuropathy: A New Transthyretin Tetramer Stabilizer. Int J Mol Sci 2020; 21:E7166. [PMID: 32998442 PMCID: PMC7583827 DOI: 10.3390/ijms21197166] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2020] [Accepted: 09/24/2020] [Indexed: 12/19/2022] Open
Abstract
Transthyretin (TTR) is a homotetrameric protein involved in human amyloidosis, including familial amyloid polyneuropathy (FAP). Discovering small-molecule stabilizers of the TTR tetramer is a therapeutic strategy for these diseases. Tafamidis, the only approved drug for FAP treatment, is not effective for all patients. Herein, we discovered that benzbromarone (BBM), a uricosuric drug, is an effective TTR stabilizer and inhibitor against TTR amyloid fibril formation. BBM rendered TTR more resistant to urea denaturation, similarly to iododiflunisal (IDIF), a very potent TTR stabilizer. BBM competes with thyroxine for binding in the TTR central channel, with an IC50 similar to IDIF and tafamidis. Results obtained by isothermal titration calorimetry (ITC) demonstrated that BBM binds TTR with an affinity similar to IDIF, tolcapone and tafamidis, confirming BBM as a potent binder of TTR. The crystal structure of the BBM-TTR complex shows two molecules binding deeply in the thyroxine binding channel, forming strong intermonomer hydrogen bonds and increasing the stability of the TTR tetramer. Finally, kinetic analysis of the ability of BBM to inhibit TTR fibrillogenesis at acidic pH and comparison with other stabilizers revealed that benzbromarone is a potent inhibitor of TTR amyloidogenesis, adding a new interesting scaffold for drug design of TTR stabilizers.
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Affiliation(s)
- Ellen Y. Cotrina
- Institut de Química Avançada de Catalunya (I.Q.A.C.-C.S.I.C.), 08034 Barcelona, Spain;
| | - Ângela Oliveira
- IBMC—Instituto de Biologia Molecular e Celular, 4200-135 Porto, Portugal; (Â.O.); (J.P.L.); (L.G.)
- i3S—Instituto de Investigação e Inovação em Saúde, Universidade do Porto, 4200-135 Porto, Portugal
| | - José Pedro Leite
- IBMC—Instituto de Biologia Molecular e Celular, 4200-135 Porto, Portugal; (Â.O.); (J.P.L.); (L.G.)
- i3S—Instituto de Investigação e Inovação em Saúde, Universidade do Porto, 4200-135 Porto, Portugal
- Instituto de Ciências Biomédicas Abel Salazar (ICBAS), 4050-013 Porto, Portugal
| | - Jordi Llop
- CIC biomaGUNE, Basque Research and Technology Alliance (BRTA), 20014 San Sebastian, Spain;
| | - Luis Gales
- IBMC—Instituto de Biologia Molecular e Celular, 4200-135 Porto, Portugal; (Â.O.); (J.P.L.); (L.G.)
- i3S—Instituto de Investigação e Inovação em Saúde, Universidade do Porto, 4200-135 Porto, Portugal
- Instituto de Ciências Biomédicas Abel Salazar (ICBAS), 4050-013 Porto, Portugal
| | - Jordi Quintana
- Research Programme on Biomedical Informatics, Universitat Pompeu Fabra (UPF-IMIM), 08003 Barcelona, Spain;
| | - Isabel Cardoso
- IBMC—Instituto de Biologia Molecular e Celular, 4200-135 Porto, Portugal; (Â.O.); (J.P.L.); (L.G.)
- i3S—Instituto de Investigação e Inovação em Saúde, Universidade do Porto, 4200-135 Porto, Portugal
- Instituto de Ciências Biomédicas Abel Salazar (ICBAS), 4050-013 Porto, Portugal
| | - Gemma Arsequell
- Institut de Química Avançada de Catalunya (I.Q.A.C.-C.S.I.C.), 08034 Barcelona, Spain;
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Ciccone L, Shi C, di Lorenzo D, Van Baelen AC, Tonali N. The Positive Side of the Alzheimer's Disease Amyloid Cross-Interactions: The Case of the Aβ 1-42 Peptide with Tau, TTR, CysC, and ApoA1. Molecules 2020; 25:E2439. [PMID: 32456156 PMCID: PMC7288020 DOI: 10.3390/molecules25102439] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2020] [Revised: 05/18/2020] [Accepted: 05/22/2020] [Indexed: 12/20/2022] Open
Abstract
Alzheimer's disease (AD) represents a progressive amyloidogenic disorder whose advancement is widely recognized to be connected to amyloid-β peptides and Tau aggregation. However, several other processes likely contribute to the development of AD and some of them might be related to protein-protein interactions. Amyloid aggregates usually contain not only single type of amyloid protein, but also other type of proteins and this phenomenon can be rationally explained by the process of protein cross-seeding and co-assembly. Amyloid cross-interaction is ubiquitous in amyloid fibril formation and so a better knowledge of the amyloid interactome could help to further understand the mechanisms of amyloid related diseases. In this review, we discuss about the cross-interactions of amyloid-β peptides, and in particular Aβ1-42, with other amyloids, which have been presented either as integrated part of Aβ neurotoxicity process (such as Tau) or conversely with a preventive role in AD pathogenesis by directly binding to Aβ (such as transthyretin, cystatin C and apolipoprotein A1). Particularly, we will focus on all the possible therapeutic strategies aiming to rescue the Aβ toxicity by taking inspiration from these protein-protein interactions.
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Affiliation(s)
- Lidia Ciccone
- Department of Pharmacy, University of Pisa, via Bonanno 6, 56126 Pisa, Italy
| | - Chenghui Shi
- CNRS, BioCIS, Université Paris-Saclay, rue Jean-Baptiste Clément 5, 92290 Châtenay-Malabry, France; (C.S.); (D.d.L.)
| | - Davide di Lorenzo
- CNRS, BioCIS, Université Paris-Saclay, rue Jean-Baptiste Clément 5, 92290 Châtenay-Malabry, France; (C.S.); (D.d.L.)
| | - Anne-Cécile Van Baelen
- Département Médicaments et Technologies pour la Santé (DMTS), CEA, INRAE, Université Paris Saclay, SIMoS, 91191 Gif-sur-Yvette, France;
| | - Nicolo Tonali
- CNRS, BioCIS, Université Paris-Saclay, rue Jean-Baptiste Clément 5, 92290 Châtenay-Malabry, France; (C.S.); (D.d.L.)
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