1
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Panda C, Kumar S, Gupta S, Pandey LM. Insulin fibrillation under physicochemical parameters of bioprocessing and intervention by peptides and surface-active agents. Crit Rev Biotechnol 2024:1-22. [PMID: 39142855 DOI: 10.1080/07388551.2024.2387167] [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: 01/13/2023] [Revised: 04/23/2023] [Accepted: 06/17/2023] [Indexed: 08/16/2024]
Abstract
Even after the centenary celebration of insulin discovery, there prevail challenges concerning insulin aggregation, not only after repeated administration but also during industrial production, storage, transport, and delivery, significantly impacting protein quality, efficacy, and effectiveness. The aggregation reduces insulin bioavailability, increasing the risk of heightened immunogenicity, posing a threat to patient health, and creating a dent in the golden success story of insulin therapy. Insulin experiences various physicochemical and mechanical stresses due to modulations in pH, temperature, ionic strength, agitation, shear, and surface chemistry, during the upstream and downstream bioprocessing, resulting in insulin unfolding and subsequent fibrillation. This has fueled research in the pharmaceutical industry and academia to unveil the mechanistic insights of insulin aggregation in an attempt to devise rational strategies to regulate this unwanted phenomenon. The present review briefly describes the impacts of environmental factors of bioprocessing on the stability of insulin and correlates with various intermolecular interactions, particularly hydrophobic and electrostatic forces. The aggregation-prone regions of insulin are identified and interrelated with biophysical changes during stress conditions. The quest for novel additives, surface-active agents, and bioderived peptides in decelerating insulin aggregation, which results in overall structural stability, is described. We hope this review will help tackle the real-world challenges of insulin aggregation encountered during bioprocessing, ensuring safer, stable, and globally accessible insulin for efficient management of diabetes.
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Affiliation(s)
- Chinmaya Panda
- Bio-interface & Environmental Engineering Lab, Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati, India
| | - Sachin Kumar
- Viral Immunology Lab, Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati, India
| | - Sharad Gupta
- Neurodegeneration and Peptide Engineering Research Lab, Department of Biological Sciences and Engineering, Indian Institute of Technology Gandhinagar, Gandhinagar, India
| | - Lalit M Pandey
- Bio-interface & Environmental Engineering Lab, Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati, India
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2
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Suladze S, Sarkar R, Rodina N, Bokvist K, Krewinkel M, Scheps D, Nagel N, Bardiaux B, Reif B. Atomic resolution structure of full-length human insulin fibrils. Proc Natl Acad Sci U S A 2024; 121:e2401458121. [PMID: 38809711 PMCID: PMC11161806 DOI: 10.1073/pnas.2401458121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2024] [Accepted: 05/02/2024] [Indexed: 05/31/2024] Open
Abstract
Patients with type 1 diabetes mellitus who are dependent on an external supply of insulin develop insulin-derived amyloidosis at the sites of insulin injection. A major component of these plaques is identified as full-length insulin consisting of the two chains A and B. While there have been several reports that characterize insulin misfolding and the biophysical properties of the fibrils, atomic-level information on the insulin fibril architecture remains elusive. We present here an atomic resolution structure of a monomorphic insulin amyloid fibril that has been determined using magic angle spinning solid-state NMR spectroscopy. The structure of the insulin monomer yields a U-shaped fold in which the two chains A and B are arranged in parallel to each other and are oriented perpendicular to the fibril axis. Each chain contains two β-strands. We identify two hydrophobic clusters that together with the three preserved disulfide bridges define the amyloid core structure. The surface of the monomeric amyloid unit cell is hydrophobic implicating a potential dimerization and oligomerization interface for the assembly of several protofilaments in the mature fibril. The structure provides a starting point for the development of drugs that bind to the fibril surface and disrupt secondary nucleation as well as for other therapeutic approaches to attenuate insulin aggregation.
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Affiliation(s)
- Saba Suladze
- Bavarian Nuclear Magnetic Resonance Center at the Department of Biosciences, School of Natural Sciences, Technische Universität München, Garching85747, Germany
- Helmholtz-Zentrum München, Deutsches Forschungszentrum für Gesundheit und Umwelt, Institute of Structural Biology, Neuherberg85764, Germany
| | - Riddhiman Sarkar
- Bavarian Nuclear Magnetic Resonance Center at the Department of Biosciences, School of Natural Sciences, Technische Universität München, Garching85747, Germany
- Helmholtz-Zentrum München, Deutsches Forschungszentrum für Gesundheit und Umwelt, Institute of Structural Biology, Neuherberg85764, Germany
| | - Natalia Rodina
- Bavarian Nuclear Magnetic Resonance Center at the Department of Biosciences, School of Natural Sciences, Technische Universität München, Garching85747, Germany
| | - Krister Bokvist
- Sanofi-Aventis Deutschland GmbH, Diabetes Research, Industriepark Höchst, Frankfurt65926, Germany
| | - Manuel Krewinkel
- Sanofi-Aventis Deutschland GmbH, Manufacturing Science and Technology, Industriepark Höchst, Frankfurt65926, Germany
| | - Daniel Scheps
- Chemistry Manufacturing & Controls Microbial Platform, Sanofi-Aventis Deutschland GmbH, Microbial Platform, Industriepark Höchst, Frankfurt65926, Germany
| | - Norbert Nagel
- Sanofi-Aventis Deutschland GmbH, Tides Platform, Industriepark Höchst, Frankfurt65926, Germany
| | - Benjamin Bardiaux
- Institut Pasteur, Department of Structural Biology and Chemistry, Structural Bioinformatics Unit, CNRS UMR 3528, Université Paris Cité, Paris75015, France
- Institut Pasteur, Department of Structural Biology and Chemistry, Bacterial Transmembrane Systems Unit, CNRS UMR 3528, Université Paris Cité, Paris75015, France
| | - Bernd Reif
- Bavarian Nuclear Magnetic Resonance Center at the Department of Biosciences, School of Natural Sciences, Technische Universität München, Garching85747, Germany
- Helmholtz-Zentrum München, Deutsches Forschungszentrum für Gesundheit und Umwelt, Institute of Structural Biology, Neuherberg85764, Germany
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3
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Mukai K, Tanno H, Sugama J, Yanagita T, Kanno E. Differences in clinicopathological characteristics between lipohypertrophy and localized insulin-derived amyloidosis: A scoping review. Chronic Dis Transl Med 2024; 10:22-30. [PMID: 38450303 PMCID: PMC10914015 DOI: 10.1002/cdt3.98] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2023] [Revised: 08/28/2023] [Accepted: 09/21/2023] [Indexed: 03/08/2024] Open
Abstract
Insulin is used as a therapeutic agent in patients with diabetes, and cutaneous lipohypertrophy (LH) and localized insulin-derived amyloidosis (LIDA) are well-known adverse effects associated with insulin injections. The clinical implications, management, assessment methods, and pathological differentiation of LH and LIDA have been recently updated. This review was to update our knowledge of the pathological differentiation, effects of insulin absorption, hypoglycemic events, and recent assessment methods for LH and LIDA. A scoping review was performed according to the Preferred Reporting Items for Systematic Reviews and Meta Analyses extension for Scoping Reviews guidelines. Original studies and case reports in English were also included. PubMed and Scopus databases were searched for keywords to identify papers published up to January 2022. A total of 113 studies were identified through a database search, and 31 were eligible for inclusion in this scoping review. In the 31 studies included in this review, patients with type 2 diabetes had high frequencies of LH and LIDA. LH outcome parameters were assessed using pathological findings and imaging. LIDA is mainly determined by pathological methods, such as hematoxylin and eosin and Congo red staining. Several in vitro and in vivo LIDA models of LIDA have been developed. These results suggest that pathological analysis is required to identify LH and LIDA. It is important to consider LIDA, as it likely influences insulin adsorption and glycemic control. Although several studies have evaluated the LIDA process, little is known about the mechanisms underlying the development of adverse effects associated with insulin injections.
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Affiliation(s)
- Kanae Mukai
- Department of Clinical Nursing, Faculty of Health Sciences, Institute of Medical, Pharmaceutical and Health SciencesKanazawa UniversityKanazawaJapan
| | - Hiromasa Tanno
- Department of Translational Science for NursingTohoku University Graduate School of MedicineSendaiJapan
| | - Junko Sugama
- Research Center for Implementation Nursing Science Initiative, School of Health SciencesFujita Health UniversityToyoakeJapan
| | - Toshihiko Yanagita
- Department of Clinical Pharmacology, School of NursingUniversity of MiyazakiMiyazakiJapan
| | - Emi Kanno
- Department of Translational Science for NursingTohoku University Graduate School of MedicineSendaiJapan
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4
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Hoover Z, Lynn M, Zhaliazka K, Holman AP, Dou T, Kurouski D. Long-Chain Polyunsaturated Fatty Acids Accelerate the Rate of Insulin Aggregation and Enhance Toxicity of Insulin Aggregates. ACS Chem Neurosci 2024; 15:147-154. [PMID: 38127718 PMCID: PMC10862472 DOI: 10.1021/acschemneuro.3c00583] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2023] [Revised: 12/05/2023] [Accepted: 12/06/2023] [Indexed: 12/23/2023] Open
Abstract
Long-chain polyunsaturated fatty acids (LCPUFAs) are essential components of a human diet. These molecules are critically important for cognitive attention and memory, mood states, coronary circulation, and cirrhosis. However, recently reported findings demonstrated that docosahexaenoic (DHA) and arachidonic acids (ARA), ω-3 and ω-6 LCPUFAs, accelerated the aggregation rates of insulin and α-synuclein, proteins that are directly linked to diabetes type 2 and Parkinson's disease, respectively. Furthermore, both DHA and ARA uniquely altered the structure and toxicity of the corresponding protein aggregates. Our objective is to ascertain whether other LCPUFAs, alongside long-chain unsaturated fatty acid (LCUFA) proteins, exhibit similar effects on amyloidogenic proteins. To explore this matter, we investigated the effect of 10 different LCPUFAs and LCUFAs on the rate of insulin aggregation. We found that all of the analyzed fatty acids strongly accelerated insulin aggregation. Moreover, we found that protein aggregates that were formed in the presence of these fatty acids exerted significantly higher cell toxicity compared with insulin fibrils grown in the lipid-free environment. These findings show that interactions between amyloid-associated proteins and LCPUFAs can be the underlying molecular cause of neurodegenerative diseases.
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Affiliation(s)
- Zachary Hoover
- Department
of Biochemistry and Biophysics, Texas A&M
University, College
Station, Texas 77843, United States
| | - Michael Lynn
- Department
of Biochemistry and Biophysics, Texas A&M
University, College
Station, Texas 77843, United States
| | - Kiryl Zhaliazka
- Department
of Biochemistry and Biophysics, Texas A&M
University, College
Station, Texas 77843, United States
| | - Aidan P. Holman
- Department
of Entomology, Texas A&M University, College Station, Texas 77843, United States
| | - Tianyi Dou
- Department
of Biochemistry and Biophysics, Texas A&M
University, College
Station, Texas 77843, United States
| | - Dmitry Kurouski
- Department
of Biochemistry and Biophysics, Texas A&M
University, College
Station, Texas 77843, United States
- Department
of Biomedical Engineering, Texas A&M
University, College Station, Texas 77843, United States
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5
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Horiguchi T, Nakamura S, Matsui Y, Ueda T, Kageura N, Oe M, Seto N, Yanagita T, Sugama J. Effectiveness of management protocol for insulin balls in diabetics: a scoping review. Diabetol Int 2024; 15:41-57. [PMID: 38264219 PMCID: PMC10800326 DOI: 10.1007/s13340-023-00665-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Accepted: 09/22/2023] [Indexed: 01/25/2024]
Abstract
Aim In order to achieve good glycemic control, the prevention and management of insulin balls is important for diabetic patients during insulin therapy. However, insulin balls still occur within the clinical setting. This review evaluated the effectiveness of programs designed to manage insulin balls. Methods A scoping review was conducted based on the Japanese and English literature available from a systematic literature search conducted from January 1964 to March 2022. Three databases were searched: PubMed, CINAHL, and Ichushi-Web. Results A total of 33 articles met the inclusion criteria, which consisted of 3 for prevention management of insulin balls and 30 for management after the occurrence of insulin balls. Findings for prevention management suggested that the insulin injection technique education (avoidance of repeated injections to the same site) and providing knowledge (about insulin balls) prevented the appearance of insulin balls. As for post-occurrence management, insulin injection technique education (avoidance of injections to the insulin ball, avoidance of repeated injections to the same site, and switching the injection site) improved blood glucose control. Hypoglycemia was observed in all studies that included an assessment of hypoglycemia. None of the studies evaluated long-term effects of either preventive or post-occurrence management. Conclusions Providing insulin injection technique education is an effective management protocol for insulin balls. Moreover, education about hypoglycemia is important for patients with insulin balls. Further studies to investigate the long-term effects in the management of insulin balls are needed.
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Affiliation(s)
- Tomomi Horiguchi
- Faculty of Health Sciences, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kanazawa, Japan
| | - Sayuri Nakamura
- Faculty of Nursing, School of Health Sciences, Fujita Health University, Toyoake, Japan
| | - Yuko Matsui
- Faculty of Health Sciences, Department of Nursing, Komatsu University, Komatsu, Japan
| | - Terumi Ueda
- Faculty of Health Sciences, Department of Nursing, Komatsu University, Komatsu, Japan
| | - Naoko Kageura
- Faculty of Nursing, School of Health Sciences, Fujita Health University, Toyoake, Japan
| | - Makoto Oe
- Faculty of Health Sciences, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kanazawa, Japan
| | - Natsuko Seto
- Faculty of Nursing/Graduate School of Nursing, Kansai Medical University, Hirakata, Japan
| | - Toshihiko Yanagita
- School of Nursing, Faculty of Medicine, University of Miyazaki, Miyazaki, Japan
| | - Junko Sugama
- Research Center for Implementation Nursing Science Initiative, Innovation Promotion Division, Research Promotion Headquarters, Fujita Health University, Toyoake, Japan
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6
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Joshi R, Zhaliazka K, Holman AP, Kurouski D. Elucidation of the Role of Lipids in Late Endosomes on the Aggregation of Insulin. ACS Chem Neurosci 2023; 14:3551-3559. [PMID: 37682720 PMCID: PMC10862470 DOI: 10.1021/acschemneuro.3c00475] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2023] [Accepted: 08/25/2023] [Indexed: 09/10/2023] Open
Abstract
Abrupt aggregation of misfolded proteins is the underlying molecular cause of numerous pathologies including diabetes type 2 and injection amyloidosis. Although the exact cause of this process is unclear, a growing body of evidence suggests that protein aggregation is linked to a high protein concentration and the presence of lipid membranes. Endosomes are cell organelles that often possess high concentrations of proteins due to their uptake from the extracellular space. However, the role of endosomes in amyloid pathologies remains unclear. In this study, we used a set of biophysical methods to determine the role of bis(monoacylglycero)phosphate (BMP), the major lipid constituent of late endosomes on the aggregation properties of insulin. We found that both saturated and unsaturated BMP accelerated protein aggregation. However, very little if any changes in the secondary structure of insulin fibrils grown in the presence of BMP were observed. Therefore, no changes in the toxicity of these aggregates compared to the fibrils formed in the lipid-free environment were observed. We also found that the toxicity of insulin oligomers formed in the presence of a 77:23 mol/mol ratio of BMP/PC, which represents the lipid composition of late endosomes, was slightly higher than the toxicity of insulin oligomers formed in the lipid-free environment. However, the toxicity of mature insulin fibrils formed in the presence of BMP/PC mixture was found to be lower or similar to the toxicity of insulin fibrils formed in the lipid-free environment. These results suggest that late endosomes are unlikely to be the source of highly toxic protein aggregates if amyloid proteins aggregate in them.
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Affiliation(s)
- Ritu Joshi
- Department
of Biochemistry and Biophysics, Texas A&M
University, College
Station, Texas 77843, United States
| | - Kiryl Zhaliazka
- Department
of Biochemistry and Biophysics, Texas A&M
University, College
Station, Texas 77843, United States
| | - Aidan P. Holman
- Department
of Biochemistry and Biophysics, Texas A&M
University, College
Station, Texas 77843, United States
- Department
of Entomology, Texas A&M University, College Station, Texas 77843, United States
| | - Dmitry Kurouski
- Department
of Biochemistry and Biophysics, Texas A&M
University, College
Station, Texas 77843, United States
- Department
of Biomedical Engineering, Texas A&M
University, College Station, Texas 77843, United States
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7
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Panda C, Kumar S, Gupta S, Pandey LM. Structural, kinetic, and thermodynamic aspects of insulin aggregation. Phys Chem Chem Phys 2023; 25:24195-24213. [PMID: 37674360 DOI: 10.1039/d3cp03103a] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/08/2023]
Abstract
Given the significance of protein aggregation in proteinopathies and the development of therapeutic protein pharmaceuticals, revamped interest in assessing and modelling the aggregation kinetics has been observed. Quantitative analysis of aggregation includes data of gradual monomeric depletion followed by the formation of subvisible particles. Kinetic and thermodynamic studies are essential to gain key insights into the aggregation process. Despite being the medical marvel in the world of diabetes, insulin suffers from the challenge of aggregation. Physicochemical stresses are experienced by insulin during industrial formulation, storage, delivery, and transport, considerably impacting product quality, efficacy, and effectiveness. The present review briefly describes the pathways, mathematical kinetic models, and thermodynamics of protein misfolding and aggregation. With a specific focus on insulin, further discussions include the structural heterogeneity and modifications of the intermediates incurred during insulin fibrillation. Finally, different model equations to fit the kinetic data of insulin fibrillation are discussed. We believe that this review will shed light on the conditions that induce structural changes in insulin during the lag phase of fibrillation and will motivate scientists to devise strategies to block the initialization of the aggregation cascade. Subsequent abrogation of insulin fibrillation during bioprocessing will ensure stable and globally accessible insulin for efficient management of diabetes.
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Affiliation(s)
- Chinmaya Panda
- Bio-interface & Environmental Engineering Lab Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Assam, 781039, India.
| | - Sachin Kumar
- Viral Immunology Lab Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Assam, 781039, India
| | - Sharad Gupta
- Neurodegeneration and Peptide Engineering Research Lab Biological Engineering Discipline, Indian Institute of Technology Gandhinagar, Gujarat, 382355, India
| | - Lalit M Pandey
- Bio-interface & Environmental Engineering Lab Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Assam, 781039, India.
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8
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Hrudka J, Sticová E, Krbcová M, Schwarzmannová K. Localized Insulin-Derived Amyloidosis in Diabetes Mellitus Type 1 Patient: A Case Report. Diagnostics (Basel) 2023; 13:2415. [PMID: 37510159 PMCID: PMC10378134 DOI: 10.3390/diagnostics13142415] [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: 06/01/2023] [Revised: 07/17/2023] [Accepted: 07/18/2023] [Indexed: 07/30/2023] Open
Abstract
Localized insulin-derived amyloidosis (LIDA) is a rare local complication of subcutaneous insulin application occurring in patients with diabetes type 1 and 2. A 45-year-old woman with an 11-year history of insulin-dependent diabetes mellitus type 1 underwent a mini-abdominoplasty and excision of a long-standing palpable mass in left hypogastric subcutaneous tissue in the area of long-term insulin application. Histopathological examination revealed insulin amyloidosis as a substrate of the mass lesion. Several months after surgery, there was a transient improvement in previously poor diabetes compensation. In addition to local allergic reactions, abscess formation, scarring, lipoatrophy/dystrophy, and lipohypertrophy, LIDA broadens the differential diagnostic spectrum of local insulin injection complications. LIDA has been described as a cause of poor glycemia compensation, probably due to the conversion of soluble insulin into insoluble amyloid fibrils, which prevents insulin from circulating in the blood and regulating glucose blood concentration. Improvement in diabetes compensation has been described in several reports, including our case. LIDA is a rare local complication of subcutaneous insulin application; accurate diagnosis and treatment have clinical consequences. Immunohistochemical or immunofluorescence distinction from other amyloid types is highly recommended.
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Affiliation(s)
- Jan Hrudka
- Department of Pathology, 3rd Faculty of Medicine, Charles University, University Hospital Kralovske Vinohrady, 100 34 Prague, Czech Republic
| | - Eva Sticová
- Department of Pathology, 3rd Faculty of Medicine, Charles University, University Hospital Kralovske Vinohrady, 100 34 Prague, Czech Republic
| | - Magdaléna Krbcová
- Department of Internal Medicine, 3rd Faculty of Medicine, Charles University, University Hospital Kralovske Vinohrady, 100 34 Prague, Czech Republic
| | - Klára Schwarzmannová
- Department of Plastic Surgery, 3rd Faculty of Medicine, Charles University, University Hospital Kralovske Vinohrady, 100 34 Prague, Czech Republic
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9
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Matveyenka M, Zhaliazka K, Kurouski D. Unsaturated fatty acids uniquely alter aggregation rate of α-synuclein and insulin and change the secondary structure and toxicity of amyloid aggregates formed in their presence. FASEB J 2023; 37:e22972. [PMID: 37302013 PMCID: PMC10405295 DOI: 10.1096/fj.202300003r] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2023] [Revised: 03/24/2023] [Accepted: 05/01/2023] [Indexed: 06/12/2023]
Abstract
Docosahexaenoic (DHA) and arachidonic acids (ARA) are omega-3 and omega-6 long-chain polyunsaturated fatty acids (LCPUFAs). These molecules constitute a substantial portion of phospholipids in plasma membranes. Therefore, both DHA and ARA are essential diet components. Once consumed, DHA and ARA can interact with a large variety of biomolecules, including proteins such as insulin and α-synuclein (α-Syn). Under pathological conditions known as injection amyloidosis and Parkinson's disease, these proteins aggregate forming amyloid oligomers and fibrils, toxic species that exert high cell toxicity. In this study, we investigate the role of DHA and ARA in the aggregation properties of α-Syn and insulin. We found that the presence of both DHA and ARA at the equimolar concentrations strongly accelerated aggregation rates of α-Syn and insulin. Furthermore, LCPUFAs substantially altered the secondary structure of protein aggregates, whereas no noticeable changes in the fibril morphology were observed. Nanoscale Infrared analysis of α-Syn and insulin fibrils grown in the presence of both DHA and ARA revealed the presence of LCPUFAs in these aggregates. We also found that such LCPUFAs-rich α-Syn and insulin fibrils exerted significantly greater toxicities compared to the aggregates grown in the LCPUFAs-free environment. These findings show that interactions between amyloid-associated proteins and LCPUFAs can be the underlying molecular cause of neurodegenerative diseases.
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Affiliation(s)
- Mikhail Matveyenka
- Department of Biochemistry and Biophysics, Texas A&M University, College Station, Texas, USA
| | - Kiryl Zhaliazka
- Department of Biochemistry and Biophysics, Texas A&M University, College Station, Texas, USA
| | - Dmitry Kurouski
- Department of Biochemistry and Biophysics, Texas A&M University, College Station, Texas, USA
- Department of Biomedical Engineering, Texas A&M University, College Station, Texas, USA
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10
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Matveyenka M, Rizevsky S, Kurouski D. Elucidation of the Effect of Phospholipid Charge on the Rate of Insulin Aggregation and Structure and Toxicity of Amyloid Fibrils. ACS OMEGA 2023; 8:12379-12386. [PMID: 37033844 PMCID: PMC10077570 DOI: 10.1021/acsomega.3c00159] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/09/2023] [Accepted: 02/14/2023] [Indexed: 06/19/2023]
Abstract
The plasma membrane is a dynamic structure that separates the cell interior from the extracellular space. The fluidity and plasticity of the membrane determines a large number of physiologically important processes ranging from cell division to signal transduction. In turn, membrane fluidity is determined by phospholipids that possess different charges, lengths, and saturation states of fatty acids. A growing body of evidence suggests that phospholipids may play an important role in the aggregation of misfolded proteins, which causes pathological conditions that lead to severe neurodegenerative diseases. In this study, we investigate the role of the charge of the most abundant phospholipids in the plasma membrane: phosphatidylcholine and phosphatidylethanolamine, zwitterions: phosphatidylserine and phosphatidylglycerol, lipids that possess a negative charge, and cardiolipin that has double negative charge on its polar head. Our results show that both zwitterions strongly inhibit insulin aggregation, whereas negatively charged lipids accelerate fibril formation. We also found that in the equimolar presence of zwitterions insulin yields oligomers that exert significantly lower cell toxicity compared to fibrils that were grown in the lipid-free environment. Such aggregates were not formed in the presence of negatively charged lipids. Instead, long insulin fibrils that had strong cell toxicity were grown in the presence of such negatively charged lipids. However, our results showed no correlation between the charge of the lipid and secondary structure and toxicity of the aggregates formed in its presence. These findings show that the secondary structure and toxicity are determined by the chemical structure of the lipid rather than by the charge of the phospholipid polar head.
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Affiliation(s)
- Mikhail Matveyenka
- Department
of Biochemistry and Biophysics, Texas A&M
University, College
Station, Texas 77843, United States
| | - Stanislav Rizevsky
- Department
of Biochemistry and Biophysics, Texas A&M
University, College
Station, Texas 77843, United States
- Department
of Biotechnology, Binh Duong University, Thu Dau Mot 820000, Vietnam
| | - Dmitry Kurouski
- Department
of Biochemistry and Biophysics, Texas A&M
University, College
Station, Texas 77843, United States
- Department
of Biomedical Engineering, Texas A&M
University, College
Station, Texas 77843, United States
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11
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Leite JP, Figueira F, Mendes RF, Almeida Paz FA, Gales L. Metal-Organic Frameworks as Sensors for Human Amyloid Diseases. ACS Sens 2023; 8:1033-1053. [PMID: 36892002 PMCID: PMC10043940 DOI: 10.1021/acssensors.2c02741] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/10/2023]
Abstract
Metal-organic frameworks (MOFs) are versatile compounds with emergent applications in the fabrication of biosensors for amyloid diseases. They hold great potential in biospecimen protection and unprecedented probing capabilities for optical and redox receptors. In this Review, we summarize the main methodologies employed in the fabrication of MOF-based sensors for amyloid diseases and collect all available data in the literature related to their performance (detection range, limit of detection, recovery, time of analysis, among other parameters). Nowadays, MOF sensors have evolved to a point where they can, in some cases, outperform technologies employed in the detection of several amyloid biomarkers (amyloid β peptide, α-synuclein, insulin, procalcitonin, and prolactin) present in biological fluids, such as cerebrospinal fluid and blood. A special emphasis has been given by researchers on Alzheimer's disease monitoring to the detriment of other amyloidosis that are underexploited despite their societal relevance (e.g., Parkinson's disease). There are still important obstacles to overcome in order to selectively detect the various peptide isoforms and soluble amyloid species associated with Alzheimer's disease. Furthermore, MOF contrast agents for imaging peptide soluble oligomers in living humans are also scarce (if not nonexistent), and action in this direction is unquestionably required to clarify the contentious link between the amyloidogenic species and the disease, guiding research toward the most promising therapeutic strategies.
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Affiliation(s)
- José P Leite
- i3S-Instituto de Investigação e Inovação em Saúde, Rua Alfredo Allen, 208, 4200-135 Porto, Portugal
- IBMC-Instituto de Biologia Molecular e Celular Universidade do Porto, Rua Alfredo Allen, 208, 4200-135 Porto, Portugal
- Programa Doutoral em Biologia Molecular e Celular (MCbiology), ICBAS-Instituto de Ciências Biomédicas Abel Salazar, Rua de Jorge Viterbo Ferreira 228, 4050-313 Porto, Portugal
| | - Flávio Figueira
- Department of Chemistry, CICECO-Aveiro Institute of Materials, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Ricardo F Mendes
- Department of Chemistry, CICECO-Aveiro Institute of Materials, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Filipe A Almeida Paz
- Department of Chemistry, CICECO-Aveiro Institute of Materials, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Luís Gales
- i3S-Instituto de Investigação e Inovação em Saúde, Rua Alfredo Allen, 208, 4200-135 Porto, Portugal
- IBMC-Instituto de Biologia Molecular e Celular Universidade do Porto, Rua Alfredo Allen, 208, 4200-135 Porto, Portugal
- ICBAS-Instituto de Ciências Biomédicas Abel Salazar, Rua de Jorge Viterbo Ferreira 228, 4050-313 Porto, Portugal
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12
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Ali SM, Nabi F, Furkan M, Hisamuddin M, Malik S, Zakariya SM, Rizvi I, Uversky VN, Khan RH. Tuning the aggregation behavior of human insulin in the presence of luteolin: An in vitro and in silico approach. Int J Biol Macromol 2023; 237:124219. [PMID: 36990415 DOI: 10.1016/j.ijbiomac.2023.124219] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Revised: 03/19/2023] [Accepted: 03/24/2023] [Indexed: 03/29/2023]
Abstract
Protein misfolding and related formation of amyloid fibrils are associated with several conformational diseases, such as Alzheimer's disease (AD), Parkinson's disease (PD), Huntington's disease (HD), prion diseases, and Diabetes mellitus, Type 2 (DM-II). Several molecules including antibiotics, polyphenols, flavonoids, anthraquinones, and other small molecules are implicated to modulate amyloid assembly. The stabilization of the native forms of the polypeptides and prevention of their misfolding and aggregation are of clinical and biotechnological importance. Among the natural flavonoids, luteolin is of great importance because of its therapeutic role against neuroinflammation. Herein, we have explored the inhibitory effect of luteolin (LUT) on aggregation of a model protein, human insulin (HI). To understand the molecular mechanism of the inhibition of aggregation of HI by LUT, we employed molecular simulation, UV-Vis, fluorescence, and circular dichroism (CD) spectroscopies along with the dynamic light scattering (DLS). The analysis of the tuning of the HI aggregation process by luteolin revealed that interaction of HI with LUT resulted in the decrease in binding of the various fluorescent dyes, such as thioflavin T (ThT) and 8-anilinonaphthalene-1-sulfonic acid (ANS) to this protein. Retention of the native-like CD spectra and resistance to the aggregation in the presence of LUT has confirmed the aggregation inhibitory potential of LUT. The maximum inhibitory effect was found at the protein-to-drug ratio of 1:12, and no significant change was observed beyond this concentration.
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13
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Galzitskaya OV, Grishin SY, Glyakina AV, Dovidchenko NV, Konstantinova AV, Kravchenko SV, Surin AK. The Strategies of Development of New Non-Toxic Inhibitors of Amyloid Formation. Int J Mol Sci 2023; 24:ijms24043781. [PMID: 36835194 PMCID: PMC9964835 DOI: 10.3390/ijms24043781] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Revised: 02/08/2023] [Accepted: 02/10/2023] [Indexed: 02/16/2023] Open
Abstract
In recent years, due to the aging of the population and the development of diagnostic medicine, the number of identified diseases associated with the accumulation of amyloid proteins has increased. Some of these proteins are known to cause a number of degenerative diseases in humans, such as amyloid-beta (Aβ) in Alzheimer's disease (AD), α-synuclein in Parkinson's disease (PD), and insulin and its analogues in insulin-derived amyloidosis. In this regard, it is important to develop strategies for the search and development of effective inhibitors of amyloid formation. Many studies have been carried out aimed at elucidating the mechanisms of amyloid aggregation of proteins and peptides. This review focuses on three amyloidogenic peptides and proteins-Aβ, α-synuclein, and insulin-for which we will consider amyloid fibril formation mechanisms and analyze existing and prospective strategies for the development of effective and non-toxic inhibitors of amyloid formation. The development of non-toxic inhibitors of amyloid will allow them to be used more effectively for the treatment of diseases associated with amyloid.
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Affiliation(s)
- Oxana V. Galzitskaya
- Institute of Protein Research, Russian Academy of Sciences, 142290 Pushchino, Russia
- Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, 142290 Pushchino, Russia
- Correspondence:
| | - Sergei Y. Grishin
- Institute of Protein Research, Russian Academy of Sciences, 142290 Pushchino, Russia
- Institute of Environmental and Agricultural Biology (X-BIO), Tyumen State University, 625003 Tyumen, Russia
| | - Anna V. Glyakina
- Institute of Protein Research, Russian Academy of Sciences, 142290 Pushchino, Russia
- Institute of Mathematical Problems of Biology RAS, The Branch of Keldysh Institute of Applied Mathematics, Russian Academy of Sciences, 142290 Pushchino, Russia
| | - Nikita V. Dovidchenko
- Institute of Protein Research, Russian Academy of Sciences, 142290 Pushchino, Russia
| | - Anastasiia V. Konstantinova
- Institute of Protein Research, Russian Academy of Sciences, 142290 Pushchino, Russia
- Faculty of Biotechnology, Lomonosov Moscow State University, 119991 Moscow, Russia
| | - Sergey V. Kravchenko
- Institute of Environmental and Agricultural Biology (X-BIO), Tyumen State University, 625003 Tyumen, Russia
| | - Alexey K. Surin
- Institute of Protein Research, Russian Academy of Sciences, 142290 Pushchino, Russia
- The Branch of the Institute of Bioorganic Chemistry, Russian Academy of Sciences, 142290 Pushchino, Russia
- State Research Center for Applied Microbiology and Biotechnology, 142279 Obolensk, Russia
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14
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Sun X, Yang C, Liu W, Lu K, Yin H. Charge modifications of graphene oxide enhance the inhibitory effect on insulin amyloid fibrillation based on electrostatic interactions. Int J Biol Macromol 2023; 225:1140-1151. [PMID: 36414075 DOI: 10.1016/j.ijbiomac.2022.11.175] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2022] [Revised: 09/16/2022] [Accepted: 11/17/2022] [Indexed: 11/21/2022]
Abstract
Graphene oxide (GO) is a biocompatible nanomaterial that has an inhibitory effect on insulin amyloid fibrillation. In order to enhance the inhibitory effect of GO and explore the rules of electrostatic interactions on the inhibitory effect, carboxyl group, PEI and PEG were coupled to the GO nanoplatelet surface to prepare inhibitors of different surface electrical properties. The effects of surface electrical properties of inhibitors on insulin fibrillation were investigated. The results showed that GO, carboxyl group modified GO (GO-COOH), PEI modified GO (GO-PEI), and PEG modified GO (GO-PEG) inhibited insulin fibrillation in a dose-dependent manner. Compared with GO, positive charge-modified GO-PEI and negative charge-modified GO-COOH enhanced the inhibitory effect, while uncharged polymer-modified GO-PEG weakened the inhibitory effect. The inhibitory effect of the inhibitors increased with the increase of surface charge density. The difference in inhibitory effect between GO-PEI and GO-COOH was due to the different electrostatic interactions between inhibitors and insulin, and the different inhibition mechanisms. In addition, inhibitors mainly interact with insulin during the nucleation phase to hinder insulin fibrillation. The charge modifications of graphene oxide enhanced the inhibitory effect on insulin fibrillation based on electrostatic interactions, which will provide new thoughts for the development of anti-amyloid fibrillation drugs.
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Affiliation(s)
- Xin Sun
- School of Chemical Engineering and Technology, Hebei University of Technology, No. 8 Guangrong Road, DingziGu, Hongqiao District, Tianjin 300130, China
| | - Chunyan Yang
- School of Chemical Engineering and Technology, Hebei University of Technology, No. 8 Guangrong Road, DingziGu, Hongqiao District, Tianjin 300130, China.
| | - Wei Liu
- School of Chemical Engineering and Technology, Hebei University of Technology, No. 8 Guangrong Road, DingziGu, Hongqiao District, Tianjin 300130, China
| | - Ke Lu
- School of Chemical Engineering and Technology, Hebei University of Technology, No. 8 Guangrong Road, DingziGu, Hongqiao District, Tianjin 300130, China
| | - Hao Yin
- School of Chemical Engineering and Technology, Hebei University of Technology, No. 8 Guangrong Road, DingziGu, Hongqiao District, Tianjin 300130, China
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15
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Nagase T, Iwaya K, Zako T, Kikuchi M, Katsura Y. [Insulin-derived amyloidosis (insulin ball) and skin-related complications of insulin therapy]. Nihon Yakurigaku Zasshi 2023; 158:173-177. [PMID: 36858501 DOI: 10.1254/fpj.22109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/03/2023]
Abstract
Skin-related complications of insulin therapy have long been a problem as a factor interfering with insulin therapy. Among the traditional skin-related complications, lipoatrophy and insulin allergy have decreased markedly with the development of insulin preparations, but lipohypertrophy is still common in insulin-treated patients. Recently, there have been more reports of a skin-related complication called insulin-derived amyloidosis or insulin ball. Insulin-derived amyloidosis is a condition in which injected insulin becomes amyloid protein and is deposited at the injection site. Insulin-derived amyloidosis causes poor glycemic control and increased insulin dose requirements, which are caused by decreased insulin absorption. Lipohypertrophy also decreases insulin absorption, but insulin-derived amyloidosis causes a more significant decrease in insulin absorption and has a greater clinical impact. Therefore, it is important to make a differential diagnosis between insulin-derived amyloidosis and lipohypertrophy, but sometimes it is difficult to distinguish the two and imaging studies are required. The diagnosis of insulin-derived amyloidosis is often difficult in the general practice, and its pathogenesis and prevalence have not been fully clarified. Recently, it has been reported that insulin-derived amyloidosis can be toxic, suggesting an association with minocycline use. The treatment of insulin-derived amyloidosis and lipohypertrophy is to avoid the site of amyloidosis or lipohypertrophy and inject insulin, but the dose of insulin injection should be reduced. Prevention of both insulin-derived amyloidosis and lipohypertrophy is important, and for this purpose, observations of the insulin injection site and instruction on appropriate insulin injection techniques are necessary, and multidisciplinary cooperation is extremely important.
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Affiliation(s)
- Terumasa Nagase
- Noritake Clinic.,Department of Metabolism and Endocrinology, Tokyo Medical University Ibaraki Medical Center
| | - Keiichi Iwaya
- Department of Pathology, SASAKI Institute, Kyoundo Hospital
| | - Tamotsu Zako
- Department of Chemistry and Biology, Graduate School of Science and Engineering, Ehime University
| | - Minoru Kikuchi
- Faculty of Health Sciences, Department of Radiological Sciences, Japan Healthcare University
| | - Yoshiya Katsura
- Department of Metabolism and Endocrinology, Tokyo Medical University Ibaraki Medical Center
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16
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Matveyenka M, Rizevsky S, Pellois JP, Kurouski D. Lipids uniquely alter rates of insulin aggregation and lower toxicity of amyloid aggregates. Biochim Biophys Acta Mol Cell Biol Lipids 2023; 1868:159247. [PMID: 36272517 PMCID: PMC10401553 DOI: 10.1016/j.bbalip.2022.159247] [Citation(s) in RCA: 18] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Revised: 09/14/2022] [Accepted: 10/02/2022] [Indexed: 02/25/2023]
Abstract
Amyloid formation is a hallmark of many medical diseases including diabetes type 2, Alzheimer's and Parkinson diseases. Under these pathological conditions, misfolded proteins self-assemble forming oligomers and fibrils, structurally heterogeneous aggregates that exhibit a large variety of shapes and forms. A growing body of evidence points to drastic changes in the lipid profile in organs affected by amyloidogenic diseases. In this study, we investigated the extent to which individual phospho- and sphingolipids, as well as their mixtures can impact insulin aggregation. Our results show that lipids and their mixtures uniquely alter rates of insulin aggregation simultaneously changing the secondary structure of protein aggregates that are grown in their presence. These structurally different protein-lipid aggregates impact cell viability to different extent while using distinct mechanisms of toxicity. These findings suggest that irreversible changes in lipid profiles of organs may trigger formation of toxic protein species that in turn are responsible for the onset and progression of amyloidogenic diseases.
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Affiliation(s)
- Mikhail Matveyenka
- Department of Biochemistry and Biophysics, Texas A&M University, College Station, TX 77843, United States
| | - Stanislav Rizevsky
- Department of Biochemistry and Biophysics, Texas A&M University, College Station, TX 77843, United States; Department of Biotechnology, Binh Duong University, Thu Dau Mot 820000, Viet Nam
| | - Jean-Philippe Pellois
- Department of Biochemistry and Biophysics, Texas A&M University, College Station, TX 77843, United States
| | - Dmitry Kurouski
- Department of Biochemistry and Biophysics, Texas A&M University, College Station, TX 77843, United States; Department of Biomedical Engineering, Texas A&M University, College Station, TX 77843, United States.
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17
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Lewis BE, Mulka A, Mao L, Sharafieh R, Qiao Y, Kesserwan S, Wu R, Kreutzer D, Klueh U. Insulin Derived Fibrils Induce Cytotoxicity in vitro and Trigger Inflammation in Murine Models. J Diabetes Sci Technol 2023; 17:163-171. [PMID: 34286629 PMCID: PMC9846386 DOI: 10.1177/19322968211033868] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
BACKGROUND Effective exogenous insulin delivery is the cornerstone of insulin dependent diabetes mellitus management. Recent literature indicates that commercial insulin-induced tissue reaction and cellular cytotoxicity may contribute to variability in blood glucose as well as permanent loss of injection or infusion site architecture and function. It is well accepted that insulin formulations are susceptible to mechanical and chemical stresses that lead to insulin fibril formation. This study aims to characterize in vitro and in vivo toxicity, as well as pro-inflammatory activity of insulin fibrils. METHOD In vitro cell culture evaluated cytotoxicity and fibril uptake by macrophages and our modified murine air-pouch model quantified inflammatory activity. The latter employed FLOW cytometry and histopathology to characterize fibril-induced inflammation in vivo, which included fibril uptake by inflammatory phagocytes. RESULTS These studies demonstrated that insulin derived fibrils are cytotoxic to cells in vitro. Furthermore, inflammation is induced in the murine air-pouch model in vivo and in response, macrophages uptake fibrils both in vitro and in vivo. CONCLUSIONS Administration of insulin fibrils can lead to cytotoxicity in macrophages. In vivo data demonstrate insulin fibrils to be pro-inflammatory which over time can lead to cumulative cell/tissue toxicity, inflammation, and destructive wound healing. Long term, these tissue reactions could contribute to loss of insulin injection site architecture and function.
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Affiliation(s)
- Brianne E. Lewis
- Department of Biomedical Engineering,
Integrative Biosciences Center. Wayne State University, Detroit, MI, USA
| | - Adam Mulka
- Department of Biomedical Engineering,
Integrative Biosciences Center. Wayne State University, Detroit, MI, USA
| | - Li Mao
- Department of Biomedical Engineering,
Integrative Biosciences Center. Wayne State University, Detroit, MI, USA
| | - Roshanak Sharafieh
- Department of Surgery, School of Medicine.
University of Connecticut, Farmington, CT, USA
| | - Yi Qiao
- Department of Surgery, School of Medicine.
University of Connecticut, Farmington, CT, USA
| | - Shereen Kesserwan
- Department of Biomedical Engineering,
Integrative Biosciences Center. Wayne State University, Detroit, MI, USA
| | - Rong Wu
- Department of Surgery, School of Medicine.
University of Connecticut, Farmington, CT, USA
| | - Don Kreutzer
- Department of Surgery, School of Medicine.
University of Connecticut, Farmington, CT, USA
| | - Ulrike Klueh
- Department of Biomedical Engineering,
Integrative Biosciences Center. Wayne State University, Detroit, MI, USA
- Ulrike Klueh, PhD, Department of Biomedical
Engineering, Integrative Biosciences Center, Wayne State University, 6135 Woodward Ave,
Detroit, MI 48202, USA.
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18
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Channuwong P, Salae K, Chongruchiroj S, Cheng H, Suantawee T, Thilavech T, Adisakwattana S. Dietary anthocyanins inhibit insulin fibril formation and cytotoxicity in 3T3-L1 preadipocytes. Int J Biol Macromol 2022; 223:1578-1585. [PMID: 36375667 DOI: 10.1016/j.ijbiomac.2022.11.077] [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: 09/14/2022] [Revised: 11/02/2022] [Accepted: 11/08/2022] [Indexed: 11/13/2022]
Abstract
Insulin fibril formation decreases the effectiveness of insulin therapy and causes amyloidosis in diabetes. Studies suggest that phytochemicals are capable of inhibiting fibril formation. Herein, we investigated the inhibitory effects of anthocyanins, including cyanidin, cyanidin-3-glucoside (C3G), cyanidin-3-rutinoside (C3R), malvidin, and malvidin-3-glucoside (M3G) on fibril formation. Our results revealed that anthocyanins (50-200 μM) significantly reduced the formation of insulin fibrils by increasing lag times and decreasing ThT fluorescence at the plateau phase. These findings were confirmed by TEM images, which showed reduced fibril length and number. Furthermore, FTIR analysis indicated that anthocyanins reduced the secondary structure transition of insulin from α-helix to β-sheet. Anthocyanins interacted with monomeric insulin (residues B8-B30) via H-bonds, van der Waals, and hydrophobic interactions, covering the fibril-prone segments of insulin (residues B12-B17). Based on the structure-activity analysis, the presence of glycosides and hydroxyl groups on phenyl rings increased intermolecular interaction, mediating the inhibitory effect of anthocyanins on fibril formation in the order of malvidin < cyanidin < M3G < C3G < C3R. Moreover, anthocyanins formed H-bonds with preformed insulin fibrils, except for malvidin. In preadipocytes, C3R, C3G, and cyanidin attenuated insulin fibril-induced cytotoxicity. In conclusion, anthocyanins are effective inhibitors of insulin fibril formation and cytotoxicity.
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Affiliation(s)
- Pilailak Channuwong
- Phytochemical and Functional Food Research Unit for Clinical Nutrition, Department of Nutrition and Dietetics, Faculty of Allied Health Science, Chulalongkorn University, Bangkok 10330, Thailand
| | - Kunthira Salae
- The Halal Science Center, Chulalongkorn University, Bangkok 10330, Thailand
| | - Sumet Chongruchiroj
- Department of Microbiology, Faculty of Pharmacy, Mahidol University, Bangkok 10440, Thailand
| | - Henrique Cheng
- Department of Physiological Sciences, College of Veterinary Medicine, Oklahoma State University, Stillwater, OK 74078, USA
| | - Tanyawan Suantawee
- Phytochemical and Functional Food Research Unit for Clinical Nutrition, Department of Nutrition and Dietetics, Faculty of Allied Health Science, Chulalongkorn University, Bangkok 10330, Thailand
| | - Thavaree Thilavech
- Department of Food Chemistry, Faculty of Pharmacy, Mahidol University, Bangkok 10440, Thailand
| | - Sirichai Adisakwattana
- Phytochemical and Functional Food Research Unit for Clinical Nutrition, Department of Nutrition and Dietetics, Faculty of Allied Health Science, Chulalongkorn University, Bangkok 10330, Thailand.
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19
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The Benign Side of the Abdominal Wall: A Pictorial Review of Non-Neoplastic Diseases. Diagnostics (Basel) 2022; 12:diagnostics12123211. [PMID: 36553218 PMCID: PMC9778078 DOI: 10.3390/diagnostics12123211] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2022] [Revised: 12/12/2022] [Accepted: 12/13/2022] [Indexed: 12/23/2022] Open
Abstract
The abdominal wall is the location of a wide spectrum of pathological conditions, from benign to malignant ones. Imaging is often recommended for the evaluation of known palpable abdominal masses. However, abdominal wall pathologies are often incidentally discovered and represent a clinical and diagnostic challenge. Knowledge of the possible etiologies and complications, combined with clinical history and laboratory findings, is crucial for the correct management of these conditions. Specific imaging clues can help the radiologist narrow the differential diagnosis and distinguish between malignant and benign processes. In this pictorial review, we will focus on the non-neoplastic benign masses and processes that can be encountered on the abdominal wall on cross-sectional imaging, with a particular focus on their management. Distinctive sonographic imaging clues, compared with computed tomography (CT) and magnetic resonance (MR) findings will be highlighted, together with clinical and practical tips for reaching the diagnosis and guiding patient management, to provide a complete diagnostic guide for the radiologist.
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20
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Qafary M, Rashno F, Khajeh K, Khaledi M, Moosavi-Movahedi AA. Insulin fibrillation: Strategies for inhibition. PROGRESS IN BIOPHYSICS AND MOLECULAR BIOLOGY 2022; 175:49-62. [DOI: 10.1016/j.pbiomolbio.2022.09.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/13/2022] [Revised: 08/17/2022] [Accepted: 09/08/2022] [Indexed: 04/07/2023]
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21
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Matveyenka M, Rizevsky S, Kurouski D. Length and Unsaturation of Fatty Acids of Phosphatidic Acid Determines the Aggregation Rate of Insulin and Modifies the Structure and Toxicity of Insulin Aggregates. ACS Chem Neurosci 2022; 13:2483-2489. [PMID: 35930674 DOI: 10.1021/acschemneuro.2c00330] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
Phosphatidic acid (PA) is a unique plasma membrane lipid that contains fatty acids (FAs) with different lengths and degrees of unsaturation. Under physiological conditions, PA acts as a second messenger regulating a wide variety of cellular processes. At the same time, the role of PA under pathological conditions, which are caused by an abrupt aggregation of amyloid proteins, remains unclear. In this study, we investigated the effect of PA with different lengths and unsaturation of FAs on insulin aggregation. We found that PA with C16:0 FAs strongly inhibited insulin aggregation, whereas PA with C18:0 FAs accelerated it. Furthermore, PA with unsaturated (C18:1) FAs made the insulin form extremely long and thick fibrils that were not observed for PAs with saturated FAs. We also found that the presence of PA with C16:0 FAs resulted in the formation of aggregates that exerted significantly lower cell toxicity compared to the aggregates formed in the presence of PAs with C18:0 and C18:1 FAs. These results suggest that PA may play a key role in neurodegeneration.
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Affiliation(s)
- Mikhail Matveyenka
- Department of Biochemistry and Biophysics, Texas A&M University, College Station, Texas 77843, United States
| | - Stanislav Rizevsky
- Department of Biochemistry and Biophysics, Texas A&M University, College Station, Texas 77843, United States.,Department of Biotechnology, Binh Duong University, Thu Dau Mot 820000, Vietnam
| | - Dmitry Kurouski
- Department of Biochemistry and Biophysics, Texas A&M University, College Station, Texas 77843, United States.,Department of Biomedical Engineering, Texas A&M University, College Station, Texas 77843, United States
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22
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Das A, Shah M, Saraogi I. Molecular Aspects of Insulin Aggregation and Various Therapeutic Interventions. ACS BIO & MED CHEM AU 2022; 2:205-221. [PMID: 37101572 PMCID: PMC10114644 DOI: 10.1021/acsbiomedchemau.1c00054] [Citation(s) in RCA: 30] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 04/28/2023]
Abstract
Protein aggregation leading to the formation of amyloid fibrils has various adverse effects on human health ranging from fatigue and numbness to organ failure and death in extreme cases. Insulin, a peptide hormone commonly used to treat diabetes, undergoes aggregation at the site of repeated injections in diabetic patients as well as during its industrial production and transport. The reduced bioavailability of insulin due to aggregation hinders the proper control of glucose levels in diabetic patients. Thus, it is necessary to develop rational approaches for inhibiting insulin aggregation, which in turn requires a detailed understanding of the mechanism of fibrillation. Given the relative simplicity of insulin and ease of access, insulin has also served as a model system for studying amyloids. Approaches to inhibit insulin aggregation have included the use of natural molecules, synthetic peptides or small molecules, and bacterial chaperone machinery. This review focuses on insulin aggregation with an emphasis on its mechanism, the structural features of insulin fibrils, and the reported inhibitors that act at different stages in the aggregation pathway. We discuss molecules that can serve as leads for improved inhibitors for use in commercial insulin formulations. We also discuss the aggregation propensity of fast- and slow-acting insulin biosimilars, commonly administered to diabetic patients. The development of better insulin aggregation inhibitors and insights into their mechanism of action will not only aid diabetic therapies, but also enhance our knowledge of protein amyloidosis.
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Affiliation(s)
- Anirban Das
- Department
of Chemistry and Department of Biological Sciences, Indian
Institute of Science Education and Research
Bhopal, Bhopal Bypass Road, Bhauri, Bhopal 462066, Madhya Pradesh, India
| | - Mosami Shah
- Department
of Chemistry and Department of Biological Sciences, Indian
Institute of Science Education and Research
Bhopal, Bhopal Bypass Road, Bhauri, Bhopal 462066, Madhya Pradesh, India
| | - Ishu Saraogi
- Department
of Chemistry and Department of Biological Sciences, Indian
Institute of Science Education and Research
Bhopal, Bhopal Bypass Road, Bhauri, Bhopal 462066, Madhya Pradesh, India
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23
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Matveyenka M, Rizevsky S, Kurouski D. Unsaturation in the Fatty Acids of Phospholipids Drastically Alters the Structure and Toxicity of Insulin Aggregates Grown in Their Presence. J Phys Chem Lett 2022; 13:4563-4569. [PMID: 35580189 PMCID: PMC9170185 DOI: 10.1021/acs.jpclett.2c00559] [Citation(s) in RCA: 29] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
Lipid bilayers play an important role in the pathological assembly of amyloidogenic proteins and peptides. This assembly yields oligomers and fibrils, which are highly toxic protein aggregates. In this study, we investigated the role of saturation in fatty acids of two phospholipids that are present in cell membranes. We found that unsaturated cardiolipin (CL) drastically shortened the lag phase of insulin aggregation. Furthermore, structurally and morphologically different aggregates were formed in the presence of unsaturated CL vs saturated CL. These aggregates exerted drastically different cell toxicity. Both saturated and unsaturated phosphatidylcholine (PC) were able to inhibit insulin aggregation equally efficiently. Similar to CL, structurally different aggregates were formed in the presence of saturated and unsaturated PC. These aggregates exerted different cell toxicities. These results show that unsaturated phospholipids catalyze the formation of more toxic amyloid aggregates comparing to those formed in the presence of saturated lipids.
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Affiliation(s)
| | - Stanislav Rizevsky
- Department of Biotechnology, Binh Duong University, Thu Dau Mot 820000, Vietnam
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24
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Mori W, Kawakami R, Niko Y, Haruta T, Imamura T, Shiraki K, Zako T. Differences in interaction lead to the formation of different types of insulin amyloid. Sci Rep 2022; 12:8556. [PMID: 35595809 PMCID: PMC9123177 DOI: 10.1038/s41598-022-12212-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Accepted: 05/04/2022] [Indexed: 11/25/2022] Open
Abstract
Insulin balls, localized insulin amyloids formed at the site of repeated insulin injections in patients with diabetes, cause poor glycemic control and cytotoxicity. Our previous study has shown that insulin forms two types of amyloids; toxic amyloid formed from the intact insulin ((i)-amyloid) and less-toxic amyloid formed in the presence of the reducing reagent TCEP ((r)-amyloid), suggesting insulin amyloid polymorphism. However, the differences in the formation mechanism and cytotoxicity expression are still unclear. Herein, we demonstrate that the liquid droplets, which are stabilized by electrostatic interactions, appear only in the process of toxic (i)-amyloid formation, but not in the less-toxic (r)-amyloid formation process. The effect of various additives such as arginine, 1,6-hexanediol, and salts on amyloid formation was also examined to investigate interactions that are important for amyloid formation. Our results indicate that the maturation processes of these two amyloids were significantly different, whereas the nucleation by hydrophobic interactions was similar. These results also suggest the difference in the formation mechanism of two different insulin amyloids is attributed to the difference in the intermolecular interactions and could be correlated with the cytotoxicity.
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Affiliation(s)
- Wakako Mori
- Department of Chemistry and Biology, Graduate School of Science and Engineering, Ehime University, Ehime, Japan
| | - Ryosuke Kawakami
- Department of Molecular Medicine for Pathogenesis, Graduate School of Medicine, Ehime University, Ehime, Japan
| | - Yosuke Niko
- Research and Education Faculty, Multidisciplinary Science Cluster, Interdisciplinary Science Unit, Kochi University, Kochi, Japan
| | | | - Takeshi Imamura
- Department of Molecular Medicine for Pathogenesis, Graduate School of Medicine, Ehime University, Ehime, Japan
| | - Kentaro Shiraki
- Faculty of Pure and Applied Sciences, University of Tsukuba, Ibaraki, Japan
| | - Tamotsu Zako
- Department of Chemistry and Biology, Graduate School of Science and Engineering, Ehime University, Ehime, Japan.
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25
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Matveyenka M, Rizevsky S, Kurouski D. The Degree of Unsaturation of Fatty Acids in Phosphatidylserine Alters the Rate of Insulin Aggregation and the Structure and Toxicity of Amyloid Aggregates. FEBS Lett 2022; 596:1424-1433. [PMID: 35510803 DOI: 10.1002/1873-3468.14369] [Citation(s) in RCA: 29] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2022] [Revised: 04/28/2022] [Accepted: 04/29/2022] [Indexed: 11/10/2022]
Abstract
Phosphatidylserine (PS) in the plasma membrane plays an important role in cell signaling and apoptosis. Cell degeneration is also linked to numerous amyloid diseases, pathologies that are associated with aggregation of misfolded proteins. In this work, we examine the effect of both saturated PS (DMPS) and unsaturated PS (DOPS and POPS) on the aggregation properties of insulin, as well as the structure and toxicity of insulin aggregates formed in the presence of these phospholipids. We found that the degree of unsaturation of fatty acids in PS alters the rate of insulin aggregation. We also found that toxicity of insulin-DMPS aggregates is significantly lower than the toxicity of DOPS- and POPS-insulin fibrils, whereas all these lipid-containing aggregates exert lower cell toxicity than insulin fibrils grown in a lipid-free environment.
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Affiliation(s)
- Mikhail Matveyenka
- Department of Biochemistry and Biophysics, Texas A&M University, College Station, Texas, 77843, United States
| | - Stanislav Rizevsky
- Department of Biochemistry and Biophysics, Texas A&M University, College Station, Texas, 77843, United States.,Department of Biotechnology, Binh Duong University, Thu Dau Mot, 820000, Vietnam
| | - Dmitry Kurouski
- Department of Biochemistry and Biophysics, Texas A&M University, College Station, Texas, 77843, United States.,Department of Biomedical Engineering, Texas A&M University, College Station, Texas, 77843, United States
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26
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Rizevsky S, Matveyenka M, Kurouski D. Nanoscale Structural Analysis of a Lipid-Driven Aggregation of Insulin. J Phys Chem Lett 2022; 13:2467-2473. [PMID: 35266717 PMCID: PMC9169669 DOI: 10.1021/acs.jpclett.1c04012] [Citation(s) in RCA: 28] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Abrupt aggregation of misfolded proteins is a hallmark of a large number of severe pathologies, including diabetes types 1 and 2, Alzheimer, and Parkinson diseases. A growing body of evidence suggests that lipids can uniquely change rates of amyloid-associated proteins as well as modify the structure of formed oligomers and fibrils. In this study, we utilize atomic force microscopy infrared (AFM-IR) spectroscopy, also known as nano-IR spectroscopy, to examine the structure of individual insulin oligomers, protofilaments, and fibrils grown in the presence of phospholipids. Our findings show that AFM-IR spectra of insulin oligomers have strong signals of C-H and PO2- vibrations, which points on the presence of lipids in the oligomer structure. Furthermore, substantial shifts in lipid vibrations in AFM-IR spectra of the oligomers relative to the corresponding bands of pure lipids have been observed. This points on strong interactions between a lipid and a protein that are developed at the stage of the oligomer formation.
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Affiliation(s)
- Stanislav Rizevsky
- Department of Biochemistry and Biophysics, Texas A&M University, College Station, Texas 77843, United States
- Department of Biotechnology, Binh Duong University, Thu Dau Mot 820000, Vietnam
| | - Mikhail Matveyenka
- Department of Biochemistry and Biophysics, Texas A&M University, College Station, Texas 77843, United States
| | - Dmitry Kurouski
- Department of Biochemistry and Biophysics, Texas A&M University, College Station, Texas 77843, United States
- Department of Biomedical Engineering, Texas A&M University, College Station, Texas 77843, United States
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27
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Sen S, Ali R, Onkar A, Ganesh S, Verma S. Strategies for interference of insulin fibrillogenesis: challenges and advances. Chembiochem 2022; 23:e202100678. [PMID: 35025120 DOI: 10.1002/cbic.202100678] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2021] [Revised: 01/11/2022] [Indexed: 11/10/2022]
Abstract
The discovery of insulin came up with very high hopes for diabetic patients. In the year 2021, the world celebrated the 100 th anniversary of the discovery of this vital hormone. However, external use of insulin is highly affected by its aggregating tendency that occurs during its manufacturing, transportation, and improper handling which ultimately leads its pharmaceutically and biologically ineffective form. In this review, we aim to discuss the various approaches used for decelerating insulin aggregation which results in the enhancement of its overall structural stability and usage. The approaches that are discussed are broadly classified as either a measure through excipient additions or by intrinsic modifications in the insulin native structure.
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Affiliation(s)
- Shantanu Sen
- Indian Institute of Technology Kanpur, Chemistry, INDIA
| | - Rafat Ali
- Indian Institute of Technology Kanpur, Chemistry, Room No 131 Lab No2, CESE department IIT Kanpur, 208016, Kanpur, INDIA
| | - Akanksha Onkar
- Indian Institute of Technology Kanpur, Biological Sciences and Bioengineering, INDIA
| | - Subramaniam Ganesh
- Indian Institute of Technology Kanpur, Biological Sciences and Bioengineering, INDIA
| | - Sandeep Verma
- Indian Institute of Technology-Kanpur, Department of Chemistry, IIT-Kanpur, 208016, Kanpur, INDIA
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28
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Liang Y, Ueno M, Zha S, Okimura T, Jiang Z, Yamaguchi K, Hatakeyama T, Oda T. Sulfated polysaccharide ascophyllan prevents amyloid fibril formation of human insulin and inhibits amyloid-induced hemolysis and cytotoxicity in PC12 cells. Biosci Biotechnol Biochem 2021; 85:2281-2291. [PMID: 34519773 DOI: 10.1093/bbb/zbab163] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2021] [Accepted: 09/06/2021] [Indexed: 01/07/2023]
Abstract
We found that ascophyllan significantly inhibited the fibrillation of human insulin and was the most effective among the sulfated polysaccharides tested. Gel-filtration analysis suggested that ascophyllan was capable of forming a complex with insulin through a weak interaction. Secondary structure transition from native α-helix to β-sheet predominant structure of insulin under the fibrillation conditions was suppressed in the presence of ascophyllan. Interestingly, ascophyllan attenuated insulin fibril-induced hemolysis of human erythrocytes. Moreover, ascophyllan attenuated insulin amyloid-induced cytotoxicity on rat pheochromocytoma PC12 cells and reduced the level of intracellular reactive oxygen species. This is the first report indicating that a sulfated polysaccharide, ascophyllan, can suppress the insulin amyloid fibril formation and inhibit the fibril-induced detrimental bioactivities.
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Affiliation(s)
- Yan Liang
- Graduate School of Fisheries Science and Environmental Studies, Nagasaki University, Bunkyo-machi, Nagasaki, Japan
| | - Mikinori Ueno
- Graduate School of Fisheries Science and Environmental Studies, Nagasaki University, Bunkyo-machi, Nagasaki, Japan
| | - Shijiao Zha
- School of Earth and Environment, Anhui University of Science and Technology, Huainan, China
| | - Takasi Okimura
- Research and Development Division, Hayashikane Sangyo Co., Ltd., Shimonoseki, Yamaguchi, Japan
| | - Zedong Jiang
- College of Food and Biological Engineering, Jimei University, Xiamen, Fujian, China
- Fujian Provincial Key Laboratory of Food Microbiology and Enzyme Engineering, Xiamen, China
- Research Center of Food Biotechnology of Xiamen City, Xiamen, China
- Key Laboratory of Systemic Utilization and In-depth Processing of Economic Seaweed, Xiamen Southern Ocean Technology Center of China, Xiamen, China
| | - Kenichi Yamaguchi
- Graduate School of Fisheries Science and Environmental Studies, Nagasaki University, Bunkyo-machi, Nagasaki, Japan
| | - Tomomitsu Hatakeyama
- Biomolecular Chemistry Laboratory, Graduate School of Engineering, Nagasaki University, Bunkyo-machi, Nagasaki, Japan
- Organization for Marine Science and Technology, Nagasaki University, Bunkyo-machi, Nagasaki, Japan
| | - Tatsuya Oda
- Graduate School of Fisheries Science and Environmental Studies, Nagasaki University, Bunkyo-machi, Nagasaki, Japan
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29
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Amyloidogenicity of peptides targeting diabetes and obesity. Colloids Surf B Biointerfaces 2021; 209:112157. [PMID: 34715595 DOI: 10.1016/j.colsurfb.2021.112157] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Revised: 09/20/2021] [Accepted: 10/09/2021] [Indexed: 12/15/2022]
Abstract
Since the discovery of insulin, a century ago, the repertoire of therapeutic polypeptides targeting diabetes - and now also obesity - have increased substantially. The focus on quality has shifted from impure and unstable preparations of animal insulin to highly pure, homologous recombinant insulin, along with other peptide-based hormones and analogs such as amylin analogs (pramlintide, davalintide, cagrilintide), glucagon and glucagon-like peptide-1 receptor agonists (GLP-1, liraglutide, exenatide, semaglutide). Proper formulation, storage, manipulation and usage by professionals and patients are required in order to avoid agglomeration into high molecular weight products (HMWP), either amorphous or amyloid, which could result in potential loss of biological activity and short- or long-term immune reaction and silent inactivation. In this narrative review, we present perspective of the aggregation of therapeutic polypeptides used in diabetes and other metabolic diseases, covering the nature and mechanisms, analytical techniques, physical and chemical stability, strategies aimed to hamper the formation of HMWP, and perspectives on future biopharmaceutical developments.
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30
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Kunitomi R, Pradipta AR, Kawabe H, Lobsiger N, Tanaka K, Zako T. Inhibition of amyloid formation of amyloid β (1-42), amylin and insulin by 1,5-diazacyclooctanes, a spermine-acrolein conjugate. Bioorg Med Chem 2021; 46:116391. [PMID: 34488020 DOI: 10.1016/j.bmc.2021.116391] [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: 04/28/2021] [Revised: 08/13/2021] [Accepted: 08/25/2021] [Indexed: 10/20/2022]
Abstract
Amyloid aggregates of proteins are known to be involved in various diseases such as Alzheimer's disease (AD). It is therefore speculated that the inhibition of amyloid formation can play an important role in the prevention of various diseases involving amyloids. Recently, we have found that acrolein reacts with polyamines, such as spermine, and produces 1,5-diazacyclooctane, such as cyclic spermine (cSPM). cSPM could suppress the aggregation of amyloid β 1-40 (Aβ40), one of the causative proteins of AD. This result suggests the potential inhibitory effect of cSPM against Aβ 1-42 (Aβ42) and other amyloid protein aggregation which are the main pathological features of AD and other diseases. However, the effect on the aggregation of such proteins remains unclear. In this study, the effect of cSPM on the amyloid formation of Aβ42, amylin, and insulin was investigated. These three amyloidogenic proteins forming amyloids under physiological conditions (pH 7.4 and 37℃) served as model and are thought to be the causative proteins of AD, type 2 diabetes, and insulin-derived amyloidosis, respectively. Our results indicate that cSPM can suppress the amyloid aggregation of these proteins and reduce cytotoxicity. This study contributes to a better understanding of means to potentially counteract diseases by the means of polyamine and acrolein.
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Affiliation(s)
- Risako Kunitomi
- Department of Chemistry and Biology, Graduate School of Science and Engineering, Ehime University, 2-5 Bunkyo, Matsuyama, Ehime 790-8577, Japan
| | - Ambara R Pradipta
- Department of Chemical Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro, Tokyo 152-8552, Japan; Biofunctional Synthetic Chemistry Laboratory, RIKEN Cluster for Pioneering Research, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Haruka Kawabe
- Department of Chemistry and Biology, Graduate School of Science and Engineering, Ehime University, 2-5 Bunkyo, Matsuyama, Ehime 790-8577, Japan
| | - Nadine Lobsiger
- Department of Chemistry and Biology, Graduate School of Science and Engineering, Ehime University, 2-5 Bunkyo, Matsuyama, Ehime 790-8577, Japan; Institute for Chemical and Bioengineering, ETH Zürich, Wolfgang-Pauli-Strasse 10, CH-8093 Zürich, Switzerland
| | - Katsunori Tanaka
- Department of Chemical Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro, Tokyo 152-8552, Japan; Biofunctional Synthetic Chemistry Laboratory, RIKEN Cluster for Pioneering Research, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan; Biofunctional Chemistry Laboratory, Alexander Butlerov Institute of Chemistry, Kazan Federal University, 18 Kremlyovskaya Street, 420008 Kazan, Russian Federation
| | - Tamotsu Zako
- Department of Chemistry and Biology, Graduate School of Science and Engineering, Ehime University, 2-5 Bunkyo, Matsuyama, Ehime 790-8577, Japan.
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31
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Abstract
A rapid-acting insulin lispro and long-acting insulin glargine are commonly used for the treatment of diabetes. Clinical cases have described the formation of injectable amyloidosis with these insulin analogues, but their amyloid core regions of fibrils were unknown. To reveal these regions, we have analysed the hydrolyzates of insulin fibrils and its analogues using high-performance liquid chromatography and mass spectrometry methods and found that insulin and its analogues have almost identical amyloid core regions that intersect with the predicted amyloidogenic regions. The obtained results can be used to create new insulin analogues with a low ability to form fibrils. Abbreviations a.a., amino acid residues; HPLC-MS, high-performance liquid chromatography/mass spectrometry; m/z, mass-to-charge ratio; TEM, transmission electron microscopy.
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Affiliation(s)
- Alexey K Surin
- Institute of Protein Research, Russian Academy of Sciences , Pushchino, Russian Federation.,State Research Center for Applied Microbiology and Biotechnology , Obolensk, Russian Federation.,The Branch of the Institute of Bioorganic Chemistry, Russian Academy of Sciences , Pushchino, Russian Federation
| | - Sergei Yu Grishin
- Institute of Protein Research, Russian Academy of Sciences , Pushchino, Russian Federation
| | - Oxana V Galzitskaya
- Institute of Protein Research, Russian Academy of Sciences , Pushchino, Russian Federation.,Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences , Pushchino, Russian Federation
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32
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Aghighi M, Linos K. Insulin-induced amyloidosis in a diabetic patient. J Cutan Pathol 2021; 49:845-849. [PMID: 34263925 DOI: 10.1111/cup.14087] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2021] [Revised: 05/27/2021] [Accepted: 06/08/2021] [Indexed: 11/30/2022]
Affiliation(s)
- Maryam Aghighi
- Department of Pathology, Rutgers Health-St. Barnabas Medical Center, Livingston, New Jersey, USA
| | - Konstantinos Linos
- Department of Pathology and Laboratory Medicine, Dartmouth Hitchcock Medical Center, Lebanon, New Hampshire, USA.,Geisel School of Medicine at Dartmouth, Hanover, New Hampshire, USA
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33
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Mulka A, Lewis BE, Mao L, Sharafieh R, Kesserwan S, Wu R, Kreutzer DL, Klueh U. Phenolic Preservative Removal from Commercial Insulin Formulations Reduces Tissue Inflammation while Maintaining Euglycemia. ACS Pharmacol Transl Sci 2021; 4:1161-1174. [PMID: 34151206 DOI: 10.1021/acsptsci.1c00047] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Indexed: 11/28/2022]
Abstract
Background: Exogenous insulin therapy requires stabilization of the insulin molecule, which is achieved through the use of excipients (e.g., phenolic preservatives (PP)) that provide protein stability, sterility and prolong insulin shelf life. However, our laboratory recently reported that PP, (e.g., m-creosol and phenol) are also cytotoxic, inducing inflammation and fibrosis. Optimizing PP levels through filtration would balance the need for insulin preservation with PP-induced inflammation. Method: Zeolite Y (Z-Y), a size-exclusion-based resin, was employed to remove PP from commercial insulin formulations (Humalog) before infusion. Results: PP removal significantly decreased cell toxicity in vitro and inflammation in vivo. Infusion site histological analysis after a 3 day study demonstrated that leukocyte accumulation increased with nonfiltered preparations but decreased after filtration. Additional studies demonstrated that a Z-Y fabricated filter effectively removed excess PP such that the filtered insulin solution achieved equivalent glycemic control in diabetic mice when compared to nonfiltered insulin. Conclusion: This approach represents the proof of concept that using Z-Y for in-line PP removal assists in lowering inflammation at the site of insulin infusion and thus could lead to extending the functional lifespan of insulin infusion sets in vivo.
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Affiliation(s)
- Adam Mulka
- Department of Biomedical Engineering, Integrative Biosciences Center, Wayne State University, Detroit, Michigan 48202,United States
| | - Brianne E Lewis
- Department of Biomedical Engineering, Integrative Biosciences Center, Wayne State University, Detroit, Michigan 48202,United States
| | - Li Mao
- Department of Biomedical Engineering, Integrative Biosciences Center, Wayne State University, Detroit, Michigan 48202,United States
| | - Roshanak Sharafieh
- Department of Surgery, School of Medicine, University of Connecticut, Farmington, Connecticut 06030-2100, United States
| | - Shereen Kesserwan
- Department of Biomedical Engineering, Integrative Biosciences Center, Wayne State University, Detroit, Michigan 48202,United States
| | - Rong Wu
- Connecticut Convergence Institute, School of Medicine, University of Connecticut, Farmington, Connecticut 06030-6022, United States
| | - Donald L Kreutzer
- Department of Surgery, School of Medicine, University of Connecticut, Farmington, Connecticut 06030-2100, United States
| | - Ulrike Klueh
- Department of Biomedical Engineering, Integrative Biosciences Center, Wayne State University, Detroit, Michigan 48202,United States
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34
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Mori W, Yuzu K, Lobsiger N, Nishioka H, Sato H, Nagase T, Iwaya K, Lindgren M, Zako T. Degradation of insulin amyloid by antibiotic minocycline and formation of toxic intermediates. Sci Rep 2021; 11:6857. [PMID: 33767265 PMCID: PMC7994847 DOI: 10.1038/s41598-021-86001-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Accepted: 03/08/2021] [Indexed: 12/28/2022] Open
Abstract
Insulin balls, localized insulin amyloids formed at subcutaneous insulin-injection sites in patients with diabetes, cause poor glycemic control owing to impairments in insulin absorption. Our previous study has shown that some insulin balls are cytotoxic, but others are not, implying amyloid polymorphism. Interestingly, the patient with toxic insulin balls had been treated with antibiotic minocycline, suggesting a possible relationship between toxicity of insulin balls and minocycline. However, the direct effect of minocycline on the structure and cytotoxicity of the insulin amyloid is still unclear. Herein, we demonstrated that that minocycline at physiological concentrations induced degradation of insulin amyloids formed from human insulin and insulin drug preparations used for diabetes patients. Interestingly, the process involved the initial appearance of the toxic species, which subsequently changed into less-toxic species. It is also shown that the structure of the toxic species was similar to that of sonicated fragments of human insulin amyloids. Our study shed new light on the clarification of the revelation of insulin balls and the development of the insulin analogs for diabetes therapy.
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Affiliation(s)
- Wakako Mori
- Department of Chemistry and Biology, Graduate School of Science and Engineering, Ehime University, Ehime, 790-8577, Japan
| | - Keisuke Yuzu
- Department of Chemistry and Biology, Graduate School of Science and Engineering, Ehime University, Ehime, 790-8577, Japan
| | - Nadine Lobsiger
- Department of Chemistry and Biology, Graduate School of Science and Engineering, Ehime University, Ehime, 790-8577, Japan
- Institute for Chemical and Bioengineering, ETH Zürich, 8093, Zürich, Switzerland
| | - Hideo Nishioka
- Application Management Department, JEOL Ltd, Tokyo, 196-8558, Japan
| | - Hisako Sato
- Department of Chemistry and Biology, Graduate School of Science and Engineering, Ehime University, Ehime, 790-8577, Japan
| | - Terumasa Nagase
- Department of Metabolism and Endocrinology, Tokyo Medical University Ibaraki Medical Center, Ibaraki, 3000395, Japan
| | - Keiichi Iwaya
- Department of Pathology, SASAKI Institute, Kyoundo Hospital, Tokyo, 101-0062, Japan
| | - Mikael Lindgren
- Department of Physics, Faculty of Natural Sciences, Norwegian University of Science and Technology, 7491, Trondheim, Norway
| | - Tamotsu Zako
- Department of Chemistry and Biology, Graduate School of Science and Engineering, Ehime University, Ehime, 790-8577, Japan.
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35
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Nagase T, Iwaya K, Kogure K, Zako T, Misumi Y, Kikuchi M, Matsumoto K, Noritake M, Kawachi Y, Kobayashi M, Ando Y, Katsura Y. Insulin-derived amyloidosis without a palpable mass at the insulin injection site: A report of two cases. J Diabetes Investig 2020; 11:1002-1005. [PMID: 31867887 PMCID: PMC7378411 DOI: 10.1111/jdi.13199] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/21/2019] [Revised: 11/29/2019] [Accepted: 12/15/2019] [Indexed: 11/27/2022] Open
Abstract
To date, almost all case reports of insulin-derived amyloidosis described the presence of a subcutaneous mass that was observable on physical examination. This report presents two cases of insulin-derived amyloidosis without palpable masses at insulin injection sites. In both cases, blood glucose concentrations improved, and the insulin dose could be reduced by an average of 45% after changing the insulin injection sites. The insulin absorption at the site was reduced to at most 40% of that at a normal site in one case. Magnetic resonance imaging and ultrasonography were useful to screen and differentiate insulin-derived amyloidosis without a palpable mass. This report showed that insulin-derived amyloidosis without a palpable mass can be present at the insulin injection site, and has similar clinical effects to insulin-derived amyloidosis with palpable masses.
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Affiliation(s)
- Terumasa Nagase
- Department of Metabolism and EndocrinologyTokyo Medical University Ibaraki Medical CenterIbarakiJapan
| | - Keiichi Iwaya
- Department of PathologySASAKI InstituteKyoundo HospitalTokyoJapan
| | - Koichiro Kogure
- Department of Metabolism and EndocrinologyTokyo Medical University Ibaraki Medical CenterIbarakiJapan
| | - Tamotsu Zako
- Department of Chemistry and BiologyGraduate School of Science and EngineeringEhime UniversityEhimeJapan
| | - Yohei Misumi
- Department of NeurologyGraduate School of Medical SciencesKumamoto UniversityKumamotoJapan
| | - Minoru Kikuchi
- Department of RadiologyManda Memorial HospitalHokkaidoJapan
| | - Koichi Matsumoto
- Department of PharmacyTokyo Medical University Ibaraki Medical CenterIbarakiJapan
| | - Masayuki Noritake
- Department of Metabolism and EndocrinologyTokyo Medical University Ibaraki Medical CenterIbarakiJapan
| | - Yasuhiro Kawachi
- Department of DermatologyTokyo Medical University Ibaraki Medical CenterIbarakiJapan
| | - Masaki Kobayashi
- Department of NephrologyTokyo Medical University Ibaraki Medical CenterIbarakiJapan
| | - Yukio Ando
- Department of NeurologyGraduate School of Medical SciencesKumamoto UniversityKumamotoJapan
| | - Yoshiya Katsura
- Department of Metabolism and EndocrinologyTokyo Medical University Ibaraki Medical CenterIbarakiJapan
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36
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Hydroxytyrosol Inhibits Protein Oligomerization and Amyloid Aggregation in Human Insulin. Int J Mol Sci 2020; 21:ijms21134636. [PMID: 32629793 PMCID: PMC7370040 DOI: 10.3390/ijms21134636] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Revised: 06/22/2020] [Accepted: 06/29/2020] [Indexed: 01/02/2023] Open
Abstract
Hydroxytyrosol (HT), one of the main phenolic components of olive oil, has attracted considerable interest for its biological properties, including a remarkable antioxidant and anti-inflammatory power and, recently, for its ability to interfere with the amyloid aggregation underlying several human diseases. We report here a broad biophysical approach and cell biology techniques that allowed us to characterize the molecular mechanisms by which HT affects insulin amyloid aggregation and the related cytotoxicity. Our data show that HT is able to fully inhibit insulin amyloid aggregation and this property seems to be ascribed to the stabilization of the insulin monomeric state. Moreover, HT completely reverses the toxic effect produced by amyloid insulin aggregates in neuroblastoma cell lines by fully inhibiting the production of toxic amyloid species. These findings suggest that the beneficial effects of olive oil polyphenols, including HT, may arise from multifunctional activities and suggest possible a application of this natural compound in the prevention or treatment of amyloid-associated diseases.
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37
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Pariary R, Ghosh B, Bednarikova Z, Varnava KG, Ratha BN, Raha S, Bhattacharyya D, Gazova Z, Sarojini V, Mandal AK, Bhunia A. Targeted inhibition of amyloidogenesis using a non-toxic, serum stable strategically designed cyclic peptide with therapeutic implications. BIOCHIMICA ET BIOPHYSICA ACTA-PROTEINS AND PROTEOMICS 2020; 1868:140378. [PMID: 32032759 DOI: 10.1016/j.bbapap.2020.140378] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/01/2019] [Revised: 01/24/2020] [Accepted: 01/31/2020] [Indexed: 10/25/2022]
Abstract
Amyloidogenic disorders are currently rising as a global health issue, prompting more and more studies dedicated to the development of effective targeted therapeutics. The innate affinity of these amyloidogenic proteins towards the biomembranes adds further complexities to the systems. Our previous studies have shown that biologically active peptides can effectively target amyloidogenesis serving as an efficient therapeutic alternative in several amyloidogenic disorders. The structural uniqueness of the PWWP motif in the de novo designed heptapeptide, KR7 (KPWWPRR-NH2) was demonstrated to target insulin fiber elongation specifically. By working on insulin, an important model system in amyloidogenic studies, we gained several mechanistic insights into the inhibitory actions at the protein-peptide interface. Here, we report a second-generation non-toxic and serum stable cyclic peptide, based primarily on the PWWP motif that resulted in complete inhibition of insulin fibrillation both in the presence and absence of the model membranes. Using both low- and high-resolution spectroscopic techniques, we could delineate the specific mechanism of inhibition, at atomistic resolution. Our studies put forward an effective therapeutic intervention that redirects the default aggregation kinetics towards off-pathway fibrillation. Based on the promising results, this novel cyclic peptide can be considered an excellent lead to design pharmaceutical molecules against amyloidogenesis.
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Affiliation(s)
- Ranit Pariary
- Department of Biophysics, Bose Institute, P-1/12 CIT Scheme VII (M), Kolkata, 700054, India
| | - Baijayanti Ghosh
- Department of Molecular Medicine, Bose Institute, P-1/12 CIT Scheme VII (M), Kolkata, 700054, India
| | - Zuzana Bednarikova
- Department of Biophysics, Institute of Experimental Physics, Slovak Academy of Sciences, Kosice, Slovakia
| | - Kyriakos Gabriel Varnava
- School of Chemical Sciences, The University of Auckland, Private Bag, 92019, Auckland, New Zealand
| | - Bhisma N Ratha
- Department of Biophysics, Bose Institute, P-1/12 CIT Scheme VII (M), Kolkata, 700054, India
| | - Sreyan Raha
- Department of Physics, Bose Institute, 93/1 APC Road, Kolkata 700009, India
| | - Dipita Bhattacharyya
- Department of Biophysics, Bose Institute, P-1/12 CIT Scheme VII (M), Kolkata, 700054, India
| | - Zuzana Gazova
- Department of Biophysics, Institute of Experimental Physics, Slovak Academy of Sciences, Kosice, Slovakia
| | - Vijayalekshmi Sarojini
- School of Chemical Sciences, The University of Auckland, Private Bag, 92019, Auckland, New Zealand
| | - Atin K Mandal
- Department of Molecular Medicine, Bose Institute, P-1/12 CIT Scheme VII (M), Kolkata, 700054, India
| | - Anirban Bhunia
- Department of Biophysics, Bose Institute, P-1/12 CIT Scheme VII (M), Kolkata, 700054, India.
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Yuzu K, Lindgren M, Nyström S, Zhang J, Mori W, Kunitomi R, Nagase T, Iwaya K, Hammarström P, Zako T. Insulin amyloid polymorphs: implications for iatrogenic cytotoxicity. RSC Adv 2020; 10:37721-37727. [PMID: 35515176 PMCID: PMC9057202 DOI: 10.1039/d0ra07742a] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2020] [Accepted: 10/05/2020] [Indexed: 12/15/2022] Open
Abstract
Amyloid specific fluorescent probes are becoming an important tool for studies of disease progression and conformational polymorphisms in diseases related to protein misfolding and aggregation such as localized and systemic amyloidosis. Herein, it is demonstrated that using the amyloid specific fluorescent probes pFTAA and benzostyryl capped benzothiadiazole BTD21, structural polymorphisms of insulin amyloids are imaged in localized insulin-derived amyloid aggregates formed at subcutaneous insulin-injection sites in patients with diabetes. It is also found that pFTAA and BTD21 could discriminate structural polymorphisms of insulin amyloids, so called fibrils and filaments, formed in vitro. In addition, it is shown that insulin drug preparations used for treating diabetes formed various types of amyloid aggregates that can be assessed and quantified using pFTAA and BTD21. Interestingly, incubated pFTAA-positive insulin preparation aggregates show cytotoxicity while BTD21-positive aggregates are less toxic. From these observations, a variety of amyloid polymorphic structures with different cytotoxicities formed both in vivo and in vitro by various insulin preparations are proposed. Structural polymorphism of insulin amyloids in vivo can be recognized using novel amyloid specific fluorescent probes, pFTAA and BTD21.![]()
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Affiliation(s)
- Keisuke Yuzu
- Department of Chemistry and Biology
- Graduate School of Science and Engineering
- Ehime University
- Matsuyama
- Japan
| | - Mikael Lindgren
- Department of Physics
- Faculty of Natural Sciences
- Norwegian University of Science and Technology
- NO-7491 Trondheim
- Norway
| | - Sofie Nyström
- IFM Chemistry
- Linköping University
- SE-58183 Linköping
- Sweden
| | - Jun Zhang
- IFM Chemistry
- Linköping University
- SE-58183 Linköping
- Sweden
| | - Wakako Mori
- Department of Chemistry and Biology
- Graduate School of Science and Engineering
- Ehime University
- Matsuyama
- Japan
| | - Risako Kunitomi
- Department of Chemistry and Biology
- Graduate School of Science and Engineering
- Ehime University
- Matsuyama
- Japan
| | - Terumasa Nagase
- Department of Metabolism and Endocrinology
- Tokyo Medical University Ibaraki Medical Center
- Japan
| | - Keiichi Iwaya
- Department of Pathology
- Sasaki Institute
- Kyoundo Hospital
- Tokyo 101-0062
- Japan
| | | | - Tamotsu Zako
- Department of Chemistry and Biology
- Graduate School of Science and Engineering
- Ehime University
- Matsuyama
- Japan
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Ishida H, Fukuda M, Kondoh T, Yamaguchi Y, Asahi M, Aikawa C, Matsui H, Wakabayashi Y, Nakaya M, Oka R. [Actual state of injection techniques and effect of medical treatment instructions in elderly patients with diabetes using insulin]. Nihon Ronen Igakkai Zasshi 2020; 57:282-290. [PMID: 32893210 DOI: 10.3143/geriatrics.57.282] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
AIM Support for elderly patients using insulin to continue self-injection safely is required for clinical settings. The aim of this study was 1) to clarify the actual state of self-injection procedures for elderly people injecting insulin and 2) to verify whether or not the injection procedures can be improved by nurses' medical treatment instructions. SUBJECTS AND METHODS The subjects were outpatients at an educational facility certified by the Japan Diabetes Society. Basic clinical characteristics, the Mini-Cog cognitive function test, basic ADL and instrumental ADL, and 24 items of the self-injection procedure were evaluated by nurses. After receiving a 30-minute face-to-face session of individual instructions from trained nurses two or more times, the injection procedure was re-evaluated. RESULTS Of the 63 study subjects, 10 were injecting insulin with the support of others (supported injection group). The median age in the self-injection group was 72 years old, while that in the supported injection group was 82 years old. The supported injection group was older, the female ratio higher, and the Mini-Cog and ADL indices lower than in the self-injection group (p <0.05). The median history of the use of insulin was over 10 years in both groups. In the self-injection group, the degree of proficiency with the injection technique was significantly improved after receiving the instructions (p <0.05). The biggest improvement was in response to the question, "Do you know that you need to shift the site of injections?", which doubled (p <0.05). The correct answer rate for "Do you know the name of your insulin formulation?" was less than half, and it remained unchanged even after receiving instructions. In the supported injection group, 90% had a Mini-Cog of ≤2 points, but 6 subjects (60%) were able to perform an injection by themselves with others supporting the adjustments made to the amount of insulin. CONCLUSIONS The self-injection technique improved significantly, even in elderly people, following the delivery of medical treatment instructions by nurses, and the item with the highest improvement effect was subjects' understanding of the need to shift the injection site. Our study showed that even in elderly people with cognitive dysfunction who are performing injections with the support of others, some of the injection procedures were retained by relying on procedural memory acquired in the past.
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Affiliation(s)
- Hitomi Ishida
- Department of Nursing, Hokuriku Central Hospital of Japan Mutual Aid Association of Public School Teachers
| | - Mariko Fukuda
- Department of Nursing, Hokuriku Central Hospital of Japan Mutual Aid Association of Public School Teachers
| | - Takaaki Kondoh
- Department of Nursing, Hokuriku Central Hospital of Japan Mutual Aid Association of Public School Teachers
| | - Yoko Yamaguchi
- Department of Nursing, Hokuriku Central Hospital of Japan Mutual Aid Association of Public School Teachers
| | - Miho Asahi
- Department of Nursing, Hokuriku Central Hospital of Japan Mutual Aid Association of Public School Teachers
| | - Chiyuki Aikawa
- Department of Nursing, Hokuriku Central Hospital of Japan Mutual Aid Association of Public School Teachers
| | - Hiromi Matsui
- Department of Pharmacy, Hokuriku Central Hospital of Japan Mutual Aid Association of Public School Teachers
| | - Yusuke Wakabayashi
- Department of Internal Medicine, Hokuriku Central Hospital of Japan Mutual Aid Association of Public School Teachers
| | - Masako Nakaya
- Department of Internal Medicine, Hokuriku Central Hospital of Japan Mutual Aid Association of Public School Teachers
| | - Rie Oka
- Department of Internal Medicine, Hokuriku Central Hospital of Japan Mutual Aid Association of Public School Teachers
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Thewjitcharoen Y, Prasartkaew H, Tongsumrit P, Wongjom S, Boonchoo C, Butadej S, Nakasatien S, Karndumri K, Veerasomboonsin V, Krittiyawong S, Himathongkam T. Prevalence, Risk Factors, and Clinical Characteristics of Lipodystrophy in Insulin-Treated Patients with Diabetes: An Old Problem in a New Era of Modern Insulin. Diabetes Metab Syndr Obes 2020; 13:4609-4620. [PMID: 33273836 PMCID: PMC7705266 DOI: 10.2147/dmso.s282926] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/19/2020] [Accepted: 10/21/2020] [Indexed: 11/25/2022] Open
Abstract
BACKGROUND Lipodystrophy has been reported as a common complication in insulin-treated patients, which could lead to unexplained hypoglycemia and suboptimal glycemic control. This study aimed to determine the prevalence, associated risk factors, and clinical characteristics of insulin-induced lipodystrophy in Thai patients. PATIENTS AND METHODS This was a cross-sectional study involving insulin-treated patients at Theptarin Hospital, one of the largest diabetes centers in Thailand. RESULTS A total of 400 patients were studied (female 53.5%, T2DM 86%, mean age 65.6±15.4 years, duration of diabetes 23.0±10.2 years, median insulin treatment 10 years, usage of insulin analog 72.1%, A1C 7.9±1.6%) . The prevalence of lipohypertrophy (LH) in overall patients was 37.3% (T1DM 46.4% and T2DM 35.8%). The highest prevalence (57.5%) was observed in long-standing (≥10 years) T1DM patients. Multivariate analysis revealed that the duration of insulin use (≥10 years), use of human insulin, and incorrect rotation of injection sites were associated with LH. Patients with LH were found to have 7-times greater risk of unexplained hypoglycemia when compared with patients without LH. Lipoatrophy (LA) was found in only four cases (1.0%). All LA cases had a concurrence palpable area of LH. CONCLUSION Insulin-induced lipodystrophy is still an overlooked complication in the conundrum of diabetes care. The presence of lipodystrophy was significantly associated with the occurrence of unexplained hypoglycemia. It should be emphasized to recognize this condition by inspecting and palpating insulin injecting sites regularly, and educate patients to avoid the development of lipodystrophy.
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Affiliation(s)
- Yotsapon Thewjitcharoen
- Diabetes and Thyroid Center, Theptarin Hospital, Bangkok, Thailand
- Correspondence: Yotsapon Thewjitcharoen Diabetes and Thyroid Center, Theptarin Hospital, Bangkok, ThailandTel +66-2-348-7000 Email
| | | | | | - Saruda Wongjom
- Diabetes and Thyroid Center, Theptarin Hospital, Bangkok, Thailand
| | | | - Siriwan Butadej
- Diabetes and Thyroid Center, Theptarin Hospital, Bangkok, Thailand
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