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Iwaya K, Zako T, Fukunaga J, Sörgjerd KM, Ogata K, Kogure K, Kosano H, Noritake M, Maeda M, Ando Y, Katsura Y, Nagase T. Toxicity of insulin-derived amyloidosis: a case report. BMC Endocr Disord 2019; 19:61. [PMID: 31196059 PMCID: PMC6567432 DOI: 10.1186/s12902-019-0385-0] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/19/2019] [Accepted: 05/27/2019] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND Insulin-derived amyloidosis is a skin-related complication of insulin therapy that interferes with insulin therapy. Although toxicities of in vitro-formed insulin amyloid fibrils have been well studied, the toxicity of insulin-derived amyloidosis remains to be clarified. CASE PRESENTATION A 58-year-old man with type 2 diabetes mellitus underwent a lower limb amputation due to diabetic gangrene. Several antibiotics including minocycline were administered for infection and sepsis. A hard mass at the insulin injection sites in the lower abdomen was discovered by chance four months later. Although no abnormal findings in the surface skin of the mass were observed, necrotic tissue was seen around the mass when a biopsy was performed. Histological and toxicity studies were performed for this patient and four other patients with abdominal masses at insulin injection sites. Histological and immunohistochemical studies showed that the masses had typical characteristics of amyloid deposits in all cases, whereas necrotic findings were seen adjacent to the amyloid deposit only in the case presented. Toxicity studies indicated that the amyloid tissue from the present case had significant cell toxicity compared to the control skin tissue or the amyloid tissues from the other four cases. CONCLUSIONS This report showed that toxic insulin-derived amyloidosis can occur. In addition, this report suggested that toxic insulin-derived amyloidosis may cause necrosis in the surrounding tissue. Although the toxic amyloid deposit of insulin-derived amyloidosis was found in only one patient, no structural differences between toxic and non-toxic deposits were seen on histological and immunohistochemical studies.
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Affiliation(s)
- Keiichi Iwaya
- Department of Pathology, SASAKI Institute, Kyoundo Hospital, Tokyo, Japan
| | - Tamotsu Zako
- Bioengineering Laboratory, RIKEN Cluster for Pioneering Research, Saitama, Japan
- Department of Chemistry and Biology, Graduate School of Science and Engineering, Ehime University, Ehime, Japan
| | - Junta Fukunaga
- Department of Chemistry and Biology, Graduate School of Science and Engineering, Ehime University, Ehime, Japan
| | | | - Kentaro Ogata
- Department of Pathology, Tachikawa Hospital, Tokyo, Japan
| | - Koichiro Kogure
- Department of Metabolism and Endocrinology, Tokyo Medical University Ibaraki Medical Center, 3-20-1 Chuou, Ami, Ibaraki, 300-0395 Japan
| | - Hiroshi Kosano
- Faculty of Pharmaceutical Science, Teikyo University, Tokyo, Japan
| | - Masayuki Noritake
- Department of Metabolism and Endocrinology, Tokyo Medical University Ibaraki Medical Center, 3-20-1 Chuou, Ami, Ibaraki, 300-0395 Japan
| | - Mizuo Maeda
- Bioengineering Laboratory, RIKEN Cluster for Pioneering Research, Saitama, Japan
| | - Yukio Ando
- Department of Neurology, Graduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan
| | - Yoshiya Katsura
- Department of Metabolism and Endocrinology, Tokyo Medical University Ibaraki Medical Center, 3-20-1 Chuou, Ami, Ibaraki, 300-0395 Japan
| | - Terumasa Nagase
- Department of Metabolism and Endocrinology, Tokyo Medical University Ibaraki Medical Center, 3-20-1 Chuou, Ami, Ibaraki, 300-0395 Japan
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Sörgjerd KM, Zako T, Sakono M, Stirling PC, Leroux MR, Saito T, Nilsson P, Sekimoto M, Saido TC, Maeda M. Correction to Human Prefoldin Inhibits Amyloid-β (Aβ) Fibrillation and Contributes to Formation of Nontoxic Aβ Aggregates. Biochemistry 2014. [DOI: 10.1021/bi5005415] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Vignaud H, Bobo C, Lascu I, Sörgjerd KM, Zako T, Maeda M, Salin B, Lecomte S, Cullin C. A structure-toxicity study of Aß42 reveals a new anti-parallel aggregation pathway. PLoS One 2013; 8:e80262. [PMID: 24244667 PMCID: PMC3823702 DOI: 10.1371/journal.pone.0080262] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2013] [Accepted: 10/01/2013] [Indexed: 11/18/2022] Open
Abstract
Amyloid beta (Aβ) peptides produced by APP cleavage are central to the pathology of Alzheimer’s disease. Despite widespread interest in this issue, the relationship between the auto-assembly and toxicity of these peptides remains controversial. One intriguing feature stems from their capacity to form anti-parallel ß-sheet oligomeric intermediates that can be converted into a parallel topology to allow the formation of protofibrillar and fibrillar Aβ. Here, we present a novel approach to determining the molecular aspects of Aß assembly that is responsible for its in vivo toxicity. We selected Aß mutants with varying intracellular toxicities. In vitro, only toxic Aß (including wild-type Aß42) formed urea-resistant oligomers. These oligomers were able to assemble into fibrils that are rich in anti-parallel ß-sheet structures. Our results support the existence of a new pathway that depends on the folding capacity of Aß .
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Affiliation(s)
- Hélène Vignaud
- Institut de Biochimie et Génétique Cellulaires, CNRS UMR 5095, Université Bordeaux Segalen, Bordeaux, France
| | - Claude Bobo
- Institut de Biochimie et Génétique Cellulaires, CNRS UMR 5095, Université Bordeaux Segalen, Bordeaux, France
| | - Ioan Lascu
- Institut de Biochimie et Génétique Cellulaires, CNRS UMR 5095, Université Bordeaux Segalen, Bordeaux, France
| | | | - Tamotsu Zako
- Bioengineering Laboratory RIKEN Institute, Wako, Saitama, Japan
| | - Mizuo Maeda
- Bioengineering Laboratory RIKEN Institute, Wako, Saitama, Japan
| | - Benedicte Salin
- Institut de Biochimie et Génétique Cellulaires, CNRS UMR 5095, Université Bordeaux Segalen, Bordeaux, France
| | - Sophie Lecomte
- Chimie et Biologie des Membranes et Nano-objets, CNRS UMR 5248, Université Bordeaux 1, IPB, Pessac, France
| | - Christophe Cullin
- Institut de Biochimie et Génétique Cellulaires, CNRS UMR 5095, Université Bordeaux Segalen, Bordeaux, France
- * E-mail:
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Sörgjerd KM, Zako T, Sakono M, Stirling PC, Leroux MR, Saito T, Nilsson P, Sekimoto M, Saido TC, Maeda M. Human prefoldin inhibits amyloid-β (Aβ) fibrillation and contributes to formation of nontoxic Aβ aggregates. Biochemistry 2013; 52:3532-42. [PMID: 23614719 DOI: 10.1021/bi301705c] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Amyloid-β (Aβ) peptides represent key players in the pathogenesis of Alzheimer's disease (AD), and mounting evidence indicates that soluble Aβ oligomers mediate the toxicity. Prefoldin (PFD) is a molecular chaperone that prevents aggregation of misfolded proteins. Here we investigated the role of PFD in Aβ aggregation. First, we demonstrated that PFD is expressed in mouse brain by Western blotting and immunohistochemistry and found that PFD is upregulated in AD model APP23 transgenic mice. Then we investigated the effect of recombinant human PFD (hPFD) on Aβ(1-42) aggregation in vitro and found that hPFD inhibited Aβ fibrillation and induced formation of soluble Aβ oligomers. Interestingly, cell viability measurements using the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide assay showed that Aβ oligomers formed by hPFD were 30-40% less toxic to cultured rat pheochromocytoma (PC12) cells or primary cortical neurons from embryonic C57BL/6CrSlc mice than previously reported Aβ oligomers (formed by archaeal PFD) and Aβ fibrils (p < 0.001). Thioflavin T measurements and immunoblotting indicated different structural properties for the different Aβ oligomers. Our findings show a relation between cytotoxicity of Aβ oligomers and structure and suggest a possible protective role of PFD in AD.
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