Benzalkonium Chloride Accelerates the Formation of the Amyloid Fibrils of Corneal Dystrophy-associated Peptides

Kato, Yusuke; Yagi, Hisashi; Kaji, Yuichi; Oshika, Tetsuro; Goto, Yuji

doi:https://doi.org/10.1074/jbc.M113.477695

Benzalkonium Chloride Accelerates the Formation of the Amyloid Fibrils of Corneal Dystrophy-associated Peptides

Kato, Yusuke; Yagi, Hisashi; Kaji, Yuichi et al.

Journal of Biological Chemistry, 2013, 288(35), 25109-25118

Number of Access:745（2025-08-30 11:33 Counts）

Identifier to cite or link to this item: https://hdl.handle.net/11094/71280

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Title	Benzalkonium Chloride Accelerates the Formation of the Amyloid Fibrils of Corneal Dystrophy-associated Peptides
Creator	CreatorName Kato, Yusuke
	NRID 1000010432494 1000010432494 CreatorName Yagi, Hisashi
	NRID 1000050361332 1000050361332 CreatorName Kaji, Yuichi
	NRID 1000090194133 1000090194133 CreatorName Oshika, Tetsuro
	NRID 1000040153770 1000040153770 researchmap permalink read0014440 read0014440 CreatorName Goto, Yuji
Description	This research was originally published in the Journal of Biological Chemistry. Yusuke Kato, Hisashi Yagi, Yuichi Kaji, Tetsuro Oshika and Yuji Goto. Benzalkonium Chloride Accelerates the Formation of the Amyloid Fibrils of Corneal Dystrophy-associated Peptides. J. Biol. Chem. 2013; 288, 25109-25118. © the American Society for Biochemistry and Molecular Biology
Abstract	Corneal dystrophies are genetic disorders resulting in progressive corneal clouding due to the deposition of amyloid fibrils derived from keratoepithelin, also called transforming growth factor β-induced protein (TGFBI). The formation of amyloid fibrils is often accelerated by surfactants such as sodium dodecyl sulfate (SDS). Most eye drops contain benzalkonium chloride (BAC), a cationic surfactant, as a preservative substance. In the present study, we aimed to reveal the role of BAC in the amyloid fibrillation of keratoepithelin-derived peptides in vitro. We used three types of 22-residue synthetic peptides covering Leu110-Glu131 of the keratoepithelin sequence: an R-type peptide with wild-type R124, a C-type peptide with C124 associated with lattice corneal dystrophy type I, and a H-type peptide with H124 associated with granular corneal dystrophy type II. The time courses of spontaneous amyloid fibrillation and seed-dependent fibril elongation were monitored in the presence of various concentrations of BAC or SDS using thioflavin T fluorescence. BAC and SDS accelerated the fibrillation of all synthetic peptides in the absence and presence of seeds. Optimal acceleration occurred near the CMC, which suggests that the unstable and dynamic interactions of keratoepithelin peptides with amphipathic surfactants led to the formation of fibrils. These results suggest that eye drops containing BAC may deteriorate corneal dystrophies and that those without BAC are preferred especially for patients with corneal dystrophies.
Publisher	American Society for Biochemistry and Molecular Biology
Source Title	Journal of Biological Chemistry
Volume (Issue)	288(35)
Page	25109-25118
Date of Issued	2013-08
Language	English
Handle URL	https://hdl.handle.net/11094/71280
eISSN	1083351X
NCID	AA1202449X
Relation.isIdenticalTo	DOI (Publisher Version) https://doi.org/10.1074/jbc.M113.477695
Access Rights	open access
oaire:version	Version of Record
Category	学術雑誌論文 Journal Article

Resource Type	journal article
Local Type	Journal Article
DCMI Type	Text
DCTERMS.bibliographicCitation	Journal of Biological Chemistry. 2013, 288(35), p. 25109-25118
DC.title	Benzalkonium Chloride Accelerates the Formation of the Amyloid Fibrils of Corneal Dystrophy-associated Peptides
DC.creator	Kato, Yusuke
	Yagi, Hisashi
	Kaji, Yuichi
	Oshika, Tetsuro
	Goto, Yuji
DC.publisher	American Society for Biochemistry and Molecular Biology
DC.language' scheme='DCTERMS.RFC1766	English
DC.type' scheme='DCTERMS.DCMIType	Text
DCTERMS.issued' scheme='DCTERMS.W3CDTF	2013-08
DC.identifier	https://doi.org/10.1074/jbc.M113.477695
DC.description	This research was originally published in the Journal of Biological Chemistry. Yusuke Kato, Hisashi Yagi, Yuichi Kaji, Tetsuro Oshika and Yuji Goto. Benzalkonium Chloride Accelerates the Formation of the Amyloid Fibrils of Corneal Dystrophy-associated Peptides. J. Biol. Chem. 2013; 288, 25109-25118. © the American Society for Biochemistry and Molecular Biology
DCTERMS.abstract	Corneal dystrophies are genetic disorders resulting in progressive corneal clouding due to the deposition of amyloid fibrils derived from keratoepithelin, also called transforming growth factor β-induced protein (TGFBI). The formation of amyloid fibrils is often accelerated by surfactants such as sodium dodecyl sulfate (SDS). Most eye drops contain benzalkonium chloride (BAC), a cationic surfactant, as a preservative substance. In the present study, we aimed to reveal the role of BAC in the amyloid fibrillation of keratoepithelin-derived peptides in vitro. We used three types of 22-residue synthetic peptides covering Leu110-Glu131 of the keratoepithelin sequence: an R-type peptide with wild-type R124, a C-type peptide with C124 associated with lattice corneal dystrophy type I, and a H-type peptide with H124 associated with granular corneal dystrophy type II. The time courses of spontaneous amyloid fibrillation and seed-dependent fibril elongation were monitored in the presence of various concentrations of BAC or SDS using thioflavin T fluorescence. BAC and SDS accelerated the fibrillation of all synthetic peptides in the absence and presence of seeds. Optimal acceleration occurred near the CMC, which suggests that the unstable and dynamic interactions of keratoepithelin peptides with amphipathic surfactants led to the formation of fibrils. These results suggest that eye drops containing BAC may deteriorate corneal dystrophies and that those without BAC are preferred especially for patients with corneal dystrophies.
DC.format	71280
citation_title	Benzalkonium Chloride Accelerates the Formation of the Amyloid Fibrils of Corneal Dystrophy-associated Peptides
citation_author	Kato, Yusuke
	Yagi, Hisashi
	Kaji, Yuichi
	Oshika, Tetsuro
	Goto, Yuji
citation_publisher	American Society for Biochemistry and Molecular Biology
citation_language	English
citation_date	2013-08
citation_journal_title	Journal of Biological Chemistry
citation_volume	288
citation_issue	35
citation_firstpage	25109
citation_lastpage	25118
citation_doi	https://doi.org/10.1074/jbc.M113.477695
citation_public_url	https://hdl.handle.net/11094/71280

Benzalkonium Chloride Accelerates the Formation of the Amyloid Fibrils of Corneal Dystrophy-associated Peptides

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