Reduced Iron in Diabetic Wounds: An Oxidative Stress-Dependent Role for STEAP3 in Extracellular Matrix Deposition and Remodeling.
J Invest Dermatol
; 139(11): 2368-2377.e7, 2019 11.
Article
em En
| MEDLINE
| ID: mdl-31176711
ABSTRACT
Iron is crucial for maintaining normal bodily function with well-documented roles in erythropoiesis, hemostasis, and inflammation. Despite this, little is known about the temporal regulation of iron during wound healing, or how iron contributes to wound biology and pathology. In this study, we profiled tissue iron levels across a healing time-course, identifying iron accumulation during late-stage repair. Diabetic murine wounds displayed significantly reduced iron levels, delayed extracellular matrix deposition, and dysregulation of iron gene expression. In vitro studies revealed important cellular roles for iron, promoting both the deposition and remodeling of extracellular proteins. Functional studies identified oxidative stress-dependent upregulation of the iron-converting metalloreductase, STEAP3, as a key mediator of extracellular matrix production. Taken together, these data reveal a mechanistic role for iron in facilitating the remodeling stage of wound healing. Indeed, targeting tissue iron could be a promising future strategy to tackle the development and progression of chronic wounds.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Oxirredutases
/
Pele
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Ferimentos e Lesões
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Proteínas de Ciclo Celular
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Complicações do Diabetes
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Matriz Extracelular
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Ferro
Limite:
Animals
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Female
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Humans
Idioma:
En
Revista:
J Invest Dermatol
Ano de publicação:
2019
Tipo de documento:
Article
País de afiliação:
Reino Unido