The Pathogenesis of Haemochromatosis in the HFE Knockout Mouse Model

HFE 基因敲除小鼠模型中血色素沉着症的发病机制

• 批准号: nhmrc : 110282
• 负责人: A/Pr Deborah Trinder
• 金额: $ 16.31万
• 依托单位国家: 澳大利亚
• 项目类别: NHMRC Project Grants
• 财政年份: 2000
• 资助国家: 澳大利亚
• 起止时间: 2000-01-01 至 2002-12-31
• 项目状态: 已结题
• 来源: https://researchdata.edu.au/pathogenesis-haemochromatosis-hfe-mouse-model/82294
• 关键词: Pathogenesis; Haemochromatosis; HFE; Knockout; Mouse

Hereditary haemochromatosis is a very common genetic disease that affects approximately 1 in 200 Australians. It alters the way the body uses iron. It causes an increase in absorption of dietary iron and increased deposition of iron in major organs of the body such as the liver, heart and pancreas. This iron is harmful to tissues in the body and may lead to the development of liver cirrhosis, heart disease, diabetes and malignancy. The gene that is defective in hereditary haemochromatosis patients has been identified and called HFE however, the function of HFE is not known. Recently, an excellent laboratory model of this disease has been developed. We aim to use this model to show for the first time how HFE controls the amount of iron the body absorbs and how much iron is delivered to tissues such as the liver. We also aim to identify how these processes are impaired in hereditary haemochromatosis patients. From this study, we will gain a better understanding of the role of HFE in iron metabolism of normal and hereditary haemochromatosis patients and this will provide opportunities for the development of new therapies for the prevention or treatment of iron overload.

遗传性血色病是一种非常常见的遗传性疾病，大约每200名澳大利亚人中就有1人受到影响。它改变了身体使用铁的方式。它会增加膳食铁的吸收，并增加铁在身体主要器官（如肝脏，心脏和胰腺）中的沉积。这种铁对身体组织有害，可能导致肝硬化、心脏病、糖尿病和恶性肿瘤的发展。在遗传性血色病患者中有缺陷的基因已被鉴定并称为HFE，然而，HFE的功能尚不清楚。最近，已经开发出了这种疾病的极好的实验室模型。我们的目标是使用这个模型来首次展示HFE如何控制身体吸收的铁量以及有多少铁被输送到肝脏等组织。我们还旨在确定这些过程是如何在遗传性血色病患者受损。通过这项研究，我们将更好地了解HFE在正常和遗传性血色病患者铁代谢中的作用，这将为开发预防或治疗铁过载的新疗法提供机会。