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补充铁增加了瘤负担,改变了人类肠癌小鼠模型中的蛋白质表达

Ian X Swain¹, Adam M Kresak¹

¹Department of Pathology, School of Medicine, Case Western Reserve University, 2103 Cornell Road, Cleveland, OH 44106, USA.

|May 11, 2024

概括

过多的食铁显著增加了小鼠的肠道瘤负担. 这种多余的铁还会改变蛋白质表达,影响细胞完整性和适应性反应,突出显示铁摄入量与瘤发育之间的联系.

科学领域:

胃肠病学胃肠病学
在瘤学瘤学.
营养科学营养科学

背景情况:

通常使用铁补充剂,但过量摄入可能会促进肠癌.
了解铁对肠道瘤发生的影响对于公共卫生至关重要.

研究的目的:

为了研究过多的食铁对肠道瘤负担的影响.
为了确定瘤和正常组织之间蛋白质表达的变化,以应对多余的铁.

主要方法:

在10周的时间里,APC小鼠吃了足够的铁或多余的铁饮食.
量化了瘤负担,并对肠道组织进行了蛋白质组分析 (2D-DIGE).

主要成果:

过量的铁显著增加了78.3%的肠道瘤负担.
鉴定了69种不同表达的蛋白质异构体,其中23种不同于充足和多余的铁瘤.
参与细胞完整性和反应性氧物种反应的蛋白质受到影响.

结论:

过多的食铁会加剧肠道瘤发生.
补充铁可以调节与细胞完整性和应激反应相关的关键功能网络.
研究结果表明,需要对微量元素摄入量制定精细的饮食指南.

关键词:

肠道癌症是肠道癌症的一种疾病.补充铁补充剂补充铁补充剂微量营养素是一种微量营养素.鼠标模型鼠标模型鼠标模型蛋白质表达蛋白质表达瘤是一个瘤.

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