J Exp Med:炎症导致的疾病,与某蛋白质的自我切割...

2018-02-14 佚名 中国生物技术网

近日,澳大利亚昆士兰大学(UQ)的研究人员发现一种炎症过程在健康细胞中自动关闭的方式,这很可能是阻止多种常见疾病(包括肝脏疾病、阿尔兹海默症和痛风)中不受控炎症造成伤害的关键。现在,他们正在研究手动停止这一过程的方法。该研究已于近日发表在《Journal of Experimental Medicine》上。

近日,澳大利亚昆士兰大学(UQ)的研究人员发现一种炎症过程在健康细胞中自动关闭的方式,这很可能是阻止多种常见疾病(包括肝脏疾病、阿尔兹海默症和痛风)中不受控炎症造成伤害的关键。现在,他们正在研究手动停止这一过程的方法。该研究已于近日发表在《Journal of Experimental Medicine》上。

UQ分子生物科学研究所(IMB)的助理教授Kate Schroder博士说:“这种炎症通路会导致多种不同疾病。既然我们弄清楚该通路在健康时如何自动关闭,那么我们也就可以调查它为什么不会在疾病时关闭了,这是非常令人兴奋的。”

Schroder博士在IMB炎症和疾病研究中心的工作关注于炎性小体,炎性小体是由多种蛋白质组成的复合体,它位于炎症和疾病的中心。

Schroder说:“当免疫系统检测到感染、受伤或其他异常时,就会形成这种复合体,它们会向免疫细胞发出信息,让其进行响应。如果这些异常情况无法被处理,比如阿尔兹海默症中的淀粉样斑块,这些分子机器就会继续释放脉冲,通过持续的炎症导致神经退行性损伤。”

这项由Dave Boucher博士牵头的研究团队发现,炎性体通常拥有一个内置的计时器开关,以确保它们在被触发之后只会在特定的时间内释放脉冲。

Schroder博士说:“炎性体通过激活一种像剪刀一样发挥功能的蛋白质来启动炎症过程,能够切割自己和其他的蛋白质。我们发现,经过一段时间后,这种蛋白质会再一次切割自己以关闭通路,所以如果我们掌控了这个系统,那么我们就能够在疾病发生的时候手动关闭这条通路。”

Schroder博士的实验室已经开始研究脂肪肝的炎性小体。由于全球性的肥胖和糖尿病趋势,这种疾病正在快速蔓延。对于脂肪肝患者来说,他们肝脏中的脂肪越来越多,并伴有炎症,还会导致肝硬化,这可能需要肝脏移植,严重了甚至还会导致肝癌。

IMB的研究人员目前已经开发出了阻断炎性小体的化合物,药物的商业化也正在进行中。

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    2018-02-14 wxl882001

    学习一下

    0

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    2018-02-14 1e0f8808m18(暂无匿称)

    学习了.谢谢分享.

    0

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    2018-02-14 wqkm

    ^_^^_^^_^

    0

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