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首页> 外文期刊>Current opinion in lipidology >Lipid metabolism: an apolipoprotein-derived weapon combating trypanosoma infection.
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Lipid metabolism: an apolipoprotein-derived weapon combating trypanosoma infection.

机译:脂质代谢:一种源自载脂蛋白的武器,可对抗锥虫病感染。

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摘要

High-density lipoprotein (HDL) constitutes a heterogeneous population of particles with multiple proteins associated. Due to the inverse correlation of plasma HDL concentrations and risk of cardiovascular disease, the roles of HDL in atherosclerosis and lipoprotein metabolism are currently intensely studied. A large body of evidence, however, points to novel functions of HDL beyond atherosclerosis and lipid metabolism. The elucidation of the apolipoprotein (apo) L-1-containing subfraction of HDL as a key player in the innate immune defense against some parasite infections is a recent intriguing example.ApoL-1 was discovered in 1997 and shown to be a part of a primate-specific complex named trypanosoma lytic factor-1 (TLF) that also contains apoA-I and haptoglobin-related protein as the main protein components. TLF has lytic activity toward African Trypanosoma brucei brucei and renders humans and most other primates resistant to infection with this parasite causing endemic infections of African cattle.The Trypanosoma species brucei rhodesiense and brucei gambiense, however, are resistant to TLF and cause sleeping sickness in humans. Sleeping sickness is fatal when untreated and thus an important health problem in many African countries.
机译:高密度脂蛋白(HDL)构成了具有多种相关蛋白的异质颗粒群。由于血浆HDL浓度与心血管疾病的风险呈负相关,因此目前正在深入研究HDL在动脉粥样硬化和脂蛋白代谢中的作用。然而,大量证据表明,HDL不仅具有动脉粥样硬化和脂质代谢作用,还具有新颖的功能。阐明载脂蛋白(apo)L-1的HDL亚型是先天免疫防御某些寄生虫感染的关键因素,这是最近的一个有趣的例子.ApoL-1于1997年被发现并被证明是ApoL-1的一部分。灵长类动物特异性复合体,称为锥虫瘤溶解因子-1(TLF),也包含apoA-I和触珠蛋白相关蛋白作为主要蛋白成分。 TLF对非洲布氏锥虫布鲁氏菌具有溶解活性,并使人类和大多数其他灵长类动物对这种寄生虫具有抵抗力,从而引起非洲牛的地方性感染。然而,锥虫布鲁氏菌Rhodesiense和Brucei gambiense物种对TLF有抗药性并导致人类昏睡病。 。如果不加以治疗,昏睡病是致命的,因此在许多非洲国家是一个重要的健康问题。

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