The role of peroxisome proliferator-activated receptors (PPAR) in immune responses.

The role of peroxisome proliferator-activated receptors (PPAR) in immune responses.
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DOI:
10.1016/j.metabol.2020.154338
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发表时间:
2021-01
期刊:
Metabolism: clinical and experimental
影响因子:
--
通讯作者:
Boussiotis VA
Boussiotis VA
中科院分区:
其他
文献类型:
--
作者:
Christofides A;Konstantinidou E;Jani C;Boussiotis VA

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过氧化物酶体增殖物激活受体(Peroxisome proliferator-activated receptor,PPARs)是核激素受体超家族中由脂肪酸激活的转录因子,参与能量代谢的调节。目前,已鉴定出三种亚型:PPARα、PPARγ和PPARβ/δ。过氧化物酶体增殖物激活受体α和过氧化物酶体增殖物激活受体δ在氧化组织中高度表达,并调节参与底物递送和氧化磷酸化(OXPHOS)以及能量稳态调节的基因。相比之下,PPARγ在脂肪生成和脂质合成中更重要,在白色脂肪组织(WAT)中表达水平最高。除了调节全身能量稳态的组织外,PPARs还在免疫细胞中表达,并在免疫细胞分化和命运定型中具有新兴的关键作用。在这篇综述中,我们讨论了PPARs在先天性和适应性免疫系统中的作用及其在免疫介导的炎症反应中的作用。
Peroxisome proliferator-activated receptors (PPARs) are fatty acid-activated transcription factors of nuclear hormone receptor superfamily that regulate energy metabolism. Currently, three PPAR subtypes have been identified: PPARα, PPARγ, and PPARβ/δ. PPARα and PPARδ are highly expressed in oxidative tissues and regulate genes involved in substrate delivery and oxidative phosphorylation (OXPHOS) and regulation of energy homeostasis. In contrast, PPARγ is more important in lipogenesis and lipid synthesis, with highest expression levels in white adipose tissue (WAT). In addition to tissues regulating whole body energy homeostasis, PPARs are expressed in immune cells and have an emerging critical role in immune cell differentiation and fate commitment. In this review, we discuss the actions of PPARs in the function of the innate and the adaptive immune system and their implications in immune-mediated inflammatory conditions.
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