Department of Pharmacology, Western Sydney University, Campbelltown Campus, Sydney, Australia.
Department of Pharmacology, Western Sydney University, Campbelltown Campus, Sydney, Australia.
Neurochem Int. 2021 Jan;142:104897. doi: 10.1016/j.neuint.2020.104897. Epub 2020 Nov 10.
Neuroinflammation is a complex response to brain injury involving the activation of glia, release of inflammatory mediators, such as cytokines and chemokines, and generation of reactive oxygen and nitrogen species. Even though it is considered an event secondary to neuronal death or dysfunction, neuro-inflammation comprises a majority of the non-neuronal contributors to the cause and progression of neurodegenerative diseases like Alzheimer's Disease (AD), Parkinson's Disease (PD), Multiple Sclerosis (MS), Chronic Traumatic Encephalopathy (CTE) and others. As a result of the lack of effectiveness of current treatments for neurodegenerative diseases, neuroinflammation has become a legitimate therapeutic target for drug discovery, leading to the study of various in vivo and in vitro models of neuroinflammation. Several molecules sourced from plants have displayed anti-inflammatory properties in the study of neurodegenerative diseases. A group of these anti-inflammatory compounds has been classified as cytokine-suppressive anti-inflammatory drugs (CSAIDs), which target the pro-inflammatory AP1 and nuclear factor-κB signaling pathways and inhibit the expression of many pro-inflammatory cytokines, such as interleukin IL-1, IL-6, TNF-α, or nitric oxide. Australian plants, thriving amid the driest inhabited continent of the world, are an untapped source of chemical diversity in the form of secondary metabolites. These compounds are produced in response to biotic and abiotic stresses that the plants are exposed to in the highly biodiverse environment. This review is an attempt to highlight anti-inflammatory compounds isolated from Australian plants.
神经炎症是一种对脑损伤的复杂反应,涉及神经胶质细胞的激活、炎症介质的释放,如细胞因子和趋化因子,以及活性氧和氮物种的产生。尽管它被认为是神经元死亡或功能障碍的继发事件,但神经炎症构成了导致神经退行性疾病(如阿尔茨海默病(AD)、帕金森病(PD)、多发性硬化症(MS)、慢性创伤性脑病(CTE)等疾病的原因和进展的大多数非神经元贡献者。由于目前治疗神经退行性疾病的方法效果不佳,神经炎症已成为药物发现的一个合理的治疗靶点,导致对各种体内和体外神经炎症模型的研究。一些来自植物的分子在神经退行性疾病的研究中表现出抗炎特性。这些抗炎化合物中的一组被归类为细胞因子抑制性抗炎药物(CSAIDs),它们靶向促炎的 AP1 和核因子-κB 信号通路,并抑制许多促炎细胞因子的表达,如白细胞介素 IL-1、IL-6、TNF-α 或一氧化氮。澳大利亚植物在世界上最干旱的有人居住的大陆上茁壮成长,是一种未被开发的化学多样性来源,以次生代谢物的形式存在。这些化合物是在植物暴露于高度多样化的环境中的生物和非生物胁迫下产生的。这篇综述试图强调从澳大利亚植物中分离出的抗炎化合物。