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首页> 外文期刊>International Journal of Physiology, Pathophysiology and Pharmacology >Melatonin and tumeric ameliorate aging-induced changes: implication of immunoglobulins, cytokines, DJ-1/NRF2 and apoptosis regulation
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Melatonin and tumeric ameliorate aging-induced changes: implication of immunoglobulins, cytokines, DJ-1/NRF2 and apoptosis regulation

机译:褪黑素和姜黄改善衰老引起的变化:免疫球蛋白,细胞因子,DJ-1 / NRF2和凋亡调控的意义。

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Aging is associated with several biological, physiological, cellular and histological changes. In the present study, we investigated the effect of aging on different signaling pathways, including antioxidant system, apoptosis and immune status. Several natural products were used to ameliorate and block aging-related changes. Melatonin and turmeric have been known to ameliorate and decrease aging-related changes. However, the exact mechanism(s) of their action is not fully understood. In the present study, we tried to uncover the regulatory mechanism(s) by which melatonin and turmeric work against aging. We found that aging differentially regulated blood serum immunoglobulins; increased IgA and decreased IgE. Furthermore, all the serum cytokines investigated (TNF-α, IFN-γ, IL-6 and IL-8) were highly increased by aging. In addition, the antioxidant upstream regulators; DJ-1 and NRF2 were markedly repressed with aging in thymus tissues. We also found that aging induced apoptosis promoting genes p53 and Bax mRNA in thymus tissues. Finally, we found clear histological changes in thymus and spleen tissues. Administration of either melatonin or tumeric clearly ameliorated and blocked to some extinct the effect of aging. Altogether, aging was associated with downregulation of antioxidant regulators; DJ-1 and NRF2, promoted apoptosis and induced changes in the immune status. Furthermore, melatonin and tumeric markedly reversed the action of aging through activating DJ-1/NRF2 signaling pathway and inhibiting p53/Bax apoptotic pathway.
机译:衰老与几种生物学,生理,细胞和组织学变化有关。在本研究中,我们调查了衰老对不同信号通路的影响,包括抗氧化系统,细胞凋亡和免疫状态。几种天然产品用于改善和阻止衰老相关的变化。众所周知,褪黑激素和姜黄可以改善和减少衰老相关的变化。但是,它们的作用的确切机制还没有被完全理解。在本研究中,我们试图揭示褪黑激素和姜黄对抗衰老的调控机制。我们发现衰老对血清免疫球蛋白的调节不同。 IgA升高而IgE降低。此外,所有研究的血清细胞因子(TNF-α,IFN-γ,IL-6和IL-8)都随着年龄的增长而大大增加。另外,抗氧化剂上游调节剂;随着胸腺组织的衰老,DJ-1和NRF2受到显着抑制。我们还发现衰老诱导了胸腺组织中凋亡促进基因p53和Bax mRNA的表达。最后,我们在胸腺和脾脏组织中发现了明显的组织学变化。褪黑激素或姜黄素的施用明显改善并阻止了某些灭绝的衰老作用。总而言之,老化与抗氧化剂调节剂的下调有关。 DJ-1和NRF2促进细胞凋亡并诱导免疫状态的变化。此外,褪黑激素和姜黄素通过激活DJ-1 / NRF2信号通路和抑制p53 / Bax凋亡通路,显着逆转衰老作用。

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