Interleukin-6 Reduces β-Cell Oxidative Stress by Linking Autophagy With the Antioxidant Response.
Interleukin-6 Reduces β-Cell Oxidative Stress by Linking Autophagy With the Antioxidant Response.
复制标题
白细胞介素-6通过将自噬与抗氧化反应联系起来降低β细胞氧化应激。
DOI:
10.2337/db17-1280
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发表时间:
2018-08
期刊:
影响因子:
7.7
通讯作者:
Linnemann AK
中科院分区:
文献类型:
--
作者:
Marasco MR;Conteh AM;Reissaus CA;Cupit JE 5th;Appleman EM;Mirmira RG;Linnemann AK
Production of reactive oxygen species (ROS) is a key instigator of β-cell dysfunction in diabetes. The pleiotropic cytokine interleukin 6 (IL-6) has previously been linked to β-cell autophagy but has not been studied in the context of β-cell antioxidant response. We used a combination of animal models of diabetes and analysis of cultured human islets and rodent β-cells to study how IL-6 influences antioxidant response. We show that IL-6 couples autophagy to antioxidant response and thereby reduces ROS in β-cells and human islets. β-Cell-specific loss of IL-6 signaling in vivo renders mice more susceptible to oxidative damage and cell death through the selective β-cell toxins streptozotocin and alloxan. IL-6-driven ROS reduction is associated with an increase in the master antioxidant factor NRF2, which rapidly translocates to the mitochondria to decrease mitochondrial activity and stimulate mitophagy. IL-6 also initiates a robust transient decrease in cellular cAMP levels, likely contributing to the stimulation of mitophagy to mitigate ROS. Our findings suggest that coupling autophagy to antioxidant response in β-cells leads to stress adaptation that can reduce cellular apoptosis. These findings have implications for β-cell survival under diabetogenic conditions and present novel targets for therapeutic intervention.
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影响因子:
3.2
作者:
Lukowiak, B;Vandewalle, B;Pattou, F
通讯作者:
Pattou, F
DOI:
10.1038/nrm3735
发表时间:
2014-02
期刊:
Nature reviews. Molecular cell biology
影响因子:
--
作者:
通讯作者:
--
DOI:
10.1111/febs.13515
发表时间:
2015-11
期刊:
The FEBS journal
影响因子:
--
作者:
Fitzwalter BE;Thorburn A
通讯作者:
Thorburn A
影响因子:
30.5
作者:
通讯作者:
--
影响因子:
2.4
作者:
Itoh K;Ye P;Matsumiya T;Tanji K;Ozaki T
通讯作者:
Ozaki T