Cigarette smoke-induced impairment of autophagy in macrophages increases galectin-8 and inflammation.
Cigarette smoke-induced impairment of autophagy in macrophages increases galectin-8 and inflammation.
复制标题
香烟烟雾引起的巨噬细胞自噬损伤会增加半乳糖凝集素 8 和炎症。
DOI:
10.1038/s41598-020-79848-0
复制
发表时间:
2021-01-11
影响因子:
4.6
通讯作者:
Barnes PJ
中科院分区:
文献类型:
--
作者:
Kono Y;Colley T;To M;Papaioannou AI;Mercado N;Baker JR;To Y;Abe S;Haruki K;Ito K;Barnes PJ
Cigarette smoke impairs autophagy, an intracellular protein degradation system, but the consequences of this defect have not been fully elucidated, especially in macrophages. Dysfunctional alveolar macrophages play an important role in chronic obstructive pulmonary disease (COPD). Here we show that galectin-8, a danger receptor that identifies damaged intracellular host vesicles and initiates autophagosome engulfment, is elevated due to activation of autophagy by cigarette smoke extract (CSE) in macrophages. CSE impaired autophagic flux in PMA-differentiated U937 macrophage-like cells, resulting in intracellular accumulation of galectin-8 and the autophagic adaptor protein NDP52. COPD patients showed elevated levels of galectin-8 and NDP52 in the lung homogenates with significant increase in the serum galectin-8 levels in patients with frequent acute exacerbations. Soluble galectin-8 induced interleukin (IL)-6 release in bronchial epithelial cells via PI3Kα signalling. Thus, increased galectin-8 due to CSE-induced impaired autophagy may be involved in the pathogenesis of COPD and may be a biomarker of this disease.
登录
查看更多内容
影响因子:
4.8
作者:
Arbel-Goren, R;Levy, Y;Zick, Y
通讯作者:
Zick, Y
影响因子:
2.7
作者:
Mercado, Nicolas;Colley, Thomas;Barnes, Peter J.
通讯作者:
Barnes, Peter J.
DOI:
10.1074/jbc.m117.809293
发表时间:
2018-02-16
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
Falcon B;Noad J;McMahon H;Randow F;Goedert M
通讯作者:
Goedert M
影响因子:
7.8
作者:
Bjorkoy, Geir;Lamark, Trond;Brech, Andreas;Outzen, Heidi;Perander, Maria;Overvatn, Aud;Stenmark, Harald;Johansen, Terje
通讯作者:
Johansen, Terje
DOI:
10.1096/fj.201800965r
发表时间:
2019-03
期刊:
FASEB journal : official publication of the Federation of American Societies for Experimental Biology
影响因子:
--
作者:
Baker JR;Vuppusetty C;Colley T;Hassibi S;Fenwick PS;Donnelly LE;Ito K;Barnes PJ
通讯作者:
Barnes PJ