کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8553146 | 1562577 | 2018 | 27 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Heme Oxygenase-1 protects astroglia against manganese-induced oxidative injury by regulating mitochondrial quality control
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کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم محیط زیست
بهداشت، سم شناسی و جهش زایی
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چکیده انگلیسی
Heme Oxygenase-1 (HO-1), a stress- responsive enzyme which catalyzes heme degradation into iron, carbon monoxide, and biliverdin, exerts a neuroprotective role involving many different signaling pathways. In Parkinson disease patients, elevated HO-1 expression levels in astrocytes are involved in antioxidant defense. In the present work, employing an in vitro model of Mn2+-induced Parkinsonism in astroglial C6 cells, we investigated the role of HO-1 in both apoptosis and mitochondrial quality control (MQC). HO-1 exerted a protective effect against Mn2+ injury. In fact, HO-1 decreased both intracellular and mitochondrial reactive oxygen species as well as the appearance of apoptotic features. Considering that Mn2+ induces mitochondrial damage and a defective MQC has been implicated in neurodegenerative diseases, we hypothesized that HO-1 could mediate cytoprotection by regulating the MQC processes. Results obtained provide the first evidence that the beneficial effects of HO-1 in astroglial cells are mediated by the maintenance of both mitochondrial fusion/fission and biogenesis/mitophagy balances. Altogether, our data demonstrate a pro-survival function for HO-1 in Mn2+-induced apoptosis that involves the preservation of a proper MQC. These findings point to HO-1 as a new therapeutic target linked to mitochondrial pathophysiology in Manganism and probably Parkinson´s disease.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Toxicology Letters - Volume 295, 1 October 2018, Pages 357-368
Journal: Toxicology Letters - Volume 295, 1 October 2018, Pages 357-368
نویسندگان
Roxana Mayra Gorojod, Agustina Alaimo, Soledad Porte Alcon, Jimena Hebe Martinez, MarÃa Eugenia Cortina, Elba Susana Vazquez, Mónica Lidia Kotler,