Role of altered mitochondria functions in the pathogenesis of systemic lupus erythematosus

Mitochondria, main producers of reactive-oxygen species (ROS), were studied to examine their role in the pathogenesis of systemic lupus erythematosus (SLE). PBMCs and mitochondria were isolated from SLE patients and healthy volunteers for various parameters. Mitochondrial ROS, swelling, hyperpolariz...

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Veröffentlicht in:Lupus 2016-03, Vol.25 (3), p.272-281
Hauptverfasser: Leishangthem, B D, Sharma, A, Bhatnagar, A
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description Mitochondria, main producers of reactive-oxygen species (ROS), were studied to examine their role in the pathogenesis of systemic lupus erythematosus (SLE). PBMCs and mitochondria were isolated from SLE patients and healthy volunteers for various parameters. Mitochondrial ROS, swelling, hyperpolarization and levels of cytochrome c, caspase3 in the cells were assessed by flow cytometry. ROS was significantly increased in SLE patients (SLE vs controls: 1.83 ± 1.03 vs 1.10 ± 0.35; p 
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PBMCs and mitochondria were isolated from SLE patients and healthy volunteers for various parameters. Mitochondrial ROS, swelling, hyperpolarization and levels of cytochrome c, caspase3 in the cells were assessed by flow cytometry. ROS was significantly increased in SLE patients (SLE vs controls: 1.83 ± 1.03 vs 1.10 ± 0.35; p < 0.0001). Depolarized state of mitochondria was greater in patients (SLE vs controls: 7.10 ± 5.50% vs 2.5 ± 1.8%; p < 0.05). Mitochondria swelling was found to be significantly altered in patients (SLE vs controls: 112.65 ± 36.56 vs 60.49 ± 20.69; p < 0.001). Expression of cytochrome c and caspase 3 (SLE vs controls: 1.37 ± 0.37% vs 1.01 ± 0.03%; 1.57 ± 0.46% vs 1.06 ± 0.07%; p < 0.05) respectively was found to be significantly increased in SLE. Further, the enzymatic activity of mitochondrial complex was assessed in isolated mitochondria. A significant decrease in activity of Complex I (SLE vs controls: 11.79 ± 3.18 vs 15.10 ± 6.38 nmol NADH oxidized/min/mg protein, p < 0.05); Complex IV (SLE vs control: 9.41 ± 5.16 vs 13.56 ± 5.92 nmol cytochrome c oxidized/min/mg protein, p < 0.05) and Complex V (SLE vs controls: 4.85 ± 1.39 vs 6.17 ± 2.02 nmol ATP hydrolyzed/min/mg protein, p < 0.05) was found in SLE patients in comparison to healthy controls. However, Complex II did not show significant variation in either group (SLE vs controls: 42.2 ± 28.6 vs 61.71 ± 42.3 nmol succinate oxidized/min/mg protein; ns). The decrease in enzyme activities of mitochondrial Complexes I, IV and V on one hand and ROS, hyperpolarization and apoptosis on the other points toward a possible role of mitochondria in the pathogenesis of lupus.]]></description><identifier>ISSN: 0961-2033</identifier><identifier>EISSN: 1477-0962</identifier><identifier>DOI: 10.1177/0961203315605370</identifier><identifier>PMID: 26385216</identifier><language>eng</language><publisher>London, England: SAGE Publications</publisher><subject>Adult ; Apoptosis ; Case-Control Studies ; Caspase 3 - analysis ; Cytochromes c - analysis ; Electron Transport Chain Complex Proteins - analysis ; Female ; Humans ; Leukocytes, Mononuclear - enzymology ; Leukocytes, Mononuclear - pathology ; Lupus Erythematosus, Systemic - diagnosis ; Lupus Erythematosus, Systemic - enzymology ; Lupus Erythematosus, Systemic - pathology ; Membrane Potential, Mitochondrial ; Mitochondria - enzymology ; Mitochondria - pathology ; Mitochondrial Diseases - diagnosis ; Mitochondrial Diseases - enzymology ; Mitochondrial Diseases - pathology ; Mitochondrial Swelling ; Reactive Oxygen Species - analysis</subject><ispartof>Lupus, 2016-03, Vol.25 (3), p.272-281</ispartof><rights>The Author(s) 2015</rights><rights>The Author(s) 2015.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c398t-fd529e5244d7f486961f5186bbec99b6fc3a9300c5ee250c0732359dc8b972bd3</citedby><cites>FETCH-LOGICAL-c398t-fd529e5244d7f486961f5186bbec99b6fc3a9300c5ee250c0732359dc8b972bd3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://journals.sagepub.com/doi/pdf/10.1177/0961203315605370$$EPDF$$P50$$Gsage$$H</linktopdf><linktohtml>$$Uhttps://journals.sagepub.com/doi/10.1177/0961203315605370$$EHTML$$P50$$Gsage$$H</linktohtml><link.rule.ids>314,776,780,21798,27901,27902,43597,43598</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/26385216$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Leishangthem, B D</creatorcontrib><creatorcontrib>Sharma, A</creatorcontrib><creatorcontrib>Bhatnagar, A</creatorcontrib><title>Role of altered mitochondria functions in the pathogenesis of systemic lupus erythematosus</title><title>Lupus</title><addtitle>Lupus</addtitle><description><![CDATA[Mitochondria, main producers of reactive-oxygen species (ROS), were studied to examine their role in the pathogenesis of systemic lupus erythematosus (SLE). PBMCs and mitochondria were isolated from SLE patients and healthy volunteers for various parameters. Mitochondrial ROS, swelling, hyperpolarization and levels of cytochrome c, caspase3 in the cells were assessed by flow cytometry. ROS was significantly increased in SLE patients (SLE vs controls: 1.83 ± 1.03 vs 1.10 ± 0.35; p < 0.0001). Depolarized state of mitochondria was greater in patients (SLE vs controls: 7.10 ± 5.50% vs 2.5 ± 1.8%; p < 0.05). Mitochondria swelling was found to be significantly altered in patients (SLE vs controls: 112.65 ± 36.56 vs 60.49 ± 20.69; p < 0.001). Expression of cytochrome c and caspase 3 (SLE vs controls: 1.37 ± 0.37% vs 1.01 ± 0.03%; 1.57 ± 0.46% vs 1.06 ± 0.07%; p < 0.05) respectively was found to be significantly increased in SLE. Further, the enzymatic activity of mitochondrial complex was assessed in isolated mitochondria. A significant decrease in activity of Complex I (SLE vs controls: 11.79 ± 3.18 vs 15.10 ± 6.38 nmol NADH oxidized/min/mg protein, p < 0.05); Complex IV (SLE vs control: 9.41 ± 5.16 vs 13.56 ± 5.92 nmol cytochrome c oxidized/min/mg protein, p < 0.05) and Complex V (SLE vs controls: 4.85 ± 1.39 vs 6.17 ± 2.02 nmol ATP hydrolyzed/min/mg protein, p < 0.05) was found in SLE patients in comparison to healthy controls. However, Complex II did not show significant variation in either group (SLE vs controls: 42.2 ± 28.6 vs 61.71 ± 42.3 nmol succinate oxidized/min/mg protein; ns). 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Sharma, A ; Bhatnagar, A</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c398t-fd529e5244d7f486961f5186bbec99b6fc3a9300c5ee250c0732359dc8b972bd3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2016</creationdate><topic>Adult</topic><topic>Apoptosis</topic><topic>Case-Control Studies</topic><topic>Caspase 3 - analysis</topic><topic>Cytochromes c - analysis</topic><topic>Electron Transport Chain Complex Proteins - analysis</topic><topic>Female</topic><topic>Humans</topic><topic>Leukocytes, Mononuclear - enzymology</topic><topic>Leukocytes, Mononuclear - pathology</topic><topic>Lupus Erythematosus, Systemic - diagnosis</topic><topic>Lupus Erythematosus, Systemic - enzymology</topic><topic>Lupus Erythematosus, Systemic - pathology</topic><topic>Membrane Potential, Mitochondrial</topic><topic>Mitochondria - enzymology</topic><topic>Mitochondria - pathology</topic><topic>Mitochondrial Diseases - diagnosis</topic><topic>Mitochondrial Diseases - enzymology</topic><topic>Mitochondrial Diseases - pathology</topic><topic>Mitochondrial Swelling</topic><topic>Reactive Oxygen Species - analysis</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Leishangthem, B D</creatorcontrib><creatorcontrib>Sharma, A</creatorcontrib><creatorcontrib>Bhatnagar, A</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>Immunology Abstracts</collection><collection>AIDS and Cancer Research Abstracts</collection><collection>ProQuest Health &amp; 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PBMCs and mitochondria were isolated from SLE patients and healthy volunteers for various parameters. Mitochondrial ROS, swelling, hyperpolarization and levels of cytochrome c, caspase3 in the cells were assessed by flow cytometry. ROS was significantly increased in SLE patients (SLE vs controls: 1.83 ± 1.03 vs 1.10 ± 0.35; p < 0.0001). Depolarized state of mitochondria was greater in patients (SLE vs controls: 7.10 ± 5.50% vs 2.5 ± 1.8%; p < 0.05). Mitochondria swelling was found to be significantly altered in patients (SLE vs controls: 112.65 ± 36.56 vs 60.49 ± 20.69; p < 0.001). Expression of cytochrome c and caspase 3 (SLE vs controls: 1.37 ± 0.37% vs 1.01 ± 0.03%; 1.57 ± 0.46% vs 1.06 ± 0.07%; p < 0.05) respectively was found to be significantly increased in SLE. Further, the enzymatic activity of mitochondrial complex was assessed in isolated mitochondria. A significant decrease in activity of Complex I (SLE vs controls: 11.79 ± 3.18 vs 15.10 ± 6.38 nmol NADH oxidized/min/mg protein, p < 0.05); Complex IV (SLE vs control: 9.41 ± 5.16 vs 13.56 ± 5.92 nmol cytochrome c oxidized/min/mg protein, p < 0.05) and Complex V (SLE vs controls: 4.85 ± 1.39 vs 6.17 ± 2.02 nmol ATP hydrolyzed/min/mg protein, p < 0.05) was found in SLE patients in comparison to healthy controls. However, Complex II did not show significant variation in either group (SLE vs controls: 42.2 ± 28.6 vs 61.71 ± 42.3 nmol succinate oxidized/min/mg protein; ns). The decrease in enzyme activities of mitochondrial Complexes I, IV and V on one hand and ROS, hyperpolarization and apoptosis on the other points toward a possible role of mitochondria in the pathogenesis of lupus.]]></abstract><cop>London, England</cop><pub>SAGE Publications</pub><pmid>26385216</pmid><doi>10.1177/0961203315605370</doi><tpages>10</tpages></addata></record>
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subjects Adult
Apoptosis
Case-Control Studies
Caspase 3 - analysis
Cytochromes c - analysis
Electron Transport Chain Complex Proteins - analysis
Female
Humans
Leukocytes, Mononuclear - enzymology
Leukocytes, Mononuclear - pathology
Lupus Erythematosus, Systemic - diagnosis
Lupus Erythematosus, Systemic - enzymology
Lupus Erythematosus, Systemic - pathology
Membrane Potential, Mitochondrial
Mitochondria - enzymology
Mitochondria - pathology
Mitochondrial Diseases - diagnosis
Mitochondrial Diseases - enzymology
Mitochondrial Diseases - pathology
Mitochondrial Swelling
Reactive Oxygen Species - analysis
title Role of altered mitochondria functions in the pathogenesis of systemic lupus erythematosus
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