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Priyanka S, Thushara A, Rauf AA, Indira M. Alcohol induced NLRP3 inflammasome activation in the brain of rats is attenuated by ATRA supplementation. Brain Behav Immun Health 2020; 2:100024. [PMID: 38377424 PMCID: PMC8474578 DOI: 10.1016/j.bbih.2019.100024] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2019] [Accepted: 12/09/2019] [Indexed: 02/08/2023] Open
Abstract
Alcohol abuse affects several neurological pathways and causes significant alterations in the brain. Abstention from alcohol is an effective intervention against alcohol related diseases. But the recovery of the damaged cells to normal presents a major problem in those who have stopped alcohol consumption. Hence therapeutic interventions are needed. Our previous studies have shown that all trans retinoic acid (ATRA) is effective in reducing alcohol induced neuro toxicity. Chronic alcohol administration up-regulates and activates the NLRP3 inflammasome leading to caspase-1 activation and IL-1β production causing neuroinflammation. Hence, we investigated whether ATRA has any impact on NLRP3 inflammasomes activation. Rats were divided into two groups and were maintained for 90 days as control and ethanol group (4 g/kg body weight). After 90 days, ethanol administration was stopped and animals in the control group were divided into control and control + ATRA (100 μg/kg body weight per day) groups; those in the ethanol group as ethanol abstention and ATRA (100 μg/kg body weight per day) and maintained for 30 days. Administration of ATRA reduced reactive oxygen species and endotoxins which were elevated in alcoholic rats. There was also reduction in the expression of NLRP3 inflammasome and caspase 1. Our results suggested ATRA down regulated NLRP3 activation with concomitant decrease in the release of caspase -1 and production of IL1β. However, all these parameters were higher in abstention in comparison with ATRA supplemented group. In short therapeutic intervention with ATRA regressed alcohol induced inflammasome activation better than abstention.
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Affiliation(s)
- S.H. Priyanka
- Department of Biochemistry, University of Kerala, Kariavattom, Thiruvananthapuram, 695 581, Kerala, India
| | - A.J. Thushara
- Department of Biochemistry, University of Kerala, Kariavattom, Thiruvananthapuram, 695 581, Kerala, India
| | - Arun A. Rauf
- Department of Biochemistry, University of Kerala, Kariavattom, Thiruvananthapuram, 695 581, Kerala, India
| | - M. Indira
- Department of Biochemistry, University of Kerala, Kariavattom, Thiruvananthapuram, 695 581, Kerala, India
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Priyanka SH, Syam Das S, Nair SS, Rauf AA, Indira M. All trans retinoic acid modulates TNF-α and CYP2E1 pathways and enhances regression of ethanol-induced fibrosis markers in hepatocytes and HSCs in abstaining rodent model. Arch Physiol Biochem 2019; 125:302-310. [PMID: 29592769 DOI: 10.1080/13813455.2018.1455712] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Context: Our previous studies showed that all trans retinoic acid (ATRA) ameliorates alcohol-induced toxicity. Hence, we evaluated the efficacy of ATRA and abstention in the regression of alcohol-induced hepatotoxicity. Materials and methods: After ethanol administration to rats for 90 days, the regression of alcohol-induced toxicity was studied by supplementing ATRA at a dose of 100 μg/kg body weight for 30 days. It was also compared with animals in abstention. Results and discussion: Ethanol administration enhanced oxidative stress, activated HSCs and increased collagen deposition. All these alterations were reversed to a certain extent by ATRA supplementation. Conclusions: ATRA had better efficacy than just abstention in reducing ethanol-induced toxicity. The mechanism might be downregulation of CYP2E1, leading to reduced oxidative stress in the hepatocytes and thus impeding NFκB activation, cytokine production, activation of HSC and resulting in the reduction of inflammation and remodelling of fibrosis by modulating MMP and TIMP.
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Affiliation(s)
- S H Priyanka
- a Department of Biochemistry, University of Kerala , Thiruvananthapuram , India
| | - S Syam Das
- a Department of Biochemistry, University of Kerala , Thiruvananthapuram , India
| | - Saritha S Nair
- a Department of Biochemistry, University of Kerala , Thiruvananthapuram , India
| | - Arun A Rauf
- a Department of Biochemistry, University of Kerala , Thiruvananthapuram , India
| | - M Indira
- a Department of Biochemistry, University of Kerala , Thiruvananthapuram , India
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Priyanka SH, Syam Das S, Thushara AJ, Rauf AA, Indira M. All Trans Retinoic Acid Attenuates Markers of Neuroinflammation in Rat Brain by Modulation of SIRT1 and NFκB. Neurochem Res 2018; 43:1791-1801. [DOI: 10.1007/s11064-018-2595-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2018] [Revised: 06/27/2018] [Accepted: 07/10/2018] [Indexed: 12/11/2022]
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Nair SS, Das S S, Nair RP, Indira M. Supplementation of all trans retinoic acid ameliorates ethanol-induced endoplasmic reticulum stress. Arch Physiol Biochem 2018; 124:131-138. [PMID: 28857622 DOI: 10.1080/13813455.2017.1369548] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
CONTEXT Molecular pathogenesis of chronic alcoholism is linked to increased endoplasmic reticulum stress. Ethanol is a competitive inhibitor of vitamin A metabolism and vitamin A supplementation aggravates existing liver problems. Hence, we probed into the impact of supplementation of all trans retinoic acid (ATRA), the active metabolite of vitamin A on ethanol-induced endoplasmic reticulcum stress. METHODS Male Sprague-Dawley rats were divided into four groups - I: Control; II: Ethanol; III: ATRA; IV: ATRA + Ethanol. After 90 days the animals were sacrificed to study markers of lipid peroxidation in hepatic microsomal fraction and expression of ER stress proteins and apoptosis in liver. RESULTS AND CONCLUSION Ethanol caused hepatic hyperlipidemia, enhanced microsomal lipid peroxidation, upregulated expression of unfolded protein response associated proteins and that of apoptosis. Ethanol also led to downregulation of retinoid receptors. ATRA supplementation reversed all these alterations indicating the decrease in ethanol-induced endoplasmic reticulum stress.
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Affiliation(s)
- Saritha S Nair
- a Department of Biochemistry , University of Kerala , Thiruvananthapuram , Kerala , India
| | - Syam Das S
- a Department of Biochemistry , University of Kerala , Thiruvananthapuram , Kerala , India
| | - Reshma P Nair
- b Agroprocessing and Technology Division , CSIR-NIIST , Thiruvananthapuram , Kerala , India
| | - M Indira
- a Department of Biochemistry , University of Kerala , Thiruvananthapuram , Kerala , India
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Abadie-Guedes R, Bezerra RDS, Guedes RCA. Alpha-Tocopherol Counteracts the Effect of Ethanol on Cortical Spreading Depression in Rats of Various Ages, With and Without Ethanol Abstinence. Alcohol Clin Exp Res 2016; 40:728-33. [DOI: 10.1111/acer.12998] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2015] [Accepted: 12/30/2015] [Indexed: 01/28/2023]
Affiliation(s)
- Ricardo Abadie-Guedes
- Departamento de Fisiologia e Farmacologia; CCB; Universidade Federal de Pernambuco; Recife Pernambuco Brazil
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Duncan JW, Zhang X, Wang N, Johnson S, Harris S, Udemgba C, Ou XM, Youdim MB, Stockmeier CA, Wang JM. Binge ethanol exposure increases the Krüppel-like factor 11-monoamine oxidase (MAO) pathway in rats: Examining the use of MAO inhibitors to prevent ethanol-induced brain injury. Neuropharmacology 2016; 105:329-340. [PMID: 26805422 DOI: 10.1016/j.neuropharm.2016.01.024] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2015] [Revised: 01/14/2016] [Accepted: 01/20/2016] [Indexed: 12/25/2022]
Abstract
Binge drinking induces several neurotoxic consequences including oxidative stress and neurodegeneration. Because of these effects, drugs which prevent ethanol-induced damage to the brain may be clinically beneficial. In this study, we investigated the ethanol-mediated KLF11-MAO cell death cascade in the frontal cortex of Sprague-Dawley rats exposed to a modified Majchowicz 4-day binge ethanol model and control rats. Moreover, MAO inhibitors (MAOIs) were investigated for neuroprotective activity against binge ethanol. Binge ethanol-treated rats demonstrated a significant increase in KLF11, both MAO isoforms, protein oxidation and caspase-3, as well as a reduction in BDNF expression in the frontal cortex compared to control rats. MAOIs prevented these binge ethanol-induced changes, suggesting a neuroprotective benefit. Neither binge ethanol nor MAOI treatment significantly affected protein expression levels of the oxidative stress enzymes, SOD2 or catalase. Furthermore, ethanol-induced antinociception was enhanced following exposure to the 4-day ethanol binge. These results demonstrate that the KLF11-MAO pathway is activated by binge ethanol exposure and MAOIs are neuroprotective by preventing the binge ethanol-induced changes associated with this cell death cascade. This study supports KLF11-MAO as a mechanism of ethanol-induced neurotoxicity and cell death that could be targeted with MAOI drug therapy to alleviate alcohol-related brain injury. Further examination of MAOIs to reduce alcohol use disorder-related brain injury could provide pivotal insight to future pharmacotherapeutic opportunities.
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Affiliation(s)
- Jeremy W Duncan
- Program in Neuroscience, University of Mississippi Medical Center, Jackson, MS 39216, USA; Department of Psychiatry and Human Behavior, University of Mississippi Medical Center, Jackson, MS 39216, USA
| | - Xiao Zhang
- Program in Neuroscience, University of Mississippi Medical Center, Jackson, MS 39216, USA; Department of Psychiatry and Human Behavior, University of Mississippi Medical Center, Jackson, MS 39216, USA
| | - Niping Wang
- Department of Psychiatry and Human Behavior, University of Mississippi Medical Center, Jackson, MS 39216, USA
| | - Shakevia Johnson
- Department of Psychiatry and Human Behavior, University of Mississippi Medical Center, Jackson, MS 39216, USA
| | - Sharonda Harris
- Department of Psychiatry and Human Behavior, University of Mississippi Medical Center, Jackson, MS 39216, USA
| | - Chinelo Udemgba
- Department of Psychiatry and Human Behavior, University of Mississippi Medical Center, Jackson, MS 39216, USA
| | - Xiao-Ming Ou
- Department of Psychiatry and Human Behavior, University of Mississippi Medical Center, Jackson, MS 39216, USA
| | - Moussa B Youdim
- Technion-Rappaport Family Faculty of Medicine, Eve Topf Center of Excellence, For Neurodegenerative Diseases Research, Haifa, 31096, Israel
| | - Craig A Stockmeier
- Department of Psychiatry and Human Behavior, University of Mississippi Medical Center, Jackson, MS 39216, USA
| | - Jun Ming Wang
- Program in Neuroscience, University of Mississippi Medical Center, Jackson, MS 39216, USA; Department of Psychiatry and Human Behavior, University of Mississippi Medical Center, Jackson, MS 39216, USA; Department of Pathology, University of Mississippi Medical Center, Jackson, MS 39216, USA.
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Current Neurogenic and Neuroprotective Strategies to Prevent and Treat Neurodegenerative and Neuropsychiatric Disorders. Neuromolecular Med 2015; 17:404-22. [PMID: 26374113 DOI: 10.1007/s12017-015-8369-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2015] [Accepted: 08/22/2015] [Indexed: 12/31/2022]
Abstract
The adult central nervous system is commonly known to have a very limited regenerative capacity. The presence of functional stem cells in the brain can therefore be seen as a paradox, since in other organs these are known to counterbalance cell loss derived from pathological conditions. This fact has therefore raised the possibility to stimulate neural stem cell differentiation and proliferation or survival by either stem cell replacement therapy or direct administration of neurotrophic factors or other proneurogenic molecules, which in turn has also originated regenerative medicine for the treatment of otherwise incurable neurodegenerative and neuropsychiatric disorders that take a huge toll on society. This may be facilitated by the fact that many of these disorders converge on similar pathophysiological pathways: excitotoxicity, oxidative stress, neuroinflammation, mitochondrial failure, excessive intracellular calcium and apoptosis. This review will therefore focus on the most promising achievements in promoting neuroprotection and neuroregeneration reported to date.
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