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Ho MF, Zhang C, Moon I, Tuncturk M, Coombes BJ, Biernacka J, Skime M, Oesterle TS, Karpyak VM, Li H, Weinshilboum R. Molecular mechanisms involved in alcohol craving, IRF3, and endoplasmic reticulum stress: a multi-omics study. Transl Psychiatry 2024; 14:165. [PMID: 38531832 DOI: 10.1038/s41398-024-02880-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Revised: 03/13/2024] [Accepted: 03/15/2024] [Indexed: 03/28/2024] Open
Abstract
Alcohol use disorder (AUD) is the most prevalent substance use disorder worldwide. Acamprosate and naltrexone are anti-craving drugs used in AUD pharmacotherapy. However, molecular mechanisms underlying their anti-craving effect remain unclear. This study utilized a patient-derived induced pluripotent stem cell (iPSC)-based model system and anti-craving drugs that are used to treat AUD as "molecular probes" to identify possible mechanisms associated with alcohol craving. We examined the pathophysiology of craving and anti-craving drugs by performing functional genomics studies using iPSC-derived astrocytes and next-generation sequencing. Specifically, RNA sequencing performed using peripheral blood mononuclear cells from AUD patients with extreme values for alcohol craving intensity prior to treatment showed that inflammation-related pathways were highly associated with alcohol cravings. We then performed a genome-wide assessment of chromatin accessibility and gene expression profiles of induced iPSC-derived astrocytes in response to ethanol or anti-craving drugs. Those experiments identified drug-dependent epigenomic signatures, with IRF3 as the most significantly enriched motif in chromatin accessible regions. Furthermore, the activation of IRF3 was associated with ethanol-induced endoplasmic reticulum (ER) stress which could be attenuated by anti-craving drugs, suggesting that ER stress attenuation might be a target for anti-craving agents. In conclusion, we found that craving intensity was associated with alcohol consumption and treatment outcomes. Our functional genomic studies suggest possible relationships among craving, ER stress, IRF3 and the actions of anti-craving drugs.
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Affiliation(s)
- Ming-Fen Ho
- Department of Psychiatry and Psychology, Mayo Clinic, 200 First Street SW, Rochester, MN, 55905, USA.
- Department of Molecular Pharmacology and Experimental Therapeutics, Mayo Clinic, 200 First Street SW, Rochester, MN, 55905, USA.
| | - Cheng Zhang
- Department of Molecular Pharmacology and Experimental Therapeutics, Mayo Clinic, 200 First Street SW, Rochester, MN, 55905, USA
| | - Irene Moon
- Department of Molecular Pharmacology and Experimental Therapeutics, Mayo Clinic, 200 First Street SW, Rochester, MN, 55905, USA
| | - Mustafa Tuncturk
- Department of Psychiatry and Psychology, Mayo Clinic, 200 First Street SW, Rochester, MN, 55905, USA
| | - Brandon J Coombes
- Department of Health Sciences Research, Mayo Clinic, 200 First Street SW, Rochester, MN, 55905, USA
| | - Joanna Biernacka
- Department of Health Sciences Research, Mayo Clinic, 200 First Street SW, Rochester, MN, 55905, USA
| | - Michelle Skime
- Department of Psychiatry and Psychology, Mayo Clinic, 200 First Street SW, Rochester, MN, 55905, USA
| | - Tyler S Oesterle
- Department of Psychiatry and Psychology, Mayo Clinic, 200 First Street SW, Rochester, MN, 55905, USA
| | - Victor M Karpyak
- Department of Psychiatry and Psychology, Mayo Clinic, 200 First Street SW, Rochester, MN, 55905, USA
| | - Hu Li
- Department of Molecular Pharmacology and Experimental Therapeutics, Mayo Clinic, 200 First Street SW, Rochester, MN, 55905, USA
| | - Richard Weinshilboum
- Department of Molecular Pharmacology and Experimental Therapeutics, Mayo Clinic, 200 First Street SW, Rochester, MN, 55905, USA.
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Li WT, Huang XF, Deng C, Zhang BH, Qian K, He M, Sun TL. Olanzapine Induces Inflammation and Immune Response via Activating ER Stress in the Rat Prefrontal Cortex. Curr Med Sci 2021; 41:788-802. [PMID: 34403105 DOI: 10.1007/s11596-021-2401-7] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2020] [Accepted: 10/26/2020] [Indexed: 12/11/2022]
Abstract
OBJECTIVE Antipsychotics, in particular olanzapine, are first-line medications for schizophrenia. The prefrontal cortex (PFC) is an important region for antipsychotics' therapeutic effects. The PFC inflammatory and immune pathways are associated with schizophrenia pathogenesis. However, the effect of antipsychotics on the inflammatory and immune pathways in the PFC remains unclear. We aimed to examined the time-dependent effect of olanzapine on inflammatory and immune markers in the PFC of rats. Since the inflammatory and immune pathways are related to endoplasmic reticulum (ER) stress, we further investigated whether or not olanzapine-induced inflammation and immune responses were related to ER stress. METHODS Expression of pro-inflammatory markers including IkappaB kinase β (IKKβ), nuclear factor kappa B (NFκB), tumor necrosis factor α (TNF-α), interleukin-6 (IL-6) and IL-1β, and immune-related proteins including inducible nitric oxide synthase (iNOS), toll-like receptor 2 (TLR2) and cluster of differentiation 14 (CD14) were examined by Western blotting. RESULTS Olanzapine treatments for 1, 8 and 36 days significantly activated the inflammatory IKKβ/NFκB signaling, and increased the expression of TNF-α, IL-6, IL-1β and immune-related proteins such as iNOS, TLR4 and CD14. Olanzapine treatment for 1 day, 8 and 36 days also induced ER stress in the PFC. Co-treatment with an ER stress inhibitor, 4-phenylbutyrate, inhibited olanzapine-induced inflammation and the immune response in the PFC. CONCLUSION These results suggested olanzapine exposure could be a factor that induces central inflammation and immunological abnormities in schizophrenia subjects. Olanzapine induces PFC inflammation and immune response, possibly via activating ER stress signaling.
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Affiliation(s)
- Wen-Ting Li
- School of Chemistry, Chemical Engineering and Life Sciences, Wuhan University of Technology, Wuhan, 430070, China
| | - Xu-Feng Huang
- Illawarra Health and Medical Research Institute and Centre for Translational Neuroscience, School of Medicine, University of Wollongong, Wollongong, NSW, 2522, Australia
| | - Chao Deng
- Illawarra Health and Medical Research Institute and Centre for Translational Neuroscience, School of Medicine, University of Wollongong, Wollongong, NSW, 2522, Australia
| | - Bao-Hua Zhang
- The National Clinical Research Center for Mental Disorders & Beijing Key Laboratory of Mental Disorders, Beijing Anding Hospital & the Advanced Innovation Center for Human Brain Protection, Capital Medical University, Beijing, 100069, China
| | - Kun Qian
- School of Chemistry, Chemical Engineering and Life Sciences, Wuhan University of Technology, Wuhan, 430070, China
| | - Meng He
- School of Chemistry, Chemical Engineering and Life Sciences, Wuhan University of Technology, Wuhan, 430070, China.
| | - Tao-Lei Sun
- School of Chemistry, Chemical Engineering and Life Sciences, Wuhan University of Technology, Wuhan, 430070, China.
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3
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Yang Q, Sui X, Cao J, Liu C, Zheng S, Bao M, Huang Y, Wu K. Effects of Exposure to Bisphenol A during Pregnancy on the Pup Testis Function. Int J Endocrinol 2019; 2019:6785289. [PMID: 31263496 PMCID: PMC6556354 DOI: 10.1155/2019/6785289] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/22/2019] [Accepted: 05/09/2019] [Indexed: 02/05/2023] Open
Abstract
Testosterone plays an important prenatal role in male testis development. Bisphenol A (BPA) exposure during pregnancy affects testosterone levels and germ cell apoptosis of male pups, but little information is available for the mechanism. The aim of the present study was to investigate the mechanism by which BPA alters testosterone levels and germ cell apoptosis. Pregnant female C57BL/6J mice, throughout gestation, had access to drinking water containing BPA at 5 and 50 μg/mL. Male pups were euthanized on postnatal days (PNDs) 1, 14, and 35. Relative to control, BPA exposure at 5 and 50 μg/ml decreased testosterone level, as measured by chemiluminescent immunoassay, on PND14. Real-time PCR indicated mRNA levels for steroidogenic acute regulatory protein (StAR), cholesterol side-chain cleavage enzyme (CYP11A1), and 3-β-hydroxysteroid dehydrogenase/△-5-4 isomerase (3β-HSD) were significantly lower in the BPA pups compared to control. Additionally, BPA increased the percentage of TUNEL-positive seminiferous tubules, decreased the mRNA level of Bcl-2, and increased Bax expression, indicative of increased apoptosis. These results suggest that BPA exposure in utero decreases the testosterone concentration by decreasing steroidogenic enzymes (StAR, CYP11A1, and 3β-HSD). Furthermore, BPA exposure increases the apoptosis of germ cells, which is associated with proapoptotic changes in the levels of Bcl-2 and Bax.
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Affiliation(s)
- Qingtao Yang
- Department of Preventive Medicine, Shantou University Medical College, Shantou 515041, Guangdong, China
- Department of Urology, the Second Affiliated Hospital of Shantou University Medical College, Shantou, 515041, Guangdong, China
| | - Xuxia Sui
- Department of Pathogenic Biology, Shantou University Medical College, Shantou, 515041, Guangdong, China
| | - Junjun Cao
- Department of Pathogenic Biology, Shantou University Medical College, Shantou, 515041, Guangdong, China
| | - Caixia Liu
- Department of Preventive Medicine, Shantou University Medical College, Shantou 515041, Guangdong, China
| | - Shukai Zheng
- Department of Preventive Medicine, Shantou University Medical College, Shantou 515041, Guangdong, China
| | - Mian Bao
- Department of Preventive Medicine, Shantou University Medical College, Shantou 515041, Guangdong, China
| | - Yuanni Huang
- Department of Preventive Medicine, Shantou University Medical College, Shantou 515041, Guangdong, China
| | - Kusheng Wu
- Department of Preventive Medicine, Shantou University Medical College, Shantou 515041, Guangdong, China
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Moslehi A, Hamidi-zad Z. Role of SREBPs in Liver Diseases: A Mini-review. J Clin Transl Hepatol 2018; 6:332-338. [PMID: 30271747 PMCID: PMC6160306 DOI: 10.14218/jcth.2017.00061] [Citation(s) in RCA: 96] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/18/2017] [Revised: 01/10/2018] [Accepted: 02/11/2018] [Indexed: 12/15/2022] Open
Abstract
Sterol regulator element binding proteins (SREBPs) are a family of transcription factors involved in the biogenesis of cholesterol, fatty acids and triglycerides. They also regulate physiological functions of many organs, such as thyroid, brain, heart, pancreas and hormone synthesis. Beside the physiological effects, SREBPs participate in some pathological processes, diabetes, endoplasmic reticulum stress, atherosclerosis and chronic kidney disease associated with SREBP expression changes. In the liver, SREBPs are involved in the pathogenesis of nonalcoholic fatty liver disease, nonalcoholic steatohepatitis, hepatitis and hepatic cancer. There are several SREBP inhibitors that have potential for treating obesity, diabetes and cancer. This review assesses the recent findings about the roles of SREBPs in the physiology of organs' function and pathogenesis of liver diseases.
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Affiliation(s)
- Azam Moslehi
- Department of Physiology, Cellular & Molecular Research Center, Qom University of Medical Sciences, Qom, Iran
| | - Zeinab Hamidi-zad
- Department of Physiology, Cellular & Molecular Research Center, Qom University of Medical Sciences, Qom, Iran
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Lie MRKL, van der Giessen J, Fuhler GM, de Lima A, Peppelenbosch MP, van der Ent C, van der Woude CJ. Low dose Naltrexone for induction of remission in inflammatory bowel disease patients. J Transl Med 2018. [PMID: 29523156 PMCID: PMC5845217 DOI: 10.1186/s12967-018-1427-5] [Citation(s) in RCA: 49] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
Abstract
BACKGROUND Around 30% of patients with inflammatory bowel disease (IBD) are refractory to current IBD drugs or relapse over time. Novel treatments are called for, and low dose Naltrexone (LDN) may provide a safe, easily accessible alternative treatment option for these patients. We investigated the potential of LDN to induce clinical response in therapy refractory IBD patients, and investigated its direct effects on epithelial barrier function. METHODS Patients not in remission and not responding to conventional therapy were offered to initiate LDN as a concomitant treatment. In total 47 IBD patients prescribed LDN were followed prospectively for 12 weeks. Where available, endoscopic remission data, serum and biopsies were collected. Further the effect of Naltrexone on wound healing (scratch assay), cytokine production and endoplasmic reticulum (ER) stress (GRP78 and CHOP western blot analysis, immunohistochemistry) were investigated in HCT116 and CACO2 intestinal epithelial cells, human IBD intestinal organoids and patient samples. RESULTS Low dose Naltrexone induced clinical improvement in 74.5%, and remission in 25.5% of patients. Naltrexone improved wound healing and reduced ER stress induced by Tunicamycin, lipopolysaccharide or bacteria in epithelial barriers. Inflamed mucosa from IBD patients showed high ER stress levels, which was reduced in patients treated with LDN. Cytokine levels in neither epithelial cells nor serum from IBD patients were affected. CONCLUSIONS Naltrexone directly improves epithelial barrier function by improving wound healing and reducing mucosal ER stress levels. Low dose Naltrexone treatment is effective and safe, and could be considered for the treatment of therapy refractory IBD patients.
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Affiliation(s)
- Mitchell R K L Lie
- Department of Gastroenterology and Hepatology, Erasmus MC-University Medical Centre Rotterdam, s Gravendijkwal 230, 3015 CE, Rotterdam, The Netherlands
| | - Janine van der Giessen
- Department of Gastroenterology and Hepatology, Erasmus MC-University Medical Centre Rotterdam, s Gravendijkwal 230, 3015 CE, Rotterdam, The Netherlands
| | - Gwenny M Fuhler
- Department of Gastroenterology and Hepatology, Erasmus MC-University Medical Centre Rotterdam, s Gravendijkwal 230, 3015 CE, Rotterdam, The Netherlands
| | - Alison de Lima
- Department of Gastroenterology and Hepatology, Erasmus MC-University Medical Centre Rotterdam, s Gravendijkwal 230, 3015 CE, Rotterdam, The Netherlands
| | - Maikel P Peppelenbosch
- Department of Gastroenterology and Hepatology, Erasmus MC-University Medical Centre Rotterdam, s Gravendijkwal 230, 3015 CE, Rotterdam, The Netherlands
| | - Cokkie van der Ent
- Department of Gastroenterology and Hepatology, Erasmus MC-University Medical Centre Rotterdam, s Gravendijkwal 230, 3015 CE, Rotterdam, The Netherlands
| | - C Janneke van der Woude
- Department of Gastroenterology and Hepatology, Erasmus MC-University Medical Centre Rotterdam, s Gravendijkwal 230, 3015 CE, Rotterdam, The Netherlands.
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Moslehi A, Farahabadi M, Chavoshzadeh SA, Barati A, Ababzadeh S, Mohammadbeigi A. The Effect of Amygdalin on Endoplasmic Reticulum (ER) Stress Induced Hepatic Steatosis in Mice. Malays J Med Sci 2018; 25:16-23. [PMID: 29599631 DOI: 10.21315/mjms2018.25.1.3] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2017] [Accepted: 11/18/2017] [Indexed: 12/22/2022] Open
Abstract
Background Endoplasmic reticulum (ER) stress creates abnormalities in the insulin action, inflammatory responses, lipoprotein B100 degradation, and hepatic lipogenesis. Hepatic steatosis leads to a broad spectrum of hepatic disorders such as nonalcoholic fatty liver disease (NAFLD) and NASH. Amygdalin has beneficial effects on asthma, bronchitis, diabetes, and atherosclerosis. We designed this study to evaluate the effect of amygdalin on the ER stress induced hepatic steatosis. Methods Inbred mice received saline, DMSO and amygdalin, as control groups. ER stress was induced by tunicamycin (TM) injection. Amygdalin was administered 1 h before the TM challenge (Amy + TM group). Mice body and liver weights were measured. Hematoxylin and eosin (H&E) and oil red O staining from liver tissue, were performed. Alanin aminotransferase (ALT), aspartate aminotransferase (AST), triglyceride and cholesterol levels were measured. Results Histological evaluation revealed that amygdalin was unable to decrease the TM induced liver steatosis; however, ALT and AST levels decreased [ALT: 35.33(2.15) U/L versus 92.33(6.66) U/L; (57.000, (50.63, 63.36), P < 0.001) and AST: 93(5.09) U/L versus 345(97.3) U/L, (252, (163.37, 340.62), P < 0.001)]. Amygdalin also decreased triglyceride and cholesterol plasma levels in the Amy + TM group [TG: 42.66(2.15) versus 53.33(7.24) mg/dL; (10.67, (3.80, 17.54), P = 0.006) and TC: 9.33(3.55) versus 112.66(4.31) mg/dL, (103.33, (98.25, 108.40) P < 0.001)]. Conclusion Amygdalin improved the ALT, AST, and lipid serum levels after the TM challenge; however, it could not attenuate hepatic steatosis.
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Affiliation(s)
- Azam Moslehi
- Cellular& Molecular Research Center, Qom University of Medical Sciences, Qom, Iran
| | - Mohsen Farahabadi
- BSC of Operating Room, Qom University of Medical Sciences, Qom, Iran
| | | | - Akram Barati
- BSC of Nursing, Qom University of Medical Sciences, Qom, Iran
| | - Shima Ababzadeh
- Cellular& Molecular Research Center, Qom University of Medical Sciences, Qom, Iran
| | - Abolfazl Mohammadbeigi
- Research Center for Environmental Pollutants, Qom University of Medical Sciences, Qom, Iran
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Moore CF, Schlain GS, Mancino S, Sabino V, Cottone P. A behavioral and pharmacological characterization of palatable diet alternation in mice. Pharmacol Biochem Behav 2017; 163:1-8. [PMID: 29097161 PMCID: PMC5911178 DOI: 10.1016/j.pbb.2017.10.013] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/13/2017] [Revised: 10/09/2017] [Accepted: 10/29/2017] [Indexed: 12/28/2022]
Abstract
Obesity and eating disorders are widespread in Western societies. Both the increased availability of highly palatable foods and dieting are major risk factors contributing to the epidemic of disorders of feeding. The purpose of this study was to characterize an animal model of maladaptive feeding induced by intermittent access to a palatable diet alternation in mice. In this study, mice were either continuously provided with standard chow food (Chow/Chow), or provided with standard chow for 2days and a high-sucrose, palatable food for 1day (Chow/Palatable). Following stability of intake within the cycling paradigm, we then investigated the effects of several pharmacological treatments on excessive eating of palatable food: naltrexone, an opioid receptor antagonist, SR141716A, a cannabinoid-1 receptor antagonist/inverse agonist, and BD-1063, a sigma-1 receptor antagonist. Over successive cycles, Chow/Palatable mice showed an escalation of palatable food intake within the first hour of renewed access to palatable diet and displayed hypophagia upon its removal. Naltrexone, SR141716A, and BD-1063 all reduced overconsumption of palatable food during this first hour. Here we provide evidence of strong face and convergent validity in a palatable diet alternation model in mice, confirming multiple shared underlying mechanisms of pathological eating across species, and thus making it a useful therapeutic development tool.
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Affiliation(s)
- Catherine F Moore
- Laboratory of Addictive Disorders, Departments of Pharmacology and Experimental Therapeutics and Psychiatry, Boston University School of Medicine, Boston, MA, USA; Graduate Program for Neuroscience, Boston University School of Medicine, Boston, MA, USA
| | - Gabrielle S Schlain
- Laboratory of Addictive Disorders, Departments of Pharmacology and Experimental Therapeutics and Psychiatry, Boston University School of Medicine, Boston, MA, USA
| | - Samantha Mancino
- Laboratory of Addictive Disorders, Departments of Pharmacology and Experimental Therapeutics and Psychiatry, Boston University School of Medicine, Boston, MA, USA
| | - Valentina Sabino
- Laboratory of Addictive Disorders, Departments of Pharmacology and Experimental Therapeutics and Psychiatry, Boston University School of Medicine, Boston, MA, USA
| | - Pietro Cottone
- Laboratory of Addictive Disorders, Departments of Pharmacology and Experimental Therapeutics and Psychiatry, Boston University School of Medicine, Boston, MA, USA.
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Moslehi A, Nabavizadeh F, Zekri A, Amiri F. Naltrexone changes the expression of lipid metabolism-related proteins in the endoplasmic reticulum stress induced hepatic steatosis in mice. Clin Exp Pharmacol Physiol 2017; 44:207-212. [PMID: 27813192 DOI: 10.1111/1440-1681.12695] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2016] [Revised: 10/30/2016] [Accepted: 10/30/2016] [Indexed: 12/11/2022]
Abstract
Endoplasmic reticulum (ER) stress is closely associated with several chronic diseases such as obesity, atherosclerosis, type 2 diabetes, and hepatic steatosis. Steatosis in hepatocytes may also lead to disorders such as nonalcoholic fatty liver disease (NAFLD) and nonalcoholic steatohepatitis (NASH), fibrosis, and possibly cirrhosis. Opioid peptides are involved in triglyceride and cholesterol dysregulation. Naltrexone also attenuates ER stress induced hepatic steatosis in mice. In this study, we evaluated the effects of naltrexone on the expression of lipid metabolism-related nuclear factors and enzymes in the ER stress induced hepatic steatosis. C57/BL6 mice received saline, DMSO and naltrexone as control groups. In a fourth group, ER stress was induced by tunicamycin (TM) injection and in the last group, naltrexone was given before TM administration. Histopathological evaluations, real-time RT-PCR and western blot were performed. We found that GRP78, IRE1α, PERK and ATF6 gene expression and steatosis significantly reduced in naltrexone treated animals. Naltrexone alleviated the gene and protein expression of SREBP1c. Expression of ACAT1, apolipoprotein B (ApoB) and PPARα also increased after naltrexone treatment. In conclusion, this study, for the first time, shows that naltrexone has a considerable role in attenuation of ER stress-induced liver injury.
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Affiliation(s)
- Azam Moslehi
- Cellular& Molecular Research Center, Qom University of Medical Sciences, Qom, Iran
| | - Fatemeh Nabavizadeh
- Department of Physiology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Ali Zekri
- Department of Medical Genetics and Molecular Biology, Faculty of Medicine, Iran University of Medical Sciences (IUMS), Tehran, Iran.,Physiology Research Center, Iran University of Medical Sciences (IUMS), Tehran, Iran
| | - Fatemeh Amiri
- Physiology Research Center, Iran University of Medical Sciences (IUMS), Tehran, Iran.,Blood Transfusion Research Center, High Institute for Research and Education in Transfusion Medicine, Tehran, Iran
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Cosa A, Moreno A, Pacheco-Torres J, Ciccocioppo R, Hyytiä P, Sommer WH, Moratal D, Canals S. Multi-modal MRI classifiers identify excessive alcohol consumption and treatment effects in the brain. Addict Biol 2017; 22:1459-1472. [PMID: 27273582 DOI: 10.1111/adb.12418] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2015] [Revised: 04/22/2016] [Accepted: 05/13/2016] [Indexed: 12/14/2022]
Abstract
Robust neuroimaging markers of neuropsychiatric disorders have proven difficult to obtain. In alcohol use disorders, profound brain structural deficits can be found in severe alcoholic patients, but the heterogeneity of unimodal MRI measurements has so far precluded the identification of selective biomarkers, especially for early diagnosis. In the present work we used a combination of multiple MRI modalities to provide comprehensive and insightful descriptions of brain tissue microstructure. We performed a longitudinal experiment using Marchigian-Sardinian (msP) rats, an established model of chronic excessive alcohol consumption, and acquired multi-modal images before and after 1 month of alcohol consumption (6.8 ± 1.4 g/kg/day, mean ± SD), as well as after 1 week of abstinence with or without concomitant treatment with the antirelapse opioid antagonist naltrexone (2.5 mg/kg/day). We found remarkable sensitivity and selectivity to accurately classify brains affected by alcohol even after the relative short exposure period. One month drinking was enough to imprint a highly specific signature of alcohol consumption. Brain alterations were regionally specific and affected both gray and white matter and persisted into the early abstinence state without any detectable recovery. Interestingly, naltrexone treatment during early abstinence resulted in subtle brain changes that could be distinguished from non-treated abstinent brains, suggesting the existence of an intermediate state associated with brain recovery from alcohol exposure induced by medication. The presented framework is a promising tool for the development of biomarkers for clinical diagnosis of alcohol use disorders, with capacity to further inform about its progression and response to treatment.
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Affiliation(s)
- Alejandro Cosa
- Instituto de Neurociencias; Consejo Superior de Investigaciones Científicas and Universidad Miguel Hernández; Sant Joan d'Alacant Spain
- Center for Biomaterials and Tissue Engineering; Universitat Politècnica de València; Valencia Spain
| | - Andrea Moreno
- Instituto de Neurociencias; Consejo Superior de Investigaciones Científicas and Universidad Miguel Hernández; Sant Joan d'Alacant Spain
| | - Jesús Pacheco-Torres
- Instituto de Neurociencias; Consejo Superior de Investigaciones Científicas and Universidad Miguel Hernández; Sant Joan d'Alacant Spain
| | | | - Petri Hyytiä
- Department of Pharmacology, Faculty of Medicine; University of Helsinki; Helsinki Finland
| | - Wolfgang H. Sommer
- Department of Psychopharmacology, Central Institute of Mental Health; University of Heidelberg; Mannheim Germany
| | - David Moratal
- Center for Biomaterials and Tissue Engineering; Universitat Politècnica de València; Valencia Spain
| | - Santiago Canals
- Instituto de Neurociencias; Consejo Superior de Investigaciones Científicas and Universidad Miguel Hernández; Sant Joan d'Alacant Spain
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Abstract
This paper is the thirty-seventh consecutive installment of the annual review of research concerning the endogenous opioid system. It summarizes papers published during 2014 that studied the behavioral effects of molecular, pharmacological and genetic manipulation of opioid peptides, opioid receptors, opioid agonists and opioid antagonists. The particular topics that continue to be covered include the molecular-biochemical effects and neurochemical localization studies of endogenous opioids and their receptors related to behavior (endogenous opioids and receptors), and the roles of these opioid peptides and receptors in pain and analgesia (pain and analgesia); stress and social status (human studies); tolerance and dependence (opioid mediation of other analgesic responses); learning and memory (stress and social status); eating and drinking (stress-induced analgesia); alcohol and drugs of abuse (emotional responses in opioid-mediated behaviors); sexual activity and hormones, pregnancy, development and endocrinology (opioid involvement in stress response regulation); mental illness and mood (tolerance and dependence); seizures and neurologic disorders (learning and memory); electrical-related activity and neurophysiology (opiates and conditioned place preferences (CPP)); general activity and locomotion (eating and drinking); gastrointestinal, renal and hepatic functions (alcohol and drugs of abuse); cardiovascular responses (opiates and ethanol); respiration and thermoregulation (opiates and THC); and immunological responses (opiates and stimulants). This paper is the thirty-seventh consecutive installment of the annual review of research concerning the endogenous opioid system. It summarizes papers published during 2014 that studied the behavioral effects of molecular, pharmacological and genetic manipulation of opioid peptides, opioid receptors, opioid agonists and opioid antagonists. The particular topics that continue to be covered include the molecular-biochemical effects and neurochemical localization studies of endogenous opioids and their receptors related to behavior (endogenous opioids and receptors), and the roles of these opioid peptides and receptors in pain and analgesia (pain and analgesia); stress and social status (human studies); tolerance and dependence (opioid mediation of other analgesic responses); learning and memory (stress and social status); eating and drinking (stress-induced analgesia); alcohol and drugs of abuse (emotional responses in opioid-mediated behaviors); sexual activity and hormones, pregnancy, development and endocrinology (opioid involvement in stress response regulation); mental illness and mood (tolerance and dependence); seizures and neurologic disorders (learning and memory); electrical-related activity and neurophysiology (opiates and conditioned place preferences (CPP)); general activity and locomotion (eating and drinking); gastrointestinal, renal and hepatic functions (alcohol and drugs of abuse); cardiovascular responses (opiates and ethanol); respiration and thermoregulation (opiates and THC); and immunological responses (opiates and stimulants).
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Affiliation(s)
- Richard J Bodnar
- Department of Psychology and Neuropsychology Doctoral Sub-Program, Queens College, City University of New York, Flushing, NY 11367, United States.
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Endoplasmic reticulum stress signaling in mammalian oocytes and embryos: life in balance. INTERNATIONAL REVIEW OF CELL AND MOLECULAR BIOLOGY 2015; 316:227-65. [PMID: 25805126 DOI: 10.1016/bs.ircmb.2015.01.005] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Mammalian oocytes and embryos are exquisitely sensitive to a wide range of insults related to physical stress, chemical exposure, and exposures to adverse maternal nutrition or health status. Although cells manifest specific responses to various stressors, many of these stressors intersect at the endoplasmic reticulum (ER), where disruptions in protein folding and production of reactive oxygen species initiate downstream signaling events. These signals modulate mRNA translation and gene transcription, leading to recovery, activation of autophagy, or with severe and prolonged stress, apoptosis. ER stress signaling has recently come to the fore as a major contributor to embryo demise. Accordingly, agents that modulate or inhibit ER stress signaling have yielded beneficial effects on embryo survival and long-term developmental potential. We review here the mechanisms of ER stress signaling, their connections to mammalian oocytes and embryos, and the promising indications that interventions in this pathway may provide new opportunities for improving mammalian reproduction and health.
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