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Mandlem VKK, Rivera A, Khan Z, Quazi SH, Deba F. TLR4 induced TRPM2 mediated neuropathic pain. Front Pharmacol 2024; 15:1472771. [PMID: 39329114 PMCID: PMC11424904 DOI: 10.3389/fphar.2024.1472771] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2024] [Accepted: 09/02/2024] [Indexed: 09/28/2024] Open
Abstract
Ion channels play an important role in mediating pain through signal transduction, regulation, and control of responses, particularly in neuropathic pain. Transient receptor potential channel superfamily plays an important role in cation permeability and cellular signaling. Transient receptor potential channel Melastatin 2 (TRPM2) subfamily regulates Ca2+ concentration in response to various chemicals and signals from the surrounding environment. TRPM2 has a role in several physiological functions such as cellular osmosis, temperature sensing, cellular proliferation, as well as the manifestation of many disease processes such as pain process, cancer, apoptosis, endothelial dysfunction, angiogenesis, renal and lung fibrosis, and cerebral ischemic stroke. Toll-like Receptor 4 (TLR4) is a critical initiator of the immune response to inflammatory stimuli, particularly those triggered by Lipopolysaccharide (LPS). It activates downstream pathways leading to the production of oxidative molecules and inflammatory cytokines, which are modulated by basal and store-operated calcium ion signaling. The cytokine production and release cause an imbalance of antioxidant enzymes and redox potential in the Endoplasmic Reticulum and mitochondria due to oxidative stress, which results from TLR-4 activation and consequently induces the production of inflammatory cytokines in neuronal cells, exacerbating the pain process. Very few studies have reported the role of TRPM2 and its association with Toll-like receptors in the context of neuropathic pain. However, the molecular mechanism underlying the interaction between TRPM2 and TLR-4 and the quantum of impact in acute and chronic neuropathic pain remains unclear. Understanding the link between TLR-4 and TRPM2 will provide more insights into pain regulation mechanisms for the development of new therapeutic molecules to address neuropathic pain.
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Affiliation(s)
- Venkata Kiran Kumar Mandlem
- Departmental of Pharmaceutical Sciences and Health Outcomes, The Ben and Maytee Fisch College of Pharmacy, University of Texas at Tyler, Tyler, TX, United States
| | - Ana Rivera
- Departmental of Pharmaceutical Sciences and Health Outcomes, The Ben and Maytee Fisch College of Pharmacy, University of Texas at Tyler, Tyler, TX, United States
| | - Zaina Khan
- Departmental of Pharmaceutical Sciences and Health Outcomes, The Ben and Maytee Fisch College of Pharmacy, University of Texas at Tyler, Tyler, TX, United States
- Departmental of Neuroscience, University of Texas at Dallas, Richardson, TX, United States
| | - Sohel H. Quazi
- Departmental of Pharmaceutical Sciences and Health Outcomes, The Ben and Maytee Fisch College of Pharmacy, University of Texas at Tyler, Tyler, TX, United States
- Department of Biology, Division of Natural and Computation Sciences, Texas College, Tyler, TX, United States
| | - Farah Deba
- Departmental of Pharmaceutical Sciences and Health Outcomes, The Ben and Maytee Fisch College of Pharmacy, University of Texas at Tyler, Tyler, TX, United States
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Medrano-Padial C, Pérez-Novas I, Domínguez-Perles R, García-Viguera C, Medina S. Bioaccessible Phenolic Alkyl Esters of Wine Lees Decrease COX-2-Catalyzed Lipid Mediators of Oxidative Stress and Inflammation in a Time-Dependent Manner. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:19016-19027. [PMID: 39145698 PMCID: PMC11363137 DOI: 10.1021/acs.jafc.4c05086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/10/2024] [Revised: 08/06/2024] [Accepted: 08/09/2024] [Indexed: 08/16/2024]
Abstract
Lipophenols, phenolic compounds esterified with fatty alcohols or fatty acids, provide greater health benefits upon dietary ingestion of plant-based foods than unesterified (poly)phenols. Based on this premise, the present study aimed to demonstrate the role of gastrointestinal enzymes (pepsin, pancreatin, and pancreatic lipase) in releasing alkyl gallates and trans-caffeates from wine lees, providing bioactive compounds with enhanced capacities against oxidative stress (OS) and para-inflammation. The UHPLC-ESI-QqQ-MS/MS-based analysis revealed ethyl gallate and ethyl trans-caffeate as the most prominent compounds (1.675 and 0.872 μg/g dw, respectively), while the bioaccessibility of the derivatives of gallic and caffeic acids was dependent on the alkyl chain properties. The de novo formation of alkyl gallates during gastric and intestinal digestion resulted from intestinal enzyme activity. Moreover, the in vitro capacity of bioaccessible alkyl esters of gallic and trans-caffeic acids to reduce cyclooxygenase-2 concentration and modulate oxilipins related to OS (8-iso-PGF2α) and inflammation (PGF2α and PGE2) was demonstrated in a time-dependent manner. In conclusion, the presence of alkyl esters of gallic and trans-caffeic acids in wine lees and their subsequent formation during digestion of this byproduct emphasize their value as a source of antioxidant and anti-inflammatory compounds, encouraging the consideration of wine lees as a valuable ingredient for health-promoting coproducts.
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Affiliation(s)
- Concepción Medrano-Padial
- Laboratorio de Fitoquímica
y Alimentos Saludables (LabFAS), CSIC, CEBAS, Campus Universitario de Espinardo
25, 30100 Espinardo, Murcia, Spain
| | - Irene Pérez-Novas
- Laboratorio de Fitoquímica
y Alimentos Saludables (LabFAS), CSIC, CEBAS, Campus Universitario de Espinardo
25, 30100 Espinardo, Murcia, Spain
| | - Raúl Domínguez-Perles
- Laboratorio de Fitoquímica
y Alimentos Saludables (LabFAS), CSIC, CEBAS, Campus Universitario de Espinardo
25, 30100 Espinardo, Murcia, Spain
| | - Cristina García-Viguera
- Laboratorio de Fitoquímica
y Alimentos Saludables (LabFAS), CSIC, CEBAS, Campus Universitario de Espinardo
25, 30100 Espinardo, Murcia, Spain
| | - Sonia Medina
- Laboratorio de Fitoquímica
y Alimentos Saludables (LabFAS), CSIC, CEBAS, Campus Universitario de Espinardo
25, 30100 Espinardo, Murcia, Spain
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Mu K, Kitts DD. Gallic acid mitigates intestinal inflammation and loss of tight junction protein expression using a 2D-Caco-2 and RAW 264.7 co-culture model. Arch Biochem Biophys 2024; 756:109978. [PMID: 38636693 DOI: 10.1016/j.abb.2024.109978] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2024] [Accepted: 03/24/2024] [Indexed: 04/20/2024]
Abstract
A 2D-intestinal epithelial Caco-2/RAW 264.7 macrophage co-culture model was developed to demonstrate the relative efficacy of different phenolic acids to mitigate changes in Caco-2 epithelial cell redox state initiated both directly by autoxidation products, H2O2, and indirectly through cell communication events originating from cytokine stimulated macrophage. An inducer cocktail (lipopolysaccharide + interferon gamma) was used to activate RAW 264.7 cells in the 2D- Caco-2/RAW co-culture and intracellular changes in Caco-2 cell redox signaling occurred in response to positive changes (p < 0.05) in inflammatory biomarkers derived in macrophage that included IL-6, TNF-α, nitric oxide and peroxynitrite, respectively. Phenolic acids varied in relative capacity to reduce NF-κB (nuclear factor kappa-light-chain-enhancer of activated B cells) in cocktail inflamed induced macrophage. This response in addition to the relative predisposition of gallic acid (GA) to undergo autoxidation to generate H2O2 activity (p < 0.05), culminated in downstream cell signaling in Caco-2 nuclear factor erythroid 2-related factor (Nrf2) activity (increase 26.9 %), altered monolayer integrity (increase 33.7 %), and release of interleukin 8 (IL-8) (decrease 80.5 %) (p < 0.05). It can be concluded that the co-culture model described herein was useful to assess the importance of communication between cytokine stimulated macrophage and intestinal cells. Moreover, the relative unique efficacy of GA, compared to other phenolic acids tested to protect against activated macrophage induced changes related to intestinal dysfunction were particularly relevant to epithelial redox signaling, intestinal permeability and regulation of tight junction proteins. This study concludes that phenolic acids are not equal in the capacity to protect against intestinal cell dysfunction despite some indication of biological activity.
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Affiliation(s)
- Kaiwen Mu
- Food Nutrition and Health Program, Faculty of Land and Food Systems, The University of British Columbia, 2205 East Mall, Vancouver, V6T-1Z4, B.C, Canada
| | - David D Kitts
- Food Nutrition and Health Program, Faculty of Land and Food Systems, The University of British Columbia, 2205 East Mall, Vancouver, V6T-1Z4, B.C, Canada.
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Yap SH, Lee CS, Zulkifli ND, Suresh D, Hamase K, Das KT, Rajasuriar R, Leong KH. D-Amino acids differentially trigger an inflammatory environment in vitro. Amino Acids 2024; 56:6. [PMID: 38310167 PMCID: PMC10838247 DOI: 10.1007/s00726-023-03360-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Accepted: 12/20/2023] [Indexed: 02/05/2024]
Abstract
Studies in vivo have demonstrated that the accumulation of D-amino acids (D-AAs) is associated with age-related diseases and increased immune activation. However, the underlying mechanism(s) of these observations are not well defined. The metabolism of D-AAs by D-amino oxidase (DAO) produces hydrogen peroxide (H2O2), a reactive oxygen species involved in several physiological processes including immune response, cell differentiation, and proliferation. Excessive levels of H2O2 contribute to oxidative stress and eventual cell death, a characteristic of age-related pathology. Here, we explored the molecular mechanisms of D-serine (D-Ser) and D-alanine (D-Ala) in human liver cancer cells, HepG2, with a focus on the production of H2O2 the downstream secretion of pro-inflammatory cytokine and chemokine, and subsequent cell death. In HepG2 cells, we demonstrated that D-Ser decreased H2O2 production and induced concentration-dependent depolarization of mitochondrial membrane potential (MMP). This was associated with the upregulation of activated NF-кB, pro-inflammatory cytokine, TNF-α, and chemokine, IL-8 secretion, and subsequent apoptosis. Conversely, D-Ala-treated cells induced H2O2 production, and were also accompanied by the upregulation of activated NF-кB, TNF-α, and IL-8, but did not cause significant apoptosis. The present study confirms the role of both D-Ser and D-Ala in inducing inflammatory responses, but each via unique activation pathways. This response was associated with apoptotic cell death only with D-Ser. Further research is required to gain a better understanding of the mechanisms underlying D-AA-induced inflammation and its downstream consequences, especially in the context of aging given the wide detection of these entities in systemic circulation.
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Affiliation(s)
- Siew Hwei Yap
- Centre of Excellence for Research in AIDS (CERiA), Universiti Malaya, Kuala Lumpur, Malaysia
- Department of Medicine, Faculty of Medicine, Universiti Malaya, Kuala Lumpur, Malaysia
| | - Cheng Siang Lee
- Centre of Excellence for Research in AIDS (CERiA), Universiti Malaya, Kuala Lumpur, Malaysia
| | - Nur Diyana Zulkifli
- Department of Biomedical Sciences, Advanced Medical and Dental Institute, Universiti Sains Malaysia, Kepala Batas, Malaysia
| | - Darshinie Suresh
- Department of Biomedical Sciences, Advanced Medical and Dental Institute, Universiti Sains Malaysia, Kepala Batas, Malaysia
- Department of Biological Sciences and Biotechnology, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, Bangi, Malaysia
| | - Kenji Hamase
- Graduate School of Pharmaceutical Sciences, Kyushu University, Fukuoka, Japan
| | - Kumitaa Theva Das
- Department of Biomedical Sciences, Advanced Medical and Dental Institute, Universiti Sains Malaysia, Kepala Batas, Malaysia
| | - Reena Rajasuriar
- Centre of Excellence for Research in AIDS (CERiA), Universiti Malaya, Kuala Lumpur, Malaysia
- Department of Medicine, Faculty of Medicine, Universiti Malaya, Kuala Lumpur, Malaysia
- Peter Doherty Institute for Infection and Immunity, Melbourne University, Melbourne, VIC, Australia
| | - Kok Hoong Leong
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Universiti Malaya, Kuala Lumpur, Malaysia.
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Driscoll DF, Welty FK, Bistrian BR. Omega-3 Fatty Acids as Antiarrhythmic Drugs: Upstream Target Modulators Affecting Acute and Long-Term Pathological Alterations in Cardiac Structure and Function. Crit Care Explor 2023; 5:e0977. [PMID: 37753235 PMCID: PMC10519500 DOI: 10.1097/cce.0000000000000977] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/28/2023] Open
Abstract
OBJECTIVES Postoperative atrial fibrillation (POAF) is a common complication in the acute care period following coronary artery bypass grafting (CABG) surgery that is associated with significant morbidity and mortality in both short-term and long-term settings. Recently, the Vaughn Williams Classification of antiarrhythmic agents, first proposed in 1975 and widely viewed as the authoritative description of their electrophysiologic actions, was updated and notably omega-3 fatty acids (Ω-3 fatty acids) have been included in class VII, described as "upstream target modulators," to mitigate pathological structural and electrophysiological remodeling changes in the aged and/or injured myocardium. DATA SOURCES A PubMed literature search was performed. STUDY SELECTION Studies examining the significance of complications in patients undergoing isolated CABG surgery were selected for inclusion. DATA EXTRACTION Relevant data were qualitatively assessed and narratively summarized. DATA SYNTHESIS POAF occurs in approximately 30% of patients, and inflammation from chronic coronary artery disease preoperatively, as well as acute atrial inflammation from surgery postoperatively are the leading causes. Inflammation underlies its pathophysiology; therefore Ω-3 fatty acids not only exhibit antiarrhythmic properties but are an effective anti-inflammatory treatment that may reduce the clinical risks of POAF. CONCLUSIONS At present no effective prophylaxis is available to address POAF following CABG surgery. Clinical approaches that focus on the inflammatory response in this setting may optimize the response to treatment. The current literature supports the hypothesis that Ω-3 fatty acids may acutely reduce the inflammatory response via favorable alterations in the metabolism of prostaglandins and leukotrienes (eicosanoids) and specialized pro-resolving mediators.
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Affiliation(s)
- David F Driscoll
- Stable Solutions LLC, Easton MA
- Department of Medicine, UMASS Chan Medical School, Worcester, MA
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6
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Driscoll DF. Proinflammatory mediators in lipid emulsions and parenteral nutrition-associated liver disease: Review of leading factors. JPEN J Parenter Enteral Nutr 2023; 47:710-717. [PMID: 37070817 DOI: 10.1002/jpen.2507] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2023] [Revised: 03/24/2023] [Accepted: 04/13/2023] [Indexed: 04/19/2023]
Abstract
Lipid injectable emulsions have been in clinical use for over 60 years. The first product launched was Intralipid, which consisted of an emulsion of soybean oil in water for intravenous administration. It was a key source of essential fatty acids and an alternative source of energy for patients with gastrointestinal dysfunction requiring long-term parenteral nutrition. With clinical experience, a condition known as parenteral nutrition-associated liver disease (PNALD), or intestinal failure-associated liver disease (IFALD), was observed, with a focus on carbohydrate and fat energy. Modifying the daily doses and infusion rates had some salutary effects, but PNALD persisted. Subsequently, on closer inspection of the fatty acids profile and phytosterol concentrations, degradation products arising from chemical and physical stability issues of the available lipid injectable emulsions were implicated. Recently, the US Food and Drug Administration convened an online workshop entitled "The Role of Phytosterols in PNALD/IFALD," with an emphasis on (1) the multifactorial pathophysiology of PNALD/IFALD, (2) risk associated with phytosterols, and (3) regulatory history. The scope of this review includes the multifactorial pathophysiology of PNALD/IFALD as it relates to the pharmaceutical aspects of the various lipid injectable emulsions on the market, with respect to potential proinflammatory components, as well as physical and chemical stability issues that may also affect products' safe intravenous administration to patients.
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Affiliation(s)
- David F Driscoll
- Stable Solutions LLC, Massachusetts, South Easton, USA
- Department of Medicine, UMASS T.H. Chan School of Medicine, Worcester, Massachusetts, USA
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Wang K, Moore A, Grayson C, Mailloux RJ. S-nitroso-glutathione (GSNO) inhibits hydrogen peroxide production by alpha-ketoglutarate dehydrogenase: An investigation into sex and diet effects. Free Radic Biol Med 2023; 204:287-300. [PMID: 37225107 DOI: 10.1016/j.freeradbiomed.2023.05.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Revised: 05/06/2023] [Accepted: 05/11/2023] [Indexed: 05/26/2023]
Abstract
Pyruvate dehydrogenase (PDH) and α-ketoglutarate dehydrogenase (KGDH) are vital sources of hydrogen peroxide (H2O2) and key sites for redox regulation. Here, we report KGDH is more sensitive to inhibition by S-nitroso-glutathione (GSNO) when compared to PDH and deactivation of both enzymes by nitro modification is affected by sex and diet. Liver mitochondria from male C57BL/6N mice displayed a robust inhibition of H2O2 production after exposure to 500-2000 μM GSNO. H2O2 genesis by PDH was not significantly affected by GSNO. Purified KGDH of porcine heart origin displayed a ∼82% decrease in H2O2 generating activity at 500 μM GSNO, which was mirrored by a decrease in NADH production. By contrast, H2O2- and NADH-producing activity of purified PDH was only minimally affected by an incubation in 500 μM GSNO. Incubations in GSNO had no significant effect on the H2O2-generating activity of KGDH and PDH in female liver mitochondria when compared to samples collected from males, which was attributed to higher GSNO reductase (GSNOR) activity. High fat feeding augmented the GSNO-mediated inhibition of KGDH in liver mitochondria from male mice. Exposure of male mice to a HFD also resulted in a significant decrease in the GSNO-mediated inhibition of H2O2 genesis by PDH, an effect not observed in mice fed a control-matched diet (CD). Female mice displayed higher resistance to the GSNO-induced inhibition of H2O2 production, regardless of being fed a CD or HFD. However, exposure to a HFD did result in a small but significant decrease in H2O2 production by KGDH and PDH when female liver mitochondria were treated with GSNO. Although, the effect was less when compared to their male counterparts. Collectively, we show for the first time GSNO deactivates H2O2 production by α-keto acid dehydrogenases and we demonstrate that sex and diet are determinants for the nitro-inhibition of both KGDH and PDH.
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Affiliation(s)
- Kevin Wang
- The School of Human Nutrition, Faculty of Agricultural and Environmental Sciences, McGill University, Ste.-Anne-de-Bellevue, Quebec, Canada
| | - Amanda Moore
- The School of Human Nutrition, Faculty of Agricultural and Environmental Sciences, McGill University, Ste.-Anne-de-Bellevue, Quebec, Canada
| | - Cathryn Grayson
- The School of Human Nutrition, Faculty of Agricultural and Environmental Sciences, McGill University, Ste.-Anne-de-Bellevue, Quebec, Canada
| | - Ryan J Mailloux
- The School of Human Nutrition, Faculty of Agricultural and Environmental Sciences, McGill University, Ste.-Anne-de-Bellevue, Quebec, Canada.
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Islam MT, Sarkar C, Hossain R, Bhuia MS, Mardare I, Kulbayeva M, Ydyrys A, Calina D, Habtemariam S, Kieliszek M, Sharifi-Rad J, Cho WC. Therapeutic strategies for rheumatic diseases and disorders: targeting redox imbalance and oxidative stress. Biomed Pharmacother 2023; 164:114900. [PMID: 37216707 DOI: 10.1016/j.biopha.2023.114900] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2023] [Revised: 05/08/2023] [Accepted: 05/16/2023] [Indexed: 05/24/2023] Open
Abstract
Rheumatic diseases and disorders (RDDs) are a group of chronic autoimmune diseases that are collectively called "multicausal diseases". They have resulted from predisposing genetic profiles and exposure to a range of environmental, occupational and lifestyle risk factors. Other causative factors include bacterial and viral attacks, sexual habits, trauma, etc. In addition, numerous studies reported that redox imbalance is one of the most serious consequences of RDDs. For example, rheumatoid arthritis (RA) as a classic example of chronic RDDs is linked to oxidative stress. This paper summarizes the contributions of redox imbalance to RDDs. The findings suggest that establishing direct or indirect therapeutic strategies for RDDs requires a more in-depth understanding of the redox dysregulation in these diseases. For example, the recent awareness of the roles of peroxiredoxins (Prdxs, e.g. Prdx2, Prdx3) in RDDs provided one potential route of therapeutic intervention of these pathologies. Changes in stressful lifestyles and dietary habits may also provide additional benefits in the management of RDDs. Future studies should be directed to explore molecular interactions in redox regulations associated with RDDS and potential therapeutic interventions.
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Affiliation(s)
- Muhammad Torequl Islam
- Department of Pharmacy, Bangabandhu Sheikh Mujibur Rahman Science and Technology University, Gopalganj 8100, Bangladesh.
| | - Chandan Sarkar
- Department of Pharmacy, Bangabandhu Sheikh Mujibur Rahman Science and Technology University, Gopalganj 8100, Bangladesh
| | - Rajib Hossain
- Department of Pharmacology, School of Medicine, Chungnam National University, Daejeon, South Korea
| | - Md Shimul Bhuia
- Department of Pharmacy, Bangabandhu Sheikh Mujibur Rahman Science and Technology University, Gopalganj 8100, Bangladesh
| | - Ileana Mardare
- Department of Public Health and Management, Carol Davila University of Medicine and Pharmacy of Bucharest, Bucharest, Romania
| | - Marzhan Kulbayeva
- Department of Biophysics, Biomedicine and Neuroscience, Al-Farabi Kazakh National University, Al-Farabi Av. 71, 050040 Almaty, Kazakhstan
| | - Alibek Ydyrys
- Biomedical Research Centre, Al-Farabi Kazakh National University, Al-Farabi ave. 71, 050040 Almaty, Kazakhstan
| | - Daniela Calina
- Department of Clinical Pharmacy, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania.
| | - Solomon Habtemariam
- Pharmacognosy Research & Herbal Analysis Services UK, University of Greenwich, Central Avenue, Chatham-Maritime, Kent ME4 4TB, UK
| | - Marek Kieliszek
- Department of Food Biotechnology and Microbiology, Institute of Food Sciences, Warsaw University of Life Sciences-SGGW, Nowoursynowska 159C, 02-776 Warsaw, Poland.
| | | | - William C Cho
- Department of Clinical Oncology, Queen Elizabeth Hospital, Kowloon, Hong Kong Special Administrative Region.
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Vaseenon S, Srisuwan T, Chattipakorn N, Chattipakorn SC. Lipopolysaccharides and hydrogen peroxide induce contrasting pathological conditions in dental pulpal cells. Int Endod J 2023; 56:179-192. [PMID: 36269677 DOI: 10.1111/iej.13853] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2021] [Revised: 10/17/2022] [Accepted: 10/18/2022] [Indexed: 01/17/2023]
Abstract
AIM To determine the effects of lipopolysaccharides (LPS), hydrogen peroxide (H2 O2 ), and both combined on cell proliferation/differentiation, inflammation, mitochondrial dynamics as indicated by mitochondrial fission/fusion, antioxidants as indicated by superoxide dismutase 2 (SOD2), and apoptosis of human dental pulpal cells (HDPCs). METHODOLOGY Pulpal tissues from eight healthy subjects (n = 8) were collected from Faculty of Dentistry, Chiang Mai University. Isolated HDPCs from healthy donors were divided into four experimental groups: vehicle, 20 μg/ml LPS, 400 μM H2 O2 , and the two combined. All experimental groups were investigated to assess cell proliferation, mineralization, differentiation, inflammation, mitochondrial dynamics, antioxidants, and apoptosis. RESULTS H2 O2 and combined agents decreased cell proliferation of HDPCs equally. LPS, H2 O2, and both combined decreased mineralization and differentiation with an increase in tumour necrosis factor-alpha (TNF-α) levels. Surprisingly, LPS and combined agents increased SOD2 expression and caused an imbalance in mitochondrial dynamics. A significant increase in apoptosis was observed in the case of H2 O2 and combined agents. CONCLUSIONS These findings suggest that LPS induced inflammation, imbalanced mitochondrial dynamics, and reduced cell differentiation without altering apoptosis and cell proliferation. However, H2 O2 decreased cell proliferation, and differentiation, and increased inflammation, and apoptosis without interfering with mitochondrial dynamics. Based on our findings, combining LPS and H2 O2 could be potentially used as the inducers in in vitro study to mimic the clinical pulpitis.
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Affiliation(s)
- Savitri Vaseenon
- Department of Restorative Dentistry and Periodontology, Faculty of Dentistry, Chiang Mai University, Chiang Mai, Thailand.,Neurophysiology Unit, Cardiac Electrophysiology Research and Training Center, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
| | - Tanida Srisuwan
- Department of Restorative Dentistry and Periodontology, Faculty of Dentistry, Chiang Mai University, Chiang Mai, Thailand
| | - Nipon Chattipakorn
- Neurophysiology Unit, Cardiac Electrophysiology Research and Training Center, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
| | - Siriporn C Chattipakorn
- Neurophysiology Unit, Cardiac Electrophysiology Research and Training Center, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand.,Department of Oral Biology and Diagnostic Sciences, Faculty of Dentistry, Chiang Mai University, Chiang Mai, Thailand
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10
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Afzal S, Zhou X, Or K, Raju R, Münch G. Identification of Nrf2 Activators from the Roots of Valeriana officinalis. PLANTA MEDICA 2023; 89:30-45. [PMID: 35764305 DOI: 10.1055/a-1887-2016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Various age-related chronic diseases have been linked to oxidative stress. The cellular antioxidant response pathway is regulated by the transcription factor nuclear erythroid factor 2. Therefore, plant-derived nuclear erythroid factor 2 activators might be useful therapeutics to stimulate the body's defense mechanisms. Our study focused on the discovery of potent nuclear erythroid factor 2 activators from medicinal plants. Initially, a variety of medicinal plant extracts were screened for nuclear erythroid factor 2 activity using a nuclear erythroid factor 2 luciferase reporter cell line. Among these, Valerian (Valeriana officinalis) root was identified as a potent candidate. Sequential extraction and bioassay-guided fractionation led to the isolation of four nuclear erythroid factor 2-active compounds, which were structurally identified by NMR and LC/HRMS as the known compounds isovaltrate, valtrate, jatamanvaltrate-P, and valerenic acid. These four compounds were then tested in relevant biological assays. Firstly, their effects on the expression of glutathione S-transferase, glutamate-cysteine ligase catalytic subunit, glutathione peroxidase, and heme oxygenase 1 were determined in HepG2 cells. Glutathione S-transferase P1 and glutamate-cysteine ligase catalytic subunit were upregulated by isovaltrate, valtrate, and jatamanvaltrate-P, while heme oxygenase 1 was upregulated by isovaltrate, jatamanvaltrate-P, and valerenic acid. The four compounds also increased the levels of glutathione and its metabolite, CysGly. As glutathione aids in the detoxification of hydrogen peroxide, cytoprotective effects of these four nuclear erythroid factor 2 activators against hydrogen peroxide toxicity were investigated, and indeed, the compounds significantly improved cell survival. This study provides evidence that four valepotriates from the roots of V. officinalis are activators of nuclear erythroid factor 2-mediated antioxidant and detoxification pathways. Our data might expand the medical use of this plant beyond its current application as a sleep aid.
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Affiliation(s)
- Sualiha Afzal
- Pharmacology Unit, Western Sydney University, Campbelltown, NSW, Australia
| | - Xian Zhou
- NICM Health Research Institute, Western Sydney University, Westmead, NSW, Australia
| | - King Or
- Pharmacology Unit, Western Sydney University, Campbelltown, NSW, Australia
| | - Ritesh Raju
- Pharmacology Unit, Western Sydney University, Campbelltown, NSW, Australia
| | - Gerald Münch
- Pharmacology Unit, Western Sydney University, Campbelltown, NSW, Australia
- NICM Health Research Institute, Western Sydney University, Westmead, NSW, Australia
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Kubra KT, Akhter MS, Apperley K, Barabutis N. Growth Hormone-Releasing Hormone Antagonist JV-1-36 Suppresses Reactive Oxygen Species Generation in A549 Lung Cancer Cells. ENDOCRINES 2022; 3:813-820. [PMID: 36540765 PMCID: PMC9762825 DOI: 10.3390/endocrines3040067] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/27/2023] Open
Abstract
Growth hormone-releasing hormone (GHRH) and its receptors are expressed in a variety of human cancers, and have been involved in malignancies. GHRH antagonists (GHRHAnt) were developed to suppress tumor progression and metastasis. Previous studies demonstrate the involvement of reactive oxygen species (ROS) in cancer progression. Herein, we investigate the effect of a commercially available GHRH antagonist, namely JV-1-36, in the redox status of the A549 human cancer cell line. Our results suggest that this peptide significantly reduces ROS production in those cells in a time-dependent manner and counteracts H2O2-induced ROS. Our study supports the anti-oxidative effects of JV-1-36 and contributes in our knowledge towards the in vitro effects of GHRHAnt in cancers.
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Affiliation(s)
- Khadeja-Tul Kubra
- School of Basic Pharmaceutical and Toxicological Sciences, College of Pharmacy, University of Louisiana Monroe, 1800 Bienville Drive, Monroe, LA 71201, USA
| | - Mohammad S. Akhter
- School of Basic Pharmaceutical and Toxicological Sciences, College of Pharmacy, University of Louisiana Monroe, 1800 Bienville Drive, Monroe, LA 71201, USA
| | - Kaitlyn Apperley
- School of Basic Pharmaceutical and Toxicological Sciences, College of Pharmacy, University of Louisiana Monroe, 1800 Bienville Drive, Monroe, LA 71201, USA
| | - Nektarios Barabutis
- School of Basic Pharmaceutical and Toxicological Sciences, College of Pharmacy, University of Louisiana Monroe, 1800 Bienville Drive, Monroe, LA 71201, USA
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12
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Chemistry of Hydrogen Peroxide Formation and Elimination in Mammalian Cells, and Its Role in Various Pathologies. STRESSES 2022. [DOI: 10.3390/stresses2030019] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Hydrogen peroxide (H2O2) is a compound involved in some mammalian reactions and processes. It modulates and signals the redox metabolism of cells by acting as a messenger together with hydrogen sulfide (H2S) and the nitric oxide radical (•NO), activating specific oxidations that determine the metabolic response. The reaction triggered determines cell survival or apoptosis, depending on which downstream metabolic pathways are activated. There are several ways to produce H2O2 in cells, and cellular systems tightly control its concentration. At the cellular level, the accumulation of hydrogen peroxide can trigger inflammation and even apoptosis, and when its concentration in the blood reaches toxic levels, it can lead to bioenergetic failure. This review summarizes existing research from a chemical perspective on the role of H2O2 in various enzymatic pathways and how this biochemistry leads to physiological or pathological responses.
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Liu HT, Lin YN, Tsai MC, Wu YC, Lee MC. Baicalein Exerts Therapeutic Effects against Endotoxin-Induced Depression-like Behavior in Mice by Decreasing Inflammatory Cytokines and Increasing Brain-Derived Neurotrophic Factor Levels. Antioxidants (Basel) 2022; 11:antiox11050947. [PMID: 35624812 PMCID: PMC9137772 DOI: 10.3390/antiox11050947] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2022] [Revised: 05/06/2022] [Accepted: 05/07/2022] [Indexed: 12/07/2022] Open
Abstract
Inflammation plays an important role in the pathophysiology of depression. This study aims to elucidate the antidepressant effect of baicalein, an anti-inflammatory component of a traditional Chinese herbal medicine (Scutellaria baicalensis), on lipopolysaccharide (LPS)-induced depression-like behavior in mice, and to investigate the underlying mechanisms. In vitro, baicalein exhibited antioxidant activity and protected macrophages from LPS-induced damage. The results of the tail suspension test and forced swimming test (tests for despair potential in mice) showed the antidepressant effect of baicalein on LPS-treated mice. It also substantially decreased the production of pro-inflammatory cytokines, including IL-6, TNF-α, MCP-1, and eotaxin, elicited by LPS in the plasma. Baicalein downregulated NF-κB-p65 and iNOS protein levels in the hippocampus, demonstrated its ability to mitigate neuroinflammation. Additionally, baicalein increased the levels of the mature brain-derived neurotrophic factor (mBDNF) in the hippocampus of LPS-treated mice, and elevated the ratio of mBDNF/proBDNF, which regulates neuronal survival and synaptic plasticity. Baicalein also promoted the expression of CREB, which plays a role in a variety of signaling pathways. In summary, the findings of this study demonstrate that the administration of baicalein can attenuate LPS-induced depression-like behavior by suppressing neuroinflammation and inflammation induced by the peripheral immune response.
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Affiliation(s)
- Hsin-Tzu Liu
- Department of Medical Research, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Hualien 970, Taiwan; (H.-T.L.); (Y.-C.W.)
| | - Yu-Ning Lin
- Department of Chinese Medicine, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Hualien 970, Taiwan;
| | - Ming-Cheng Tsai
- Department of Neurosurgery, Shin-Kong Wu Ho-Su Memorial Hospital, Taipei 111, Taiwan;
| | - Ya-Chi Wu
- Department of Medical Research, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Hualien 970, Taiwan; (H.-T.L.); (Y.-C.W.)
| | - Ming-Chung Lee
- Department of Life Science, National Taiwan Normal University, Taipei 116, Taiwan
- School of Life Science, National Taiwan Normal University, No. 88, Sec. 4, Ting-Zhou Road, Taipei 116, Taiwan
- Correspondence: ; Tel.: +886-2-7749-6254; Fax: +886-2-29312904
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14
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Sun W, Choi HS, Kim CS, Bae EH, Ma SK, Kim SW. Maslinic Acid Attenuates Ischemia/Reperfusion-Induced Acute Kidney Injury by Suppressing Inflammation and Apoptosis Through Inhibiting NF-κB and MAPK Signaling Pathway. Front Pharmacol 2022; 13:807452. [PMID: 35496304 PMCID: PMC9039024 DOI: 10.3389/fphar.2022.807452] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Accepted: 03/03/2022] [Indexed: 12/14/2022] Open
Abstract
Inflammation and apoptosis are the major contributors to the mechanisms of acute kidney injury (AKI) due to renal ischemia-reperfusion injury (IRI). Maslinic acid (MA), a pentacyclic triterpene acid mostly found in dietary plants, the current study was to demonstrate the renoprotective effect of MA on IRI-induced AKI, and to investigate the role of inflammation and apoptosis-related signaling pathways as a molecular mechanism. C57BL/6J mice were subjected to IRI for 72 h, and MA was daily administered by intraperitoneal injection during this period. In parallel, rat renal proximal tubule cells (NRK52E) were prophylactically treated with MA and then exposed to hydrogen peroxide (H2O2). MA treatment significantly inhibited the mRNA expression of interleukin (IL-1β), tumor necrosis factor-α (TGF-α), monocyte chemoattractant protein-1 (MCP-1), and intercellular adhesion molecule-1(ICAM-1). Also, MA reduced the expression of Bax/Bcl2 ratio and cleaved caspase-3. In NRK52 cells, MA inhibited the IκBα degradation, blocked NF-κB/p65 phosphorylation, and nuclear translocation. The phosphorylation of ERK, JNK, and p38 was attenuated by MA in IRI-induced kidney injury and H2O2-stimulated NRK52 cells. The expression levels of IL-1β, MCP-1, and ICAM-1 were upregulated in H2O2-stimulated NRK52E cells, which was attenuated by NF-κB inhibitor. H2O2 treatment increased the Bax/Bcl2 ratio and cleaved caspase-3 in NRK52E cells, which was counteracted by MAPK inhibitors. Together, our data demonstrate that MA suppresses IR-induced AKI injury through NF-κB and MAPK signaling pathways and that MA is a promising agent in the treatment of kidney diseases.
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Araújo MC, Soczek SHS, Pontes JP, Marques LAC, Santos GS, Simão G, Bueno LR, Maria-Ferreira D, Muscará MN, Fernandes ES. An Overview of the TRP-Oxidative Stress Axis in Metabolic Syndrome: Insights for Novel Therapeutic Approaches. Cells 2022; 11:cells11081292. [PMID: 35455971 PMCID: PMC9030853 DOI: 10.3390/cells11081292] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Revised: 03/19/2022] [Accepted: 04/05/2022] [Indexed: 02/06/2023] Open
Abstract
Metabolic syndrome (MS) is a complex pathology characterized by visceral adiposity, insulin resistance, arterial hypertension, and dyslipidaemia. It has become a global epidemic associated with increased consumption of high-calorie, low-fibre food and sedentary habits. Some of its underlying mechanisms have been identified, with hypoadiponectinemia, inflammation and oxidative stress as important factors for MS establishment and progression. Alterations in adipokine levels may favour glucotoxicity and lipotoxicity which, in turn, contribute to inflammation and cellular stress responses within the adipose, pancreatic and liver tissues, in addition to hepatic steatosis. The multiple mechanisms of MS make its clinical management difficult, involving both non-pharmacological and pharmacological interventions. Transient receptor potential (TRP) channels are non-selective calcium channels involved in a plethora of physiological events, including energy balance, inflammation and oxidative stress. Evidence from animal models of disease has contributed to identify their specific contributions to MS and may help to tailor clinical trials for the disease. In this context, the oxidative stress sensors TRPV1, TRPA1 and TRPC5, play major roles in regulating inflammatory responses, thermogenesis and energy expenditure. Here, the interplay between these TRP channels and oxidative stress in MS is discussed in the light of novel therapies to treat this syndrome.
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Affiliation(s)
- Mizael C. Araújo
- Programa de Pós-Graduação, Universidade CEUMA, São Luís 65075-120, MA, Brazil; (M.C.A.); (G.S.S.)
| | - Suzany H. S. Soczek
- Instituto de Pesquisa Pelé Pequeno Príncipe, Curitiba 80250-060, PR, Brazil; (S.H.S.S.); (G.S.); (L.R.B.); (D.M.-F.)
- Programa de Pós-Graduação em Biotecnologia Aplicada à Saúde da Criança e do Adolescente, Faculdades Pequeno Príncipe, Curitiba 80230-020, PR, Brazil
| | - Jaqueline P. Pontes
- Programa de Pós-Graduação em Ciências da Saúde, Universidade Federal do Maranhão, São Luís 565085-080, MA, Brazil;
| | - Leonardo A. C. Marques
- Department of Pharmacology, Institute of Biomedical Sciences, University of São Paulo, São Paulo 05508-000, SP, Brazil; (L.A.C.M.); (M.N.M.)
| | - Gabriela S. Santos
- Programa de Pós-Graduação, Universidade CEUMA, São Luís 65075-120, MA, Brazil; (M.C.A.); (G.S.S.)
| | - Gisele Simão
- Instituto de Pesquisa Pelé Pequeno Príncipe, Curitiba 80250-060, PR, Brazil; (S.H.S.S.); (G.S.); (L.R.B.); (D.M.-F.)
- Programa de Pós-Graduação em Biotecnologia Aplicada à Saúde da Criança e do Adolescente, Faculdades Pequeno Príncipe, Curitiba 80230-020, PR, Brazil
| | - Laryssa R. Bueno
- Instituto de Pesquisa Pelé Pequeno Príncipe, Curitiba 80250-060, PR, Brazil; (S.H.S.S.); (G.S.); (L.R.B.); (D.M.-F.)
- Programa de Pós-Graduação em Biotecnologia Aplicada à Saúde da Criança e do Adolescente, Faculdades Pequeno Príncipe, Curitiba 80230-020, PR, Brazil
| | - Daniele Maria-Ferreira
- Instituto de Pesquisa Pelé Pequeno Príncipe, Curitiba 80250-060, PR, Brazil; (S.H.S.S.); (G.S.); (L.R.B.); (D.M.-F.)
- Programa de Pós-Graduação em Biotecnologia Aplicada à Saúde da Criança e do Adolescente, Faculdades Pequeno Príncipe, Curitiba 80230-020, PR, Brazil
| | - Marcelo N. Muscará
- Department of Pharmacology, Institute of Biomedical Sciences, University of São Paulo, São Paulo 05508-000, SP, Brazil; (L.A.C.M.); (M.N.M.)
| | - Elizabeth S. Fernandes
- Instituto de Pesquisa Pelé Pequeno Príncipe, Curitiba 80250-060, PR, Brazil; (S.H.S.S.); (G.S.); (L.R.B.); (D.M.-F.)
- Programa de Pós-Graduação em Biotecnologia Aplicada à Saúde da Criança e do Adolescente, Faculdades Pequeno Príncipe, Curitiba 80230-020, PR, Brazil
- Correspondence:
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16
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Zhou X, Venigalla M, Raju R, Münch G. Pharmacological considerations for treating neuroinflammation with curcumin in Alzheimer's disease. J Neural Transm (Vienna) 2022; 129:755-771. [PMID: 35294663 DOI: 10.1007/s00702-022-02480-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Accepted: 02/19/2022] [Indexed: 12/14/2022]
Abstract
Prof. Dr. Peter Riederer, the former Head of the Neurochemistry Department of the Psychiatry and Psychotherapy Clinic at the University of Würzburg (Germany), has been one of the pioneers of research into oxidative stress in Parkinson's and Alzheimer's disease (AD). This review will outline how his scientific contribution to the field has opened a new direction for AD treatment beyond "plaques and tangles". In the 1990s, Prof. Riederer was one of the first scientists who proposed oxidative stress and neuroinflammation as one of the major contributors to Alzheimer's disease, despite the overwhelming support for the "amyloid-only" hypothesis at the time, which postulated that the sole and only cause of AD is β-amyloid. His group also highlighted the role of advanced glycation end products, sugar and dicarbonyl-derived protein modifications, which crosslink proteins into insoluble aggregates and potent pro-inflammatory activators of microglia. For the treatment of chronic neuroinflammation, he and his group suggested that the most appropriate drug class would be cytokine-suppressive anti-inflammatory drugs (CSAIDs) which have a broader anti-inflammatory action range than conventional non-steroidal anti-inflammatory drugs. One of the most potent CSAIDs is curcumin, but it suffers from a variety of pharmacokinetic disadvantages including low bioavailability, which might have tainted many human clinical trials. Although a variety of oral formulations with increased bioavailability have been developed, curcumin's absorption after oral delivery is too low to reach therapeutic concentrations in the micromolar range in the systemic circulation and the brain. This review will conclude with evidence that rectally applied suppositories might be the best alternatives to oral medications, as this route will be able to evade first-pass metabolism in the liver and achieve high concentrations of curcumin in plasma and tissues, including the brain.
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Affiliation(s)
- Xian Zhou
- NICM Health Research Institute, Western Sydney University, 158-160 Hawkesbury Rd, Westmead, NSW, 2145, Australia
| | - Madhuri Venigalla
- Pharmacology Unit, School of Medicine, Western Sydney University, Campbelltown, NSW, 2560, Australia
| | - Ritesh Raju
- Pharmacology Unit, School of Medicine, Western Sydney University, Campbelltown, NSW, 2560, Australia
| | - Gerald Münch
- Pharmacology Unit, School of Medicine, Western Sydney University, Campbelltown, NSW, 2560, Australia.
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Choi S, Kim JA, Li H, Jo SE, Lee H, Kim TH, Kim M, Kim SJ, Suh SH. Anti-inflammatory and anti-fibrotic effects of modafinil in nonalcoholic liver disease. Biomed Pharmacother 2021; 144:112372. [PMID: 34794237 DOI: 10.1016/j.biopha.2021.112372] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2021] [Revised: 10/20/2021] [Accepted: 10/21/2021] [Indexed: 02/06/2023] Open
Abstract
Small- and intermediate-conductance Ca2+-activated K+ channels, KCa2.3 and KCa3.1, are involved in cellular signaling processes associated with inflammation and fibrosis. KCa2.3 and KCa3.1 are upregulated by proinflammatory cytokines and profibrotic growth factors. Cyclic AMP, which downregulates KCa2.3 and KCa3.1, is elevated by modafinil in cells; accordingly, we investigated whether modafinil exerts anti-inflammatory and anti-fibrotic responses via KCa2.3- and KCa3.1-mediated pathways in high-fat diet (HFD)- or thioacetamide-induced liver disease models in mice. Modafinil was administered orally in the form of a racemate, (R)-isomer, or (S)-isomer. We also determined whether the treatment targeted the profibrotic activity of hepatic stellate cells using immortalized human hepatic stellate cells (LX-2 cells). Modafinil improved HFD- or thioacetamide-induced changes compared to the control, leading to a reduced inflammatory response, collagen deposition, and α-smooth muscle actin expression both in vivo and in vitro. However, modafinil did not relieve HFD-induced steatosis. There were no significant differences in the effects of the (R)- and (S)-isomers of modafinil. KCa2.3 and KCa3.1 were upregulated and catalase was downregulated in liver tissues from thioacetamide- or HFD-induced liver disease models or in TGF-β-treated LX-2 cells. TGF-β-induced upregulation of KCa2.3, KCa3.1, collagen, and α-smooth muscle actin and downregulation of catalase were reversed by modafinil, polyethylene glycol catalase, N-acetylcysteine, siRNA against KCa2.3 or KCa3.1, and Epac inhibitors. Our investigation revealed that modafinil attenuated inflammatory and fibrotic progression via KCa2.3- and KCa3.1-mediated pathways in nonalcoholic hepatitis, suggesting that inhibiting KCa2.3- and KCa3.1-mediated signaling may serve as a novel therapeutic approach for inflammatory and fibrotic liver diseases.
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Affiliation(s)
- Shinkyu Choi
- Department of Physiology, School of Medicine, Ewha Womans University, Seoul, Republic of Korea
| | - Ji Aee Kim
- Department of Physiology, School of Medicine, Ewha Womans University, Seoul, Republic of Korea
| | - Haiyan Li
- Department of Physiology, School of Medicine, Ewha Womans University, Seoul, Republic of Korea
| | - Seong-Eun Jo
- Department of Physiology, School of Medicine, Ewha Womans University, Seoul, Republic of Korea
| | - Huisu Lee
- Department of Physiology, School of Medicine, Ewha Womans University, Seoul, Republic of Korea
| | - Tae Hun Kim
- Department of Internal Medicine, School of Medicine, Ewha Womans University, Seoul, Republic of Korea
| | - Minje Kim
- CellionBioMed Inc., Daejeon, Republic of Korea
| | | | - Suk Hyo Suh
- Department of Physiology, School of Medicine, Ewha Womans University, Seoul, Republic of Korea.
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Diagnosis and Simultaneous Treatment of Musculoskeletal Injury Using H 2O 2-Triggered Echogenic Antioxidant Polymer Nanoparticles in a Rat Model of Contusion Injury. NANOMATERIALS 2021; 11:nano11102571. [PMID: 34685012 PMCID: PMC8537538 DOI: 10.3390/nano11102571] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Revised: 09/21/2021] [Accepted: 09/21/2021] [Indexed: 01/06/2023]
Abstract
Ultrasound is clinically used for diagnosis and interventions for musculoskeletal injuries like muscle contusion, but contrast of ultrasonography still remains a challenge in the field of the musculoskeletal system. A level of hydrogen peroxide (H2O2) is known to be elevated during mechanical tissue damage and therefore H2O2 can be exploited as a diagnostic and therapeutic marker for mechanical injuries in the musculoskeletal system. We previously developed poly(vanillin-oxalate) (PVO) as an inflammation-responsive polymeric prodrug of vanillin, which is designed to rapidly respond to H2O2 and exert antioxidant and anti-inflammatory activities. The primary aim of this study is to verify whether PVO nanoparticles could serve as contrast agents as well as therapeutic agents for musculoskeletal injuries simultaneously. In a rat model of contusion-induced muscle injury, PVO nanoparticles generated CO2 bubbles to enhance the ultrasound contrast in the injury site. A single intramuscular injection of PVO nanoparticles also suppressed contusion-induced muscle damages by inhibiting the expression of pro-inflammatory cytokines and inflammatory cell infiltration. We, therefore, anticipate that PVO nanoparticles have great translational potential as not only ultrasound imaging agents but also therapeutic agents for the musculoskeletal disorders such as contusion.
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Sobczak M, Strachowska M, Gronkowska K, Karwaciak I, Pułaski Ł, Robaszkiewicz A. LSD1 Facilitates Pro-Inflammatory Polarization of Macrophages by Repressing Catalase. Cells 2021; 10:cells10092465. [PMID: 34572113 PMCID: PMC8469135 DOI: 10.3390/cells10092465] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Revised: 09/13/2021] [Accepted: 09/17/2021] [Indexed: 02/03/2023] Open
Abstract
The increased level of hydrogen peroxide accompanies some modes of macrophage specification and is linked to ROS-based antimicrobial activity of these phagocytes. In this study, we show that activation of toll-like receptors with bacterial components such as LPS is accompanied by the decline in transcription of hydrogen peroxide decomposing enzyme-catalase, suppression of which facilitates the polarization of human macrophages towards the pro-inflammatory phenotype. The chromatin remodeling at the CAT promoter involves LSD1 and HDAC1, but activity of the first enzyme defines abundance of the two proteins on chromatin, histone acetylation status and the CAT transcription. LSD1 inhibition prior to macrophage activation with LPS prevents CAT repression by enhancing the LSD1 and interfering with the HDAC1 recruitment to the gene promoter. The maintenance of catalase level with LSD1 inhibitors during M1 polarization considerably limits LPS-triggered expression of some pro-inflammatory cytokines and markers such as IL1β, TNFα, COX2, CD14, TLR2, and IFNAR, but the effect of LSD1 inhibitors is lost upon catalase deficiency. Summarizing, activity of LSD1 allows for the CAT repression in LPS stimulated macrophages, which negatively controls expression of some key pro-inflammatory markers. LSD1 inhibitors can be considered as possible immunosuppressive drugs capable of limiting macrophage M1 specialization.
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Affiliation(s)
- Maciej Sobczak
- Department of General Biophysics, Faculty of Biology and Environmental Protection, University of Lodz, Pomorska 141/143, 90-236 Lodz, Poland; (M.S.); (M.S.); (K.G.)
| | - Magdalena Strachowska
- Department of General Biophysics, Faculty of Biology and Environmental Protection, University of Lodz, Pomorska 141/143, 90-236 Lodz, Poland; (M.S.); (M.S.); (K.G.)
| | - Karolina Gronkowska
- Department of General Biophysics, Faculty of Biology and Environmental Protection, University of Lodz, Pomorska 141/143, 90-236 Lodz, Poland; (M.S.); (M.S.); (K.G.)
| | - Iwona Karwaciak
- Laboratory of Transcriptional Regulation, Institute of Medical Biology PAS, Lodowa 106, 93-232 Lodz, Poland; (I.K.); (Ł.P.)
| | - Łukasz Pułaski
- Laboratory of Transcriptional Regulation, Institute of Medical Biology PAS, Lodowa 106, 93-232 Lodz, Poland; (I.K.); (Ł.P.)
- Department of Molecular Biophysics, Faculty of Biology and Environmental Protection, University of Lodz, Pomorska 141/143, 90-236 Lodz, Poland
| | - Agnieszka Robaszkiewicz
- Department of General Biophysics, Faculty of Biology and Environmental Protection, University of Lodz, Pomorska 141/143, 90-236 Lodz, Poland; (M.S.); (M.S.); (K.G.)
- Correspondence: ; Tel.: +48-42-6354144
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20
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Shueng PW, Yu LY, Chiu HC, Chang HC, Chiu YL, Kuo TY, Yen YW, Lo CL. Early phago-/endosomal escape of platinum drugs via ROS-responsive micelles for dual cancer chemo/immunotherapy. Biomaterials 2021; 276:121012. [PMID: 34252800 DOI: 10.1016/j.biomaterials.2021.121012] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Revised: 06/01/2021] [Accepted: 07/04/2021] [Indexed: 02/06/2023]
Abstract
Recent studies have indicated that cancer treatment based on immunotherapy alone is not viable. Combined treatment with other strategies is required to achieve the expected therapeutic effect. Reactive oxygen species (ROS) play an important role in regulating cancer cells and the tumor microenvironment, even in immune cells. However, rigorous regulation of the ROS level within the entire tumor tissue is difficult, limiting the application of ROS in cancer therapy. Therefore, we design an early phago-/endosome-escaping micelle that can release platinum-based drugs into the cytoplasm of macrophages and cancer cells, thereby enhancing the ROS levels of the entire tumor tissue; inducing apoptosis of cancer cells, down-regulation of CD47 expression of cancer cells, polarization of M1 macrophages, and phagocytosis of cancer cells by M1 macrophages; and achieving the dual effect of chemotherapy and macrophage-mediated immunotherapy.
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Affiliation(s)
- Pei-Wei Shueng
- Division of Radiation Oncology, Far Eastern Memorial Hospital, New Taipei City, 220, Taiwan, ROC; Faculty of Medicine, School of Medicine, National Yang Ming Chiao Tung University, Taipei, 112, Taiwan, ROC; Faculty of Medicine, School of Medicine, National Yang-Ming University, Taipei, 112, Taiwan, ROC; Department of Radiation Oncology, Tri-Service General Hospital, National Defense Medical Center, Taipei, 112, Taiwan, ROC
| | - Lu-Yi Yu
- Department of Biomedical Engineering, National Yang Ming Chiao Tung University, Taipei, 112, Taiwan, ROC; Department of Biomedical Engineering, National Yang-Ming University, Taipei, 112, Taiwan, ROC
| | - Hsin-Cheng Chiu
- Department of Biomedical Engineering and Environmental Sciences, National Tsing-Hua University, Hsinchu, 300, Taiwan, ROC
| | - Hui-Ching Chang
- Department of Biomedical Engineering, National Yang Ming Chiao Tung University, Taipei, 112, Taiwan, ROC; Department of Biomedical Engineering, National Yang-Ming University, Taipei, 112, Taiwan, ROC
| | - Yen-Ling Chiu
- Graduate Program in Biomedical Informatics and Graduate Institute of Medicine, Yuan Ze University, Taoyuan City, 320, Taiwan, ROC; Graduate Institute of Clinical Medicine, National Taiwan University, Taipei, 100, Taiwan, ROC; Department of Medical Research, Far Eastern Memorial Hospital, New Taipei City, 220, Taiwan, ROC
| | - Tzu-Yu Kuo
- Department of Biomedical Engineering, National Yang Ming Chiao Tung University, Taipei, 112, Taiwan, ROC; Department of Biomedical Engineering, National Yang-Ming University, Taipei, 112, Taiwan, ROC
| | - Yu-Wei Yen
- Department of Biomedical Engineering, National Yang Ming Chiao Tung University, Taipei, 112, Taiwan, ROC; Department of Biomedical Engineering, National Yang-Ming University, Taipei, 112, Taiwan, ROC
| | - Chun-Liang Lo
- Department of Biomedical Engineering, National Yang Ming Chiao Tung University, Taipei, 112, Taiwan, ROC; Department of Biomedical Engineering, National Yang-Ming University, Taipei, 112, Taiwan, ROC; Center for Advanced Pharmaceutics and Drug Delivery Research, National Yang Ming Chiao Tung University, Taipei, 112, Taiwan, ROC.
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21
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Liang JJ, Liu YF, Ng TK, Xu CY, Zhang M, Pang CP, Cen LP. Peritoneal macrophages attenuate retinal ganglion cell survival and neurite outgrowth. Neural Regen Res 2021; 16:1121-1126. [PMID: 33269759 PMCID: PMC8224139 DOI: 10.4103/1673-5374.300462] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2019] [Revised: 03/19/2020] [Accepted: 06/10/2020] [Indexed: 02/05/2023] Open
Abstract
Inflammation is a critical pathophysiological process that modulates neuronal survival in the central nervous system after disease or injury. However, the effects and mechanisms of macrophage activation on neuronal survival remain unclear. In the present study, we co-cultured adult Fischer rat retinas with primary peritoneal macrophages or zymosan-treated peritoneal macrophages for 7 days. Immunofluorescence analysis revealed that peritoneal macrophages reduced retinal ganglion cell survival and neurite outgrowth in the retinal explant compared with the control group. The addition of zymosan to peritoneal macrophages attenuated the survival and neurite outgrowth of retinal ganglion cells. Conditioned media from peritoneal macrophages also reduced retinal ganglion cell survival and neurite outgrowth. This result suggests that secretions from peritoneal macrophages mediate the inhibitory effects of these macrophages. In addition, increased inflammation- and oxidation-related gene expression may be related to the enhanced retinal ganglion cell degeneration caused by zymosan activation. In summary, this study revealed that primary rat peritoneal macrophages attenuated retinal ganglion cell survival and neurite outgrowth, and that macrophage activation further aggravated retinal ganglion cell degeneration. This study was approved by the Animal Ethics Committee of the Joint Shantou International Eye Center of Shantou University and the Chinese University of Hong Kong, Shantou, Guangdong Province, China, on March 11, 2014 (approval no. EC20140311(2)-P01).
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Affiliation(s)
- Jia-Jian Liang
- Joint Shantou International Eye Center of Shantou University and the Chinese University of Hong Kong, Shantou, Guangdong Province, China
| | - Yu-Fen Liu
- Joint Shantou International Eye Center of Shantou University and the Chinese University of Hong Kong, Shantou, Guangdong Province, China
- Shantou University Medical College, Shantou, Guangdong Province, China
| | - Tsz Kin Ng
- Joint Shantou International Eye Center of Shantou University and the Chinese University of Hong Kong, Shantou, Guangdong Province, China
- Shantou University Medical College, Shantou, Guangdong Province, China
- Department of Ophthalmology and Visual Sciences, the Chinese University of Hong Kong, Hong Kong Special Administrative Region, China
| | - Ci-Yan Xu
- Joint Shantou International Eye Center of Shantou University and the Chinese University of Hong Kong, Shantou, Guangdong Province, China
| | - Mingzhi Zhang
- Joint Shantou International Eye Center of Shantou University and the Chinese University of Hong Kong, Shantou, Guangdong Province, China
| | - Chi Pui Pang
- Joint Shantou International Eye Center of Shantou University and the Chinese University of Hong Kong, Shantou, Guangdong Province, China
- Department of Ophthalmology and Visual Sciences, the Chinese University of Hong Kong, Hong Kong Special Administrative Region, China
| | - Ling-Ping Cen
- Joint Shantou International Eye Center of Shantou University and the Chinese University of Hong Kong, Shantou, Guangdong Province, China
- Correspondence to: Ling-Ping Cen,
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22
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Businaro R, Vauzour D, Sarris J, Münch G, Gyengesi E, Brogelli L, Zuzarte P. Therapeutic Opportunities for Food Supplements in Neurodegenerative Disease and Depression. Front Nutr 2021; 8:669846. [PMID: 34055858 PMCID: PMC8160227 DOI: 10.3389/fnut.2021.669846] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Accepted: 04/19/2021] [Indexed: 12/16/2022] Open
Abstract
Emerging evidence is showing nutrition as a crucial factor in the high prevalence and incidence of neurodegenerative mental disorders. Preventive interventions on neuroinflammation seem to be able to interfere with neurodegeneration. Supplementation of essential nutrients, such as long-chain-polyunsaturated fatty acids, vitamin E and mineral elements, may minimize inflammation, enhancing antioxidative defense, and lowering the risk and incidence of age-related diseases, such as cardiovascular diseases and neurodegenerative diseases. This manuscript reviews the current evidence on the role of neuroinflammation in the pathophysiology of neurodegenerative and mental disorders, and preventive strategies for food supplementation in these neuropsychiatric diseases. Dietary supplementation-based strategies have been demonstrated to be effective in subjects with mild cognitive impairment, while weaker results have been obtained in patients with advance neurodegenerative disease. Adjunctive supplementation has also been demonstrated to improve depression, this being of marked benefit considering the comorbidity between cognitive impairment/dementia and depression. Further research is needed to improve the prescriptive precision of supplementation in patients, and to better understand potential interactions with clinical and pharmacokinetic factors.
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Affiliation(s)
- Rita Businaro
- Department of Medico-Surgical Sciences and Biotechnologies, Sapienza University of Rome, Rome, Italy
| | - David Vauzour
- Faculty of Medicine and Health Sciences, Norwich Medical School, University of East Anglia, Norwich, United Kingdom
| | - Jerome Sarris
- NICM Health Research Institute, Western Sydney University, Westmead, NSW, Australia.,Professorial Unit, The Melbourne Clinic, Department of Psychiatry, Melbourne University, Melbourne, VIC, Australia
| | - Gerald Münch
- Pharmacology Unit, School of Medicine, Western Sydney University, Campbelltown, NSW, Australia
| | - Erika Gyengesi
- Pharmacology Unit, School of Medicine, Western Sydney University, Campbelltown, NSW, Australia
| | | | - Pedro Zuzarte
- Psychiatric Clinic, Faculty of Medicine, University of Lisbon, Lisbon, Portugal.,Neuropsychiatry Research Department, GNR Clinical Center, Lisbon, Portugal
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23
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Wang M, Liu X, Wu Y, Wang Y, Cui J, Sun J, Bai Y, Lang MF. ΜicroRNA-122 protects against ischemic stroke by targeting Maf1. Exp Ther Med 2021; 21:616. [PMID: 33936273 DOI: 10.3892/etm.2021.10048] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2020] [Accepted: 09/11/2020] [Indexed: 11/06/2022] Open
Abstract
The protection of brain tissue against damage and the reduction of infarct size is crucial for improving patient prognosis following ischemic stroke. Therefore, the present study aimed to investigate the regulatory effect of microRNA (miR)-122 and its target gene repressor of RNA polymerase III transcription MAF1 homolog (Maf1) on the infarct area in ischemic stroke. Reverse transcription-quantitative PCR (RT-qPCR) was performed to determine miR-122 expression levels in an ischemic stroke [middle cerebral artery occlusion (MCAO)] mouse model. Nissl staining was conducted to measure the infarct area of the MCAO mouse model. Moreover, RT-qPCR was performed to investigate the relationship between the expression of Maf1 and miR-122 in the MCAO mouse model. Dual-luciferase reporter assay in vitro and miR-122 mimic or inhibitor treatment in vivo were conducted to verify that miR-122 targeted and inhibited Maf1 expression. The results suggested that miR-122 was upregulated in the brain tissue of MCAO model mice. miR-122 overexpression effectively reduced the size of the infarct area in comparison with a control and miR-122 knockdown in brain tissue resulted in the opposite effect. Moreover, Maf1 was confirmed to be a direct target of miR-122. The results of a dual-luciferase reporter assay indicated that miR-122 bound to the 3'-untranslated region of Maf1. Maf1 expression decreased after stroke model induction in comparison with that in sham animals, and Maf1 expression was negatively associated with the expression of miR-122. In addition, miR-122 knockdown increased Maf1 expression levels, whereas miR-122 overexpression decreased Maf1 expression levels in comparison with a control. In conclusion, the results suggested that miR-122 improved the outcome of acute ischemic stroke by reducing the expression of Maf1.
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Affiliation(s)
- Mengmeng Wang
- Department of Neurology, Affiliated Xinhua Hospital of Dalian University, Dalian, Liaoning 116021, P.R. China
| | - Xiaoman Liu
- Department of Neurology, Affiliated Xinhua Hospital of Dalian University, Dalian, Liaoning 116021, P.R. China
| | - Yu Wu
- Medical College, Institute of Microanalysis, Dalian University, Dalian, Liaoning 116622, P.R. China
| | - Yi Wang
- Department of Neurology, Affiliated Xinhua Hospital of Dalian University, Dalian, Liaoning 116021, P.R. China
| | - Jiahui Cui
- Department of Neurology, Affiliated Xinhua Hospital of Dalian University, Dalian, Liaoning 116021, P.R. China
| | - Jing Sun
- College of Environmental and Chemical Engineering, Institute of Microanalysis, Dalian University, Dalian, Liaoning 116622, P.R. China
| | - Ying Bai
- Department of Neurology, Affiliated Xinhua Hospital of Dalian University, Dalian, Liaoning 116021, P.R. China
| | - Ming-Fei Lang
- Medical College, Institute of Microanalysis, Dalian University, Dalian, Liaoning 116622, P.R. China
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24
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Fan Y, Gao Q, Guan JX, Liu L, Hong M, Jun L, Wang L, Ding HF, Jiang LH, Hou BY, Li M, Song ZQ, Sun DQ, Yan CQ, Ma L. DDAH2 (-449 G/C) G allele is positively associated with leukoaraiosis in northeastern China: a double-blind, intergroup comparison, case-control study. Neural Regen Res 2021; 16:1592-1597. [PMID: 33433489 PMCID: PMC8323672 DOI: 10.4103/1673-5374.303037] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Cerebrovascular endothelial dysfunction is involved in the progression of leukoaraiosis. Asymmetric dimethylarginine is a competitive inhibitor of nitric oxide, which is highly expressed in patients with leukoaraiosis. Dimethylarginine dimethylaminohydrolase (DDAH) is a hydrolytic enzyme that is primarily responsible for eliminating asymmetric dimethylarginine, and it plays a role in the pathogenesis of cardiovascular and cerebrovascular diseases. The DDAH2 subtype is expressed in organs rich in induced nitric oxide synthase, including the heart, the placenta, and the cerebral endothelium during cerebral ischemia, in the stress state, or under neurotoxicity. Overexpression of the DDAH2 gene can inhibit asymmetric dimethylarginine-induced peripheral circulating endothelial cell dysfunction. However, it is unknown whether this polymorphism regulates plasma asymmetric dimethylarginine levels in patients with leukoaraiosis. In this double-blind study, we recruited 46 patients with leukoaraiosis and 46 healthy, matched controls. Plasma asymmetric dimethylarginine levels were determined using enzyme-linked immunoassays. Genomic DNA was isolated from whole blood samples, and polymerase chain reaction, SmaI restriction enzyme digestion, restriction fragment length polymorphisms, and agarose electrophoresis were used to detect DDAH2 (-449 G/C) gene polymorphisms. The results revealed that 95.65% of leukoaraiosis patients had recessive genetic models (GG and CG), while 89.13% of healthy control subjects had dominant genetic models (CC and CG). There was a significant difference in the genotype composition ratio between leukoaraiosis patients and healthy controls (P = 0.0002). The frequency of G alleles in the leukoaraiosis patients (71.74%) was significantly higher than in healthy controls, whereas the frequency of C alleles was lower (χ2= 13.9580, P = 0.0002). Furthermore, asymmetric dimethylarginine concentrations in subjects with the GG genotype were significantly higher than in subjects with the CG and CC genotypes (Kruskal–Wallis H = 24.5955, P < 0.0001). In addition, the GG genotype of DDAH2 (-449 G/C) was more common in patients with leukoaraiosis. These findings suggest that the G allele of DDAH2 (-449 G/C) is a risk factor for leukoaraiosis morbidity and is correlated with high levels of asymmetric dimethylarginine. This study was approved by the Institutional Ethics Committee of the 2nd Affiliated Hospital of Harbin Medical University of China (approval No. KY2016-177) on July 28, 2016.
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Affiliation(s)
- Ying Fan
- Department of Geriatrics, The 2nd Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China
| | - Qiang Gao
- Department of Geriatrics, The 2nd Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China
| | - Jia-Xin Guan
- Department of Geriatrics, The 2nd Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China
| | - Lei Liu
- Department of Geriatrics, The 2nd Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China
| | - Ming Hong
- Department of Geriatrics, Tongling Municipal Hospital, Tongling, Anhui Province, China
| | - Li Jun
- Department of Cardiovascular Medicine, Shanxi Cardiovascular Hospital, Taiyuan, Shanxi Province, China
| | - Li Wang
- Department of Geriatrics, The 2nd Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China
| | - Hai-Feng Ding
- Department of Geriatrics, The 2nd Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China
| | - Li-Hong Jiang
- Department of Geriatrics, The 2nd Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China
| | - Bo-Yu Hou
- Department of Geriatrics, The 2nd Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China
| | - Mei Li
- Department of Geriatrics, The 2nd Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China
| | - Zhi-Qiang Song
- Department of Geriatrics, The 2nd Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China
| | - De-Qin Sun
- Department of Geriatrics, The 2nd Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China
| | - Chao-Qi Yan
- Physical Examination Center, The 2nd Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China
| | - Lan Ma
- Department of Geriatrics, The 2nd Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China
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25
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Morrison ML, Iwata A, Wick ML, VandenEkart E, Insko MA, Henning DJ, Frare C, Rice SA, Drew KL, Maier RV, Roth MB. Iodine Redistribution During Trauma, Sepsis, and Hibernation: An Evolutionarily Conserved Response to Severe Stress. Crit Care Explor 2020; 2:e0215. [PMID: 33063025 PMCID: PMC7531756 DOI: 10.1097/cce.0000000000000215] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
OBJECTIVE We performed these studies to learn how iodine in the form of free iodide behaves during stress. DESIGN Prospective observational trial using samples obtained from human trauma patients and retrospective observational study using remnant samples from human sepsis patients and arctic ground squirrels. Preclinical interventional study using hind-limb ischemia and reperfusion injury in mice. SETTING Level I trauma center emergency room and ICU and animal research laboratories. SUBJECTS Adult human sepsis and trauma patients, wild-caught adult arctic ground squirrels, and sexually mature laboratory mice. INTERVENTIONS Ischemia and reperfusion injury was induced in mice by temporary application of tourniquet to one hind-limb. Iodide was administered IV just prior to reperfusion. MEASUREMENTS AND MAIN RESULTS Free iodide was measured using ion chromatography. Relative to iodide in plasma from normal donors, iodide was increased 17-fold in plasma from trauma patients and 26-fold in plasma from sepsis patients. In arctic ground squirrels, iodide increases over three-fold during hibernation. And during ischemia/reperfusion injury in mice, iodide accumulates in ischemic tissue and reduces both local and systemic tissue damage. CONCLUSIONS Iodide redistributes during stress and improves outcome after injury. Essential functions of iodide may have contributed to its evolutionary selection and be useful as a therapeutic intervention for human patients.
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Affiliation(s)
- Michael L Morrison
- Division of Basic Sciences, Fred Hutchinson Cancer Research Center, Seattle, WA
| | - Akiko Iwata
- Division of Basic Sciences, Fred Hutchinson Cancer Research Center, Seattle, WA
| | - Merry L Wick
- Division of Basic Sciences, Fred Hutchinson Cancer Research Center, Seattle, WA
| | - Emily VandenEkart
- Laboratory and Clinical Research, Faraday Pharmaceuticals, Seattle, WA
| | - Michael A Insko
- Laboratory and Clinical Research, Faraday Pharmaceuticals, Seattle, WA
| | - Daniel J Henning
- Department of Emergency Medicine, University of Washington, Seattle, WA
| | - Carla Frare
- Department of Chemistry and Biochemistry and Institute of Arctic Biology, University of Alaska Fairbanks, Fairbanks, AK
| | - Sarah A Rice
- Department of Chemistry and Biochemistry and Institute of Arctic Biology, University of Alaska Fairbanks, Fairbanks, AK
| | - Kelly L Drew
- Department of Chemistry and Biochemistry and Institute of Arctic Biology, University of Alaska Fairbanks, Fairbanks, AK
| | - Ronald V Maier
- Department of Surgery, Harborview Medical Center and University of Washington, Seattle, WA
| | - Mark B Roth
- Division of Basic Sciences, Fred Hutchinson Cancer Research Center, Seattle, WA
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26
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The Role of PARP1 in Monocyte and Macrophage Commitment and Specification: Future Perspectives and Limitations for the Treatment of Monocyte and Macrophage Relevant Diseases with PARP Inhibitors. Cells 2020; 9:cells9092040. [PMID: 32900001 PMCID: PMC7565932 DOI: 10.3390/cells9092040] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Revised: 09/04/2020] [Accepted: 09/04/2020] [Indexed: 12/13/2022] Open
Abstract
Modulation of PARP1 expression, changes in its enzymatic activity, post-translational modifications, and inflammasome-dependent cleavage play an important role in the development of monocytes and numerous subtypes of highly specialized macrophages. Transcription of PARP1 is governed by the proliferation status of cells at each step of their development. Higher abundance of PARP1 in embryonic stem cells and in hematopoietic precursors supports their self-renewal and pluri-/multipotency, whereas a low level of the enzyme in monocytes determines the pattern of surface receptors and signal transducers that are functionally linked to the NFκB pathway. In macrophages, the involvement of PARP1 in regulation of transcription, signaling, inflammasome activity, metabolism, and redox balance supports macrophage polarization towards the pro-inflammatory phenotype (M1), which drives host defense against pathogens. On the other hand, it seems to limit the development of a variety of subsets of anti-inflammatory myeloid effectors (M2), which help to remove tissue debris and achieve healing. PARP inhibitors, which prevent protein ADP-ribosylation, and PARP1‒DNA traps, which capture the enzyme on chromatin, may allow us to modulate immune responses and the development of particular cell types. They can be also effective in the treatment of monocytic leukemia and other cancers by reverting the anti- to the proinflammatory phenotype in tumor-associated macrophages.
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