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Nassif RM, Chalhoub E, Chedid P, Hurtado-Nedelec M, Raya E, Dang PMC, Marie JC, El-Benna J. Metformin Inhibits ROS Production by Human M2 Macrophages via the Activation of AMPK. Biomedicines 2022; 10:biomedicines10020319. [PMID: 35203528 PMCID: PMC8869356 DOI: 10.3390/biomedicines10020319] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Revised: 01/11/2022] [Accepted: 01/24/2022] [Indexed: 11/16/2022] Open
Abstract
Metformin (1,1-dimethylbiguanide hydrochloride) is the most commonly used drug to treat type II diabetic patients. It is believed that this drug has several other beneficial effects, such as anti-inflammatory and anticancer effects. Here, we wanted to evaluate the effect of metformin on the production of reactive oxygen species (ROS) by human macrophages. Macrophages are generated in vivo from circulating monocytes depending on the local tissue environment. In vitro proinflammatory macrophages (M1) and anti-inflammatory macrophages (M2) can be generated by culturing monocytes in the presence of different cytokines, such as GM-CSF or M-CSF, respectively. We show that metformin selectively inhibited human monocyte differentiation into proinflammatory macrophages (M1) without inhibiting their differentiation into anti-inflammatory macrophages (M2). Moreover, we demonstrate that, in response to LPS, M2 macrophages produced ROS, which could be very harmful for nearby tissues, and metformin inhibited this process. Interestingly, metformin with LPS induced activation of the adenosine-monophosphate-activated protein kinase (AMPK) and pharmacological activation of AMPK by AICAR, a known AMPK activator, decreased ROS production, whereas the deletion of AMPK in mice dramatically enhanced ROS production in different types of immune cells. These results suggest that metformin exhibits anti-inflammatory effects by inhibiting the differentiation of human monocytes into M1 macrophages and by limiting ROS production by macrophages via the activation of AMPK.
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Affiliation(s)
- Rana M. Nassif
- Faculty of Health Sciences, University of Balamand, P.O. Box 55251 Sin El Fil, Beirut 1100-2807, Lebanon; (R.M.N.); (E.C.); (P.C.); (E.R.)
- Centre de Recherche sur l’Inflammation (CRI), Laboratoire d’Excellence Inflamex, Faculté de Médecine Xavier Bichat, Université de Paris, INSERM-U1149, CNRS-ERL8252, 75018 Paris, France; (M.H.-N.); (P.M.-C.D.); (J.-C.M.)
| | - Elias Chalhoub
- Faculty of Health Sciences, University of Balamand, P.O. Box 55251 Sin El Fil, Beirut 1100-2807, Lebanon; (R.M.N.); (E.C.); (P.C.); (E.R.)
| | - Pia Chedid
- Faculty of Health Sciences, University of Balamand, P.O. Box 55251 Sin El Fil, Beirut 1100-2807, Lebanon; (R.M.N.); (E.C.); (P.C.); (E.R.)
| | - Margarita Hurtado-Nedelec
- Centre de Recherche sur l’Inflammation (CRI), Laboratoire d’Excellence Inflamex, Faculté de Médecine Xavier Bichat, Université de Paris, INSERM-U1149, CNRS-ERL8252, 75018 Paris, France; (M.H.-N.); (P.M.-C.D.); (J.-C.M.)
| | - Elia Raya
- Faculty of Health Sciences, University of Balamand, P.O. Box 55251 Sin El Fil, Beirut 1100-2807, Lebanon; (R.M.N.); (E.C.); (P.C.); (E.R.)
| | - Pham My-Chan Dang
- Centre de Recherche sur l’Inflammation (CRI), Laboratoire d’Excellence Inflamex, Faculté de Médecine Xavier Bichat, Université de Paris, INSERM-U1149, CNRS-ERL8252, 75018 Paris, France; (M.H.-N.); (P.M.-C.D.); (J.-C.M.)
| | - Jean-Claude Marie
- Centre de Recherche sur l’Inflammation (CRI), Laboratoire d’Excellence Inflamex, Faculté de Médecine Xavier Bichat, Université de Paris, INSERM-U1149, CNRS-ERL8252, 75018 Paris, France; (M.H.-N.); (P.M.-C.D.); (J.-C.M.)
| | - Jamel El-Benna
- Centre de Recherche sur l’Inflammation (CRI), Laboratoire d’Excellence Inflamex, Faculté de Médecine Xavier Bichat, Université de Paris, INSERM-U1149, CNRS-ERL8252, 75018 Paris, France; (M.H.-N.); (P.M.-C.D.); (J.-C.M.)
- Correspondence: ; Tel.: +33-1-57-27-77-23; Fax: +33-1-57-27-74-61
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Magacz M, Oszajca M, Nawrot-Hadzik I, Drożdż R, Jurczak A, Hadzik J, Smakosz A, Krzyściak W. Phenolic Compounds of Reynoutria sp. as Modulators of Oral Cavity Lactoperoxidase System. Antioxidants (Basel) 2021; 10:antiox10050676. [PMID: 33926051 PMCID: PMC8146912 DOI: 10.3390/antiox10050676] [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: 03/29/2021] [Revised: 04/15/2021] [Accepted: 04/24/2021] [Indexed: 11/16/2022] Open
Abstract
Lactoperoxidase (LPO) together with its (pseudo)halogenation cycle substrates, H2O2 and thiocyanate ions oxidized to hypothiocyanite ions, form one of the main systems involved in antimicrobial defense within the oral cavity. In bacterial diseases such as dental caries, lactoperoxidase is oxidized to a form known as Compound II, which is characterized by its inability to oxidize SCN–, resulting in a decreased generation of antimicrobial products. Reynoutria sp. rizome extracts, due to their high polyphenol content, have been tested as a source of compounds able to regenerate the antimicrobial activity of lactoperoxidase through converting the Compound II to the native LPO state. In the presented study, acetone extracts of R. japonica, R. sachalinensis, and R. x bohemica, together with their five fractions and four selected polyphenols dominating in the studied in extracts, were tested toward lactoperoxidase reactivating potential. For this purpose, IC50, EC50, and activation percentage were determined by Ellman’s method. Furthermore, the rate constants for the conversion of Compound I–Compound II and Compound II–native-LPO in the presence of extracts, extracts fractions, and selected polyphenols were determined. Finally, the ability to enhance the antimicrobial properties of the lactoperoxidase system was tested against Streptococcus mutans. We proved that Reynoutria sp. rhizome is the source of lactoperoxidase peroxidation cycle substrates, which can act as activators and inhibitors of the antimicrobial properties of that system. The presented study shows that the reactivation of lactoperoxidase could become a potential therapeutic target in prevention and treatment support in some infectious oral diseases.
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Affiliation(s)
- Marcin Magacz
- Department of Medical Diagnostics, Faculty of Pharmacy, Jagiellonian University Medical College, Medyczna 9, 30-688 Krakow, Poland; (M.M.); (R.D.)
- Doctoral School of Health and Medical Sciences, Jagiellonian University Medical College, 31-008 Krakow, Poland
| | - Maria Oszajca
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Krakow, Poland
- Correspondence: (M.O.); (W.K.); Tel.: +48-12-62-05-760 (W.K.)
| | - Izabela Nawrot-Hadzik
- Department of Pharmaceutical Biology and Biotechnology, Wroclaw Medical University, 50-367 Wroclaw, Poland; (I.N.-H.); (A.S.)
| | - Ryszard Drożdż
- Department of Medical Diagnostics, Faculty of Pharmacy, Jagiellonian University Medical College, Medyczna 9, 30-688 Krakow, Poland; (M.M.); (R.D.)
| | - Anna Jurczak
- Department of Pediatric Dentistry, Institute of Dentistry, Jagiellonian University Medical College, 31-155 Krakow, Poland;
| | - Jakub Hadzik
- Department of Dental Surgery, Wroclaw Medical University, Krakowska 26, 50-425 Wroclaw, Poland;
| | - Aleksander Smakosz
- Department of Pharmaceutical Biology and Biotechnology, Wroclaw Medical University, 50-367 Wroclaw, Poland; (I.N.-H.); (A.S.)
| | - Wirginia Krzyściak
- Department of Medical Diagnostics, Faculty of Pharmacy, Jagiellonian University Medical College, Medyczna 9, 30-688 Krakow, Poland; (M.M.); (R.D.)
- Correspondence: (M.O.); (W.K.); Tel.: +48-12-62-05-760 (W.K.)
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Magacz M, Kędziora K, Sapa J, Krzyściak W. The Significance of Lactoperoxidase System in Oral Health: Application and Efficacy in Oral Hygiene Products. Int J Mol Sci 2019; 20:ijms20061443. [PMID: 30901933 PMCID: PMC6472183 DOI: 10.3390/ijms20061443] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2019] [Revised: 03/13/2019] [Accepted: 03/18/2019] [Indexed: 12/13/2022] Open
Abstract
Lactoperoxidase (LPO) present in saliva are an important element of the nonspecific immune response involved in maintaining oral health. The main role of this enzyme is to oxidize salivary thiocyanate ions (SCN-) in the presence of hydrogen peroxide (H₂O₂) to products that exhibit antimicrobial activity. LPO derived from bovine milk has found an application in food, cosmetics, and medical industries due to its structural and functional similarity to the human enzyme. Oral hygiene products enriched with the LPO system constitute an alternative to the classic fluoride caries prophylaxis. This review describes the physiological role of human salivary lactoperoxidase and compares the results of clinical trials and in vitro studies of LPO alone and complex dentifrices enriched with bovine LPO. The role of reactivators and inhibitors of LPO is discussed together with the possibility of using nanoparticles to increase the stabilization and activity of this enzyme.
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Affiliation(s)
- Marcin Magacz
- Department of Medical Diagnostics, Faculty of Pharmacy, Jagiellonian University Medical College, Medyczna 9, 30-688 Kraków, Poland.
| | - Karolina Kędziora
- Department of Medical Diagnostics, Faculty of Pharmacy, Jagiellonian University Medical College, Medyczna 9, 30-688 Kraków, Poland.
| | - Jacek Sapa
- Department of Pharmacodynamics, Faculty of Pharmacy, Jagiellonian University Medical College, Medyczna 9, 30-688 Kraków, Poland.
| | - Wirginia Krzyściak
- Department of Medical Diagnostics, Faculty of Pharmacy, Jagiellonian University Medical College, Medyczna 9, 30-688 Kraków, Poland.
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The Role of Hydrogen Peroxide in Redox-Dependent Signaling: Homeostatic and Pathological Responses in Mammalian Cells. Cells 2018; 7:cells7100156. [PMID: 30287799 PMCID: PMC6211135 DOI: 10.3390/cells7100156] [Citation(s) in RCA: 143] [Impact Index Per Article: 23.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2018] [Revised: 09/29/2018] [Accepted: 10/03/2018] [Indexed: 12/20/2022] Open
Abstract
Hydrogen peroxide (H2O2) is an important metabolite involved in most of the redox metabolism reactions and processes of the cells. H2O2 is recognized as one of the main molecules in the sensing, modulation and signaling of redox metabolism, and it is acting as a second messenger together with hydrogen sulfide (H2S) and nitric oxide (NO). These second messengers activate in turn a cascade of downstream proteins via specific oxidations leading to a metabolic response of the cell. This metabolic response can determine proliferation, survival or death of the cell depending on which downstream pathways (homeostatic, pathological, or protective) have been activated. The cells have several sources of H2O2 and cellular systems strictly control its concentration in different subcellular compartments. This review summarizes research on the role played by H2O2 in signaling pathways of eukaryotic cells and how this signaling leads to homeostatic or pathological responses.
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Abstract
The mechanism by which reactive oxygen species (ROS) are produced by tumour cells remained incompletely understood until the discovery over the last 15 years of the family of NADPH oxidases (NOXs 1–5 and dual oxidases DUOX1/2) which are structural homologues of gp91phox, the major membrane-bound component of the respiratory burst oxidase of leucocytes. Knowledge of the roles of the NOX isoforms in cancer is rapidly expanding. Recent evidence suggests that both NOX1 and DUOX2 species produce ROS in the gastrointestinal tract as a result of chronic inflammatory stress; cytokine induction (by interferon-γ, tumour necrosis factor α, and interleukins IL-4 and IL-13) of NOX1 and DUOX2 may contribute to the development of colorectal and pancreatic carcinomas in patients with inflammatory bowel disease and chronic pancreatitis, respectively. NOX4 expression is increased in pre-malignant fibrotic states which may lead to carcinomas of the lung and liver. NOX5 is highly expressed in malignant melanomas, prostate cancer and Barrett's oesophagus-associated adenocarcinomas, and in the last it is related to chronic gastro-oesophageal reflux and inflammation. Over-expression of functional NOX proteins in many tissues helps to explain tissue injury and DNA damage from ROS that accompany pre-malignant conditions, as well as elucidating the potential mechanisms of NOX-related damage that contribute to both the initiation and the progression of a wide range of solid and haematopoietic malignancies.
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Ramonaite R, Skieceviciene J, Kiudelis G, Jonaitis L, Tamelis A, Cizas P, Borutaite V, Kupcinskas L. Influence of NADPH oxidase on inflammatory response in primary intestinal epithelial cells in patients with ulcerative colitis. BMC Gastroenterol 2013; 13:159. [PMID: 24229374 PMCID: PMC3834533 DOI: 10.1186/1471-230x-13-159] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/02/2013] [Accepted: 11/11/2013] [Indexed: 02/07/2023] Open
Abstract
Background The aim of this study is to evaluate the role of NADPH oxidase in primary intestinal epithelial cells during the active phase of UC. Methods The primary human colonic epithelial cells were isolated from 19 patients with mild to moderate inflammatory activity of UC and 14 controls using chelation method. The cells were cultivated under the effect of mediators. Viability of cells was assessed by fluorescent microscopy. Production of reactive oxygen species (ROS) by the cells was measured fluorimetrically using Amplex Red. Production of TNF-α cytokine by the colonic epithelial cells was analysed by ELISA. Results The results of our study showed that unstimulated cells of UC patients had a decreased viability, increased ROS production, but similar TNF-α level when compared to the controls. Stimulation with LPS increased hydrogen peroxide and TNF-α level in the UC group. Treatment of colonic epithelial cells with NADPH oxidase inhibitor increased cell viability decreased the levels of ROS and TNF-α in the LPS-treated cells isolated from UC patients. Conclusions Our study showed that bacterial endotoxins induced NADPH oxidase activation in the colonic epithelial cells. Moreover, we revealed that treatment with NADPH oxidase inhibitors had a protective effect against pro-inflammatory action of LPS in human colonic epithelium cells during inflammation.
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Affiliation(s)
| | | | | | | | | | | | | | - Limas Kupcinskas
- Institute for Digestive Research, Academy of Medicine, Lithuanian University of Health Sciences, A, Mickeviciaus str, 9, LT-44307 Kaunas, Lithuania.
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Dartsch PC. Effect of Asparagus-P®on cell metabolism of cultured kidney and inflammation-mediating cells. Phytother Res 2008; 22:1477-81. [DOI: 10.1002/ptr.2497] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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