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Assiry HM, Hamed AR, Mohamed GA, Ibrahim SRM, Koshak AE, Malebari AM, Fadil SA, Abdallah HM. Acetyl barlerin from Barleria trispinosa induces chemopreventive NQO1 and attenuates LPS-induced inflammation: in vitro and molecular dynamic studies. J Biomol Struct Dyn 2023:1-12. [PMID: 38116740 DOI: 10.1080/07391102.2023.2293272] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Accepted: 11/29/2023] [Indexed: 12/21/2023]
Abstract
Extraction and fractionation of Barleria trispinosa growing in Saudi Arabia yielded four iridoid compounds identified by spectroscopic techniques as acetylbarlerin (1), barlerin (2), shanzhiside methyl ester (3) and 6-⍺-L-rhamnopyranosyl-8-O-acetylshanzihiside methyl ester (4). Preliminary experiments confirmed that compound 1 acts as an inducer of chemopreventive NAD(P)H:Quinone oxidoreductase 1 (NQO1) enzymatic activity in a murine hepatoma (Hepa1c1c7) chemoprevention model. It also demonstrated the ability to inhibit the lipopolysaccharides (LPS)-induced nitric oxide (NO) production in the RAW264.7 macrophage model. Western blotting revealed the ability of compound 1 to up-regulate the protein expression of the NQO1 marker. Furthermore, compound 1 elicited NO suppression in RAW264.7 macrophages by inhibiting iNOS protein expression. Molecular docking and molecular simulation studies of 1 supported its experimental results as an inhibitor of the nuclear factor erythroid 2-Kelch-like ECH-associated protein 1 (Nrf2-KEAP1) complex, resulting in Nrf2-mediated induction of chemopreventive NQO1.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Hamza M Assiry
- Department of Natural Products and Alternative Medicine, Faculty of Pharmacy, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Ahmed R Hamed
- Chemistry of Medicinal Plants Department & Biology Unit, Central Laboratory for Pharmaceutical and Drug Industries Research Division, National Research Centre, Dokki, Egypt
| | - Gamal A Mohamed
- Department of Natural Products and Alternative Medicine, Faculty of Pharmacy, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Sabrin R M Ibrahim
- Department of Chemistry, Preparatory Year Program, Batterjee Medical College, Jeddah, Saudi Arabia
- Department of Pharmacognosy, Faculty of Pharmacy, Assiut University, Assiut, Egypt
| | - Abdulrahman E Koshak
- Department of Natural Products and Alternative Medicine, Faculty of Pharmacy, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Azizah M Malebari
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Sana A Fadil
- Department of Natural Products and Alternative Medicine, Faculty of Pharmacy, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Hossam M Abdallah
- Department of Natural Products and Alternative Medicine, Faculty of Pharmacy, King Abdulaziz University, Jeddah, Saudi Arabia
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He R, Liu B, Geng B, Li N, Geng Q. The role of HDAC3 and its inhibitors in regulation of oxidative stress and chronic diseases. Cell Death Discov 2023; 9:131. [PMID: 37072432 PMCID: PMC10113195 DOI: 10.1038/s41420-023-01399-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Revised: 03/01/2023] [Accepted: 03/06/2023] [Indexed: 04/20/2023] Open
Abstract
HDAC3 is a specific and crucial member of the HDAC family. It is required for embryonic growth, development, and physiological function. The regulation of oxidative stress is an important factor in intracellular homeostasis and signal transduction. Currently, HDAC3 has been found to regulate several oxidative stress-related processes and molecules dependent on its deacetylase and non-enzymatic activities. In this review, we comprehensively summarize the knowledge of the relationship of HDAC3 with mitochondria function and metabolism, ROS-produced enzymes, antioxidant enzymes, and oxidative stress-associated transcription factors. We also discuss the role of HDAC3 and its inhibitors in some chronic cardiovascular, kidney, and neurodegenerative diseases. Due to the simultaneous existence of enzyme activity and non-enzyme activity, HDAC3 and the development of its selective inhibitors still need further exploration in the future.
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Affiliation(s)
- Ruyuan He
- Department of Thoracic Surgery, Renmin Hospital of Wuhan University, Wuhan, China
| | - Bohao Liu
- Department of Thoracic Surgery, Renmin Hospital of Wuhan University, Wuhan, China
| | - Boxin Geng
- School of Basic Medicine, Army Medical University (Third Military Medical University), Chongqing, China
| | - Ning Li
- Department of Thoracic Surgery, Renmin Hospital of Wuhan University, Wuhan, China.
| | - Qing Geng
- Department of Thoracic Surgery, Renmin Hospital of Wuhan University, Wuhan, China.
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3
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Kemper G, Hölscher M, Leitner W. Pd(II)-catalyzed carboxylation of aromatic C─H bonds with CO 2. SCIENCE ADVANCES 2023; 9:eadf2966. [PMID: 36735781 PMCID: PMC9897662 DOI: 10.1126/sciadv.adf2966] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Accepted: 12/30/2022] [Indexed: 06/18/2023]
Abstract
The carboxylation of nonactivated C─H bonds provides an attractive yet hitherto largely elusive chemical process to synthesize carboxylic acids by incorporation of CO2 into the chemical value chain. Here, we report on the realization of such a reaction using simple and nonactivated arenes as starting materials. A computationally designed Pd(II) complex acts as organometallic single-component catalyst, and apart from a base, necessary for thermodynamic stabilization of the intermediates, no other additives or coreagents are required. Turnover numbers up to 102 and high regioselectivities are achieved. The potential of this catalytic reaction for "green chemistry" is demonstrated by the synthesis of veratric acid, an intermediate for pharmaceutical production, from CO2 and veratrol.
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Affiliation(s)
- Gregor Kemper
- Institut für Technische und Makromolekulare Chemie, RWTH Aachen University, Aachen, Germany
| | - Markus Hölscher
- Institut für Technische und Makromolekulare Chemie, RWTH Aachen University, Aachen, Germany
| | - Walter Leitner
- Institut für Technische und Makromolekulare Chemie, RWTH Aachen University, Aachen, Germany
- Max Planck Institute for Chemical Energy Conversion, Mülheim an der Ruhr, Germany
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Muacevic A, Adler JR. Effects of Suberoylanilide Hydroxamic Acid (SAHA) on the Inflammatory Response in Lipopolysaccharide-Induced N9 Microglial Cells. Cureus 2022; 14:e32428. [PMID: 36644097 PMCID: PMC9832526 DOI: 10.7759/cureus.32428] [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] [Accepted: 12/12/2022] [Indexed: 12/14/2022] Open
Abstract
INTRODUCTION Epigenetics has shown promising results for understanding the different behaviors of microglia under the context of neuroinflammation. However, to our knowledge, the results of this complex mechanism with novel pharmacological agents such as histone deacetylase inhibitors (HDACis) are still missing. In this study, we aimed to investigate the effects of suberoylanilide hydroxamic acid (SAHA), a pan-HDACi, on the lipopolysaccharide (LPS)-induced neuroinflammation model in the N9 microglial cells. METHODS Microglial cells were treated with SAHA (0.25, 0.5, 1.0, 1.25, 1.5 µM) and LPS (100 ng/mL) for 24 hours. Then, levels of the pro/anti-inflammatory cytokines interleukin-1 beta (IL-1β), IL-6, tumor necrosis factor alpha (TNF-α), and IL-10 were determined by the enzyme-linked immunosorbent assay. The total cellular HDAC activity was determined by colorimetric analysis. Additionally, the expression levels of nuclear factor kappa-B (NF-κB) were quantified via western blotting. RESULTS SAHA (1.0 and 1.25 µM) attenuated the LPS-induced inflammatory response of microglial cells via decreasing NF-κB expression and pro-inflammatory cytokines (IL-1β, IL-6, TNF-α) in the N9 microglial cells. Moreover, SAHA treatment improved IL-10 levels and prevented the LPS-induced increase in the HDAC activity in the microglial cells. CONCLUSION Our results suggest SAHA attenuates the LPS-induced inflammatory response in the N9 microglial cells, and regulation of histone acetylation with HDACis might be a rational approach for the treatment of neuroinflammation.
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Li Z, Liu X, Zhang X, Zhang W, Gong M, Qin X, Luo J, Fang Y, Liu B, Wei Y. TRIM21 aggravates cardiac injury after myocardial infarction by promoting M1 macrophage polarization. Front Immunol 2022; 13:1053171. [DOI: 10.3389/fimmu.2022.1053171] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2022] [Accepted: 10/25/2022] [Indexed: 11/11/2022] Open
Abstract
Macrophage polarization followed by myocardial infarction (MI) is essential for wound healing. Tripartite motif-containing protein 21 (TRIM21), a member of E3 ubiquitin ligases, is emerging as a mediator in cardiac injury and heart failure. However, its function in modulating post-MI macrophage polarization remains elusive. Here, we detected that the levels of TRIM21 significantly increased in macrophages of wild-type (WT) mice after MI. In contrast, MI was ameliorated in TRIM21 knockout (TRIM21-/-) mice with improved cardiac remodeling, characterized by a marked decrease in mortality, decreased infarct size, and improved cardiac function compared with WT-MI mice. Notably, TRIM21 deficiency impeded the post-MI apoptosis and DNA damage in the hearts of mice. Consistently, the accumulation of M1 phenotype macrophages in the infarcted tissues was significantly reduced with TRIM21 deletion. Mechanistically, the deletion of TRIM21 orchestrated the process of M1 macrophage polarization at least partly via a PI3K/Akt signaling pathway. Overall, we identify TRIM21 drives the inflammatory response and cardiac remodeling by stimulating M1 macrophage polarization through a PI3K/Akt signaling pathway post-MI.
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Cao M, Yang J, Wang X, Hu W, Xie X, Zhao Y, Liu M, Wei Y, Yu M, Hu T. Sophora subprostrate polysaccharide regulates histone acetylation to inhibit inflammation in PCV2-infected murine splenic lymphocytes in vitro and in vivo. Int J Biol Macromol 2021; 191:668-678. [PMID: 34560152 DOI: 10.1016/j.ijbiomac.2021.09.119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Revised: 09/10/2021] [Accepted: 09/18/2021] [Indexed: 11/26/2022]
Abstract
Porcine circovirus type 2 (PCV2) has caused large economic losses in the swine industry worldwide; therefore, research on relevant therapeutic medicines is still urgently needed. To define the relationship between histone acetylation and inflammation induced by PCV2, we investigated whether traditional Chinese medicinal polysaccharides could alleviate viral infection by regulating histone acetylation. In this study, Sophora subprostrate polysaccharide (SSP)-treated PCV2-infected murine splenic lymphocytes in vitro and murine spleen in vivo were used to explore the regulatory effects of SSP on inflammation and histone acetylation caused by PCV2. SSP at different concentrations significantly reduced the secretion levels of the proinflammatory cytokines TNF-α and IL-6, the activity of COX-2, the mRNA expression levels of TNF-α, IL-6, iNOS and COX-2 and the protein expression levels of iNOS and COX-2 but promoted the secretion and mRNA expression levels of IL-10. Furthermore, the different concentrations of SSP significantly regulated the activity of histone acetylase (HAT) and the mRNA expression of HAT1, increased the activity of histone deacetylase (HDAC) and the mRNA expression of HDAC1 and reduced the protein expression levels of Ac-H3 and Ac-H4. Overall, SSP inhibited inflammation in PCV2-infected murine splenic lymphocytes by regulating histone acetylation in vitro and in vivo, thus playing an important role in PCV2 infection.
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Affiliation(s)
- Mixia Cao
- College of Animal Science and Technology, Guangxi University, Nanning 530004, PR China
| | - Jian Yang
- College of Animal Science and Technology, Guangxi University, Nanning 530004, PR China; College of Animal Science, Guizhou University, Guiyang 550025, PR China
| | - Xinrui Wang
- College of Animal Science and Technology, Guangxi University, Nanning 530004, PR China
| | - Wenyue Hu
- School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai 200030, PR China
| | - Xiaodong Xie
- College of Animal Science and Technology, Guangxi University, Nanning 530004, PR China
| | - Yi Zhao
- College of Animal Science and Technology, Guangxi University, Nanning 530004, PR China
| | - Mengqian Liu
- College of Animal Science and Technology, Guangxi University, Nanning 530004, PR China
| | - Yingyi Wei
- College of Animal Science and Technology, Guangxi University, Nanning 530004, PR China
| | - Meiling Yu
- College of Animal Science and Technology, Guangxi University, Nanning 530004, PR China
| | - Tingjun Hu
- College of Animal Science and Technology, Guangxi University, Nanning 530004, PR China.
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Palko-Łabuz A, Gliszczyńska A, Skonieczna M, Poła A, Wesołowska O, Środa-Pomianek K. Conjugation with Phospholipids as a Modification Increasing Anticancer Activity of Phenolic Acids in Metastatic Melanoma-In Vitro and In Silico Studies. Int J Mol Sci 2021; 22:8397. [PMID: 34445104 PMCID: PMC8395125 DOI: 10.3390/ijms22168397] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Revised: 08/02/2021] [Accepted: 08/03/2021] [Indexed: 12/18/2022] Open
Abstract
Phenolic acids possess many beneficial biological activities, including antioxidant and anti-inflammatory properties. Unfortunately, their low bioavailability restricts their potential medical uses, as it limits the concentration of phenolic acids achievable in the organism. The conjugation with phospholipids constitutes one of the most effective strategies to enhance compounds bioavailability in biological systems. In the present study, the conjugates of anisic (ANISA) and veratric acid (VA) with phosphatidylcholine (PC) were investigated. Since both ANISA and VA are inhibitors of tyrosinase, a melanocyte enzyme, the expression of which increases during tumorigenesis, anticancer potential of the conjugates was tested in several metastatic melanoma cell lines. The conjugates proved to be antiproliferative, apoptosis-inducing and cell-cycle-affecting agents, selective for cancerous cells and not affecting normal fibroblasts. The conjugates substituted by ANISA and VA, respectively, at both the sn-1 and sn-2 positions of PC, appeared the most promising, since they were effective against the vast majority of metastatic melanoma cell lines. Additionally, the conjugation of phenolic acids to PC increased their antioxidant activity. Molecular modeling was employed for the first time to estimate the features of the investigated conjugates relevant to their anticancer properties and membrane permeation. Again, the conjugates substituted by phenolic acid at both the sn-1 and sn-2 positions of PC seemed to be presumably most bioavailable.
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Affiliation(s)
- Anna Palko-Łabuz
- Department of Biophysics and Neuroscience, Wroclaw Medical University, ul. Chalubinskiego 3a, 50-368 Wroclaw, Poland; (A.P.-Ł.); (A.P.); (K.Ś.-P.)
| | - Anna Gliszczyńska
- Department of Chemistry, Wrocław University of Environmental and Life Sciences, Norwida 25, 50-375 Wrocław, Poland;
| | - Magdalena Skonieczna
- Department of Systems Biology and Engineering, The Silesian University of Technology, ul. Akademicka 16, 44-100 Gliwice, Poland;
- Biotechnology Centre, Silesian University of Technology, ul. Krzywoustego 8, 44-100 Gliwice, Poland
| | - Andrzej Poła
- Department of Biophysics and Neuroscience, Wroclaw Medical University, ul. Chalubinskiego 3a, 50-368 Wroclaw, Poland; (A.P.-Ł.); (A.P.); (K.Ś.-P.)
| | - Olga Wesołowska
- Department of Biophysics and Neuroscience, Wroclaw Medical University, ul. Chalubinskiego 3a, 50-368 Wroclaw, Poland; (A.P.-Ł.); (A.P.); (K.Ś.-P.)
| | - Kamila Środa-Pomianek
- Department of Biophysics and Neuroscience, Wroclaw Medical University, ul. Chalubinskiego 3a, 50-368 Wroclaw, Poland; (A.P.-Ł.); (A.P.); (K.Ś.-P.)
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Rajendran A, Sagadevan S, Lett J, Saravanan Kaliaraj G, Fatimah I, Mohammad F, Al-Lohedan HA, Alshahateet SF, Podder J. Synthesis, growth, supramolecularity and antibacterial efficacy of 3,4-dimethoxybenzoic acid single crystals. Chem Phys Lett 2021. [DOI: 10.1016/j.cplett.2020.138269] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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Hiramatsu G, Uta D, Mihara K, Andoh T, Kume T. Inhibitory effect of panaxytriol on BV-2 microglial cell activation. J Pharmacol Sci 2021; 145:273-278. [PMID: 33602508 DOI: 10.1016/j.jphs.2021.01.001] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2020] [Revised: 12/23/2020] [Accepted: 01/05/2021] [Indexed: 10/22/2022] Open
Abstract
Activated microglia induce brain inflammation and neuronal death. Panaxytriol, ((3R,9R,10R)-Heptadec-1-en-4,6-diyne-3,9,10-triol), is a component of Panax ginseng C. A. Meyer extracts and activates the Nrf2-ARE signaling pathway. However, little is known about its effects on activated microglia in the brain. In this study, we investigated the effect of panaxytriol on lipopolysaccharide (LPS)-induced activated microglia in BV-2 cells. Panaxytriol suppressed LPS-induced NO production and inhibited the increase in iNOS protein expression in BV-2 cells. Besides, panaxytriol inhibited the mRNA expression of proinflammatory cytokines such as TNF-α, IL-1β, and IL-6. The inhibitory effect of panaxytriol on microglia activation did not affect the Nrf2-ARE pathway and the MAPK pathway. However, panaxytriol suppressed LPS-induced NF-κB nuclear translocation. These results suggest that panaxytriol inhibits the LPS-induced activation of microglia via the inhibition of NF-κB signaling pathway.
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Affiliation(s)
- Genki Hiramatsu
- Department of Applied Pharmacology, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, 2630 Sugitani, Toyama-shi, Toyama, 930-0194, Japan
| | - Daisuke Uta
- Department of Applied Pharmacology, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, 2630 Sugitani, Toyama-shi, Toyama, 930-0194, Japan
| | - Kenichi Mihara
- KIM's Korean Ginseng Co. Ltd, 692 Tominaga-cho, Shimogyo-ku, Kyoto-shi, Kyoto, 600-8351, Japan
| | - Tsugunobu Andoh
- Department of Applied Pharmacology, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, 2630 Sugitani, Toyama-shi, Toyama, 930-0194, Japan; Department of Pharmacology and Pathophysiology College of Pharmacy Kinjo Gakuin University, Oomori 2-1723, Moriyama-ku, Nagoya-shi, Aichi, 463-8521, Japan
| | - Toshiaki Kume
- Department of Applied Pharmacology, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, 2630 Sugitani, Toyama-shi, Toyama, 930-0194, Japan.
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Kim JG, Kim MJ, Lee JS, Sydara K, Lee S, Byun S, Jung SK. Smilax guianensis Vitman Extract Prevents LPS-Induced Inflammation by Inhibiting the NF-κB Pathway in RAW 264.7 Cells. J Microbiol Biotechnol 2020; 30:822-829. [PMID: 32238770 PMCID: PMC9728178 DOI: 10.4014/jmb.1911.11042] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2019] [Accepted: 03/22/2020] [Indexed: 12/15/2022]
Abstract
Nutraceutical treatments can reduce inflammation and prevent the development of inflammatory diseases. In this study, the anti-inflammatory effects of Smilax guianensis Vitman extract (SGE) were examined. SGE suppressed lipopolysaccharide (LPS)-mediated nitrite production in RAW 264.7 cells. SGE also prevented the LPS-induced expression of inducible nitric oxide synthase (iNOS) but not cyclooxygenase (COX)-2. Western blot analysis showed that SGE attenuated LPS-induced phosphorylation of IκB kinase (IKK), inhibitor of kappa B (IκB), and p65. Additionally, SGE inhibited LPS-induced IκB degradation in RAW 264.7 cells. Western blot analysis of the cytosolic and nuclear fractions, as well as immunofluorescence assay results, revealed that SGE suppressed LPS-induced p65 nuclear translocation in RAW 264.7 cells. Moreover, SGE reduced LPS-induced interleukin (IL)- 1β, IL-6, and tumor necrosis factor-α (TNF-α) mRNA expression and IL-1β and IL-6 protein expression in RAW 264.7 cells. Collectively, these results indicate that SGE suppresses the NF-κB signaling pathway and thereby inhibits the production of NO, IL-1β, and IL-6.
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Affiliation(s)
- Ju Gyeong Kim
- School of Food Science and Biotechnology, Kyungpook National University, Daegu 4566, Republic of Korea
| | - Min Jeong Kim
- School of Food Science and Biotechnology, Kyungpook National University, Daegu 4566, Republic of Korea
| | - Ji Su Lee
- Division of Bioengineering, Incheon National University, Incheon 01, Republic of Korea
| | - Kongmany Sydara
- Ministry of Health, Institute of Traditional Medicine, Vientiane 116, Lao PDR
| | - Sangwoo Lee
- International Biological Material Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon 311, Republic of Korea
| | - Sanguine Byun
- Department of Biotechnology, Yonsei University, Seoul 03722, Republic of Korea
| | - Sung Keun Jung
- School of Food Science and Biotechnology, Kyungpook National University, Daegu 4566, Republic of Korea,Institute of Agricultural Science and Technology, Kyungpook National University, Daegu 415, Republic of Korea,Corresponding author Phone: +82-53-950-7764 Fax: +82-53-950-7762 E-mail:
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Lu S, Duan M, Guo Z, Zhou Y, Wu D, Zhang X, Wang Y, Ye C, Ju R, Li J, Zhang D, Zhu L. Carboxyamidotriazole exerts anti-inflammatory activity in lipopolysaccharide-induced RAW264.7 macrophages by inhibiting NF-κB and MAPKs pathways. Exp Ther Med 2020; 20:1455-1466. [PMID: 32742379 PMCID: PMC7388320 DOI: 10.3892/etm.2020.8889] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2019] [Accepted: 05/20/2020] [Indexed: 12/23/2022] Open
Abstract
Carboxyamidotriazole (CAI), originally developed as a non-cytotoxic anti-cancer drug, was shown to have anti-inflammatory activity according to recent studies in a number of animal models of inflammation. However, its mechanism of action has not been characterized. Therefore, the present study was performed to identify the anti-inflammatory action of CAI in lipopolysaccharide (LPS)-induced RAW 264.7 macrophages and to identify the signal transduction pathways involved. The in vitro results revealed that CAI had no direct effect on the activity of cyclooxygenase (COX), suggesting a different anti-inflammatory mechanism compared with that of COX-inhibiting non-steroidal anti-inflammatory drugs. Further investigation in RAW264.7 macrophages revealed that CAI decreased the production of nitric oxide via decreasing the LPS-stimulated expression of inducible nitric oxide synthase, and downregulated both mRNA and protein expression levels of the cytokines tumor necrosis factor-α, interleukin (IL)-1β, and IL-6. CAI also significantly reduced the increased DNA-binding activity of nuclear factor (NF)-κB induced by LPS stimulation. With respect to the mechanisms involved on NF-κB activity, CAI exhibited suppression of the phosphorylation and degradation of the inhibitor of nuclear factor-κBα (IκB), and decreased the phosphorylation levels of the p65 subunit and its subsequent nuclear translocation. In addition, CAI significantly decreased the phosphorylated forms of p38, JNK and ERK, which were increased following LPS stimulation, while the total expression levels of p38, JNK and ERK remained unaltered. The results in the present study indicate that CAI alleviates the inflammatory responses of RAW 264.7 macrophages in response to LPS stimulation via attenuating the activation of NF-κB and MAPK signaling pathways and decreasing the levels of pro-inflammatory mediators. This offers a novel perspective for understanding the anti-inflammatory mechanism of CAI and suggests its potential use as a therapeutic treatment in inflammatory diseases with excessive macrophage activation.
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Affiliation(s)
- Shan Lu
- Department of Pharmacology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and School of Basic Medicine, Peking Union Medical College, Beijing 100005, P.R. China
| | - Mengyuan Duan
- Department of Pharmacology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and School of Basic Medicine, Peking Union Medical College, Beijing 100005, P.R. China
| | - Zehao Guo
- Department of Pharmacology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and School of Basic Medicine, Peking Union Medical College, Beijing 100005, P.R. China
| | - Yongting Zhou
- Department of Pharmacology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and School of Basic Medicine, Peking Union Medical College, Beijing 100005, P.R. China
| | - Danwei Wu
- Department of Pharmacy, Beijing Jishuitan Hospital, Beijing 100035, P.R. China
| | - Xiaojuan Zhang
- Department of Pharmacology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and School of Basic Medicine, Peking Union Medical College, Beijing 100005, P.R. China
| | - Yicheng Wang
- Department of Pharmacology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and School of Basic Medicine, Peking Union Medical College, Beijing 100005, P.R. China
| | - Caiying Ye
- Department of Pharmacology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and School of Basic Medicine, Peking Union Medical College, Beijing 100005, P.R. China
| | - Rui Ju
- Department of Pharmacology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and School of Basic Medicine, Peking Union Medical College, Beijing 100005, P.R. China
| | - Juan Li
- Department of Pharmacology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and School of Basic Medicine, Peking Union Medical College, Beijing 100005, P.R. China
| | - Dechang Zhang
- Department of Pharmacology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and School of Basic Medicine, Peking Union Medical College, Beijing 100005, P.R. China
| | - Lei Zhu
- Department of Pharmacology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and School of Basic Medicine, Peking Union Medical College, Beijing 100005, P.R. China
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Lin H, Wu Y, Chen J, Huang S, Wang Y. (−)-4-O-(4-O-β-D-glucopyranosylcaffeoyl) Quinic Acid Inhibits the Function of Myeloid-Derived Suppressor Cells to Enhance the Efficacy of Anti-PD1 against Colon Cancer. Pharm Res 2018; 35:183. [DOI: 10.1007/s11095-018-2459-5] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2018] [Accepted: 07/09/2018] [Indexed: 01/04/2023]
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13
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Downregulation of p300 alleviates LPS-induced inflammatory injuries through regulation of RhoA/ROCK/NF-κB pathways in A549 cells. Biomed Pharmacother 2018; 97:369-374. [DOI: 10.1016/j.biopha.2017.10.104] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2017] [Revised: 10/18/2017] [Accepted: 10/21/2017] [Indexed: 12/26/2022] Open
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Shin JY, Kang JS, Byun HW, Ahn EK. Regulatory effects and molecular mechanism of Trigonostemon reidioides on lipopolysaccharide‑induced inflammatory responses in RAW264.7 cells. Mol Med Rep 2017; 16:5137-5142. [PMID: 28849132 PMCID: PMC5647046 DOI: 10.3892/mmr.2017.7297] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2016] [Accepted: 04/27/2017] [Indexed: 12/23/2022] Open
Abstract
Trigonostemon reidioides (Kurz) Craib has been traditionally used for the treatment of vomiting and asthma in Cambodia. However, the underlying molecular mechanisms of the anti‑inflammatory effect of T. reidioides extract remains unknown. The present study investigated the anti‑inflammatory activity and molecular action of an ethanol extract of T. reidioides (ETR) in lipopolysaccharide (LPS)‑induced RAW264.7 macrophage cells. Nitric oxide assays, ELISA, reverse transcription‑quantitative polymerase chain reaction and western blot analysis were used. ETR treatment inhibited the production of nitric oxide by downregulating inducible nitric oxide synthase expression, while exhibiting no significant cytotoxicity compared with macrophages treated with LPS‑alone. Consequently, ETR decreased the production of certain proinflammatory cytokines, including interleukin (IL)‑1β, IL‑6 and tumor necrosis factor‑α. Additionally, ETR inhibited the activation of mitogen‑activated protein kinases (MAPKs), including extracellular signal‑regulated kinase, c‑Jun N‑terminal kinase and p38 MAPK, as well as the phosphatidylinositol 3‑kinase (PI3K)/Akt signaling pathway. These effects were mediated by inhibition of the nuclear localization of nuclear factor κ‑B (NF‑κB). Taken together, the results of the present study demonstrate that ETR may exert an anti‑inflammatory effect by inhibiting the expression of inflammatory mediators and cytokines via downregulation of the NF‑κB, PI3K/Akt and the MAPK signaling pathways in LPS‑stimulated macrophages. Based on these results, we hypothesize that ETR may be a potential therapeutic agent for the treatment of inflammatory disorders.
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Affiliation(s)
- Ju Young Shin
- Bio‑Center, Gyeonggi Institute of Science and Technology Promotion, Suwon, Gyeonggi 443‑270, Republic of Korea
| | - Jae-Shin Kang
- Biological Genetic Resources Utilization Division, National Institute of Biological Resources, Incheon 404‑708, Republic of Korea
| | - Hye-Woo Byun
- Biological Genetic Resources Utilization Division, National Institute of Biological Resources, Incheon 404‑708, Republic of Korea
| | - Eun-Kyung Ahn
- Bio‑Center, Gyeonggi Institute of Science and Technology Promotion, Suwon, Gyeonggi 443‑270, Republic of Korea
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15
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Davis RJ, Moore EC, Clavijo PE, Friedman J, Cash H, Chen Z, Silvin C, Van Waes C, Allen C. Anti-PD-L1 Efficacy Can Be Enhanced by Inhibition of Myeloid-Derived Suppressor Cells with a Selective Inhibitor of PI3Kδ/γ. Cancer Res 2017; 77:2607-2619. [PMID: 28364000 PMCID: PMC5466078 DOI: 10.1158/0008-5472.can-16-2534] [Citation(s) in RCA: 161] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2016] [Revised: 10/24/2016] [Accepted: 03/10/2017] [Indexed: 01/10/2023]
Abstract
Checkpoint inhibitors are relatively inefficacious in head and neck cancers, despite an abundance of genetic alterations and a T-cell-inflamed phenotype. One significant barrier to efficacy may be the recruitment of myeloid-derived suppressor cells (MDSC) into the tumor microenvironment. Here we demonstrate functional inhibition of MDSC with IPI-145, an inhibitor of PI3Kδ and PI3Kγ isoforms, which enhances responses to PD-L1 blockade. Combination therapy induced CD8+ T lymphocyte-dependent primary tumor growth delay and prolonged survival only in T-cell-inflamed tumor models of head and neck cancers. However, higher doses of IPI-145 reversed the observed enhancement of anti-PD-L1 efficacy due to off-target suppression of the activity of tumor-infiltrating T lymphocytes. Together, our results offer a preclinical proof of concept for the low-dose use of isoform-specific PI3Kδ/γ inhibitors to suppress MDSC to enhance responses to immune checkpoint blockade. Cancer Res; 77(10); 2607-19. ©2017 AACR.
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Affiliation(s)
- Ruth J Davis
- Head and Neck Surgery Branch, National Institute on Deafness and Other Communication Disorders, NIH, Bethesda, Maryland
| | - Ellen C Moore
- Head and Neck Surgery Branch, National Institute on Deafness and Other Communication Disorders, NIH, Bethesda, Maryland
| | - Paul E Clavijo
- Head and Neck Surgery Branch, National Institute on Deafness and Other Communication Disorders, NIH, Bethesda, Maryland
| | - Jay Friedman
- Head and Neck Surgery Branch, National Institute on Deafness and Other Communication Disorders, NIH, Bethesda, Maryland
| | - Harrison Cash
- Head and Neck Surgery Branch, National Institute on Deafness and Other Communication Disorders, NIH, Bethesda, Maryland
| | - Zhong Chen
- Head and Neck Surgery Branch, National Institute on Deafness and Other Communication Disorders, NIH, Bethesda, Maryland
| | - Chris Silvin
- Head and Neck Surgery Branch, National Institute on Deafness and Other Communication Disorders, NIH, Bethesda, Maryland
| | - Carter Van Waes
- Head and Neck Surgery Branch, National Institute on Deafness and Other Communication Disorders, NIH, Bethesda, Maryland
| | - Clint Allen
- Head and Neck Surgery Branch, National Institute on Deafness and Other Communication Disorders, NIH, Bethesda, Maryland.
- Department of Otolaryngology-Head and Neck Surgery, Johns Hopkins School of Medicine, Baltimore, Maryland
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16
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Neuroprotective Role of Atractylenolide-I in an In Vitro and In Vivo Model of Parkinson's Disease. Nutrients 2017; 9:nu9050451. [PMID: 28468332 PMCID: PMC5452181 DOI: 10.3390/nu9050451] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2017] [Revised: 02/24/2017] [Accepted: 03/20/2017] [Indexed: 12/23/2022] Open
Abstract
Parkinson’s disease (PD) is an age-related neurological disorder characterized by a loss of dopaminergic neurons within the midbrain. Neuroinflammation has been nominated as one of the key pathogenic features of PD. Recently, the inadequate pharmacotherapy and adverse effects of conventional drugs have spurred the development of unconventional medications in the treatment of PD. The purpose of this study is to investigate the anti-neuroinflammatory mechanisms of Atractylenolide-I (ATR-I) in in vivo and in vitro models of PD. Nitrite assay was measured via Griess reaction in lipopolysaccharide (LPS) stimulated BV-2 cells. mRNA and protein levels were determined by a reverse transcription-polymerase chain reaction (RT-PCR) and immunoblot analysis, respectively. Further, flow cytometry, immunocytochemistry, and immunohistochemistry were employed in BV-2 cells and MPTP-intoxicated C57BL6/J mice. Pre-treatment with ATR-I attenuated the inflammatory response in BV-2 cells by abating the nuclear translocation of nuclear factor-κB (NF-κB) and by inducing heme oxygenase-1 (HO-1). The intraperitoneal administration of ATR-I reversed MPTP-induced behavioral deficits, decreased microglial activation, and conferred protection to dopaminergic neurons in the mouse model of PD. Our experimental reports establish the involvement of multiple benevolent molecular events by ATR-I in MPTP-induced toxicity, which may aid in the development of ATR-I as a new therapeutic agent for the treatment of PD.
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17
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Wang QB, Sun LY, Gong ZD, Du Y. Veratric Acid Inhibits LPS-Induced IL-6 and IL-8 Production in Human Gingival Fibroblasts. Inflammation 2015; 39:237-242. [DOI: 10.1007/s10753-015-0243-9] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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