1
|
Yang B, Li W, Saeki H, Shimizu Y, Joe GH. Maillard-type glycated collagen with alginate oligosaccharide suppresses inflammation and oxidative stress by attenuating the expression of LPS receptors Tlr4 and Cd14 in macrophages. Food Funct 2024; 15:3629-3639. [PMID: 38482590 DOI: 10.1039/d3fo02731g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/04/2024]
Abstract
Inflammation and oxidative stress contribute to noncommunicable diseases (NCDs), with macrophages playing pivotal roles. Glycated collagen through Maillard-type glycation holds promise for enhancing anti-inflammatory properties, but its mechanism remains unclear. This study investigates the cellular mechanism and aims to contribute to expanding collagen utilization. Collagen was glycated with alginate oligosaccharide (AO) and glucose (Glc: as a comparative case) at 60 °C and 35% relative humidity for up to 24 h (C-AO and C-Glc, respectively). The anti-inflammatory activities of both C-AO and C-Glc were evaluated using an LPS-stimulated macrophage model. 18 h AO-glycated collagen (C-AO18 h) was found to significantly reduce the production of nitric oxide and proinflammatory cytokines (TNF-α), interleukin-6 (IL-6), and interleukin-1β (IL-1β). In contrast, C-Glc did not exhibit enhanced anti-inflammatory activity during any of the glycation periods. The enhanced anti-inflammatory activity of C-AO18 h was attributed to its downregulating effect on LPS receptors (toll-like receptor 4, Tlr4; cluster of differentiation 14, Cd14) and myeloid differentiation primary response 88 (Myd88) mRNA expression, with suppression in receptor expression resulting in decreased phagocytic ability of macrophages against E. coli. In addition, compared with intact collagen, C-AO18 h exhibited improved antioxidant activity in the LPS-stimulated macrophage model, as it significantly upregulated superoxide dismutase (SOD) and catalase (CAT) activities while reducing malondialdehyde (MDA) levels. Overall, this study contributes to the development of collagen-based functional foods for mitigating inflammation and oxidative stress in NCDs.
Collapse
Affiliation(s)
- Boxue Yang
- Faculty of Fisheries Sciences, Hokkaido University, Minato 3, Hakodate, Hokkaido 041-8611, Japan.
- Liaoning Ocean and Fisheries Science Research Institute, Dalian, Liaoning, 116023, PR China
| | - Wenzhao Li
- Faculty of Fisheries Sciences, Hokkaido University, Minato 3, Hakodate, Hokkaido 041-8611, Japan.
| | - Hiroki Saeki
- Faculty of Fisheries Sciences, Hokkaido University, Minato 3, Hakodate, Hokkaido 041-8611, Japan.
| | - Yutaka Shimizu
- Faculty of Fisheries Sciences, Hokkaido University, Minato 3, Hakodate, Hokkaido 041-8611, Japan.
| | - Ga-Hyun Joe
- Faculty of Fisheries Sciences, Hokkaido University, Minato 3, Hakodate, Hokkaido 041-8611, Japan.
| |
Collapse
|
2
|
Lu Z, Wang H, Ishfaq M, Han Y, Zhang X, Li X, Wang B, Lu X, Gao B. Quercetin and AMPK: A Dynamic Duo in Alleviating MG-Induced Inflammation via the AMPK/SIRT1/NF-κB Pathway. Molecules 2023; 28:7388. [PMID: 37959807 PMCID: PMC10650132 DOI: 10.3390/molecules28217388] [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: 09/02/2023] [Revised: 10/07/2023] [Accepted: 10/13/2023] [Indexed: 11/15/2023] Open
Abstract
Mycoplasma gallisepticum (MG) is recognized as a principal causative agent of avian chronic respiratory disease, inflicting substantial economic losses upon the poultry industry. However, the extensive use of conventional antibiotics has resulted in the emergence of drug resistance and various challenges in their clinical application. Consequently, there is an urgent need to identify effective therapeutic agents for the prevention and treatment of mycoplasma-induced respiratory disease in avian species. AMP-activated protein kinase (AMPK) holds significant importance as a regulator of cellular energy metabolism and possesses the capacity to exert an anti-inflammatory effect by virtue of its downstream protein, SIRT1. This pathway has shown promise in counteracting the inflammatory responses triggered by pathogenic infections, thus providing a novel target for studying infectious inflammation. Quercetin possesses anti-inflammatory activity and has garnered attention as a potential alternative to antibiotics. However, there exists a gap in knowledge concerning the impact of this activation on MG-induced inflammatory damage. To address this knowledge gap, we employed AlphaFold2 prediction, molecular docking, and kinetic simulation methods to perform a systematic analysis. As expected, we found that both quercetin and the AMPK activator AICAR activate the chicken AMPKγ1 subunit in a similar manner, which was further validated at the cellular level. Our project aims to unravel the underlying mechanisms of quercetin's action as an agonist of AMPK against the inflammatory damage induced by MG infection. Accordingly, we evaluated the effects of quercetin on the prevention and treatment of air sac injury, lung morphology, immunohistochemistry, AMPK/SIRT1/NF-κB pathway activity, and inflammatory factors in MG-infected chickens. The results confirmed that quercetin effectively inhibits the secretion of pro-inflammatory cytokines such as IL-1β, TNF-α, and IL-6, leading to improved respiratory inflammation injury. Furthermore, quercetin was shown to enhance the levels of phosphorylated AMPK and SIRT1 while reducing the levels of phosphorylated P65 and pro-inflammatory factors. In conclusion, our study identifies the AMPK cascade signaling pathway as a novel cellular mediator responsible for quercetin's ability to counter MG-induced inflammatory damage. This finding highlights the potential significance of this pathway as an important target for anti-inflammatory drug research in the context of avian respiratory diseases.
Collapse
Affiliation(s)
- Ziyin Lu
- School of Life Science, Liaoning University, Chongshanzhong-Lu No. 66, Shenyang 110036, China; (Z.L.); (H.W.); (Y.H.); (X.Z.); (X.L.); (B.W.)
| | - Haozhen Wang
- School of Life Science, Liaoning University, Chongshanzhong-Lu No. 66, Shenyang 110036, China; (Z.L.); (H.W.); (Y.H.); (X.Z.); (X.L.); (B.W.)
| | - Muhammad Ishfaq
- College of Computer Science, Huanggang Normal University, Huanggang 438000, China;
| | - Yufang Han
- School of Life Science, Liaoning University, Chongshanzhong-Lu No. 66, Shenyang 110036, China; (Z.L.); (H.W.); (Y.H.); (X.Z.); (X.L.); (B.W.)
| | - Xiujin Zhang
- School of Life Science, Liaoning University, Chongshanzhong-Lu No. 66, Shenyang 110036, China; (Z.L.); (H.W.); (Y.H.); (X.Z.); (X.L.); (B.W.)
| | - Xiang Li
- School of Life Science, Liaoning University, Chongshanzhong-Lu No. 66, Shenyang 110036, China; (Z.L.); (H.W.); (Y.H.); (X.Z.); (X.L.); (B.W.)
| | - Baoqi Wang
- School of Life Science, Liaoning University, Chongshanzhong-Lu No. 66, Shenyang 110036, China; (Z.L.); (H.W.); (Y.H.); (X.Z.); (X.L.); (B.W.)
| | - Xiuli Lu
- School of Life Science, Liaoning University, Chongshanzhong-Lu No. 66, Shenyang 110036, China; (Z.L.); (H.W.); (Y.H.); (X.Z.); (X.L.); (B.W.)
| | - Bing Gao
- Department of Cell Biology and Genetics, Shenyang Medical College, Shenyang 110034, China
| |
Collapse
|
3
|
Yu S, Kim S, Kim J, Kim JW, Kim SY, Yeom B, Kim H, Choi WII, Sung D. Highly Water-Dispersed and Stable Deinoxanthin Nanocapsule for Effective Antioxidant and Anti-Inflammatory Activity. Int J Nanomedicine 2023; 18:4555-4565. [PMID: 37581101 PMCID: PMC10423574 DOI: 10.2147/ijn.s401808] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2023] [Accepted: 07/05/2023] [Indexed: 08/16/2023] Open
Abstract
Introduction Deinoxanthin (DX), a carotenoid, has excellent antioxidant and anti-inflammatory properties. However, owing to its lipophilicity, it is unfavorably dispersed in water and has low stability, limiting its application in cosmetics, food, and pharmaceuticals. Therefore, it is necessary to study nanoparticles to increase the loading capacity and stability of DX. Methods In this study, DX-loaded nanocapsules (DX@NCs) were prepared by nanoprecipitation by loading DX into nanocapsules. The size, polydispersity index, surface charge, and morphology of DX@NCs were confirmed through dynamic light scattering and transmission electron microscopy. The loading content and loading efficiency of DX in DX@NCs were analyzed using high-performance liquid chromatography. The antioxidant activity of DX@NCs was evaluated by DPPH assay and in vitro ROS. The biocompatibility of DX@NCs was evaluated using an in vitro MTT assay. In vitro NO analysis was performed to determine the effective anti-inflammatory efficacy of DX@NCs. Results DX@NCs exhibited increased stability and antioxidant efficacy owing to the improved water solubility of DX. The in situ and in vitro antioxidant activity of DX@NCs was higher than that of unloaded DX. In addition, it showed a strong anti-inflammatory effect by regulating the NO level in an in vitro cell model. Conclusion This study presents a nanocarrier to improve the water-soluble dispersion and stability of DX. These results demonstrate that DX@NC is a carrier with excellent stability and has a high potential for use in cosmetic and pharmaceutical applications owing to its antioxidant and anti-inflammatory effects.
Collapse
Affiliation(s)
- Sohyeon Yu
- Center for Bio-Healthcare Materials, Bio-Convergence Materials R&D Division, Korea Institute of Ceramic Engineering and Technology, Cheongju, 28160, Republic of Korea
- Department of Chemical Engineering, Hanyang University, Seoul, 04763, Republic of Korea
| | - Sangwoo Kim
- Center for Bio-Healthcare Materials, Bio-Convergence Materials R&D Division, Korea Institute of Ceramic Engineering and Technology, Cheongju, 28160, Republic of Korea
- Department of Chemical and Biomolecular Engineering, Yonsei University, Seoul, 03722, Republic of Korea
| | - Jisu Kim
- Center for Bio-Healthcare Materials, Bio-Convergence Materials R&D Division, Korea Institute of Ceramic Engineering and Technology, Cheongju, 28160, Republic of Korea
- Department of Chemical and Biomolecular Engineering, Yonsei University, Seoul, 03722, Republic of Korea
| | - Ji-Woong Kim
- Materials Science Research Institute, LABIO Co., Ltd, Seoul, 08501, Republic of Korea
| | - Su Young Kim
- Materials Science Research Institute, LABIO Co., Ltd, Seoul, 08501, Republic of Korea
| | - Bongjun Yeom
- Department of Chemical Engineering, Hanyang University, Seoul, 04763, Republic of Korea
| | - Hyungjun Kim
- Department of Chemistry and Bioscience, Kumoh National Institute of Technology, Gyeongbuk, 39177, Republic of Korea
| | - Won I I Choi
- Center for Bio-Healthcare Materials, Bio-Convergence Materials R&D Division, Korea Institute of Ceramic Engineering and Technology, Cheongju, 28160, Republic of Korea
| | - Daekyung Sung
- Center for Bio-Healthcare Materials, Bio-Convergence Materials R&D Division, Korea Institute of Ceramic Engineering and Technology, Cheongju, 28160, Republic of Korea
| |
Collapse
|
4
|
Sales AL, Iriondo-DeHond A, DePaula J, Ribeiro M, Ferreira IMPLVO, Miguel MAL, Del Castillo MD, Farah A. Intracellular Antioxidant and Anti-Inflammatory Effects and Bioactive Profiles of Coffee Cascara and Black Tea Kombucha Beverages. Foods 2023; 12:foods12091905. [PMID: 37174444 PMCID: PMC10177953 DOI: 10.3390/foods12091905] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Revised: 04/19/2023] [Accepted: 04/27/2023] [Indexed: 05/15/2023] Open
Abstract
Kombucha is a functional beverage obtained through fermentation of sweetened Camellia sinensis infusion by a symbiotic culture of bacteria and yeasts that exerts many beneficial biological effects, mostly related to its antioxidant and anti-inflammatory effects. Alternative raw materials have been used to create new kombucha or kombucha-like products. Coffee is the most important food commodity worldwide and generates large amounts of by-products during harvest and post-harvest processing. The main coffee by-product is the dried fruit skin and pulp, popularly known as cascara. To date, no studies have evaluated the potential bioactivity of coffee cascara kombucha. In this study, we aimed to measure and compare the effects of infusions and kombuchas made with arabica coffee cascaras (n = 2) and black tea leaves (n = 1), fermented for 0, 3, 6, and 9 days on the intracellular production of Reactive Oxygen Species (ROS) and Nitric Oxide (NO) in model cells. Oxidative stress was induced in HK-2 cells with indoxyl sulfate (IS) and high glucose (G). Inflammation was induced with lipopolysaccharide (LPS) in RAW 264.7 macrophage. The contents of phenolic compounds, caffeine, and other physicochemical parameters were evaluated. To the best of our knowledge, this is the first study providing information on the bioactive profile and on the potential biological effects of coffee cascara kombucha. Fermentation caused the release of bound phenolic compounds from the infusions, especially total chlorogenic acids, with an average increase from 5.4 to 10.7 mg/100 mL (98%) and 2.6-3.4 mg/100 mL (30%) in coffee cascara and black tea kombucha, respectively, up to day 9. All evaluated beverages reduced (p < 0.0001) similarly the intracellular ROS (41% reduction, on average) and uric acid (10-55%) concentrations in HK-2 model cells, reversing the induced oxidative stress. All beverages also reduced (p < 0.0001, 81-90%) NO formation in LPS-induced macrophages, exhibiting an anti-inflammatory effect. These potential health benefits may be mostly attributed to polyphenols and caffeine, whose contents were comparable in all beverages. Coffee cascara showed similar potential to C. sinensis to produce healthy beverages and support sustainable coffee production.
Collapse
Affiliation(s)
- Amanda L Sales
- Núcleo de Pesquisa em Café Prof. Luiz Carlos Trugo (NUPECAFÉ), Laboratório de Química e Bioatividade de Alimentos, Instituto de Nutrição, Universidade Federal do Rio de Janeiro, Avenida Carlos Chagas Filho, 373, CCS, Bl. J, Rio de Janeiro 21941-902, Brazil
- Laboratório de Biociencia de Alimentos, Instituto de Investigación em Ciencias de La Alimentación (CIAL) CSIC-UAM, Calle Nicolás Cabrera, 9, Campus de la Universidad Autónoma de Madrid, 28049 Madrid, Spain
| | - Amaia Iriondo-DeHond
- Laboratório de Biociencia de Alimentos, Instituto de Investigación em Ciencias de La Alimentación (CIAL) CSIC-UAM, Calle Nicolás Cabrera, 9, Campus de la Universidad Autónoma de Madrid, 28049 Madrid, Spain
- Departamento de Nutrición y Ciencia de los Alimentos, Sección Departamental de Nutrición y Ciencia de los Alimentos, Facultad de Veterinaria, Universidad Complutense, 28040 Madrid, Spain
| | - Juliana DePaula
- Núcleo de Pesquisa em Café Prof. Luiz Carlos Trugo (NUPECAFÉ), Laboratório de Química e Bioatividade de Alimentos, Instituto de Nutrição, Universidade Federal do Rio de Janeiro, Avenida Carlos Chagas Filho, 373, CCS, Bl. J, Rio de Janeiro 21941-902, Brazil
| | - Mafalda Ribeiro
- LAQV/REQUIMTE, Laboratório de Bromatologia e Hidrologia, Departamento de Ciências Químicas, Faculdade de Farmácia da Universidade do Porto, 4099-030 Porto, Portugal
| | - Isabel M P L V O Ferreira
- LAQV/REQUIMTE, Laboratório de Bromatologia e Hidrologia, Departamento de Ciências Químicas, Faculdade de Farmácia da Universidade do Porto, 4099-030 Porto, Portugal
| | - Marco Antonio L Miguel
- Laboratório de Microbiologia de Alimentos, Instituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de Janeiro, Avenida Carlos Chagas Filho, 373, CCS, Bl. I, Rio de Janeiro21941-902, Brazil
| | - María Dolores Del Castillo
- Laboratório de Biociencia de Alimentos, Instituto de Investigación em Ciencias de La Alimentación (CIAL) CSIC-UAM, Calle Nicolás Cabrera, 9, Campus de la Universidad Autónoma de Madrid, 28049 Madrid, Spain
| | - Adriana Farah
- Núcleo de Pesquisa em Café Prof. Luiz Carlos Trugo (NUPECAFÉ), Laboratório de Química e Bioatividade de Alimentos, Instituto de Nutrição, Universidade Federal do Rio de Janeiro, Avenida Carlos Chagas Filho, 373, CCS, Bl. J, Rio de Janeiro 21941-902, Brazil
| |
Collapse
|
5
|
Itoh T, Muramatsu M, Miyazono D, Koketsu M, Fujita S, Hashizume T. Phenolic Glycosides Citrulluside H and Citrulluside T Isolated From Young Watermelon ( Citrullus lanatus) Fruit Have Beneficial Effects Against Cutibacterium acnes-Induced Skin Inflammation. Nat Prod Commun 2023. [DOI: 10.1177/1934578x221143202] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Acne vulgaris, typically caused by Cutibacterium acnes ( C. acnes) involves chronic inflammation of the sebaceous follicles and is the most common skin disease, afflicting 85% of adolescents. We previously isolated 2 novel phenolic glycosides, 2-caffeoyl-3-hydroxy-3-methylbutyric 4′-β-D-glucopyranosyloxy-3′-hydroxybenzyl ester (citrulluside H [CH]) and 2-caffeoyl-3-hydroxy-3-methylbutyric 4′-β-d-glucopyranosyloxybenzyl ester (citrulluside T [CT]), from young fruits of watermelon ( Citrullus lanatus). Both compounds suppressed UVB-induced photoaging in human fibroblasts by scavenging intracellular reactive oxygen species (ROS) and thus might be useful as natural skin care ingredients. In this study, we examined the inhibitory effects of these phenolic glycosides on C. acnes growth and C.acnes-induced inflammation. Neither phenolic glycoside inhibited the growth of C. acnes. However, they both significantly suppressed toll-like receptor (TLR) 1/2 or TLR2/6/nuclear factor κB (NF-κB) signaling in heat-killed C. acnes (hk- C. acnes) -stimulated RAW264.7 cells. Additionally, both phenolic glycosides decreased the expression of M1 macrophage biomarkers (cluster of differentiation [ CD] 80, CD86, and inducible NO synthase [ iNOS]), suggesting that they attenuate M1 macrophage activation. These results indicated that both CH and CT are potential therapeutic substances against C. acnes-induced skin inflammation.
Collapse
Affiliation(s)
- Tomohiro Itoh
- Laboratory for Molecular Chemistry of Aquatic Materials, Department of Life Sciences, Graduate School of Bioresources, Mie University, Tsu, Mie, Japan
| | - Mai Muramatsu
- Department of Life Sciences and Chemistry, Faculty of Bioresources, Mie University, Tsu, Japan
| | - Daiki Miyazono
- Laboratory for Molecular Chemistry of Aquatic Materials, Department of Life Sciences, Graduate School of Bioresources, Mie University, Tsu, Mie, Japan
| | - Mamoru Koketsu
- Department of Chemistry and Biomolecular Science, Faculty of Engineering, Gifu University, Gifu, Japan
| | | | | |
Collapse
|
6
|
Luo JF, Zhou H, Lio CK. Akebia Saponin D Inhibits the Inflammatory Reaction by Inhibiting the IL-6-STAT3-DNMT3b Axis and Activating the Nrf2 Pathway. Molecules 2022; 27:molecules27196236. [PMID: 36234773 PMCID: PMC9614599 DOI: 10.3390/molecules27196236] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Revised: 08/17/2022] [Accepted: 09/13/2022] [Indexed: 11/28/2022] Open
Abstract
Akebia saponin D (ASD) is derived from the Dipsacus asper Wall. ex Henry, which is a traditional Chinese medicine commonly used to treat rheumatic arthritis (RA). However, the in-depth mechanism of the anti-inflammatory effect of ASD is still unclear. This study aimed to preliminarily explore the anti-inflammatory effect of ASD and the underlying mechanisms from the perspective of DNA methylation and inflammation-related pathways. We found that ASD significantly reduced the production of multiple inflammatory mediators, including nitric oxide (NO) and prostaglandin E2 (PGE2), in LPS-induced RAW264.7 cells. The expression of DNA methyltransferase (DNMT) 3b and inducible nitric oxide synthase (iNOS) was also obviously inhibited by the ASD treatment. The protein and mRNA levels of interleukin-6 (IL-6) and tumor necrosis factor-α (TNF-α) were also significantly inhibited by ASD. ASD inhibited the macrophage M1 phenotype, inhibited the high level of DNMT3b, and downregulated the signal transducer and activator of the transcription 3 (STAT3) pathway to exert its anti-inflammatory activity. Furthermore, DNMT3b siRNA and Nrf2 siRNA significantly promoted the anti-inflammatory effect of ASD. Our study demonstrates for the first time that ASD inhibits the IL-6-STAT3-DNMT3b axis and activates the nuclear factor-E2-related factor 2 (Nrf2) signaling pathway to achieve its inhibitory effect on inflammatory reactions.
Collapse
Affiliation(s)
- Jin-Fang Luo
- Basic Medical College, Guizhou University of Traditional Chinese Medicine, Guian District, Guiyang 550025, China
| | - Hua Zhou
- Faculty of Chinese Medicine, Macau University of Science and Technology and State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Taipa, Macao 999078, China
- Correspondence:
| | - Chon-Kit Lio
- Guangdong Provincial Hospital of Chinese Medicine, Guangdong Provincial Academy of Chinese Medical Sciences, State Key Laboratory of Dampness Syndrome of Chinese Medicine, Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangdong-Hong Kong-Macau Joint Lab on Chinese Medcine and Immune Disease Research, Guangzhou 510006, China
| |
Collapse
|
7
|
Quercetin Prevents LPS-Induced Oxidative Stress and Inflammation by Modulating NOX2/ROS/NF-kB in Lung Epithelial Cells. Molecules 2021; 26:molecules26226949. [PMID: 34834040 PMCID: PMC8625571 DOI: 10.3390/molecules26226949] [Citation(s) in RCA: 101] [Impact Index Per Article: 33.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Revised: 11/05/2021] [Accepted: 11/12/2021] [Indexed: 11/16/2022] Open
Abstract
Oxidative stress caused by the production of reactive oxygen species (ROS) plays a major role in inflammatory processes. We hypothesized that modulation of ROS via quercetin may protect against oxidative stress and inflammation. Thus, this study aimed to investigate the effects of quercetin on oxidative stress and inflammation in lung epithelial A549 cells. The lipopolysaccharide (LPS)-induced elevation of intracellular ROS levels was reduced after quercetin treatment, which also almost completely abolished the mRNA and protein expression of nicotinamide adenine dinucleotide phosphate oxidase 2 (NOX2) induced by LPS stimulation. In addition, quercetin suppressed the nuclear translocation of nuclear factor kappa B (NF-κB) and reduced levels of inflammatory cytokine tumor necrosis factor (TNF)-α, interleukin (IL)-1, and IL-6, which had increased significantly after LPS exposure. Our data demonstrated that quercetin decreased ROS-induced oxidative stress and inflammation by suppressing NOX2 production.
Collapse
|
8
|
Tao W, Fu T, He ZJ, Zhou HP, Hong Y. Immunomodulatory effects of Radix isatidis polysaccharides in vitro and in vivo. Exp Ther Med 2021; 22:1405. [PMID: 34675998 DOI: 10.3892/etm.2021.10841] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2021] [Accepted: 08/18/2021] [Indexed: 12/20/2022] Open
Abstract
Radix isatidis (R. isatidis) is a commonly used traditional Chinese herbal medicine, which has been used for thousands of years in China and is believed to have the pharmacological properties of heat-clearing and detoxification. Heat-clearing and detoxification are theories of traditional Chinese medicine meaning that R. isatidis could treat febrile disease by clearing heat and reducing swelling. Polysaccharides isolated from R. isatidis by water extraction and alcohol precipitation have exhibited numerous biological activities, including antiviral and immunomodulatory effects. The present study was performed to investigate the immunomodulatory effects of water-soluble R. isatidis polysaccharides (RIPs) on RAW264.7 macrophages and murine splenocytes, and attempt to preliminarily identify the mechanism of immunomodulation. In vitro, RIPs had a low cytotoxicity, as shown by CellTiter 96® AQueous One Solution Cell Proliferation Assay. RAW264.7 cells treated with different concentrations of RIP displayed different morphological changes, from a round shape and aggregation to polygonal shape and dispersion in a dose-dependent manner. In the 5 mg/ml RIP-treated group, the changes of morphology were as same as the lipopolysaccharide-treated group. RIP also significantly enhanced the release of nitric oxide as shown by Griess method, and the secretion of TNF-α and IL-6 in RAW264.7 cells was confirmed by ELISA assay. Western blotting revealed a significant increase of toll-like receptor-4 (TLR-4) in RIP-treated RAW264.7, suggesting that TLR-4 may be associated with the immunomodulatory mechanism of RIP. Animal experiments also demonstrated through ELISA assays a significant increase in IFN-γ and IL-10 levels after the splenocytes of RIP-immunized mice were stimulated by inactivated herpes simplex virus type 2. The immune function of RIP-immunized mice was improved. The present study suggested that RIP could be potentially used as a novel immunomodulator.
Collapse
Affiliation(s)
- Wei Tao
- School of Bioengineering, Hangzhou Medical College, Hangzhou, Zhejiang 310013, P.R. China
| | - Ting Fu
- School of Bioengineering, Hangzhou Medical College, Hangzhou, Zhejiang 310013, P.R. China
| | - Zhuo-Jing He
- School of Bioengineering, Hangzhou Medical College, Hangzhou, Zhejiang 310013, P.R. China
| | - Han-Peng Zhou
- School of Bioengineering, Hangzhou Medical College, Hangzhou, Zhejiang 310013, P.R. China
| | - Yan Hong
- School of Bioengineering, Hangzhou Medical College, Hangzhou, Zhejiang 310013, P.R. China
| |
Collapse
|
9
|
Yu C, Chen H, Du D, Lv W, Li S, Li D, Xu Z, Gao M, Hu H, Liu D. β-Glucan from Saccharomyces cerevisiae alleviates oxidative stress in LPS-stimulated RAW264.7 cells via Dectin-1/Nrf2/HO-1 signaling pathway. Cell Stress Chaperones 2021; 26:629-637. [PMID: 33880723 PMCID: PMC8275741 DOI: 10.1007/s12192-021-01205-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Revised: 04/02/2021] [Accepted: 04/06/2021] [Indexed: 12/13/2022] Open
Abstract
β-Glucan from Saccharomyces cerevisiae has been described to be effective antioxidants, but the specific antioxidation mechanism of β-glucan is unclear. The objectives of this research were to determine whether the β-glucan from Saccharomyces cerevisiae could regulate oxidative stress through the Dectin-1/Nrf2/HO-1 signaling pathway in lipopolysaccharides (LPS)-stimulated RAW264.7 cells. In this study, we examined the effects of β-glucan on the enzyme activity or production of oxidative stress indicators in LPS-stimulated RAW264.7 cells by biochemical analysis and the protein expression of key factors of Dectin-1/Nrf2/HO-1 signaling pathway by immunofluorescence and western blot. The biochemical analysis results showed that β-glucan increased the LPS-induced downregulation of enzyme activity of intracellular heme oxygenase (HO), superoxide dismutase (SOD), catalase (CAT), and glutathione peroxidase (GSH-Px) while decreasing the production of reactive oxygen species (ROS) and malondialdehyde (MDA). Furthermore, immunofluorescence results showed that β-glucan can activate the nuclear factor erythroid 2-related factor 2 (Nrf2). The antioxidant mechanism study indicated that β-glucan activated dendritic-cell-associated C-type lectin 1 (Dectin-1) receptors mediated Nrf2/HO-1 signaling pathway, thereby downregulating the production of ROS and thus produced the antioxidant effects in LPS-stimulated RAW 264.7 cells. In conclusion, these results indicate that β-glucan potently alleviated oxidative stress via Dectin-1/Nrf2/HO-1 in LPS-stimulated RAW 264.7 cells.
Collapse
Affiliation(s)
- Chunwei Yu
- College of Veterinary Medicine, Inner Mongolia Agricultural University, Hohhot, 010018, China
| | - Hui Chen
- College of Veterinary Medicine, Inner Mongolia Agricultural University, Hohhot, 010018, China
| | - Donghua Du
- College of Veterinary Medicine, Inner Mongolia Agricultural University, Hohhot, 010018, China
| | - Wenting Lv
- College of Veterinary Medicine, Inner Mongolia Agricultural University, Hohhot, 010018, China
| | - Songjian Li
- College of Veterinary Medicine, Inner Mongolia Agricultural University, Hohhot, 010018, China
| | - Dongfang Li
- College of Veterinary Medicine, Inner Mongolia Agricultural University, Hohhot, 010018, China
| | - Zixuan Xu
- College of Veterinary Medicine, Inner Mongolia Agricultural University, Hohhot, 010018, China
| | - Min Gao
- Inner Mongolia Academy of Agricultural and Animal Husbandry Sciences, Hohhot, 010018, China
| | - Honglian Hu
- Inner Mongolia Academy of Agricultural and Animal Husbandry Sciences, Hohhot, 010018, China
| | - Dacheng Liu
- College of Veterinary Medicine, Inner Mongolia Agricultural University, Hohhot, 010018, China.
| |
Collapse
|
10
|
Kang CM, Mo S, Jeon M, Jung UW, Shin Y, Shin JS, Shin BY, Lee SK, Choi HJ, Song JS. Intranuclear Delivery of Nuclear Factor-Kappa B p65 in a Rat Model of Tooth Replantation. Int J Mol Sci 2021; 22:ijms22041987. [PMID: 33671455 PMCID: PMC7922502 DOI: 10.3390/ijms22041987] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Revised: 02/14/2021] [Accepted: 02/16/2021] [Indexed: 01/25/2023] Open
Abstract
After avulsion and replantation, teeth are at risk of bone and root resorption. The present study aimed to demonstrate that the intra-nuclear transducible form of transcription modulation domain of p65 (nt-p65-TMD) can suppress osteoclast differentiation in vitro, and reduce bone resorption in a rat model of tooth replantation. Cell viability and nitric oxide release were evaluated in RAW264.7 cells using CCK-8 assay and Griess reaction kit. Osteoclast differentiation was evaluated using quantitative reverse transcriptase-polymerase chain reaction (RT-PCR) and tartrate-resistant acid phosphatase (TRAP) staining. Thirty-two maxillary rat molars were extracted and stored in saline (n = 10) or 10 µM nt-p65-TMD solution (n = 22) before replantation. After 4 weeks, specimens were scored according to the inflammatory pattern using micro-computed tomography (CT) imaging and histological analyses. nt-p65-TMD treatment resulted in significant reduction of nitric oxide release and osteoclast differentiation as studied using PCR and TRAP staining. Further, micro-CT analysis revealed a significant decrease in bone resorption in the nt-p65-TMD treatment group (p < 0.05). Histological analysis of nt-p65-TMD treatment group showed that not only bone and root resorption, but also inflammation of the periodontal ligament and epithelial insertion was significantly reduced. These findings suggest that nt-p65-TMD has the unique capabilities of regulating bone remodeling after tooth replantation.
Collapse
Affiliation(s)
- Chung-Min Kang
- Department of Pediatric Dentistry, College of Dentistry, Yonsei University, Seoul 03722, Korea; (C.-M.K.); (S.M.); (M.J.)
- Oral Science Research Center, College of Dentistry, Yonsei University, Seoul 03722, Korea;
| | - Seunghan Mo
- Department of Pediatric Dentistry, College of Dentistry, Yonsei University, Seoul 03722, Korea; (C.-M.K.); (S.M.); (M.J.)
| | - Mijeong Jeon
- Department of Pediatric Dentistry, College of Dentistry, Yonsei University, Seoul 03722, Korea; (C.-M.K.); (S.M.); (M.J.)
- Oral Science Research Center, College of Dentistry, Yonsei University, Seoul 03722, Korea;
| | - Ui-Won Jung
- Department of Periodontology, College of Dentistry, Yonsei University, Seoul 03722, Korea;
| | - Yooseok Shin
- Oral Science Research Center, College of Dentistry, Yonsei University, Seoul 03722, Korea;
- Department of Conservative Dentistry, College of Dentistry, Yonsei University, Seoul 03722, Korea
| | - Jin-Su Shin
- Department of Biotechnology, College of Life Science and Biotechnology, Yonsei University, Seoul 03722, Korea; (J.-S.S.); (B.-Y.S.); (S.-K.L.)
| | - Bo-Young Shin
- Department of Biotechnology, College of Life Science and Biotechnology, Yonsei University, Seoul 03722, Korea; (J.-S.S.); (B.-Y.S.); (S.-K.L.)
| | - Sang-Kyou Lee
- Department of Biotechnology, College of Life Science and Biotechnology, Yonsei University, Seoul 03722, Korea; (J.-S.S.); (B.-Y.S.); (S.-K.L.)
| | - Hyung-Jun Choi
- Department of Pediatric Dentistry, College of Dentistry, Yonsei University, Seoul 03722, Korea; (C.-M.K.); (S.M.); (M.J.)
- Oral Science Research Center, College of Dentistry, Yonsei University, Seoul 03722, Korea;
- Correspondence: (H.-J.C.); (J.S.S.); Tel.: +82-2-2228-3175 (H.-J.C.); +82-2-2228-3170 (J.S.S.); Fax: +82-2 365-7420 (H.-J.C.); +82-2 365-7420 (J.S.S.)
| | - Je Seon Song
- Department of Pediatric Dentistry, College of Dentistry, Yonsei University, Seoul 03722, Korea; (C.-M.K.); (S.M.); (M.J.)
- Oral Science Research Center, College of Dentistry, Yonsei University, Seoul 03722, Korea;
- Correspondence: (H.-J.C.); (J.S.S.); Tel.: +82-2-2228-3175 (H.-J.C.); +82-2-2228-3170 (J.S.S.); Fax: +82-2 365-7420 (H.-J.C.); +82-2 365-7420 (J.S.S.)
| |
Collapse
|
11
|
Wu PS, Jeng J, Yang JJ, Kao V, Yen JH, Wu MJ. Vernonia patula (Dryand.) Merr. and Leucas chinensis (Retz.) R. Brown exert anti-inflammatory activities and relieve oxidative stress via Nrf2 activation. JOURNAL OF ETHNOPHARMACOLOGY 2020; 262:113155. [PMID: 32736054 PMCID: PMC7385944 DOI: 10.1016/j.jep.2020.113155] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Revised: 06/26/2020] [Accepted: 07/02/2020] [Indexed: 06/11/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Vernonia patula (Dryand.) Merr. and Leucas chinensis (Retz.) R. Brown have anti-inflammatory properties and are popularly used as complementary and alternative medicine in Asia. AIM OF THE STUDY To investigate the underlying molecular mechanism and active chemicals in the ethanol extracts of V. patula (VP) and L. chinensis (LC). MATERIALS AND METHODS The inhibitory activities of VP and LC on lipopolysaccharide (LPS)-stimulated nitric oxide (NO) and interleukin-6 (IL-6) production were investigated in RAW264.7 macrophages and BV2 microglia. Downregulation of pro-inflammatory genes and upregulation of Nrf2 (NF-E2 p45-related factor 2)-ARE (antioxidant response element) pathway were investigated using RT-Q-PCR and Western blotting. Direct antioxidant capacities were measured using free radical scavenging and Folin-Ciocalteu assays. The flavonoids and triterpenes in VP and LC were identified by HPLC-ESI-MS. RESULTS VP and LC inhibited NO and IL-6 production and suppressed iNOS, IL-6, IL-1β and CCL2 gene expression. VP and LC were potent direct antioxidants and effective indirect antioxidants assayed by Nrf2 activation and induction of heme oxygenase (HO)-1, glutamate-cysteine ligase modifier subunit (GCLM) and NAD(P)H quinone oxidoreductase 1 (NQO1). Three flavonoids including apigenin (1), luteolin (2) and chryseriol (3), and one triterpene betulinic acid (4) were found in VP; while compounds 1-4 and oleanolic acid (5) were in LC. CONCLUSION Anti-inflammatory and antioxidant activities of VP and LC may be in great part attributed to the identified Nrf2 activating compounds, which induce expression of Phase II enzymes and attenuate the upregulation of pro-inflammatory genes.
Collapse
Affiliation(s)
- Pei-Shan Wu
- Department of Biotechnology, Chia Nan University of Pharmacy and Science, Tainan, 717, Taiwan
| | - Jingyueh Jeng
- Bachelor Program in Cosmeceutical and Biotech Industry, Chia Nan University of Pharmacy and Science, Tainan, 717, Taiwan; Department of Medicinal Chemistry, Chia Nan University of Pharmacy and Science, Tainan, 717, Taiwan
| | - Jeng-Jer Yang
- Bachelor Program in Pharmaceutical Botanicals & Health Applications, Chia Nan University of Pharmacy and Science, Tainan, 717, Taiwan; Department of Pharmacy, Chia Nan University of Pharmacy and Science, Tainan, 717, Taiwan
| | - Vivia Kao
- Bachelor Program in Cosmeceutical and Biotech Industry, Chia Nan University of Pharmacy and Science, Tainan, 717, Taiwan; Department of Pharmacy, Chia Nan University of Pharmacy and Science, Tainan, 717, Taiwan
| | - Jui-Hung Yen
- Department of Molecular Biology and Human Genetics, Tzu Chi University, Hualien, 970, Taiwan
| | - Ming-Jiuan Wu
- Department of Biotechnology, Chia Nan University of Pharmacy and Science, Tainan, 717, Taiwan.
| |
Collapse
|
12
|
Carbon Monoxide-Releasing Molecule-3 Ameliorates Acute Lung Injury in a Model of Hemorrhagic Shock and Resuscitation: Roles of p38MAPK Signaling Pathway. Shock 2020; 55:816-826. [PMID: 33105439 DOI: 10.1097/shk.0000000000001684] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
OBJECTIVE It was reported that carbon monoxide-releasing molecule-3 (CORM-3) administration immediately after hemorrhagic shock and resuscitation (HSR) ameliorates the HSR-induced acute lung injury (ALI); however, the specific mechanism of the protective effects against HSR-induced ALI remains unclear. METHODS To induce hemorrhagic shock, rats were bled to a mean arterial blood pressure of 30 mm Hg for 45 min and then resuscitated with shed blood via the left vein. CORM-3 (4 mg/kg or 8 mg/kg) was respectively administrated after HSR. Twelve hours post-HSR, lung injury was assessed by wet/dry (W/D) ratio, hematoxylin-eosin staining staining, and lung ultrasound; the apoptotic and pyroptotic macrophages were measured by immunofluorescence staining; and the expression of phosphorylated p38 mitogen activated protein kinase (p-p38MAPK) and total p38MAPK was measured by western blotting. SB203580 (5 mg/kg), a special inhibitor of p-p38MAPK, was administrated by abdominal cavity to assess the roles of p38MAPK in HSR-induced ALI. RESULTS Increased B-line score, lung injury score, and W/D ratio indicated the fact of ALI after HSR. Twelve hours post-HSR, CORM-3 administration significantly decreased the B-line score, lung injury score, W/D ratio, apoptotic and pyroptotic macrophages, and the expressions of p-p38MAPK. Further, SB203580 not only reduced HSR-induced ALI, but also enhanced the protective effects of CORM-3 against ALI. CONCLUSION We identified the protective effects of CORM-3 against HSR-induced ALI. The mechanism might be related to the inhibition of p38MAPK signaling pathway in lung macrophages.
Collapse
|
13
|
D'Ambrosio M, Bigagli E, Cinci L, Gori A, Brunetti C, Ferrini F, Luceri C. Ethyl acetate extract from Cistus x incanus L. leaves enriched in myricetin and quercetin derivatives, inhibits inflammatory mediators and activates Nrf2/HO-1 pathway in LPS-stimulated RAW 264.7 macrophages. ACTA ACUST UNITED AC 2020; 76:79-86. [PMID: 33027057 DOI: 10.1515/znc-2020-0053] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2020] [Accepted: 09/08/2020] [Indexed: 12/13/2022]
Abstract
Cistus x incanus L. is a Mediterranean evergreen shrub used in folk medicine for the treatment of inflammatory disorders but the underlying mechanisms are not fully understood. We therefore investigated the anti-inflammatory effects of an ethyl acetate fraction (EAF) from C. x incanus L. leaves on lipopolysaccharide (LPS) activated RAW 264.7 macrophages. HPLC analysis revealed myricetin and quercetin derivatives to be the major compounds in EAF; EAF up to 1 µM of total phenolic content, was not cytotoxic and inhibited the mRNA expression of interleukin-6 (IL-6) and cyclooxygenase-2 (COX-2) (p < 0.05) and the production of prostaglandins E2 (PGE2) (p < 0.05). Meanwhile, EAF triggered the mRNA expression of interleukin-10 (IL-10) and elicited the nuclear translocation of nuclear factor erythroid 2-related factor 2 (Nrf2), as well as the expression of its main target gene, heme oxygenase-1 (HO-1) (p < 0.05). These data indicate that EAF attenuates experimental inflammation via the inhibition of proinflammatory mediators and at least in part, by the activation of Nrf2/HO-1 pathway. These effects are likely due to myricetin and quercetin derivatives but the role of other, less abundant components cannot be excluded. Further studies to confirm the relevance of our findings in animal models and to highlight the relative contribution of each component to the anti-inflammatory activity of EAF should be conducted.
Collapse
Affiliation(s)
- Mario D'Ambrosio
- Department of Neuroscience, Psychology, Drug Research and Child Health (NEUROFARBA), Section of Pharmacology and Toxicology, University of Florence, Viale Pieraccini 6, 50139, Florence, Italy
| | - Elisabetta Bigagli
- Department of Neuroscience, Psychology, Drug Research and Child Health (NEUROFARBA), Section of Pharmacology and Toxicology, University of Florence, Viale Pieraccini 6, 50139, Florence, Italy
| | - Lorenzo Cinci
- Department of Neuroscience, Psychology, Drug Research and Child Health (NEUROFARBA), Section of Pharmacology and Toxicology, University of Florence, Viale Pieraccini 6, 50139, Florence, Italy
| | - Antonella Gori
- Department of Agriculture, Environment, Food and Forestry (DAGRI), University of Florence, Piazzale delle Cascine 18, 50144, Florence, Italy.,Institute for Sustainable Plant Protection, National Research Council of Italy (CNR), Via Madonna del Piano 10, Sesto Fiorentino, 50019Florence, Italy
| | - Cecilia Brunetti
- Institute for Sustainable Plant Protection, National Research Council of Italy (CNR), Via Madonna del Piano 10, Sesto Fiorentino, 50019Florence, Italy
| | - Francesco Ferrini
- Department of Agriculture, Environment, Food and Forestry (DAGRI), University of Florence, Piazzale delle Cascine 18, 50144, Florence, Italy
| | - Cristina Luceri
- Department of Neuroscience, Psychology, Drug Research and Child Health (NEUROFARBA), Section of Pharmacology and Toxicology, University of Florence, Viale Pieraccini 6, 50139, Florence, Italy
| |
Collapse
|
14
|
Jang M, Hwang I, Hwang B, Kim G. Anti-inflammatory effect of Antirrhinum majus extract in lipopolysaccharide-stimulated RAW 264.7 macrophages. Food Sci Nutr 2020; 8:5063-5070. [PMID: 32994966 PMCID: PMC7500786 DOI: 10.1002/fsn3.1805] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2020] [Revised: 07/08/2020] [Accepted: 07/14/2020] [Indexed: 11/23/2022] Open
Abstract
Antirrhinum majus (AM) has attracted attention as a rich source of phytochemicals, which are beneficial for human health. However, the anti-inflammatory effects of AM have not been studied scientifically. Therefore, we investigated the antioxidative properties and anti-inflammatory effects of AM extract (AME) in lipopolysaccharide (LPS)-stimulated RAW 264.7 macrophages. AME showed high radical-scavenging ability. Viability of RAW 264.7 cells was not significantly altered by AME at the concentrations of 0-300 µg/ml. LPS-induced nitric oxide (NO) production was decreased by treatment with 0-300 µg/ml AME in a concentration-dependent manner. AME pretreatment significantly inhibited the protein expression of inducible nitric oxide synthase (iNOS) and cyclooxygenase-2 (COX-2) in a concentration-dependent manner. AME also considerably inhibited the mRNA and protein expression of inflammatory cytokines, such as tumor necrosis factor-a (TNF-α), interleukin-1 β (IL-1β), and interleukin-6 (IL-6). These findings provide a foundation for further studies and use of AM in nutraceuticals.
Collapse
Affiliation(s)
- Mi Jang
- National Academy of Agricultural ScienceRural Development AdministrationJeonjuKorea
| | - Inguk Hwang
- National Academy of Agricultural ScienceRural Development AdministrationJeonjuKorea
| | - Byungsoon Hwang
- National Academy of Agricultural ScienceRural Development AdministrationJeonjuKorea
| | - Gichang Kim
- National Academy of Agricultural ScienceRural Development AdministrationJeonjuKorea
| |
Collapse
|
15
|
Chen YF, Wu SN, Gao JM, Liao ZY, Tseng YT, Fülöp F, Chang FR, Lo YC. The Antioxidant, Anti-Inflammatory, and Neuroprotective Properties of the Synthetic Chalcone Derivative AN07. Molecules 2020; 25:molecules25122907. [PMID: 32599797 PMCID: PMC7355731 DOI: 10.3390/molecules25122907] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2020] [Revised: 06/16/2020] [Accepted: 06/23/2020] [Indexed: 12/25/2022] Open
Abstract
Chalcones belong to a class of biologically active polyphenolic natural products. As a result of their simple chemical nature, they are easily synthesized and show a variety of promising biological activities. 2-Hydroxy-4′-methoxychalcone (AN07) is a synthetic chalcone derivate with potential anti-atherosclerosis effects. In this study, we demonstrated the novel antioxidant, anti-inflammatory, and neuroprotective effects of AN07. In RAW 264.7 macrophages, AN07 attenuated lipopolysaccharide (LPS)-induced elevations in reactive oxygen species (ROS) level and oxidative stress via down-regulating gp91phox expression and stimulating the antioxidant system of nuclear factor erythroid 2-related factor 2 (Nrf2) and heme oxygenase-1 (HO-1) pathways, which were accompanied by increased glutathione (GSH) levels. Additionally, AN07 attenuated LPS-induced inflammatory factors, including NO, inducible NO synthase (iNOS), cyclooxygenase-2 (COX-2), and phosphorylated inhibitor of nuclear factor kappa B-alpha (p-IκBα) in RAW 264.7 macrophages. However, the effects of AN07 on promoting nuclear Nrf2 levels and decreasing COX-2 expressions were significantly abrogated by the peroxisome proliferator-activated receptor-γ (PPARγ) antagonist GW9662. In human dopaminergic SH-SY5Y cells treated with or without methylglyoxal (MG), a toxic endogenous by-product of glycolysis, AN07 up-regulated neurotrophic signals including insulin-like growth factor 1 receptor (IGF-1R), p-Akt, p-GSK3β, glucagon-like peptide 1 receptor (GLP-1R), and brain-derived neurotrophic factor (BDNF). AN07 attenuated MG-induced apoptosis by up-regulating the B-cell lymphoma 2 (Bcl-2) protein and down-regulating the cytosolic expression of cytochrome c. AN07 also attenuated MG-induced neurite damage via down-regulating the Rho-associated protein kinase 2 (ROCK2)/phosphorylated LIM kinase 1 (p-LIMK1) pathway. Moreover, AN07 ameliorated the MG-induced down-regulation of neuroprotective Parkinsonism-associated proteins parkin, pink1, and DJ-1. These findings suggest that AN07 possesses the potentials to be an anti-inflammatory, antioxidant, and neuroprotective agent
Collapse
Affiliation(s)
- Yih-Fung Chen
- Graduate Institute of Natural Products, College of Pharmacy, Kaohsiung Medical University, Kaohsiung 80708, Taiwan; (Y.-F.C.); (F.-R.C.)
- Department of Medical Research, Kaohsiung Medical University Hospital, Kaohsiung 80708, Taiwan
- Drug Development and Value Creation Research Center, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
| | - Sheng-Nan Wu
- Department of Physiology, National Cheng Kung University Medical College, Tainan City 70101, Taiwan;
| | - Jia-Mao Gao
- Department of Pharmacology, School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 80708, Taiwan; (J.-M.G.); (Z.-Y.L.); (Y.-T.T.)
| | - Zhi-Yao Liao
- Department of Pharmacology, School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 80708, Taiwan; (J.-M.G.); (Z.-Y.L.); (Y.-T.T.)
| | - Yu-Ting Tseng
- Department of Pharmacology, School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 80708, Taiwan; (J.-M.G.); (Z.-Y.L.); (Y.-T.T.)
| | - Ferenc Fülöp
- Institute of Pharmaceutical Chemistry, University of Szeged, Eötvös u. 6, H-6720 Szeged, Hungary;
- MTA-SZTE Stereochemistry Research Group, Hungarian Academy of Sciences, Eötvös u. 6, H-6720 Szeged, Hungary
| | - Fang-Rong Chang
- Graduate Institute of Natural Products, College of Pharmacy, Kaohsiung Medical University, Kaohsiung 80708, Taiwan; (Y.-F.C.); (F.-R.C.)
- Department of Medical Research, Kaohsiung Medical University Hospital, Kaohsiung 80708, Taiwan
- Drug Development and Value Creation Research Center, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
| | - Yi-Ching Lo
- Graduate Institute of Natural Products, College of Pharmacy, Kaohsiung Medical University, Kaohsiung 80708, Taiwan; (Y.-F.C.); (F.-R.C.)
- Department of Medical Research, Kaohsiung Medical University Hospital, Kaohsiung 80708, Taiwan
- Department of Pharmacology, School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 80708, Taiwan; (J.-M.G.); (Z.-Y.L.); (Y.-T.T.)
- Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
- Correspondence: ; Tel.: +886-7312-1101 (ext. 2139)
| |
Collapse
|
16
|
Hu WH, Wang HY, Xia YT, Dai DK, Xiong QP, Dong TTX, Duan R, Chan GKL, Qin QW, Tsim KWK. Kaempferol, a Major Flavonoid in Ginkgo Folium, Potentiates Angiogenic Functions in Cultured Endothelial Cells by Binding to Vascular Endothelial Growth Factor. Front Pharmacol 2020; 11:526. [PMID: 32410995 PMCID: PMC7198864 DOI: 10.3389/fphar.2020.00526] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Accepted: 04/03/2020] [Indexed: 12/24/2022] Open
Abstract
Kaempferol is a major flavonoid in Ginkgo Folium and other edible plants, which is being proposed here to have roles in angiogenesis. Angiogenesis is important in both physiological and pathological development. Here, kaempferol was shown to bind with vascular endothelial growth factor (VEGF), probably in the heparin binding domain of VEGF: this binding potentiated the angiogenic functions of VEGF in various culture models. Kaempferol potentiated the VEGF-induced cell motility in human umbilical vein endothelial cells (HUVECs), as well as the sub-intestinal vessel sprouting in zebrafish embryos and formation of microvascular in rat aortic ring. In cultured HUVECs, application of kaempferol strongly potentiated the VEGF-induced phosphorylations of VEGFR2, endothelial nitric oxide synthase (eNOS) and extracellular signal-regulated kinase (Erk) in time-dependent and concentration-dependent manners, and in parallel the VEGF-mediated expressions of matrix metalloproteinases (MMPs), MMP-2 and MMP-9, were significantly enhanced. In addition, the potentiation effect of kaempferol was revealed in VEGF-induced migration of skin cell and monocyte. Taken together, our results suggested the pharmacological roles of kaempferol in potentiating VEGF-mediated functions should be considered.
Collapse
Affiliation(s)
- Wei-Hui Hu
- Shenzhen Key Laboratory of Edible and Medicinal Bioresources, The Hong Kong University of Science and Technology, Nanshan, Shenzhen, China.,Division of Life Science and State Key Laboratory of Molecular Neuroscience, The Hong Kong University of Science and Technology, Hong Kong, Hong Kong.,Joint Laboratory of Guangdong Province and Hong Kong Region on Marine Bioresource Conservation and Exploitation, College of Marine Sciences, South China Agricultural University, Guangzhou, China
| | - Huai-You Wang
- Shenzhen Key Laboratory of Edible and Medicinal Bioresources, The Hong Kong University of Science and Technology, Nanshan, Shenzhen, China.,Division of Life Science and State Key Laboratory of Molecular Neuroscience, The Hong Kong University of Science and Technology, Hong Kong, Hong Kong
| | - Yi-Teng Xia
- Shenzhen Key Laboratory of Edible and Medicinal Bioresources, The Hong Kong University of Science and Technology, Nanshan, Shenzhen, China.,Division of Life Science and State Key Laboratory of Molecular Neuroscience, The Hong Kong University of Science and Technology, Hong Kong, Hong Kong
| | - Diana Kun Dai
- Shenzhen Key Laboratory of Edible and Medicinal Bioresources, The Hong Kong University of Science and Technology, Nanshan, Shenzhen, China.,Division of Life Science and State Key Laboratory of Molecular Neuroscience, The Hong Kong University of Science and Technology, Hong Kong, Hong Kong
| | - Qing-Ping Xiong
- Division of Life Science and State Key Laboratory of Molecular Neuroscience, The Hong Kong University of Science and Technology, Hong Kong, Hong Kong.,Jiangsu Key Laboratory of Regional Resource Exploitation and Medicinal Research, Huaiyin Institute of Technology, Jiangsu, China
| | - Tina Ting-Xia Dong
- Shenzhen Key Laboratory of Edible and Medicinal Bioresources, The Hong Kong University of Science and Technology, Nanshan, Shenzhen, China.,Division of Life Science and State Key Laboratory of Molecular Neuroscience, The Hong Kong University of Science and Technology, Hong Kong, Hong Kong
| | - Ran Duan
- Shenzhen Key Laboratory of Edible and Medicinal Bioresources, The Hong Kong University of Science and Technology, Nanshan, Shenzhen, China.,Division of Life Science and State Key Laboratory of Molecular Neuroscience, The Hong Kong University of Science and Technology, Hong Kong, Hong Kong
| | - Gallant Kar-Lun Chan
- Shenzhen Key Laboratory of Edible and Medicinal Bioresources, The Hong Kong University of Science and Technology, Nanshan, Shenzhen, China.,Division of Life Science and State Key Laboratory of Molecular Neuroscience, The Hong Kong University of Science and Technology, Hong Kong, Hong Kong
| | - Qi-Wei Qin
- Joint Laboratory of Guangdong Province and Hong Kong Region on Marine Bioresource Conservation and Exploitation, College of Marine Sciences, South China Agricultural University, Guangzhou, China
| | - Karl Wah-Keung Tsim
- Shenzhen Key Laboratory of Edible and Medicinal Bioresources, The Hong Kong University of Science and Technology, Nanshan, Shenzhen, China.,Division of Life Science and State Key Laboratory of Molecular Neuroscience, The Hong Kong University of Science and Technology, Hong Kong, Hong Kong
| |
Collapse
|
17
|
Nardosinanone N suppresses LPS-induced macrophage activation by modulating the Nrf2 pathway and mPGES-1. Biochem Pharmacol 2020; 173:113639. [DOI: 10.1016/j.bcp.2019.113639] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2019] [Accepted: 09/12/2019] [Indexed: 12/13/2022]
|
18
|
Quercetin Promotes Diabetic Wound Healing via Switching Macrophages From M1 to M2 Polarization. J Surg Res 2020; 246:213-223. [DOI: 10.1016/j.jss.2019.09.011] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2019] [Revised: 08/06/2019] [Accepted: 09/12/2019] [Indexed: 12/11/2022]
|
19
|
De Canha MN, Komarnytsky S, Langhansova L, Lall N. Exploring the Anti-Acne Potential of Impepho [ Helichrysum odoratissimum (L.) Sweet] to Combat Cutibacterium acnes Virulence. Front Pharmacol 2020; 10:1559. [PMID: 32082144 PMCID: PMC7002546 DOI: 10.3389/fphar.2019.01559] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2019] [Accepted: 12/03/2019] [Indexed: 12/14/2022] Open
Abstract
The Gram-positive bacterium Cutibacterium acnes (previously Propionibacterium acnes), plays an important role in the pathogenesis and progression of the dermatological skin disorder acne vulgaris. The methanolic extract of Helichrysum odoratissimum (L.) Sweet (HO-MeOH) was investigated for its ability to target bacterial growth and pathogenic virulence factors associated with acne progression. The gas chromatography-mass spectrometry (GC-MS) analysis of HO-MeOH identified α-humulene (3.94%), α-curcumene (3.74%), and caryophyllene (8.12%) as major constituents, which correlated with previous reports of other Helichrysum species. The HO-MeOH extract exhibited potent antimicrobial activity against C. acnes (ATCC 6919) with a minimum inhibitory concentration (MIC) of 7.81 µg/ml. It enhanced the antimicrobial activity of benzoyl peroxide (BPO). The extract showed high specificity against C. acnes cell aggregation at sub-inhibitory concentrations, preventing biofilm formation. Mature C. acnes biofilms were disrupted at a sub-inhibitory concentration of 3.91 µg/ml. At 100 µg/ml, HO-MeOH reduced interleukin-1α (IL-1α) cytokine levels in C. acnes-induced human keratinocytes (HaCaT) by 11.08%, highlighting its potential as a comedolytic agent for the treatment of comedonal acne. The extract exhibited a 50% inhibitory concentration (IC50) of 157.50 µg/ml against lipase enzyme activity, an enzyme responsible for sebum degradation, ultimately causing inflammation. The extract's anti-inflammatory activity was tested against various targets associated with inflammatory activation by the bacterium. The extract inhibited pro-inflammatory cytokine levels of IL-8 by 48.31% when compared to C. acnes-induced HaCaT cells at 7.81 µg/ml. It exhibited cyclooxygenase-II (COX-II) enzyme inhibition with an IC50 of 22.87 µg/ml. Intracellular nitric oxide (NO) was inhibited by 40.39% at 7.81 µg/ml when compared with NO production in lipopolysaccharide (LPS)-induced RAW264.7 cells. The intracellular NO inhibition was potentially due to the 2.14 fold reduction of inducible nitric oxide synthase (iNOS) gene expression. The HO-MeOH extract exhibited an IC50 of 145.45 µg/ml against virulent hyaluronidase enzyme activity, which is responsible for hyaluronan degradation and scar formation. This study provides scientific validation for the traditional use of H. odoratissimum as an ointment for pimples, not only due to its ability to control C. acnes proliferation but also due to its inhibitory activity on various targets associated with bacterial virulence leading to acne progression.
Collapse
Affiliation(s)
- Marco Nuno De Canha
- Department of Plant and Soil Sciences, University of Pretoria, Pretoria, South Africa
| | - Slavko Komarnytsky
- Department of Food, Bioprocessing and Nutrition Sciences, Plants for Human Health Institute, North Carolina State University, Kannapolis, NC, United States
| | - Lenka Langhansova
- Laboratory of Plant Biotechnologies, Institute of Experimental Botany, The Czech Academy of Sciences, Prague, Czechia
| | - Namrita Lall
- Department of Plant and Soil Sciences, University of Pretoria, Pretoria, South Africa
- School of Natural Resources, University of Missouri, Columbia, MO, United States
- College of Pharmacy, JSS Academy of Higher Education and Research, Mysuru, India
| |
Collapse
|
20
|
Enzyme Treatment Alters the Anti-Inflammatory Activity of the Water Extract of Wheat Germ In Vitro and In Vivo. Nutrients 2019; 11:nu11102490. [PMID: 31623257 PMCID: PMC6835500 DOI: 10.3390/nu11102490] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2019] [Revised: 10/02/2019] [Accepted: 10/15/2019] [Indexed: 01/18/2023] Open
Abstract
Wheat germ is rich in quinones that exist as glycosides. In this study, we used Celluclast 1.5L to release the hydroxyquinones, which turn into benzoquinone, and prepared the water extract from enzyme-treated wheat germ (EWG). We investigated whether enzyme treatment altered the anti-inflammatory activity compared to the water extract of untreated wheat germ (UWG). UWG inhibited the production of inducible nitric oxide synthase (iNOS) and interleukin (IL)-12 and induced the production of IL-10 and heme oxygenase (HO)-1 in lipopolysaccharide (LPS)-stimulated macrophages. Enzyme treatment resulted in greater inhibition of iNOS and IL-10 and induction of HO-1 compared to UWG, possibly involving the modulation of nuclear factor (NF)-κB, activator protein 1 (AP-1) and nuclear factor erythroid 2-related factor (Nrf2). Mice fed UWG or EWG had decreased serum tumor necrosis factor (TNF)-α and increased serum IL-10 levels after intraperitoneal injection of LPS, with UWG being more effective for IL-10 and EWG more effective for TNF-α. Hepatic HO-1 gene was only expressed in mice fed EWG. We provide evidence that enzyme treatment is a useful biotechnology tool for extracting active compounds from wheat germ.
Collapse
|
21
|
Dong H, Zheng L, Duan X, Zhao W, Chen J, Liu S, Sui G. Cytotoxicity analysis of ambient fine particle in BEAS-2B cells on an air-liquid interface (ALI) microfluidics system. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 677:108-119. [PMID: 31054440 DOI: 10.1016/j.scitotenv.2019.04.203] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2018] [Revised: 04/04/2019] [Accepted: 04/12/2019] [Indexed: 06/09/2023]
Abstract
Ambient fine particle is a crucial indicator of air pollution brought into the air by sundry natural and public events. However, a comprehensive understanding of the PM2.5-induced cytotoxicity especially the contribution of bioaerosol part is still undiscovered. Herein, an ALI microfluidics system integrated multi-omics (iTRAQ & RNA-seq) was successfully utilized to recognize the molecular mechanisms induced by microorganisms carried bioaerosol in human lung epithelial cells. The cells viability was above 98% within 21 days on this system. Moreover, the results showed that eight microorganisms-related pathways (e.g., Salmonella, amoebiasis, HTLV-1) were activated after exposure to PM2.5 for 24 h, which played a certain proportion in contributing to inflammation reaction. In addition, multi-omics demonstrated that three inflammation-related signal transduction cascades including MAPK signaling pathway, TNF signaling pathway, and TGF signaling pathway were triggered by fine particles, ultimately leading to apoptosis-related process disorder by associated cytokines like TNF, IL6, and TGF-β. Furthermore, flow cytometry analysis showed that the cell apoptosis rate increased from 3.8% to 66.7% between the cells exposed to PM2.5 (10 μg/cm2) for 24 h and untreated control cells, which indicated that the fine particles had the ability to activate apoptosis-related signal cascades and result in apoptosis. ELISA assay and western blot indicated that HO-1, JNK, IL6, TNF, NF-κB, and FGF14 were significantly increased after exposure to PM2.5 while Casp3 and FGFR were decreased, which were consistent with the multi-omics. Moreover, PM2.5 components (OC, EC, 16PAHs, As, Cu, Mn, Cl-, and NO3-) were significantly correlated to the inflammation related proteins and cytokines, which played a vital role in the inflammation and apoptosis related signaling pathways. These findings pointed to strong links among microorganisms infection, inflammation, and apoptosis in cell response to PM2.5 carried microorganisms. It also provided a new approach for understanding PM2.5-induced cytotoxicity and health risks.
Collapse
Affiliation(s)
- Heng Dong
- Shanghai Key laboratory of Atmospheric Particle Pollution Prevention (LAP3), Department of Environmental Science & Engineering, Fudan University, 220 Handan Road, Shanghai 200433, PR China
| | - Lulu Zheng
- Shanghai Key laboratory of Atmospheric Particle Pollution Prevention (LAP3), Department of Environmental Science & Engineering, Fudan University, 220 Handan Road, Shanghai 200433, PR China; Engineering Research Center of Optical Instrument and System, Ministry of Education, Shanghai Key Lab of Modern Optical System, University of Shanghai for Science and Technology, 516 Jungong Road, Shanghai 200093, PR China
| | - Xiaoxiao Duan
- Shanghai Key laboratory of Atmospheric Particle Pollution Prevention (LAP3), Department of Environmental Science & Engineering, Fudan University, 220 Handan Road, Shanghai 200433, PR China
| | - Wang Zhao
- Shanghai Key laboratory of Atmospheric Particle Pollution Prevention (LAP3), Department of Environmental Science & Engineering, Fudan University, 220 Handan Road, Shanghai 200433, PR China
| | - Jianmin Chen
- Shanghai Key laboratory of Atmospheric Particle Pollution Prevention (LAP3), Department of Environmental Science & Engineering, Fudan University, 220 Handan Road, Shanghai 200433, PR China
| | - Sixiu Liu
- Shanghai Key laboratory of Atmospheric Particle Pollution Prevention (LAP3), Department of Environmental Science & Engineering, Fudan University, 220 Handan Road, Shanghai 200433, PR China.
| | - Guodong Sui
- Shanghai Key laboratory of Atmospheric Particle Pollution Prevention (LAP3), Department of Environmental Science & Engineering, Fudan University, 220 Handan Road, Shanghai 200433, PR China.
| |
Collapse
|
22
|
Zielińska-Wasielica J, Olejnik A, Kowalska K, Olkowicz M, Dembczyński R. Elderberry ( Sambucus nigra L.) Fruit Extract Alleviates Oxidative Stress, Insulin Resistance, and Inflammation in Hypertrophied 3T3-L1 Adipocytes and Activated RAW 264.7 Macrophages. Foods 2019; 8:E326. [PMID: 31398785 PMCID: PMC6724042 DOI: 10.3390/foods8080326] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2019] [Revised: 08/03/2019] [Accepted: 08/04/2019] [Indexed: 12/26/2022] Open
Abstract
Oxidative stress and inflammation in hypertrophied adipose tissue with excessive fat accumulation play a crucial role in the development of obesity and accompanying metabolic dysfunctions. This study demonstrated the capacity of elderberry fruit (EDB) extract to decrease the elevated production of reactive oxygen species in hypertrophied 3T3-L1 adipocytes. Treatment with the EDB extract resulted in modulation of mRNA expression and protein secretion of key adipokines in hypertrophied adipocytes. Expression of leptin and adiponectin was, respectively, down- and up-regulated. Moreover, glucose uptake stimulation was noticed in mature adipocytes, both sensitive to insulin and insulin resistant. This may suggest a positive effect of EDB extract on insulin resistance status. The extract was also found to alleviate the inflammatory response in activated RAW 264.7 macrophages by down-regulating the expression of proinflammatory genes (TNF-α, IL-6, COX-2, iNOS) and suppressing the enhanced production of inflammatory mediators (TNF-α, IL-6, PGE2, NO). In vitro experiments showed that the EDB extract could inhibit digestive enzymes, including α-amylase, α-glucosidase, and pancreatic lipase, leading to reduced intestinal absorption of dietary lipids and carbohydrates. Further in vivo studies could be postulated to support EDB as a functional food component for the prevention and treatment of obesity and metabolic-immune comorbidities.
Collapse
Affiliation(s)
- Joanna Zielińska-Wasielica
- Department of Biotechnology and Food Microbiology, Poznan University of Life Sciences, Wojska Polskiego 48, 60-627 Poznan, Poland
| | - Anna Olejnik
- Department of Biotechnology and Food Microbiology, Poznan University of Life Sciences, Wojska Polskiego 48, 60-627 Poznan, Poland.
| | - Katarzyna Kowalska
- Department of Biotechnology and Food Microbiology, Poznan University of Life Sciences, Wojska Polskiego 48, 60-627 Poznan, Poland
| | - Mariola Olkowicz
- Department of Chemistry, University of Waterloo, 200 University Avenue West, Waterloo, ON N2L 3G1, Canada
| | - Radosław Dembczyński
- Department of Biotechnology and Food Microbiology, Poznan University of Life Sciences, Wojska Polskiego 48, 60-627 Poznan, Poland
| |
Collapse
|
23
|
Serrano A, Ros G, Nieto G. Regulation of Inflammatory Response and the Production of Reactive Oxygen Species by a Functional Cooked Ham Reformulated with Natural Antioxidants in a Macrophage Immunity Model. Antioxidants (Basel) 2019; 8:antiox8080286. [PMID: 31390804 PMCID: PMC6720695 DOI: 10.3390/antiox8080286] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2019] [Revised: 07/30/2019] [Accepted: 08/02/2019] [Indexed: 12/13/2022] Open
Abstract
Nowadays, more consumers demand healthier products. A way to offer such products is to functionalize them using health-promoting bioactive compounds. Meat and meat products are high in essential nutrients; however, their excessive consumption implies a high intake of other substances that, at levels above recommended uptake limits, have been linked to certain non-communicable chronic diseases. An effective way to reduce this danger is to reformulate meat products. In this study, natural botanical extracts rich in anti-inflammatory and antioxidant compounds were used to improve the health properties of a cooked ham with an optimal nutritional profile (i.e., low in fat and salt). The RAW 264.7 mouse cell line was used as an inflammatory model and was stimulated with Escherichia coli lipopolysaccharide to evaluate changes in inflammatory biomarkers such as tumour necrosis factor alpha, the interleukins (ILs) IL-1β and IL-6, nitric oxide and intracellular reactive oxygen species (ROS). The results showed that the use of natural extracts in optimized cooked ham significantly downregulated inflammatory markers and reduced the levels of intracellular ROS. Thus, the present study proposed a new functional cooked ham with potential health properties via anti-inflammatory and antioxidant in vitro activity.
Collapse
Affiliation(s)
- Antonio Serrano
- Department of Food Technology, Nutrition and Food Science, Veterinary Faculty, University of Murcia, Espinardo Campus, Espinardo, 30100 Murcia, Spain
| | - Gaspar Ros
- Department of Food Technology, Nutrition and Food Science, Veterinary Faculty, University of Murcia, Espinardo Campus, Espinardo, 30100 Murcia, Spain
| | - Gema Nieto
- Department of Food Technology, Nutrition and Food Science, Veterinary Faculty, University of Murcia, Espinardo Campus, Espinardo, 30100 Murcia, Spain.
| |
Collapse
|
24
|
Luo M, Tian R, Yang Z, Peng YY, Lu N. Quercetin suppressed NADPH oxidase-derived oxidative stress via heme oxygenase-1 induction in macrophages. Arch Biochem Biophys 2019; 671:69-76. [DOI: 10.1016/j.abb.2019.06.007] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2019] [Revised: 06/16/2019] [Accepted: 06/22/2019] [Indexed: 11/25/2022]
|
25
|
Nardochinoid B Inhibited the Activation of RAW264.7 Macrophages Stimulated by Lipopolysaccharide through Activating the Nrf2/HO-1 Pathway. Molecules 2019; 24:molecules24132482. [PMID: 31284554 PMCID: PMC6650925 DOI: 10.3390/molecules24132482] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2019] [Revised: 06/15/2019] [Accepted: 07/05/2019] [Indexed: 12/17/2022] Open
Abstract
Nardochinoid B (NAB) is a new compound isolated from Nardostachys chinensis. Although our previous study reported that the NAB suppressed the production of nitric oxide (NO) in lipopolysaccharide (LPS)-activated RAW264.7 cells, the specific mechanisms of anti-inflammatory action of NAB remains unknown. Thus, we examined the effects of NAB against LPS-induced inflammation. In this study, we found that NAB suppressed the LPS-induced inflammatory responses by restraining the expression of inducible nitric oxide synthase (iNOS) proteins and mRNA instead of cyclooxygenase-2 (COX-2) protein and mRNA in RAW264.7 cells, implying that NAB may have lower side effects compared with nonsteroidal anti-inflammatory drugs (NSAIDs). Besides, NAB upregulated the protein and mRNA expressions of heme oxygenase (HO)-1 when it exerted its anti-inflammatory effects. Also, NAB restrained the production of NO by increasing HO-1 expression in LPS-stimulated RAW264.7 cells. Thus, it is considered that the anti-inflammatory effect of NAB is associated with an induction of antioxidant protein HO-1, and thus NAB may be a potential HO-1 inducer for treating inflammatory diseases. Moreover, our study found that the inhibitory effect of NAB on NO is similar to that of the positive drug dexamethasone, suggesting that NAB has great potential for developing new drugs in treating inflammatory diseases.
Collapse
|
26
|
Wu MS, Chien CC, Chang J, Chen YC. Pro-apoptotic effect of haem oxygenase-1 in human colorectal carcinoma cells via endoplasmic reticular stress. J Cell Mol Med 2019; 23:5692-5704. [PMID: 31199053 PMCID: PMC6653387 DOI: 10.1111/jcmm.14482] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2019] [Revised: 05/15/2019] [Accepted: 05/22/2019] [Indexed: 01/01/2023] Open
Abstract
Several biological effects of haem oxygenase (HO)‐1, including anti‐inflammatory, antiapoptotic and antioxidative properties were reported; however, the role of HO‐1 in apoptosis is still unclear. In the presence of stimulation by cobalt protoporphyrin (CoPP), an HO‐1 inducer, apoptotic characteristics were observed, including DNA laddering, hypodiploid cells, and cleavages of caspase (Casp)‐3 and poly(ADP) ribose polymerase (PARP) proteins in human colon carcinoma COLO205, HCT‐15, LOVO and HT‐29 cells in serum‐free (SF) conditions with increased HO‐1, but not heat shock protein 70 (HSP70) or HSP90. The addition of 10% foetal bovine serum (FBS) or 1% bovine serum albumin accordingly inhibited CoPP‐induced apoptosis and HO‐1 protein expression in human colon cancer cells. CoPP‐induced apoptosis of colon cancer cells was prevented by the addition of the pan‐caspase inhibitor, Z‐VAD‐FMK (VAD), and the Casp‐3 inhibitor, Z‐DEVD‐FMK (DEVD). N‐Acetyl cysteine inhibited reactive oxygen species‐generated H2O2‐induced cell death with reduced intracellular peroxide production, but did not affect CoPP‐induced apoptosis in human colorectal carcinoma (CRC) cells. Two CoPP analogs, ferric protoporphyrin and tin protoporphyrin, did not affect the viability of human CRC cells or HO‐1 expression by those cells, and knockdown of HO‐1 protein expression by HO‐1 small interfering (si)RNA reversed the cytotoxic effect elicited by CoPP. Furthermore, the carbon monoxide (CO) donor, CORM, but not FeSO4 or biliverdin, induced DNA ladders, and cleavage of Casp‐3 and PARP proteins in human CRC cells. Increased phosphorylated levels of the endoplasmic reticular (ER) stress proteins, protein kinase R‐like ER kinase (PERK), and eukaryotic initiation factor 2α (eIF2α) by CORM and CoPP were identified, and the addition of the PERK inhibitor, GSK2606414, inhibited CORM‐ and CoPP‐induced apoptosis. Increased GRP78 level and formation of the HO‐1/GRP78 complex were detected in CORM‐ and CoPP‐treated human CRC cells. A pro‐apoptotic role of HO‐1 against the viability of human CRC cells via induction of CO and ER stress was firstly demonstrated herein.
Collapse
Affiliation(s)
- Ming-Shun Wu
- Division of Gastroenterology, Department of Internal Medicine, Wan Fang Hospital, Taipei Medical University, Taipei, Taiwan.,Division of Gastroenterology and Hepatology, Department of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Chih-Chiang Chien
- Department of Nephrology, Chi-Mei Medical Center, Tainan, Taiwan.,Department of Food Nutrition, Chung Hwa University of Medical Technology, Tainan, Taiwan
| | - Jungshan Chang
- Graduate Institute of Medical Sciences, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Yen-Chou Chen
- Graduate Institute of Medical Sciences, College of Medicine, Taipei Medical University, Taipei, Taiwan.,Cancer Research Center and Orthopedics Research Center, Taipei Medical University Hospital, Taipei, Taiwan.,Cell Physiology and Molecular Image Research Center, Wan Fang Hospital, Taipei Medical University, Taipei, Taiwan
| |
Collapse
|
27
|
Asgharpour F, Moghadamnia AA, Motallebnejad M, Nouri HR. Propolis attenuates lipopolysaccharide-induced inflammatory responses through intracellular ROS and NO levels along with downregulation of IL-1β and IL-6 expressions in murine RAW 264.7 macrophages. J Food Biochem 2019; 43:e12926. [PMID: 31368546 DOI: 10.1111/jfbc.12926] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2019] [Revised: 04/28/2019] [Accepted: 05/04/2019] [Indexed: 12/22/2022]
Abstract
Propolis had a wide spectrum of biological activities. In the current study, antioxidative and the immunomodulatory effects of the Polur ethanol extract of propolis (PEEP) in murine macrophage (RAW 264.7) cells were investigated. Bioactive composition of the PEEP was determined by HPLC analysis. Cells were treated with different concentrations of PEEP and LPS, then cell viability, NO levels, and expression of inflammatory factors were evaluated. HPLC analysis of PEEP indicated the presence of flavonoids and phenolic acid. The PEEP inhibited the proliferation of RAW 264.7 cells with IC50 15 ± 3.2 µg/ml. Reactive oxygen species (ROS) and NO production was significantly reduced by 0.15 µg/ml of PEEP. Additionally, expression of Cox-2, IL-1β and IL-6 significantly decreased. The obtained results supported the PEEP anti-inflammatory effects on RAW 264.7 cells may be applied via reducing ROS and NO production along with COX-2, IL-1β, and IL-6 expression. PRACTICAL APPLICATIONS: Propolis is a resinous substance produced by the honeybee that has been adopted as a form of traditional medicine since ancient times. The main compounds found in propolis are typically various and depend on the type of plants and climatic region. In this respect, a wide spectrum of biological activities for propolis has been identified including antioxidant, antimicrobial, anticarcinogenic, anti-inflammatory, as well as antifungal properties. This extraordinary substance is rich in flavonoids and antioxidants. Therefore, it is now widely used in foods and drinks with the claim that it can maintain or improve human health.
Collapse
Affiliation(s)
- Fariba Asgharpour
- Student Research Committee, Babol University of Medical sciences, Babol, Iran.,Dental Materials Research Center, Health Research Institute, Babol University of Medical Sciences, Babol, Iran
| | - Ali Akbar Moghadamnia
- Neuroscience Research Center, Health Research Institute, Babol University of Medical Sciences, Babol, Iran.,Cellular and Molecular Biology Research Center, Health Research Institute, Babol University of Medical Sciences, Babol, Iran
| | - Mina Motallebnejad
- Oral Health Center, Health Research Institute, Babol University of Medical Sciences, Babol, Iran
| | - Hamid Reza Nouri
- Cellular and Molecular Biology Research Center, Health Research Institute, Babol University of Medical Sciences, Babol, Iran
| |
Collapse
|
28
|
Mushtaque M, Avecilla F, Hafeez ZB, Rizvi MMA. Synthesis, Characterization, Molecular Docking, and Anticancer Evaluation of 4‐Thiazolidinone Analogues. J Heterocycl Chem 2019. [DOI: 10.1002/jhet.3549] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Md Mushtaque
- Department of ChemistrySchool of Physical and Molecular Sciences, Al‐Falah University Faridabad Haryana 121004 India
| | - Fernando Avecilla
- GrupoXenomar, Centro de Investigacións Científicas Avanzadas (CICA), Departamento de Química, Facultade de CienciasUniversidade da Coruña, Campus de A Coruña Coruña 15071 A Spain
| | - Zubair Bin Hafeez
- Department of BiosciencesJamia Millia Islamia New Delhi 110025 India
| | | |
Collapse
|
29
|
Synthesis, toxicities and bio-activities of manganese complexes with CO and H2S dual donors. Eur J Med Chem 2018; 159:339-356. [DOI: 10.1016/j.ejmech.2018.10.004] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2018] [Revised: 09/29/2018] [Accepted: 10/01/2018] [Indexed: 01/09/2023]
|
30
|
Luo JF, Shen XY, Lio CK, Dai Y, Cheng CS, Liu JX, Yao YD, Yu Y, Xie Y, Luo P, Yao XS, Liu ZQ, Zhou H. Activation of Nrf2/HO-1 Pathway by Nardochinoid C Inhibits Inflammation and Oxidative Stress in Lipopolysaccharide-Stimulated Macrophages. Front Pharmacol 2018; 9:911. [PMID: 30233360 PMCID: PMC6131578 DOI: 10.3389/fphar.2018.00911] [Citation(s) in RCA: 117] [Impact Index Per Article: 19.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2018] [Accepted: 07/25/2018] [Indexed: 12/12/2022] Open
Abstract
The roots and rhizomes of Nardostachys chinensis have neuroprotection and cardiovascular protection effects. However, the specific mechanism of N. chinensis is not yet clear. Nardochinoid C (DC) is a new compound with new skeleton isolated from N. chinensis and this study for the first time explored the anti-inflammatory and anti-oxidant effect of DC. The results showed that DC significantly reduced the release of nitric oxide (NO) and prostaglandin E2 (PGE2) in lipopolysaccharide (LPS)-activated RAW264.7 cells. The expression of pro-inflammatory proteins including inducible nitric oxide synthase (iNOS) and cyclooxygenase-2 (COX-2) were also obviously inhibited by DC in LPS-activated RAW264.7 cells. Besides, the production of interleukin-6 (IL-6) and tumor necrosis factor-α (TNF-α) were also remarkably inhibited by DC in LPS-activated RAW264.7 cells. DC also suppressed inflammation indicators including COX-2, PGE2, TNF-α, and IL-6 in LPS-stimulated THP-1 macrophages. Furthermore, DC inhibited the macrophage M1 phenotype and the production of reactive oxygen species (ROS) in LPS-activated RAW264.7 cells. Mechanism studies showed that DC mainly activated nuclear factor erythroid 2-related factor 2 (Nrf2) signaling pathway, increased the level of anti-oxidant protein heme oxygenase-1 (HO-1) and thus produced the anti-inflammatory and anti-oxidant effects, which were abolished by Nrf2 siRNA and HO-1 inhibitor. These findings suggested that DC could be a new Nrf2 activator for the treatment and prevention of diseases related to inflammation and oxidative stress.
Collapse
Affiliation(s)
- Jin-Fang Luo
- Faculty of Chinese Medicine, Macau University of Science and Technology, Macau, China.,State Key Laboratory of Quality Research in Chinese Medicines, Macau University of Science and Technology, Macau, China
| | - Xiu-Yu Shen
- Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy, Jinan University, Guangzhou, China
| | - Chon Kit Lio
- Faculty of Chinese Medicine, Macau University of Science and Technology, Macau, China.,State Key Laboratory of Quality Research in Chinese Medicines, Macau University of Science and Technology, Macau, China
| | - Yi Dai
- Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy, Jinan University, Guangzhou, China
| | - Chun-Song Cheng
- Faculty of Chinese Medicine, Macau University of Science and Technology, Macau, China.,State Key Laboratory of Quality Research in Chinese Medicines, Macau University of Science and Technology, Macau, China
| | - Jian-Xin Liu
- College of Pharmacy, Hunan University of Chinese Medicine, Changsha, China
| | - Yun-Da Yao
- Faculty of Chinese Medicine, Macau University of Science and Technology, Macau, China.,State Key Laboratory of Quality Research in Chinese Medicines, Macau University of Science and Technology, Macau, China
| | - Yang Yu
- Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy, Jinan University, Guangzhou, China
| | - Ying Xie
- Faculty of Chinese Medicine, Macau University of Science and Technology, Macau, China.,State Key Laboratory of Quality Research in Chinese Medicines, Macau University of Science and Technology, Macau, China
| | - Pei Luo
- Faculty of Chinese Medicine, Macau University of Science and Technology, Macau, China.,State Key Laboratory of Quality Research in Chinese Medicines, Macau University of Science and Technology, Macau, China
| | - Xin-Sheng Yao
- Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy, Jinan University, Guangzhou, China
| | - Zhong-Qiu Liu
- Joint Laboratory for Translational Cancer Research of Chinese Medicine of the Ministry of Education of the People's Republic of China, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Hua Zhou
- Faculty of Chinese Medicine, Macau University of Science and Technology, Macau, China.,State Key Laboratory of Quality Research in Chinese Medicines, Macau University of Science and Technology, Macau, China.,Joint Laboratory for Translational Cancer Research of Chinese Medicine of the Ministry of Education of the People's Republic of China, Guangzhou University of Chinese Medicine, Guangzhou, China
| |
Collapse
|
31
|
Ma Y, He Y, Yin T, Chen H, Gao S, Hu M. Metabolism of Phenolic Compounds in LPS-stimulated Raw264.7 Cells Can Impact Their Anti-inflammatory efficacy: Indication of Hesperetin. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2018; 66:6042-6052. [PMID: 29792322 DOI: 10.1021/acs.jafc.7b04464] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Raw264.7 is a murine macrophage-like cell line commonly used to study the anti-inflammatory efficacy of natural compounds. However, the impacts of long-time incubation on the tested compounds are often inappropriately ignored. Among 77 natural phenolic compounds (mainly flavonoids), only 36 remain more than 70% after a 15-h incubation in cell culture medium at 37 °C. Interestingly, for those compounds with a relatively good chemical stability, the presence of Raw264.7 cells could accelerate their disappearance in the medium, indicating that cellular metabolism occurred. As a representative phenolic, hesperetin was found to be efficiently metabolized by Raw264.7 cells and the metabolite was identified as a glucuronide in the further investigation. The glucuronidation activity is constitutive in this cell line. At certain concentration levels of hesperetin, the ability of hesperetin to inhibit PGD2 production in LPS-induced Raw264.7 cells was significantly enhanced by introducing β-glucuronidase, which can hydrolyze hesperetin glucuronide, into the incubation medium. The results indicate that glucuronidation and excretion of hesperetin can significantly impact its bioactivity in Raw264.7 cells.
Collapse
Affiliation(s)
- Yong Ma
- Department of Pharmacological and Pharmaceutical Sciences, College of Pharmacy , University of Houston , 1441 Moursund Street , Houston , Texas 77030 , United States
| | - Yu He
- Department of Pharmacological and Pharmaceutical Sciences, College of Pharmacy , University of Houston , 1441 Moursund Street , Houston , Texas 77030 , United States
| | - Taijun Yin
- Department of Pharmacological and Pharmaceutical Sciences, College of Pharmacy , University of Houston , 1441 Moursund Street , Houston , Texas 77030 , United States
| | - Haoqing Chen
- Department of Chemistry, College of Natural Sciences and Mathematics , University of Houston , 4800 Calhoun Road , Houston , Texas 77004 , United States
| | - Song Gao
- Department of Pharmacological and Pharmaceutical Sciences, College of Pharmacy , University of Houston , 1441 Moursund Street , Houston , Texas 77030 , United States
| | - Ming Hu
- Department of Pharmacological and Pharmaceutical Sciences, College of Pharmacy , University of Houston , 1441 Moursund Street , Houston , Texas 77030 , United States
| |
Collapse
|
32
|
Saiki P, Kawano Y, Van Griensven LJLD, Miyazaki K. The anti-inflammatory effect of Agaricus brasiliensis is partly due to its linoleic acid content. Food Funct 2018; 8:4150-4158. [PMID: 29022634 DOI: 10.1039/c7fo01172e] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
For hundreds of years mushrooms have been used as functional food for health. The basidiomycete Agaricus brasiliensis (A. brasiliensis) is famous for the medicinal properties of its beta glucans and of its antioxidants. Most researchers have studied polysaccharides from A. brasiliensis for their anti-inflammatory activity. However, active compounds from this mushroom have not yet been studied for the inactivation of NO inhibitory activity. The present study aimed to find the active compounds from A. brasiliensis for their NO inhibitory activity related inflammatory activity. This study found that linoleic acid isolated from A. brasiliensis inhibited NO production and suppressed the expression of pro-inflammatory cytokines including TNF-α, IL-6, IL-1β, and NOS2 in RAW 264.7 cells. Linoleic acid also suppressed the expression of NF-κB subunit p50 and restored PPARα. This leads to the conclusion that linoleic acid from A. brasiliensis could reduce NO production and inflammatory activity in RAW 264.7 cells by the inhibition of p50 and via the activation of PPARα. This study suggests that linoleic acid present in A. brasiliensis could play a role in the prevention of inflammatory diseases for which this edible mushroom is already known.
Collapse
Affiliation(s)
- Papawee Saiki
- Biomedical Research Institute, National institute of Advance Industrial Science and Technology, Tsukuba, Ibaraki, Japan.
| | | | | | | |
Collapse
|
33
|
Pan XX, Tao JH, Jiang S, Zhu Y, Qian DW, Duan JA. Characterization and immunomodulatory activity of polysaccharides from the stems and leaves of Abelmoschus manihot and a sulfated derivative. Int J Biol Macromol 2018; 107:9-16. [DOI: 10.1016/j.ijbiomac.2017.08.130] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2017] [Revised: 08/09/2017] [Accepted: 08/22/2017] [Indexed: 01/04/2023]
|
34
|
Mitochondrial biogenesis and metabolic hyperactivation limits the application of MTT assay in the estimation of radiation induced growth inhibition. Sci Rep 2018; 8:1531. [PMID: 29367754 PMCID: PMC5784148 DOI: 10.1038/s41598-018-19930-w] [Citation(s) in RCA: 172] [Impact Index Per Article: 28.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2017] [Accepted: 01/05/2018] [Indexed: 01/19/2023] Open
Abstract
Metabolic viability based high throughput assays like MTT and MTS are widely used in assessing the cell viability. However, alteration in both mitochondrial content and metabolism can influence the metabolic viability of cells and radiation is a potential mitochondrial biogenesis inducer. Therefore, we tested if MTT assay is a true measure of radiation induced cell death in widely used cell lines. Radiation induced cellular growth inhibition was performed by enumerating cell numbers and metabolic viability using MTT assay at 24 and 48 hours (hrs) after exposure. The extent of radiation induced reduction in cell number was found to be larger than the decrease in MTT reduction in all the cell lines tested. We demonstrated that radiation induces PGC-1α and TFAM to stimulate mitochondrial biogenesis leading to increased levels of SDH-A and enhanced metabolic viability. Radiation induced disturbance in calcium (Ca2+) homeostasis also plays a crucial role by making the mitochondria hyperactive. These findings suggest that radiation induces mitochondrial biogenesis and hyperactivation leading to increased metabolic viability and MTT reduction. Therefore, conclusions drawn on radiation induced growth inhibition based on metabolic viability assays are likely to be erroneous as it may not correlate with growth inhibition and/or loss of clonogenic survival.
Collapse
|
35
|
Wu MS, Chien CC, Cheng KT, Subbaraju GV, Chen YC. Hispolon Suppresses LPS- or LTA-Induced iNOS/NO Production and Apoptosis in BV-2 Microglial Cells. THE AMERICAN JOURNAL OF CHINESE MEDICINE 2017; 45:1649-1666. [PMID: 29121802 DOI: 10.1142/s0192415x17500896] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Hispolon (HIS) is an active polyphenol compound derived from Phellinus linteus (Berkeley & Curtis), and our previous study showed that HIS effectively inhibited inflammatory responses in macrophages [Yang, L.Y., S.C. Shen, K.T. Cheng, G.V. Subbaraju, C.C. Chien and Y.C. Chen. Hispolon inhibition of inflammatory apoptosis through reduction of iNOS/NO production via HO-1 induction in macrophages. J. Ethnopharmacol. 156: 61-72, 2014]; however, its effect on neuronal inflammation is still undefined. In this study, HIS concentration- and time-dependently inhibited lipopolysaccharide (LPS)- and lipoteichoic acid (LTA)-induced inducible nitric oxide (NO) synthase (iNOS)/NO production with increased heme oxygenase (HO)-1 proteins in BV-2 microglial cells. Accordingly, HIS protected BV-2 cells from LPS- or LTA-induced apoptosis, characterized by decreased DNA ladder formation, and caspase-3 and poly(ADP ribose) polymerase (PARP) protein cleavage in BV-2 cells. Similarly, the NOS inhibitor, N-nitro-L-arginine methyl ester (NAME), inhibited LPS- or LTA-induced apoptosis of BV-2 cells, but neither NAME nor HIS showed any inhibition of NO production or cell death induced by the NO donor, sodium nitroprusside (SNP), indicating the involvement of NO in the inflammatory apoptosis of microglial cells. Activation of c-Jun N-terminal kinase (JNK) and nuclear factor (NF)-[Formula: see text]B contributed to LPS- or LTA-induced iNOS/NO production and apoptosis of BV-2 cells, and that was suppressed by HIS. Additionally, HIS possesses activity to induce HO-1 protein expression via activation of extracellular signal-regulated kinase (ERK) in BV-2 cells, and application of the HO inhibitor, tin protoporphyrin (SnPP), or knockdown of HO-1 protein by HO-1 small interfering (si)RNA significantly reversed HIS inhibition of NO production and cell death in BV-2 cells stimulated by LPS. Results of an analysis of the effects of HIS and two structurally related chemicals, i.e. dehydroxy-HIS (D-HIS) and HIS-methyl ester (HIS-ME), showed that HIS expressed the most potent inhibitory effects on iNOS/NO production, JNK activation, and apoptosis in BV-2 microglial cells activated by LPS with increased HO-1 protein expression. Overall these results suggested that HIS possesses inhibitory activity against LPS- or LTA-induced inflammatory responses including iNOS/NO production and apoptosis in BV-2 microglial cells and that the mechanisms involve upregulation of the HO-1 protein and downregulation of JNK/NF-[Formula: see text]B activation. A critical role of hydroxyl at position C3 in the anti-inflammatory actions of HIS against activated BV-2 microglial cells was suggested.
Collapse
Affiliation(s)
- Ming-Shun Wu
- * Division of Gastroenterology, Department of Internal Medicine, Wan Fang Hospital, Taipei Medical University, Taipei, Taiwan.,† Division of Gastroenterology and Hepatology, Department of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Chih-Chiang Chien
- ¶ Department of Nephrology, Chi-Mei Medical Center, Tainan, Taiwan.,∥ Department of Food Nutrition, Chung Hwa University of Medical Technology, Tainan, Taiwan
| | - Kur-Ta Cheng
- ‡ Department of Biochemistry and Molecular Cell Biology, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | | | - Yen-Chou Chen
- § Graduate Institute of Medical Sciences, College of Medicine, Taipei Medical University, Taipei, Taiwan.,†† Cancer Research Center and Orthopedics Research Center, Taipei Medical University Hospital, Taipei, Taiwan
| |
Collapse
|
36
|
Mushtaque M, Avecilla F, Pingale SS, Kamble KM, Yab Z, Rizvi MMA. Computational and experimental studies of 4-thiazolidinone-cyclopropyl hybrid. J Mol Liq 2017. [DOI: 10.1016/j.molliq.2017.06.041] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
37
|
Integrated analysis of miRNA and mRNA expression profiles in human endothelial cells exposed to fisetin. BIOCHIP JOURNAL 2017. [DOI: 10.1007/s13206-017-1308-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
|
38
|
Mushtaque M, Avecilla F, Khan MS, Hafeez ZB, Rezvi MMA, Srivastava A. Synthesis, characterization, cytotoxicity, cell cycle analysis of 3-(4-methoxyphenyl)-1-(pyridin-2-ylmethyl)thiourea and quantum chemical analyses. J Mol Struct 2017. [DOI: 10.1016/j.molstruc.2017.03.066] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
|
39
|
Park J, Kim H, Lee IS, Kim KH, Kim Y, Na YC, Lee JH, Jang HJ. The therapeutic effects of Yongdamsagan-tang on autoimmune hepatitis models. Biomed Pharmacother 2017; 94:244-255. [PMID: 28763748 DOI: 10.1016/j.biopha.2017.07.015] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2017] [Revised: 07/05/2017] [Accepted: 07/05/2017] [Indexed: 12/12/2022] Open
Abstract
Autoimmune hepatitis (AIH) is an immunity disorder that is the result of antibodies in the liver tissue of the patient that are attacked by activated immune cells due to an unknown cause. In this study, we aimed to investigate the anti-inflammatory effect of Yongdamsagan-tang (YST) extracts and confirm effects on autoimmune hepatitis models as the therapeutic agent using the YST extracted by various solvents. YST, a mixture of 11 herbal extracts, is known in traditional Korean medicine as a widely used treatment for inflammatory diseases. We proposed the AIH-condition in vitro model by the addition of recombinant IL-17A and then observed several markers linked to AIH symptoms, including an increase of IL-6 expression, lipid accumulation, and fibrosis. In AIH-condition hepatic cell model, YST reduced IL-6 expression and lipid accumulation caused by treatment of IL-17 combination in hepatocyte cells. Also, YST blocked several activated fibrosis factors including transforming growth factor-β (TGF- β1), collagen type 1 (Col-α1(I)), and α-smooth muscle actin (α-SMA) in liver stellate cells. Furthermore, pretreatment with YST protected hepatic damage and reduces histological injury by suppressing apoptosis mediator and inflammatory cytokines expression in concanavalin A (Con A)-induced autoimmune hepatitis mice model. The findings here improve our understanding of YST extracted by 80% ethanol, suggesting that YST can be used as a therapeutic treatment for AIH.
Collapse
Affiliation(s)
- Jiyoung Park
- Department of Science in Korean Medicine, Graduate School, Kyung Hee University, Seoul, Republic of Korea; College of Korean Medicine, Institute of Korean Medicine, Kyung Hee University, 26, Kyung Hee Dae-ro, Dongdaemun-gu, Seoul 02447, Republic of Korea
| | - Hayeon Kim
- College of Korean Medicine, Institute of Korean Medicine, Kyung Hee University, 26, Kyung Hee Dae-ro, Dongdaemun-gu, Seoul 02447, Republic of Korea; Department of Clinical Korean Medicine, Graduate School, Kyung Hee University, Seoul, Republic of Korea
| | - In-Seung Lee
- Department of Science in Korean Medicine, Graduate School, Kyung Hee University, Seoul, Republic of Korea; College of Korean Medicine, Institute of Korean Medicine, Kyung Hee University, 26, Kyung Hee Dae-ro, Dongdaemun-gu, Seoul 02447, Republic of Korea
| | - Kang-Hoon Kim
- Department of Science in Korean Medicine, Graduate School, Kyung Hee University, Seoul, Republic of Korea; College of Korean Medicine, Institute of Korean Medicine, Kyung Hee University, 26, Kyung Hee Dae-ro, Dongdaemun-gu, Seoul 02447, Republic of Korea
| | - Yumi Kim
- Department of Science in Korean Medicine, Graduate School, Kyung Hee University, Seoul, Republic of Korea; College of Korean Medicine, Institute of Korean Medicine, Kyung Hee University, 26, Kyung Hee Dae-ro, Dongdaemun-gu, Seoul 02447, Republic of Korea
| | - Yun-Cheol Na
- Department of Chemistry and Nano Science, Ewha Womans University, 52 Ewhayeodae-gil, Seodaemun-gu, Seoul 03760, Republic of Korea
| | - Jang-Hoon Lee
- College of Korean Medicine, Institute of Korean Medicine, Kyung Hee University, 26, Kyung Hee Dae-ro, Dongdaemun-gu, Seoul 02447, Republic of Korea; Department of Clinical Korean Medicine, Graduate School, Kyung Hee University, Seoul, Republic of Korea.
| | - Hyeung-Jin Jang
- Department of Science in Korean Medicine, Graduate School, Kyung Hee University, Seoul, Republic of Korea; College of Korean Medicine, Institute of Korean Medicine, Kyung Hee University, 26, Kyung Hee Dae-ro, Dongdaemun-gu, Seoul 02447, Republic of Korea.
| |
Collapse
|
40
|
Arshad M, Bhat AR, Hoi KK, Choi I, Athar F. Synthesis, characterization and antibacterial screening of some novel 1,2,4-triazine derivatives. CHINESE CHEM LETT 2017. [DOI: 10.1016/j.cclet.2016.12.037] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
41
|
Ho GTT, Wangensteen H, Barsett H. Elderberry and Elderflower Extracts, Phenolic Compounds, and Metabolites and Their Effect on Complement, RAW 264.7 Macrophages and Dendritic Cells. Int J Mol Sci 2017; 18:ijms18030584. [PMID: 28282861 PMCID: PMC5372600 DOI: 10.3390/ijms18030584] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2017] [Revised: 02/27/2017] [Accepted: 03/04/2017] [Indexed: 12/11/2022] Open
Abstract
Modulation of complement activity and inhibition of nitric oxide (NO) production by macrophages and dendritic cells may have therapeutic value in inflammatory diseases. Elderberry and elderflower extracts, constituents, and metabolites were investigated for their effects on the complement system, and on NO production in lipopolysaccharide (LPS)-activated RAW 264.7 macrophages and murine dendritic D2SC/I cells. The EtOH crude extracts from elderberry and elderflower and the isolated anthocyanins and procyanidins possessed strong complement fixating activity and strong inhibitory activity on NO production in RAW cells and dendritic cells. Phenolic compounds in the range of 0.1–100 µM showed a dose-dependent inhibition of NO production, with quercetin, rutin, and kaempferol as the most potent ones. Among the metabolites, caffeic acid and 3,4-dihydroxyphenylacetic acid showed the strongest inhibitory effects on NO production in both cell lines, without having cytotoxic effect. Only 4-methylcatechol was cytotoxic at the highest tested concentration (100 µM). Elderberry and elderflower constituents may possess inflammatory modulating activity, which increases their nutritional value.
Collapse
Affiliation(s)
- Giang Thanh Thi Ho
- School of Pharmacy, Department of Pharmaceutical Chemistry, University of Oslo, P.O. Box 1068, Blindern, N-0316 Oslo, Norway.
| | - Helle Wangensteen
- School of Pharmacy, Department of Pharmaceutical Chemistry, University of Oslo, P.O. Box 1068, Blindern, N-0316 Oslo, Norway.
| | - Hilde Barsett
- School of Pharmacy, Department of Pharmaceutical Chemistry, University of Oslo, P.O. Box 1068, Blindern, N-0316 Oslo, Norway.
| |
Collapse
|
42
|
Lee SE, Park HR, Yun HD, Cho JJ, Ahn HJ, Park CS, Park YS. Integrated miRNA and mRNA expression profiling in response to eriodictyol in human endothelial cells. BIOCHIP JOURNAL 2017. [DOI: 10.1007/s13206-017-1303-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
|
43
|
Sun H, Ni X, Zeng D, Zou F, Yang M, Peng Z, Zhou Y, Zeng Y, Zhu H, Wang H, Yin Z, Pan K, Jing B. Bidirectional immunomodulating activity of fermented polysaccharides from Yupingfeng. Res Vet Sci 2017; 110:22-28. [DOI: 10.1016/j.rvsc.2016.10.015] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2016] [Revised: 10/22/2016] [Accepted: 10/26/2016] [Indexed: 10/20/2022]
|
44
|
Trotter LA, Patel D, Dubin S, Guerra C, McCloud V, Lockwood P, Messer R, Wataha JC, Lewis JB. Violet/blue light activates Nrf2 signaling and modulates the inflammatory response of THP-1 monocytes. Photochem Photobiol Sci 2017; 16:883-889. [DOI: 10.1039/c6pp00299d] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Several studies suggest that light in the UVA range (320–400 nm) activates signaling pathways that are anti-inflammatory and antioxidative.
Collapse
Affiliation(s)
| | - D. Patel
- Augusta University
- Dept. of Oral Biology
- Augusta
- USA
- University of Kentucky
| | - S. Dubin
- Western University of Health Sciences
- College of Dental Medicine
- Pomona
- USA
| | - C. Guerra
- Western University of Health Sciences
- College of Dental Medicine
- Pomona
- USA
| | - V. McCloud
- Augusta University
- Dept. of Oral Biology
- Augusta
- USA
| | - P. Lockwood
- Augusta University
- Dept. of Oral Biology
- Augusta
- USA
| | - R. Messer
- Augusta University
- Dept. of Oral Biology
- Augusta
- USA
| | - J. C. Wataha
- Augusta University
- Dept. of Oral Biology
- Augusta
- USA
- University of Washington
| | - J. B. Lewis
- Augusta University
- Dept. of Oral Biology
- Augusta
- USA
- Western University of Health Sciences
| |
Collapse
|
45
|
Synthesis, stereochemistry determination, pharmacological studies and quantum chemical analyses of bisthiazolidinone derivative. J Mol Struct 2017. [DOI: 10.1016/j.molstruc.2016.07.089] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
|
46
|
Kim KM, Heo DR, Kim YA, Lee J, Kim NS, Bang OS. Coniferaldehyde inhibits LPS-induced apoptosis through the PKC α/β II/Nrf-2/HO-1 dependent pathway in RAW264.7 macrophage cells. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2016; 48:85-93. [PMID: 27770660 DOI: 10.1016/j.etap.2016.10.016] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2016] [Revised: 10/13/2016] [Accepted: 10/17/2016] [Indexed: 06/06/2023]
Abstract
Coniferaldehyde (CA) exerts anti-inflammatory properties by inducing heme oxygenase-1 (HO-1). To define the regulation mechanism by which CA induces a cytoprotective function and HO-1 expression, the up-stream regulations involved in the activation of nuclear transcription factor-erythroid 2-related factor (Nrf)-2/HO-1 pathway were investigated. CA dramatically increased the Nrf-2 nuclear translocation and HO-1 expression. Lipopolysaccharide (LPS)-induced expression of inducible nitric oxide synthase (iNOS) and cyclooxygenase (COX)-2, and cell death were down-regulated by CA, which were reversed by inhibition of HO-1 activity. Furthermore, CA specifically enhanced the phosphorylation of protein kinase C (PKC) α/β II. Selective inhibition of PKC α/β II using Go6976 or siRNA abolished the CA-induced Nrf-2/HO-1 signaling, and consequently suppressed the cytoprotective activity of CA on the LPS-induced cell death. Together, our results elucidate the regulatory mechanism of PKC α/β II as the upstream molecule of Nrf-2 required for HO-1 expression during CA-induced anti-inflammatory cytoprotective function in LPS stimulated macrophages.
Collapse
Affiliation(s)
- Ki Mo Kim
- KM Convergence Research Division, Korea Institute of Oriental Medicine, 1672 Yuseong-daero, Yuseong-gu, Daejeon, 305-811, Republic of Korea
| | - Deok Rim Heo
- KM Convergence Research Division, Korea Institute of Oriental Medicine, 1672 Yuseong-daero, Yuseong-gu, Daejeon, 305-811, Republic of Korea
| | - Young-A Kim
- KM Convergence Research Division, Korea Institute of Oriental Medicine, 1672 Yuseong-daero, Yuseong-gu, Daejeon, 305-811, Republic of Korea
| | - Jun Lee
- KM Convergence Research Division, Korea Institute of Oriental Medicine, 1672 Yuseong-daero, Yuseong-gu, Daejeon, 305-811, Republic of Korea
| | - No Soo Kim
- KM Convergence Research Division, Korea Institute of Oriental Medicine, 1672 Yuseong-daero, Yuseong-gu, Daejeon, 305-811, Republic of Korea
| | - Ok-Sun Bang
- KM Convergence Research Division, Korea Institute of Oriental Medicine, 1672 Yuseong-daero, Yuseong-gu, Daejeon, 305-811, Republic of Korea.
| |
Collapse
|
47
|
Tazeem, Bhat AR, Han X, Athar F. Synthesis, Structure-Activity Relationship and Antimicrobial Evaluation of Methyl-Substituted Tetrazoloquinoline-Based Pyrazolinethioamides. ChemistrySelect 2016. [DOI: 10.1002/slct.201601002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Tazeem
- Centre for Interdisciplinary Research in Basic Sciences; Jamia Millia Islamia (Central, University); New Delhi 110025 India
- State Key Laboratory of Virology; Wuhan University School of Pharmaceutical Sciences; Wuhan China 430071
| | - Abdul Roouf Bhat
- Department of Chemistry; S. P. College; M.A Road Srinagar- 190001 India
| | - Xin Han
- State Key Laboratory of Virology; Wuhan University School of Pharmaceutical Sciences; Wuhan China 430071
| | - Fareeda Athar
- Centre for Interdisciplinary Research in Basic Sciences; Jamia Millia Islamia (Central, University); New Delhi 110025 India
| |
Collapse
|
48
|
Mushtaque M, Jahan M, Ali M, Khan MS, Khan MS, Preeti Sahay, Kesarwani A. Synthesis, characterization, molecular docking, DNA binding, cytotoxicity and DFT studies of 1-(4-methoxyphenyl)-3-(pyridine-3-ylmethyl)thiourea. J Mol Struct 2016. [DOI: 10.1016/j.molstruc.2016.05.087] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
49
|
Kim CS, Choi HS, Joe Y, Chung HT, Yu R. Induction of heme oxygenase-1 with dietary quercetin reduces obesity-induced hepatic inflammation through macrophage phenotype switching. Nutr Res Pract 2016; 10:623-628. [PMID: 27909560 PMCID: PMC5126412 DOI: 10.4162/nrp.2016.10.6.623] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2016] [Revised: 06/13/2016] [Accepted: 08/19/2016] [Indexed: 01/12/2023] Open
Abstract
BACKGROUND/OBJECTIVES Obesity-induced steatohepatitis accompanied by activated hepatic macrophages/Kupffer cells facilitates the progression of hepatic fibrinogenesis and exacerbates metabolic derangements such as insulin resistance. Heme oxyganase-1 (HO-1) modulates tissue macrophage phenotypes and thus is implicated in protection against inflammatory diseases. Here, we show that the flavonoid quercetin reduces obesity-induced hepatic inflammation by inducing HO-1, which promotes hepatic macrophage polarization in favor of the M2 phenotype. MATERIALS/METHODS Male C57BL/6 mice were fed a regular diet (RD), high-fat diet (HFD), or HFD supplemented with quercetin (HF+Que, 0.5g/kg diet) for nine weeks. Inflammatory cytokines and macrophage markers were measured by ELISA and RT-PCR, respectively. HO-1 protein was measured by Western blotting. RESULTS Quercetin supplementation decreased levels of inflammatory cytokines (TNFα, IL-6) and increased that of the anti-inflammatory cytokine (IL-10) in the livers of HFD-fed mice. This was accompanied by upregulation of M2 macrophage marker genes (Arg-1, Mrc1) and downregulation of M1 macrophage marker genes (TNFα, NOS2). In co-cultures of lipid-laden hepatocytes and macrophages, treatment with quercetin induced HO-1 in the macrophages, markedly suppressed expression of M1 macrophage marker genes, and reduced release of MCP-1. Moreover, these effects of quercetin were blunted by an HO-1 inhibitor and deficiency of nuclear factor E2-related factor 2 (Nrf2) in macrophages. CONCLUSIONS Quercetin reduces obesity-induced hepatic inflammation by promoting macrophage phenotype switching. The beneficial effect of quercetin is associated with Nrf2-mediated HO-1 induction. Quercetin may be a useful dietary factor for protecting against obesity-induced steatohepatitis.
Collapse
Affiliation(s)
- Chu-Sook Kim
- Department of Food Science and Nutrition, University of Ulsan, 93 Daehak-ro, Nam-ku, Ulsan 44610, Korea
| | - Hye-Seon Choi
- Department of Biological Science, University of Ulsan, Ulsan 44610, Korea
| | - Yeonsoo Joe
- Department of Biological Science, University of Ulsan, Ulsan 44610, Korea
| | - Hun Taeg Chung
- Department of Biological Science, University of Ulsan, Ulsan 44610, Korea
| | - Rina Yu
- Department of Food Science and Nutrition, University of Ulsan, 93 Daehak-ro, Nam-ku, Ulsan 44610, Korea
| |
Collapse
|
50
|
Ding HY, Wu PS, Wu MJ. Cleome rutidosperma and Euphorbia thymifolia Suppress Inflammatory Response via Upregulation of Phase II Enzymes and Modulation of NF-κB and JNK Activation in LPS-Stimulated BV2 Microglia. Int J Mol Sci 2016; 17:ijms17091420. [PMID: 27618898 PMCID: PMC5037699 DOI: 10.3390/ijms17091420] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2016] [Revised: 08/07/2016] [Accepted: 08/22/2016] [Indexed: 11/16/2022] Open
Abstract
Cleome rutidosperma DC. and Euphorbia thymifolia L. are herbal medicines used in traditional Indian and Chinese medicine to treat various illnesses. Reports document that they have antioxidant and anti-inflammatory activities; nonetheless, the molecular mechanisms involved in their anti-inflammatory actions have not yet been elucidated. The anti-neuroinflammatory activities and underlying mechanisms of ethanol extracts of Cleome rutidosperma (CR) and Euphorbia thymifolia (ET) were studied using lipopolysaccharide (LPS)-stimulated microglial cell line BV2. The morphology changes and production of pro-inflammatory mediators were assayed. Gene expression of inflammatory genes such as inducible nitric oxide synthase (iNOS), cyclooxygenase (COX)-2, interleukin (IL)-1β, and CC chemokine ligand (CCL)-2, as well as phase II enzymes such as heme oxygenase (HO)-1, the modifier subunit of glutamate cysteine ligase (GCLM) and NAD(P)H quinone dehydrogenase 1 (NQO1), were further investigated using reverse transcription quantitative-PCR (RT-Q-PCR) and Western blotting. The effects of CR and ET on mitogen activated protein kinases (MAPKs) and nuclear factor (NF)-κB signaling pathways were examined using Western blotting and specific inhibitors. CR and ET suppressed BV2 activation, down-regulated iNOS and COX-2 expression and inhibited nitric oxide (NO) overproduction without affecting cell viability. They reduced LPS-mediated tumor necrosis factor (TNF) and IL-6 production, attenuated IL-1β and CCL2 expression, but upregulated HO-1, GCLM and NQO1 expression. They also inhibited p65 NF-κB phosphorylation and modulated Jun-N terminal kinase (JNK) activation in BV2 cells. SP600125, the JNK inhibitor, significantly augmented the anti-IL-6 activity of ET. NF-κB inhibitor, Bay 11-7082, enhanced the anti-IL-6 effects of both CR and ET. Znpp, a competitive inhibitor of HO-1, attenuated the anti-NO effects of CR and ET. Our results show that CR and ET exhibit anti-neuroinflammatory activities by inhibiting pro-inflammatory mediator expression and production, upregulating HO-1, GCLM and NQO1, blocking NF-κB and modulating JNK signaling pathways. They may offer therapeutic potential for suppressing overactivated microglia and alleviating neurodegeneration.
Collapse
Affiliation(s)
- Hsiou-Yu Ding
- Department of Cosmetic Science, Chia Nan University of Pharmacy and Science, Tainan 717, Taiwan.
| | - Pei-Shan Wu
- Department of Biotechnology, Chia Nan University of Pharmacy and Science, Tainan 717, Taiwan.
| | - Ming-Jiuan Wu
- Department of Biotechnology, Chia Nan University of Pharmacy and Science, Tainan 717, Taiwan.
| |
Collapse
|