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Yi Y, Li T, Lv C, He W, Li W, Zhou X, Qin S. Proanthocyanidins isolated from lotus seed skin mitigate glycolipid metabolism disorder through the p38/Nrf2/NF-κB signaling pathway. Acta Biochim Biophys Sin (Shanghai) 2024. [PMID: 38761010 DOI: 10.3724/abbs.2024042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/20/2024] Open
Abstract
Lotus seed skin extract is rich in flavonoids, making it a promising candidate for developing health products. In a previous study, we found that proanthocyanidins from lotus seed skin, particularly proanthocyanidin B1 (PB1), can indirectly activate the Nrf2 signaling pathway, exerting an antioxidant effect. In this study, we isolate proanthocyanidins from lotus seed skin (PLS) using ethanol extraction and RP-HPLC identification, and investigate its effects on glycolipid metabolism both in vivo and in vitro. Our results demonstrate that PLS reduces body weight in high-fat diet (HFD) mice by decreasing feed efficiency. PLS also normalizes serum glucose, insulin secretion, glycosylated hemoglobin (HbA1c), and intraperitoneal glucose tolerance (IPGTT). Furthermore, PLS significantly improves blood lipid parameters and inhibits the expressions of six proinflammatory factors, including IL-1α, IL-1β, IL-3, IL-6, IFN-γ and TNF-α in HFD mice. Additionally, analysis of fresh liver tissues reveals that PLS and PB1 induce the expressions of antioxidant proteins such as HO-1 and NQO1 by activating the p38-Nrf2 signaling pathway and inhibiting the NF-κB signaling pathway. In conclusion, proanthocyanidins from lotus seed skin regulate glycolipid metabolism disorders by targeting the p38/Nrf2/NF-κB signaling pathway. Our study offers a new approach for the high-value comprehensive utilization of lotus seed skin by-products and precise dietary intervention for metabolic syndrome.
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Affiliation(s)
- Yuhang Yi
- College of Food Science and Technology, Hunan Agricultural University, Changsha 410128, China
| | - Tao Li
- Hunan Agricultural Products Processing Institute, Hunan Academy of Agricultural Sciences, Changsha 410125, China
| | - Chenghao Lv
- College of Biological Science and Technology, Hunan Agricultural University, Changsha 410128, China
| | - Wenjiang He
- College of Biological Science and Technology, Hunan Agricultural University, Changsha 410128, China
- Infinitus (China) Company Ltd., Guangzhou 510665, China
| | - Wenzhi Li
- Infinitus (China) Company Ltd., Guangzhou 510665, China
| | - Xixin Zhou
- College of Biological Science and Technology, Hunan Agricultural University, Changsha 410128, China
| | - Si Qin
- College of Food Science and Technology, Hunan Agricultural University, Changsha 410128, China
- College of Biological Science and Technology, Hunan Agricultural University, Changsha 410128, China
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Salem MB, Saleh AM, Seif El-Din SH, Samir S, Hammam OA, El-Lakkany NM. Molecular docking, characterization, ADME/toxicity prediction, and anti-ulcer activity of new quercetin derivatives on indomethacin-induced gastric ulcer in mice. Toxicol Appl Pharmacol 2024; 484:116880. [PMID: 38447874 DOI: 10.1016/j.taap.2024.116880] [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: 10/16/2023] [Revised: 02/22/2024] [Accepted: 02/28/2024] [Indexed: 03/08/2024]
Abstract
Gastric ulcer (GU) is a serious upper gastrointestinal tract disorder that affects people worldwide. The drugs now available for GU treatment have a high rate of relapses and drug interactions, as well as mild to severe side effects. As a result, new natural therapeutic medications for treating GU with fewer negative side effects are desperately needed. Because of quercetin's (QCT) diverse pharmacological effects and unique structural features, we decided to semi-synthesize new QCT derivatives and test them for antiulcer activity. Docking assays were performed on the synthesized compounds to determine their affinity for TLR-4/MD-2, MyD88/TIR, and NF-κB domains, an important inflammatory pathway involved in GU development and progression. Mice were given oral famotidine (40 mg/kg/day), QCT, QCT pentamethyl (QPM), or QCT pentaacetyl (QPA) (50 mg/kg/day) for 5 days before GU induction by a single intraperitoneal injection of indomethacin (INDO; 18 mg/kg). QPM and QPA have a stronger binding affinity for TLR-4/MD-2, MyD88/TIR and NF-κB domains than QCT. In comparison, they demonstrated the greatest reduction in ulcer score and index, gastric MDA and nitric oxide (NO) contents, MyD88 and NF-κB expressions, and gastric TLR-4 immunostaining. They also enhanced the levels of GSH, CAT, COX-1, and COX-2 in the gastric mucosa, as well as HO-1 and Nrf2 expression, with histological regression in gastric mucosal lesions, with QPA-treated mice demonstrating the best GU healing. QPA is safe against all of the target organs and adverse pathways studied, with good ADME properties. However, further in vitro experiments are necessary to demonstrate the inhibitory effects of QPM and QPA on the protein targets of interest. In addition, preclinical research on its bioavailability and safety is essential before clinical management can be undertaken. Overall, the new QPA derivative could one day serve as the basis for a new class of potential antiulcer drugs.
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Affiliation(s)
- Maha B Salem
- Pharmacology Department, Theodor Bilharz Research Institute, Giza, Egypt.
| | - Abdulrahman M Saleh
- Pharmaceutical Medicinal Chemistry & Drug Design Department, Faculty of pharmacy (Boys), Al-Azhar University, Cairo, Egypt
| | | | - Safia Samir
- Biochemistry and Molecular Biology Department, Theodor Bilharz Research Institute, Giza, Egypt
| | - Olfat A Hammam
- Pathology Department, Theodor Bilharz Research Institute, Giza, Egypt
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Wang T, Gong X, Xia C, Kong W, Geng S, Jiang H, Xiao E, Wang H, Yu Y, Li C, Yuan K. An integrated transcriptomics and network pharmacology approach to explore the mechanism of Wang-Bi tablet against SAPHO syndrome. Int J Rheum Dis 2024; 27:e15077. [PMID: 38402418 DOI: 10.1111/1756-185x.15077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Revised: 01/20/2024] [Accepted: 01/27/2024] [Indexed: 02/26/2024]
Abstract
BACKGROUND SAPHO syndrome is recognized as a rare entity with damage to skin and bones due to inflammation. Currently, the treatment for SAPHO syndrome is still a challenge in clinical practice. In this study, an integrated transcriptomics and network pharmacology approach was applied to explore the therapeutic effect and mechanism of Wang-Bi tablet (WBT) on SAPHO syndrome. METHODS The main components of WBT and their targets, as well as the targets of SAPHO syndrome, were collected from databases. Network visualization was performed using Cytoscape software. The GO and KEGG enrichment analysis was executed by David dataset. Then, the molecular mechanism of WBT improving SAPHO syndrome was validated by transcriptomics of peripheral blood neutrophils in SAPHO syndrome. Finally, the above results were validated by molecular docking. RESULTS The Network Pharmacology results showed there are 152 core targets for WBT treatment on SAPHO syndrome. RNA-seq data showed 442 differentially expressed genes (DEGs) in peripheral blood neutrophils of SAPHO patients. Intriguingly, NIK/NF-kappaB-, MyD88-dependent toll-like receptor-, and MAPK pathway were included in the enrichment results of network pharmacology and RNA-seq. Moreover, we verified that the core components of WBT have good affinity with the core targets of NIK/NF-kappaB-, MyD88-dependent toll-like receptor-, and MAPK pathway by molecular docking. CONCLUSIONS This study illustrated that the possible mechanisms of WBT against SAPHO syndrome may be related to NIK/NF-kappaB-, MyD88-dependent toll-like receptor-, and MAPK pathway, and further experiments are needed to prove these predictions.
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Affiliation(s)
- Ting Wang
- School of Life Sciences, Beijing University of Chinese Medicine, Beijing, China
| | - Xun Gong
- Guang'an Men Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Congmin Xia
- Guang'an Men Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Weijia Kong
- Graduate School of Beijing University of Chinese Medicine, Beijing, China
| | - Shaohui Geng
- School of Life Sciences, Beijing University of Chinese Medicine, Beijing, China
| | - Haixu Jiang
- School of Life Sciences, Beijing University of Chinese Medicine, Beijing, China
| | - Enfan Xiao
- School of Life Sciences, Beijing University of Chinese Medicine, Beijing, China
| | - Hesong Wang
- School of Life Sciences, Beijing University of Chinese Medicine, Beijing, China
| | - Yingcai Yu
- Department of Biochemistry, College of Life Sciences, Jiangxi University of Chinese Medicine, Nanchang, China
| | - Chen Li
- Department of Rheumatology, Fangshan Hospital, Beijing University of Chinese Medicine, Beijing, China
| | - Kai Yuan
- School of Life Sciences, Beijing University of Chinese Medicine, Beijing, China
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Bang J, Kim G, Young Park S, Jung HR, Kim SH, Kim JM. GCSB-5 regulates inflammatory arthritis and pain by modulating the mitogen-activated protein kinase signaling pathway in a murine model of rheumatoid arthritis. Arch Rheumatol 2023; 38:566-578. [PMID: 38125068 PMCID: PMC10728744 DOI: 10.46497/archrheumatol.2023.9643] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Accepted: 09/15/2022] [Indexed: 12/23/2023] Open
Abstract
Objectives This study aimed to determine whether GCSB-5 has anti-inflammatory and antinociceptive effects in mice with collagen-induced arthritis (CIA), an animal model of rheumatoid arthritis (RA), and investigate the influence of GCSB-5 on the mitogen-activated protein kinase (MAPK) pathway. Materials and methods The experimental animal study was designed to include five groups: CIA mice treated with GCSB-5 (300 mg/kg), GCSB-5 (600 mg/kg), celecoxib (60 mg/kg), or saline for four weeks, and nontreated control mice. The clinical severity of arthritis was scored. Nociceptive thresholds were measured by using a von Frey dynamic plantar analgesimeter. The MAPK pathway was evaluated in mouse synovium. The expression of channels associated with pain signaling was assessed by western blot and immunohistochemical staining. Results GCSB-5 treatment diminished the severity of clinical arthritis and increased the nociceptive threshold in mice with CIA. Celecoxib, a positive control drug, also showed comparable changes. Clinical arthritis scores were inversely related to mechanical thresholds. GCSB-5 administration decreased the levels of anti-type II collagen antibody and inflammatory cytokines in the sera of mice with CIA. Furthermore, ERK, p38 MAPK, and JNK phosphorylation were downregulated and TRPV1 and ASIC3 expression were decreased in the synovium of GCSB-5-treated mice compared to salinetreated mice. Interleukin-6-induced TRPV1 and ASIC3 upregulation were also inhibited by GCSB-5 in human RA fibroblast-like synoviocytes in vitro. Conclusion GCSB-5 decreased inflammatory arthritis and pain in a murine model of RA. The results present evidence that GCSB-5 may be beneficial for relieving pain as well as decreasing inflammation in autoimmune arthritis, such as RA.
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Affiliation(s)
- Jihye Bang
- Department of Chronic Disease Convergence Research, Division of Allergy and Respiratory Disease Research, Korea National Institute of Health, Korea Disease Control and Prevention Agency, Cheongju, South Korea
| | - Gyeonghwa Kim
- Division of Rheumatology, Department of Internal Medicine, School of Medicine & Institute for Medical Science, Keimyung University, Daegu, South Korea
| | - Soo Young Park
- Department of Internal Medicine,School of Medicine, Kyungpook National University, Kyungpook National University Hospital, Daegu, South Korea
| | - Hye Ra Jung
- Department of Pathology, Keimyung University School of Medicine, Daegu, South Korea
| | - Sang-Hyon Kim
- Division of Rheumatology, Department of Internal Medicine, School of Medicine & Institute for Medical Science, Keimyung University, Daegu, South Korea
| | - Ji-Min Kim
- Division of Rheumatology, Department of Internal Medicine, School of Medicine & Institute for Medical Science, Keimyung University, Daegu, South Korea
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Xie Y, Deng Q, Guo M, Li X, Xian D, Zhong J. Proanthocyanidins: A novel approach to Henoch‑Schonlein purpura through balancing immunity and arresting oxidative stress via TLR4/MyD88/NF‑κB signaling pathway (Review). Exp Ther Med 2023; 25:300. [PMID: 37229322 PMCID: PMC10203752 DOI: 10.3892/etm.2023.11999] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2022] [Accepted: 04/04/2023] [Indexed: 05/27/2023] Open
Abstract
Henoch-Schonlein purpura (HSP), a recurrent and immunoglobulin (Ig)A-mediated vasculitis, presents not only as skin lesions but also as systemic involvement that can be life-threatening. Although the etiology of HSP remains unknown, immune imbalance and oxidative stress (OS) are primary contributors to its pathogenesis, alongside the abnormal activation of Toll-like receptor (TLR)/myeloid differentiation primary response gene 88 (MyD88)/nuclear factor-κB (NF-κB) pathway. TLRs, especially TLR4, stimulate downstream signaling molecules such as NF-κB and proinflammatory cytokines, which are released when TLRs combine with the key adapter molecule MyD88. This leads to the activation of T helper (Th) cell 2/Th17 and overproduction of reactive oxygen species (ROS). The function of regulatory T (Treg) cells is suppressed in the process. Th17/Treg imbalance then produces various inflammatory cytokines to promote proliferation and differentiation of B cells and the secretion of antibodies. IgA is secreted, and it binds to vascular endothelial surface receptors where the complex induces injury of the vascular endothelial cells. Additionally, excessive ROS creates OS that leads to an inflammatory response and vascular cell apoptosis or necrosis, thereby contributing to vascular endothelial damage and HSP occurrence. Proanthocyanidins are active compounds naturally enriched in fruits, vegetables and plants. Proanthocyanidins have diverse properties, including anti-inflammatory, antioxidant, antibacterial, immunoregulatory, anticarcinogenic and vascular protective effects. Proanthocyanidins are used in the management of various diseases. Proanthocyanidins regulate T cells, equilibrate immunity and arrest OS by inhibiting the TLR4/MyD88/NF-κB signaling pathway. Considering the pathogenesis of HSP and the properties of proanthocyanidins, the present study hypothesized that these compounds may potentially lead to HSP recovery through modulating the immune equilibrium and preventing OS by inhibiting the TLR4/MyD88/NF-κB pathway. To the best of our knowledge, however, little is known about the positive effects of proanthocyanidins against HSP. The present review summarizes the potential of proanthocyanidins to treat HSP.
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Affiliation(s)
- Yuxin Xie
- Department of Dermatology, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan 646000, P.R. China
| | - Qiyan Deng
- Department of Dermatology, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan 646000, P.R. China
| | - Menglu Guo
- Department of Dermatology, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan 646000, P.R. China
| | - Xiaolong Li
- Department of Dermatology, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan 646000, P.R. China
| | - Deihai Xian
- Department of Neurobiology, Southwest Medical University, Luzhou, Sichuan 646000, P.R. China
| | - Jianqiao Zhong
- Department of Dermatology, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan 646000, P.R. China
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Shabbir MA, Mehak F, Khan MR, Ahmed W, Nawaz MF, Hassoun A, Bhat ZF, Aadil RM. Unraveling the role of natural functional oils in modulating osteoarthritis related complications. Crit Rev Food Sci Nutr 2023; 64:6881-6901. [PMID: 36762672 DOI: 10.1080/10408398.2023.2176815] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/11/2023]
Abstract
Osteoarthritis (OA) is a common joint disease and has been studied extensively in recent years as no promising therapy available so far for its treatment and remains a great challenge for health care specialists. Although the identification of some major mechanisms that contribute to this disease suggests a plethora of bioactive agents in tackling the associated complications yet OA's pathophysiology is still poorly understood owing to complex mechanistic changes observed. Experimental research is now exploring a wide range of therapeutically effective agents in an effort to find a way to repair OA-related joint degeneration and halt it from getting worse. Data was acquired and reviewed from most relevant and recent studies. This review summarizes the studies that are currently available and focuses on how various unconventional functional oils affect osteoarthritis and the affected joint tissues. An analysis of the recent scientific literature allowed us to highlight the potential anti-arthritic properties of edible oils and their main constituents, which seems to suggest an interesting new potential therapeutic application. Due to eccentric nature of OA, it is necessary to concentrate initially on the management of symptoms. The evidence supporting functional oils chondroprotective potential is still accumulating, underpinning a global need for more sustainable natural sources of treatment. More clinical research that focuses on the consequences of long-term treatment, possible negative effects, and epigenetic implications is necessary to get optimistic results. However, different animal or clinical studies suggest that linolenic and linoleic fatty acids decreased chondrocyte oxidative stress, cartilage breakdown, and expression of inflammatory markers. Distinct fatty acids along with minor components of oils also reduced the generation of prostaglandins and decreased oxidative stress. Furthermore, the potential roles of the main components of edible oils and possible negative results (if any) are also reported. While no severe side effects have been reported for any edible oils. Overall, these studies identify and support the use of functional oils as an adjuvant therapy for the management of OA and as a means of symptomatic alleviation for OA patients. However, to prove the effectiveness or to draw precise conclusions, high-quality clinical trials are required.
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Affiliation(s)
- Muhammad Asim Shabbir
- National Institute of Food Science and Technology, University of Agriculture, Faisalabad, Pakistan
| | - Fakiha Mehak
- National Institute of Food Science and Technology, University of Agriculture, Faisalabad, Pakistan
| | - Moazzam Rafiq Khan
- National Institute of Food Science and Technology, University of Agriculture, Faisalabad, Pakistan
| | - Waqar Ahmed
- National Institute of Food Science and Technology, University of Agriculture, Faisalabad, Pakistan
| | - Muhammad Furqan Nawaz
- National Institute of Food Science and Technology, University of Agriculture, Faisalabad, Pakistan
| | - Abdo Hassoun
- Univ. Littoral Côte d'Opale, UMRt 1158 BioEcoAgro, USC ANSES, INRAe, Univ. Artois, Univ. Lille, Univ. Picardie Jules Verne, Univ. Liège, Junia, France
- Sustainable AgriFoodtech Innovation & Research (SAFIR), Arras, France
| | - Zuhaib F Bhat
- Division of Livestock Products Technology, SKUAST-J, Jammu, J&K, India
| | - Rana Muhammad Aadil
- National Institute of Food Science and Technology, University of Agriculture, Faisalabad, Pakistan
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Huang Z, Song S, Zhang D, Bian Z, Han J. Protective effects of Tripterygium glycoside on IL-1β-induced inflammation and apoptosis of rat chondrocytes via microRNA-216a-5p/TLR4/NF-κB axis. Immunopharmacol Immunotoxicol 2023; 45:61-72. [PMID: 36052873 DOI: 10.1080/08923973.2022.2115924] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
BACKGROUND This study is designed to fill the research gap concerning the efficacy of Tripterygium glycoside (TG) on Interleukin-1β (IL-1β)-induced inflammation and injury in chondrocytes. METHODS Chondrocytes were isolated from Sprague-Dawley rats. After the treatment with IL-1β and TG and transfection, the viability and apoptosis of chondrocytes were determined via Cell Counting Kit-8 (CCK-8) assay and flow cytometry. The levels of inflammatory cytokines tumor necrosis factor-α (TNF-α), interleukin-6 (IL-6), and IL-8 were determined by enzyme-linked immunosorbent assay (ELISA). Relative expression levels of potential microRNAs (miRNAs, miRs) that may target toll-like receptor 4 (TLR4), as well as apoptosis- and TLR4/nuclear factor-κB (TLR4/NF-κB) pathway-associated factors were quantified using quantitative real-time (qRT) PCR and western blot. The targeting relationship between miR-216a-5p and TLR4 was predicted by TargetScan and further confirmed by dual-luciferase reporter assay. RESULTS The viability was reduced yet the apoptosis and inflammation were promoted in IL-1β-treated chondrocytes, where upregulation of Bax, Cleaved caspase 3, TLR4, Myeloid differentiation factor 88 (MyD88), phosphorylation of P65 and IκBα yet downregulation of Bcl-2 and IκBα were evidenced. Strikingly, the above changes were reversed by TG. TG also offset the effects of IL-1β on repressing the expression of miR-216a-5p, the miRNA targeting TLR4. Additionally, TLR4 overexpression neutralized the impacts of TG upon viability, apoptosis, and TLR4 expression in IL-1β-treated chondrocytes, while all these effects induced by TLR4 overexpression could be restored by miR-216a-5p. CONCLUSIONS TG protects chondrocytes against IL-1β-induced inflammation and apoptosis via miR-216a-5p/TLR4/NF-κB axis.
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Affiliation(s)
- Zhen Huang
- Acupuncture and Massage Department, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou, PR China
| | - Shuanglin Song
- Acupuncture and Massage Department, Hangzhou First People's Hospital, Hangzhou, PR China
| | - Di Zhang
- Acupuncture and Massage Department, Hangzhou First People's Hospital, Hangzhou, PR China
| | - Zhenyu Bian
- Orthopedics Department, Hangzhou First People's Hospital, Hangzhou, PR China
| | - Jinsheng Han
- Massage Department, Hangzhou TCM Hospital Affiliated to Zhejiang Chinese Medical University, Hangzhou, PR China
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Zhao Y, Xie Y, Li X, Song J, Guo M, Xian D, Zhong J. The protective effect of proanthocyanidins on the psoriasis-like cell models via PI3K/AKT and HO-1. Redox Rep 2022; 27:200-211. [PMID: 36178125 PMCID: PMC9542435 DOI: 10.1080/13510002.2022.2123841] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Background Inflammation and oxidative stress (OS) are important contributors to psoriasis pathogenesis. Proanthocyanidins (PCs) have anti-inflammatory and anti-oxidative activities. Previously, we discovered that PCs alleviated psoriasis-like mice symptoms, likely via mitigating inflammation and OS damage. Objective To elucidate the protective mechanism underlying PCs against the damage of TNF-ɑ-induced psoriasis-like cell models. Methods Psoriasis-like cell models were established with 7.5 ng/mL TNF-ɑ and then subjected to different-concentrations PCs treatment. Finally, inflammatory and oxidative parameters were determined. Besides, LY294002 (PI3K inhibitor) and ZnPP (HO-1 inhibitor) were employed to investigate the roles of PI3K/AKT and HO-1 in PCs against psoriasis-like cell models. Results After TNF-α treatment, cells organized tightly and proliferated greatly (P<0.01); HO-1 expression dropped obviously, along with the increased OS/inflammatory indicators and the decreased antioxidants (P<0.05); consequently, psoriasis-like cell models were well established. In the presence of PCs, nevertheless, the proliferation rate and number of psoriasis-like cells evidently decreased (P<0.01), accompanied with enhanced HO-1 and antioxidants, and lowered OS/inflammatory indicators as well as phosphorylated JAK2/STAT3/PI3/AKT (P<0.01). Similar changes appeared after LY294002 pretreatment, regardless of PCs or not. But after ZnPP pretreatment with or without PCs, the opposite occurred. Conclusion The study reveals that PCs can suppress psoriasis-like cell proliferation and reduce inflammatory/OS damage through PI3K/AKT inhibition and HO-1 activation, thus promising a candidate for PCs in treating psoriasis.
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Affiliation(s)
- Yangmeng Zhao
- Department of Dermatology, the Affiliated Hospital of Southwest Medical University, Luzhou, People's Republic of China
| | - Yuxin Xie
- Department of Dermatology, the Affiliated Hospital of Southwest Medical University, Luzhou, People's Republic of China
| | - Xiaolong Li
- Department of Dermatology, the Affiliated Hospital of Southwest Medical University, Luzhou, People's Republic of China
| | - Jing Song
- Department of Dermatology, the Affiliated Hospital of Southwest Medical University, Luzhou, People's Republic of China
| | - Menglu Guo
- Department of Dermatology, the Affiliated Hospital of Southwest Medical University, Luzhou, People's Republic of China
| | - Dehai Xian
- Department of Anatomy, Southwest Medical University, Luzhou, People's Republic of China
| | - Jianqiao Zhong
- Department of Dermatology, the Affiliated Hospital of Southwest Medical University, Luzhou, People's Republic of China
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9
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Coutinho-Wolino KS, Almeida PP, Mafra D, Stockler-Pinto MB. Bioactive compounds modulating Toll-like 4 receptor (TLR4)-mediated inflammation: pathways involved and future perspectives. Nutr Res 2022; 107:96-116. [PMID: 36209684 DOI: 10.1016/j.nutres.2022.09.001] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Revised: 08/29/2022] [Accepted: 09/03/2022] [Indexed: 12/27/2022]
Abstract
Chronic inflammation is associated with the development and progression of several noncommunicable diseases, such as diabetes, cardiovascular disease, chronic kidney disease, cancer, and nonalcoholic fatty liver disease. Evidence suggests that pattern recognition receptors that identify pathogen-associated molecular patterns and danger-associated molecular patterns are crucial in chronic inflammation. Among the pattern recognition receptors, Toll-like receptor 4 (TLR4) stimulates several inflammatory pathway agonists, such as nuclear factor-κB, interferon regulator factor 3, and nod-like receptor pyrin domain containing 3 pathways, which consequently trigger the expression of pro-inflammatory biomarkers, increasing the risk of noncommunicable disease development and progression. Studies have focused on the antagonistic potential of bioactive compounds, following the concept of food as a medicine, in which nutritional strategies may mitigate inflammation via TLR4 modulation. Thus, this review discusses preclinical evidence concerning bioactive compounds from fruit, vegetable, spice, and herb extracts (curcumin, resveratrol, catechin, cinnamaldehyde, emodin, ginsenosides, quercetin, allicin, and caffeine) that may regulate the TLR4 pathway and reduce the inflammatory response. Bioactive compounds can inhibit TLR4-mediated inflammation through gut microbiota modulation, improvement of intestinal permeability, inhibition of lipopolysaccharide-TLR4 binding, and decreasing TLR4 expression by modulation of microRNAs and antioxidant pathways. The responses directly mitigated inflammation, especially nuclear factor-κB activation and inflammatory cytokines release. These findings should be considered for further clinical studies on inflammation-mediated diseases.
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Affiliation(s)
- Karen S Coutinho-Wolino
- Postgraduate Program in Cardiovascular Sciences, Fluminense Federal University (UFF), Niterói, RJ, Brazil.
| | - Patricia P Almeida
- Postgraduate Program in Pathology, Fluminense Federal University (UFF), Niterói, RJ, Brazil
| | - Denise Mafra
- Postgraduate Program in Nutrition Sciences, Faculty of Nutrition, Fluminense Federal University, Niterói, Brazil; Postgraduate Program in Medical Sciences, Faculty of Medicine, Fluminense Federal University, Niterói, Brazil
| | - Milena B Stockler-Pinto
- Postgraduate Program in Cardiovascular Sciences, Fluminense Federal University (UFF), Niterói, RJ, Brazil; Postgraduate Program in Pathology, Fluminense Federal University (UFF), Niterói, RJ, Brazil; Postgraduate Program in Nutrition Sciences, Faculty of Nutrition, Fluminense Federal University, Niterói, Brazil
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10
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Heo YR, Son CN, Baek WK, Kim SH. Grape seed proanthocyanidin extract induces apoptotic and autophagic cell death in rheumatoid arthritis fibroblast-like synoviocytes. Arch Rheumatol 2022; 37:393-403. [PMID: 36589610 PMCID: PMC9791554 DOI: 10.46497/archrheumatol.2022.9034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2021] [Accepted: 10/28/2021] [Indexed: 01/03/2023] Open
Abstract
Objectives In this study, we aimed to evaluate the association between grape seed proanthocyanidin extract (GSPE) and rheumatoid arthritis-fibroblast-like synoviocytes (RA-FLSs) and to investigate whether GSPE induces cell death in RA-FLSs. Materials and methods The FLSs were isolated from RA synovial tissues. Cell viability and cell cycle staging were analyzed using a hemocytometer and flow cytometry. Caspase 3 and poly (ADP-ribose) polymerase (PARP) proteins were analyzed using Western blotting with z-VAD-fmk. Protein LC3 and polyubiquitin-binding protein p62 that were degraded by autophagy were evaluated using Western blotting with 3-methyladenine and chloroquine. Reactive oxygen species (ROS) were also evaluated. Results When RA-FLSs were treated with GSPE, cell viability decreased, the number of cells in sub-G1 and G2/M phases increased, and the expression of pro-PARP and pro-caspase 3 proteins decreased in a concentration-dependent manner. This result was offset, when the cells were co-treated with the pan-caspase inhibitor z-VAD-fmk. The reduced cell viability, increased expression of LC3-II protein, and reduced expression of p62 protein with GSPE treatment were offset, when RA-FLSs were co-treated with GSPE and autophagy inhibitors 3-methyladenine and chloroquine. The level of ROS in RA-FLSs treated with GSPE was significantly lower than treatment with N-acetyl-cysteine, a ROS inhibitor. Conclusion Our study results show that GSPE induces apoptotic and autophagic cell death and inhibites reactive oxygen species in RA-FLSs.
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Affiliation(s)
- Ye-Rin Heo
- Department of Internal Medicine, Division of Rheumatology, Keimyung University School of Medicine, Daegu, Republic of Korea
| | - Chang-Nam Son
- Department of Internal Medicine, Division of Rheumatology, Keimyung University School of Medicine, Daegu, Republic of Korea
| | - Won-Ki Baek
- Department of Microbiology, Keimyung University School of Medicine, Daegu, Republic of Korea
| | - Sang-Hyon Kim
- Department of Internal Medicine, Division of Rheumatology, Keimyung University School of Medicine, Daegu, Republic of Korea
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Institute for Medical Science, Keimyung University, Daegu, Republic of Korea
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11
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Zhang L, Chen J, Liang R, Liu C, Chen M, Chen J. Synergistic Anti-Inflammatory Effects of Lipophilic Grape Seed Proanthocyanidin and Camellia Oil Combination in LPS-Stimulated RAW264.7 Cells. Antioxidants (Basel) 2022; 11:antiox11020289. [PMID: 35204172 PMCID: PMC8868477 DOI: 10.3390/antiox11020289] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Revised: 01/28/2022] [Accepted: 01/29/2022] [Indexed: 01/08/2023] Open
Abstract
Combination drug therapy has become an effective strategy to control inflammation. Lipophilic grape seed proanthocyanidin (LGSP) and camellia oil (CO) have been independently investigated to show anti-inflammatory effects, but their synergistic anti-inflammatory effects are unknown. The aim of this study was to investigate the synergistic anti-inflammatory effects of LGSP and CO. The anti-inflammatory activity of LGSP and CO individual or in combination on RAW264.7 cells was detected by MTT assay, Griess reagent, RT-PCR, 2′,7′-dichlorfluoroescein diacetate and Western blot analysis. The combined treatment of LGSP with CO (20 μg/mL and 1 mg/mL) synergistically suppressed the production of NO, TNF-α, IL-6 and ROS. Further studies showed that the synergistic effect was attributed to their suppression of the activation of NF-κB and MAPK signaling pathways. Overall, our findings demonstrate the potential synergistic effect between LGSP and CO in LPS-induced inflammation.
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Affiliation(s)
- Linli Zhang
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China; (L.Z.); (R.L.); (C.L.); (J.C.)
| | - Juan Chen
- Moutai Institute, Renhuai 564501, China;
| | - Ruihong Liang
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China; (L.Z.); (R.L.); (C.L.); (J.C.)
| | - Chengmei Liu
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China; (L.Z.); (R.L.); (C.L.); (J.C.)
| | - Mingshun Chen
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China; (L.Z.); (R.L.); (C.L.); (J.C.)
- Correspondence: ; Tel.: +86-0791-88305871
| | - Jun Chen
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China; (L.Z.); (R.L.); (C.L.); (J.C.)
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12
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Shi YJ, Zhao XH. Impact of the Plastein Reaction of Casein Hydrolysates in the Presence of Exogenous Amino Acids on Their Anti-Inflammatory Effect in the Lipopolysaccharide-Stimulated Macrophages. Foods 2022; 11:196. [PMID: 35053927 PMCID: PMC8775256 DOI: 10.3390/foods11020196] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Revised: 12/31/2021] [Accepted: 01/11/2022] [Indexed: 02/01/2023] Open
Abstract
In this study, papain-generated casein hydrolysates (CH) with a degree of hydrolysis of 13.7% were subjected to a papain-mediated plastein reaction in the absence or presence of one of the exogenous amino acids-Gly, Pro, and Hyp-to prepare four plastein modifiers, or mixed with one of three amino acids to prepare three mixtures. The assay results confirmed that the reaction reduced free NH2 for the modifiers and caused amino acid incorporation and peptide condensation. When RAW264.7 macrophages were exposed to the CH, modifiers, and mixtures, these samples promoted macrophage growth and phagocytosis in a dose-dependent manner. In addition, the CH shared similar activity in the cells as the mixtures, while the modifiers (especially the PCH-Hyp prepared with Hyp addition) exerted higher potential than CH, the mixtures, and PCH (the modifier prepared without amino acid addition). The plastein reaction thus enhanced CH bioactivity in the cells. When RAW264.7 macrophages were stimulated with lipopolysaccharide (LPS), the inflammatory cells produced more lactate dehydrogenase (LDH) release and reactive oxygen species (ROS) formation, and caused more four inflammatory mediators (NO, PGE2, TNF-α, and IL-6) and two anti-inflammatory mediators (TGF-β1 and IL-10). However, the PCH-Hyp, PCH, and CH at dose levels of 100 μg/mL could combat against the LPS-induced inflammation. Overall, the PCH-Hyp was more active than the CH and PCH in reducing LDH release, ROS formation, and the secretion of these inflammatory mediators, or in increasing the secretion of the anti-inflammatory mediators. The qPCR and Western blot analysis results further confirmed that these samples had anti-inflammatory effects on the stimulated cells by suppressing the LPS-induced activation of the NF-κB signaling pathway, via regulating the mRNA/miRNA expression of iNOS, IL-6, TNF-α, IL-1β, COX-2, TLR4, IL-10, TGF-β1, miR-181a, miR-30d, miR-155, and miR-148, as well as the protein expression of MyD88, p-IKKα, p-IκBα, p-NF-κB p65, and iNOS, involved in this signaling pathway. In addition, the immunofluorescence assay results revealed that these samples could block the LPS-mediated nuclear translocation of the p65 protein and displayed the same function as the NF-κB inhibitor BAY 11-7082. It was concluded that CH could be endowed with higher anti-inflammatory activity to the macrophages by performing a plastein reaction, particularly that in the presence of exogenous Hyp.
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Affiliation(s)
- Yun-Jiao Shi
- Key Laboratory of Dairy Science, Ministry of Education, Northeast Agricultural University, Harbin 150030, China;
| | - Xin-Huai Zhao
- Key Laboratory of Dairy Science, Ministry of Education, Northeast Agricultural University, Harbin 150030, China;
- School of Biology and Food Engineering, Guangdong University of Petrochemical Technology, Maoming 525000, China
- Research Centre of Food Nutrition and Human Healthcare, Guangdong University of Petrochemical Technology, Maoming 525000, China
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13
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Astragalus Polysaccharides and Saponins Alleviate Liver Injury and Regulate Gut Microbiota in Alcohol Liver Disease Mice. Foods 2021; 10:foods10112688. [PMID: 34828972 PMCID: PMC8623381 DOI: 10.3390/foods10112688] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2021] [Revised: 10/22/2021] [Accepted: 11/01/2021] [Indexed: 12/12/2022] Open
Abstract
Astragalus, a medical and edible plant in China, shows several bioactive properties. However, the role of astragalus in attenuating alcoholic liver disease (ALD) is less clear. The objective of this project is to investigate the improving effect of astragalus saponins (AS) and astragalus polysaccharides (AP), which are the two primary constituents in astragalus on hepatic injury induced by alcohol, and the potential mechanisms of action. Different doses of AS (50 and 100 mg/kg bw) and AP (300 and 600 mg/kg bw) were orally given to alcohol-treated mice for four weeks. The results demonstrated that both AP and AS could reverse the increase of the levels of TC, TG, FFA, and LDL-C in serum, and the decrease of serum HDL-C content, as well as the elevation of hepatic TC and TG levels induced by alcohol. The activities of AST, ALT, ALP, and γ-GT in ALD mice were raised after AP and AS supplementation. The antioxidant markers (SOD, CAT, GSH, and GSH-Px) were obviously augmented and the pro-inflammatory cytokines (TNF-α, IL-6 and IL-1β) and hepatic histological variations were alleviated by AP and AS, which was in line with the levels of oxidative stress-associated genes (Keap1, Nfe2l2, Nqo1, and Hmox1) and inflammation-associated genes (Tlr4, Myd88 and Nfkb1). In addition, AS exerted a more efficient effect than AP and the results presented dose proportionality. Moreover, AS and AP could modulate the intestinal microbiota disturbance induced by alcohol. Overall, AS and AP administration could ameliorate lipid accumulation in the serum and liver, as well as hepatic function, oxidative stress, inflammatory response, and gut flora disorders in mice as a result of alcohol.
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Gasparrini M, Forbes-Hernandez TY, Cianciosi D, Quiles JL, Mezzetti B, Xiao J, Giampieri F, Battino M. The efficacy of berries against lipopolysaccharide-induced inflammation: A review. Trends Food Sci Technol 2021. [DOI: 10.1016/j.tifs.2021.01.015] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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15
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Liu C, Lin L, Cui W, Wang L, Ai M, Zhao Z, Ma X, Li S. Lactiplantibacillus plantarum HG20 attenuates II type collagen-induced rheumatoid arthritis in rats via anti-inflammatory and inhibition of apoptosis. J Appl Microbiol 2021; 132:2323-2330. [PMID: 34689406 DOI: 10.1111/jam.15333] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2021] [Revised: 09/23/2021] [Accepted: 10/11/2021] [Indexed: 11/26/2022]
Abstract
AIMS This study aimed to explore the therapeutic effects of Lactiplantibacillus plantarum HG20 (HG20) on collagen-induced arthritis (CIA) rats and its mechanism. METHODS AND RESULTS CIA rats were established by injecting bovine type II collagen for 7 days, and treated by intragastric administration HG20 for 21 days. The foot palm temperature and arthritis score were measured once a week. The pathological changes in the knee joint were observed by hematoxylin and eosin staining. The levels of cytokines were detected by enzyme linked immunosorbent assay, and the effects of HG20 on inflammatory and apoptosis pathway of spleen cells were detected by western blot analysis. The results indicated that HG20 reduced the joint swelling degree and foot palm temperature, inhibited the development of joint histopathology, decreased the levels of pro-inflammatory cytokines, down-regulate the expression of pro-inflammatory cytokines by nuclear factor kappa-B pathway, and inhibited the apoptosis of spleen cells by inhibiting phosphatidylinositol 3-kinase/protein kinase B pathway and regulating apoptosis pathways. CONCLUSIONS HG20 had an adjuvant therapeutic effect on arthritis in CIA rats, and its mechanism might be related to the inflammatory and apoptosis pathway. SIGNIFICANCE AND IMPACT OF STUDY These results revealed that HG20 could be used as a functional probiotic in the field of food and medical, and which played a potential role in the prevention and treatment of arthritis.
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Affiliation(s)
- Chunhong Liu
- Special Education College, Changchun University, Changchun, China
| | - Li Lin
- Jilin Mingzhiyuan Biotechnology Co., Ltd., Changchun, China
| | - Weidong Cui
- Jilin Mingzhiyuan Biotechnology Co., Ltd., Changchun, China
| | - Lei Wang
- Institute of Agro-Food Technology, Jilin Academy of Agricultural Sciences, Changchun, China
| | - Min Ai
- Special Education College, Changchun University, Changchun, China
| | - Zhongwei Zhao
- Special Education College, Changchun University, Changchun, China
| | - Xiaohan Ma
- Jilin Mingzhiyuan Biotechnology Co., Ltd., Changchun, China
| | - Shengyu Li
- Institute of Agro-Food Technology, Jilin Academy of Agricultural Sciences, Changchun, China
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16
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Xiao C, Jiao C, Xie Y, Ye L, Li Q, Wu Q. Grifola frondosa GF5000 improves insulin resistance by modulation the composition of gut microbiota in diabetic rats. J Funct Foods 2021. [DOI: 10.1016/j.jff.2020.104313] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2023] Open
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17
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Fraxetin inhibits interleukin-1β-induced apoptosis, inflammation, and matrix degradation in chondrocytes and protects rat cartilage in vivo. Saudi Pharm J 2021; 28:1499-1506. [PMID: 33424243 PMCID: PMC7783108 DOI: 10.1016/j.jsps.2020.09.016] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2020] [Accepted: 09/17/2020] [Indexed: 12/12/2022] Open
Abstract
Osteoarthritis (OA) is a disease characterized by degeneration of the joint complex due to cartilage destruction. Fraxetin, a widely used and studied coumarin compound extracted from a traditional Chinese herb (Qin Pi), has shown anti-inflammatory and antioxidant properties, but its effects on OA have not been studied. In the present study, western blotting, immunofluorescence, and terminal deoxynucleotidyl transferase (TdT) dUTP nick-end labeling (TUNEL) were used to evaluate the effects of fraxetin on IL-1β-induced apoptotic activity, inflammatory responses, and catabolism in rat chondrocytes. The results showed that fraxetin prevented IL-1β-induced apoptosis of chondrocytes and inhibited inflammatory mediator release by regulating the Toll-like receptor 4 (TLR4)/myeloid differentiation primary response 88 (MyD88)/nuclear factor (NF)-κB pathway in chondrocytes. Additionally, fraxetin suppressed the upregulation of matrix metalloproteinase 13 (MMP13) and degradation of collagen II in the extracellular matrix (ECM). Moreover, the effects of fraxetin in vivo were assessed in a monosodium iodoacetate (MIA)-induced rat model of OA using hematoxylin and eosin (H&E) and Safranin O-fast green staining and magnetic resonance imaging (MRI). The results showed that fraxetin protected the cartilage against destruction. In conclusion, fraxetin could be a potential therapeutic for OA.
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Key Words
- BSA, bovine albumin serum
- CCK-8, cell counting kit-8
- Catabolism
- DAMP, damage-associated molecular pattern
- DAPI, 4,6-diamidino-2-phenylindole
- ECL, enhanced chemiluminescence
- ECM, extracellular matrix
- Fraxetin
- H&E, hematoxylin and eosin
- HRP, horseradish peroxidase
- IL, interleukin
- IL-1β
- IgG, immunoglobulin G
- Inflammation
- IκBα, inhibitor of NF-κB-α
- MIA, monosodium iodoacetate
- MMP, matrix metalloproteinase
- MRI, magnetic resonance imaging
- MyD88, myeloid differentiation primary response 88
- NF, nuclear factor
- OA, osteoarthritis
- Osteoarthritis
- PBS, phosphate buffered saline, PMSF, phenylmethanesulphonyl fluoride
- PRR, pattern recognition receptor
- RIPA, radio-immunoprecipitation assay
- SD, Sprague-Dawley
- SDS-PAGE, sodium dodecyl sulfate–polyacrylamide gel electrophoresis
- SPF, specific pathogen free
- TLR, Toll-like receptor
- TLR4/MyD88/NF-κB signaling
- TNF-α, tumour necrosis factor
- TUNEL, TdT dUTP nick-end labeling
- TdT, terminal deoxynucleotidyl transferase
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18
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Ma X, Wang R, Yu S, Lu G, Yu Y, Jiang C. Anti-Inflammatory Activity of Oligomeric Proanthocyanidins Via Inhibition of NF-κB and MAPK in LPS-Stimulated MAC-T Cells. J Microbiol Biotechnol 2020; 30:1458-1466. [PMID: 32876071 PMCID: PMC9728330 DOI: 10.4014/jmb.2006.06030] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Revised: 08/19/2020] [Accepted: 08/26/2020] [Indexed: 12/15/2022]
Abstract
Oligomeric proanthocyanidins (OPCs), classified as condensed tannins, have significant antioxidation, anti-inflammation and anti-cancer effects. This study was performed to investigate the anti-inflammatory effects of OPCs and the mechanism underlying these effects in lipopolysaccharide (LPS)-stimulated bovine mammary epithelial cells (MAC-T). Real-time PCR and ELISA assays indicated that OPC treatment at 1, 3 and 5 μg/ml significantly reduced the mRNA and protein, respectively, of oxidant indicators cyclooxygenase-2 (COX-2) (p < 0.05) and inducible nitric oxide synthase (iNOS) (p < 0.01) as well as inflammation cytokines interleukin (IL)-6 (p < 0.01), IL-1β (p < 0.01) and tumor necrosis factor-α (TNF-α) (p < 0.05) in LPS-induced MAC-T cells. Moreover, OPCs downregulated LPSinduced phosphorylation of p65 and inhibitor of nuclear factor kappa B (NF-κB) (IκB) in the NF-κB signaling pathway (p < 0.01), and they inhibited p65 translocation from the cytoplasm to the nucleus as revealed by immunofluorescence test and western blot. Additionally, OPCs decreased phosphorylation of p38, extracellular signal regulated kinase and c-jun NH2-terminal kinase in the MAPK signaling pathway (p < 0.01). In conclusion, the anti-inflammatory and antioxidant activities of OPCs involve NF-κB and MAPK signaling pathways, thus inhibiting expression of pro-inflammatory factors and oxidation indicators. These findings provide novel experimental evidence for the further practical application of OPCs in prevention and treatment of bovine mastitis.
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Affiliation(s)
- Xiao Ma
- Chongqing Engineering Research Centre for Herbivores Resource Protection and Utilization, College of Animal Science and Technology, Southwest University, Chonqing 400715, P.R. China
| | - Ruihong Wang
- Chongqing Engineering Research Centre for Herbivores Resource Protection and Utilization, College of Animal Science and Technology, Southwest University, Chonqing 400715, P.R. China
| | - Shitian Yu
- Chongqing Engineering Research Centre for Herbivores Resource Protection and Utilization, College of Animal Science and Technology, Southwest University, Chonqing 400715, P.R. China
| | - Guicong Lu
- Chongqing Engineering Research Centre for Herbivores Resource Protection and Utilization, College of Animal Science and Technology, Southwest University, Chonqing 400715, P.R. China
| | - Yongxiong Yu
- Chongqing Engineering Research Centre for Herbivores Resource Protection and Utilization, College of Animal Science and Technology, Southwest University, Chonqing 400715, P.R. China,Y.X.Yu E-mail:
| | - Caode Jiang
- Chongqing Engineering Research Centre for Herbivores Resource Protection and Utilization, College of Animal Science and Technology, Southwest University, Chonqing 400715, P.R. China,Corresponding authors C.D.Jiang Phone/Fax: +86-023-68251196 E-mail:
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19
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Tanideh N, Ashkani-Esfahani S, Sadeghi F, Koohi-Hosseinabadi O, Irajie C, Iraji A, Lubberts B, Mohammadi Samani S. The protective effects of grape seed oil on induced osteoarthritis of the knee in male rat models. J Orthop Surg Res 2020; 15:400. [PMID: 32912277 PMCID: PMC7488061 DOI: 10.1186/s13018-020-01932-y] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/16/2019] [Accepted: 08/31/2020] [Indexed: 12/15/2022] Open
Abstract
Background Osteoarthritis (OA), though being treated via various methods and medicines, is still a major healthcare concern mostly due to the increase in diagnosis of these age-related diseases. The present study aimed at investigating the effects of oral and intra articular injection of grape seed oil on OA in male rat models. Methods and materials Seventy male rats were selected and their anterior cruciate ligament was cut to induce OA. They were divided into 7 groups (n = 10): C1, no treatment; C2, receiving 300 mg/day of Piascledine per os (PO); C3, 1 mg sodium hyaluronate intra-articularly in days 1, 7, 14; C4, 1 mg methyl-prednisolone acetate intra-articularly; E1, avocado and grape seed oil combination (2:1, 300 mg/day) PO; E2, 500 mg/day of grape seed oil PO; E3, 200 mg/day grape seed oil intra-articularly. After 10 weeks, the rats were anesthetized and evaluated radiologically and histopathologically. P value ≤ 0.05 was considered as statistically significant. Results All the groups made significant differences with C1 regarding all inspected radiological criteria (P ≤ 0.05). E1 and E3 showed significantly better effects on medial femoral condyle, medial tibial condyle, joint space width, total osteophyte, and OA scores (P ≤ 0.04). Joint surface, matrix, cell distribution, cell population viability, calcification, and subchondral bone in treatment groups had significantly better scores versus C1 (P ≤ 0.04). E1 and E3 had significantly superior results regarding joint surface, cell viability, and calcification (P ≤ 0.04). Conclusions Grape seed oil has protective effects, both in injectable form and PO in combination with avocado, on OA in rats. Further clinical trials are necessary.
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Affiliation(s)
- Nader Tanideh
- Stem cells Technology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran.,Department of Pharmacology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Soheil Ashkani-Esfahani
- Department of Orthopaedic Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA. .,Foot and Ankle Research and Innovation Laboratory, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA.
| | - Farid Sadeghi
- Student Research Committee, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Omid Koohi-Hosseinabadi
- Stem cells Technology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran.,Central Research Laboratory, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Cambyz Irajie
- Department of Medical Biotechnology, School of Advanced Medical Sciences and Technologies, Shiraz University of Medical Sciences, Shiraz, Iran.
| | - Aida Iraji
- Central Research Laboratory, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Bart Lubberts
- Department of Orthopaedic Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA.,Foot and Ankle Research and Innovation Laboratory, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Soleiman Mohammadi Samani
- Center of Nanotechnology in Drug Delivery, Faculty of Pharmacy, Shiraz University of Medical Sciences, Shiraz, Iran
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20
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Qing P, Liu Y. Inhibitory role of long non-coding RNA OIP5-AS1 in rheumatoid arthritis progression through the microRNA-448-paraoxonase 1-toll-like receptor 3-nuclear factor κB axis. Exp Physiol 2020; 105:1708-1719. [PMID: 32770578 DOI: 10.1113/ep088608] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2020] [Accepted: 07/28/2020] [Indexed: 02/05/2023]
Abstract
NEW FINDINGS What is the central question of this study? What are the functions of long non-coding (lnc) RNA OIP5-AS1 in development of rheumatoid arthritis inflammation and what is the molecular mechanism? What is the main finding and its importance? LncRNA OIP5-AS1 mitigates rheumatoid arthritis progression through the competitive endogenous RNA network involving the miR-448-paraoxonase 1 axis and through the inactivation of the toll-like receptor 3-nuclear factor κB signalling pathway. This study may offer new ideas for molecularly based control of rheumatoid arthritis. ABSTRACT Rheumatoid arthritis (RA) is an autoimmune disorder with dysregulation of long non-coding RNAs (lncRNAs) possibly involved. This study aimed to inquire into the roles of lncRNA OIP5-AS1 in RA progression. A rat model of RA was induced. Overexpression of OIP5-AS1 was introduced in the model rats, and the changes in paw swelling, RA severity and the inflammatory factors interleukin (IL)-1β, IL-10, IL-6 and tumour necrosis factor α were measured. Fibroblast-like synoviocytes (FLSs) from RA patients were collected for in vitro experiments. A gain- and loss-of function study of OIP5-AS1, miR-448 and paraoxonase 1 (PON1) was performed to explore their roles in RA-FLS growth, apoptosis and inflammation. A toll-like receptor 3 (TLR3)-specific agonist, polyinosine-polycytidylic acid, or a nuclear factor κB (NF-κB)-specific antagonist, QNZ, was administrated in RA-FLSs. Consequently, overexpression of OIP5-AS1 reduced the symptom severity and the levels of inflammatory factors in RA rats. OIP5-AS1 could bind to miR-448 to up-regulate PON1 expression. Further overexpression of miR-448 reversed the effects of OIP5-AS1, while overexpression of PON1 inhibited RA-FLS growth and inflammation. In addition, TLR3 activation promoted RA progression. To conclude, this study evidenced that lncRNA OIP5-AS1 may mitigate RA progression through the miR-448-PON1 axis and through the inactivation of the TLR3-NF-κB signalling pathway.
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Affiliation(s)
- Pingying Qing
- Department of Rheumatology and Immunology, West China Hospital of Sichuan University, Chengdu, Sichuan, 610041, P.R. China
| | - Yi Liu
- Department of Rheumatology and Immunology, West China Hospital of Sichuan University, Chengdu, Sichuan, 610041, P.R. China
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21
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A synbiotic consisting of Lactobacillus plantarum S58 and hull-less barley β-glucan ameliorates lipid accumulation in mice fed with a high-fat diet by activating AMPK signaling and modulating the gut microbiota. Carbohydr Polym 2020; 243:116398. [DOI: 10.1016/j.carbpol.2020.116398] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2020] [Revised: 04/19/2020] [Accepted: 04/28/2020] [Indexed: 02/08/2023]
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22
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Wang Y, Li H, Shi Y, Wang S, Xu Y, Li H, Liu D. miR-143-3p impacts on pulmonary inflammatory factors and cell apoptosis in mice with mycoplasmal pneumonia by regulating TLR4/MyD88/NF-κB pathway. Biosci Rep 2020; 40:BSR20193419. [PMID: 32597476 PMCID: PMC7340866 DOI: 10.1042/bsr20193419] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2019] [Revised: 05/20/2020] [Accepted: 06/08/2020] [Indexed: 01/16/2023] Open
Abstract
miR-143-3p is correlated with inflammatory pain responses, such as hsa-miR-143-3p expression reduction in fibromyalgia. The present study aimed to explore the effects of miR-143-3p and Toll-like receptor (TLR) 4/myeloid differentiation factor 88 (MyD88)/NF-κB signaling pathway on pulmonary inflammatory factors levels and alveolar epithelial cell apoptosis in mycoplasmal pneumonia mice. Twenty mice were selected as normal group. The 120 successfully modeled Mycoplasma pneumoniae (MP) infection mice were randomly divided into model group (without any treatment), negative control (NC) group (injected with NC mimic), miR-143-3p mimic group (injected with miR-143-3p mimic), miR-143-3p inhibitor group (injected with miR-143-3p inhibitor), TAK-242 group (treatment with TAK-242), and miR-143-3p inhibitor + TAK-242 group (treatment with miR-143-3p inhibitor + TAK-242). Compared with model group, model mice had up-regulated miR-143-3p expression and decreased MyD88 and p-NF-κB p50 protein expressions (all P<0.05); Model mice treated with miR-143-3p mimic and TAK-242 had reduced interleukin (IL)-2 and tumor necrosis factor (TNF)-α contents and protein expressions of MyD88, p-NF-κB p50, increased IL-10 content, fewer alveolar epithelial cell apoptosis, lower Bax expression and higher Bcl-2 expression (all P<0.05); however, mice with miR-143-3p inhibitor treatment showed opposite trends in terms of above indicators. The exacerbation of mycoplasmal pneumonia caused by miR-143-3p inhibitor was partly improved by miR-143-3p inhibitor + TAK-242 combination treatment (all P<0.05). Therefore, up-regulation of miR-143-3p expression may ameliorate pulmonary inflammatory factors levels and reduce alveolar epithelial cell apoptosis in mycoplasmal pneumonia mice by inhibiting TLR4/MyD88/NF-κB signaling pathway.
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Affiliation(s)
- Yongjun Wang
- Department of Pediatric Respiratory Medicine, Gansu Provincial Maternity and Child-Care Hospital, Lanzhou, Gansu Province, China
| | - Huan Li
- Department of Rehabilitation, Gansu Province Hospital Rehabilitation Center, Lanzhou, Gansu Province, China
| | - Yongsheng Shi
- Department of Pediatric Respiratory Medicine, Gansu Provincial Maternity and Child-Care Hospital, Lanzhou, Gansu Province, China
| | - Shuying Wang
- Department of Pediatric Respiratory Medicine, Gansu Provincial Maternity and Child-Care Hospital, Lanzhou, Gansu Province, China
| | - Yan Xu
- Department of Pediatric Respiratory Medicine, Gansu Provincial Maternity and Child-Care Hospital, Lanzhou, Gansu Province, China
| | - Hanyi Li
- Department of Pediatric Respiratory Medicine, Gansu Provincial Maternity and Child-Care Hospital, Lanzhou, Gansu Province, China
| | - Donghai Liu
- Department of Pediatric Respiratory Medicine, Gansu Provincial Maternity and Child-Care Hospital, Lanzhou, Gansu Province, China
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Caracci F, Harary J, Simkovic S, Pasinetti GM. Grape-Derived Polyphenols Ameliorate Stress-Induced Depression by Regulating Synaptic Plasticity. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2020; 68:1808-1815. [PMID: 31532659 DOI: 10.1021/acs.jafc.9b01970] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Major depressive disorder (MDD) is associated with stress-induced immune dysregulation and reduced brain-derived neurotrophic factor (BDNF) levels in sensitive brain regions associated with depression. Elevated levels of proinflammatory cytokines and reduced BDNF levels lead to impaired synaptic plasticity mechanisms that contribute to the pathophysiology of MDD. There is accumulating evidence that the administration of polyphenols at doses ranging from 5 to 180 mg/kg of body weight can normalize elevated levels of proinflammatory cytokines and abnormal levels of BDNF and, thus, restore impaired synaptic plasticity mechanisms that mediate depressive behavior in animal models of stress. This review will focus on the mechanisms by which grape-derived polyphenols normalize impaired synaptic plasticity and reduce depressive behavior in animal models of stress.
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Affiliation(s)
- Francesca Caracci
- Department of Neurology , Icahn School of Medicine at Mount Sinai , 1 Gustave L. Levy Place , Box 1137, New York , New York 10029 , United States
| | - Joyce Harary
- Department of Neurology , Icahn School of Medicine at Mount Sinai , 1 Gustave L. Levy Place , Box 1137, New York , New York 10029 , United States
| | - Sherry Simkovic
- Department of Neurology , Icahn School of Medicine at Mount Sinai , 1 Gustave L. Levy Place , Box 1137, New York , New York 10029 , United States
| | - Giulio Maria Pasinetti
- Department of Neurology , Icahn School of Medicine at Mount Sinai , 1 Gustave L. Levy Place , Box 1137, New York , New York 10029 , United States
- Geriatrics Research, Education and Clinical Center , JJ Peters VA Medical Center , Bronx , New York 10468 , United States
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24
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Li BX, Li WY, Tian YB, Guo SX, Huang YM, Xu DN, Cao N. Polysaccharide ofAtractylodes macrocephalaKoidz Enhances Cytokine Secretion by Stimulating theTLR4–MyD88–NF-κBSignaling Pathway in the Mouse Spleen. J Med Food 2019; 22:937-943. [DOI: 10.1089/jmf.2018.4393] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Affiliation(s)
- Bing-Xin Li
- Zhongkai University of Agriculture and Engineering, Guangzhou, China
- Guangdong Province Key Laboratory of Waterfowl Healthy Breeding, Guangzhou, China
- South China Agricultural University, Guangzhou, China
| | - Wan-Yan Li
- Zhongkai University of Agriculture and Engineering, Guangzhou, China
- Guangdong Province Key Laboratory of Waterfowl Healthy Breeding, Guangzhou, China
| | - Yun-Bo Tian
- Zhongkai University of Agriculture and Engineering, Guangzhou, China
- Guangdong Province Key Laboratory of Waterfowl Healthy Breeding, Guangzhou, China
| | - Si-Xuan Guo
- Zhongkai University of Agriculture and Engineering, Guangzhou, China
- Guangdong Province Key Laboratory of Waterfowl Healthy Breeding, Guangzhou, China
| | - Yun-Mao Huang
- Zhongkai University of Agriculture and Engineering, Guangzhou, China
- Guangdong Province Key Laboratory of Waterfowl Healthy Breeding, Guangzhou, China
| | - Dan-Ning Xu
- Zhongkai University of Agriculture and Engineering, Guangzhou, China
- Guangdong Province Key Laboratory of Waterfowl Healthy Breeding, Guangzhou, China
| | - Nan Cao
- Zhongkai University of Agriculture and Engineering, Guangzhou, China
- Guangdong Province Key Laboratory of Waterfowl Healthy Breeding, Guangzhou, China
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25
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Lei J, Fu Y, Zhuang Y, Zhang K, Lu D. miR-382-3p suppressed IL-1β induced inflammatory response of chondrocytes via the TLR4/MyD88/NF-κB signaling pathway by directly targeting CX43. J Cell Physiol 2019; 234:23160-23168. [PMID: 31144313 DOI: 10.1002/jcp.28882] [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: 01/27/2019] [Revised: 05/08/2019] [Accepted: 05/09/2019] [Indexed: 12/18/2022]
Abstract
miR-382-3p has been reported to be upregulated in synovial membrane in knee osteoarthritis (OA). Nevertheless, its role in OA remains largely unknown. The aim of this study was to investigate the specific function and mechanisms of miR-382-3p in the course of OA. In this study, human OA chondrocytes were pretreated with interleukin-1β (IL-1β) at 5 ng/ml for 12 hr to stimulate inflammatory response and matrix metalloproteinases (MMPs) expression in chondrocytes. Meanwhile, miR-382-3p was downregulated in IL-1β-stimulated chondrocytes. In addition, we found that miR-382-3p directly interacts with connexin 43 (CX43) and attenuates the increase of cytochrome c oxidase polypeptide II, inducible nitric oxide synthase, and MMP-1/13 that is induced by IL-1β. Furthermore, our observations indicated that miR-382-3p inhibited the expression of Toll-like receptor 4 (TLR4), Myeloid differentiation primary response 88 (MyD88) and nuclear factor κB (NF-κB) in IL-1β-stimulated chondrocytes, while CX43 overexpression could partly reverse these decreases. In conclusion, miR-382-3p participated in OA may through the TLR4/MyD88/NF-κB signaling pathway by directly targeting CX43.
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Affiliation(s)
- Jinlai Lei
- Department of Orthopedic Trauma, Honghui Hospital, Xi'an Jiaotong University, Xi'an, Shaansi, China
| | - Yahui Fu
- Department of Orthopedic Trauma, Honghui Hospital, Xi'an Jiaotong University, Xi'an, Shaansi, China
| | - Yan Zhuang
- Department of Orthopedic Trauma, Honghui Hospital, Xi'an Jiaotong University, Xi'an, Shaansi, China
| | - Kun Zhang
- Department of Orthopedic Trauma, Honghui Hospital, Xi'an Jiaotong University, Xi'an, Shaansi, China
| | - Daigang Lu
- Department of Orthopedic Trauma, Honghui Hospital, Xi'an Jiaotong University, Xi'an, Shaansi, China
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26
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Li Y, Xu JZ, Gu CX, Liu GL, Tian K. Carvacrol suppresses inflammatory responses in rheumatoid arthritis fibroblast-like synoviocytes. J Cell Biochem 2019; 120:8169-8176. [PMID: 30485517 DOI: 10.1002/jcb.28098] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2018] [Accepted: 10/31/2018] [Indexed: 01/24/2023]
Abstract
BACKGROUND Fibroblast-like synoviocytes (FLSs) play an essential role in the chronic inflammatory process of rheumatoid arthritis (RA). Carvacrol is a natural monoterpenic phenol that retains significant anti-inflammatory activity. However, the effect of carvacrol on inflammatory response in RA-FLSs has not yet been reported. The present study aimed to investigate the role of carvacrol in lipopolysaccharides (LPS)-induced inflammatory response in human RA-FLSs. METHODS Cell viability and proliferation were measured by MTT and Cell Counting Kit-8 assays, respectively. The migration was detected by transwell assay. The production of inflammatory cytokines and matrix metalloproteinases (MMPs) were analyzed by enzyme-linked immunosorbent assay. The expressions of toll-like receptor 4 (TLR4), myeloid differentiation primary response 88 (MyD88), NF-κB, p38, p-p38, ERK1/2, p-ERK1/2, c-Jun N-terminal kinase (JNK), and p-JNK were detected by Western blot analysis. RESULTS Carvacrol-inhibited LPS-induced cell proliferation and migration of RA-FLSs. The production of inflammatory cytokines, including tumor necrosis factor alpha, interleukin (IL)- 6, and IL-8, was reduced by carvacrol in LPS-induced RA-FLSs. Meanwhile, the induction of MMPs, including MMP-1, MMP-3, and MMP-13, caused by LPS stimulation was inhibited by carvacrol in RA-FLSs. Furthermore, carvacrol prevented LPS-induced activation of the TLR4/MyD88/NF-κB, p38, and ERK1/2 pathways in RA-FLSs. CONCLUSIONS Carvacrol-mitigated LPS-induced cell proliferation, migration, and inflammation in RA-FLSs. The TLR4/MyD88/NF-κB, p38 and ERK1/2 pathways might be involved in the protective effect of carvacrol.
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Affiliation(s)
- Yu Li
- Department of Orthopaedics, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Jian-Zhong Xu
- Department of Orthopaedics, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Chen-Xi Gu
- Department of Orthopaedics, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Guan-Lei Liu
- Department of Orthopaedics, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Ke Tian
- Department of Orthopaedics, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
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27
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Han L, Li T, Du M, Chang R, Zhan B, Mao X. Beneficial Effects of Potentilla discolor Bunge Water Extract on Inflammatory Cytokines Release and Gut Microbiota in High-Fat Diet and Streptozotocin-Induced Type 2 Diabetic Mice. Nutrients 2019; 11:nu11030670. [PMID: 30897784 PMCID: PMC6470731 DOI: 10.3390/nu11030670] [Citation(s) in RCA: 53] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2019] [Revised: 03/16/2019] [Accepted: 03/18/2019] [Indexed: 02/06/2023] Open
Abstract
Potentilla discolor Bunge (PDB), a perennial herb, has been used as a traditional Chinese medicine in the therapy of many diseases. The aim of the current study was to investigate the effect of PDB water extract on systemic inflammation and gut microbiota in type 2 diabetic (T2D) mice induced by high-fat diet (HFD) and streptozotocin (STZ) injection. C57BL/6J mice were randomly divided into a normal diet (ND) group, T2D group, and PDB group (diabetic mice treated with PDB water extract at a dose of 400 mg/kg body weight). Results showed that PDB significantly decreased the levels of lipopolysaccharide (LPS) and pro-inflammatory cytokines in serum. Further investigation showed that PDB significantly reduced the ratio of Firmicutes/Bacteroidetes and the relative abundance of Proteobacteria in fecal samples of diabetic mice. In addition, PDB notably alleviated intestinal inflammation as evidenced by decreased expression of toll-like receptor 4 (TLR4), myeloid differentiation factor 88 (MyD88), nuclear factor-κB (NF-κB), and inflammatory cytokines. PDB also reversed the decreased expression of intestinal mucosal tight junction proteins including Claudin3, ZO-1, and Occludin. Meanwhile, the levels of fecal acetic acid and butyric acid and their specific receptors including G-protein-coupled receptor (GPR) 41 and 43 expression in the colon were also increased after PDB treatment. Our results indicated that PDB might serve as a potential functional ingredient against diabetes and related inflammation.
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Affiliation(s)
- Lihua Han
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Food Science & Nutritional Engineering, China Agricultural University, Beijing 100083, China.
- Key Laboratory of Functional Dairy, College of Food Science and Nutritional Engineering, Ministry of Education, China Agricultural University, Beijing 100083, China.
| | - Tiange Li
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Food Science & Nutritional Engineering, China Agricultural University, Beijing 100083, China.
- Key Laboratory of Functional Dairy, College of Food Science and Nutritional Engineering, Ministry of Education, China Agricultural University, Beijing 100083, China.
| | - Min Du
- Department of Animal Sciences, Washington State University, Pullman, WA 99164, USA.
| | - Rui Chang
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Food Science & Nutritional Engineering, China Agricultural University, Beijing 100083, China.
- Key Laboratory of Functional Dairy, College of Food Science and Nutritional Engineering, Ministry of Education, China Agricultural University, Beijing 100083, China.
| | - Biyuan Zhan
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Food Science & Nutritional Engineering, China Agricultural University, Beijing 100083, China.
- Key Laboratory of Functional Dairy, College of Food Science and Nutritional Engineering, Ministry of Education, China Agricultural University, Beijing 100083, China.
| | - Xueying Mao
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Food Science & Nutritional Engineering, China Agricultural University, Beijing 100083, China.
- Key Laboratory of Functional Dairy, College of Food Science and Nutritional Engineering, Ministry of Education, China Agricultural University, Beijing 100083, China.
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28
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Chen K, Sun Y, Diao Y, Ji L, Song D, Zhang T. α7 nicotinic acetylcholine receptor agonist inhibits the damage of rat hippocampal neurons by TLR4/Myd88/NF‑κB signaling pathway during cardiopulmonary bypass. Mol Med Rep 2017; 16:4770-4776. [PMID: 28791395 PMCID: PMC5647028 DOI: 10.3892/mmr.2017.7166] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2017] [Accepted: 07/27/2017] [Indexed: 01/27/2023] Open
Abstract
The present study aimed to investigate the effect of α7 nicotinic acetylcholine receptor (α7nAChR) agonist on the damage of hippocampal neurons and the expression of toll like receptor 4 (TLR4)/myeloid differentiation primary response 88 (Myd88)/nuclear factor (NF)‑κB signal pathway‑associated factors in cardiopulmonary bypass (CPB). Sprague Dawley rats were randomly divided into five groups: Sham operation (Sham); CPB; CPB + α7nAChR agonist PHA568487 (PHA); CPB + α7nAChR inhibitor MLA (MLA); and CPB + PHA568487 + TLR4 antagonist (CPT). Blood and brain tissue samples were harvested at 12 h following the withdrawal of CPB. Levels of serum inflammatory factors [interleukin (IL)‑1β, IL‑6 and tumor necrosis factor (TNF)‑α] and brain injury markers [S‑100β and neuron‑specific enolase (NSE)] were measured using ELISA. In addition, pathological histology and apoptosis changes were observed using hematoxylin and eosin staining, and Tunnel assays. Quantitative polymerase chain reaction and western blot assays were used to determine the expression of TLR4, Myd88 and NF‑κB mRNA, and protein in the hippocampus. The morphology of hippocampal pyramidal cells in the Sham group was observed to be normal. Pyramidal cells in the CPB, MLA and CPT groups were loosely arranged, and the baselines had disappeared, with clear nucleus pyknosis and neuronal apoptosis. Furthermore, the cells in the PHA group were slightly damaged. IL‑1β, IL‑6, TNF‑α, S‑100β and NSE expression levels in the CPB, MLA, and CPT groups were significantly higher compared with that in the Sham group (P<0.05). Compared with CPB group, the expression of inflammatory cytokines in the PHA group was significantly lower (P<0.05). The expression of TLR4, Myd88 and NF‑κB mRNA, and protein in the hippocampus of CPB, MLA and CPT groups were significantly higher compared with that in the Sham group, and the PHA group expression was significantly lower compared with the CPB group (P<0.05). α7nAChRs agonist can inhibit the apoptosis of rat brain neurons induced by CPB, and may protect against brain injury through the TLR4/Myd88/NF‑κB signaling pathway.
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Affiliation(s)
- Keyan Chen
- Department of Laboratory Animal Science, China Medical University, Shenyang, Liaoning 110122, P.R. China
| | - Yingjie Sun
- Department of Anesthesiology, General Hospital of Shenyang Military Area Command, Shenyang 110016, P.R. China
| | - Yugang Diao
- Department of Anesthesiology, General Hospital of Shenyang Military Area Command, Shenyang 110016, P.R. China
| | - Liu Ji
- Department of Anesthesiology, General Hospital of Shenyang Military Area Command, Shenyang 110016, P.R. China
| | - Dandan Song
- Department of Anesthesiology, General Hospital of Shenyang Military Area Command, Shenyang 110016, P.R. China
| | - Tiezheng Zhang
- Department of Anesthesiology, General Hospital of Shenyang Military Area Command, Shenyang 110016, P.R. China
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29
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Procyanidins Mitigate Osteoarthritis Pathogenesis by, at Least in Part, Suppressing Vascular Endothelial Growth Factor Signaling. Int J Mol Sci 2016; 17:ijms17122065. [PMID: 27941690 PMCID: PMC5187865 DOI: 10.3390/ijms17122065] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2016] [Revised: 11/29/2016] [Accepted: 12/01/2016] [Indexed: 12/15/2022] Open
Abstract
Procyanidins are a family of plant metabolites that have been suggested to mitigate osteoarthritis pathogenesis in mice. However, the underlying mechanism is largely unknown. This study aimed to determine whether procyanidins mitigate traumatic injury-induced osteoarthritis (OA) disease progression, and whether procyanidins exert a chondroprotective effect by, at least in part, suppressing vascular endothelial growth factor signaling. Procyanidins (extracts from pine bark), orally administered to mice subjected to surgery for destabilization of the medial meniscus, significantly slowed OA disease progression. Real-time polymerase chain reaction revealed that procyanidin treatment reduced expression of vascular endothelial growth factor and effectors in OA pathogenesis that are regulated by vascular endothelial growth factor. Procyanidin-suppressed vascular endothelial growth factor expression was correlated with reduced phosphorylation of vascular endothelial growth factor receptor 2 in human OA primary chondrocytes. Moreover, components of procyanidins, procyanidin B2 and procyanidin B3 exerted effects similar to those of total procyanidins in mitigating the OA-related gene expression profile in the primary culture of human OA chondrocytes in the presence of vascular endothelial growth factor. Together, these findings suggest procyanidins mitigate OA pathogenesis, which is mediated, at least in part, by suppressing vascular endothelial growth factor signaling.
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