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Osthole Antagonizes Microglial Activation in an NRF2-Dependent Manner. Molecules 2023; 28:molecules28020507. [PMID: 36677566 PMCID: PMC9912252 DOI: 10.3390/molecules28020507] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Revised: 12/27/2022] [Accepted: 12/28/2022] [Indexed: 01/06/2023] Open
Abstract
Microglia are neuroglia in the brain with an innate immune function and participate in the progress of neurodegenerative diseases. Osthole (OST) is a coumarin derivative extracted from Cnidium monnieri and bears a microglia-antagonizing ability. However, the underlying mechanism of the antagonism is not clear. The lipopolysaccharides-induced microglial BV2 cell line and amyloid-overexpressing fruit fly were used as models to study OST treatment. We found that OST treatment is sufficient to evoke NRF2 cascade under an LPS-induced inflammatory environment, and silencing NRF2 is sufficient to abolish the process. Moreover, we found that OST is sufficient to antagonize microglial activation in both LPS-induced BV2 cells and Aβ-overexpressing fruit flies, and silencing NRF2 abolishes OST's antagonism. Furthermore, OST treatment rescued survival, climbing, and the learning ability of Aβ-overexpressing fruit flies and relieved oxidative stress. In conclusion, we proved that OST antagonizes microglial activation induced by either LPS or Aβ and that NRF2 is necessary for OST's antagonism.
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2
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Yin Y, Yang J, Pan Y, Gao Y, Huang L, Luan X, Lin Z, Zhu W, Li Y, Song Y. Mesopore to Macropore Transformation of Metal-Organic Framework for Drug Delivery in Inflammatory Bowel Disease. Adv Healthc Mater 2021; 10:e2000973. [PMID: 33369176 DOI: 10.1002/adhm.202000973] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Revised: 12/16/2020] [Indexed: 02/06/2023]
Abstract
Inflammatory bowel disease (IBD) is a chronic relapsing autoimmune disease that is characterized by segmental intestinal inflammation. There is an urgent need for more efficient inflammation-targeting strategies to improve therapeutic effect and reduce systemic drug exposure. Herein, an oxidation-responsive metal-organic framework material (Ce-MOF@PSS) is reported that preferentially adheres to inflamed intestine via enema. The overproduced reactive oxygen species (ROS) at inflammatory sites induces transformation of Ce-MOF@PSS from mesopore to macropore with local drug release. In experimental colitis, the Ce-MOF@PSS delivery system exhibits excellent inflammation-targeting efficacy and superior therapeutic effect over free drug on suppressing inflammation and repairing intestinal barrier function. Accordingly, by targeting intestinal inflammation, increasing local drug concentrations, scavenging ROS, reducing systemic exposure, and exhibiting excellent safety profiles, it is considered that the Ce-MOF drug delivery platform can be intensively developed as a translational nanomedicine for the management of IBD and other inflammatory diseases.
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Affiliation(s)
- Yi Yin
- Department of General Surgery Jinling Hospital Medical School of Nanjing University Nanjing 210093 China
| | - Jingjing Yang
- College of Engineering and Applied Sciences State Key Laboratory of Analytical Chemistry for Life Science Nanjing University Nanjing 210093 China
| | - Yongchun Pan
- College of Engineering and Applied Sciences State Key Laboratory of Analytical Chemistry for Life Science Nanjing University Nanjing 210093 China
| | - Yanfeng Gao
- College of Engineering and Applied Sciences State Key Laboratory of Analytical Chemistry for Life Science Nanjing University Nanjing 210093 China
| | - Liangyu Huang
- Department of General Surgery Jinling Hospital Medical School of Nanjing University Nanjing 210093 China
| | - Xiaowei Luan
- College of Engineering and Applied Sciences State Key Laboratory of Analytical Chemistry for Life Science Nanjing University Nanjing 210093 China
| | - Zhengfan Lin
- State Key Laboratory for Mineral Deposits Research School of Earth Sciences and Engineering Nanjing University Nanjing 210093 China
| | - Weiming Zhu
- Department of General Surgery Jinling Hospital Medical School of Nanjing University Nanjing 210093 China
| | - Yi Li
- Department of General Surgery Jinling Hospital Medical School of Nanjing University Nanjing 210093 China
| | - Yujun Song
- College of Engineering and Applied Sciences State Key Laboratory of Analytical Chemistry for Life Science Nanjing University Nanjing 210093 China
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3
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Li LX, Yin LH, Gao M, Xu LN, Qi Y, Peng JY. MiR-23a-5p exacerbates intestinal ischemia-reperfusion injury by promoting oxidative stress via targeting PPAR alpha. Biochem Pharmacol 2020; 180:114194. [PMID: 32800851 DOI: 10.1016/j.bcp.2020.114194] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Revised: 07/21/2020] [Accepted: 08/10/2020] [Indexed: 01/01/2023]
Abstract
MiR-23a-5p is involved in the occurrence and development of some serious diseases, but its effects on intestinal ischemia-reperfusion (II/R) injury is unclear. In this research, the hypoxia/reoxygenation (H/R) model on IEC-6 cells and II/R model in mice were used. The data showed that the ROS level in model group was significantly increased compared with control group. The level of intestinal MPO was increased and serum SOD was decreased in mice compared with sham group. Moreover, the expression levels of miR-23a-5p in model groups were obviously increased in vitro and in vivo, while the expression levels of PPARα, FOXO3α, PGC-1α, Nrf2, CAT, NQO1, HO-1 and SOD2 were significantly decreased. The double luciferase reporter gene assay showed that there was binding site between miR-23a-5p and PPARα. When miR-23a-5p was inhibited or PPARα gene was overexpressed, H/R-caused cell damage was alleviated and ROS level was decreased compared with NC group. PPARα expression level was increased, accompanied by the increased levels of FOXO3α, PGC-1α, Nrf2, CAT, NQO1, HO-1 and SOD2. After enhancing miR-23a-5p expression or silencing PPARα gene, H/R-caused cell damage was further aggravated compared with NC group, and ROS level was increased associated with the decreased levels of FOXO3α, PGC-1α, Nrf2, CAT, NQO1, HO-1 and SOD2. Our study demonstrated that miR-23a-5p exacerbated II/R injury by promoting oxidative stress via targeting PPARα, which should be considered as one new drug target to treat II/R injury.
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Affiliation(s)
- L X Li
- Department of Pharmaceutical Analysis, Dalian Medical University, Western 9 Lvshunnan Road, Dalian 116044, China
| | - L-H Yin
- Department of Pharmaceutical Analysis, Dalian Medical University, Western 9 Lvshunnan Road, Dalian 116044, China
| | - M Gao
- Department of Pharmaceutical Analysis, Dalian Medical University, Western 9 Lvshunnan Road, Dalian 116044, China
| | - L-N Xu
- Department of Pharmaceutical Analysis, Dalian Medical University, Western 9 Lvshunnan Road, Dalian 116044, China
| | - Y Qi
- Department of Pharmaceutical Analysis, Dalian Medical University, Western 9 Lvshunnan Road, Dalian 116044, China
| | - J-Y Peng
- Department of Pharmaceutical Analysis, Dalian Medical University, Western 9 Lvshunnan Road, Dalian 116044, China; Key Laboratory for Basic and Applied Research on Pharmacodynamic Substances of Traditional Chinese Medicine of Liaoning Province, Dalian Medical University, Dalian, China; National-Local Joint Engineering Research Center for Drug Development (R&D) of Neurodegenerative Diseases, Dalian Medical University, Dalian, China.
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Zuo L, Ge S, Ge Y, Li J, Zhu B, Zhang Z, Jiang C, Li J, Wang S, Liu M, Li S, Wu R, Hu J. The Adipokine Metrnl Ameliorates Chronic Colitis in Il-10-/- Mice by Attenuating Mesenteric Adipose Tissue Lesions During Spontaneous Colitis. J Crohns Colitis 2019; 13:931-941. [PMID: 30615095 DOI: 10.1093/ecco-jcc/jjz001] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
BACKGROUND Crosstalk between mesenteric adipose tissue [MAT] and the intestines affects the progression of Crohn's disease [CD]. The adipokine metrnl regulates adipocyte function and has anti-inflammatory activity. We aimed to explore metrnl expression in CD MAT, investigate the influence of metrnl on the experimental colitis disease course and determine the mechanism underlying this effect. METHODS Metrnl expression in MAT specimens obtained from patients with and without CD was tested by immunohistochemistry. Male Il-10-/- mice with spontaneous enteritis were divided into positive control and metrnl-treated [Metrnl-Fc, 10 mg/kg/d, intraperitoneally, 8 weeks] groups. Age-matched male wild-type [WT] mice were used as negative controls. The effects of metrnl on enteritis and mesenteric lesions and the potential controlling mechanisms were evaluated. RESULTS Metrnl expression was higher in human CD MAT than in control MAT. Systemic delivery of metrnl significantly ameliorated chronic colitis in Il-10-/- mice, as demonstrated by decreases in the disease activity index, inflammatory score and proinflammatory mediators. The protective effects of metrnl on MAT included reduced mesenteric hypertrophy, increased adipocyte size, improved adipocyte intrinsic function and ameliorated inflammation. Metrnl treatment activated STAT5/PPAR-γ signaling and promoted adipocyte differentiation in the MAT. CONCLUSIONS Metrnl expression was increased in the MAT of CD patients. Metrnl administration attenuated mesenteric lesions by promoting adipocyte function and differentiation partly through STAT5/PPAR-γ signaling pathway activation, thereby ameliorating CD-like colitis in mice.
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Affiliation(s)
- Lugen Zuo
- Department of Gastrointestinal Surgery, First Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui.,Anhui Key Laboratory of Tissue Transplantation, Bengbu Medical College, Bengbu, Anhui
| | - Sitang Ge
- Department of Gastrointestinal Surgery, First Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui.,Anhui Key Laboratory of Tissue Transplantation, Bengbu Medical College, Bengbu, Anhui
| | - Yuanyuan Ge
- Department of Colorectal Surgery, The Third Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing
| | - Jingjing Li
- Department of Pharmacy, First Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui
| | - Bing Zhu
- Department of Gastrointestinal Surgery, First Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui
| | - Zongbing Zhang
- Department of Gastrointestinal Surgery, First Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui
| | - Congqiao Jiang
- Department of Gastrointestinal Surgery, First Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui
| | - Jing Li
- Anhui Key Laboratory of Tissue Transplantation, Bengbu Medical College, Bengbu, Anhui.,Department of Clinical Laboratory, First Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui
| | - Suanhu Wang
- Department of Gastrointestinal Surgery, First Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui
| | - Mulin Liu
- Department of Gastrointestinal Surgery, First Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui
| | - Shiqing Li
- Department of Gastrointestinal Surgery, First Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui
| | - Rong Wu
- Department of General Surgery, Zhongda Hospital, Southeast University, Nanjing, China
| | - Jianguo Hu
- Anhui Key Laboratory of Tissue Transplantation, Bengbu Medical College, Bengbu, Anhui.,Department of Clinical Laboratory, First Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui
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5
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Zuo L, Li J, Ge S, Ge Y, Shen M, Wang Y, Zhou C, Wu R, Hu J. Bryostatin-1 ameliorated experimental colitis in Il-10 -/- Mice by protecting the intestinal barrier and limiting immune dysfunction. J Cell Mol Med 2019; 23:5588-5599. [PMID: 31251471 PMCID: PMC6652299 DOI: 10.1111/jcmm.14457] [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: 02/06/2019] [Revised: 04/30/2019] [Accepted: 05/03/2019] [Indexed: 12/13/2022] Open
Abstract
Bryostatin‐1 (Bry‐1) has been proven to be effective and safe in clinical trials of a variety of immune‐related diseases. However, little is known about its effect on Crohn's disease (CD). We aimed to investigate the impact of Bry‐1 on CD‐like colitis and determine the mechanism underlying this effect. In the present study, 15‐week‐old male Il‐10−/− mice with spontaneous colitis were divided into positive control and Bry‐1‐treated (Bry‐1, 30 μg/kg every other day, injected intraperitoneally for 4 weeks) groups. Age‐matched, male wild‐type (WT) mice were used as a negative control. The effects of Bry‐1 on colitis, intestinal barrier function and T cell responses as well as the potential regulatory mechanisms were evaluated. We found that the systemic delivery of Bry‐1 significantly ameliorated colitis in Il‐10−/− mice, as demonstrated by decreases in the disease activity index (DAI), inflammatory score and proinflammatory mediator levels. The protective effects of Bry‐1 on CD‐like colitis included the maintenance of intestinal barrier integrity and the helper T cell (Th)/regulatory T cell (Treg) balance. These effects of Bry‐1 may act in part through nuclear factor erythroid 2‐related factor 2 (Nrf2) signalling activation and STAT3/4 signalling inhibition. The protective effect of Bry‐1 on CD‐like colitis suggests Bry‐1 has therapeutic potential in human CD, particularly given the established clinical safety of Bry‐1.
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Affiliation(s)
- Lugen Zuo
- Department of Gastrointestinal Surgery, First Affiliated Hospital of Bengbu Medical College, Bengbu, China.,Anhui Key Laboratory of Tissue Transplantation, Bengbu Medical College, Bengbu, China
| | - Jing Li
- Anhui Key Laboratory of Tissue Transplantation, Bengbu Medical College, Bengbu, China.,Department of Clinical Laboratory, First Affiliated Hospital of Bengbu Medical College, Bengbu, China
| | - Sitang Ge
- Department of Gastrointestinal Surgery, First Affiliated Hospital of Bengbu Medical College, Bengbu, China.,Anhui Key Laboratory of Tissue Transplantation, Bengbu Medical College, Bengbu, China
| | - Yuanyuan Ge
- Department of Colorectal Surgery, The Third Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China
| | - Mengdi Shen
- Anhui Key Laboratory of Tissue Transplantation, Bengbu Medical College, Bengbu, China.,Department of Clinical medicine, Bengbu medical college, Bengbu, China
| | - Yan Wang
- Anhui Key Laboratory of Tissue Transplantation, Bengbu Medical College, Bengbu, China.,Department of Clinical medicine, Bengbu medical college, Bengbu, China
| | - Changmin Zhou
- Anhui Key Laboratory of Tissue Transplantation, Bengbu Medical College, Bengbu, China.,Department of Clinical medicine, Bengbu medical college, Bengbu, China
| | - Rong Wu
- Department of General Surgery, Zhongda Hospital, Southeast University, Nanjing, China
| | - Jianguo Hu
- Anhui Key Laboratory of Tissue Transplantation, Bengbu Medical College, Bengbu, China.,Department of Clinical Laboratory, First Affiliated Hospital of Bengbu Medical College, Bengbu, China
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Turan I, Sayan Ozacmak H, Ozacmak VH, Barut F, Ozacmak ID. The effects of S-nitrosoglutathione on intestinal ischemia reperfusion injury and acute lung injury in rats: Roles of oxidative stress and NF-κB. Tissue Cell 2018; 52:35-41. [PMID: 29857826 DOI: 10.1016/j.tice.2018.03.012] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2017] [Revised: 03/16/2018] [Accepted: 03/24/2018] [Indexed: 12/13/2022]
Abstract
BACKGROUND Intestinal ischemia and reperfusion (I/R) induces oxidative stress, inflammatory response, and acute lung injury. S-nitrosoglutathione (GSNO), a nitric oxide donor, has been documented to have protective effects on experimental ischemia models. AIM The aim of this study was to examine the effect of GSNO on I/R-induced intestine and lung damage and detect the potential mechanisms emphasizing the protective role of GSNO. METHODS Intestinal I/R was induced by occluding the superior mesenteric artery for 30 min followed by reperfusion for 180 min. GSNO was administered intravenously before reperfusion period (0.25 mg/kg). The levels of lipid peroxidation, reduced glutathione, and myeloperoxidase (MPO), histopathological evaluation and immunohistochemical expressions of both nuclear factor KappaB (NF-κB) and inducible nitric oxide (iNOS) in intestine and lung tissues were assessed. RESULTS Histolopathologic evaluation demonstrated that intestinal I/R induced severe damages in the intestine and the lung tissues. Histopathological scores decreased with GSNO treatment. GSNO treatment reduced lipid peroxidation and MPO levels and inhibited expression of NF-κB and iNOS in the intestine. CONCLUSION Our results suggest that GSNO treatment may ameliorate the intestinal and lung injury in rats, at least in part, by inhibiting inflammatory response and oxidative stress.
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Affiliation(s)
- Inci Turan
- Department of Physiology, Bulent Ecevit University Faculty of Medicine, Turkey.
| | - Hale Sayan Ozacmak
- Department of Physiology, Bulent Ecevit University Faculty of Medicine, Turkey
| | - V Haktan Ozacmak
- Department of Physiology, Bulent Ecevit University Faculty of Medicine, Turkey
| | - Figen Barut
- Department of Pathology, Bulent Ecevit University Faculty of Medicine, Turkey
| | - I Diler Ozacmak
- Or-Ahayim Private Balat Hospital, Department of General surgery, Bulent Ecevit University Faculty of Medicine, Turkey
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7
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Connell BJ, Saleh MC, Rajagopal D, Saleh TM. UPEI-400, a conjugate of lipoic acid and scopoletin, mediates neuroprotection in a rat model of ischemia/reperfusion. Food Chem Toxicol 2017; 100:175-182. [DOI: 10.1016/j.fct.2016.12.026] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2016] [Revised: 11/29/2016] [Accepted: 12/20/2016] [Indexed: 12/19/2022]
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Abstract
BACKGROUND Abnormalities in mesenteric adipose tissue (MAT) have long been recognized; however, the functional changes in the mesenteric adipocytes as well as the underlying mechanisms are not entirely clear. The aim of this study was to analyze the function and morphology of the MAT in patients with Crohn's disease (CD) and the underlying mechanism. METHODS The MAT specimens were obtained from areas adjacent to the intestinal wall in patients with CD (n = 33) and without CD (control, n = 23) who underwent intestinal resection. For patients with CD, paired samples were obtained from the macroscopically hypertrophic mesenteric adipose tissue (htMAT), adjacent to the involved ileum, and the macroscopically normal mesenteric adipose tissue (nMAT), contiguous with the healthy segment of the ileum. Morphological and molecular techniques were used to detect the characteristics of the MAT of CD and compare them with the characteristics of the control tissues. Hypoxia was confirmed by a high expression of hypoxia-inducible factor 1α. RESULTS The function and morphology of the nMAT in patients with CD were similar to those of the control tissues. htMAT of CD was dysfunctional based on the evidence that htMAT exhibited decreased lipid store, fatty acid synthase, and adipose triglyceride lipase, but increased levels of glucose transporter 1, aldolase C, and lactate when compared with those from nMAT and control tissues (P < 0.01). In addition, the structure of htMAT was found to be disorganized and characterized by higher levels of collagen content, interleukin 1β, interleukin 6, tumor necrosis factor α, and MCP-1 when compared with nMAT and control tissues (P < 0.01). htMAT was in a hypoxic condition, based on the findings that htMAT had a higher level of hypoxia-inducible factor 1α and a decreased number of vessels per adipocyte compared with those of nMAT and the control tissues (P < 0.01). The transforming growth factor β/Smad and nuclear factor-kappa B signaling pathways were found to be activated in htMAT, which may be associated with hypoxia. CONCLUSIONS The disorganized structure and dysfunction of mesenteric adipocyte tissue in CD was confirmed, and these alterations may be associated with hypoxia. It is possible that amelioration of mesenteric adipocyte hypoxia may help attenuate CD with underlying MAT inflammation.
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Tsai YF, Yu HP, Chung PJ, Leu YL, Kuo LM, Chen CY, Hwang TL. Osthol attenuates neutrophilic oxidative stress and hemorrhagic shock-induced lung injury via inhibition of phosphodiesterase 4. Free Radic Biol Med 2015; 89:387-400. [PMID: 26432981 DOI: 10.1016/j.freeradbiomed.2015.08.008] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/23/2015] [Revised: 08/07/2015] [Accepted: 08/10/2015] [Indexed: 10/23/2022]
Abstract
Oxidative stress caused by neutrophils is an important pathogenic factor in trauma/hemorrhagic (T/H)-induced acute lung injury (ALI). Osthol, a natural coumarin found in traditional medicinal plants, has therapeutic potential in various diseases. However, the pharmacological effects of osthol in human neutrophils and its molecular mechanism of action remain elusive. In this study, our data showed that osthol potently inhibited the production of superoxide anion (O2(•-)) and reactive oxidants derived therefrom as well as expression of CD11b in N-formylmethionylleucylphenylalanine (FMLP)-activated human neutrophils. However, osthol inhibited neutrophil degranulation only slightly and it failed to inhibit the activity of subcellular NADPH oxidase. FMLP-induced phosphorylation of extracellular signal-regulated kinase (ERK) and protein kinase B (Akt) was inhibited by osthol. Notably, osthol increased the cAMP concentration and protein kinase A (PKA) activity in activated neutrophils. PKA inhibitors reversed the inhibitory effects of osthol, suggesting that these are mediated through cAMP/PKA-dependent inhibition of ERK and Akt activation. Furthermore, the activity of cAMP-specific phosphodiesterase (PDE) 4, but not PDE3 or PDE7, was significantly reduced by osthol. In addition, osthol reduced myeloperoxidase activity and pulmonary edema in rats subjected to T/H shock. In conclusion, our data suggest that osthol has effective anti-inflammatory activity in human neutrophils through the suppression of PDE4 and protects significantly against T/H shock-induced ALI in rats. Osthol may have potential for future clinical application as a novel adjunct therapy to treat lung inflammation caused by adverse circulatory conditions.
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Affiliation(s)
- Yung-Fong Tsai
- Graduate Institute of Natural Products, School of Traditional Chinese Medicine, College of Medicine, Chang Gung University, Taoyuan 333, Taiwan; Graduate Institute of Clinical Medical Sciences, College of Medicine, Chang Gung University, Taoyuan 333, Taiwan; Department of Anesthesiology, Chang Gung Memorial Hospital, Taoyuan 333, Taiwan
| | - Huang-Ping Yu
- Graduate Institute of Clinical Medical Sciences, College of Medicine, Chang Gung University, Taoyuan 333, Taiwan; Department of Anesthesiology, Chang Gung Memorial Hospital, Taoyuan 333, Taiwan
| | - Pei-Jen Chung
- Graduate Institute of Natural Products, School of Traditional Chinese Medicine, College of Medicine, Chang Gung University, Taoyuan 333, Taiwan; Chinese Herbal Medicine Research Team, Healthy Aging Research Center, Chang Gung University, Taoyuan 333, Taiwan
| | - Yann-Lii Leu
- Graduate Institute of Natural Products, School of Traditional Chinese Medicine, College of Medicine, Chang Gung University, Taoyuan 333, Taiwan; Chinese Herbal Medicine Research Team, Healthy Aging Research Center, Chang Gung University, Taoyuan 333, Taiwan
| | - Liang-Mou Kuo
- Graduate Institute of Natural Products, School of Traditional Chinese Medicine, College of Medicine, Chang Gung University, Taoyuan 333, Taiwan; Graduate Institute of Clinical Medical Sciences, College of Medicine, Chang Gung University, Taoyuan 333, Taiwan; Department of General Surgery, Chang Gung Memorial Hospital, Chiayi 613, Taiwan
| | - Chun-Yu Chen
- Graduate Institute of Natural Products, School of Traditional Chinese Medicine, College of Medicine, Chang Gung University, Taoyuan 333, Taiwan; Graduate Institute of Clinical Medical Sciences, College of Medicine, Chang Gung University, Taoyuan 333, Taiwan; Department of Anesthesiology, Chang Gung Memorial Hospital, Taoyuan 333, Taiwan
| | - Tsong-Long Hwang
- Graduate Institute of Natural Products, School of Traditional Chinese Medicine, College of Medicine, Chang Gung University, Taoyuan 333, Taiwan; Chinese Herbal Medicine Research Team, Healthy Aging Research Center, Chang Gung University, Taoyuan 333, Taiwan; Department of Cosmetic Science and Research Center for Industry of Human Ecology, Chang Gung University of Science and Technology, Taoyuan 333, Taiwan.
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10
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Zuo L, Li Y, Wang H, Wu R, Zhu W, Zhang W, Cao L, Gu L, Gong J, Li N, Li J. Cigarette smoking is associated with intestinal barrier dysfunction in the small intestine but not in the large intestine of mice. J Crohns Colitis 2014; 8:1710-22. [PMID: 25205553 DOI: 10.1016/j.crohns.2014.08.008] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/23/2014] [Revised: 07/23/2014] [Accepted: 08/15/2014] [Indexed: 02/07/2023]
Abstract
AIMS To observe the effect of cigarette smoke (CS) on the small bowel and colon in mice and to attempt to explain the potential mechanisms that account for these effects. METHODS Male BALB/c mice age 6-8 weeks were randomly divided into a CS group and a control group (n=10 per group). CS mice were exposed to CS (five cigarettes each time, four times a day for 5 days a week using Hamburg II smoking machine and CS was diluted with air at a ratio of 1:6) for 10 weeks, and control mice were exposed to room air. After 10 weeks, mice were sacrificed for analysis (colon and small bowel). RESULTS CS exposure impaired the intestinal barrier of the small bowel, based on evidence that CS mice exhibited increased intestinal permeability, bacterial translocation, intestinal villi atrophy, damaged tight junctions and abnormal tight junction proteins. These changes were partly mediated through the activated NF-κB (p65) signalling pathway. However, no obvious changes associated with the intestinal barrier were identified in the small bowel of control mice or the colons of control or CS mice. CONCLUSIONS CS is associated with intestinal barrier dysfunction in the small intestine but not in the large intestine of mice.
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Affiliation(s)
- Lugen Zuo
- Department of General Surgery, Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - Yi Li
- Department of General Surgery, Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - Honggang Wang
- Department of General Surgery, Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - Rong Wu
- Department of General Surgery, Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - Weiming Zhu
- Department of General Surgery, Jinling Hospital, Medical School of Nanjing University, Nanjing, China.
| | - Wei Zhang
- Department of General Surgery, Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - Lei Cao
- Department of General Surgery, Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - Lili Gu
- Department of General Surgery, Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - Jianfeng Gong
- Department of General Surgery, Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - Ning Li
- Department of General Surgery, Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - Jieshou Li
- Department of General Surgery, Jinling Hospital, Medical School of Nanjing University, Nanjing, China
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11
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Gulati P, Singh N. Evolving possible link between PI3K and NO pathways in neuroprotective mechanism of ischemic postconditioning in mice. Mol Cell Biochem 2014; 397:255-65. [DOI: 10.1007/s11010-014-2193-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2014] [Accepted: 08/13/2014] [Indexed: 01/22/2023]
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12
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Farooq S, Shakeel-u-Rehman, Hussain A, Hamid A, Qurishi MA, Koul S. Click chemistry inspired synthesis and bioevaluation of novel triazolyl derivatives of osthol as potent cytotoxic agents. Eur J Med Chem 2014; 84:545-54. [PMID: 25062005 DOI: 10.1016/j.ejmech.2014.07.069] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2014] [Revised: 07/17/2014] [Accepted: 07/19/2014] [Indexed: 11/30/2022]
Abstract
A new series of diverse triazoles linked through the hydroxyl group of lactone ring opened osthol (1) were synthesized using click chemistry approach. All the derivatives were subjected to 3-(4,5-Dimethylthiazol-yl)-diphenyl tetrazoliumbromide (MTT) cytotoxicity screening against a panel of seven different human cancer cell lines viz. colon (colo-205), colon (HCT-116), breast (T47D), lung (NCI-H322), lung (A549), prostate (PC-3) and Skin (A-431) to check their cytotoxic potential. Interestingly, among the tested molecules, most of the analogs displayed better cytotoxic activity than the parent osthol (1). Of the synthesized triazoles, compounds 8 showed the best activity with IC50 of 1.3, 4.9, 3.6, 41.0, 35.2, 26.4 and 7.2 μM against colon (Colo-205 and HCT-116), breast (T47D), lung (NCI-H322 and A549), prostate (PC-3) and Skin (A-431) cancer lines respectively. Compound 8 induced potent apoptotic effects in Colo-205 cells. The population of apoptotic cells increased from 11.4% in case of negative control to 24.1% at 25 μM of 8. Compound 8 also induced a remarkable decrease in mitochondrial membrane potential (ΛΨm) leading to apoptosis of cancer cells used. The present study resulted in identification of broad spectrum cytotoxic activity of analogs bearing electron withdrawing substituents, besides the enhanced selective activity of analogs with electron donating moieties.
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Affiliation(s)
- Saleem Farooq
- Bioorganic Chemistry Division, CSIR-Indian Institute of Integrative Medicine, Canal Road, Jammu 180001, India.
| | - Shakeel-u-Rehman
- Bioorganic Chemistry Division, CSIR-Indian Institute of Integrative Medicine, Sanatnagar, Srinagar 190005, India
| | - Aashiq Hussain
- Cancer Pharmacology Division, CSIR-Indian Institute of Integrative Medicine, Canal Road, Jammu 180001, India
| | - Abid Hamid
- Cancer Pharmacology Division, CSIR-Indian Institute of Integrative Medicine, Canal Road, Jammu 180001, India
| | - Mushtaq A Qurishi
- Department of Chemistry, University of Kashmir, Srinagar 190006, India
| | - Surrinder Koul
- Bioorganic Chemistry Division, CSIR-Indian Institute of Integrative Medicine, Canal Road, Jammu 180001, India.
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Talhi O, Schnekenburger M, Panning J, Pinto DG, Fernandes JA, Almeida Paz FA, Jacob C, Diederich M, Silva AM. Bis(4-hydroxy-2H-chromen-2-one): Synthesis and effects on leukemic cell lines proliferation and NF-κB regulation. Bioorg Med Chem 2014; 22:3008-15. [DOI: 10.1016/j.bmc.2014.03.046] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2014] [Revised: 03/27/2014] [Accepted: 03/30/2014] [Indexed: 01/24/2023]
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14
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Neuroprotective mechanism of ischemic postconditioning in mice: a possible relationship between protein kinase C and nitric oxide pathways. J Surg Res 2014; 189:174-83. [DOI: 10.1016/j.jss.2014.02.019] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2014] [Revised: 02/06/2014] [Accepted: 02/14/2014] [Indexed: 11/21/2022]
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15
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Pharmacologic evidence for role of endothelial nitric oxide synthase in neuroprotective mechanism of ischemic postconditioning in mice. J Surg Res 2014; 188:349-60. [DOI: 10.1016/j.jss.2013.12.015] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2013] [Revised: 12/06/2013] [Accepted: 12/13/2013] [Indexed: 11/22/2022]
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16
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Mo LQ, Chen Y, Song L, Wu GM, Tang N, Zhang YY, Wang XB, Liu KX, Zhou J. Osthole prevents intestinal ischemia-reperfusion-induced lung injury in a rodent model. J Surg Res 2014; 189:285-94. [PMID: 24726060 DOI: 10.1016/j.jss.2014.03.026] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2013] [Revised: 02/09/2014] [Accepted: 03/11/2014] [Indexed: 11/16/2022]
Abstract
BACKGROUND Intestinal ischemia-reperfusion (II/R) is associated with high morbidity and mortality. The aim of this study was to investigate the effects of osthole on lung injury and mortality induced by II/R. METHODS A rat model of II/R was induced by clamping the superior mesenteric artery for 90 min followed by reperfusion for 240 min. Osthole was administrated intraperitoneally at 30 min before intestinal ischemia (10 or 50 mg/kg). The survival rate and mean arterial pressure were observed. Blood samples were obtained for blood gas analyses. Lung injury was assessed by the histopathologic changes (hematoxylin and eosin staining), lung wet-to-dry weight ratio, and pulmonary permeability index. The levels of reactive oxygen species, malondialdehyde, interleukin 6, and tumor necrosis factor α, as well as the activities of superoxide dismutase and myeloperoxidase in lung were measured. RESULTS The survival rate, ratio of arterial oxygen tension to fraction of inspired oxygen, and mean arterial pressure decreased significantly after II/R. Results also indicated that II/R-induced severe lung injury evidenced by increase in pathologic scores, lung wet-to-dry weight ratio, and pulmonary permeability index, which was accompanied by increases in the levels of pulmonary reactive oxygen species, malondialdehyde, interleukin 6, tumor necrosis factor α, and the pulmonary myeloperoxidase activity and a decrease in superoxide dismutase activity. Osthole could significantly ameliorate lung injury and improve the previously mentioned variables. CONCLUSIONS These findings indicated that osthole could attenuate the lung injury induced by II/R in rats, at least in part, by inhibiting inflammatory response and oxidative stress.
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Affiliation(s)
- Li-Qun Mo
- Department of Anesthesiology, Affiliated Hospital of Luzhou Medical College, Luzhou, People's Republic of China
| | - Ye Chen
- Department of Traditional Chinese Medicine, Affiliated Hospital of Luzhou Medical College, Luzhou, People's Republic of China
| | - Li Song
- Department of Anesthesiology, Affiliated Hospital of Luzhou Medical College, Luzhou, People's Republic of China
| | - Gang-Ming Wu
- Department of Anesthesiology, Affiliated Hospital of Luzhou Medical College, Luzhou, People's Republic of China
| | - Ni Tang
- Department of Anesthesiology, Affiliated Hospital of Luzhou Medical College, Luzhou, People's Republic of China
| | - Ying-Ying Zhang
- Department of Anesthesiology, Affiliated Hospital of Luzhou Medical College, Luzhou, People's Republic of China
| | - Xiao-Bin Wang
- Department of Anesthesiology, Affiliated Hospital of Luzhou Medical College, Luzhou, People's Republic of China
| | - Ke-Xuan Liu
- Department of Anesthesiology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, People's Republic of China
| | - Jun Zhou
- Department of Anesthesiology, Affiliated Hospital of Luzhou Medical College, Luzhou, People's Republic of China.
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17
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Role of P2X7 purinoceptors in neuroprotective mechanism of ischemic postconditioning in mice. Mol Cell Biochem 2014; 390:161-73. [DOI: 10.1007/s11010-014-1967-9] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2013] [Accepted: 01/21/2014] [Indexed: 01/23/2023]
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18
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Yu HP, Liu FC, Tsai YF, Hwang TL. Osthole attenuates hepatic injury in a rodent model of trauma-hemorrhage. PLoS One 2013; 8:e65916. [PMID: 23755293 PMCID: PMC3675024 DOI: 10.1371/journal.pone.0065916] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2013] [Accepted: 04/30/2013] [Indexed: 01/14/2023] Open
Abstract
Recent evidences show that osthole possesses anti-inflammatory properties and protective effects following shock-like states, but the mechanism of these effects remains unknown. The p38 mitogen-activated protein kinase (p38 MAPK) pathway exerts anti-inflammatory effects in injury. The aim of this study was to investigate whether p38 MAPK plays any role in the osthole-mediated attenuation of hepatic injury after trauma-hemorrhage. Male Sprague-Dawley rats underwent trauma-hemorrhage (mean blood pressure maintained at approximately 35-40 mmHg for 90 minutes), followed by fluid resuscitation. During resuscitation, a single dose of osthole (3 mg/kg, intravenously) with and without a p38 MAPK inhibitor SB-203580 (2 mg/kg, intravenously), SB-203580 or vehicle was administered. Plasma alanine aminotransferase (ALT) with aspartate aminotransferase (AST) concentrations and various hepatic parameters were measured (n = 8 rats/group) at 24 hours after resuscitation. The results showed that trauma-hemorrhage increased hepatic myeloperoxidase activity, intercellular adhesion molecule-1 and interleukin-6 levels, and plasma ALT and AST concentrations. These parameters were significantly improved in the osthole-treated rats subjected to trauma-hemorrhage. Osthole treatment also increased hepatic phospho-p38 MAPK expression compared with vehicle-treated trauma-hemorrhaged rats. Co-administration of SB-203580 with osthole abolished the osthole-induced beneficial effects on the above parameters and hepatic injury. These results suggest that the protective effect of osthole administration on alleviation of hepatic injury after trauma-hemorrhage, which is, at least in part, through p38 MAPK-dependent pathway.
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Affiliation(s)
- Huang-Ping Yu
- Department of Anesthesiology, Chang Gung Memorial Hospital, Taoyuan, Taiwan
- College of Medicine, Chang Gung University, Taoyuan, Taiwan
- * E-mail: (HPY); (TLH)
| | - Fu-Chao Liu
- Department of Anesthesiology, Chang Gung Memorial Hospital, Taoyuan, Taiwan
- College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Yung-Fong Tsai
- Department of Anesthesiology, Chang Gung Memorial Hospital, Taoyuan, Taiwan
- College of Medicine, Chang Gung University, Taoyuan, Taiwan
- Graduate Institute of Clinical Medical Sciences, Chang Gung University, Taoyuan, Taiwan
| | - Tsong-Long Hwang
- Graduate Institute of Natural Products, Chang Gung University, Taoyuan, Taiwan
- * E-mail: (HPY); (TLH)
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