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Zajkowska I, Niczyporuk P, Urbaniak A, Tomaszek N, Modzelewski S, Waszkiewicz N. Investigating the Impacts of Diet, Supplementation, Microbiota, Gut-Brain Axis on Schizophrenia: A Narrative Review. Nutrients 2024; 16:2228. [PMID: 39064675 PMCID: PMC11279812 DOI: 10.3390/nu16142228] [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: 06/24/2024] [Revised: 07/06/2024] [Accepted: 07/08/2024] [Indexed: 07/28/2024] Open
Abstract
Schizophrenia is a disease with a complex etiology that significantly impairs the functioning of patients. In recent years, there has been increasing focus on the importance of the gut microbiota in the context of the gut-brain axis. In our study, we analyzed data on the gut-brain axis in relation to schizophrenia, as well as the impacts of eating habits, the use of various supplements, and diets on schizophrenia. Additionally, the study investigated the impact of antipsychotics on the development of metabolic disorders, such as diabetes, dyslipidemia, and obesity. There may be significant clinical benefits to be gained from therapies supported by supplements such as omega-3 fatty acids, B vitamins, and probiotics. The results suggest the need for a holistic approach to the treatment of schizophrenia, incorporating both drug therapy and dietary interventions.
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Affiliation(s)
| | | | | | | | - Stefan Modzelewski
- Department of Psychiatry, Medical University of Bialystok, pl. Wołodyjowskiego 2, 15-272 Białystok, Poland; (I.Z.); (N.W.)
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Zhou ZJ, Dong JY, Qiu Y, Zhang GL, Wei K, He LH, Sun YN, Jiang HZ, Zhang SS, Guo XR, Wang JY, Chen DP. Sulforaphane decreases oxidative stress and inhibits NLRP3 inflammasome activation in a mouse model of ulcerative colitis. Biomed Pharmacother 2024; 175:116706. [PMID: 38713944 DOI: 10.1016/j.biopha.2024.116706] [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: 01/26/2024] [Revised: 04/27/2024] [Accepted: 05/02/2024] [Indexed: 05/09/2024] Open
Abstract
Excessive oxidative stress and NLRP3 inflammasome activation are considered the main drivers of inflammatory bowel disease (IBD), and inhibition of inflammasomes ameliorates clinical symptoms and morphological manifestations of IBD. Herein, we examined the roles of NLRP3 activation in IBD and modulation of NLRP3 by sulforaphane (SFN), a compound with multiple pharmacological activities that is extracted from cruciferous plants. To simulate human IBD, we established a mouse colitis model by administering dextran sodium sulfate in the drinking water. SFN (25, 50 mg·kg-1·d-1, ig) or the positive control sulfasalazine (500 mg/kg, ig) was administered to colitis-affected mice for 7 days. Model mice displayed pathological alterations in colon tissue as well as classic symptoms of colitis beyond substantial tissue inflammation. Expression of NLRP3, ASC, and caspase-1 was significantly elevated in the colonic epithelium. The expression of NLRP3 inflammasomes led to activation of downstream proteins and increases in the cytokines IL-18 and IL-1β. SFN administration either fully or partially reversed these changes, thus restoring IL-18 and IL-1β, substantially inhibiting NLRP3 activation, and decreasing inflammation. SFN alleviated the inflammation induced by LPS and NLRP3 agonists in RAW264.7 cells by decreasing the levels of reactive oxygen species. In summary, our results revealed the pathological roles of oxidative stress and NLRP3 in colitis, and indicated that SFN might serve as a natural NLRP3 inhibitor, thereby providing a new strategy for alternative colitis treatment.
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Affiliation(s)
- Zi-Juan Zhou
- Comparative Medicine Department of Researching and Teaching, Dalian Medical University, Dalian, Liaoning 116044, China
| | - Jian-Yi Dong
- Comparative Medicine Department of Researching and Teaching, Dalian Medical University, Dalian, Liaoning 116044, China
| | - Yang Qiu
- Dalian Medical University, Dalian, Liaoning 116044, China
| | - Guo-Lin Zhang
- Dalian Medical University, Dalian, Liaoning 116044, China
| | - Kun Wei
- Dalian Medical University, Dalian, Liaoning 116044, China
| | - Li-Heng He
- Dalian Medical University, Dalian, Liaoning 116044, China
| | - Yi-Ning Sun
- Dalian Medical University, Dalian, Liaoning 116044, China
| | | | - Shuang-Shuang Zhang
- Comparative Medicine Department of Researching and Teaching, Dalian Medical University, Dalian, Liaoning 116044, China
| | - Xin-Rui Guo
- Comparative Medicine Department of Researching and Teaching, Dalian Medical University, Dalian, Liaoning 116044, China
| | - Jing-Yu Wang
- Comparative Medicine Department of Researching and Teaching, Dalian Medical University, Dalian, Liaoning 116044, China.
| | - Da-Peng Chen
- Comparative Medicine Department of Researching and Teaching, Dalian Medical University, Dalian, Liaoning 116044, China.
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Li Y, Ma B, Wang Z, Chen Y, Dong Y. The Effect Mechanism of N6-adenosine Methylation (m6A) in Melatonin Regulated LPS-induced Colon Inflammation. Int J Biol Sci 2024; 20:2491-2506. [PMID: 38725850 PMCID: PMC11077364 DOI: 10.7150/ijbs.95316] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2024] [Accepted: 03/29/2024] [Indexed: 05/12/2024] Open
Abstract
Colon inflammation is characterized by disturbances in the intestinal microbiota and inflammation. Melatonin (Mel) can improve colon inflammation. However, the underlying mechanism remains unclear. Recent studies suggest that m6A methylation modification may play an important role in inflammatory responses. This study aimed to explore the effects of melatonin and LPS-mediated m6A methylation on colon inflammation. Our study found that melatonin inhibits M1 macrophages, activates M2 macrophages, inhibit the secretion of pro-inflammatory factors, maintain colon homeostasis and improves colon inflammation through MTNR1B. In addition, the increased methylation level of m6A is associated with the occurrence of colon inflammation, and melatonin can also reduce the level of colon methylation to improve colon inflammation. Among them, the main methylated protein METTL3 can be inhibited by melatonin through MTNR1B. In a word, melatonin regulates m6A methylation by improving abnormal METTL3 protein level to reshape the microflora and activate macrophages to improve colon inflammation, mainly through MTNR1B.
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Affiliation(s)
- Yuanyuan Li
- Laboratory of Neurobiology, College of Veterinary Medicine, China Agricultural University, Beijing, People's Republic of China
| | - Baochen Ma
- Key Laboratory of Precision Nutrition and Food Quality, Ministry of Education, Department of Nutrition and Health, China Agricultural University, Beijing, People's Republic of China
| | - Zixu Wang
- Laboratory of Neurobiology, College of Veterinary Medicine, China Agricultural University, Beijing, People's Republic of China
| | - Yaoxing Chen
- Laboratory of Neurobiology, College of Veterinary Medicine, China Agricultural University, Beijing, People's Republic of China
| | - Yulan Dong
- Laboratory of Neurobiology, College of Veterinary Medicine, China Agricultural University, Beijing, People's Republic of China
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Hou M, Leng Y, Shi Y, Tan Z, Min X. Astragalus membranaceus as a Drug Candidate for Inflammatory Bowel Disease: The Preclinical Evidence. THE AMERICAN JOURNAL OF CHINESE MEDICINE 2023; 51:1501-1526. [PMID: 37530507 DOI: 10.1142/s0192415x23500684] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/03/2023]
Abstract
Inflammatory bowel disease (IBD) is a group of chronic inflammatory disorders that include Crohn's disease (CD) and ulcerative colitis (UC). Today, IBD has no successful treatment. As a result, it is of paramount importance to develop novel therapeutic agents for IBD prevention and treatment. Astragalus membranaceus (AMS) is a traditional Chinese medicine found in the AMS root. Modern pharmacological studies indicate that AMS and its constituents exhibit multiple bioactivities, such as anti-inflammatory, anti-oxidant, immune regulatory, anticancer, hypolipidemic, hypoglycemic, hepatoprotective, expectorant, and diuretic effects. AMS and its active constituents, which have been reported to be effective in IBD treatment, are believed to be viable candidate drugs for IBD treatment. These underlying mechanisms are associated with anti-inflammation, anti-oxidation, immunomodulation, intestinal epithelial repair, gut microbiota homeostasis, and improved energy metabolism. In this review, we summarize the efficacy and underlying mechanisms involved in IBD treatment with AMS and its active constituents in preclinical studies.
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Affiliation(s)
- Min Hou
- The First Clinical Medical College, Lanzhou University, Lanzhou 730000, P. R. China
| | - Yufang Leng
- The First Clinical Medical College, Lanzhou University, Lanzhou 730000, P. R. China
- Department of Anesthesiology, The First Hospital of Lanzhou University, Lanzhou 730000, P. R. China
| | - Yajing Shi
- The First Clinical Medical College, Lanzhou University, Lanzhou 730000, P. R. China
| | - Zhiguo Tan
- The First Clinical Medical College, Lanzhou University, Lanzhou 730000, P. R. China
| | - Xiangzhen Min
- Department of Anesthesiology, The First Hospital of Lanzhou University, Lanzhou 730000, P. R. China
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Mantel M, Derkinderen P, Bach-Ngohou K, Neunlist M, Rolli-Derkinderen M. Crosstalk between omega-6 oxylipins and the enteric nervous system: Implications for gut disorders? Front Med (Lausanne) 2023; 10:1083351. [PMID: 37056732 PMCID: PMC10086145 DOI: 10.3389/fmed.2023.1083351] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Accepted: 03/03/2023] [Indexed: 03/30/2023] Open
Abstract
The enteric nervous system (ENS) continues to dazzle scientists with its ability to integrate signals, from the outside as well as from the host, to accurately regulate digestive functions. Composed of neurons and enteric glial cells, the ENS interplays with numerous neighboring cells through the reception and/or the production of several types of mediators. In particular, ENS can produce and release n-6 oxylipins. These lipid mediators, derived from arachidonic acid, play a major role in inflammatory and allergic processes, but can also regulate immune and nervous system functions. As such, the study of these n-6 oxylipins on the digestive functions, their cross talk with the ENS and their implication in pathophysiological processes is in full expansion and will be discussed in this review.
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Affiliation(s)
- Marine Mantel
- Nantes Université, Inserm, The Enteric Nervous System in Gut and Brain Disorders, Nantes, France
| | - Pascal Derkinderen
- CHU Nantes, Inserm, Nantes Université, The Enteric Nervous System in Gut and Brain Disorders, Nantes, France
| | - Kalyane Bach-Ngohou
- CHU Nantes, Inserm, Nantes Université, The Enteric Nervous System in Gut and Brain Disorders, Nantes, France
| | - Michel Neunlist
- Nantes Université, Inserm, The Enteric Nervous System in Gut and Brain Disorders, Nantes, France
| | - Malvyne Rolli-Derkinderen
- Nantes Université, Inserm, The Enteric Nervous System in Gut and Brain Disorders, Nantes, France
- *Correspondence: Malvyne Rolli-Derkinderen,
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Vitamin D (Like Every Nutrient) is a Team Player. Integr Med (Encinitas) 2022; 21:8-14. [PMID: 36644600 PMCID: PMC9542927] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
Vitamin D is critical for many physiological functions in humans. Numerous population-wide assessments have shown that vitamin D deficiency is very common. Unfortunately, far too many studies intending to assess the clinical efficacy of supplementation are poorly designed. They look at vitamin D as an isolated agent, independent of the complex matrix required for it to be physiologically effective and at dosages inadequate for much of the population. These errors cause inappropriate and invalid results that are then misused to not only recommend against supplementation but to also recommend against even measuring vitamin D levels. This editorial addresses the weaknesses of typical vitamin D research, such as VITAL, and the key factors that must be addressed for accurate vitamin D research.
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Bastaki SMA, Amir N, Adeghate E, Ojha S. Lycopodium Mitigates Oxidative Stress and Inflammation in the Colonic Mucosa of Acetic Acid-Induced Colitis in Rats. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27092774. [PMID: 35566122 PMCID: PMC9102450 DOI: 10.3390/molecules27092774] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Revised: 03/24/2022] [Accepted: 03/29/2022] [Indexed: 11/19/2022]
Abstract
Inflammatory bowel diseases (IBDs) such as ulcerative colitis (UC) and Crohn’s disease (CD) are diseases of the gastrointestinal system involving genetic and environmental factors attributed to oxidative stress and inflammation. Targeting oxidative stress and inflammation by novel dietary compounds of natural origin convincingly appears to be one of the important therapeutic strategies to keep the disease in remission. As there is no permanent cure for IBD except for chronic long-term treatment or surgery, it is therefore imperative to investigate plant-based agents that are receiving attention for their therapeutic benefits to overcome the debilitating clinical conditions of IBD. Lycopodium (LYCO), a plant of tropical and subtropical origin and known by numerous names such as ground pine, club moss, or devil’s claw, has been popularly used for centuries in traditional medicine including Chinese and Indian medicines. In the present study, the effect of LYCO has been investigated in an acetic acid (AA)-induced colitis model in Wistar rats. LYCO was orally administered at the dose of 50 mg/kg/day either 3 days before or 30 min after the induction of IBD and continued for 7 days by intrarectal administration of AA. The changes in body weight and macroscopic and microscopic analysis of the colon of rats of different experimental groups were observed on days 0, 2, 4, and 7. The levels of myeloperoxidase (MPO), reduced glutathione (GSH), and malondialdehyde (MDA) were measured. AA caused a significant reduction in body weight and increased macroscopic and microscopic ulcer scores along with a significant decline in antioxidant enzymes, superoxide dismutase (SOD), and catalase and antioxidant substrate, glutathione (GSH). There was a concomitant increased formation of malondialdehyde (MDA), a marker of lipid peroxidation, and raised myeloperoxidase (MPO) activity, a marker of neutrophil activation. Treatment with LYCO significantly improved IBD-induced reduction in body weight, improved histology, inhibited MDA formation, and restored antioxidants along with reduced MPO activity. AA also caused the release of proinflammatory cytokines such as interleukin-1β (IL-1β) and interleukin-23 (IL-23). Furthermore, AA also increased the levels of calprotectin, a protein released by neutrophils under inflammatory conditions of the gastrointestinal tract. LYCO treatment significantly reduced the release of calprotectin and proinflammatory cytokines. The results demonstrate that LYCO treatment has the potential to improve disease activity by inhibiting oxidative stress, lipid peroxidation, and inflammation along with histological preservation of colonic tissues.
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Affiliation(s)
- Salim M. A. Bastaki
- Department of Pharmacology and Therapeutics, College of Medicine and Health Sciences, United Arab Emirates University, Al Ain P.O. Box 15551, United Arab Emirates; (N.A.); (S.O.)
- Correspondence:
| | - Naheed Amir
- Department of Pharmacology and Therapeutics, College of Medicine and Health Sciences, United Arab Emirates University, Al Ain P.O. Box 15551, United Arab Emirates; (N.A.); (S.O.)
| | - Ernest Adeghate
- Department of Anatomy, College of Medicine and Health Sciences, United Arab Emirates University, Al Ain P.O. Box 15551, United Arab Emirates;
| | - Shreesh Ojha
- Department of Pharmacology and Therapeutics, College of Medicine and Health Sciences, United Arab Emirates University, Al Ain P.O. Box 15551, United Arab Emirates; (N.A.); (S.O.)
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Involvement of Proinflammatory Arachidonic Acid (ARA) Derivatives in Crohn’s Disease (CD) and Ulcerative Colitis (UC). J Clin Med 2022; 11:jcm11071861. [PMID: 35407469 PMCID: PMC8999554 DOI: 10.3390/jcm11071861] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2022] [Revised: 03/24/2022] [Accepted: 03/24/2022] [Indexed: 12/10/2022] Open
Abstract
Recently, an increase in the incidence of inflammatory bowel disease (IBD) has been observed, especially among children and adolescents. Currently, few studies focus on the differentiation of inflammation in IBD subunits, i.e., Crohn’s Disease (CD) and Ulcerative Colitis (UC). The aim of this study was to compare the concentrations of proinflammatory mediators of arachidonic acid (ARA) and linoleic acid (LA) in patients with CD (n = 34) and UC (n = 30), in order to identify differences in inflammation in both diseases and within the same entity, according to disease activity. Sixty-four adolescents with a mean age of 13.76 ± 2.69 and 14.15 ± 3.31, for CD and UC, respectively, were enrolled in the study. Biochemical analysis of ARA and LA derivatives was performed using a liquid chromatography. A trend was observed in the concentration of 15S-HETE (hydroxyeicosatetraenoic acids) in CD relative to UC. The active phase of both diseases showed a higher 15S-HETE concentration in active CD relative to active UC. Comparing patients with CD with active and inactive disease showed a trend of increased levels of thromboxane B2, leukotriene B4 and 9S-HODE (hydroxyoctadecadienoic acid) in the active versus the inactive disease. We also observed statistically significantly higher levels of 12S-HETE in inactive CD relative to active CD. In the UC group, on the other hand, statistically significantly higher levels of prostaglandin E2 and 16RS-HETE were observed in active UC relative to inactive UC. Moreover, significantly higher concentrations of LTX A4 5S, 6R were observed in inactive UC relative to the active phase. In conclusion, the present study indicated the activity of the 15-LOX pathway in CD. Further studies involving lipid mediators in patients with IBD may contribute to the development of new therapies for the treatment of IBD. The identification of differences in the course of inflammation may help to target therapy in CD and UC, and perhaps allow the introduction of an additional diagnostic marker between the two main IBD subtypes.
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Das UN. Arachidonic Acid as Mechanotransducer of Renin Cell Baroreceptor. Nutrients 2022; 14:nu14040749. [PMID: 35215399 PMCID: PMC8874622 DOI: 10.3390/nu14040749] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2021] [Revised: 01/31/2022] [Accepted: 02/02/2022] [Indexed: 11/16/2022] Open
Abstract
For normal maintenance of blood pressure and blood volume a well-balanced renin-angiotensin-aldosterone system (RAS) is necessary. For this purpose, renin is secreted as the situation demands by the juxtaglomerular cells (also called as granular cells) that are in the walls of the afferent arterioles. Juxtaglomerular cells can sense minute changes in the blood pressure and blood volume and accordingly synthesize, store, and secrete appropriate amounts of renin. Thus, when the blood pressure and blood volume are decreased JGA cells synthesize and secrete higher amounts of renin and when the blood pressure and blood volume is increased the synthesis and secretion of renin is decreased such that homeostasis is restored. To decipher this important function, JGA cells (renin cells) need to sense and transmit the extracellular physical forces to their chromatin to control renin gene expression for appropriate renin synthesis. The changes in perfusion pressure are sensed by Integrin β1 that is transmitted to the renin cell’s nucleus via lamin A/C that produces changes in the architecture of the chromatin. This results in an alteration (either increase or decrease) in renin gene expression. Cell membrane is situated in an unique location since all stimuli need to be transmitted to the cell nucleus and messages from the DNA to the cell external environment can be conveyed only through it. This implies that cell membrane structure and integrity is essential for all cellular functions. Cell membrane is composed to proteins and lipids. The lipid components of the cell membrane regulate its (cell membrane) fluidity and the way the messages are transmitted between the cell and its environment. Of all the lipids present in the membrane, arachidonic acid (AA) forms an important constituent. In response to pressure and other stimuli, cellular and nuclear shape changes occur that render nucleus to act as an elastic mechanotransducer that produces not only changes in cell shape but also in its dynamic behavior. Cell shape changes in response to external pressure(s) result(s) in the activation of cPLA2 (cytosolic phospholipase 2)-AA pathway that stretches to recruit myosin II which produces actin-myosin cytoskeleton contractility. Released AA can undergo peroxidation and peroxidized AA binds to DNA to regulate the expression of several genes. Alterations in the perfusion pressure in the afferent arterioles produces parallel changes in the renin cell membrane leading to changes in renin release. AA and its metabolic products regulate not only the release of renin but also changes in the vanilloid type 1 (TRPV1) expression in renal sensory nerves. Thus, AA and its metabolites function as intermediate/mediator molecules in transducing changes in perfusion and mechanical pressures that involves nuclear mechanotransduction mechanism. This mechanotransducer function of AA has relevance to the synthesis and release of insulin, neurotransmitters, and other soluble mediators release by specialized and non-specialized cells. Thus, AA plays a critical role in diseases such as diabetes mellitus, hypertension, atherosclerosis, coronary heart disease, sepsis, lupus, rheumatoid arthritis, and cancer.
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Affiliation(s)
- Undurti N Das
- UND Life Sciences, 2221 NW 5th St., Battle Ground, WA 98604, USA
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Maresin-1 and Inflammatory Disease. Int J Mol Sci 2022; 23:ijms23031367. [PMID: 35163291 PMCID: PMC8835953 DOI: 10.3390/ijms23031367] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2022] [Revised: 01/24/2022] [Accepted: 01/24/2022] [Indexed: 11/17/2022] Open
Abstract
Inflammation is an essential action to protect the host human body from external, harmful antigens and microorganisms. However, an excessive inflammation reaction sometimes exceeds tissue damage and can disrupt organ functions. Therefore, anti-inflammatory action and resolution mechanisms need to be clarified. Dietary foods are an essential daily lifestyle that influences various human physiological processes and pathological conditions. Especially, omega-3 fatty acids in the diet ameliorate chronic inflammatory skin diseases. Recent studies have identified that omega-3 fatty acid derivatives, such as the resolvin series, showed strong anti-inflammatory actions in various inflammatory diseases. Maresin-1 is a derivative of one of the representative omega-3 fatty acids, i.e., docosahexaenoic acid (DHA), and has shown beneficial action in inflammatory disease models. In this review, we summarize the detailed actions of maresin-1 in immune cells and inflammatory diseases.
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Dong JY, Xia KJ, Liang W, Liu LL, Yang F, Fang XS, Xiong YJ, Wang L, Zhou ZJ, Li CY, Zhang WD, Wang JY, Chen DP. Ginsenoside Rb1 alleviates colitis in mice via activation of endoplasmic reticulum-resident E3 ubiquitin ligase Hrd1 signaling pathway. Acta Pharmacol Sin 2021; 42:1461-1471. [PMID: 33268823 PMCID: PMC8379258 DOI: 10.1038/s41401-020-00561-9] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2020] [Accepted: 10/19/2020] [Indexed: 12/11/2022] Open
Abstract
Endoplasmic reticulum (ER) homeostasis is regulated by ER-resident E3 ubiquitin ligase Hrd1, which has been implicated in inflammatory bowel disease (IBD). Ginsenoside Rb1 (GRb1) is the major ginsenoside in ginseng with multiple pharmacological activities. In this study we investigated the role of Hrd1 in IBD and its regulation by GRb1. Two mouse colitis models were established to mimic human IBD: drinking water containing dextran sodium sulfate (DSS) as well as intra-colonic infusion of 2, 4, 6-trinitrobenzene sulfonic acid (TNBS). Colitis mice were treated with GRb1 (20, 40 mg·kg-1·d-1, ig) or a positive control drug sulfasalazine (500 mg·kg-1·d-1, ig) for 7 days. The model mice showed typical colitis symptoms and pathological changes in colon tissue. In addition to significant inflammatory responses and cell apoptosis in colon tissue, colon epithelial expression of Hrd1 was significantly decreased, the expression of ER stress markers GRP78, PERK, CHOP, and caspase 12 was increased, and the expression of Fas was increased (Fas was removed by Hrd1-induced ubiquitination). These changes were partially, or completely, reversed by GRb1 administration, whereas injection of Hrd1 inhibitor LS102 (50 mg·kg-1· d-1, ip, for 6 days) exacerbated colitis symptoms in colitis mice. GRb1 administration not only normalized Hrd1 expression at both the mRNA and protein levels, but also alleviated the ER stress response, Fas-related apoptosis, and other colitis symptoms. In intestinal cell line IEC-6, the expression of Hrd1 was significantly decreased by LPS treatment, but was normalized by GRb1 (200 μM). GRb1 alleviated LPS-induced ER stress and cell apoptosis in IEC-6 cells, and GRb1 action was inhibited by knockdown of Hrd1 using small interfering RNA. In summary, these results reveal a pathological role of Hrd1 in colitis, and provide a novel insight into alternative treatment of colitis using GRb1 activating Hrd1 signaling pathway.
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Pochard C, Gonzales J, Bessard A, Mahe MM, Bourreille A, Cenac N, Jarry A, Coron E, Podevin J, Meurette G, Neunlist M, Rolli-Derkinderen M. PGI 2 Inhibits Intestinal Epithelial Permeability and Apoptosis to Alleviate Colitis. Cell Mol Gastroenterol Hepatol 2021; 12:1037-1060. [PMID: 33971327 PMCID: PMC8342971 DOI: 10.1016/j.jcmgh.2021.05.001] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/12/2020] [Revised: 05/01/2021] [Accepted: 05/03/2021] [Indexed: 12/12/2022]
Abstract
BACKGROUND & AIMS Inflammatory bowel diseases (IBDs) that encompass both ulcerative colitis and Crohn's disease are a major public health problem with an etiology that has not been fully elucidated. There is a need to improve disease outcomes and preventive measures by developing new effective and lasting treatments. Although polyunsaturated fatty acid metabolites play an important role in the pathogenesis of several disorders, their contribution to IBD is yet to be understood. METHODS Polyunsaturated fatty acids metabolite profiles were established from biopsy samples obtained from Crohn's disease, ulcerative colitis, or control patients. The impact of a prostaglandin I2 (PGI2) analog on intestinal epithelial permeability was tested in vitro using Caco-2 cells and ex vivo using human or mouse explants. In addition, mice were treated with PGI2 to observe dextran sulfate sodium (DSS)-induced colitis. Tight junction protein expression, subcellular location, and apoptosis were measured in the different models by immunohistochemistry and Western blotting. RESULTS A significant reduction of PGI2 in IBD patient biopsies was identified. PGI2 treatment reduced colonic inflammation, increased occludin expression, decreased caspase-3 cleavage and intestinal permeability, and prevented colitis development in DSS-induced mice. Using colonic explants from mouse and human control subjects, the staurosporine-induced increase in paracellular permeability was prevented by PGI2. PGI2 also induced the membrane location of occludin and reduced the permeability observed in colonic biopsies from IBD patients. CONCLUSIONS The present study identified a PGI2 defect in the intestinal mucosa of IBD patients and demonstrated its protective role during colitis.
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Affiliation(s)
- Camille Pochard
- Université de Nantes, Inserm, TENS, The Enteric Nervous System in Gut and Brain Disorders, Institut des Maladies de l'Appareil Digestif, Nantes, France
| | - Jacques Gonzales
- Université de Nantes, Inserm, TENS, The Enteric Nervous System in Gut and Brain Disorders, Institut des Maladies de l'Appareil Digestif, Nantes, France
| | - Anne Bessard
- Université de Nantes, Inserm, TENS, The Enteric Nervous System in Gut and Brain Disorders, Institut des Maladies de l'Appareil Digestif, Nantes, France
| | - Maxime M Mahe
- Université de Nantes, Inserm, TENS, The Enteric Nervous System in Gut and Brain Disorders, Institut des Maladies de l'Appareil Digestif, Nantes, France; Department of Pediatric General and Thoracic Surgery, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio; Department of Pediatrics, University of Cincinnati, Cincinnati, Ohio
| | - Arnaud Bourreille
- Université de Nantes, Inserm, TENS, The Enteric Nervous System in Gut and Brain Disorders, Institut des Maladies de l'Appareil Digestif, Nantes, France; CHU de Nantes, Hôpital Hôtel-Dieu, Nantes, France; CIC 1413, Nantes, France
| | - Nicolas Cenac
- UMR1220, IRSD, INSERM, INRA, INP-ENVT, Université de Toulouse, Toulouse, France
| | - Anne Jarry
- Université de Nantes, Inserm, CRCINA, Nantes, France
| | - Emmanuel Coron
- Université de Nantes, Inserm, TENS, The Enteric Nervous System in Gut and Brain Disorders, Institut des Maladies de l'Appareil Digestif, Nantes, France; CHU de Nantes, Hôpital Hôtel-Dieu, Nantes, France
| | | | - Guillaume Meurette
- Université de Nantes, Inserm, TENS, The Enteric Nervous System in Gut and Brain Disorders, Institut des Maladies de l'Appareil Digestif, Nantes, France; CHU de Nantes, Hôpital Hôtel-Dieu, Nantes, France
| | - Michel Neunlist
- Université de Nantes, Inserm, TENS, The Enteric Nervous System in Gut and Brain Disorders, Institut des Maladies de l'Appareil Digestif, Nantes, France
| | - Malvyne Rolli-Derkinderen
- Université de Nantes, Inserm, TENS, The Enteric Nervous System in Gut and Brain Disorders, Institut des Maladies de l'Appareil Digestif, Nantes, France.
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13
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Konno T, Kohno T, Miyakawa M, Tanaka H, Kojima T. Pyk2 inhibitor prevents epithelial hyperpermeability induced by HMGB1 and inflammatory cytokines in Caco-2 cells. Tissue Barriers 2021; 9:1890526. [PMID: 33660567 DOI: 10.1080/21688370.2021.1890526] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
The non-receptor protein tyrosine kinase 2β (Pyk2) phosphorylated tricellular tight junction (tTJ) molecules angulin-1/LSR and tricellulin (TRIC) and the inhibitor PF-431396 (PF43) suppress angulin-1/LSR and TRIC recruitment to tTJs. The disruption of the intestinal epithelial barrier by high mobility group box 1 (HMGB1) and the inflammatory cytokines TNFα and IFNγ contributes to downregulation of angulin-1/LSR and TRIC in 2.5D culture of Caco-2 cells as a novel model of inflammatory bowel disease (IBD). In the present study, to investigate the roles of Pyk2 phosphorylated angulin-1/LSR and TRIC in the intestinal epithelial barrier, 2D and 2.5D cultures of Caco-2 cells were treated with the Pyk2 inhibitor PF-43 with or without HMGB1, inflammatory cytokines TNFα and IFNγ. Treatment with PF-43 increased expression of angulin-1/LSR, phosphorylated AMPK and phosphorylated MAPK and decreased that of phosphorylated JNK, with upregulation of the epithelial barrier and cellular metabolism measured as basal oxygen consumption rate (OCR) and ATP production in 2D culture. Treatment with PF-43 prevented the downregulation of the epithelial barrier by HMGB1 and inflammatory cytokines in 2D culture. Treatment with PF-43 prevented the epithelial hyperpermeability induced by HMGB1 and inflammatory cytokines in 2.5D culture. In 2.5D culture, treatment with PF-43 inhibited the decreases of angulin-1/LSR, TRIC, pJNK, pAMPK and pMAPK induced by HMGB1 and the inflammatory cytokines. Treatment with PF-43 inhibited in part the induced phosphorylation of the serine of angulin-1/LSR and TRIC. Pyk2 inhibitor PF-43 may have potential for use in therapy for IBD via its actions with regard to phosphorylated tTJs and cellular metabolism.
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Affiliation(s)
- Takumi Konno
- Department of Cell Science, Research Institute for Frontier Medicine, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Takayuki Kohno
- Department of Cell Science, Research Institute for Frontier Medicine, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Maki Miyakawa
- Department of Cell Science, Research Institute for Frontier Medicine, Sapporo Medical University School of Medicine, Sapporo, Japan.,Sapporo IBD Clinic, Sapporo, Japan
| | | | - Takashi Kojima
- Department of Cell Science, Research Institute for Frontier Medicine, Sapporo Medical University School of Medicine, Sapporo, Japan
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14
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Jacob EM, Borah A, Pillai SC, Kumar DS. Inflammatory Bowel Disease: The Emergence of New Trends in Lifestyle and Nanomedicine as the Modern Tool for Pharmacotherapy. NANOMATERIALS (BASEL, SWITZERLAND) 2020; 10:E2460. [PMID: 33316984 PMCID: PMC7764399 DOI: 10.3390/nano10122460] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/03/2020] [Revised: 12/06/2020] [Accepted: 12/07/2020] [Indexed: 02/08/2023]
Abstract
The human intestine, which harbors trillions of symbiotic microorganisms, may enter into dysbiosis when exposed to a genetic defect or environmental stress. The naissance of chronic inflammation due to the battle of the immune system with the trespassing gut bacteria leads to the rise of inflammatory bowel disease (IBD). Though the genes behind the scenes and their link to the disease are still unclear, the onset of IBD occurs in young adults and has expanded from the Western world into the newly industrialized countries. Conventional drug deliveries depend on a daily heavy dosage of immune suppressants or anti-inflammatory drugs targeted for the treatment of two types of IBD, ulcerative colitis (UC) and Crohn's disease (CD), which are often associated with systemic side effects and adverse toxicities. Advances in oral delivery through nanotechnology seek remedies to overcome the drawbacks of these conventional drug delivery systems through improved drug encapsulation and targeted delivery. In this review, we discuss the association of genetic factors, the immune system, the gut microbiome, and environmental factors like diet in the pathogenesis of IBD. We also review the various physiological concerns required for oral delivery to the gastrointestinal tract (GIT) and new strategies in nanotechnology-derived, colon-targeting drug delivery systems.
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Affiliation(s)
| | | | | | - D. Sakthi Kumar
- Bio-Nano Electronics Research Centre, Graduate School of Interdisciplinary New Science, Toyo University, Kawagoe, Saitama 350-8585, Japan; (E.M.J.); (A.B.); (S.C.P.)
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15
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Receptors for pro-resolving mediators as a therapeutic tool for smooth muscle remodeling-associated disorders. Pharmacol Res 2020; 164:105340. [PMID: 33276103 DOI: 10.1016/j.phrs.2020.105340] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Revised: 11/25/2020] [Accepted: 11/26/2020] [Indexed: 12/16/2022]
Abstract
Respiratory airway, blood vessel and intestinal wall remodeling, in which smooth muscle remodeling plays a major role, is a key pathological event underlying the development of several associated diseases, including asthma, cardiovascular disorders (e.g., atherosclerosis, hypertension, and aneurism formation), and inflammatory bowel disease. However, the mechanisms underlying these remodeling processes remain poorly understood. We hypothesize that the creation of chronic inflammation-mediated networks that support and exacerbate the airway, as well as vascular and intestinal wall remodeling, is a crucial pathogenic mechanism governing the development of the associated diseases. The failed inflammation resolution might be one of the causal pathogenic mechanisms. Hence, it is reasonable to assume that applying specialized, pro-resolving mediators (SPMs), acting via cognate G-protein coupled receptors (GPCRs), could potentially be an effective pathway for treating these disorders. However, several obstacles, such as poor understanding of the SPM/receptor signaling pathways, SMP rapid inactivation as well as their complex and costly synthesis, limit their translational potential. In this connection, stable, small-molecule SPM mimetics and receptor agonists have emerged as new, potentially suitable drugs. It has been recently shown in preclinical studies that they can effectively attenuate the manifestations of asthma, atherosclerosis and Crohn's disease. Remarkably, some biased SPM receptor agonists, which cause a signaling response in the desired inflammation pro-resolving direction, revealed similar beneficial effects. These encouraging observations suggest that SPM mimetics and receptor agonists can be applied as a novel approach for the treatment of various chronic inflammation conditions, including airway, vascular and intestinal wall remodeling-associated disorders.
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16
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The cytokine MIF controls daily rhythms of symbiont nutrition in an animal-bacterial association. Proc Natl Acad Sci U S A 2020; 117:27578-27586. [PMID: 33067391 DOI: 10.1073/pnas.2016864117] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Abstract
The recent recognition that many symbioses exhibit daily rhythms has encouraged research into the partner dialogue that drives these biological oscillations. Here we characterized the pivotal role of the versatile cytokine macrophage migration inhibitory factor (MIF) in regulating a metabolic rhythm in the model light-organ symbiosis between Euprymna scolopes and Vibrio fischeri As the juvenile host matures, it develops complex daily rhythms characterized by profound changes in the association, from gene expression to behavior. One such rhythm is a diurnal shift in symbiont metabolism triggered by the periodic provision of a specific nutrient by the mature host: each night the symbionts catabolize chitin released from hemocytes (phagocytic immune cells) that traffic into the light-organ crypts, where the population of V. fischeri cells resides. Nocturnal migration of these macrophage-like cells, together with identification of an E. scolopes MIF (EsMIF) in the light-organ transcriptome, led us to ask whether EsMIF might be the gatekeeper controlling the periodic movement of the hemocytes. Western blots, ELISAs, and confocal immunocytochemistry showed EsMIF was at highest abundance in the light organ. Its concentration there was lowest at night, when hemocytes entered the crypts. EsMIF inhibited migration of isolated hemocytes, whereas exported bacterial products, including peptidoglycan derivatives and secreted chitin catabolites, induced migration. These results provide evidence that the nocturnal decrease in EsMIF concentration permits the hemocytes to be drawn into the crypts, delivering chitin. This nutritional function for a cytokine offers the basis for the diurnal rhythms underlying a dynamic symbiotic conversation.
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17
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18
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Stefanson A, Bakovic M. Dietary polyacetylene falcarinol upregulated intestinal heme oxygenase-1 and modified plasma cytokine profile in late phase lipopolysaccharide-induced acute inflammation in CB57BL/6 mice. Nutr Res 2020; 80:89-105. [PMID: 32738564 DOI: 10.1016/j.nutres.2020.06.014] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Accepted: 06/17/2020] [Indexed: 12/19/2022]
Abstract
Unlike polyphenols, which are widely available in the diet, polyacetylenes are available only from the Apiaceae family vegetables, including carrot, parsnip, fennel, celery, and many herbs (parsley, lovage, etc). The aim of this study was to investigate the hypothesis that polyacetylene falcarinol (FA) reduces intestinal inflammation and examine its similarity of effect to isothiocyanate R-sulforaphane during the late phase of acute inflammation. To this end, 3-month-old male CB57BL/6 mice were fed twice daily for 1 week with 5 mg/kg of FA, sulforaphane, or vehicle before receiving an intraperitoneal injection of 5 mg/kg endotoxin (lipopolysaccharide [LPS]) to induce modest acute inflammation. The expression of intestinal and hepatic heme oxygenase-1 at the mRNA and protein levels, circulating cytokines, as well as intestinal and mesenteric n-6 and n-3 fatty acid lipid mediators was compared 24 hours after LPS administration to examine its effects on the late phase of inflammation. Intestinal nuclear factor (erythroid-derived 2)-like 2 target enzyme heme oxygenase-1 was upregulated 8.42-fold at the mRNA level and 10.7-fold at the protein level by FA-supplemented diet. However, the FA-supplemented diet produced a unique type-2 plasma cytokine skew after LPS treatment. Plasma cytokines interleukin (IL)-4, IL-13, IL-9, and IL-10 were upregulated, reflecting the cytokine profile of reduced type 1 inflammation. A detailed lipidomic analysis of n-6 and n-3 fatty acid pro- and anti-inflammatory pathways in the mesentery and intestinal mucosa showed that FA diet was more similar to the control groups than to other LPS treated groups. In this study, we demonstrated that FA-supplemented diet produced a unique immunomodulatory effect not observed with sulforaphane in late phases of inflammation. These results support the hypothesis that FA may have role as a dietary immunosuppressant in patients with inflammatory gastrointestinal as well as other inflammatory disorders that may be alleviated by increasing consumption of carrot or other FA-containing food sources.
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Affiliation(s)
- Amanda Stefanson
- Department of Human Health and Nutritional Sciences, University of Guelph, 50 Stone Rd E, Guelph, Ontario, Canada N1G 2W1.
| | - Marica Bakovic
- Department of Human Health and Nutritional Sciences, University of Guelph, 50 Stone Rd E, Guelph, Ontario, Canada N1G 2W1.
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19
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Fu T, Mohan M, Brennan EP, Woodman OL, Godson C, Kantharidis P, Ritchie RH, Qin CX. Therapeutic Potential of Lipoxin A 4 in Chronic Inflammation: Focus on Cardiometabolic Disease. ACS Pharmacol Transl Sci 2020; 3:43-55. [PMID: 32259087 DOI: 10.1021/acsptsci.9b00097] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2019] [Indexed: 02/07/2023]
Abstract
Several studies have shown that failure to resolve inflammation may contribute to the progression of many chronic inflammatory disorders. It has been suggested targeting the resolution of inflammation might be a novel therapeutic approach for chronic inflammatory diseases, including inflammatory bowel disease, diabetic complications, and cardiometabolic disease. Lipoxins [LXs] are a class of endogenously generated mediators that promote the resolution of inflammation. Biological actions of LXs include inhibition of neutrophil infiltration, promotion of macrophage polarization, increase of macrophage efferocytosis, and restoration of tissue homeostasis. Recently, several studies have demonstrated that LXs and synthetic analogues protect tissues from acute and chronic inflammation. The mechanism includes down-regulation of pro-inflammatory cytokines and chemokines (e.g., interleukin-1β and tumor necrosis factor-α), inhibition of the activation of the master pro-inflammatory pathway (e.g., nuclear factor κ-light-chain-enhancer of activated B cells pathway) and increased release of the pro-resolving cytokines (e.g., interleukin-10). Three generations of LXs analogues are well described in the literature, and more recently a fourth generation has been generated that appears to show enhanced potency. In this review, we will briefly discuss the potential therapeutic opportunity provided by lipoxin A4 as a novel approach to treat chronic inflammatory disorders, focusing on cardiometabolic disease and the current drug development in this area.
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Affiliation(s)
- Ting Fu
- Heart Failure Pharmacology, Baker Heart and Diabetes Institute, Melbourne, Victoria 3004, Australia.,Department of Pharmacology and Therapeutics, University of Melbourne, Parkville, Victoria 3010, Australia
| | - Muthukumar Mohan
- Department of Diabetes, Central Clinical School, Monash University, Clayton, Victoria 3800, Australia
| | - Eoin P Brennan
- UCD Diabetes Complications Research Centre, UCD Conway Institute, UCD School of Medicine, University College Dublin, Dublin, 4, Ireland
| | - Owen L Woodman
- Heart Failure Pharmacology, Baker Heart and Diabetes Institute, Melbourne, Victoria 3004, Australia
| | - Catherine Godson
- UCD Diabetes Complications Research Centre, UCD Conway Institute, UCD School of Medicine, University College Dublin, Dublin, 4, Ireland
| | - Phillip Kantharidis
- Department of Diabetes, Central Clinical School, Monash University, Clayton, Victoria 3800, Australia
| | - Rebecca H Ritchie
- Department of Diabetes, Central Clinical School, Monash University, Clayton, Victoria 3800, Australia.,Heart Failure Pharmacology, Baker Heart and Diabetes Institute, Melbourne, Victoria 3004, Australia.,Department of Pharmacology and Therapeutics, University of Melbourne, Parkville, Victoria 3010, Australia.,Drug Discovery Biology, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, Victoria 3052, Australia
| | - Cheng Xue Qin
- Heart Failure Pharmacology, Baker Heart and Diabetes Institute, Melbourne, Victoria 3004, Australia.,Department of Pharmacology and Therapeutics, University of Melbourne, Parkville, Victoria 3010, Australia.,Department of Diabetes, Central Clinical School, Monash University, Clayton, Victoria 3800, Australia
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20
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Mucosal Metabolomic Profiling and Pathway Analysis Reveal the Metabolic Signature of Ulcerative Colitis. Metabolites 2019; 9:metabo9120291. [PMID: 31783598 PMCID: PMC6950742 DOI: 10.3390/metabo9120291] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2019] [Revised: 11/21/2019] [Accepted: 11/25/2019] [Indexed: 12/12/2022] Open
Abstract
The onset of ulcerative colitis (UC) is characterized by a dysregulated mucosal immune response triggered by several genetic and environmental factors in the context of host–microbe interaction. This complexity makes UC ideal for metabolomic studies to unravel the disease pathobiology and to improve the patient stratification strategies. This study aims to explore the mucosal metabolomic profile in UC patients, and to define the UC metabolic signature. Treatment- naïve UC patients (n = 18), UC patients in deep remission (n = 10), and healthy volunteers (n = 14) were recruited. Mucosa biopsies were collected during colonoscopies. Metabolomic analysis was performed by combined gas chromatography coupled to time-of-flight mass spectrometry (GC-TOF-MS) and ultra-high performance liquid chromatography coupled with mass spectrometry (UHPLC-MS). In total, 177 metabolites from 50 metabolic pathways were identified. The most prominent metabolome changes among the study groups were in lysophosphatidylcholine, acyl carnitine, and amino acid profiles. Several pathways were found perturbed according to the integrated pathway analysis. These pathways ranged from amino acid metabolism (such as tryptophan metabolism) to fatty acid metabolism, namely linoleic and butyrate. These metabolic changes during UC reflect the homeostatic disturbance in the gut, and highlight the importance of system biology approaches to identify key drivers of pathogenesis which prerequisite personalized medicine.
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21
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Diab J, Hansen T, Goll R, Stenlund H, Ahnlund M, Jensen E, Moritz T, Florholmen J, Forsdahl G. Lipidomics in Ulcerative Colitis Reveal Alteration in Mucosal Lipid Composition Associated With the Disease State. Inflamm Bowel Dis 2019; 25:1780-1787. [PMID: 31077307 DOI: 10.1093/ibd/izz098] [Citation(s) in RCA: 49] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/18/2019] [Indexed: 12/11/2022]
Abstract
BACKGROUND The onset of ulcerative colitis (UC) is associated with alterations in lipid metabolism and a disruption of the balance between pro- and anti-inflammatory molecules. Only a few studies describe the mucosal lipid biosignatures during active UC. Moreover, the dynamics of lipid metabolism in the remission state is poorly defined. Therefore, this study aims to characterize mucosal lipid profiles in treatment-naïve UC patients and deep remission UC patients compared with healthy subjects. METHODS Treatment-naïve UC patients (n = 21), UC patients in deep remission (n = 12), and healthy volunteers (n = 14) were recruited. The state of deep remission was defined by histological and immunological remission defined by a normalized TNF-α gene expression. Mucosa biopsies were collected by colonoscopy. Lipid analysis was performed by means of ultra-high performance liquid chromatography coupled with tandem mass spectrometry (UPLC-MS-MS). In total, 220 lipids from 11 lipid classes were identified. RESULTS The relative concentration of 122 and 36 lipids was altered in UC treatment-naïve patients and UC remission patients, respectively, compared with healthy controls. The highest number of significant variations was in the phosphatidylcholine (PC), ceramide (Cer), and sphingomyelin (SM) composition. Multivariate analysis revealed discrimination among the study groups based on the lipid profile. Furthermore, changes in phosphatidylethanolamine(38:3), Cer(d18:1/24:0), and Cer(d18:1/24:2) were most distinctive between the groups. CONCLUSION This study revealed a discriminant mucosal lipid composition pattern between treatment-naïve UC patients, deep remission UC patients, and healthy controls. We report several distinctive lipids, which might be involved in the inflammatory response in UC, and could reflect the disease state.
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Affiliation(s)
- Joseph Diab
- Natural Products and Medicinal Chemistry Research Group, Department of Pharmacy Faculty of Health Sciences, University of Tromsø-The Arctic University of Norway, Tromsø, Norway
| | - Terkel Hansen
- Natural Products and Medicinal Chemistry Research Group, Department of Pharmacy Faculty of Health Sciences, University of Tromsø-The Arctic University of Norway, Tromsø, Norway
| | - Rasmus Goll
- Research Group of Gastroenterology and Nutrition, Department of Clinical Medicine, Faculty of Health Sciences, University of Tromsø-The Arctic University of Norway, Tromsø, Norway.,Department of Medical Gastroenterology, University Hospital of North Norway, Tromsø, Norway
| | - Hans Stenlund
- Swedish Metabolomics Center, Swedish University of Agricultural Sciences, Umeå, Sweden
| | - Maria Ahnlund
- Swedish Metabolomics Center, Swedish University of Agricultural Sciences, Umeå, Sweden
| | - Einar Jensen
- Natural Products and Medicinal Chemistry Research Group, Department of Pharmacy Faculty of Health Sciences, University of Tromsø-The Arctic University of Norway, Tromsø, Norway
| | - Thomas Moritz
- Department of Medical Gastroenterology, University Hospital of North Norway, Tromsø, Norway
| | - Jon Florholmen
- Research Group of Gastroenterology and Nutrition, Department of Clinical Medicine, Faculty of Health Sciences, University of Tromsø-The Arctic University of Norway, Tromsø, Norway.,Department of Medical Gastroenterology, University Hospital of North Norway, Tromsø, Norway
| | - Guro Forsdahl
- Natural Products and Medicinal Chemistry Research Group, Department of Pharmacy Faculty of Health Sciences, University of Tromsø-The Arctic University of Norway, Tromsø, Norway
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22
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Barnig C, Bezema T, Calder PC, Charloux A, Frossard N, Garssen J, Haworth O, Dilevskaya K, Levi-Schaffer F, Lonsdorfer E, Wauben M, Kraneveld AD, Te Velde AA. Activation of Resolution Pathways to Prevent and Fight Chronic Inflammation: Lessons From Asthma and Inflammatory Bowel Disease. Front Immunol 2019; 10:1699. [PMID: 31396220 PMCID: PMC6664683 DOI: 10.3389/fimmu.2019.01699] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2018] [Accepted: 07/08/2019] [Indexed: 12/15/2022] Open
Abstract
Formerly considered as a passive process, the resolution of acute inflammation is now recognized as an active host response, with a cascade of coordinated cellular and molecular events that promotes termination of the inflammatory response and initiates tissue repair and healing. In a state of immune fitness, the resolution of inflammation is contained in time and space enabling the restoration of tissue homeostasis. There is increasing evidence that poor and/or inappropriate resolution of inflammation participates in the pathogenesis of chronic inflammatory diseases, extending in time the actions of pro-inflammatory mechanisms, and responsible in the long run for excessive tissue damage and pathology. In this review, we will focus on how resolution can be the target for therapy in "Th1/Th17 cell-driven" immune diseases and "Th2 cell-driven" immune diseases, with inflammatory bowel diseases (IBD) and asthma, as relevant examples. We describe the main cells and mediators stimulating the resolution of inflammation and discuss how pharmacological and dietary interventions but also life style factors, physical and psychological conditions, might influence the resolution phase. A better understanding of the impact of endogenous and exogenous factors on the resolution of inflammation might open a whole area in the development of personalized therapies in non-resolving chronic inflammatory diseases.
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Affiliation(s)
- Cindy Barnig
- Department of Chest Disease, Strasbourg University Hospital, Strasbourg, France.,Equipe d'accueil 3072, University of Strasbourg, Strasbourg, France
| | | | - Philip C Calder
- Human Development and Health, Faculty of Medicine, University of Southampton, Southampton, United Kingdom.,National Institute for Health Research Southampton Biomedical Research Centre, University Hospital Southampton NHS Foundation Trust and University of Southampton, Southampton, United Kingdom
| | - Anne Charloux
- Department of Chest Disease, Strasbourg University Hospital, Strasbourg, France.,Equipe d'accueil 3072, University of Strasbourg, Strasbourg, France
| | - Nelly Frossard
- UMR 7200 CNRS/Université de Strasbourg, Laboratoire d'Innovation Thérapeutique and LabEx MEDALIS, Faculté de Pharmacie, Strasbourg, France
| | - Johan Garssen
- Division of Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Faculty of Science, Utrecht University, Utrecht, Netherlands.,Nutricia Research, Utrecht, Netherlands
| | - Oliver Haworth
- Biochemical Pharmacology, William Harvey Research Institute, Bart's School of Medicine and Queen Mary University of London, London, United Kingdom
| | - Ksenia Dilevskaya
- Division of Pharmacology, Faculty of Science, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, Utrecht, Netherlands
| | - Francesca Levi-Schaffer
- Pharmacology and Experimental Therapeutics Unit, Faculty of Medicine, School of Pharmacy, Institute for Drug Research, The Hebrew University of Jerusalem, Jerusalem, Israel
| | - Evelyne Lonsdorfer
- Department of Chest Disease, Strasbourg University Hospital, Strasbourg, France.,Equipe d'accueil 3072, University of Strasbourg, Strasbourg, France
| | - Marca Wauben
- Department of Biochemistry & Cell Biology, Faculty of Veterinary Medicine, Utrecht University, Utrecht, Netherlands
| | - Aletta D Kraneveld
- Division of Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Faculty of Science, Utrecht University, Utrecht, Netherlands.,Institute for Risk Assessment Sciences, Faculty of Veterinary Medicine, Utrecht University, Utrecht, Netherlands
| | - Anje A Te Velde
- Amsterdam UMC, Tytgat Institute for Liver and Intestinal Research, University of Amsterdam, AGEM, Amsterdam, Netherlands
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23
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The Lipid Status in Patients with Ulcerative Colitis: Sphingolipids are Disease-Dependent Regulated. J Clin Med 2019; 8:jcm8070971. [PMID: 31277430 PMCID: PMC6678307 DOI: 10.3390/jcm8070971] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2019] [Revised: 06/13/2019] [Accepted: 07/02/2019] [Indexed: 02/06/2023] Open
Abstract
The factors that contribute to the development of ulcerative colitis (UC), are still not fully identified. Disruption of the colon barrier is one of the first events leading to invasion of bacteria and activation of the immune system. The colon barrier is strongly influenced by sphingolipids. Sphingolipids impact cell-cell contacts and function as second messengers. We collected blood and colon tissue samples from UC patients and healthy controls and investigated the sphingolipids and other lipids by LC-MS/MS or LC-QTOFMS. The expression of enzymes of the sphingolipid pathway were determined by RT-PCR and immunohistochemistry. In inflamed colon tissue, the de novo-synthesis of sphingolipids is reduced, whereas lactosylceramides are increased. Reduction of dihydroceramides was due to posttranslational inhibition rather than altered serine palmitoyl transferase or ceramide synthase expression in inflamed colon tissue. Furthermore, in human plasma from UC-patients, several sphinglipids change significantly in comparison to healthy controls. Beside sphingolipids free fatty acids, lysophosphatidylcholines and triglycerides changed significantly in the blood of colitis patients dependent on the disease severity. Our data indicate that detraction of the sphingolipid de novo synthesis in colon tissue might be an important trigger for UC. Several lipids changed significantly in the blood, which might be used as biomarkers for disease control; however, diet-related variabilities need to be considered.
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24
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Dong J, Liang W, Wang T, Sui J, Wang J, Deng Z, Chen D. Saponins regulate intestinal inflammation in colon cancer and IBD. Pharmacol Res 2019; 144:66-72. [PMID: 30959159 DOI: 10.1016/j.phrs.2019.04.010] [Citation(s) in RCA: 55] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/07/2018] [Revised: 04/04/2019] [Accepted: 04/04/2019] [Indexed: 01/30/2023]
Abstract
The saponins are natural surface-active glycosides which are the principal components of many popular herbal medicinal plants such as ginseng, astragalus, and bupleurum. Recent studies have suggested that saponins can exert strong anti-inflammatory effects and induce immune homeostasis in many diseases. Intestinal-inflammation-related digestive diseases include inflammatory bowel disease (IBD), irritable bowel syndrome, intestinal ischemia-reperfusion injury, necrotizing enterocolitis and radiation proctitis, as well as intestinal inflammation caused by nonsteroidal anti-inflammatory drugs. The pathogenesis of these diseases is poorly understood, and the patients with these diseases suffer from mental stress and physical pain, while their families (and society) experience heavy economic losses. Results from animal experiments suggest that saponins can suppress intestinal inflammation, promote intestinal barrier repair, maintain the diversity of the intestinal flora, and decrease the incidence rate of colon-inflammation-related colon cancer. In this review, we discuss new findings regarding the effects of saponins on intestinal inflammation and digestive diseases with intestinal inflammation. In addition, we provide a summary of the underlying mechanism for saponins-induced treatment on intestinal-inflammation-related disease.
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Affiliation(s)
- Jianyi Dong
- Dalian Medical University, Dalian 116044, China
| | - Wei Liang
- Dalian Medical University, Dalian 116044, China
| | | | - Jingru Sui
- Dalian Medical University, Dalian 116044, China
| | - Jingyu Wang
- laboratory Animal Center, Dalian Medical University, China.
| | - Zhaobin Deng
- Dalian University Affiliated Xinhua Hospital, China.
| | - Dapeng Chen
- Dalian Medical University, Dalian 116044, China.
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25
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Diab J, Al-Mahdi R, Gouveia-Figueira S, Hansen T, Jensen E, Goll R, Moritz T, Florholmen J, Forsdahl G. A Quantitative Analysis of Colonic Mucosal Oxylipins and Endocannabinoids in Treatment-Naïve and Deep Remission Ulcerative Colitis Patients and the Potential Link With Cytokine Gene Expression. Inflamm Bowel Dis 2019; 25:490-497. [PMID: 30476077 PMCID: PMC6383859 DOI: 10.1093/ibd/izy349] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
BACKGROUND The bioactive metabolites of omega 3 and omega 6 polyunsaturated fatty acids (ω-3 and ω-6) are known as oxylipins and endocannabinoids (eCBs). These lipid metabolites are involved in prompting and resolving the inflammatory response that leads to the onset of inflammatory bowel disease (IBD). This study aims to quantify these bioactive lipids in the colonic mucosa and to evaluate the potential link to cytokine gene expression during inflammatory events in ulcerative colitis (UC). METHODS Colon biopsies were taken from 15 treatment-naïve UC patients, 5 deep remission UC patients, and 10 healthy controls. Thirty-five oxylipins and 11 eCBs were quantified by means of ultra-high-performance liquid chromatography coupled with tandem mass spectrometry. Levels of mRNA for 10 cytokines were measured by reverse transcription polymerase chain reaction. RESULTS Levels of ω-6-related oxylipins were significantly elevated in treatment-naïve patients with respect to controls, whereas the levels of ω-3 eCBs were lower. 15S-Hydroxy-eicosatrienoic acid (15S-HETrE) was significantly upregulated in UC deep remission patients compared with controls. All investigated cytokines had significantly higher mRNA levels in the inflamed mucosa of treatment-naïve UC patients. Cytokine gene expression was positively correlated with several ω-6 arachidonic acid-related oxylipins, whereas negative correlation was found with lipoxin, prostacyclin, and the eCBs. CONCLUSIONS Increased levels of ω-6-related oxylipins and decreased levels of ω-3-related eCBs are associated with the debut of UC. This highlights the altered balance between pro- and anti-inflammatory lipid mediators in IBD and suggests potential targets for intervention.
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Affiliation(s)
- Joseph Diab
- Natural Products and Medicinal Chemistry Research Group, Department of Pharmacy, Faculty of Health Sciences, University of Tromsø–The Arctic University of Norway, Tromsø, Norway
| | - Rania Al-Mahdi
- Research Group of Gastroenterology and Nutrition, Department of Clinical Medicine, Faculty of Health Sciences, University of Tromsø–The Arctic University of Norway, Tromsø, Norway
| | | | - Terkel Hansen
- Natural Products and Medicinal Chemistry Research Group, Department of Pharmacy, Faculty of Health Sciences, University of Tromsø–The Arctic University of Norway, Tromsø, Norway
| | - Einar Jensen
- Natural Products and Medicinal Chemistry Research Group, Department of Pharmacy, Faculty of Health Sciences, University of Tromsø–The Arctic University of Norway, Tromsø, Norway
| | - Rasmus Goll
- Research Group of Gastroenterology and Nutrition, Department of Clinical Medicine, Faculty of Health Sciences, University of Tromsø–The Arctic University of Norway, Tromsø, Norway
| | - Thomas Moritz
- Swedish Metabolomics Center, Swedish University of Agricultural Sciences, Umeå, Sweden
| | - Jon Florholmen
- Research Group of Gastroenterology and Nutrition, Department of Clinical Medicine, Faculty of Health Sciences, University of Tromsø–The Arctic University of Norway, Tromsø, Norway
| | - Guro Forsdahl
- Natural Products and Medicinal Chemistry Research Group, Department of Pharmacy, Faculty of Health Sciences, University of Tromsø–The Arctic University of Norway, Tromsø, Norway
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Rindflesch TC, Blake CL, Cairelli MJ, Fiszman M, Zeiss CJ, Kilicoglu H. Investigating the role of interleukin-1 beta and glutamate in inflammatory bowel disease and epilepsy using discovery browsing. J Biomed Semantics 2018; 9:25. [PMID: 30587224 PMCID: PMC6307110 DOI: 10.1186/s13326-018-0192-y] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2018] [Accepted: 11/16/2018] [Indexed: 12/03/2022] Open
Abstract
BACKGROUND Structured electronic health records are a rich resource for identifying novel correlations, such as co-morbidities and adverse drug reactions. For drug development and better understanding of biomedical phenomena, such correlations need to be supported by viable hypotheses about the mechanisms involved, which can then form the basis of experimental investigations. METHODS In this study, we demonstrate the use of discovery browsing, a literature-based discovery method, to generate plausible hypotheses elucidating correlations identified from structured clinical data. The method is supported by Semantic MEDLINE web application, which pinpoints interesting concepts and relevant MEDLINE citations, which are used to build a coherent hypothesis. RESULTS Discovery browsing revealed a plausible explanation for the correlation between epilepsy and inflammatory bowel disease that was found in an earlier population study. The generated hypothesis involves interleukin-1 beta (IL-1 beta) and glutamate, and suggests that IL-1 beta influence on glutamate levels is involved in the etiology of both epilepsy and inflammatory bowel disease. CONCLUSIONS The approach presented in this paper can supplement population-based correlation studies by enabling the scientist to identify literature that may justify the novel patterns identified in such studies and can underpin basic biomedical research that can lead to improved treatments and better healthcare outcomes.
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Affiliation(s)
| | - Catherine L. Blake
- School of Information Sciences, University of Illinois at Urbana-Champaign, 501 E Daniel Street, Champaign, 61820 IL USA
| | - Michael J. Cairelli
- Kaiser Permanente Southern California, 11975 El Camino Real, San Diego, CA, 92103 USA
| | | | - Caroline J. Zeiss
- Department of Comparative Medicine, Yale School of Medicine, New Haven, CT, 06520 USA
| | - Halil Kilicoglu
- Lister Hill National Center for Biomedical Communications, U.S. National Library of Medicine, 8600 Rockville Pike, Bethesda, MD, USA
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Gao Y, Bai D, Zhao Y, Zhu Q, Zhou Y, Li Z, Lu N. LL202 ameliorates colitis against oxidative stress of macrophage by activation of the Nrf2/HO‐1 pathway. J Cell Physiol 2018; 234:10625-10639. [DOI: 10.1002/jcp.27739] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2017] [Accepted: 10/18/2018] [Indexed: 12/14/2022]
Affiliation(s)
- Yuan Gao
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Carcinogenesis and Intervention Department of Basic Medicine School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University Nanjing China
| | - Dongsheng Bai
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Carcinogenesis and Intervention Department of Basic Medicine School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University Nanjing China
| | - Yue Zhao
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Carcinogenesis and Intervention Department of Basic Medicine School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University Nanjing China
| | - Qin Zhu
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Carcinogenesis and Intervention Department of Basic Medicine School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University Nanjing China
| | - Yihui Zhou
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Carcinogenesis and Intervention Department of Basic Medicine School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University Nanjing China
| | - Zhiyu Li
- Department of Medicinal Chemistry China Pharmaceutical University Nanjing China
| | - Na Lu
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Carcinogenesis and Intervention Department of Basic Medicine School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University Nanjing China
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Martinez RM, Fattori V, Saito P, Melo CBP, Borghi SM, Pinto IC, Bussmann AJC, Baracat MM, Georgetti SR, Verri WA, Casagrande R. Lipoxin A4 inhibits UV radiation-induced skin inflammation and oxidative stress in mice. J Dermatol Sci 2018; 91:S0923-1811(18)30201-9. [PMID: 29731194 DOI: 10.1016/j.jdermsci.2018.04.014] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2017] [Revised: 04/18/2018] [Accepted: 04/20/2018] [Indexed: 12/22/2022]
Abstract
BACKGROUND Lipoxin A4 (LXA4) is a metabolic product of arachidonic acid. Despite potent anti-inflammatory and pro-resolution activities, it remains to be determined if LXA4 has effect on ultraviolet (UV) radiation-induced skin inflammation. OBJECTIVE To investigate the effects of systemic administration with LXA4 on UV radiation-induced inflammation and oxidative damage in the skin of mice. METHODS Varied parameters of inflammation and oxidative stress in the skin of mice were evaluated after UV radiation (4.14 J/cm2). RESULTS Pretreatment with LXA4 significantly inhibited UV radiation-induced skin edema and myeloperoxidase activity. LXA4 efficacy was enhanced by increasing the time of pre-treatment to up to 72 h. LXA4 reduced UV radiation-induced skin edema, neutrophil recruitment (myeloperoxidase activity and LysM-eGFP+ cells), MMP-9 activity, deposition of collagen fibers, epidermal thickness, sunburn cell counts, and production of pro-inflammatory cytokines (TNF-α, IL-1β, IL-6 and IL-33). Depending on the time point, LXA4 increased the levels of anti-inflammatory cytokines (TGF-β and IL-10). LXA4 significantly attenuated UV radiation-induced oxidative damage returning the oxidative status to baseline levels in parameters such as ferric reducing ability, scavenging of free radicals, GSH levels, catalase activity and superoxide anion production. LXA4 also reduced UV radiation-induced gp91phox [nicotinamide adenine dinucleotide phosphate (NADPH) oxidase 2 (NOX2) subunit] mRNA expression and enhanced nuclear factor erythroid 2-related factor 2 (Nrf2) and its downstream target enzyme nicotinamide adenine dinucleotide (phosphate) quinone oxidoreductase (Nqo1) mRNA expression. CONCLUSION LXA4 inhibited UV radiation-induced skin inflammation by diminishing pro-inflammatory cytokine production and oxidative stress as well as inducing anti-inflammatory cytokines and Nrf2.
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Affiliation(s)
- R M Martinez
- Departamento de Ciências Farmacêuticas, Universidade Estadual de Londrina-UEL, Hospital Universitário, Avenida Robert Koch, 60, 86038-350 Londrina, Paraná, Brasil
| | - V Fattori
- Departamento de Patologia, Universidade Estadual de Londrina-UEL, Rodovia Celso Garcia Cid, Km 380, PR445, Cx. Postal 10.011, 86057-970 Londrina, Paraná, Brasil
| | - P Saito
- Departamento de Ciências Farmacêuticas, Universidade Estadual de Londrina-UEL, Hospital Universitário, Avenida Robert Koch, 60, 86038-350 Londrina, Paraná, Brasil
| | - C B P Melo
- Departamento de Ciências Farmacêuticas, Universidade Estadual de Londrina-UEL, Hospital Universitário, Avenida Robert Koch, 60, 86038-350 Londrina, Paraná, Brasil
| | - S M Borghi
- Departamento de Patologia, Universidade Estadual de Londrina-UEL, Rodovia Celso Garcia Cid, Km 380, PR445, Cx. Postal 10.011, 86057-970 Londrina, Paraná, Brasil
| | - I C Pinto
- Departamento de Ciências Farmacêuticas, Universidade Estadual de Londrina-UEL, Hospital Universitário, Avenida Robert Koch, 60, 86038-350 Londrina, Paraná, Brasil
| | - A J C Bussmann
- Departamento de Patologia, Universidade Estadual de Londrina-UEL, Rodovia Celso Garcia Cid, Km 380, PR445, Cx. Postal 10.011, 86057-970 Londrina, Paraná, Brasil
| | - M M Baracat
- Departamento de Ciências Farmacêuticas, Universidade Estadual de Londrina-UEL, Hospital Universitário, Avenida Robert Koch, 60, 86038-350 Londrina, Paraná, Brasil
| | - S R Georgetti
- Departamento de Ciências Farmacêuticas, Universidade Estadual de Londrina-UEL, Hospital Universitário, Avenida Robert Koch, 60, 86038-350 Londrina, Paraná, Brasil
| | - W A Verri
- Departamento de Patologia, Universidade Estadual de Londrina-UEL, Rodovia Celso Garcia Cid, Km 380, PR445, Cx. Postal 10.011, 86057-970 Londrina, Paraná, Brasil.
| | - R Casagrande
- Departamento de Ciências Farmacêuticas, Universidade Estadual de Londrina-UEL, Hospital Universitário, Avenida Robert Koch, 60, 86038-350 Londrina, Paraná, Brasil.
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Ungaro F, Tacconi C, Massimino L, Corsetto PA, Correale C, Fonteyne P, Piontini A, Garzarelli V, Calcaterra F, Della Bella S, Spinelli A, Carvello M, Rizzo AM, Vetrano S, Petti L, Fiorino G, Furfaro F, Mavilio D, Maddipati KR, Malesci A, Peyrin-Biroulet L, D'Alessio S, Danese S. MFSD2A Promotes Endothelial Generation of Inflammation-Resolving Lipid Mediators and Reduces Colitis in Mice. Gastroenterology 2017; 153:1363-1377.e6. [PMID: 28827082 DOI: 10.1053/j.gastro.2017.07.048] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/01/2017] [Revised: 07/27/2017] [Accepted: 07/30/2017] [Indexed: 12/24/2022]
Abstract
BACKGROUND & AIMS Alterations in signaling pathways that regulate resolution of inflammation (resolving pathways) contribute to pathogenesis of ulcerative colitis (UC). The resolution process is regulated by lipid mediators, such as those derived from the ω-3 docosahexaenoic acid (DHA), whose esterified form is transported by the major facilitator superfamily domain containing 2A (MFSD2A) through the endothelium of brain, retina, and placenta. We investigated if and how MFSD2A regulates lipid metabolism of gut endothelial cells to promote resolution of intestinal inflammation. METHODS We performed lipidomic and functional analyses of MFSD2A in mucosal biopsies and primary human intestinal microvascular endothelial cells (HIMECs) isolated from surgical specimens from patients with active, resolving UC and healthy individuals without UC (controls). MFSD2A was knocked down in HIMECs with small hairpin RNAs or overexpressed from a lentiviral vector. Human circulating endothelial progenitor cells that overexpress MFSD2A were transferred to CD1 nude mice with dextran sodium sulfate-induced colitis, with or without oral administration of DHA. RESULTS Colonic biopsies from patients with UC had reduced levels of inflammation-resolving DHA-derived epoxy metabolites compared to healthy colon tissues or tissues with resolution of inflammation. Production of these metabolites by HIMECs required MFSD2A, which is required for DHA retention and metabolism in the gut vasculature. In mice with colitis, transplanted endothelial progenitor cells that overexpressed MFSD2A not only localized to the inflamed mucosa but also restored the ability of the endothelium to resolve intestinal inflammation, compared with mice with colitis that did not receive MFSD2A-overexpressing endothelial progenitors. CONCLUSIONS Levels of DHA-derived epoxides are lower in colon tissues from patients with UC than healthy and resolving mucosa. Production of these metabolites by gut endothelium requires MFSD2A; endothelial progenitor cells that overexpress MFSD2A reduce colitis in mice. This pathway might be induced to resolve intestinal inflammation in patients with colitis.
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Affiliation(s)
- Federica Ungaro
- IBD Center, Laboratory of Gastrointestinal Immunopathology, Humanitas Clinical and Research Center, Rozzano, Milan, Italy; Department of Biomedical Sciences, Humanitas University, Rozzano, Milan, Italy
| | - Carlotta Tacconi
- Institute of Pharmaceutical Sciences, Pharmacogenomics, Swiss Federal Institute of Technology (ETH), Zurich, Switzerland
| | - Luca Massimino
- School of Medicine and Surgery, University of Milan-Bicocca, Milan, Italy
| | | | - Carmen Correale
- IBD Center, Laboratory of Gastrointestinal Immunopathology, Humanitas Clinical and Research Center, Rozzano, Milan, Italy
| | - Philippe Fonteyne
- IBD Center, Laboratory of Gastrointestinal Immunopathology, Humanitas Clinical and Research Center, Rozzano, Milan, Italy
| | - Andrea Piontini
- IBD Center, Laboratory of Gastrointestinal Immunopathology, Humanitas Clinical and Research Center, Rozzano, Milan, Italy; Department of Biomedical Sciences, Humanitas University, Rozzano, Milan, Italy
| | - Valeria Garzarelli
- IBD Center, Laboratory of Gastrointestinal Immunopathology, Humanitas Clinical and Research Center, Rozzano, Milan, Italy
| | - Francesca Calcaterra
- Laboratory of Clinical and Experimental Immunology, Humanitas Clinical and Research Center, Rozzano, Milan, Italy; Medical Biotechnologies and Translational Medicine, University of Milan, Milan, Italy
| | - Silvia Della Bella
- Laboratory of Clinical and Experimental Immunology, Humanitas Clinical and Research Center, Rozzano, Milan, Italy; Medical Biotechnologies and Translational Medicine, University of Milan, Milan, Italy
| | - Antonino Spinelli
- Department of Biomedical Sciences, Humanitas University, Rozzano, Milan, Italy; Colon and Rectal Surgery Unit, Humanitas Clinical and Research Center, Rozzano, Milan, Italy
| | - Michele Carvello
- Colon and Rectal Surgery Unit, Humanitas Clinical and Research Center, Rozzano, Milan, Italy
| | - Angela Maria Rizzo
- Departments of Pharmacology and Biomolecular Science, University of Milan, Milan, Italy
| | - Stefania Vetrano
- IBD Center, Laboratory of Gastrointestinal Immunopathology, Humanitas Clinical and Research Center, Rozzano, Milan, Italy; Department of Biomedical Sciences, Humanitas University, Rozzano, Milan, Italy
| | - Luciana Petti
- IBD Center, Laboratory of Gastrointestinal Immunopathology, Humanitas Clinical and Research Center, Rozzano, Milan, Italy; Medical Biotechnologies and Translational Medicine, University of Milan, Milan, Italy
| | - Gionata Fiorino
- IBD Center, Laboratory of Gastrointestinal Immunopathology, Humanitas Clinical and Research Center, Rozzano, Milan, Italy
| | - Federica Furfaro
- IBD Center, Laboratory of Gastrointestinal Immunopathology, Humanitas Clinical and Research Center, Rozzano, Milan, Italy
| | - Domenico Mavilio
- Laboratory of Clinical and Experimental Immunology, Humanitas Clinical and Research Center, Rozzano, Milan, Italy; Medical Biotechnologies and Translational Medicine, University of Milan, Milan, Italy
| | - Krishna Rao Maddipati
- Department of Pathology, Lipdomics Core Facility, Wayne State University, Detroit, Michigan
| | - Alberto Malesci
- Medical Biotechnologies and Translational Medicine, University of Milan, Milan, Italy; Department of Gastroenterology, Humanitas Clinical and Research Center, Rozzano, Milan, Italy
| | - Laurent Peyrin-Biroulet
- Institut National de la Santé et de la Recherche Médicale U954 and Department of Gastroenterology, Nancy University Hospital, Lorraine University, France
| | - Silvia D'Alessio
- IBD Center, Laboratory of Gastrointestinal Immunopathology, Humanitas Clinical and Research Center, Rozzano, Milan, Italy; Medical Biotechnologies and Translational Medicine, University of Milan, Milan, Italy.
| | - Silvio Danese
- IBD Center, Laboratory of Gastrointestinal Immunopathology, Humanitas Clinical and Research Center, Rozzano, Milan, Italy; Department of Biomedical Sciences, Humanitas University, Rozzano, Milan, Italy.
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Ungaro F, Rubbino F, Danese S, D'Alessio S. Actors and Factors in the Resolution of Intestinal Inflammation: Lipid Mediators As a New Approach to Therapy in Inflammatory Bowel Diseases. Front Immunol 2017; 8:1331. [PMID: 29109724 PMCID: PMC5660440 DOI: 10.3389/fimmu.2017.01331] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2017] [Accepted: 09/29/2017] [Indexed: 12/15/2022] Open
Abstract
In the last few decades, the pathogenesis of inflammatory bowel disease (IBD) in genetically predisposed subjects susceptible to specific environmental factors has been attributed to disturbance of both the immune and non-immune system and/or to the imbalanced interactions with microbes. However, increasing evidences support the idea that defects in pro-resolving pathways might strongly contribute to IBD onset. The resolution of inflammation is now recognized as a dynamic event coordinated by specialized pro-resolving lipid mediators (LMs), which dampen inflammation-sustaining events, such as angiogenesis, release of pro-inflammatory cytokines, clearance of apoptotic cells, and microorganisms. Among these pro-resolving molecules, those derived from essential polyunsaturated fatty acids (PUFAs) have been shown to induce favorable effects on a plethora of human inflammatory disorders, including IBD. Here, we offer a summary of mechanisms involving both cellular and molecular components of the immune response and underlying the anti-inflammatory and pro-resolving properties of PUFAs and their derivatives in the gut, focusing on both ω-3 and ω-6 LMs. These fatty acids may influence IBD progression by: reducing neutrophil transmigration across the intestinal vasculature and the epithelium, preventing the release of pro-inflammatory cytokines and the up-regulation of adhesion molecules, and finally by promoting the production of other pro-resolving molecules. We also discuss the numerous attempts in using pro-resolving PUFAs to ameliorate intestinal inflammation, both in patients with IBD and mouse models. Although their effects in reducing inflammation is incontestable, results from previous works describing the effects of PUFA administration to prevent or treat IBD are controversial. Therefore, more efforts are needed not only to identify and explain the physiological functions of PUFAs in the gut, but also to unveil novel biosynthetic pathways of these pro-resolving LMs that may be dysregulated in these gut-related disorders. We suppose that either PUFAs or new medications specifically promoting resolution-regulating mediators and pathways will be much better tolerated by patients with IBD, with the advantage of avoiding immune suppression.
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Affiliation(s)
- Federica Ungaro
- Department of Biomedical Sciences, Humanitas University, Rozzano, Italy
| | - Federica Rubbino
- Department of Biomedical Sciences, Humanitas University, Rozzano, Italy
| | - Silvio Danese
- Department of Biomedical Sciences, Humanitas University, Rozzano, Italy.,Laboratory of Gastrointestinal Immunopathology, Humanitas Clinical and Research Center, IBD Center, Rozzano, Italy
| | - Silvia D'Alessio
- Department of Biomedical Sciences, Humanitas University, Rozzano, Italy
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Hwang YH, Kim DG, Li W, Yang HJ, Yim NH, Ma JY. Anti-inflammatory effects of Forsythia suspensa in dextran sulfate sodium-induced colitis. JOURNAL OF ETHNOPHARMACOLOGY 2017; 206:73-77. [PMID: 28502906 DOI: 10.1016/j.jep.2017.05.011] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2017] [Revised: 04/25/2017] [Accepted: 05/10/2017] [Indexed: 06/07/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Forsythia suspensa Fructus (FS) is used to treat various inflammatory disorders in traditional Oriental medicine, including gastrointestinal diseases, but its therapeutic potential in ulcerative colitis is unclear. Thus, we investigated any potential therapeutic effects of FS against intestinal inflammation and the bioactive constituents in FS. MATERIALS AND METHODS After the induction of colitis using 3% dextran sulfate sodium, FS (100mg/kg/day) was administered orally during the experimental period. We evaluated body weight, bloody diarrhea, colon length, and pro-inflammatory cytokine levels. Subsequently, the bioactive constituents of FS were identified using UPLC/MS/MS. RESULTS FS significantly decreased the body weight loss, colon length shortening, and tumor necrosis factor-α and interleukin-6 elevations induced by colitis compared with the negative control (P < 0.05). Moreover, FS improved the colitis-induced histopathological damage to the colon, including epithelial necrosis, infiltration of inflammatory cells, ulceration, and submucosal edema. In phytochemical analyses, 7 flavonoids, 9 lignans, 13 phenolics, and 2 triterpenes were identified by comparison with the retention times and mass fragmentations of authentic standards. CONCLUSIONS We demonstrated beneficial effects of FS and its constituents, suggesting their potential for treatment of intestinal inflammation. These data could provide useful information for managing ulcerative colitis.
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Affiliation(s)
- Youn-Hwan Hwang
- KM Application Center, Korea Institute of Oriental Medicine, South Korea.
| | - Dong-Gun Kim
- KM Application Center, Korea Institute of Oriental Medicine, South Korea.
| | - Wei Li
- KM Application Center, Korea Institute of Oriental Medicine, South Korea.
| | - Hye Jin Yang
- KM Application Center, Korea Institute of Oriental Medicine, South Korea.
| | - Nam-Hui Yim
- KM Application Center, Korea Institute of Oriental Medicine, South Korea.
| | - Jin Yeul Ma
- KM Application Center, Korea Institute of Oriental Medicine, South Korea.
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Sommakia S, Baker OJ. Regulation of inflammation by lipid mediators in oral diseases. Oral Dis 2017; 23:576-597. [PMID: 27426637 PMCID: PMC5243936 DOI: 10.1111/odi.12544] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2016] [Revised: 07/08/2016] [Accepted: 07/13/2016] [Indexed: 02/06/2023]
Abstract
Lipid mediators (LM) of inflammation are a class of compounds derived from ω-3 and ω-6 fatty acids that play a wide role in modulating inflammatory responses. Some LM possess pro-inflammatory properties, while others possess proresolving characteristics, and the class switch from pro-inflammatory to proresolving is crucial for tissue homeostasis. In this article, we review the major classes of LM, focusing on their biosynthesis and signaling pathways, and their role in systemic and, especially, oral health and disease. We discuss the detection of these LM in various body fluids, focusing on diagnostic and therapeutic applications. We also present data showing gender-related differences in salivary LM levels in healthy controls, leading to a hypothesis on the etiology of inflammatory diseases, particularly Sjögren's syndrome. We conclude by enumerating open areas of research where further investigation of LM is likely to result in therapeutic and diagnostic advances.
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Affiliation(s)
- Salah Sommakia
- School of Dentistry, The University of Utah, Salt Lake City, UT, USA
| | - Olga J. Baker
- School of Dentistry, The University of Utah, Salt Lake City, UT, USA
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Menter DG, Kopetz S, Hawk E, Sood AK, Loree JM, Gresele P, Honn KV. Platelet "first responders" in wound response, cancer, and metastasis. Cancer Metastasis Rev 2017; 36:199-213. [PMID: 28730545 PMCID: PMC5709140 DOI: 10.1007/s10555-017-9682-0] [Citation(s) in RCA: 170] [Impact Index Per Article: 24.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Platelets serve as "first responders" during normal wounding and homeostasis. Arising from bone marrow stem cell lineage megakaryocytes, anucleate platelets can influence inflammation and immune regulation. Biophysically, platelets are optimized due to size and discoid morphology to distribute near vessel walls, monitor vascular integrity, and initiate quick responses to vascular lesions. Adhesion receptors linked to a highly reactive filopodia-generating cytoskeleton maximizes their vascular surface contact allowing rapid response capabilities. Functionally, platelets normally initiate rapid clotting, vasoconstriction, inflammation, and wound biology that leads to sterilization, tissue repair, and resolution. Platelets also are among the first to sense, phagocytize, decorate, or react to pathogens in the circulation. These platelet first responder properties are commandeered during chronic inflammation, cancer progression, and metastasis. Leaky or inflammatory reaction blood vessel genesis during carcinogenesis provides opportunities for platelet invasion into tumors. Cancer is thought of as a non-healing or chronic wound that can be actively aided by platelet mitogenic properties to stimulate tumor growth. This growth ultimately outstrips circulatory support leads to angiogenesis and intravasation of tumor cells into the blood stream. Circulating tumor cells reengage additional platelets, which facilitates tumor cell adhesion, arrest and extravasation, and metastasis. This process, along with the hypercoagulable states associated with malignancy, is amplified by IL6 production in tumors that stimulate liver thrombopoietin production and elevates circulating platelet numbers by thrombopoiesis in the bone marrow. These complex interactions and the "first responder" role of platelets during diverse physiologic stresses provide a useful therapeutic target that deserves further exploration.
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Affiliation(s)
- David G Menter
- Department of Gastrointestinal Medical Oncology, M. D. Anderson Cancer Center, Room#: FC10.3004, 1515 Holcombe Boulevard--Unit 0426, Houston, TX, 77030, USA.
| | - Scott Kopetz
- Department of Gastrointestinal Medical Oncology, M. D. Anderson Cancer Center, Room#: FC10.3004, 1515 Holcombe Boulevard--Unit 0426, Houston, TX, 77030, USA
| | - Ernest Hawk
- Office of the Vice President Cancer Prevention & Population Science, M. D. Anderson Cancer Center, Unit 1370, 1515 Holcombe Boulevard, Houston, TX, 77054, USA
| | - Anil K Sood
- Gynocologic Oncology & Reproductive Medicine, M. D. Anderson Cancer Center, Unit 1362, 1515 Holcombe Boulevard, Houston, TX, 77054, USA
- Department of Cancer Biology, M. D. Anderson Cancer Center, Unit 1362, 1515 Holcombe Boulevard, Houston, TX, 77054, USA
- Center for RNA Interference and Non-Coding RNA The University of Texas MD Anderson Cancer Center, Houston, TX, 77054, USA
| | - Jonathan M Loree
- Department of Gastrointestinal Medical Oncology, M. D. Anderson Cancer Center, Room#: FC10.3004, 1515 Holcombe Boulevard--Unit 0426, Houston, TX, 77030, USA
| | - Paolo Gresele
- Department of Medicine, Section of Internal and Cardiovascular Medicine, University of Perugia, Via E. Dal Pozzo, 06126, Perugia, Italy
| | - Kenneth V Honn
- Bioactive Lipids Research Program, Department of Pathology, Wayne State University, 431 Chemistry Bldg, 5101 Cass Avenue, Detroit, MI, 48202, USA
- Department of Pathology, Wayne State University, 431 Chemistry Bldg, 5101 Cass Avenue, Detroit, MI, 48202, USA
- Cancer Biology Division, Wayne State University School of Medicine, 431 Chemistry Bldg, 5101 Cass Avenue, Detroit, MI, 48202, USA
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Nemoto M, Kuda T, Eda M, Yamakawa H, Takahashi H, Kimura B. Protective Effects of Mekabu Aqueous Solution Fermented by Lactobacillus plantarum Sanriku-SU7 on Human Enterocyte-Like HT-29-luc Cells and DSS-Induced Murine IBD Model. Probiotics Antimicrob Proteins 2017; 9:48-55. [PMID: 27535691 DOI: 10.1007/s12602-016-9226-x] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Most wakame Undaria pinnatifida, a brown algae, products are made from the frond portion. In this study, the polysaccharide content and antioxidant property of aqueous extract solutions (AESs) of the four parts (frond: wakame, stem of the frond: kuki-wakame, sporophyll: mekabu, and kuki-mekabu) of wakame were investigated. Polysaccharide content was high in both the wakame and mekabu. Superoxide anion (O2-) radical-scavenging capacities were high in the mekabu. These AESs could be fermented by Lactobacillus plantarum Sanriku-SU7. The O2- radical-scavenging activity of the kuki-wakame, mekabu, and kuki-mekabu were increased by the fermentation. Fermented mekabu clearly showed a protective effect on human enterocyte-like HT-29-luc cells and in a mouse model of dextran sodium sulphate-induced inflammatory bowel disease (IBD). These results suggest that the mekabu fermented by L. plantarum Sanriku-SU7 has anti-IBD effect related to O2- radical-scavenging.
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Affiliation(s)
- Maki Nemoto
- Department of Food Science and Technology, Tokyo University of Marine Science and Technology, 4-5-7 Konan, Minato-City, Tokyo, 108-8477, Japan
| | - Takashi Kuda
- Department of Food Science and Technology, Tokyo University of Marine Science and Technology, 4-5-7 Konan, Minato-City, Tokyo, 108-8477, Japan.
| | - Mika Eda
- Department of Food Science and Technology, Tokyo University of Marine Science and Technology, 4-5-7 Konan, Minato-City, Tokyo, 108-8477, Japan
| | - Hiroshi Yamakawa
- Office of Liaison and Cooperative Research, Tokyo University of Marine Science and Technology, 4-5-7 Konan, Minato-City, Tokyo, 108-8477, Japan
| | - Hajime Takahashi
- Department of Food Science and Technology, Tokyo University of Marine Science and Technology, 4-5-7 Konan, Minato-City, Tokyo, 108-8477, Japan
| | - Bon Kimura
- Department of Food Science and Technology, Tokyo University of Marine Science and Technology, 4-5-7 Konan, Minato-City, Tokyo, 108-8477, Japan
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Anti-inflammatory effects of an oxylipin-containing lyophilised biomass from a microalga in a murine recurrent colitis model. Br J Nutr 2016; 116:2044-2052. [PMID: 28025954 DOI: 10.1017/s0007114516004189] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Diet and nutritional factors have emerged as possible interventions for inflammatory bowel diseases (IBD), which are characterised by chronic uncontrolled inflammation of the intestinal mucosa. Microalgal species are a promising source of n-3 PUFA and derived oxylipins, which are lipid mediators with a key role in the resolution of inflammation. The aim of the present study was to investigate the effects of an oxylipin-containing lyophilised biomass from Chlamydomonas debaryana on a recurrent 2,4,6-trinitrobenzenesulfonic acid (TNBS)-induced colitis mice model. Moderate chronic inflammation of the colon was induced in BALB/c mice by weekly intracolonic instillations of low dose of TNBS. Administration of the lyophilised microalgal biomass started 2 weeks before colitis induction and was continued throughout colitis development. Mice were killed 48 h after the last TNBS challenge. Oral administration of the microalgal biomass reduced TNBS-induced intestinal inflammation, evidenced by an inhibition of body weight loss, an improvement in colon morphology and a decrease in pro-inflammatory cytokines TNF-α, IL-1β, IL-6 and IL-17. This product also down-regulated colonic expressions of inducible nitric oxide, cyclo-oxygenase 2 and NF-κB, as well as increased PPAR-γ. In addition, lyophilised microalgal biomass up-regulated the expressions of the antioxidant transcription factor nuclear factor E2-related factor 2 and the target gene heme oxygenase 1. This study describes for the first time the prophylactic effects of an oxylipin-containing lyophilised microalgae biomass from C. debaryana in the acute phase of a recurrent TNBS-induced colitis model in mice. These findings suggest the potential use of this microalga, or derived oxylipins, as a nutraceutical in the treatment of IBD.
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Fei L, Xu K. Zhikang Capsule ameliorates dextran sodium sulfate-induced colitis by inhibition of inflammation, apoptosis, oxidative stress and MyD88-dependent TLR4 signaling pathway. JOURNAL OF ETHNOPHARMACOLOGY 2016; 192:236-247. [PMID: 27452656 DOI: 10.1016/j.jep.2016.07.055] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2016] [Revised: 07/17/2016] [Accepted: 07/20/2016] [Indexed: 06/06/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Zhikang Capsule (ZKC) is a traditional Chinese medicine (TCM) modified from classic formulas Qi-Li-San (an ancient formula dating to Qing Dynasty) and Fu-Jin-Sheng-Ji-San (written into The Golden Mirror of Medicine). ZKC contains 14 kinds of materials and has been widely used for the clinical therapy of inflammatory bowel diseases (IBD) for a long time. However, the therapeutic mechanisms of ZKC are still unclear. AIM OF THE STUDY To determine the protective effect of ZKC on dextran sodium sulfate (DSS)-induced colitis and explore the underlying mechanisms. MATERIALS AND METHODS C57BL/6 mice were fed with 3% DSS in drinking water for one week to induce experimental colitis. They were randomly assigned to six groups according to the treatment conditions. The histological changes of colon tissues were observed by hematoxylin and eosin (H&E) staining. The serum concentration of pro-inflammatory cytokines (TNF-α, IFN-γ, IL-1β, and IL-12) and anti-inflammatory mediators (IL-4 and IL-10) was detected by enzyme-linked immune sorbent assays (ELISAs). The production of MPO, SOD, MDA, NO, and caspase-3 was assessed by biochemical assay kits. The expression of iNOS, ICAM-1, and NF-ΚB was evaluated by immunohistochemistry staining. The levels of TLR4, MyD88, and TRAF6 were determined by western blot. RESULTS Histologic analysis exhibited that ZKC alleviated the inflammation, loss of goblet cells, and submucosal edema induced by DSS. ZKC significantly suppressed the pro-inflammatory cytokines and promoted the anti-inflammatory mediators. The antioxidation of ZKC was indicated by increased activity of SOD and reduced production of MDA, NO, and iNOS in ZKC-treated mice. Furthermore, ZKC repressed the colonic expression of caspase-3 and the activity of the MyD88-dependent TLR4 signaling pathway. CONCLUSIONS This research demonstrated the protective effect of ZKC on DSS-induced colitis. For the first time, we identified four therapeutic mechanisms of ZKC, including effective inhibition of the inflammatory responses, significant alleviation of intestinal epithelium apoptosis, considerable prevention of oxidative stress, and selective down-regulation of the MyD88-dependent TLR4 signaling pathway. With high therapeutic effects and low toxic effects, ZKC exhibits great superiority over western medicines in IBD treatment.
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Affiliation(s)
- Liang Fei
- Division of Gastroenterology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277Jiefang Road, Wuhan 430022, PR China.
| | - Keshu Xu
- Division of Gastroenterology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277Jiefang Road, Wuhan 430022, PR China.
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