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Yang WH, Aziz PV, Heithoff DM, Kim Y, Ko JY, Cho JW, Mahan MJ, Sperandio M, Marth JD. Innate mechanism of mucosal barrier erosion in the pathogenesis of acquired colitis. iScience 2023; 26:107883. [PMID: 37752945 PMCID: PMC10518488 DOI: 10.1016/j.isci.2023.107883] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2023] [Revised: 08/16/2023] [Accepted: 09/07/2023] [Indexed: 09/28/2023] Open
Abstract
The colonic mucosal barrier protects against infection, inflammation, and tissue ulceration. Composed primarily of Mucin-2, proteolytic erosion of this barrier is an invariant feature of colitis; however, the molecular mechanisms are not well understood. We have applied a recurrent food poisoning model of acquired inflammatory bowel disease using Salmonella enterica Typhimurium to investigate mucosal barrier erosion. Our findings reveal an innate Toll-like receptor 4-dependent mechanism activated by previous infection that induces Neu3 neuraminidase among colonic epithelial cells concurrent with increased Cathepsin-G protease secretion by Paneth cells. These anatomically separated host responses merge with the desialylation of nascent colonic Mucin-2 by Neu3 rendering the mucosal barrier susceptible to increased proteolytic breakdown by Cathepsin-G. Depletion of Cathepsin-G or Neu3 function using pharmacological inhibitors or genetic-null alleles protected against Mucin-2 proteolysis and barrier erosion and reduced the frequency and severity of colitis, revealing approaches to preserve and potentially restore the mucosal barrier.
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Affiliation(s)
- Won Ho Yang
- Sanford-Burnham-Prebys Medical Discovery Institute, Infectious and Inflammatory Diseases Center; La Jolla, CA 92037, USA
- Glycosylation Network Research Center and Department of Systems Biology, College of Life Science and Biotechnology, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea
| | - Peter V. Aziz
- Sanford-Burnham-Prebys Medical Discovery Institute, Infectious and Inflammatory Diseases Center; La Jolla, CA 92037, USA
| | - Douglas M. Heithoff
- Department of Molecular, Cellular, and Developmental Biology, University of California, Santa Barbara, Santa Barbara, CA 93106, USA
| | - Yeolhoe Kim
- Glycosylation Network Research Center and Department of Systems Biology, College of Life Science and Biotechnology, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea
| | - Jeong Yeon Ko
- Glycosylation Network Research Center and Department of Systems Biology, College of Life Science and Biotechnology, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea
| | - Jin Won Cho
- Glycosylation Network Research Center and Department of Systems Biology, College of Life Science and Biotechnology, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea
| | - Michael J. Mahan
- Department of Molecular, Cellular, and Developmental Biology, University of California, Santa Barbara, Santa Barbara, CA 93106, USA
| | - Markus Sperandio
- Walter Brendel Center for Experimental Medicine, Institute of Cardiovascular Physiology and Pathophysiology, Ludwig Maximilians University, Munich, Germany
| | - Jamey D. Marth
- Sanford-Burnham-Prebys Medical Discovery Institute, Infectious and Inflammatory Diseases Center; La Jolla, CA 92037, USA
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2
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Wu Q, Wu X, Wang M, Liu K, Li Y, Ruan X, Qian L, Meng L, Sun Z, Zhu L, Wu J, Mu G. Therapeutic Mechanism of Baicalin in Experimental Colitis Analyzed Using Network Pharmacology and Metabolomics. Drug Des Devel Ther 2023; 17:1007-1024. [PMID: 37025160 PMCID: PMC10072146 DOI: 10.2147/dddt.s399290] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2022] [Accepted: 03/13/2023] [Indexed: 04/03/2023] Open
Abstract
Background Baicalin is an important active flavonoid isolated from the roots of Scutellaria baicalensis (S. baicalensis), a well-known traditional Chinese herb used in treating inflammatory bowel disease (IBD). The objectives of this study were to assess the potential benefit of baicalin in experimental colitis, as well as to investigate metabolic biomarkers of experimental colitis in conjunction with network pharmacology. Methods Using a widely utilized network pharmacology technique, baicalin's targets and pathways were predicted. Simultaneously, experimental colitis was induced by intrarectal administration of TNBS. Histopathology examinations were performed to confirm pathological changes. Plasma samples were examined by using an untargeted metabolomics technique based on ultra-high performance liquid chromatography-high resolution mass spectrometry (UHPLC-HRMS) to screen differential metabolites and associated metabolic pathways. Additionally, network pharmacology and integrated analysis of metabolomics were used to identify the primary targets. Results Through network pharmacology research, tumor necrosis factor (TNF), interleukin 6 (IL6), serine/threonine-protein kinase (AKT1), and other 7 proteins were found to be the main targets of baicalin against IBD. The untargeted metabolomics results showed that 47 metabolites in glycerophospholipids and sphingolipid metabolism were involved as key pathways in the experimental colitis model group. 19 metabolites, including Sphingomyelin (SM d42:2, SM d42:1, SM d34:1), Lysophosphatidic acids (LPA 18:4), 1-Palmitoylglycerophosphocholine, and 17(18)-EpETE were demonstrated as key metabolites for baicalin to exert effects. Moreover, udp-glucose ceramide glucosyltransferase (UGCG), sphingomyelin synthase 1 (SGMS1), and sphingosine kinase (SPHK1) were predicted as sphingolipids-linked targets of baicalin against experimental colitis by integrative analysis. Conclusion Based on these results, it implies that sphingolipid metabolism and sphingolipid signaling pathway might be acted as therapeutic mechanism for baicalin against experimental colitis.
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Affiliation(s)
- Qi Wu
- Gastroenterology Department, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, People’s Republic of China
| | - Xingxing Wu
- Gastroenterology Department, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, People’s Republic of China
| | - Mao Wang
- Ethics Committee, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, People’s Republic of China
| | - Kexin Liu
- Gastroenterology Department, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, People’s Republic of China
| | - Yuge Li
- Gastroenterology Department, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, People’s Republic of China
| | - Xiaoyu Ruan
- Gastroenterology Department, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, People’s Republic of China
| | - Lin Qian
- Gastroenterology Department, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, People’s Republic of China
| | - Lingchang Meng
- Institute of Chinese Medicine, Nanjing University, Nanjing Drum Tower Hospital, Drum Tower Clinical Medicine College of Nanjing University of Chinese Medicine, Nanjing, People’s Republic of China
| | - Zhiting Sun
- Institute of Chinese Medicine, Nanjing University, Nanjing Drum Tower Hospital, Drum Tower Clinical Medicine College of Nanjing University of Chinese Medicine, Nanjing, People’s Republic of China
| | - Lei Zhu
- Gastroenterology Department, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, People’s Republic of China
| | - Jing Wu
- Institute of Chinese Medicine, Nanjing University, Nanjing Drum Tower Hospital, Drum Tower Clinical Medicine College of Nanjing University of Chinese Medicine, Nanjing, People’s Republic of China
| | - Genglin Mu
- Institute of Chinese Medicine, Nanjing University, Nanjing Drum Tower Hospital, Drum Tower Clinical Medicine College of Nanjing University of Chinese Medicine, Nanjing, People’s Republic of China
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3
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Lillehoj EP, Luzina IG, Atamas SP. Mammalian Neuraminidases in Immune-Mediated Diseases: Mucins and Beyond. Front Immunol 2022; 13:883079. [PMID: 35479093 PMCID: PMC9035539 DOI: 10.3389/fimmu.2022.883079] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Accepted: 03/21/2022] [Indexed: 12/28/2022] Open
Abstract
Mammalian neuraminidases (NEUs), also known as sialidases, are enzymes that cleave off the terminal neuraminic, or sialic, acid resides from the carbohydrate moieties of glycolipids and glycoproteins. A rapidly growing body of literature indicates that in addition to their metabolic functions, NEUs also regulate the activity of their glycoprotein targets. The simple post-translational modification of NEU protein targets-removal of the highly electronegative sialic acid-affects protein folding, alters protein interactions with their ligands, and exposes or covers proteolytic sites. Through such effects, NEUs regulate the downstream processes in which their glycoprotein targets participate. A major target of desialylation by NEUs are mucins (MUCs), and such post-translational modification contributes to regulation of disease processes. In this review, we focus on the regulatory roles of NEU-modified MUCs as coordinators of disease pathogenesis in fibrotic, inflammatory, infectious, and autoimmune diseases. Special attention is placed on the most abundant and best studied NEU1, and its recently discovered important target, mucin-1 (MUC1). The role of the NEU1 - MUC1 axis in disease pathogenesis is discussed, along with regulatory contributions from other MUCs and other pathophysiologically important NEU targets.
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Affiliation(s)
- Erik P. Lillehoj
- Department of Pediatrics, University of Maryland School of Medicine, Baltimore, MD, United States
| | - Irina G. Luzina
- Department of Medicine, University of Maryland School of Medicine, Baltimore, MD, United States
- Research Service, Baltimore Veterans Affairs (VA) Medical Center, Baltimore, MD, United States
| | - Sergei P. Atamas
- Department of Medicine, University of Maryland School of Medicine, Baltimore, MD, United States
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4
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Emma EM, Amanda J. Dietary lipids from body to brain. Prog Lipid Res 2021; 85:101144. [PMID: 34915080 DOI: 10.1016/j.plipres.2021.101144] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2021] [Revised: 12/08/2021] [Accepted: 12/08/2021] [Indexed: 12/12/2022]
Abstract
Dietary habits have drastically changed over the last decades in Western societies. The Western diet, rich in saturated fatty acids (SFA), trans fatty acids (TFA), omega-6 polyunsaturated fatty acids (n-6 PUFA) and cholesterol, is accepted as an important factor in the development of metabolic disorders, such as obesity and diabetes type 2. Alongside these diseases, nutrition is associated with the prevalence of brain disorders. Although clinical and epidemiological studies revealed that metabolic diseases and brain disorders might be related, the underlying pathology is multifactorial, making it hard to determine causal links. Neuroinflammation can be a result of unhealthy diets that may cause alterations in peripheral metabolism. Especially, dietary fatty acids are of interest, as they act as signalling molecules responsible for inflammatory processes. Diets rich in n-6 PUFA, SFA and TFA increase neuroinflammation, whereas diets rich in monounsaturated fatty acids (MUFA), omega-3 (n-3) PUFA and sphingolipids (SL) can diminish neuroinflammation. Moreover, these pro- and anti-inflammatory diets might indirectly influence neuroinflammation via the adipose tissue, microbiome, intestine and vasculature. Here, we review the impact of nutrition on brain health. In particular, we will discuss the role of dietary lipids in signalling pathways directly applicable to inflammation and neuronal function.
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Affiliation(s)
- E M Emma
- Department of Medical Imaging, Anatomy, Radboud university medical center, Donders Institute for Brain Cognition and Behaviour, Nijmegen, the Netherlands
| | - J Amanda
- Department of Medical Imaging, Anatomy, Radboud university medical center, Donders Institute for Brain Cognition and Behaviour, Nijmegen, the Netherlands.
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Neu3 neuraminidase induction triggers intestinal inflammation and colitis in a model of recurrent human food-poisoning. Proc Natl Acad Sci U S A 2021; 118:2100937118. [PMID: 34266954 DOI: 10.1073/pnas.2100937118] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Intestinal inflammation is the underlying basis of colitis and the inflammatory bowel diseases. These syndromes originate from genetic and environmental factors that remain to be fully identified. Infections are possible disease triggers, including recurrent human food-poisoning by the common foodborne pathogen Salmonella enterica Typhimurium (ST), which in laboratory mice causes progressive intestinal inflammation leading to an enduring colitis. In this colitis model, disease onset has been linked to Toll-like receptor-4-dependent induction of intestinal neuraminidase activity, leading to the desialylation, reduced half-life, and acquired deficiency of anti-inflammatory intestinal alkaline phosphatase (IAP). Neuraminidase (Neu) inhibition protected against disease onset; however, the source and identity of the Neu enzyme(s) responsible remained unknown. Herein, we report that the mammalian Neu3 neuraminidase is responsible for intestinal IAP desialylation and deficiency. Absence of Neu3 thereby prevented the accumulation of lipopolysaccharide-phosphate and inflammatory cytokine expression in providing protection against the development of severe colitis.
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Miklavcic JJ, Li Q, Skolnick J, Thomson ABR, Mazurak VC, Clandinin MT. Ganglioside Alters Phospholipase Trafficking, Inhibits NF-κB Assembly, and Protects Tight Junction Integrity. Front Nutr 2021; 8:705172. [PMID: 34291075 PMCID: PMC8286996 DOI: 10.3389/fnut.2021.705172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2021] [Accepted: 06/04/2021] [Indexed: 11/13/2022] Open
Abstract
Background and Aims: Dietary gangliosides are present in human milk and consumed in low amounts from organ meats. Clinical and animal studies indicate that dietary gangliosides attenuate signaling processes that are a hallmark of inflammatory bowel disease (IBD). Gangliosides decrease pro-inflammatory markers, improve intestinal permeability, and reduce symptoms characteristic in patients with IBD. The objective of this study was to examine mechanisms by which dietary gangliosides exert beneficial effects on intestinal health. Methods: Studies were conducted in vitro using CaCo-2 intestinal epithelial cells. Gangliosides were extracted from milk powder and incubated with differentiated CaCo-2 cells after exposure to pro-inflammatory stimuli. Gut barrier integrity was assessed by electron microscopy, epithelial barrier function was examined by measuring transepithelial electric resistance, and content of HBD-2, IL-23, NF-κB, and sPLA2 was assessed by ELISA. Results: Ganglioside attenuated the decrease in integrity of tight junctions induced by pro-inflammatory stimuli and improved epithelial barrier function (P < 0.05). Ganglioside decreased the basolateral secretion of sPLA2 (P ≤ 0.05), lowered HBD-2 and IL-23 levels (P ≤ 0.05), and inhibited NF-κB activation (P ≤ 0.05). Conclusions: In summary, the present study indicates that ganglioside GD3 improves intestinal integrity by altering sPLA2 trafficking, and the production of pro-inflammatory mediators is mitigated by decreasing assembly of the NF-κB complex. Dietary gangliosides may have promising potential beneficial effects in IBD as decreased inflammatory signaling, improved intestinal integrity, and maintenance of epithelial barrier function have been demonstrated in vitro.
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Affiliation(s)
- John J Miklavcic
- Schmid College of Science and Technology, Chapman University, Orange, CA, United States.,School of Pharmacy, Chapman University, Irvine, CA, United States
| | - Qun Li
- Agricultural, Food & Nutritional Science, University of Alberta, Edmonton, AB, Canada
| | - Jordan Skolnick
- Schmid College of Science and Technology, Chapman University, Orange, CA, United States
| | - Alan B R Thomson
- Division of Gastroenterology, Western University, London, ON, Canada
| | - Vera C Mazurak
- Agricultural, Food & Nutritional Science, University of Alberta, Edmonton, AB, Canada
| | - Micheal Tom Clandinin
- Agricultural, Food & Nutritional Science, University of Alberta, Edmonton, AB, Canada.,Faculty of Medicine & Dentistry, University of Alberta, Edmonton, AB, Canada
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Sobenin IA, Markin AM, Glanz VY, Markina YV, Wu WK, Myasoedova VA, Orekhov AN. Prospects for the Use of Sialidase Inhibitors in Anti-atherosclerotic Therapy. Curr Med Chem 2021; 28:2438-2450. [PMID: 32867633 DOI: 10.2174/0929867327666200831133912] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2020] [Revised: 05/01/2020] [Accepted: 05/22/2020] [Indexed: 11/22/2022]
Abstract
The most typical feature of atherogenesis in humans at its early stage is the formation of foam cells in subendothelial arterial intima, which occurs as the consequence of intracellular cholesterol deposition. The main source of lipids accumulating in the arterial wall is circulating low-density lipoprotein (LDL). However, LDL particles should undergo proatherogenic modification to acquire atherogenic properties. One of the known types of atherogenic modification of LDL is enzymatic deglycosilation, namely, desialylation, which is the earliest change in the cascade of following multiple LDL modifications. The accumulating data make sialidases an intriguing and plausible therapeutic target, since pharmacological modulation of activity of these enzymes may have beneficial effects in several pathologies, including atherosclerosis. The hypothesis exists that decreasing LDL enzymatic desialylation may result in the prevention of lipid accumulation in arterial wall, thus breaking down one of the key players in atherogenesis at the cellular level. Several drugs acting as glycomimetics and inhibiting sialidase enzymatic activity already exist, but the concept of sialidase inhibition as an anti-atherosclerosis strategy remains unexplored to date. This review is focused on the potential possibilities of the repurposing of sialidase inhibitors for pathogenetic anti-atherosclerotic therapy.
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Affiliation(s)
- Igor A Sobenin
- Laboratory of Infection Pathology and Molecular Microecology & Central Laboratory of Pathology, Institute of Human Morphology, Moscow, Russian Federation
| | - Alexander M Markin
- Laboratory of Infection Pathology and Molecular Microecology & Central Laboratory of Pathology, Institute of Human Morphology, Moscow, Russian Federation
| | - Victor Y Glanz
- Laboratory of Infection Pathology and Molecular Microecology & Central Laboratory of Pathology, Institute of Human Morphology, Moscow, Russian Federation
| | - Yuliya V Markina
- Laboratory of Infection Pathology and Molecular Microecology & Central Laboratory of Pathology, Institute of Human Morphology, Moscow, Russian Federation
| | - Wei-Kai Wu
- Department of Internal Medicine, National Taiwan University Hospital, Bei- Hu Branch, Taipei, Taiwan
| | - Veronika A Myasoedova
- Laboratory of Angiopathology, Institute of General Pathology and Pathophysiology, Russian Academy of Sciences, Moscow, Russian Federation
| | - Alexander N Orekhov
- Laboratory of Angiopathology, Institute of General Pathology and Pathophysiology, Russian Academy of Sciences, Moscow, Russian Federation
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8
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CircHECTD1 up-regulates mucin 1 expression to accelerate hepatocellular carcinoma development by targeting microRNA-485-5p via a competing endogenous RNA mechanism. Chin Med J (Engl) 2021; 133:1774-1785. [PMID: 32675746 PMCID: PMC7469999 DOI: 10.1097/cm9.0000000000000917] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
Background: Non-coding RNAs have attracted considerable attention for their vital role in cancer. The purpose of this study was to determine the effects of non-coding RNAs on hepatocellular carcinoma (HCC) and reveal their regulatory mechanism in the pathophysiological process. Methods: We measured the expression of mucin 1 (MUC1) and miR-485-5p in tissues from 15 HCC patients and in liver cancer cell lines by quantitative real-time polymerase chain reaction and Western blot, screened for aberrantly expressed microRNAs (miRNAs) by miRNA microarrays. Bioinformatics tools were used to find the miRNA and circular RNA that regulated MUC1, which were validated by RNA immunoprecipitation assay and luciferase reporter assay. Cell counting kit-8, Transwell assays, and flow cytometry were used to conduct functional experiments. Proteins were examined by western blot and immunohistochemical staining assays. Significant differences between groups were estimated using the one-way analysis of variance. A P < 0.05 was considered statistically significant. Results: MUC1 was overexpressed in HCC tissues compared with that in paratumor tissues (normal vs. tumor, 1.007 ± 0.215 vs. 75.213 ± 18.403, t = 18.401, P < 0.001) while miR-485-5p was down-regulated (normal vs. tumor, 4.894 ± 0.684 vs. 1.586 ± 0.398, t = 16.191, P < 0.001). Inhibition of miR-485-5p promoted cell proliferation (73.33% ± 5.13% vs. 41.33% ± 3.51%, t = 8.913, P < 0.001), migration (102 ± 8 cells vs. 46 ± 8 cells, t = 8.681, P < 0.001), invasion (59 ± 7 cells vs. 28 ± 2 cells, t = 8.034, P < 0.01), and suppressed apoptosis (22.64% ± 6.97% vs. 36.33% ± 3.96%, t = 2.958, P < 0.05) of HepG2 cells with which MUC1 is knocked down. Mechanically, miR-485-5p binds to MUC1, while circHECTD1 binds to miR-485-5p, resulting in the indirect up-regulation of the MUC1 level. Conclusions: Our findings reveal that circHECTD1 facilitates HCC progression by sponging miR-485-5p to up-regulate MUC1.
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Liang N, Nečasová L, Zhao YY, Curtis JM. Advances in the separation of gangliosides by counter-current chromatography (CCC). J Chromatogr B Analyt Technol Biomed Life Sci 2021; 1174:122701. [PMID: 33957356 DOI: 10.1016/j.jchromb.2021.122701] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2020] [Revised: 03/30/2021] [Accepted: 04/02/2021] [Indexed: 02/07/2023]
Abstract
Gangliosides play critical roles in the development of many progressive diseases. Due to their structural diversity, efficient methods are needed to separate individual gangliosides for studies of their functions, and for use as standards in the analysis of ganglioside mixtures. This proof-of-concept study reports a useful analytical-semi-preparative scale counter-current chromatography (CCC) enrichment of multiple ganglioside homologues of various species and classes at the milligram level. Since few individual ganglioside standards were available, this research aimed to achieve analytical-semi-preparative scale separation of gangliosides by differences in saccharide monomer compositions (classes), their arrangements (species), or ceramide compositions (homologues), using CCC. The solvent system composition, addition of solvent modifiers, and elution modes were all adjusted to separate porcine gangliosides, mainly GM1 (d36:1), GD1a (d36:1), GD1b (d36:1) and their (d38:1) homologues as a demonstration. The eluted compounds were analyzed by flow-injection analysis (FIA)-MS and LC-MS/MS. A two-phase solvent system, consisting of butanol/methyl t-butyl ether/acetonitrile/water at a ratio of 2:4:3:8 (v/v/v/v) with 0.5% (v/v) acetic acid added to the lower phase, was used to separate mg-levels of porcine gangliosides under dual-mode elution. The relative abundances of the above 6 gangliosides increased from 10 to 21% in the ganglioside extract to 55-73% in the collected fractions through the purification.
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Affiliation(s)
- Nuanyi Liang
- Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, Alberta T6G 2P5, Canada.
| | - Lucie Nečasová
- Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, Alberta T6G 2P5, Canada
| | - Yuan-Yuan Zhao
- Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, Alberta T6G 2P5, Canada
| | - Jonathan M Curtis
- Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, Alberta T6G 2P5, Canada
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Sienkiewicz M, Szymańska P, Fichna J. Supplementation of Bovine Colostrum in Inflammatory Bowel Disease: Benefits and Contraindications. Adv Nutr 2021; 12:533-545. [PMID: 33070186 PMCID: PMC8009748 DOI: 10.1093/advances/nmaa120] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Revised: 07/06/2020] [Accepted: 09/03/2020] [Indexed: 12/12/2022] Open
Abstract
Inflammatory bowel disease (IBD) is a group of chronic relapsing disorders whose etiology has not been fully explained. Therefore, available therapeutic approaches for IBD patients are still insufficient. Current treatment strategies are targeted to immune system dysfunctions, often associated with alternations in the microbiota, which contribute to the development of chronic intestinal inflammation. Therapeutics include anti-inflammatory drugs such as aminosalicylates and corticosteroids, immunosuppressive agents, antibiotics, and biological agents such as infliximab and vedolizumab. Auxiliary therapies involve a balanced and personalized diet, healthy lifestyle, avoiding stress, as well as dietary supplements. In this review, we discuss the use of bovine colostrum (BC) as a therapeutic agent, including its advantages and contraindications. We summarize our knowledge on well-researched BC constituents and their effects on the gastrointestinal tract as evidenced in in vitro and in vivo studies.
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Affiliation(s)
- Michał Sienkiewicz
- Department of Biochemistry, Faculty of Medicine, Medical University of Lodz, Lodz, Poland
| | - Patrycja Szymańska
- Department of Hemostasis and Hemostatic Disorders, Faculty of Health Sciences, Medical University of Lodz, Lodz, Poland
| | - Jakub Fichna
- Department of Biochemistry, Faculty of Medicine, Medical University of Lodz, Lodz, Poland
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11
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Tauzin AS, Pereira MR, Van Vliet LD, Colin PY, Laville E, Esque J, Laguerre S, Henrissat B, Terrapon N, Lombard V, Leclerc M, Doré J, Hollfelder F, Potocki-Veronese G. Investigating host-microbiome interactions by droplet based microfluidics. MICROBIOME 2020; 8:141. [PMID: 33004077 PMCID: PMC7531118 DOI: 10.1186/s40168-020-00911-z] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2020] [Accepted: 08/23/2020] [Indexed: 05/08/2023]
Abstract
BACKGROUND Despite the importance of the mucosal interface between microbiota and the host in gut homeostasis, little is known about the mechanisms of bacterial gut colonization, involving foraging for glycans produced by epithelial cells. The slow pace of progress toward understanding the underlying molecular mechanisms is largely due to the lack of efficient discovery tools, especially those targeting the uncultured fraction of the microbiota. RESULTS Here, we introduce an ultra-high-throughput metagenomic approach based on droplet microfluidics, to screen fosmid libraries. Thousands of bacterial genomes can be covered in 1 h of work, with less than ten micrograms of substrate. Applied to the screening of the mucosal microbiota for β-N-acetylgalactosaminidase activity, this approach allowed the identification of pathways involved in the degradation of human gangliosides and milk oligosaccharides, the structural homologs of intestinal mucin glycans. These pathways, whose prevalence is associated with inflammatory bowel diseases, could be the result of horizontal gene transfers with Bacteroides species. Such pathways represent novel targets to study the microbiota-host interactions in the context of inflammatory bowel diseases, in which the integrity of the mucosal barrier is impaired. CONCLUSION By compartmentalizing experiments inside microfluidic droplets, this method speeds up and miniaturizes by several orders of magnitude the screening process compared to conventional approaches, to capture entire metabolic pathways from metagenomic libraries. The method is compatible with all types of (meta)genomic libraries, and employs a commercially available flow cytometer instead of a custom-made sorting system to detect intracellular or extracellular enzyme activities. This versatile and generic workflow will accelerate experimental exploration campaigns in functional metagenomics and holobiomics studies, to further decipher host-microbiota relationships. Video Abstract.
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Affiliation(s)
- Alexandra S Tauzin
- TBI, CNRS, INRAE, INSAT, Université de Toulouse, F-31400, Toulouse, France
| | - Mariana Rangel Pereira
- Department of Biochemistry, University of Cambridge, Cambridge, CB2 1GA, UK
- CAPES Foundation, Ministry of Education of Brazil, BrasÍlia, DF, 70040-020, Brazil
| | - Liisa D Van Vliet
- Department of Biochemistry, University of Cambridge, Cambridge, CB2 1GA, UK
- Drop-Tech, Canterbury Court, Cambridge, CB4 3QU, UK
| | - Pierre-Yves Colin
- Department of Biochemistry, University of Cambridge, Cambridge, CB2 1GA, UK
| | - Elisabeth Laville
- TBI, CNRS, INRAE, INSAT, Université de Toulouse, F-31400, Toulouse, France
| | - Jeremy Esque
- TBI, CNRS, INRAE, INSAT, Université de Toulouse, F-31400, Toulouse, France
| | - Sandrine Laguerre
- TBI, CNRS, INRAE, INSAT, Université de Toulouse, F-31400, Toulouse, France
| | - Bernard Henrissat
- CNRS, UMR 7257, Aix-Marseille Université, F-13288, Marseille, France
- USC 1408 AFMB, INRAE, F-13288, Marseille, France
- Department of Biological Sciences, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Nicolas Terrapon
- CNRS, UMR 7257, Aix-Marseille Université, F-13288, Marseille, France
- USC 1408 AFMB, INRAE, F-13288, Marseille, France
| | - Vincent Lombard
- CNRS, UMR 7257, Aix-Marseille Université, F-13288, Marseille, France
- USC 1408 AFMB, INRAE, F-13288, Marseille, France
| | - Marion Leclerc
- Micalis Institute, INRAE, AgroParisTech, Université Paris-Saclay, F-78350, Jouy-en-Josas, France
| | - Joël Doré
- Micalis Institute, INRAE, AgroParisTech, Université Paris-Saclay, F-78350, Jouy-en-Josas, France
- Metagenopolis, INRAE, F-78350, Jouy-en-Josas, France
| | - Florian Hollfelder
- Department of Biochemistry, University of Cambridge, Cambridge, CB2 1GA, UK.
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12
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Sitkin S, Demyanova E, Vakhitov T, Pokrotnieks J. Altered Sphingolipid Metabolism and its Interaction With the Intestinal Microbiome Is Another Key to the Pathogenesis of Inflammatory Bowel Disease. Inflamm Bowel Dis 2019; 25:e157-e158. [PMID: 31560761 DOI: 10.1093/ibd/izz228] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Stanislav Sitkin
- Department of Internal Diseases, Gastroenterology and Dietetics, North-Western State Medical University named after I.I. Mechnikov, St. Petersburg, Russia.,Department of Microbiology, State Research Institute of Highly Pure Biopreparations, St. Petersburg, Russia.,Institute of Perinatology and Pediatrics, Almazov National Medical Research Centre, St. Petersburg, Russia
| | - Elena Demyanova
- Department of Microbiology, State Research Institute of Highly Pure Biopreparations, St. Petersburg, Russia
| | - Timur Vakhitov
- Department of Microbiology, State Research Institute of Highly Pure Biopreparations, St. Petersburg, Russia
| | - Juris Pokrotnieks
- Department of Internal Diseases, Rīga Stradiņš University, Riga, Latvia.,Centre of Gastroenterology, Hepatology and Nutrition, Pauls Stradiņš Clinical University Hospital, Riga, Latvia
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13
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Yang WH, Heithoff DM, Aziz PV, Sperandio M, Nizet V, Mahan MJ, Marth JD. Recurrent infection progressively disables host protection against intestinal inflammation. Science 2018; 358:358/6370/eaao5610. [PMID: 29269445 DOI: 10.1126/science.aao5610] [Citation(s) in RCA: 62] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2017] [Accepted: 11/13/2017] [Indexed: 12/15/2022]
Abstract
Intestinal inflammation is the central pathological feature of colitis and the inflammatory bowel diseases. These syndromes arise from unidentified environmental factors. We found that recurrent nonlethal gastric infections of Gram-negative Salmonella enterica Typhimurium (ST), a major source of human food poisoning, caused inflammation of murine intestinal tissue, predominantly the colon, which persisted after pathogen clearance and irreversibly escalated in severity with repeated infections. ST progressively disabled a host mechanism of protection by inducing endogenous neuraminidase activity, which accelerated the molecular aging and clearance of intestinal alkaline phosphatase (IAP). Disease was linked to a Toll-like receptor 4 (TLR4)-dependent mechanism of IAP desialylation with accumulation of the IAP substrate and TLR4 ligand, lipopolysaccharide-phosphate. The administration of IAP or the antiviral neuraminidase inhibitor zanamivir was therapeutic by maintaining IAP abundance and function.
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Affiliation(s)
- Won Ho Yang
- Center for Nanomedicine, University of California, Santa Barbara, Santa Barbara, CA 93106, USA.,Sanford Burnham Prebys Medical Discovery Institute, University of California, Santa Barbara, Santa Barbara, CA 93106, USA.,Department of Molecular, Cellular, and Developmental Biology, University of California, Santa Barbara, Santa Barbara, CA 93106, USA
| | - Douglas M Heithoff
- Center for Nanomedicine, University of California, Santa Barbara, Santa Barbara, CA 93106, USA.,Department of Molecular, Cellular, and Developmental Biology, University of California, Santa Barbara, Santa Barbara, CA 93106, USA
| | - Peter V Aziz
- Center for Nanomedicine, University of California, Santa Barbara, Santa Barbara, CA 93106, USA.,Sanford Burnham Prebys Medical Discovery Institute, University of California, Santa Barbara, Santa Barbara, CA 93106, USA.,Department of Molecular, Cellular, and Developmental Biology, University of California, Santa Barbara, Santa Barbara, CA 93106, USA
| | - Markus Sperandio
- Walter-Brendel-Centre for Experimental Medicine, Ludwig-Maximilians-University, Munich, Germany
| | - Victor Nizet
- Department of Pediatrics and Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California, San Diego, La Jolla, CA 92093, USA
| | - Michael J Mahan
- Center for Nanomedicine, University of California, Santa Barbara, Santa Barbara, CA 93106, USA.,Department of Molecular, Cellular, and Developmental Biology, University of California, Santa Barbara, Santa Barbara, CA 93106, USA
| | - Jamey D Marth
- Center for Nanomedicine, University of California, Santa Barbara, Santa Barbara, CA 93106, USA. .,Sanford Burnham Prebys Medical Discovery Institute, University of California, Santa Barbara, Santa Barbara, CA 93106, USA.,Department of Molecular, Cellular, and Developmental Biology, University of California, Santa Barbara, Santa Barbara, CA 93106, USA
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14
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Biological and Pathological Roles of Ganglioside Sialidases. PROGRESS IN MOLECULAR BIOLOGY AND TRANSLATIONAL SCIENCE 2018; 156:121-150. [DOI: 10.1016/bs.pmbts.2017.12.005] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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15
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Vaghari-Tabari M, Moein S, Qujeq D, Kashifard M, Hajian-Tilaki K. Positive Correlation of Fecal Calprotectin With Serum Antioxidant Enzymes in Patients With Inflammatory Bowel Disease: Accidental Numerical Correlation or a New Finding? Am J Med Sci 2017; 355:449-455. [PMID: 29753375 DOI: 10.1016/j.amjms.2017.12.009] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2017] [Revised: 12/19/2017] [Accepted: 12/22/2017] [Indexed: 12/30/2022]
Abstract
BACKGROUND Oxidative stress occuring in patients diagnosed with inflammatory bowel disease (IBD), but the relationship between oxidative stress, disease activity and inflammatory markers has not been well established. MATERIALS AND METHODS A total of 30 patients diagnosed with IBD and 30 volunteers who had normal colonoscopies, selected as controls, were used for this study. The serum levels of antioxidant enzymes (catalase and glutathione peroxidase) and oxidative markers (malondialdehyde [MDA] and total antioxidant capacity) were compared between the 2 groups. Furthermore, their correlations with disease activity scores and inflammatory markers, especially the fecal calprotectin, were examined. RESULTS Catalase and glutathione peroxidase concentrations were significantly correlated with the level of fecal calprotectin in patients with IBD. Nevertheless, there were no significant correlations between the concentrations of the above-mentioned enzymes and C-reactive protein, erythrocyte sedimentation rate or the activity scores of IBD patients. It should be noted that MDA and total antioxidant capacity levels did not correlate with the inflammatory markers or the disease activity scores. CONCLUSIONS There was a positive correlation between fecal calprotectin and serum antioxidant enzymes in patients with IBD, but, there was no correlation between antioxidant and oxidative markers in terms of disease activity scores. Hence, the observed significant correlation between the antioxidant enzymes and the fecal calprotectin may be due to either the pro-oxidant potential of calprotectin or its antioxidant role.
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Affiliation(s)
- Mostafa Vaghari-Tabari
- Department of Biochemistry, Faculty of Medicine, Hormozgan University of Medical Sciences, Bandar Abbas, Iran
| | - Soheila Moein
- Department of Biochemistry, Faculty of Medicine, Hormozgan University of Medical Sciences, Bandar Abbas, Iran; Molecular Medicine Research Center, Hormozgan University of Medical Sciences, Bandar Abbas, Iran.
| | - Durdi Qujeq
- Department of Clinical Biochemistry, Babol University of Medical Sciences, Babol, Iran
| | - Mehrdad Kashifard
- Department of Internal Medicine, Ayatollah Rouhani Hospital, Babol University of Medical Sciences, Babol, Iran
| | - Karimollah Hajian-Tilaki
- Departments of Biostatistics and Epidemiology, Babol University of Medical Sciences, Babol, Iran
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16
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Miklavcic JJ, Shoemaker GK, Schnabl KL, Larsen BMK, Thomson ABR, Mazurak VC, Clandinin MT. Ganglioside Intake Increases Plasma Ganglioside Content in Human Participants. JPEN J Parenter Enteral Nutr 2015; 41:657-666. [DOI: 10.1177/0148607115620093] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- John J. Miklavcic
- Alberta Institute for Human Nutrition, University of Alberta, Edmonton, Alberta, Canada
| | - Glen K. Shoemaker
- Alberta Institute for Human Nutrition, University of Alberta, Edmonton, Alberta, Canada
| | - Kareena L. Schnabl
- Department of Laboratory Medicine and Pathology, University of Alberta, Edmonton, Alberta, Canada
| | | | - Alan B. R. Thomson
- Division of Gastroenterology, Western University, London, Ontario, Canada
| | - Vera C. Mazurak
- Alberta Institute for Human Nutrition, University of Alberta, Edmonton, Alberta, Canada
| | - M. Tom Clandinin
- Alberta Institute for Human Nutrition, University of Alberta, Edmonton, Alberta, Canada
- Department of Medicine, University of Alberta, Edmonton, Alberta, Canada
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