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Lee J, Wellenstein K, Rahnavard A, Nelson AT, Holter MM, Cummings BP, Yeliseyev V, Castoldi A, Clish CB, Bry L, Siegel D, Kahn BB. Beneficial metabolic effects of PAHSAs depend on the gut microbiota in diet-induced obese mice but not in chow-fed mice. Proc Natl Acad Sci U S A 2024; 121:e2318691121. [PMID: 38968121 DOI: 10.1073/pnas.2318691121] [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: 11/09/2023] [Accepted: 05/31/2024] [Indexed: 07/07/2024] Open
Abstract
Dietary lipids play an essential role in regulating the function of the gut microbiota and gastrointestinal tract, and these luminal interactions contribute to mediating host metabolism. Palmitic Acid Hydroxy Stearic Acids (PAHSAs) are a family of lipids with antidiabetic and anti-inflammatory properties, but whether the gut microbiota contributes to their beneficial effects on host metabolism is unknown. Here, we report that treating chow-fed female and male germ-free (GF) mice with PAHSAs improves glucose tolerance, but these effects are lost upon high fat diet (HFD) feeding. However, transfer of feces from PAHSA-treated, but not vehicle-treated, chow-fed conventional mice increases insulin sensitivity in HFD-fed GF mice. Thus, the gut microbiota is necessary for, and can transmit, the insulin-sensitizing effects of PAHSAs in HFD-fed GF male mice. Analyses of the cecal metagenome and lipidome of PAHSA-treated mice identified multiple lipid species that associate with the gut commensal Bacteroides thetaiotaomicron (Bt) and with insulin sensitivity resulting from PAHSA treatment. Supplementing live, and to some degree, heat-killed Bt to HFD-fed female mice prevented weight gain, reduced adiposity, improved glucose tolerance, fortified the colonic mucus barrier and reduced systemic inflammation compared to HFD-fed controls. These effects were not observed in HFD-fed male mice. Furthermore, ovariectomy partially reversed the beneficial Bt effects on host metabolism, indicating a role for sex hormones in mediating the Bt probiotic effects. Altogether, these studies highlight the fact that PAHSAs can modulate the gut microbiota and that the microbiota is necessary for the beneficial metabolic effects of PAHSAs in HFD-fed mice.
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Affiliation(s)
- Jennifer Lee
- Division of Endocrinology, Diabetes and Metabolism, Department of Medicine, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA 02215
| | - Kerry Wellenstein
- Division of Endocrinology, Diabetes and Metabolism, Department of Medicine, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA 02215
| | - Ali Rahnavard
- Department of Biostatistics and Bioinformatics, Milken Institute School of Public Health, George Washington University, Washington, DC 20052
| | - Andrew T Nelson
- Division of Pharmaceutical Chemistry, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California San Diego, La Jolla, CA 92093
| | - Marlena M Holter
- Department of Biomedical Sciences, Cornell University College of Veterinary Medicine, Cornell University, Ithaca, NY 14850
| | - Bethany P Cummings
- Department of Surgery, School of Medicine, University of California, Davis, Sacramento, CA 95817
- Department of Molecular Biosciences, School of Veterinary Medicine, University of California Davis School of Veterinary Medicine, Davis, CA 95616
| | - Vladimir Yeliseyev
- Massachusetts Host-Microbiome Center, Department of Pathology, Brigham & Women's Hospital and Harvard Medical School, Boston, MA 02115
| | - Angela Castoldi
- Laboratory of Immunopathology Keizo Asami, Federal University of Pernambuco, Recife 50670-901, Brazil
| | - Clary B Clish
- Broad Institute of Massachusetts Institute of Technology and Harvard, Cambridge, MA 02142
| | - Lynn Bry
- Massachusetts Host-Microbiome Center, Department of Pathology, Brigham & Women's Hospital and Harvard Medical School, Boston, MA 02115
| | - Dionicio Siegel
- Division of Pharmaceutical Chemistry, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California San Diego, La Jolla, CA 92093
| | - Barbara B Kahn
- Division of Endocrinology, Diabetes and Metabolism, Department of Medicine, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA 02215
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Ma C, Yimamu M, Zhang S, Shah AM, Yang H, Cai W, Li C, Lu X, Li F, Yang K. Effects of guanidino acetic acid and betaine supplementation on growth, dietary nutrient digestion and intestinal creatine metabolism in sheep. Vet Med Sci 2024; 10:e1470. [PMID: 38923734 PMCID: PMC11196381 DOI: 10.1002/vms3.1470] [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: 06/29/2023] [Revised: 03/23/2024] [Accepted: 04/21/2024] [Indexed: 06/28/2024] Open
Abstract
BACKGROUND The intestine of young ruminants is in the developmental stage and has weaker resistance to the changes of external environment. Improving intestinal health is vital to promoting growth of young ruminants. This study investigated effects of guanidino acetic acid (GAA) and rumen-protected betaine (RPB) supplementation on growth, dietary nutrient digestion and GAA metabolism in the small intestine of sheep. METHODS Eighteen healthy Kazakh rams (27.46 ± 0.10 kg of body weight and 3-month old) were categorized into control, test group I and test group II, which were fed a basal diet, 1500 mg/kg GAA and 1500 mg/kg GAA + 600 mg/kg RPB, respectively. RESULTS Compared with control group, test group II had increased (p < 0.05) average daily gain, plasma creatine level, ether extract (EE) and phosphorus digestibility on day 30. On day 60, the EE apparent digestibility, jugular venous plasma GAA, GAA content in the duodenal mucosa and GAA content in the jejunal and ileal mucosa of test group II were higher (p < 0.05) than other groups. Transcriptome analysis revealed that the differentially expressed genes (DEGs) involved in the duodenal pathways of oxidative phosphorylation and non-alcoholic fatty liver disease were significantly altered in test group II versus test group I (p < 0.05). Moreover, in the jejunum, the MAPK signalling pathway, complement and coagulation cascade and B-cell receptor signalling pathway were significantly enriched, with ATPase, solute carrier transporter protein, DHFR, SI, GCK, ACACA and FASN being the significantly DEGs (p < 0.05). CONCLUSION Dietary supplementation of RPB on top of GAA in sheep diets may promote sheep growth and development by improving the body's energy, amino acid, glucose and lipid metabolism capacity.
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Affiliation(s)
- Chen Ma
- College of Animal ScienceXinjiang Agricultural UniversityUrumchiChina
| | - Mireguli Yimamu
- College of Animal ScienceXinjiang Agricultural UniversityUrumchiChina
| | - Shiqi Zhang
- College of Animal ScienceXinjiang Agricultural UniversityUrumchiChina
| | - Ali Mujtaba Shah
- Key Laboratory of Animal GeneticsBreeding and Reproduction of Shaanxi ProvinceCollege of Animal Science and TechnologyNorthwest A&F UniversityXianyangChina
| | - Hao Yang
- College of Animal ScienceXinjiang Agricultural UniversityUrumchiChina
| | - Wenjie Cai
- College of Animal ScienceXinjiang Agricultural UniversityUrumchiChina
| | - Chaonan Li
- College of Animal ScienceXinjiang Agricultural UniversityUrumchiChina
| | - Xuejie Lu
- College of Animal ScienceXinjiang Agricultural UniversityUrumchiChina
| | - Fengming Li
- College of Animal ScienceXinjiang Agricultural UniversityUrumchiChina
| | - Kailun Yang
- College of Animal ScienceXinjiang Agricultural UniversityUrumchiChina
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3
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Eslamizad M, Albrecht D, Kuhla B, Koch F. Cellular and mitochondrial adaptation mechanisms in the colon of lactating dairy cows during hyperthermia. J Dairy Sci 2024; 107:3292-3305. [PMID: 38056565 DOI: 10.3168/jds.2023-24004] [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: 07/24/2023] [Accepted: 11/08/2023] [Indexed: 12/08/2023]
Abstract
Heat stress causes barrier dysfunction and inflammation of the small intestine of several species. However, less is known about the molecular and cellular mechanisms underlying the response of the bovine large intestine to hyperthermia. We aimed to identify changes in the colon of dairy cows in response to constant heat stress using a proteomic approach. Eighteen lactating Holstein dairy cows were kept under constant thermoneutral conditions (16°C and 68% relative humidity [RH]; temperature-humidity index [THI] = 60) for 6 d (period 1) with free access to feed and water. Thereafter, 6 cows were equally allocated to (1) thermoneutral condition with ad libitum feeding (TNAL; 16°C, RH = 68%, THI = 60), (2) heat stress condition (HS; 28°C, RH = 50%, THI = 76) with ad libitum feeding, or (3) pair-feeding at thermoneutrality (TNPF; 16°C, RH = 68%, THI = 60) for another 7 d (period 2). Rectal temperature, milk yield, dry matter and water intake were monitored daily. Then, cows were slaughtered and colon mucosa samples were taken for proteomic analysis. Physiological data were analyzed by ANOVA and colon proteome data were processed using DESeq2 package in R. Rectal temperature was significantly higher in HS than in TNPF and TNAL cows in period 2. Proteomic analysis revealed an enrichment of activated pathways related to colonic barrier function and inflammation, heat shock proteins, AA metabolism, reduced overall protein synthesis rate, and post-transcriptional regulation induced by heat stress. Further regulations were found for enzymes of the tricarboxylic acid cycle and components of the mitochondrial electron transport chain, presumably to reduce the generation of reactive oxygen species, maintain cellular ATP levels, and prevent apoptosis in the colon of HS cows. These results highlight the cellular, extracellular, and mitochondrial adaptations of the colon during heat stress and suggest a dysfunction of the hindgut barrier integrity potentially resulting in a "leaky" colon.
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Affiliation(s)
- Mehdi Eslamizad
- Research Institute for Farm Animal Biology (FBN), Institute of Nutritional Physiology "Oskar Kellner," 18196 Dummerstorf, Germany
| | - Dirk Albrecht
- Department for Microbial Physiology and Molecular Biology, University of Greifswald, 17489 Greifswald, Germany
| | - Björn Kuhla
- Research Institute for Farm Animal Biology (FBN), Institute of Nutritional Physiology "Oskar Kellner," 18196 Dummerstorf, Germany
| | - Franziska Koch
- Research Institute for Farm Animal Biology (FBN), Institute of Nutritional Physiology "Oskar Kellner," 18196 Dummerstorf, Germany.
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4
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Goo D, Ko H, Sharma MK, Choppa VSR, Paneru D, Shi H, Kim WK. Comparison of necrotic enteritis effects on growth performance and intestinal health in two different meat-type chicken strains Athens Canadian Random Bred and Cobb 500. Poult Sci 2024; 103:103599. [PMID: 38479098 PMCID: PMC10950882 DOI: 10.1016/j.psj.2024.103599] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2024] [Revised: 02/18/2024] [Accepted: 02/23/2024] [Indexed: 03/24/2024] Open
Abstract
Chickens have undergone genetic improvements in the past few decades to maximize growth efficiency. However, necrotic enteritis (NE), an enteric disease primarily caused by C. perfringens, remains a significant problem in poultry production. A study investigated the differences in intestinal health between the nonselected meat-type chicken Athens Canadian Random Bred (ACRB) and the modern meat-type Cobb 500 broilers (Cobb) when challenged with experimental NE. The study utilized a 2 × 3 factorial arrangement, consisting of two main effects of chicken strain and NE challenge model (nonchallenged control, NC; NE challenge with 2,500/12,500 Eimeria maxima oocysts + 1 × 109C. perfringens, NE2.5/NE12.5). A total of 432 fourteen-day-old male ACRB and Cobb were used until 22 d (8 d postinoculation with E. maxima on d 14, dpi), and the chickens were euthanized on 6 and 8 dpi for the analysis. All data were statistically analyzed using a two-way ANOVA, and Student's t-test or Tukey's HSD test was applied when P < 0.05. The NE12.5 group showed significant decreases in growth performance and relative growth performance from d 14 to 20, regardless of chicken strain (P < 0.01). The ACRB group exhibited significant decreases in relative body weight and relative body weight gain compared to the Cobb group from d 14 to 22 (P < 0.01). On 6 and 8 dpi, both NE challenge groups showed significant decreases in intestinal villus height to crypt depth ratio, jejunal goblet cell count, and jejunal MUC2 and LEAP2 expression (P < 0.01). Additionally, the NE12.5 group had significantly higher intestinal NE lesion score, intestinal permeability, fecal E. maxima oocyst count, intestinal C. perfringens count, and jejunal IFNγ and CCL4 expression compared to the NC group (P < 0.05). In conclusion, NE negatively impacts growth performance and intestinal health in broilers, parameters regardless of the strain.
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Affiliation(s)
- Doyun Goo
- Department of Poultry Science, University of Georgia, Athens, GA 30602, USA
| | - Hanseo Ko
- Department of Poultry Science, University of Georgia, Athens, GA 30602, USA
| | - Milan Kumar Sharma
- Department of Poultry Science, University of Georgia, Athens, GA 30602, USA
| | | | - Deependra Paneru
- Department of Poultry Science, University of Georgia, Athens, GA 30602, USA
| | - Hanyi Shi
- Department of Poultry Science, University of Georgia, Athens, GA 30602, USA
| | - Woo Kyun Kim
- Department of Poultry Science, University of Georgia, Athens, GA 30602, USA.
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5
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Kappelhoff S, Margheritis EG, Cosentino K. New insights into Gasdermin D pore formation. Biochem Soc Trans 2024; 52:681-692. [PMID: 38497302 DOI: 10.1042/bst20230549] [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: 12/20/2023] [Revised: 03/01/2024] [Accepted: 03/04/2024] [Indexed: 03/19/2024]
Abstract
Gasdermin D (GSDMD) is a pore-forming protein that perforates the plasma membrane (PM) during pyroptosis, a pro-inflammatory form of cell death, to induce the unconventional secretion of inflammatory cytokines and, ultimately, cell lysis. GSDMD is activated by protease-mediated cleavage of its active N-terminal domain from the autoinhibitory C-terminal domain. Inflammatory caspase-1, -4/5 are the main activators of GSDMD via either the canonical or non-canonical pathways of inflammasome activation, but under certain stimuli, caspase-8 and other proteases can also activate GSDMD. Activated GSDMD can oligomerize and assemble into various nanostructures of different sizes and shapes that perforate cellular membranes, suggesting plasticity in pore formation. Although the exact mechanism of pore formation has not yet been deciphered, cysteine residues are emerging as crucial modulators of the oligomerization process. GSDMD pores and thus the outcome of pyroptosis can be modulated by various regulatory mechanisms. These include availability of activated GSDMD at the PM, control of the number of GSDMD pores by PM repair mechanisms, modulation of the lipid environment and post-translational modifications. Here, we review the latest findings on the mechanisms that induce GSDMD to form membrane pores and how they can be tightly regulated for cell content release and cell fate modulation.
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Affiliation(s)
- Shirin Kappelhoff
- Department of Biology/Chemistry and Center for Cellular Nanoanalytics (CellNanOs), University of Osnabrück, Osnabrück, Germany
| | - Eleonora G Margheritis
- Department of Biology/Chemistry and Center for Cellular Nanoanalytics (CellNanOs), University of Osnabrück, Osnabrück, Germany
| | - Katia Cosentino
- Department of Biology/Chemistry and Center for Cellular Nanoanalytics (CellNanOs), University of Osnabrück, Osnabrück, Germany
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6
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Balasubramanian A, Hsu AY, Ghimire L, Tahir M, Devant P, Fontana P, Du G, Liu X, Fabin D, Kambara H, Xie X, Liu F, Hasegawa T, Xu R, Yu H, Chen M, Kolakowski S, Trauger S, Larsen MR, Wei W, Wu H, Kagan JC, Lieberman J, Luo HR. The palmitoylation of gasdermin D directs its membrane translocation and pore formation during pyroptosis. Sci Immunol 2024; 9:eadn1452. [PMID: 38530158 DOI: 10.1126/sciimmunol.adn1452] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2023] [Accepted: 03/20/2024] [Indexed: 03/27/2024]
Abstract
Plasma membrane perforation elicited by caspase cleavage of the gasdermin D (GSDMD) N-terminal domain (GSDMD-NT) triggers pyroptosis. The mechanisms underlying GSDMD membrane translocation and pore formation are not fully understood. Here, using a proteomic approach, we identified fatty acid synthase (FASN) as a GSDMD-binding partner. S-palmitoylation of GSDMD at Cys191/Cys192 (human/mouse), catalyzed by palmitoyl acyltransferases ZDHHC5 and ZDHHC9 and facilitated by reactive oxygen species (ROS), directly mediated membrane translocation of GSDMD-NT but not full-length GSDMD (GSDMD-FL). Palmitoylation of GSDMD-FL could be induced before inflammasome activation by stimuli such as lipopolysaccharide (LPS), consequently serving as an essential molecular event in macrophage priming. Inhibition of GSDMD palmitoylation suppressed macrophage pyroptosis and IL-1β release, mitigated organ damage, and enhanced the survival of septic mice. Thus, GSDMD-NT palmitoylation is a key regulatory mechanism controlling GSDMD membrane localization and activation, which may offer an additional target for modulating immune activity in infectious and inflammatory diseases.
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Affiliation(s)
- Arumugam Balasubramanian
- Department of Pathology, Dana-Farber/Harvard Cancer Center, Harvard Medical School and Department of Laboratory Medicine, Boston Children's Hospital, Enders Research Building, Room 811, Boston, MA 02115, USA
| | - Alan Y Hsu
- Department of Pathology, Dana-Farber/Harvard Cancer Center, Harvard Medical School and Department of Laboratory Medicine, Boston Children's Hospital, Enders Research Building, Room 811, Boston, MA 02115, USA
| | - Laxman Ghimire
- Department of Pathology, Dana-Farber/Harvard Cancer Center, Harvard Medical School and Department of Laboratory Medicine, Boston Children's Hospital, Enders Research Building, Room 811, Boston, MA 02115, USA
| | - Muhammad Tahir
- Department of Pathology, Dana-Farber/Harvard Cancer Center, Harvard Medical School and Department of Laboratory Medicine, Boston Children's Hospital, Enders Research Building, Room 811, Boston, MA 02115, USA
- Biomedical Mass Spectrometry and Systems Biology, University of Southern Denmark, Odense, Denmark
| | - Pascal Devant
- Division of Gastroenterology, Boston Children's Hospital and Harvard Medical School, 300 Longwood Avenue, Boston, MA 02115, USA
| | - Pietro Fontana
- Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Program in Cellular and Molecular Medicine, Boston Children's Hospital, Boston, MA 02115, USA
| | - Gang Du
- Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Program in Cellular and Molecular Medicine, Boston Children's Hospital, Boston, MA 02115, USA
| | - Xing Liu
- Department of Pediatrics, Harvard Medical School, Program in Cellular and Molecular Medicine, Boston Children's Hospital, Boston, MA 02115, USA
| | - Dang Fabin
- Department of Pathology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02215, USA
| | - Hiroto Kambara
- Department of Pathology, Dana-Farber/Harvard Cancer Center, Harvard Medical School and Department of Laboratory Medicine, Boston Children's Hospital, Enders Research Building, Room 811, Boston, MA 02115, USA
| | - Xuemei Xie
- Department of Pathology, Dana-Farber/Harvard Cancer Center, Harvard Medical School and Department of Laboratory Medicine, Boston Children's Hospital, Enders Research Building, Room 811, Boston, MA 02115, USA
| | - Fei Liu
- Department of Pathology, Dana-Farber/Harvard Cancer Center, Harvard Medical School and Department of Laboratory Medicine, Boston Children's Hospital, Enders Research Building, Room 811, Boston, MA 02115, USA
| | - Tomoya Hasegawa
- Department of Pathology, Dana-Farber/Harvard Cancer Center, Harvard Medical School and Department of Laboratory Medicine, Boston Children's Hospital, Enders Research Building, Room 811, Boston, MA 02115, USA
| | - Rong Xu
- Department of Pathology, Dana-Farber/Harvard Cancer Center, Harvard Medical School and Department of Laboratory Medicine, Boston Children's Hospital, Enders Research Building, Room 811, Boston, MA 02115, USA
| | - Hongbo Yu
- Department of Pathology and Laboratory Medicine, VA Boston Healthcare System, 1400 VFW Parkway, West Roxbury, MA 02132, USA
| | - Mei Chen
- Harvard Center for Mass Spectrometry, Harvard University, Boston, MA 02115, USA
| | - Steven Kolakowski
- Harvard Center for Mass Spectrometry, Harvard University, Boston, MA 02115, USA
| | - Sunia Trauger
- Harvard Center for Mass Spectrometry, Harvard University, Boston, MA 02115, USA
| | - Martin Røssel Larsen
- Biomedical Mass Spectrometry and Systems Biology, University of Southern Denmark, Odense, Denmark
| | - Wenyi Wei
- Department of Pathology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02215, USA
| | - Hao Wu
- Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Program in Cellular and Molecular Medicine, Boston Children's Hospital, Boston, MA 02115, USA
| | - Jonathan C Kagan
- Division of Gastroenterology, Boston Children's Hospital and Harvard Medical School, 300 Longwood Avenue, Boston, MA 02115, USA
| | - Judy Lieberman
- Department of Pediatrics, Harvard Medical School, Program in Cellular and Molecular Medicine, Boston Children's Hospital, Boston, MA 02115, USA
| | - Hongbo R Luo
- Department of Pathology, Dana-Farber/Harvard Cancer Center, Harvard Medical School and Department of Laboratory Medicine, Boston Children's Hospital, Enders Research Building, Room 811, Boston, MA 02115, USA
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Kibria MK, Ali MA, Yaseen M, Khan IA, Bhat MA, Islam MA, Mahumud RA, Mollah MNH. Discovery of Bacterial Key Genes from 16S rRNA-Seq Profiles That Are Associated with the Complications of SARS-CoV-2 Infections and Provide Therapeutic Indications. Pharmaceuticals (Basel) 2024; 17:432. [PMID: 38675393 PMCID: PMC11053588 DOI: 10.3390/ph17040432] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2024] [Revised: 03/18/2024] [Accepted: 03/21/2024] [Indexed: 04/28/2024] Open
Abstract
SARS-CoV-2 infections, commonly referred to as COVID-19, remain a critical risk to both human life and global economies. Particularly, COVID-19 patients with weak immunity may suffer from different complications due to the bacterial co-infections/super-infections/secondary infections. Therefore, different variants of alternative antibacterial therapeutic agents are required to inhibit those infection-causing drug-resistant pathogenic bacteria. This study attempted to explore these bacterial pathogens and their inhibitors by using integrated statistical and bioinformatics approaches. By analyzing bacterial 16S rRNA sequence profiles, at first, we detected five bacterial genera and taxa (Bacteroides, Parabacteroides, Prevotella Clostridium, Atopobium, and Peptostreptococcus) based on differentially abundant bacteria between SARS-CoV-2 infection and control samples that are significantly enriched in 23 metabolic pathways. A total of 183 bacterial genes were found in the enriched pathways. Then, the top-ranked 10 bacterial genes (accB, ftsB, glyQ, hldD, lpxC, lptD, mlaA, ppsA, ppc, and tamB) were selected as the pathogenic bacterial key genes (bKGs) by their protein-protein interaction (PPI) network analysis. Then, we detected bKG-guided top-ranked eight drug molecules (Bemcentinib, Ledipasvir, Velpatasvir, Tirilazad, Acetyldigitoxin, Entreatinib, Digitoxin, and Elbasvir) by molecular docking. Finally, the binding stability of the top-ranked three drug molecules (Bemcentinib, Ledipasvir, and Velpatasvir) against three receptors (hldD, mlaA, and lptD) was investigated by computing their binding free energies with molecular dynamic (MD) simulation-based MM-PBSA techniques, respectively, and was found to be stable. Therefore, the findings of this study could be useful resources for developing a proper treatment plan against bacterial co-/super-/secondary-infection in SARS-CoV-2 infections.
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Affiliation(s)
- Md. Kaderi Kibria
- Bioinformatics Laboratory, Department of Statistics, University of Rajshahi, Rajshahi 6205, Bangladesh; (M.K.K.); (M.A.A.); (M.A.I.)
- Department of Statistics, Hajee Mohammad Danesh Science and Technology University, Dinajpur 5200, Bangladesh
| | - Md. Ahad Ali
- Bioinformatics Laboratory, Department of Statistics, University of Rajshahi, Rajshahi 6205, Bangladesh; (M.K.K.); (M.A.A.); (M.A.I.)
- Department of Chemistry, University of Rajshahi, Rajshahi 6205, Bangladesh
| | - Muhammad Yaseen
- Institute of Chemical Sciences, University of Swat, Main Campus, Charbagh 19130, Pakistan;
| | - Imran Ahmad Khan
- Department of Chemistry, Government College University, Faisalabad 38000, Pakistan;
| | - Mashooq Ahmad Bhat
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, Riyadh 11421, Saudi Arabia;
| | - Md. Ariful Islam
- Bioinformatics Laboratory, Department of Statistics, University of Rajshahi, Rajshahi 6205, Bangladesh; (M.K.K.); (M.A.A.); (M.A.I.)
| | - Rashidul Alam Mahumud
- NHMRC Clinical Trials Centre, Faculty of Medicine and Health, The University of Sydney, Camperdown, NSW 2006, Australia;
| | - Md. Nurul Haque Mollah
- Bioinformatics Laboratory, Department of Statistics, University of Rajshahi, Rajshahi 6205, Bangladesh; (M.K.K.); (M.A.A.); (M.A.I.)
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8
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Wu L, Hu J, Yi X, Lv J, Yao J, Tang W, Zhang S, Wan M. Gut microbiota interacts with inflammatory responses in acute pancreatitis. Therap Adv Gastroenterol 2023; 16:17562848231202133. [PMID: 37829561 PMCID: PMC10566291 DOI: 10.1177/17562848231202133] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Accepted: 09/01/2023] [Indexed: 10/14/2023] Open
Abstract
Acute pancreatitis (AP) is one of the most common acute abdominal conditions, and its incidence has been increasing for years. Approximately 15-20% of patients develop severe AP (SAP), which is complicated by critical inflammatory injury and intestinal dysfunction. AP-associated inflammation can lead to the gut barrier and function damage, causing dysbacteriosis and facilitating intestinal microbiota migration. Pancreatic exocrine deficiency and decreased levels of antimicrobial peptides in AP can also lead to abnormal growth of intestinal bacteria. Meanwhile, intestinal microbiota migration influences the pancreatic microenvironment and affects the severity of AP, which, in turn, exacerbates the systemic inflammatory response. Thus, the interaction between the gut microbiota (GM) and the inflammatory response may be a key pathogenic feature of SAP. Treating either of these factors or breaking their interaction may offer some benefits for SAP treatment. In this review, we discuss the mechanisms of interaction of the GM and inflammation in AP and factors that can deteriorate or even cure both, including some traditional Chinese medicine treatments, to provide new methods for studying AP pathogenesis and developing therapies.
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Affiliation(s)
- Linjun Wu
- Department of Integrated Traditional Chinese and Western Medicine, West China Hospital, Sichuan University, Chengdu, China
- Hospital of Chinese Traditional Medicine of Leshan, Leshan, China
| | - Jing Hu
- Department of Integrated Traditional Chinese and Western Medicine, West China
- Hospital, Sichuan University, Chengdu, China
- Hospital of Chinese Traditional Medicine of Leshan, Leshan, China
| | - Xiaolin Yi
- Department of Integrated Traditional Chinese and Western Medicine, West China
- Hospital, Sichuan University, Chengdu, China
- Intensive Care Unit, Suining Municipal Hospital of TCM, Suining, China
| | - Jianqin Lv
- Department of Integrated Traditional Chinese and Western Medicine, West China
- Hospital, Sichuan University, Chengdu, China
| | - Jiaqi Yao
- Department of Integrated Traditional Chinese and Western Medicine, West China
- Hospital, Sichuan University, Chengdu, China
| | - Wenfu Tang
- Department of Integrated Traditional Chinese and Western Medicine, West China
- Hospital, Sichuan University, Chengdu, China
| | - Shu Zhang
- Department of Emergency Medicine, Emergency Medical Laboratory, West China
- Hospital, Sichuan University, Guo Xue Road 37, Chengdu 610041, Sichuan, China
| | - Meihua Wan
- Department of Integrated Traditional Chinese and Western Medicine, West China
- Hospital, Sichuan University, Guo Xue Road 37, Chengdu 610041, China
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9
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Lee J, Wellenstein K, Rahnavard A, Nelson AT, Holter MM, Cummings B, Yeliseyev V, Castoldi A, Clish CB, Bry L, Siegel D, Kahn BB. Beneficial metabolic effects of PAHSAs depend on the gut microbiota in diet-induced obese mice. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.09.28.558803. [PMID: 37808673 PMCID: PMC10557726 DOI: 10.1101/2023.09.28.558803] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/10/2023]
Abstract
Dietary lipids play an essential role in regulating the function of the gut microbiota and gastrointestinal tract, and these luminal interactions contribute to mediating host metabolism. PAHSAs are a class of lipids with anti-diabetic and anti-inflammatory properties, but whether the gut microbiota contributes to their beneficial effects on host metabolism is unknown. Here, we report that treating high fat diet (HFD)-fed germ-free mice with PAHSAs does not improve insulin sensitivity. However, transfer of feces from PAHSA-treated, but not Vehicle-treated, chow-fed mice increases insulin-sensitivity in HFD-fed germ free mice. Thus, the gut microbiota is necessary for and can transmit the insulin-sensitizing effects of PAHSAs in HFD-fed germ-free mice. Functional analyses of the cecal metagenome and lipidome of PAHSA-treated mice identified multiple lipid species that associate with the gut commensal Bacteroides thetaiotaomicron ( Bt ) and with insulin sensitivity resulting from PAHSA treatment. Bt supplementation in HFD-fed female mice prevented weight gain, reduced adiposity, improved glucose tolerance, fortified the colonic mucus barrier and reduced systemic inflammation versus chow-fed controls, effects that were not observed in HFD-fed male mice. Furthermore, ovariectomy partially reversed the beneficial Bt effects on host metabolism, indicating a role for sex hormones in mediating probiotic effects. Altogether, these studies highlight the fact that lipids can modulate the gut microbiota resulting in improvement in host metabolism and that PAHSA-induced changes in the microbiota result in at least some of their insulin-sensitizing effects in female mice.
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10
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Goo D, Choi J, Ko H, Choppa VSR, Liu G, Lillehoj HS, Kim WK. Effects of Eimeria maxima infection doses on growth performance and gut health in dual-infection model of necrotic enteritis in broiler chickens. Front Physiol 2023; 14:1269398. [PMID: 37799512 PMCID: PMC10547889 DOI: 10.3389/fphys.2023.1269398] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2023] [Accepted: 08/31/2023] [Indexed: 10/07/2023] Open
Abstract
The objective of this study was to investigate the effects of the different doses of Eimeria maxima (EM) oocysts on growth performance and intestinal health in broiler chickens challenged with a dual infection model of necrotic enteritis (NE) using EM and NetB+ Clostridium perfringens (CP). A total of 432 fourteen-d-old male Cobb 500 broiler chickens were divided into 6 groups with 6 replicates each. The six different groups were as follows: Control, non-challenged; T0+, challenged with CP at 1 × 109 colony forming unit; T5K+, T0+ + 5,000 EM oocysts; T10K+, T0+ + 10,000 EM oocysts; T20K+; T0+ + 20,000 EM oocysts; and T40K+; T0+ + 40,000 EM oocysts. The challenge groups were orally inoculated with EM strain 41A on d 14, followed by NetB+ CP strain Del-1 on 4 days post inoculation (dpi). Increasing EM oocysts decreased d 21 body weight, body weight gain, feed intake (linear and quadratic, p < 0.001), and feed efficiency (linear, p < 0.001) from 0 to 7 dpi. Increasing EM oocysts increased jejunal NE lesion score and intestinal permeability on 5, 6, and 7 dpi (linear, p < 0.05). On 7 dpi, increasing the infection doses of EM oocysts increased jejunal CP colony counts (linear, p < 0.05) and increased fecal EM oocyst output (linear and quadratic, p < 0.001). Furthermore, increasing the infection doses of EM oocysts decreased the villus height to crypt depth ratios and the goblet cell counts (linear, p < 0.05) on 6 dpi. Increasing EM oocysts downregulated the expression of MUC2, B0AT, B0,+AT, PepT1, GLUT2, AvBD3 and 9, LEAP2, and TLR4, while upregulating CLDN1, CATHL3, IL-1β, IFN-γ, TNFSF15, TNF-α, IL-10, and Gam56 and 82 on 6 dpi (linear, p < 0.05). Additionally, increasing EM oocysts decreased Pielou's evenness and Shannon's entropy (linear, p < 0.01). In conclusion, increasing the infection doses of EM significantly aggravated the severity of NE and exerted negative impact on intestinal health from 5 to 7 dpi.
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Affiliation(s)
- Doyun Goo
- Department of Poultry Science, University of Georgia, Athens, GA, United States
| | - Janghan Choi
- Department of Poultry Science, University of Georgia, Athens, GA, United States
| | - Hanseo Ko
- Department of Poultry Science, University of Georgia, Athens, GA, United States
| | | | - Guanchen Liu
- Department of Poultry Science, University of Georgia, Athens, GA, United States
| | - Hyun Soon Lillehoj
- Animal Bioscience and Biotechnology Laboratory, Beltsville Agricultural Research Center, Agricultural Research Service, United States Department of Agriculture, Beltsville, MD, United States
| | - Woo Kyun Kim
- Department of Poultry Science, University of Georgia, Athens, GA, United States
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11
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Inaba R, Vujakovic S, Bergstrom K. The gut mucus network: A dynamic liaison between microbes and the immune system. Semin Immunol 2023; 69:101807. [PMID: 37478802 DOI: 10.1016/j.smim.2023.101807] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/08/2022] [Revised: 06/24/2023] [Accepted: 07/08/2023] [Indexed: 07/23/2023]
Abstract
A complex mucus network made up of large polymers of the mucin-family glycoprotein MUC2 exists between the large intestinal microbial mass and epithelial and immune cells. This has long been understood as an innate immune defense barrier against the microbiota and other luminal threats that reinforces the barrier function of the epithelium and limits microbiota contact with the tissues. However, past and recent studies have provided new evidence of how critical the mucus network is to act as a 'liaison' between host and microbe to mediate anti-inflammatory, mutualistic interactions with the microbiota and protection from pathogens. This review summarizes historical and recent insights into the formation of the gut mucus network, how the microbes and immune system influence mucus, and in turn, how the mucus influences immune responses to the microbiota.
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Affiliation(s)
- Rain Inaba
- Department of Biology, University of British Columbia, Okanagan Campus, 3187 University Way, Kelowna V1V 1V7, British Columbia, Canada
| | - Sara Vujakovic
- Department of Biology, University of British Columbia, Okanagan Campus, 3187 University Way, Kelowna V1V 1V7, British Columbia, Canada
| | - Kirk Bergstrom
- Department of Biology, University of British Columbia, Okanagan Campus, 3187 University Way, Kelowna V1V 1V7, British Columbia, Canada.
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12
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Li X, Xu L, Peng X, Zhang H, Kang M, Jiang Y, Shi H, Chen H, Zhao C, Yu Y, Ma R, Li X, Cao Y. The alleviating effect of ellagic acid on DSS-induced colitis via regulating gut microbiomes and gene expression of colonic epithelial cells. Food Funct 2023; 14:7550-7561. [PMID: 37526638 DOI: 10.1039/d3fo01226c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/02/2023]
Abstract
The anti-inflammatory effect of ellagic acid (EA) and its possible underlying mechanism in dextran sulfate sodium (DSS)-induced mouse chronic colonic inflammation were studied. It was observed that EA administration significantly alleviated the colonic inflammation phenotypes, including decreasing the disease activity index (DAI), enhancing the body weight loss, and improving the shortened length of the colon and pathological damage of colon tissue. Additionally, EA reshaped the constitution of the gut microbiota by elevating the ratio of Bacteroidetes along with Bacteroides and Muribaculaceae, while decreasing the proportion of Firmicutes. The Phylogenetic Investigation of Communities by Reconstruction of Unobserved States 2 (PICRUSt2) revealed that the metabolic function of the gut microbiota was also changed. Furthermore, mouse colon transcriptome analysis showed that the tight junction and peroxisome proliferator-activated receptor (PPAR) signaling pathways were activated and the expressions of related genes were upregulated after EA intervention. These results showed that EA could remodel the gut bacterial composition, change the intestinal epithelial cell gene expressions in mice, and consequently improve the colonic inflammatory symptoms.
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Affiliation(s)
- Xiaoqing Li
- Guangdong Provincial Key Laboratory of Nutraceuticals and Functional Foods, College of Food Science, South China Agricultural University, 483 Wushan Road, Tianhe District, Guangzhou City, Guangdong Province, 510642, China.
- College of Food Science and Engineering, South China University of Technology, Guangzhou 510006, China
| | - Lu Xu
- Guangdong Provincial Key Laboratory of Nutraceuticals and Functional Foods, College of Food Science, South China Agricultural University, 483 Wushan Road, Tianhe District, Guangzhou City, Guangdong Province, 510642, China.
| | - Xinan Peng
- Guangdong Provincial Key Laboratory of Nutraceuticals and Functional Foods, College of Food Science, South China Agricultural University, 483 Wushan Road, Tianhe District, Guangzhou City, Guangdong Province, 510642, China.
| | - Huiting Zhang
- Guangdong Provincial Key Laboratory of Nutraceuticals and Functional Foods, College of Food Science, South China Agricultural University, 483 Wushan Road, Tianhe District, Guangzhou City, Guangdong Province, 510642, China.
| | - Meng Kang
- Guangdong Provincial Key Laboratory of Nutraceuticals and Functional Foods, College of Food Science, South China Agricultural University, 483 Wushan Road, Tianhe District, Guangzhou City, Guangdong Province, 510642, China.
| | - Yiqi Jiang
- Guangdong Provincial Key Laboratory of Nutraceuticals and Functional Foods, College of Food Science, South China Agricultural University, 483 Wushan Road, Tianhe District, Guangzhou City, Guangdong Province, 510642, China.
| | - Haibo Shi
- College of Food Science and Engineering, South China University of Technology, Guangzhou 510006, China
| | - Haiyan Chen
- Guangdong Testing Institute of Product Quality Supervision (GQI), Foshan, 528300, China
| | - Chao Zhao
- College of Marine Sciences, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Yigang Yu
- College of Food Science and Engineering, South China University of Technology, Guangzhou 510006, China
| | - Ruiting Ma
- Eastroc Beverage Group Co., Ltd, Shenzhen, 518057, China
| | - Xueli Li
- Eastroc Beverage Group Co., Ltd, Shenzhen, 518057, China
| | - Yong Cao
- Guangdong Provincial Key Laboratory of Nutraceuticals and Functional Foods, College of Food Science, South China Agricultural University, 483 Wushan Road, Tianhe District, Guangzhou City, Guangdong Province, 510642, China.
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Ma L, Ling C, Hu S, Ye S, Chen C. High-throughput transcriptome sequencing reveals the protective role of adenosine receptor-related genes in paraquat-exposed Caenorhabditis elegans. Toxicol Res (Camb) 2023; 12:564-573. [PMID: 37663816 PMCID: PMC10470339 DOI: 10.1093/toxres/tfad046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2023] [Revised: 06/01/2023] [Accepted: 06/02/2023] [Indexed: 09/05/2023] Open
Abstract
This study sought to identify the genes associated with adenosine's protective action against paraquat (PQ)-induced oxidative stress via the adenosine receptor (ADOR-1) in Caenorhabditis elegans (C. elegans). The C. elegans was divided into 3 groups-2 groups exposed to PQ, one in presence, and one in absence of adenosine-and a control group that was not treated. Each group's total RNA was extracted and sequenced. When the transcriptomes of these groups were analyzed, several genes were found to be differently expressed. These differentially expressed genes were significantly enriched in adenosine-response biological processes and pathways, including gene ontology terms related to neuropeptide and kyoto encyclopedia of genes and genomes pathways associated to cAMP pathway regulator activity. Quantitative reverse-transcription PCR confirmed that G-protein-coupled receptors signaling pathway involving dop-1, egl-30, unc-13, kin-1, and goa-1 genes may play crucial roles in modulating adenosine's protective action. Interestingly, there are no significant variations in the expression of the ador-1 gene across the 3 treatments, thereby indicating that adenosine receptor exerts a consistent and stable influence on its related pathways irrespective of the presence or absence of PQ. Furthermore, the wild-type group with ador-1 gene has higher survival rate than that of the ador-1-/RNA interference group while treated with PQ in the presence of adenosine. Conclusively, our study uncovered a number of novel PQ-response genes and adenosine receptor-related genes in C. elegans, which may function as major regulators of PQ-induced oxidative stress and indicate the possible protective effects of adenosine.
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Affiliation(s)
- Lingmei Ma
- College of Life Sciences, Engineering Training Centre/College of Innovation, China Jiliang University, Hangzhou 310018, China
| | - Chunyan Ling
- College of Life Sciences, Engineering Training Centre/College of Innovation, China Jiliang University, Hangzhou 310018, China
| | - Shuning Hu
- College of Life Sciences, Engineering Training Centre/College of Innovation, China Jiliang University, Hangzhou 310018, China
| | - Sudan Ye
- College of Applied Engineering, Zhejiang Institute of Economics and Trade, Hangzhou 310018, China
| | - Chun Chen
- College of Life Sciences, Engineering Training Centre/College of Innovation, China Jiliang University, Hangzhou 310018, China
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14
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Verjan Garcia N, Hong KU, Matoba N. The Unfolded Protein Response and Its Implications for Novel Therapeutic Strategies in Inflammatory Bowel Disease. Biomedicines 2023; 11:2066. [PMID: 37509705 PMCID: PMC10377089 DOI: 10.3390/biomedicines11072066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2023] [Accepted: 07/20/2023] [Indexed: 07/30/2023] Open
Abstract
The endoplasmic reticulum (ER) is a multifunctional organelle playing a vital role in maintaining cell homeostasis, and disruptions to its functions can have detrimental effects on cells. Dysregulated ER stress and the unfolded protein response (UPR) have been linked to various human diseases. For example, ER stress and the activation of the UPR signaling pathways in intestinal epithelial cells can either exacerbate or alleviate the severity of inflammatory bowel disease (IBD), contingent on the degree and conditions of activation. Our recent studies have shown that EPICERTIN, a recombinant variant of the cholera toxin B subunit containing an ER retention motif, can induce a protective UPR in colon epithelial cells, subsequently promoting epithelial restitution and mucosal healing in IBD models. These findings support the idea that compounds modulating UPR may be promising pharmaceutical candidates for the treatment of the disease. In this review, we summarize our current understanding of the ER stress and UPR in IBD, focusing on their roles in maintaining cell homeostasis, dysregulation, and disease pathogenesis. Additionally, we discuss therapeutic strategies that promote the cytoprotection of colon epithelial cells and reduce inflammation via pharmacological manipulation of the UPR.
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Affiliation(s)
- Noel Verjan Garcia
- UofL Health-Brown Cancer Center, University of Louisville School of Medicine, Louisville, KY 40202, USA
| | - Kyung U Hong
- UofL Health-Brown Cancer Center, University of Louisville School of Medicine, Louisville, KY 40202, USA
- Department of Pharmacology and Toxicology, University of Louisville School of Medicine, Louisville, KY 40202, USA
| | - Nobuyuki Matoba
- UofL Health-Brown Cancer Center, University of Louisville School of Medicine, Louisville, KY 40202, USA
- Department of Pharmacology and Toxicology, University of Louisville School of Medicine, Louisville, KY 40202, USA
- Center for Predictive Medicine, University of Louisville School of Medicine, Louisville, KY 40202, USA
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15
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El-Demerdash AS, Mohamady SN, Megahed HM, Ali NM. Evaluation of gene expression related to immunity, apoptosis, and gut integrity that underlies Artemisia's therapeutic effects in necrotic enteritis-challenged broilers. 3 Biotech 2023; 13:181. [PMID: 37193331 PMCID: PMC10182211 DOI: 10.1007/s13205-023-03560-9] [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: 12/08/2022] [Accepted: 04/15/2023] [Indexed: 05/18/2023] Open
Abstract
The experiment was designed to validate the effect of Artemisia annua and its novel commercial product (Navy Cox) on the control of necrotic enteritis (NE). A total of one hundred forty broiler chicks were randomly distributed into seven equal groups: G1, control negative; G2, infected with Eimeria (day 15) and C. perfringens (day 19); G3, treated with Navy Cox before challenge; G4, treated with Artemisia before challenge; G5, infected and then treated with Navy Cox; G6, infected and then treated with Artemisia; and G7, infected and treated with amoxicillin. Chicken response and immune organ indicants were recorded during the observation period (4 weeks). Whole blood and serum samples were collected for immunological evaluation, and tissue samples were collected for bacterial counts and estimation of mRNA expression of genes encoding apoptosis, tight junctions, and immunity. Chickens in the infected group revealed a significant decrease in RBCS, HB, PCV% total protein, Lysozyme, and nitric oxide activity in addition to leukocytosis, heterophilia, monocytosis, increase in cortisol, interleukins, and malondialdehyde. Treated groups displayed lower lesions, colony-forming units, and no mortality. Concurrently, a complete blood profile, antioxidants, and immune markers showed significant improvements. The mRNA expression levels of CASP, CLDN-1, OCLN, TJPI, MUC2, and cell-mediated immune response genes (p < 0.0001) were significantly alleviated in the treated groups compared with the challenged counterpart. This is the first-ever report on the efficacy valuation of Navy Cox compared to standard antibiotic treatment of clostridial NE. Navy Cox proved remarkable capability to minimize C. perfringens colonization in broiler intestines, modulation of mucus production, gut health integrity, immune organs, and immune response when used as a prophylactic agent in this form or naturally as Artemisia.
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Affiliation(s)
- Azza S. El-Demerdash
- Microbiology Department, Agriculture Research Center (ARC), Animal Health Research Institute (AHRI), Zagazig, Egypt
| | - Sahar N. Mohamady
- Clinical Pathology Department, Agriculture Research Center (ARC), Animal Health Research Institute (AHRI), Zagazig, Egypt
| | - Hend M. Megahed
- Biochemistry Department, Agriculture Research Center (ARC), Animal Health Research Institute (AHRI), Zagazig, Egypt
| | - Naglaa M. Ali
- Poultry Disease Department, Agriculture Research Center (ARC), Animal Health Research Institute (AHRI), Assuit, Egypt
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16
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Devi MB, Sarma HK, Mukherjee AK, Khan MR. Mechanistic Insights into Immune-Microbiota Interactions and Preventive Role of Probiotics Against Autoimmune Diabetes Mellitus. Probiotics Antimicrob Proteins 2023:10.1007/s12602-023-10087-1. [PMID: 37171690 DOI: 10.1007/s12602-023-10087-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/04/2023] [Indexed: 05/13/2023]
Abstract
Recent studies on genetically susceptible individuals and animal models revealed the potential role of the intestinal microbiota in the pathogenesis of type 1 diabetes (T1D) through complex interactions with the immune system. T1D incidence has been increasing exponentially with modern lifestyle altering normal microbiota composition, causing dysbiosis characterized by an imbalance in the gut microbial community. Dysbiosis has been suggested to be a potential contributing factor in T1D. Moreover, several studies have shown the potential role of probiotics in regulating T1D through various mechanisms. Current T1D therapies target curative measures; however, preventive therapeutics are yet to be proven. This review highlights immune microbiota interaction and the immense role of probiotics and postbiotics as important immunological interventions for reducing the risk of T1D.
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Affiliation(s)
- M Bidyarani Devi
- Molecular Biology and Microbial Biotechnology Laboratory, Life Sciences Division, Institute of Advanced Study in Science and Technology (IASST), Guwahati, Assam, India
- Department of Biotechnology, Gauhati University, Guwahati, Assam, India
| | | | - Ashis K Mukherjee
- Molecular Biology and Microbial Biotechnology Laboratory, Life Sciences Division, Institute of Advanced Study in Science and Technology (IASST), Guwahati, Assam, India
| | - Mojibur R Khan
- Molecular Biology and Microbial Biotechnology Laboratory, Life Sciences Division, Institute of Advanced Study in Science and Technology (IASST), Guwahati, Assam, India.
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17
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Liu Y, Yu Z, Zhu L, Ma S, Luo Y, Liang H, Liu Q, Chen J, Guli S, Chen X. Orchestration of MUC2 - The key regulatory target of gut barrier and homeostasis: A review. Int J Biol Macromol 2023; 236:123862. [PMID: 36870625 DOI: 10.1016/j.ijbiomac.2023.123862] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Revised: 02/22/2023] [Accepted: 02/24/2023] [Indexed: 03/06/2023]
Abstract
The gut mucosa of human is covered by mucus, functioning as a crucial defense line for the intestine against external stimuli and pathogens. Mucin2 (MUC2) is a subtype of secretory mucins generated by goblet cells and is the major macromolecular component of mucus. Currently, there is an increasing interest on the investigations of MUC2, noting that its function is far beyond a maintainer of the mucus barrier. Moreover, numerous gut diseases are associated with dysregulated MUC2 production. Appropriate production level of MUC2 and mucus contributes to gut barrier function and homeostasis. The production of MUC2 is regulated by a series of physiological processes, which are orchestrated by various bioactive molecules, signaling pathways and gut microbiota, etc., forming a complex regulatory network. Incorporating the latest findings, this review provided a comprehensive summary of MUC2, including its structure, significance and secretory process. Furthermore, we also summarized the molecular mechanisms of the regulation of MUC2 production aiming to provide developmental directions for future researches on MUC2, which can act as a potential prognostic indicator and targeted therapeutic manipulation for diseases. Collectively, we elucidated the micro-level mechanisms underlying MUC2-related phenotypes, hoping to offer some constructive guidance for intestinal and overall health of mankind.
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Affiliation(s)
- Yaxin Liu
- Department of Gastroenterology and Hepatology, Tianjin Medical University General Hospital, Anshan Road 154, Heping District, Tianjin 300052, China; Tianjin Institute of Digestive Disease, Tianjin Medical University General Hospital, Anshan Road 154, Heping District, Tianjin 300052, China
| | - Zihan Yu
- Department of Gastroenterology and Hepatology, Tianjin Medical University General Hospital, Anshan Road 154, Heping District, Tianjin 300052, China; Tianjin Institute of Digestive Disease, Tianjin Medical University General Hospital, Anshan Road 154, Heping District, Tianjin 300052, China
| | - Lanping Zhu
- Department of Gastroenterology and Hepatology, Tianjin Medical University General Hospital, Anshan Road 154, Heping District, Tianjin 300052, China; Tianjin Institute of Digestive Disease, Tianjin Medical University General Hospital, Anshan Road 154, Heping District, Tianjin 300052, China
| | - Shuang Ma
- Department of Gastroenterology and Hepatology, Tianjin Medical University General Hospital, Anshan Road 154, Heping District, Tianjin 300052, China; Tianjin Institute of Digestive Disease, Tianjin Medical University General Hospital, Anshan Road 154, Heping District, Tianjin 300052, China
| | - Yang Luo
- Department of Gastroenterology and Hepatology, Tianjin Medical University General Hospital, Anshan Road 154, Heping District, Tianjin 300052, China; Tianjin Institute of Digestive Disease, Tianjin Medical University General Hospital, Anshan Road 154, Heping District, Tianjin 300052, China
| | - Huixi Liang
- Department of Gastroenterology and Hepatology, Tianjin Medical University General Hospital, Anshan Road 154, Heping District, Tianjin 300052, China; Tianjin Institute of Digestive Disease, Tianjin Medical University General Hospital, Anshan Road 154, Heping District, Tianjin 300052, China
| | - Qinlingfei Liu
- Department of Gastroenterology and Hepatology, Tianjin Medical University General Hospital, Anshan Road 154, Heping District, Tianjin 300052, China; Tianjin Institute of Digestive Disease, Tianjin Medical University General Hospital, Anshan Road 154, Heping District, Tianjin 300052, China
| | - Jihua Chen
- Department of Gastroenterology and Hepatology, Tianjin Medical University General Hospital, Anshan Road 154, Heping District, Tianjin 300052, China; Tianjin Institute of Digestive Disease, Tianjin Medical University General Hospital, Anshan Road 154, Heping District, Tianjin 300052, China
| | - Sitan Guli
- Department of Gastroenterology and Hepatology, Tianjin Medical University General Hospital, Anshan Road 154, Heping District, Tianjin 300052, China; Tianjin Institute of Digestive Disease, Tianjin Medical University General Hospital, Anshan Road 154, Heping District, Tianjin 300052, China
| | - Xin Chen
- Department of Gastroenterology and Hepatology, Tianjin Medical University General Hospital, Anshan Road 154, Heping District, Tianjin 300052, China; Tianjin Institute of Digestive Disease, Tianjin Medical University General Hospital, Anshan Road 154, Heping District, Tianjin 300052, China.
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18
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Balasubramanian A, Ghimire L, Hsu AY, Kambara H, Liu X, Hasegawa T, Xu R, Tahir M, Yu H, Lieberman J, Luo HR. Palmitoylation of gasdermin D directs its membrane translocation and pore formation in pyroptosis. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.02.21.529402. [PMID: 36865189 PMCID: PMC9980122 DOI: 10.1101/2023.02.21.529402] [Citation(s) in RCA: 16] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/24/2023]
Abstract
Gasdermin D (GSDMD)-mediated macrophage pyroptosis plays a critical role in inflammation and host defense. Plasma membrane perforation elicited by caspase-cleaved GSDMD N-terminal domain (GSDMD-NT) triggers membrane rupture and subsequent pyroptotic cell death, resulting in release of pro-inflammatory IL-1β and IL-18. However, the biological processes leading to its membrane translocation and pore formation are not fully understood. Here, using a proteomics approach, we identified fatty acid synthase (FASN) as a GSDMD-binding partner and demonstrated that post-translational palmitoylation of GSDMD at Cys191/Cys192 (human/mouse) led to membrane translocation of GSDMD-NT but not full-length GSDMD. GSDMD lipidation, mediated by palmitoyl acyltransferases ZDHHC5/9 and facilitated by LPS-induced reactive oxygen species (ROS), was essential for GSDMD pore-forming activity and pyroptosis. Inhibition of GSDMD palmitoylation with palmitate analog 2-bromopalmitate or a cell permeable GSDMD-specific competing peptide suppressed pyroptosis and IL-1β release in macrophages, mitigated organ damage, and extended the survival of septic mice. Collectively, we establish GSDMD-NT palmitoylation as a key regulatory mechanism controlling GSDMD membrane localization and activation, providing a novel target for modulating immune activity in infectious and inflammatory diseases. One Sentence Summary LPS-induced palmitoylation at Cys191/Cys192 is required for GSDMD membrane translocation and its pore-forming activity in macrophages.
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19
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Vallier M, Suwandi A, Ehrhardt K, Belheouane M, Berry D, Čepić A, Galeev A, Johnsen JM, Grassl GA, Baines JF. Pathometagenomics reveals susceptibility to intestinal infection by Morganella to be mediated by the blood group-related B4galnt2 gene in wild mice. Gut Microbes 2023; 15:2164448. [PMID: 36683151 PMCID: PMC9872957 DOI: 10.1080/19490976.2022.2164448] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Revised: 12/15/2022] [Accepted: 12/28/2022] [Indexed: 01/24/2023] Open
Abstract
Infectious disease is widely considered to be a major driver of evolution. A preponderance of signatures of balancing selection at blood group-related genes is thought to be driven by inherent trade-offs in susceptibility to disease. B4galnt2 is subject to long-term balancing selection in house mice, where two divergent allele classes direct alternative tissue-specific expression of a glycosyltransferase in the intestine versus blood vessels. The blood vessel allele class leads to prolonged bleeding times similar to von Willebrand disease in humans, yet has been maintained for millions of years. Based on in vivo functional studies in inbred lab strains, it is hypothesized that the cost of prolonged bleeding times may be offset by an evolutionary trade-off involving susceptibility to a yet unknown pathogen(s). To identify candidate pathogens for which resistance could be mediated by B4galnt2 genotype, we here employed a novel "pathometagenomic" approach in a wild mouse population, which combines bacterial 16S rRNA gene-based community profiling with histopathology of gut tissue. Through subsequent isolation, genome sequencing and controlled experiments in lab mice, we show that the presence of the blood vessel allele is associated with resistance to a newly identified subspecies of Morganella morganii, a clinically important opportunistic pathogen. Given the increasing importance of zoonotic events, the approach outlined here may find useful application in the detection of emerging diseases in wild animal populations.
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Affiliation(s)
- Marie Vallier
- Section of Evolutionary Medicine, Institute for Experimental Medicine, Kiel University, Kiel, Germany
- Guest Group Evolutionary Medicine, Max Planck Institute for Evolutionary Biology, Plön, Germany
| | - Abdulhadi Suwandi
- Institute of Medical Microbiology and Hospital Epidemiology, Hannover Medical School, Hannover, Germany
- German Center for Infection Research (DZIF), Hannover, Germany
| | - Katrin Ehrhardt
- Institute of Medical Microbiology and Hospital Epidemiology, Hannover Medical School, Hannover, Germany
- German Center for Infection Research (DZIF), Hannover, Germany
| | - Meriem Belheouane
- Section of Evolutionary Medicine, Institute for Experimental Medicine, Kiel University, Kiel, Germany
- Guest Group Evolutionary Medicine, Max Planck Institute for Evolutionary Biology, Plön, Germany
| | - David Berry
- Centre for Microbiology and Environmental Systems Science, Department of Microbiology and Ecosystem Science, Division of Microbial Ecology, University of Vienna, Vienna, Austria
- Joint Microbiome Facility of the Medical University of Vienna and the University of Vienna, Vienna, Austria
| | - Aleksa Čepić
- Section of Evolutionary Medicine, Institute for Experimental Medicine, Kiel University, Kiel, Germany
- Guest Group Evolutionary Medicine, Max Planck Institute for Evolutionary Biology, Plön, Germany
| | - Alibek Galeev
- Section of Evolutionary Medicine, Institute for Experimental Medicine, Kiel University, Kiel, Germany
- Guest Group Evolutionary Medicine, Max Planck Institute for Evolutionary Biology, Plön, Germany
| | - Jill M. Johnsen
- Bloodworks Research Institute, Seattle, WA, USA
- Department of Medicine, University of Washington, Seattle, WA, USA
| | - Guntram A. Grassl
- Institute of Medical Microbiology and Hospital Epidemiology, Hannover Medical School, Hannover, Germany
- German Center for Infection Research (DZIF), Hannover, Germany
| | - John F. Baines
- Section of Evolutionary Medicine, Institute for Experimental Medicine, Kiel University, Kiel, Germany
- Guest Group Evolutionary Medicine, Max Planck Institute for Evolutionary Biology, Plön, Germany
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20
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Shang S, Liu J, Hua F. Protein acylation: mechanisms, biological functions and therapeutic targets. Signal Transduct Target Ther 2022; 7:396. [PMID: 36577755 PMCID: PMC9797573 DOI: 10.1038/s41392-022-01245-y] [Citation(s) in RCA: 26] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Revised: 09/27/2022] [Accepted: 11/06/2022] [Indexed: 12/30/2022] Open
Abstract
Metabolic reprogramming is involved in the pathogenesis of not only cancers but also neurodegenerative diseases, cardiovascular diseases, and infectious diseases. With the progress of metabonomics and proteomics, metabolites have been found to affect protein acylations through providing acyl groups or changing the activities of acyltransferases or deacylases. Reciprocally, protein acylation is involved in key cellular processes relevant to physiology and diseases, such as protein stability, protein subcellular localization, enzyme activity, transcriptional activity, protein-protein interactions and protein-DNA interactions. Herein, we summarize the functional diversity and mechanisms of eight kinds of nonhistone protein acylations in the physiological processes and progression of several diseases. We also highlight the recent progress in the development of inhibitors for acyltransferase, deacylase, and acylation reader proteins for their potential applications in drug discovery.
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Affiliation(s)
- Shuang Shang
- grid.506261.60000 0001 0706 7839CAMS Key Laboratory of Molecular Mechanism and Target Discovery of Metabolic Disorder and Tumorigenesis, State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, 100050 Beijing, P.R. China
| | - Jing Liu
- grid.506261.60000 0001 0706 7839CAMS Key Laboratory of Molecular Mechanism and Target Discovery of Metabolic Disorder and Tumorigenesis, State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, 100050 Beijing, P.R. China
| | - Fang Hua
- grid.506261.60000 0001 0706 7839CAMS Key Laboratory of Molecular Mechanism and Target Discovery of Metabolic Disorder and Tumorigenesis, State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, 100050 Beijing, P.R. China
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21
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Roca-Lema D, Quiroga M, Khare V, Díaz-Díaz A, Barreiro-Alonso A, Rodríguez-Alonso A, Concha Á, Romay G, Cerdán ME, Gasche C, Figueroa A. Role of the E3 ubiquitin-ligase Hakai in intestinal inflammation and cancer bowel disease. Sci Rep 2022; 12:17571. [PMID: 36266428 PMCID: PMC9584894 DOI: 10.1038/s41598-022-22295-w] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2022] [Accepted: 10/12/2022] [Indexed: 01/13/2023] Open
Abstract
The E3 ubiquitin-ligases are important for cellular protein homeostasis and their deregulation is implicated in cancer. The E3 ubiquitin-ligase Hakai is involved in tumour progression and metastasis, through the regulation of the tumour suppressor E-cadherin. Hakai is overexpressed in colon cancer, however, the implication in colitis-associated cancer is unknown. Here, we investigated the potential role of Hakai in intestinal inflammation and cancer bowel disease. Several mouse models of colitis and associated cancer were used to analyse Hakai expression by immunohistochemistry. We also analysed Hakai expression in patients with inflamed colon biopsies from ulcerative colitis and Crohn's disease. By Hakai interactome analysis, it was identified Fatty Acid Synthase (FASN) as a novel Hakai-interacting protein. Moreover, we show that Hakai induces FASN ubiquitination and degradation via lysosome, thus regulating FASN-mediated lipid accumulation. An inverse expression of FASN and Hakai was detected in inflammatory AOM/DSS mouse model. In conclusion, Hakai regulates FASN ubiquitination and degradation, resulting in the regulation of FASN-mediated lipid accumulation, which is associated to the development of inflammatory bowel disease. The interaction between Hakai and FASN may be an important mechanism for the homeostasis of intestinal barrier function and in the pathogenesis of this disease.
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Affiliation(s)
- Daniel Roca-Lema
- grid.8073.c0000 0001 2176 8535Epithelial Plasticity and Metastasis Group, Instituto de Investigación Biomédica de A Coruña (INIBIC), Complexo Hospitalario Universitario de A Coruña (CHUAC), Sergas, Universidade da Coruña (UDC), As Xubias, 15006 A Coruña, Spain
| | - Macarena Quiroga
- grid.8073.c0000 0001 2176 8535Epithelial Plasticity and Metastasis Group, Instituto de Investigación Biomédica de A Coruña (INIBIC), Complexo Hospitalario Universitario de A Coruña (CHUAC), Sergas, Universidade da Coruña (UDC), As Xubias, 15006 A Coruña, Spain
| | - Vineeta Khare
- grid.22937.3d0000 0000 9259 8492Division of Gastroenterology and Hepatology, Department of Internal Medicine III, Medical University of Vienna, Vienna, Austria
| | - Andrea Díaz-Díaz
- grid.8073.c0000 0001 2176 8535Epithelial Plasticity and Metastasis Group, Instituto de Investigación Biomédica de A Coruña (INIBIC), Complexo Hospitalario Universitario de A Coruña (CHUAC), Sergas, Universidade da Coruña (UDC), As Xubias, 15006 A Coruña, Spain
| | - Aida Barreiro-Alonso
- grid.18886.3fFunctional Proteomics Group, Chester Beatty Laboratories, Institute of Cancer Research, London, UK ,grid.8073.c0000 0001 2176 8535EXPRELA, Centro de Investigacións Científicas Avanzadas (CICA), Departamento de BioloxíaFacultade de Ciencias, Universidade da Coruña, Campus da Zapateira, A Coruña, Spain
| | - Andrea Rodríguez-Alonso
- grid.8073.c0000 0001 2176 8535Epithelial Plasticity and Metastasis Group, Instituto de Investigación Biomédica de A Coruña (INIBIC), Complexo Hospitalario Universitario de A Coruña (CHUAC), Sergas, Universidade da Coruña (UDC), As Xubias, 15006 A Coruña, Spain
| | - Ángel Concha
- grid.411066.40000 0004 1771 0279Pathology Department and A Coruña Biobank From INIBIC, CHUAC, Sergas, UDC, A Coruña, Spain
| | - Gabriela Romay
- grid.8073.c0000 0001 2176 8535Epithelial Plasticity and Metastasis Group, Instituto de Investigación Biomédica de A Coruña (INIBIC), Complexo Hospitalario Universitario de A Coruña (CHUAC), Sergas, Universidade da Coruña (UDC), As Xubias, 15006 A Coruña, Spain
| | - M. Esperanza Cerdán
- grid.8073.c0000 0001 2176 8535EXPRELA, Centro de Investigacións Científicas Avanzadas (CICA), Departamento de BioloxíaFacultade de Ciencias, Universidade da Coruña, Campus da Zapateira, A Coruña, Spain
| | - Christoph Gasche
- grid.22937.3d0000 0000 9259 8492Division of Gastroenterology and Hepatology, Department of Internal Medicine III, Medical University of Vienna, Vienna, Austria
| | - Angélica Figueroa
- grid.8073.c0000 0001 2176 8535Epithelial Plasticity and Metastasis Group, Instituto de Investigación Biomédica de A Coruña (INIBIC), Complexo Hospitalario Universitario de A Coruña (CHUAC), Sergas, Universidade da Coruña (UDC), As Xubias, 15006 A Coruña, Spain
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22
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Ko SH, Lim Y, Kim EJ, Ko YW, Hong IS, Kim S, Jung Y. Antarctic Marine Algae Extracts as a Potential Natural Resource to Protect Epithelial Barrier Integrity. Mar Drugs 2022; 20:562. [PMID: 36135751 PMCID: PMC9503798 DOI: 10.3390/md20090562] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Revised: 08/24/2022] [Accepted: 08/28/2022] [Indexed: 11/17/2022] Open
Abstract
The intestine and skin provide crucial protection against the external environment. Strengthening the epithelial barrier function of these organs is critical for maintaining homeostasis against inflammatory stimuli. Recent studies suggest that polar marine algae are a promising bioactive resource because of their adaptation to extreme environments. To investigate the bioactive properties of polar marine algae on epithelial cells of the intestine and skin, we created extracts of the Antarctic macroalgae Himantothallus grandifolius, Plocamium cartilagineum, Phaeurus antarcticus, and Kallymenia antarctica, analyzed the compound profiles of the extracts using gas chromatography-mass spectrometry, and tested the protective activities of the extracts on human intestinal and keratinocyte cell lines by measuring cell viability and reactive oxygen species scavenging. In addition, we assessed immune responses modulated by the extracts by real-time polymerase chain reaction, and we monitored the barrier-protective activities of the extracts on intestinal and keratinocyte cell lines by measuring transepithelial electrical resistance and fluorescence-labeled dextran flux, respectively. We identified bioactive compounds, including several fatty acids and lipid compounds, in the extracts, and found that the extracts perform antioxidant activities that remove intracellular reactive oxygen species and scavenge specific radicals. Furthermore, the Antarctic marine algae extracts increased cell viability, protected cells against inflammatory stimulation, and increased the barrier integrity of cells damaged by lipopolysaccharide or ultraviolet radiation. These results suggest that Antarctic marine algae have optimized their composition for polar environments, and furthermore, that the bioactive properties of compounds produced by Antarctic marine algae can potentially be used to develop therapeutics to promote the protective barrier function of the intestine and skin.
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Affiliation(s)
- Seong-Hee Ko
- Department of Microbiology, College of Medicine, Gachon University, Incheon 21999, Korea
- Lee Gil Ya Cancer and Diabetes Institute, Gachon University, Incheon 21999, Korea
| | - YoonHee Lim
- Department of Microbiology, College of Medicine, Gachon University, Incheon 21999, Korea
- Lee Gil Ya Cancer and Diabetes Institute, Gachon University, Incheon 21999, Korea
| | - Eun Jae Kim
- Division of Life Sciences, Korea Polar Research Institute, Incheon 21990, Korea
| | - Young Wook Ko
- Division of Life Sciences, Korea Polar Research Institute, Incheon 21990, Korea
| | - In-Sun Hong
- Lee Gil Ya Cancer and Diabetes Institute, Gachon University, Incheon 21999, Korea
- Department of Molecular Medicine, College of Medicine, Gachon University, Incheon 21999, Korea
- Department of Health Science and Technology, Gachon Advanced Institute for Health Science & Technology, Gachon University, Incheon 21999, Korea
| | - Sanghee Kim
- Division of Life Sciences, Korea Polar Research Institute, Incheon 21990, Korea
| | - YunJae Jung
- Department of Microbiology, College of Medicine, Gachon University, Incheon 21999, Korea
- Lee Gil Ya Cancer and Diabetes Institute, Gachon University, Incheon 21999, Korea
- Department of Health Science and Technology, Gachon Advanced Institute for Health Science & Technology, Gachon University, Incheon 21999, Korea
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23
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Xie X, Zhang M, Sun L, Wang T, Zhu Z, Shu R, Wu F, Li Z. Crocin-I Protects Against High-Fat Diet-Induced Obesity via Modulation of Gut Microbiota and Intestinal Inflammation in Mice. Front Pharmacol 2022; 13:894089. [PMID: 36034852 PMCID: PMC9403484 DOI: 10.3389/fphar.2022.894089] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Accepted: 06/06/2022] [Indexed: 12/05/2022] Open
Abstract
Crocin-I can regulate physiological changes in the human body by altering inflammation and microbial composition. Gut microbiota are also involved in modulating the pathophysiology of obesity. However, crocin-I’s effect on obesity and the mechanism underlying its effects on gut microbiota and inflammation remain poorly understood. Here, high-fat diet (HFD) -induced obese mice were administrated crocin-I (20 mg/kg/day) for 10 weeks using an oral gavage (HFD-C20 group). HFD-C20, HFD, and Normal chow (NC) groups were compared. The fat content, colon tissue inflammatory cytokine levels, gut microbiota, and short-chain fatty acids (SCFAs) levels were measured. We show that crocin-I reduced body weight and liver weight and improved glucose resistance in HFD-induced mice, and reduced the lipid accumulation in the liver. Strikingly, crocin-I alleviated intestinal microbial disorders and decreased the F/B ratio and the abundance of Proteobacteria in HFD-induced obese mice. Crocin-I also rescued the decrease in the levels of SCFAs and repaired altered intestinal barrier functioning and intestinal inflammation in HFD-induced obese mice. These findings indicate that crocin-I may inhibit obesity by modulating the composition of gut microbiota and intestinal inflammation.
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Affiliation(s)
- Xiaoxian Xie
- College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, China
| | - Mengya Zhang
- College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, China
| | - Lei Sun
- College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, China
| | - Ting Wang
- College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, China
| | - Zhengyan Zhu
- College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, China
| | - Ruonan Shu
- College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, China
| | - Fengchun Wu
- Department of Psychiatry, The Affiliated Brain Hospital of Guangzhou Medical University, Guangzhou, China
- Guangdong Engineering Technology Research Center for Translational Medicine of Mental Disorders, Guangzhou, China
- *Correspondence: Fengchun Wu, ; Zezhi Li,
| | - Zezhi Li
- Department of Psychiatry, The Affiliated Brain Hospital of Guangzhou Medical University, Guangzhou, China
- Guangdong Engineering Technology Research Center for Translational Medicine of Mental Disorders, Guangzhou, China
- *Correspondence: Fengchun Wu, ; Zezhi Li,
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24
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Ducheix S, Piccinin E, Peres C, Garcia-Irigoyen O, Bertrand-Michel J, Fouache A, Cariello M, Lobaccaro JM, Guillou H, Sabbà C, Ntambi JM, Moschetta A. Reduction in gut-derived MUFAs via intestinal stearoyl-CoA desaturase 1 deletion drives susceptibility to NAFLD and hepatocarcinoma. Hepatol Commun 2022; 6:2937-2949. [PMID: 35903850 PMCID: PMC9512486 DOI: 10.1002/hep4.2053] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Revised: 06/21/2022] [Accepted: 07/06/2022] [Indexed: 11/15/2022] Open
Abstract
Nonalcoholic fatty liver disease (NAFLD) is defined by a set of hepatic conditions ranging from steatosis to steatohepatitis (NASH), characterized by inflammation and fibrosis, eventually predisposing to hepatocellular carcinoma (HCC). Together with fatty acids (FAs) originated from adipose lipolysis and hepatic lipogenesis, intestinal‐derived FAs are major contributors of steatosis. However, the role of mono‐unsaturated FAs (MUFAs) in NAFLD development is still debated. We previously established the intestinal capacity to produce MUFAs, but its consequences in hepatic functions are still unknown. Here, we aimed to determine the role of the intestinal MUFA‐synthetizing enzyme stearoyl‐CoA desaturase 1 (SCD1) in NAFLD. We used intestinal‐specific Scd1‐KO (iScd1−/−) mice and studied hepatic dysfunction in different models of steatosis, NASH, and HCC. Intestinal‐specific Scd1 deletion decreased hepatic MUFA proportion. Compared with controls, iScd1−/− mice displayed increased hepatic triglyceride accumulation and derangement in cholesterol homeostasis when fed a MUFA‐deprived diet. Then, on Western diet feeding, iScd1−/− mice triggered inflammation and fibrosis compared with their wild‐type littermates. Finally, intestinal‐Scd1 deletion predisposed mice to liver cancer. Conclusions: Collectively, these results highlight the major importance of intestinal MUFA metabolism in maintaining hepatic functions and show that gut‐derived MUFAs are protective from NASH and HCC.
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Affiliation(s)
- Simon Ducheix
- Department of Interdisciplinary Medicine, University of Bari "Aldo Moro", Bari, Italy
| | - Elena Piccinin
- Department of Basic Medical Science, Neurosciences, and Sense organs, University of Bari "Aldo Moro", Bari, Italy
| | - Claudia Peres
- INBB, National Institute for Biostructures and Biosystems, Rome, Italy
| | | | - Justine Bertrand-Michel
- MetaboHUB-MetaToul, National Infrastructure of Metabolomics and Fluxomics, Toulouse, France.,I2MC, Université de Toulouse, Inserm, Université Toulouse III-Paul Sabatier, Toulouse, France
| | - Allan Fouache
- INSERM U 1103, CNRS, UMR 6293, Université Clermont Auvergne, GReD, Aubière, France.,Centre de Recherche en Nutrition Humaine d'Auvergne, Clermont-Ferrand, France
| | - Marica Cariello
- Department of Interdisciplinary Medicine, University of Bari "Aldo Moro", Bari, Italy
| | - Jean-Marc Lobaccaro
- INSERM U 1103, CNRS, UMR 6293, Université Clermont Auvergne, GReD, Aubière, France.,Centre de Recherche en Nutrition Humaine d'Auvergne, Clermont-Ferrand, France
| | - Hervé Guillou
- Integrative Toxicology and Metabolism Team, Toxalim (Research Centre in Food Toxicology), Université de Toulouse, INRA, ENVT, INP-Purpan, UPS, Toulouse, France
| | - Carlo Sabbà
- Department of Interdisciplinary Medicine, University of Bari "Aldo Moro", Bari, Italy
| | - James M Ntambi
- Departments of Biochemistry and of Nutritional Sciences, University of Wisconsin Madison, Madison, Wisconsin, USA
| | - Antonio Moschetta
- Department of Interdisciplinary Medicine, University of Bari "Aldo Moro", Bari, Italy.,INBB, National Institute for Biostructures and Biosystems, Rome, Italy
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25
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Hong ZS, Xie J, Wang XF, Dai JJ, Mao JY, Bai YY, Sheng J, Tian Y. Moringa oleifera Lam. Peptide Remodels Intestinal Mucosal Barrier by Inhibiting JAK-STAT Activation and Modulating Gut Microbiota in Colitis. Front Immunol 2022; 13:924178. [PMID: 35911761 PMCID: PMC9336532 DOI: 10.3389/fimmu.2022.924178] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Accepted: 06/20/2022] [Indexed: 12/11/2022] Open
Abstract
Ulcerative colitis is a chronic inflammatory bowel disease (IBD), but progress in exploring its pathogenesis and finding effective drugs for its prevention and treatment has stalled in recent years. The seeds of Moringa oleifera Lam. are rich in proteins known to have multiple physiological activities. In our earlier work, we had isolated and purified a peptide (MOP) having the sequence KETTTIVR, from M. oleifera seeds; however, its anti-inflammatory activity and mechanism in vivo were unclear. Here we used the dextran sulfate sodium (DSS)-induced colitis model to study the anti-inflammatory activity and mechanism of this MOP. Our results are the first to show that MOP can ameliorate the pathological phenotype, inflammation, and intestinal barrier disruption in mice with colitis. Furthermore, RNA sequencing revealed that MOP inhibits the Janus kinase/signal transducer and activator of transcription (JAK-STAT) pathway activation. Next, by using 16s rRNA gene sequencing, we found that MOP can ameliorate DSS-induced gut microbiota dysbiosis. In addition, an untargeted metabolomics analysis suggested that MOP is able to modulate the level of lipid and amino acid metabolites in IBD-stricken mice. Altogether, these results indicate that MOP ameliorates colitis by remodeling intestinal mucosal barrier by inhibiting JAK-STAT pathway’s activation and regulating gut microbiota and its metabolites, thus providing a basis for further processing and design of bioactive foods from M. oleifera seeds.
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Affiliation(s)
- Zi-Shan Hong
- College of Food Science and Technology, Yunnan Agricultural University, Kunming, China
- National Research and Development Professional Center for Moringa Processing Technology, Yunnan Agricultural University, Kunming, China
| | - Jing Xie
- College of Food Science and Technology, Yunnan Agricultural University, Kunming, China
- National Research and Development Professional Center for Moringa Processing Technology, Yunnan Agricultural University, Kunming, China
- Engineering Research Center of Development and Utilization of Food and Drug Homologous Resources, Ministry of Education, Yunnan Agricultural University, Kunming, China
| | - Xue-Feng Wang
- College of Food Science and Technology, Yunnan Agricultural University, Kunming, China
- Yunnan Provincial Engineering Research Center for Edible and Medicinal Homologous Functional Food, Yunnan Agricultural University, Kunming, China
| | - Jing-Jing Dai
- College of Food Science and Technology, Yunnan Agricultural University, Kunming, China
- National Research and Development Professional Center for Moringa Processing Technology, Yunnan Agricultural University, Kunming, China
- Engineering Research Center of Development and Utilization of Food and Drug Homologous Resources, Ministry of Education, Yunnan Agricultural University, Kunming, China
| | - Jia-Ying Mao
- College of Food Science and Technology, Yunnan Agricultural University, Kunming, China
- National Research and Development Professional Center for Moringa Processing Technology, Yunnan Agricultural University, Kunming, China
- Yunnan Provincial Engineering Research Center for Edible and Medicinal Homologous Functional Food, Yunnan Agricultural University, Kunming, China
| | - Yu-Ying Bai
- College of Food Science and Technology, Yunnan Agricultural University, Kunming, China
- Engineering Research Center of Development and Utilization of Food and Drug Homologous Resources, Ministry of Education, Yunnan Agricultural University, Kunming, China
- Yunnan Provincial Engineering Research Center for Edible and Medicinal Homologous Functional Food, Yunnan Agricultural University, Kunming, China
| | - Jun Sheng
- College of Food Science and Technology, Yunnan Agricultural University, Kunming, China
- Key Laboratory of Pu-er Tea Science, Ministry of Education, Yunnan Agricultural University, Kunming, China
- *Correspondence: Jun Sheng, ; Yang Tian,
| | - Yang Tian
- College of Food Science and Technology, Yunnan Agricultural University, Kunming, China
- Engineering Research Center of Development and Utilization of Food and Drug Homologous Resources, Ministry of Education, Yunnan Agricultural University, Kunming, China
- *Correspondence: Jun Sheng, ; Yang Tian,
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26
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Acetyl-CoA-Carboxylase 1-mediated de novo fatty acid synthesis sustains Lgr5 + intestinal stem cell function. Nat Commun 2022; 13:3998. [PMID: 35810180 PMCID: PMC9271096 DOI: 10.1038/s41467-022-31725-2] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Accepted: 06/13/2022] [Indexed: 01/07/2023] Open
Abstract
Basic processes of the fatty acid metabolism have an important impact on the function of intestinal epithelial cells (IEC). However, while the role of cellular fatty acid oxidation is well appreciated, it is not clear how de novo fatty acid synthesis (FAS) influences the biology of IECs. We report here that interfering with de novo FAS by deletion of the enzyme Acetyl-CoA-Carboxylase (ACC)1 in IECs results in the loss of epithelial crypt structures and a specific decline in Lgr5+ intestinal epithelial stem cells (ISC). Mechanistically, ACC1-mediated de novo FAS supports the formation of intestinal organoids and the differentiation of complex crypt structures by sustaining the nuclear accumulation of PPARδ/β-catenin in ISCs. The dependency of ISCs on cellular de novo FAS is tuned by the availability of environmental lipids, as an excess delivery of external fatty acids is sufficient to rescue the defect in crypt formation. Finally, inhibition of ACC1 reduces the formation of tumors in colitis-associated colon cancer, together highlighting the importance of cellular lipogenesis for sustaining ISC function and providing a potential perspective to colon cancer therapy. Here the authors report that inhibition of de novo fatty acid synthesis by deleting the enzyme Acetyl-CoA-Carboxylase 1 in the intestinal epithelium results in the loss of crypt structures and a specific decline in Lgr5+ intestinal epithelial stem cells.
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27
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Mekhail K, Lee M, Sugiyama M, Astori A, St-Germain J, Latreille E, Khosraviani N, Wei K, Li Z, Rini J, Lee WL, Antonescu C, Raught B, Fairn GD. Fatty Acid Synthase inhibitor TVB-3166 prevents S-acylation of the Spike protein of human coronaviruses. J Lipid Res 2022; 63:100256. [PMID: 35921881 PMCID: PMC9339154 DOI: 10.1016/j.jlr.2022.100256] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2022] [Revised: 07/08/2022] [Accepted: 07/09/2022] [Indexed: 11/24/2022] Open
Abstract
The spike protein of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) and other coronaviruses mediates host cell entry and is S-acylated on multiple phylogenetically conserved cysteine residues. Multiple protein acyltransferase enzymes have been reported to post-translationally modify spike proteins; however, strategies to exploit this modification are lacking. Using resin-assisted capture MS, we demonstrate that the spike protein is S-acylated in SARS-CoV-2-infected human and monkey epithelial cells. We further show that increased abundance of the acyltransferase ZDHHC5 associates with increased S-acylation of the spike protein, whereas ZDHHC5 knockout cells had a 40% reduction in the incorporation of an alkynyl-palmitate using click chemistry detection. We also found that the S-acylation of the spike protein is not limited to palmitate, as clickable versions of myristate and stearate were also labelled the protein. Yet, we observed that ZDHHC5 was only modified when incubated with alkyne-palmitate, suggesting it has specificity for this acyl-CoA, and that other ZDHHC enzymes may use additional fatty acids to modify the spike protein. Since multiple ZDHHC isoforms may modify the spike protein, we also examined the ability of the FASN inhibitor TVB-3166 to prevent S-acylation of the spike proteins of SARS-CoV-2 and human CoV-229E. We show that treating cells with TVB-3166 inhibited S-acylation of expressed spike proteins and attenuated the ability of SARS-CoV-2 and human CoV-229E to spread in vitro. Our findings further substantiate the necessity of CoV spike protein S-acylation and demonstrate that de novo fatty acid synthesis is critical for the proper S-acylation of the spike protein.
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Affiliation(s)
- Katrina Mekhail
- Department of Biochemistry, University of Toronto, Toronto, Ontario, Canada; Keenan Research Centre, St. Michael's Hospital, Unity Health Toronto, Toronto, Ontario, Canada
| | - Minhyoung Lee
- Department of Biochemistry, University of Toronto, Toronto, Ontario, Canada; Keenan Research Centre, St. Michael's Hospital, Unity Health Toronto, Toronto, Ontario, Canada
| | - Michael Sugiyama
- Department of Chemistry and Biology, Ryerson University, Toronto, Ontario, Canada
| | - Audrey Astori
- Princess Margaret Cancer Centre, University Health Network, Ontario, Canada
| | | | - Elyse Latreille
- Keenan Research Centre, St. Michael's Hospital, Unity Health Toronto, Toronto, Ontario, Canada; Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Ontario, Canada
| | - Negar Khosraviani
- Keenan Research Centre, St. Michael's Hospital, Unity Health Toronto, Toronto, Ontario, Canada
| | - Kuiru Wei
- Keenan Research Centre, St. Michael's Hospital, Unity Health Toronto, Toronto, Ontario, Canada
| | - Zhijie Li
- Department of Biochemistry, University of Toronto, Toronto, Ontario, Canada
| | - James Rini
- Department of Biochemistry, University of Toronto, Toronto, Ontario, Canada; Department of Molecular Genetics, University of Toronto, Ontario, Canada
| | - Warren L Lee
- Department of Biochemistry, University of Toronto, Toronto, Ontario, Canada; Keenan Research Centre, St. Michael's Hospital, Unity Health Toronto, Toronto, Ontario, Canada; Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Ontario, Canada; Department of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Costin Antonescu
- Department of Chemistry and Biology, Ryerson University, Toronto, Ontario, Canada
| | - Brian Raught
- Princess Margaret Cancer Centre, University Health Network, Ontario, Canada; Department of Medical Biophysics, University of Toronto, Ontario, Canada
| | - Gregory D Fairn
- Department of Biochemistry, University of Toronto, Toronto, Ontario, Canada; Keenan Research Centre, St. Michael's Hospital, Unity Health Toronto, Toronto, Ontario, Canada; Department of Surgery, University of Toronto, Toronto, Ontario, Canada; Department of Pathology, Dalhousie University, Halifax, Nova Scotia, Canada.
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28
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Tissue-Specific Downregulation of Fatty Acid Synthase Suppresses Intestinal Adenoma Formation via Coordinated Reprograming of Transcriptome and Metabolism in the Mouse Model of Apc-Driven Colorectal Cancer. Int J Mol Sci 2022; 23:ijms23126510. [PMID: 35742953 PMCID: PMC9245602 DOI: 10.3390/ijms23126510] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2022] [Revised: 06/06/2022] [Accepted: 06/08/2022] [Indexed: 12/04/2022] Open
Abstract
Altered lipid metabolism is a potential target for therapeutic intervention in cancer. Overexpression of Fatty Acid Synthase (FASN) correlates with poor prognosis in colorectal cancer (CRC). While multiple studies show that upregulation of lipogenesis is critically important for CRC progression, the contribution of FASN to CRC initiation is poorly understood. We utilize a C57BL/6-Apc/Villin-Cre mouse model with knockout of FASN in intestinal epithelial cells to show that the heterozygous deletion of FASN increases mouse survival and decreases the number of intestinal adenomas. Using RNA-Seq and gene set enrichment analysis, we demonstrate that a decrease in FASN expression is associated with inhibition of pathways involved in cellular proliferation, energy production, and CRC progression. Metabolic and reverse phase protein array analyses demonstrate consistent changes in alteration of metabolic pathways involved in both anabolism and energy production. Downregulation of FASN expression reduces the levels of metabolites within glycolysis and tricarboxylic acid cycle with the most significant reduction in the level of citrate, a master metabolite, which enhances ATP production and fuels anabolic pathways. In summary, we demonstrate the critical importance of FASN during CRC initiation. These findings suggest that targeting FASN is a potential therapeutic approach for early stages of CRC or as a preventive strategy for this disease.
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29
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Abstract
In mammals, fatty acids are supplied by diet or synthesized de novo by fatty acid synthase (FASN). Beyond its key role in energy storage, FASN is involved in many biological processes. It actively participates in the synthesis of membrane components necessary for cell division, protein modification, cell signaling and cell proliferation. In this review, we discuss the various physiological functions of FASN as well as its involvement in cancer, the expression of the lipogenic enzyme being particularly high in this disease.
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Affiliation(s)
- Sadia Raab
- Université de Lille, CNRS, UMR 8576 - UGSF - Unité de glycobiologie structurale et fonctionnelle, F-59000, Lille, France
| | - Tony Lefebvre
- Université de Lille, CNRS, UMR 8576 - UGSF - Unité de glycobiologie structurale et fonctionnelle, F-59000, Lille, France
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30
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Li C, Cheng X, Cao W, Wang Y, Xue C, Tang Q. Enzymatic hydrolysate of porphyra enhances the intestinal mucosal functions in obese mice. J Food Biochem 2022; 46:e14175. [PMID: 35510340 DOI: 10.1111/jfbc.14175] [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: 01/06/2022] [Revised: 03/13/2022] [Accepted: 03/28/2022] [Indexed: 11/30/2022]
Abstract
Intestinal mucosal immunity is important to human body; however, obesity induced by high-fat diet may bring a series of problems, such as chronic inflammation which may damage intestinal mucosal immunity. In this study, the effects of two different enzymatic hydrolysates of porphyra on the function of intestinal mucosal were explored in obese mice. The results showed that 10 consecutive weeks of high-fat dietary intake resulted in weight gain and intestinal abnormalities in C57BL/6 mice. However, the administration of enzymatic hydrolysate of porphyra effectively protected the intestinal mucosa from these injuries while reducing levels of oxidative stress (MDA, GSH, and GSH-Px). Specifically, they were found to improve small intestine morphological structure, increase growth of goblet cells and mucous, raise expression levels of lysozyme, and stimulate SIgA secretion, especially in the group administered with the enzymatic hydrolysate containing protease and polysaccharide enzyme (EHPP). The results showed that the enzymatic hydrolysates of porphyra may provide a protective measure to maintain intestinal mucosal barriers, which is beneficial to overall health. Porphyra is widely distributed all over the world. Moreover, an increasing number of studies have described its diverse biological functions. Therefore, it is necessary to find a way to develop products related to porphyra. In this study, a new type of polysaccharide enzyme of porphyra found in our previous research was used to make a clear porphyra energy drink with a lower molecular weight polysaccharide. Our findings highlighted the repaired intestinal barriers in obese bodies after the treatment with the enzymatic hydrolysate. PRACTICAL APPLICATIONS: Porphyra is widely distributed all over the world. Moreover, an increasing number of studies have described its diverse biological functions. Therefore, it is necessary to find a way to develop products related to porphyra. In this study, a new type of polysaccharide enzyme of porphyra found in our previous research was used to make a clear porphyra energy drink with a lower molecular weight polysaccharide. Our findings highlighted the repaired intestinal barriers in obese bodies after the treatment with the enzymatic hydrolysate.
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Affiliation(s)
- Chunjun Li
- College of Food Science and Engineering, Ocean University of China, Qingdao, P. R. China
| | - Xiaojie Cheng
- College of Food Science and Engineering, Ocean University of China, Qingdao, P. R. China
| | - Wanxiu Cao
- College of Food Science and Engineering, Ocean University of China, Qingdao, P. R. China
| | - Yuming Wang
- College of Food Science and Engineering, Ocean University of China, Qingdao, P. R. China.,Laboratory for Marine Drugs and Bioproducts, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao, P. R. China
| | - Changhu Xue
- College of Food Science and Engineering, Ocean University of China, Qingdao, P. R. China.,Laboratory for Marine Drugs and Bioproducts, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao, P. R. China
| | - Qingjuan Tang
- College of Food Science and Engineering, Ocean University of China, Qingdao, P. R. China
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31
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Xiao Y, Li K, Bian J, Liu H, Zhai X, El‐Omar E, Han L, Gong L, Wang M. Urolithin A attenuates diabetes‐associated cognitive impairment by ameliorating intestinal barrier dysfunction via N‐glycan biosynthesis pathway. Mol Nutr Food Res 2022; 66:e2100863. [DOI: 10.1002/mnfr.202100863] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2021] [Revised: 01/24/2022] [Indexed: 11/05/2022]
Affiliation(s)
- Yao Xiao
- College of Food Science and Engineering Northwest A & F University Yangling Shaanxi 712100 China
| | - Kailin Li
- College of Food Science and Engineering Northwest A & F University Yangling Shaanxi 712100 China
| | - Ji Bian
- Kolling Institute Sydney Medical School Royal North Shore Hospital University of Sydney St. Leonards NSW 2065 Australia
| | - Hang Liu
- School of Life Sciences and Biotechnology Shanghai Jiao Tong University Shanghai Center for Systems Biomedicine Shanghai 200240 China
| | - Xiaotong Zhai
- College of Food Science and Engineering Northwest A & F University Yangling Shaanxi 712100 China
- Academy of National Food and Strategic Reserves Administration No.11 Baiwanzhuang Street Beijing 100037 China
| | - Emad El‐Omar
- Microbiome Research Centre St George and Sutherland Clinical School University of New South Wales Sydney Australia
| | - Lin Han
- College of Food Science and Engineering Northwest A & F University Yangling Shaanxi 712100 China
| | - Lan Gong
- Microbiome Research Centre St George and Sutherland Clinical School University of New South Wales Sydney Australia
| | - Min Wang
- College of Food Science and Engineering Northwest A & F University Yangling Shaanxi 712100 China
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32
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FASN-dependent de novo lipogenesis is required for brain development. Proc Natl Acad Sci U S A 2022; 119:2112040119. [PMID: 34996870 PMCID: PMC8764667 DOI: 10.1073/pnas.2112040119] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/23/2021] [Indexed: 01/24/2023] Open
Abstract
Fate and behavior of neural progenitor cells are tightly regulated during mammalian brain development. Metabolic pathways, such as glycolysis and oxidative phosphorylation, that are required for supplying energy and providing molecular building blocks to generate cells govern progenitor function. However, the role of de novo lipogenesis, which is the conversion of glucose into fatty acids through the multienzyme protein fatty acid synthase (FASN), for brain development remains unknown. Using Emx1Cre-mediated, tissue-specific deletion of Fasn in the mouse embryonic telencephalon, we show that loss of FASN causes severe microcephaly, largely due to altered polarity of apical, radial glia progenitors and reduced progenitor proliferation. Furthermore, genetic deletion and pharmacological inhibition of FASN in human embryonic stem cell-derived forebrain organoids identifies a conserved role of FASN-dependent lipogenesis for radial glia cell polarity in human brain organoids. Thus, our data establish a role of de novo lipogenesis for mouse and human brain development and identify a link between progenitor-cell polarity and lipid metabolism.
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33
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Gueddouri D, Caüzac M, Fauveau V, Benhamed F, Charifi W, Beaudoin L, Rouland M, Sicherre F, Lehuen A, Postic C, Boudry G, Burnol AF, Guilmeau S. Insulin resistance per se drives early and reversible dysbiosis-mediated gut barrier impairment and bactericidal dysfunction. Mol Metab 2022; 57:101438. [PMID: 35007789 PMCID: PMC8814824 DOI: 10.1016/j.molmet.2022.101438] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/30/2021] [Revised: 12/24/2021] [Accepted: 01/05/2022] [Indexed: 11/30/2022] Open
Abstract
Objective A common feature of metabolic diseases is their association with chronic low-grade inflammation. While enhanced gut permeability and systemic bacterial endotoxin translocation have been suggested as key players of this metaflammation, the mechanistic bases underlying these features upon the diabesity cascade remain partly understood. Methods Here, we show in mice that, independently of obesity, the induction of acute and global insulin resistance and associated hyperglycemia, upon treatment with an insulin receptor (IR) antagonist (S961), elicits gut hyperpermeability without triggering systemic inflammatory response. Results Of note, S961-treated diabetic mice display major defects of gut barrier epithelial functions, such as increased epithelial paracellular permeability and impaired cell-cell junction integrity. We also observed in these mice the early onset of a severe gut dysbiosis, as characterized by the bloom of pro-inflammatory Proteobacteria, and the later collapse of Paneth cells antimicrobial defense. Interestingly, S961 treatment discontinuation is sufficient to promptly restore both the gut microbial balance and the intestinal barrier integrity. Moreover, fecal transplant approaches further confirm that S961-mediated dybiosis contributes at least partly to the disruption of the gut selective epithelial permeability upon diabetic states. Conclusions Together, our results highlight that insulin signaling is an indispensable gatekeeper of intestinal barrier integrity, acting as a safeguard against microbial imbalance and acute infections by enteropathogens. S961-mediated insulin resistance elicits reversible gut leakiness in lean mice. Diabetic leaky gut is associated with reduced Paneth cells antimicrobial defenses. S961 treatment triggers early onset of pro-inflammatory gut microbial imbalance. S961-associated dysbiosis contributes to intestinal barrier integrity impairment.
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Affiliation(s)
- Dalale Gueddouri
- Université de Paris, Institut Cochin, CNRS, INSERM, F75014, Paris, France
| | - Michèle Caüzac
- Université de Paris, Institut Cochin, CNRS, INSERM, F75014, Paris, France
| | - Véronique Fauveau
- Université de Paris, Institut Cochin, CNRS, INSERM, F75014, Paris, France
| | - Fadila Benhamed
- Université de Paris, Institut Cochin, CNRS, INSERM, F75014, Paris, France
| | - Wafa Charifi
- Université de Paris, Institut Cochin, CNRS, INSERM, F75014, Paris, France
| | - Lucie Beaudoin
- Université de Paris, Institut Cochin, CNRS, INSERM, F75014, Paris, France
| | - Matthieu Rouland
- Université de Paris, Institut Cochin, CNRS, INSERM, F75014, Paris, France
| | - Florian Sicherre
- Université de Paris, Institut Cochin, CNRS, INSERM, F75014, Paris, France
| | - Agnès Lehuen
- Université de Paris, Institut Cochin, CNRS, INSERM, F75014, Paris, France
| | - Catherine Postic
- Université de Paris, Institut Cochin, CNRS, INSERM, F75014, Paris, France
| | - Gaëlle Boudry
- Institut NuMeCan, INRAE, INSERM, Univ Rennes, F35000, Rennes, France
| | | | - Sandra Guilmeau
- Université de Paris, Institut Cochin, CNRS, INSERM, F75014, Paris, France.
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34
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Mucins Dynamics in Physiological and Pathological Conditions. Int J Mol Sci 2021; 22:ijms222413642. [PMID: 34948435 PMCID: PMC8707880 DOI: 10.3390/ijms222413642] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2021] [Revised: 12/10/2021] [Accepted: 12/16/2021] [Indexed: 12/14/2022] Open
Abstract
Maintaining intestinal health requires clear segregation between epithelial cells and luminal microbes. The intestinal mucus layer, produced by goblet cells (GCs), is a key element in maintaining the functional protection of the epithelium. The importance of the gut mucus barrier is highlighted in mice lacking Muc2, the major form of secreted mucins. These mice show closer bacterial residence to epithelial cells, develop spontaneous colitis and became moribund when infected with the attaching and effacing pathogen, Citrobacter rodentium. Furthermore, numerous observations have associated GCs and mucus layer dysfunction to the pathogenesis of inflammatory bowel disease (IBD). However, the molecular mechanisms that regulate the physiology of GCs and the mucus layer remain obscured. In this review, we consider novel findings describing divergent functionality and expression profiles of GCs subtypes within intestinal crypts. We also discuss internal (host) and external (diets and bacteria) factors that modulate different aspects of the mucus layer as well as the contribution of an altered mucus barrier to the onset of IBD.
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35
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Zhao Y, Fu J, Li P, Chen N, Liu Y, Liu D, Guo Y. Effects of dietary glucose oxidase on growth performance and intestinal health of AA broilers challenged by Clostridium perfringens. Poult Sci 2021; 101:101553. [PMID: 34852314 PMCID: PMC8639461 DOI: 10.1016/j.psj.2021.101553] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2021] [Revised: 08/07/2021] [Accepted: 10/07/2021] [Indexed: 12/14/2022] Open
Abstract
Arbor Acre (AA) broilers were used as the research object to investigate whether glucose oxidase (GOD) has preventive and relieving effects on necrotic enteritis. The experiment was designed as a factorial arrangement of 2 dietary treatments × 2 infection states. Chickens were fed a basal diet or a diet with 150 U/kg GOD, and were challenged with Clostridium perfringens (Cp) or sterile culture medium. In our study, Cp challenge led to intestinal injury, as evidenced by reducing the average daily gain and the average daily feed intake of AA broilers of 14 to 21 d (P < 0.05), increasing the intestinal jejunal lesion score (P < 0.05), reducing the jejunal villi height and villi height/crypt depth (P < 0.05), upregulating the mRNA expression levels jejunal IFN-γ (P < 0.05). The dietary GOD had no significant effects on the growth performance of each growth period, but significantly decreased the ileal pH, increased the height of villi and the ratio of villi height to crypt depth (P < 0.05) and the expression levels of Occludin and Zonula occludens-1 (ZO-1) at d 21. Moreover, dietary GOD and the Cp challenge significantly altered the composition of 21-d ileal microbiota. The Cp challenge decreased the relative abundance of genus Lactobacillus (P = 0.057), and increased the relative abundance of genus Romboutsia (P < 0.05) and genus Veillonella (P = 0.088). The dietary GOD tended to increase the relative abundance of genus Helicobacter (P = 0.066) and decrease the relative abundance of genus Streptococcus (P = 0.071). This study has shown that the supplementation of GOD could promote the integrity of intestinal barrier and the balance of ileal microbiota, but the effects of GOD on NE broilers and its application in actual production need to be further confirmed.
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Affiliation(s)
- Yizhu Zhao
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Jiahuan Fu
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Peng Li
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Ningbo Chen
- Jinan Bestzyme Bio-Engineering Co., LTD., Jinan, China
| | - Yanjie Liu
- Jinan Bestzyme Bio-Engineering Co., LTD., Jinan, China
| | - Dan Liu
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, China.
| | - Yuming Guo
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, China
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36
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Qu M, Zhou X, Wang X, Li H. Lipid-induced S-palmitoylation as a Vital Regulator of Cell Signaling and Disease Development. Int J Biol Sci 2021; 17:4223-4237. [PMID: 34803494 PMCID: PMC8579454 DOI: 10.7150/ijbs.64046] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2021] [Accepted: 09/20/2021] [Indexed: 12/29/2022] Open
Abstract
Lipid metabolites are emerging as pivotal regulators of protein function and cell signaling. The availability of intracellular fatty acid is tightly regulated by glycolipid metabolism and may affect human body through many biological mechanisms. Recent studies have demonstrated palmitate, either from exogenous fatty acid uptake or de novo fatty acid synthesis, may serve as the substrate for protein palmitoylation and regulate protein function via palmitoylation. Palmitoylation, the most-studied protein lipidation, encompasses the reversible covalent attachment of palmitate moieties to protein cysteine residues. It controls various cellular physiological processes and alters protein stability, conformation, localization, membrane association and interaction with other effectors. Dysregulation of palmitoylation has been implicated in a plethora of diseases, such as metabolic syndrome, cancers, neurological disorders and infections. Accordingly, it could be one of the molecular mechanisms underlying the impact of palmitate metabolite on cellular homeostasis and human diseases. Herein, we explore the relationship between lipid metabolites and the regulation of protein function through palmitoylation. We review the current progress made on the putative role of palmitate in altering the palmitoylation of key proteins and thus contributing to the pathogenesis of various diseases, among which we focus on metabolic disorders, cancers, inflammation and infections, neurodegenerative diseases. We also highlight the opportunities and new therapeutics to target palmitoylation in disease development.
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Affiliation(s)
- Mengyuan Qu
- Institute of Reproductive Health/Center of Reproductive Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xuan Zhou
- National Clinical Research Center for Infectious Disease; Department of liver Diseases, Shenzhen Third People's Hospital, Shenzhen, China
| | - Xiaotong Wang
- Institute of Reproductive Health/Center of Reproductive Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Honggang Li
- Institute of Reproductive Health/Center of Reproductive Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Wuhan Tongji Reproductive Medicine Hospital, Wuhan, China
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37
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Miranda-Bautista J, Rodríguez-Feo JA, Puerto M, López-Cauce B, Lara JM, González-Novo R, Martín-Hernández D, Ferreiro-Iglesias R, Bañares R, Menchén L. Liver X Receptor Exerts Anti-Inflammatory Effects in Colonic Epithelial Cells via ABCA1 and Its Expression Is Decreased in Human and Experimental Inflammatory Bowel Disease. Inflamm Bowel Dis 2021; 27:1661-1673. [PMID: 33609028 DOI: 10.1093/ibd/izab034] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/19/2020] [Indexed: 12/13/2022]
Abstract
BACKGROUND Liver X receptor (LXR) exerts anti-inflammatory effects in macrophages. The aim of this study was to explore the expression and function of LXR in the colonic epithelium under inflammatory conditions. METHODS The expression of LXR was explored by Western blot and immunohistochemistry in colonic biopsies from patients diagnosed with inflammatory bowel disease (IBD) and control patients. In addition, LXR and its target gene expression were analyzed in the colon from interleukin (IL)-10-deficient (IL-10-/-) and wild-type mice. Caco-2 cells were pretreated with the synthetic LXR agonist GW3965 and further challenged with IL-1β, the expression of IL-8 and chemokine (C-C motif) ligand (CCL)-28 chemokines, the activation of mitogen-activated protein (MAP) kinases, and the nuclear translocation of the p65 subunit of nuclear factor kappa B was evaluated. Glibenclamide was used as an ABCA1 antagonist. RESULTS We found that LXR expression was downregulated in colonic samples from patients with IBD and IL-10-/- mice. The nuclear positivity of LXR inversely correlated with ulcerative colitis histologic activity. Colonic IL-1β mRNA levels negatively correlated with both LXRα and LXRβ in the colon of IL-10-/- mice, where a decreased mRNA expression of the LXR target genes ABCA1 and FAS was shown. In addition, IL-1β decreased the expression of the LXR target gene ABCA1 in cultured intestinal epithelial cells. The synthetic LXR agonist GW3965 led to a decreased nuclear positivity of the p65 subunit of nuclear factor kappa B, a phosphorylation ratio of the p44-42 MAP kinase, and the expression of CCL-28 and IL-8 in IL-1β-stimulated Caco-2 cells. The pharmacological inhibition of ABCA1 increased the phosphorylation of p44-42 after GW3965 treatment and IL-1β stimulation. CONCLUSIONS The LXR-ABCA1 pathway exerts anti-inflammatory effects in intestinal epithelial cells and is impaired in the colonic mucosa of patients with IBD and IL-10-/- mice.
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Affiliation(s)
- José Miranda-Bautista
- Servicio de Aparato Digestivo, Hospital General Universitario Gregorio Marañón-Instituto de Investigación Sanitaria Gregorio Marañón, Madrid, Spain
| | - Juan A Rodríguez-Feo
- Servicio de Aparato Digestivo, Hospital General Universitario Gregorio Marañón-Instituto de Investigación Sanitaria Gregorio Marañón, Madrid, Spain
| | - Marta Puerto
- Servicio de Aparato Digestivo, Hospital General Universitario Gregorio Marañón-Instituto de Investigación Sanitaria Gregorio Marañón, Madrid, Spain.,Centro de Investigación en Red de Enfermedades Hepáticas y Digestivas, Madrid, Spain
| | - Beatriz López-Cauce
- Servicio de Aparato Digestivo, Hospital General Universitario Gregorio Marañón-Instituto de Investigación Sanitaria Gregorio Marañón, Madrid, Spain
| | - José M Lara
- Servicio de Anatomía Patológica, Hospital General Universitario Gregorio Marañón-Instituto de Investigación Sanitaria Gregorio Marañón, Madrid, Spain
| | - Raquel González-Novo
- Servicio de Aparato Digestivo, Hospital General Universitario Gregorio Marañón-Instituto de Investigación Sanitaria Gregorio Marañón, Madrid, Spain
| | - David Martín-Hernández
- Servicio de Psiquiatría del Niño y del Adolescente, Hospital General Universitario Gregorio Marañón-Instituto de Investigación Sanitaria Gregorio Marañón, Madrid, Spain.,Centro de Investigación Biomédica en Red de Salud Mental, Instituto de Salud Carlos III, Madrid, Spain
| | | | - Rafael Bañares
- Servicio de Aparato Digestivo, Hospital General Universitario Gregorio Marañón-Instituto de Investigación Sanitaria Gregorio Marañón, Madrid, Spain.,Centro de Investigación en Red de Enfermedades Hepáticas y Digestivas, Madrid, Spain.,Departamento de Medicina, Universidad Complutense de Madrid, Madrid, Spain
| | - Luis Menchén
- Servicio de Aparato Digestivo, Hospital General Universitario Gregorio Marañón-Instituto de Investigación Sanitaria Gregorio Marañón, Madrid, Spain.,Centro de Investigación en Red de Enfermedades Hepáticas y Digestivas, Madrid, Spain.,Departamento de Medicina, Universidad Complutense de Madrid, Madrid, Spain
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Xiong W, Sun KY, Zhu Y, Zhang X, Zhou YH, Zou X. Metformin alleviates inflammation through suppressing FASN-dependent palmitoylation of Akt. Cell Death Dis 2021; 12:934. [PMID: 34642298 PMCID: PMC8511025 DOI: 10.1038/s41419-021-04235-0] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Revised: 09/17/2021] [Accepted: 09/27/2021] [Indexed: 12/18/2022]
Abstract
Metformin, traditionally regarded as a hypoglycemic drug, has been studied in other various fields including inflammation. The specific mechanism of metformin’s effect on immune cells remains unclear. Herein, it is verified that LPS-induced macrophages are characterized by enhanced endogenous fatty acid synthesis and the inhibition of fatty acid synthase (FASN) downregulates proinflammatory responses. We further show that metformin could suppress such elevation of FASN as well as proinflammatory activation in macrophages. In vivo, metformin treatment ameliorates dextran sulfate sodium (DSS)-induced colitis through impairing proinflammatory activation of colonic lamina propria mononuclear cells (LPMCs). The reduction of FASN by metformin hinders Akt palmitoylation, which further disturbs Akt membrane attachment and its phosphorylation. Metformin-mediated suppression of FASN/Akt pathway and its downstream MAPK signaling contributes to its anti-inflammatory role in macrophages. From the perspective of immunometabolism, our work points towards metformin utilization as an effective and potential intervention against macrophages-involved inflammatory diseases.
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Affiliation(s)
- Wenfang Xiong
- Department of Gastroenterology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, 321 Zhongshan Road, Nanjing, 210008, Jiangsu, PR China
| | - Kuo-Yang Sun
- State Key Laboratory of Pharmaceutical Biotechnology, Department of Sports Medicine and Adult Reconstructive Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, 321 Zhongshan Road, Nanjing, 210008, Jiangsu, PR China
| | - Yan Zhu
- Department of Gastroenterology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, 321 Zhongshan Road, Nanjing, 210008, Jiangsu, PR China
| | - Xiaoqi Zhang
- Department of Gastroenterology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, 321 Zhongshan Road, Nanjing, 210008, Jiangsu, PR China.
| | - Yi-Hua Zhou
- Departments of Laboratory Medicine and Infectious Diseases, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, 321 Zhongshan Road, Nanjing, 210008, Jiangsu, PR China.
| | - Xiaoping Zou
- Department of Gastroenterology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, 321 Zhongshan Road, Nanjing, 210008, Jiangsu, PR China.
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39
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Chaima D, Pickering H, Hart JD, Burr SE, Maleta KM, Kalua K, Bailey RL, Holland MJ. Fecal biomarkers of environmental enteric dysfunction and the gut microbiota of rural Malawian children: An observational study. Heliyon 2021; 7:e08194. [PMID: 34746468 PMCID: PMC8554169 DOI: 10.1016/j.heliyon.2021.e08194] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Revised: 08/12/2021] [Accepted: 10/13/2021] [Indexed: 12/14/2022] Open
Abstract
Environmental enteric dysfunction (EED) is a subclinical condition of the gut characterized by changes in morphology and function with underlying chronic inflammatory responses. This study characterized composition and diversity of the gut microbiota in rural Malawian children with and without signs of EED. Fecal samples were collected from children aged 1-59 months. Neopterin, myeloperoxidase and alpha-1 antitrypsin concentrations were quantified by ELISA and combined to form a composite EED score using principal component analysis. DNA was extracted from fecal samples and V4-16S rRNA gene sequencing was used to characterize the gut microbiota. The concentrations of all three biomarkers decreased with increasing age, which is consistent with other studies of children living in similar low-income settings. Firmicutes, Bacteroidetes, Proteobacteria and Actinobacteria were the dominant phyla while Faecalibacterium and Bifidobacterium were the most prevalent genera. Increased alpha diversity was associated with a reduction in neopterin concentration. Microbiota composition was different between fecal samples with low and high composite EED scores; increased abundance of Succinivibrio was associated with reduced composite EED scores.
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Affiliation(s)
- David Chaima
- Clinical Research Department, Faculty of Infectious and Tropical Diseases, London School of Hygiene and Tropical Medicine, London, United Kingdom
- Department of Pathology, Microbiology Unit, College of Medicine, University of Malawi, Blantyre, Malawi
| | - Harry Pickering
- Clinical Research Department, Faculty of Infectious and Tropical Diseases, London School of Hygiene and Tropical Medicine, London, United Kingdom
| | - John D. Hart
- Clinical Research Department, Faculty of Infectious and Tropical Diseases, London School of Hygiene and Tropical Medicine, London, United Kingdom
| | - Sarah E. Burr
- Clinical Research Department, Faculty of Infectious and Tropical Diseases, London School of Hygiene and Tropical Medicine, London, United Kingdom
- Department of Pathology, Microbiology Unit, College of Medicine, University of Malawi, Blantyre, Malawi
| | - Kenneth M. Maleta
- School of Public Health and Family Medicine, College of Medicine, University of Malawi, Blantyre, Malawi
| | - Khumbo Kalua
- Blantyre Institute of Community Outreach, Blantyre, Malawi
- Department of Ophthalmology, College of Medicine, University of Malawi, Blantyre, Malawi
| | - Robin L. Bailey
- Clinical Research Department, Faculty of Infectious and Tropical Diseases, London School of Hygiene and Tropical Medicine, London, United Kingdom
| | - Martin J. Holland
- Clinical Research Department, Faculty of Infectious and Tropical Diseases, London School of Hygiene and Tropical Medicine, London, United Kingdom
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Cao Y, Fan L, Li L, Zhou J. Propofol suppresses cell proliferation in gastric cancer cells through NRF2-mediated polyol pathway. Clin Exp Pharmacol Physiol 2021; 49:264-274. [PMID: 34570396 PMCID: PMC9299175 DOI: 10.1111/1440-1681.13595] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2021] [Revised: 09/15/2021] [Accepted: 09/21/2021] [Indexed: 12/28/2022]
Abstract
Propofol, a widely used short‐acting intravenous sedative agent, has gradually gained attention due to the tumour‐suppressing role and non‐anaesthetic effect. Dysfunction of metabolic reprogramming has been recognised as a well‐documented factor for tumour progression. The aim of this study is to explore the effect of propofol on the polyol pathway in gastric cancer cells. In this study, we found that propofol treatment led to a significant downregulation of cell proliferation in BGC823 and GES‐1 cells, which was attributed to the decreased AR‐mediated polyol pathway. Both aldo‐keto reductase family 1, member B1 (AKR1B1) and AKR1B10 were significantly reduced in BGC823 and GES‐1 cells in response to propofol stimulation, leading to decreased AR activity and sorbitol level. Addition of sorbitol could reverse the inhibitory effect of propofol on cell proliferation. Mechanically, propofol treatment drastically inhibited phosphorylation and nuclear translocation of nuclear factor (erythroid‐derived 2)‐like 2 (NRF2), subsequently decreased the binding of NRF2 to AR promoter. Overexpression of NRF2 resulted in the recovery of AR expression in gastric cancer cell with propofol treatment. Taken together, these finding showed that propofol suppressed cell proliferation in BGC823 and GES‐1 cell through NRF2‐mediated polyol pathway, which would aid the selection of sedation for patients with gastric cancer.
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Affiliation(s)
- Yajun Cao
- Department of Anesthesia, Zhuhai Center for Maternal and Child Health Care, Zhuhai, China
| | - Long Fan
- Department of Pharmacy, Zhuhai Center for Maternal and Child Health Care, Zhuhai, China
| | - Linkai Li
- Department of Pharmacy, Zhuhai Center for Maternal and Child Health Care, Zhuhai, China
| | - Jiexian Zhou
- Department of Anesthesia, Zhuhai Center for Maternal and Child Health Care, Zhuhai, China
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Sena LA, Denmeade SR. Fatty Acid Synthesis in Prostate Cancer: Vulnerability or Epiphenomenon? Cancer Res 2021; 81:4385-4393. [PMID: 34145040 PMCID: PMC8416800 DOI: 10.1158/0008-5472.can-21-1392] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2021] [Revised: 05/28/2021] [Accepted: 06/15/2021] [Indexed: 01/07/2023]
Abstract
Tumor metabolism supports the energetic and biosynthetic needs of rapidly proliferating cancer cells and modifies intra- and intercellular signaling to enhance cancer cell invasion, metastasis, and immune evasion. Prostate cancer exhibits unique metabolism with high rates of de novo fatty acid synthesis driven by activation of the androgen receptor (AR). Increasing evidence suggests that activation of this pathway is functionally important to promote prostate cancer aggressiveness. However, the mechanisms by which fatty acid synthesis are beneficial to prostate cancer have not been well defined. In this review, we summarize evidence indicating that fatty acid synthesis drives progression of prostate cancer. We also explore explanations for this phenomenon and discuss future directions for targeting this pathway for patient benefit.
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Affiliation(s)
- Laura A. Sena
- Department of Oncology, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, Maryland.,Corresponding Author: Laura A. Sena, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, 1650 Orleans Street, Cancer Research Building 1, Room 162-A, Baltimore, MD 21287. Phone: 410-502-3825; E-mail:
| | - Samuel R. Denmeade
- Department of Oncology, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, Maryland.,Department of Urology, Johns Hopkins University School of Medicine, Baltimore, Maryland
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Quercetin Dietary Supplementation Advances Growth Performance, Gut Microbiota, and Intestinal mRNA Expression Genes in Broiler Chickens. Animals (Basel) 2021; 11:ani11082302. [PMID: 34438756 PMCID: PMC8388376 DOI: 10.3390/ani11082302] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Revised: 07/26/2021] [Accepted: 07/30/2021] [Indexed: 12/16/2022] Open
Abstract
Simple Summary The biological activity of quercetin is diverse, particularly antioxidant, antimicrobial, and antibacterial. The impacts of quercetin nutritional supplementations on growth performance, humoral immunity, gut microbiota and mRNA in broiler chickens were recorded. Abstract Quercetin was fed to groups of broiler chickens at concentrations of 200, 400, and 800 ppm, and a control group was supplemented with a basal diet. Results revealed that quercetin dietary supplementation numerically improved the growth performance traits and significantly increased (p < 0.05) the European production efficiency factor (EPEF) in the 200 ppm group. The total coliforms and Clostridium perfringens were decreased (p < 0.05) in quercetin-supplemented groups. Conversely, Lactobacillus counts were increased (p < 0.05), due to improvement of the gut microbiota environment in quercetin-supplemented groups. Moreover, the mRNA expression of intestinal Cu/Zn-superoxide dismutase (SOD1), glutathione peroxidase (GSH-Px) and nutritional transporters, including glucose transporter 2 (GLUT2), peptide transporter 1 (PEPT1), and fatty acid synthase (FAS) genes, were significantly upregulated in quercetin-supplemented groups. Quercetin enhanced intestinal morphometry. We can suggest quercetin supplementation in broiler chickens by levels between 200 and 400 ppm to enhance their development and gut environment.
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Li D, Feng Y, Tian M, Ji J, Hu X, Chen F. Gut microbiota-derived inosine from dietary barley leaf supplementation attenuates colitis through PPARγ signaling activation. MICROBIOME 2021; 9:83. [PMID: 33820558 PMCID: PMC8022418 DOI: 10.1186/s40168-021-01028-7] [Citation(s) in RCA: 87] [Impact Index Per Article: 29.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Accepted: 02/05/2021] [Indexed: 05/12/2023]
Abstract
BACKGROUND Ulcerative colitis is a type of chronic inflammatory bowel disease closely associated with gut microbiota dysbiosis and intestinal homeostasis dysregulation. Barley leaf (BL) has a long history of use in Traditional Chinese Medicine with potential health-promoting effects on intestinal functions. However, its mechanism of action is not yet clear. Here, we explore the potential modulating roles of gut microbial metabolites of BL to protect against colitis and elucidate the underlying molecular mechanisms. RESULTS Using 16S rRNA gene-based microbiota analysis, we first found that dietary supplementation of BL ameliorated dextran sulfate sodium (DSS)-induced gut microbiota dysbiosis. The mechanisms by which BL protected against DSS-induced colitis were resulted from improved intestinal mucosal barrier functions via the activation of peroxisome proliferator-activated receptor (PPAR)γ signaling. In addition, metabolomic profiling analysis showed that the gut microbiota modulated BL-induced metabolic reprograming in the colonic tissues particularly by the enhancement of glycolysis process. Notably, dietary BL supplementation resulted in the enrichment of microbiota-derived purine metabolite inosine, which could activate PPARγ signaling in human colon epithelial cells. Furthermore, exogenous treatment of inosine reproduced similar protective effects as BL to protect against DSS-induced colitis through improving adenosine 2A receptor (A2AR)/PPARγ-dependent mucosal barrier functions. CONCLUSIONS Overall, our findings suggest that the gut microbiota-inosine-A2AR/PPARγ axis plays an important role in the maintenance of intestinal homeostasis, which may represent a novel approach for colitis prevention via manipulation of the gut microbial purine metabolite. Video Abstract.
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Affiliation(s)
- Daotong Li
- College of Food Science and Nutritional Engineering, National Engineering Research Center for Fruit and Vegetable Processing, Key Laboratory of Fruits and Vegetables Processing, Ministry of Agriculture; Engineering Research Centre for Fruits and Vegetables Processing, Ministry of Education, China Agricultural University, No.17, Qinghua East Road, Haidian District, Beijing, 100083, China
- Department of Anatomy, Histology and Embryology, Health Science Center, Peking University, Beijing, China
| | - Yu Feng
- College of Food Science and Nutritional Engineering, National Engineering Research Center for Fruit and Vegetable Processing, Key Laboratory of Fruits and Vegetables Processing, Ministry of Agriculture; Engineering Research Centre for Fruits and Vegetables Processing, Ministry of Education, China Agricultural University, No.17, Qinghua East Road, Haidian District, Beijing, 100083, China
| | - Meiling Tian
- College of Food Science and Nutritional Engineering, National Engineering Research Center for Fruit and Vegetable Processing, Key Laboratory of Fruits and Vegetables Processing, Ministry of Agriculture; Engineering Research Centre for Fruits and Vegetables Processing, Ministry of Education, China Agricultural University, No.17, Qinghua East Road, Haidian District, Beijing, 100083, China
| | - Junfu Ji
- College of Food Science and Nutritional Engineering, National Engineering Research Center for Fruit and Vegetable Processing, Key Laboratory of Fruits and Vegetables Processing, Ministry of Agriculture; Engineering Research Centre for Fruits and Vegetables Processing, Ministry of Education, China Agricultural University, No.17, Qinghua East Road, Haidian District, Beijing, 100083, China
| | - Xiaosong Hu
- College of Food Science and Nutritional Engineering, National Engineering Research Center for Fruit and Vegetable Processing, Key Laboratory of Fruits and Vegetables Processing, Ministry of Agriculture; Engineering Research Centre for Fruits and Vegetables Processing, Ministry of Education, China Agricultural University, No.17, Qinghua East Road, Haidian District, Beijing, 100083, China
| | - Fang Chen
- College of Food Science and Nutritional Engineering, National Engineering Research Center for Fruit and Vegetable Processing, Key Laboratory of Fruits and Vegetables Processing, Ministry of Agriculture; Engineering Research Centre for Fruits and Vegetables Processing, Ministry of Education, China Agricultural University, No.17, Qinghua East Road, Haidian District, Beijing, 100083, China.
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Hajjar R, Richard CS, Santos MM. The role of butyrate in surgical and oncological outcomes in colorectal cancer. Am J Physiol Gastrointest Liver Physiol 2021; 320:G601-G608. [PMID: 33404375 PMCID: PMC8238168 DOI: 10.1152/ajpgi.00316.2020] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Butyrate is a short-chain fatty acid produced by colonic gut bacteria as a result of fermentation of dietary fibers. In the colon, butyrate is a major energy substrate and contributes to the nutritional support and proliferation of a healthy mucosa. It also promotes the intestinal barrier function by enhancing mucus production and tight junctions. In addition to its pro-proliferative effect in healthy colonocytes, butyrate inhibits the proliferation of cancer cells. The antineoplastic effect of butyrate is associated with the inhibitory effect of butyrate on histone deacetylase (HDAC) enzymes, which promote carcinogenesis. Due to the metabolic shift of cancer cells toward glycolysis, unused butyrate accumulates and inhibits procarcinogenic HDACs. In addition, recent studies suggest that butyrate may improve the healing of colonic tissue after surgery in animal models, specifically at the site of reconnection of colonic ends, anastomosis, after surgical resection. Here, we review current evidence on the impact of butyrate on epithelial integrity and colorectal cancer and present current knowledge on data that support its potential applications in surgical practice.
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Affiliation(s)
- Roy Hajjar
- 1Nutrition and Microbiome Laboratory, Institut du cancer de Montréal, Centre de recherche du Centre hospitalier de l’Université de Montréal (CRCHUM), Montreal, Quebec, Canada,2Department of Surgery, Faculty of Medicine, Université de Montréal, Montreal, Quebec, Canada
| | - Carole S. Richard
- 1Nutrition and Microbiome Laboratory, Institut du cancer de Montréal, Centre de recherche du Centre hospitalier de l’Université de Montréal (CRCHUM), Montreal, Quebec, Canada,2Department of Surgery, Faculty of Medicine, Université de Montréal, Montreal, Quebec, Canada
| | - Manuela M. Santos
- 1Nutrition and Microbiome Laboratory, Institut du cancer de Montréal, Centre de recherche du Centre hospitalier de l’Université de Montréal (CRCHUM), Montreal, Quebec, Canada,3Department of Medicine, Faculty of Medicine, Université de Montréal, Montreal, Quebec, Canada
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Yang G, Wei J, Liu P, Zhang Q, Tian Y, Hou G, Meng L, Xin Y, Jiang X. Role of the gut microbiota in type 2 diabetes and related diseases. Metabolism 2021; 117:154712. [PMID: 33497712 DOI: 10.1016/j.metabol.2021.154712] [Citation(s) in RCA: 128] [Impact Index Per Article: 42.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/04/2020] [Revised: 12/27/2020] [Accepted: 01/20/2021] [Indexed: 02/08/2023]
Abstract
Type 2 diabetes is the fastest-growing metabolic disease in the world. Many clinical studies have found that type 2 diabetes patients have metabolic disorders and chronic inflammatory states accompanied by disturbances in the gut microbiota. The gut microbiota plays an important role in body metabolism and immune regulation, and disturbances in the gut microbiota in conjunction with destruction of the intestinal barrier in type 2 diabetes patients causes damage to multiple organs. Therefore, the gut microbiota may be a new therapeutic target for treating type 2 diabetes and related diseases. In this review, we introduce the characteristics of the gut microbiota in type 2 diabetes and related diseases, as well as highlight the potential molecular mechanisms of their effects on intestinal barrier disruption, metabolic disorders, and chronic inflammation. Finally, we summarize an intestinal microecological therapeutic strategy, with a focus on shaping the intestinal bacteria, to improve the malignant progress of type 2 diabetes and related diseases. AUTHOR SUMMARY: Type 2 diabetes (T2D) is the fastest-growing metabolic disease in the world. Many clinical studies have found that T2D patients have metabolic disorders and chronic inflammatory states, accompanied by disturbances of the gut microbiota and increased intestinal permeability. The number of human gut microbiota is more than 10 times of human cells, and they play an important role in the body's metabolism and immune regulation. The abnormal intestinal metabolites and intestinal barrier disruption caused by the gut microbiota dysbiosis in the T2D facilitate intestinal bacteria and their harmful metabolites entering the circulatory system. The abnormal entering will cause the damage to multiple organs through disturbing insulin sensitivity, glucose metabolism, and immune homeostasis. Therefore, the gut microbiota may be a new therapeutic target for improving T2D and its related diseases. In this review, we introduce the compositional characteristics of the gut microbiota in T2D, and highlight some new molecular mechanisms of their effects on intestinal barrier disruption, metabolic disorders and chronic inflammation in T2D and its related diseases. Finally, we summarize an intestinal microecological therapeutic strategy, with a focus on shaping the intestinal bacteria, to improve the malignant progress of T2D and related diseases.
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Affiliation(s)
- Ge Yang
- Department of Radiation Oncology, The First Hospital of Jilin University, Changchun 130021, China; Key Laboratory of Pathobiology, Ministry of Education, Jilin University, Changchun 130021, China; Jilin Provincial Key Laboratory of Radiation Oncology & Therapy, The First Hospital of Jilin University, Changchun 130021, China
| | - Jinlong Wei
- Department of Radiation Oncology, The First Hospital of Jilin University, Changchun 130021, China; Jilin Provincial Key Laboratory of Radiation Oncology & Therapy, The First Hospital of Jilin University, Changchun 130021, China
| | - Pinyi Liu
- Department of Radiation Oncology, The First Hospital of Jilin University, Changchun 130021, China; Key Laboratory of Pathobiology, Ministry of Education, Jilin University, Changchun 130021, China; Jilin Provincial Key Laboratory of Radiation Oncology & Therapy, The First Hospital of Jilin University, Changchun 130021, China
| | - Qihe Zhang
- Department of Radiation Oncology, The First Hospital of Jilin University, Changchun 130021, China; Key Laboratory of Pathobiology, Ministry of Education, Jilin University, Changchun 130021, China; Jilin Provincial Key Laboratory of Radiation Oncology & Therapy, The First Hospital of Jilin University, Changchun 130021, China
| | - Yuan Tian
- Key Laboratory of Pathobiology, Ministry of Education, Jilin University, Changchun 130021, China; Department of Gynecology, The Second Hospital of Jilin University, Changchun 130041, China
| | - Guowen Hou
- Department of Radiation Oncology, The First Hospital of Jilin University, Changchun 130021, China; Key Laboratory of Pathobiology, Ministry of Education, Jilin University, Changchun 130021, China; Jilin Provincial Key Laboratory of Radiation Oncology & Therapy, The First Hospital of Jilin University, Changchun 130021, China
| | - Lingbin Meng
- Department of Hematology and Medical Oncology, Moffitt Cancer Center, Tampa, FL 33612, USA
| | - Ying Xin
- Key Laboratory of Pathobiology, Ministry of Education, Jilin University, Changchun 130021, China.
| | - Xin Jiang
- Department of Radiation Oncology, The First Hospital of Jilin University, Changchun 130021, China; Jilin Provincial Key Laboratory of Radiation Oncology & Therapy, The First Hospital of Jilin University, Changchun 130021, China.
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Falchook G, Infante J, Arkenau HT, Patel MR, Dean E, Borazanci E, Brenner A, Cook N, Lopez J, Pant S, Frankel A, Schmid P, Moore K, McCulloch W, Grimmer K, O'Farrell M, Kemble G, Burris H. First-in-human study of the safety, pharmacokinetics, and pharmacodynamics of first-in-class fatty acid synthase inhibitor TVB-2640 alone and with a taxane in advanced tumors. EClinicalMedicine 2021; 34:100797. [PMID: 33870151 PMCID: PMC8040281 DOI: 10.1016/j.eclinm.2021.100797] [Citation(s) in RCA: 110] [Impact Index Per Article: 36.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND We conducted a first-in-human dose-escalation study with the oral FASN inhibitor TVB-2640 to determine the maximum tolerated dose (MTD) and recommended phase 2 dose (RP2D), as monotherapy and with a taxane. METHODS This completed open-label outpatient study was conducted at 11 sites in the United States and United Kingdom. Patients with previously-treated advanced metastatic solid tumors and adequate performance status and organ function were eligible. TVB-2640 was administered orally daily until PD. Dose escalation initially followed an accelerated titration design that switched to a standard 3 + 3 design after Grade 2 toxicity occurred. Disease-specific cohorts were enrolled at the MTD. Statistical analyses were primarily descriptive. Safety analyses were performed on patients who received at least 1 dose of study drug. (Clinicaltrials.gov identifier NCT02223247). FINDINGS The study was conducted from 21 November 2013 to 07 February 2017. Overall, 136 patients received TVB-2640, 76 as monotherapy (weight-based doses of 60 mg/m2 to 240 mg/m2 and flat doses of 200 and 250 mg) and 60 in combination, (weight-based doses of 60 mg/m2 to 100 mg/m2 and flat dose of 200 mg) (55 paclitaxel, 5 docetaxel). DLTs with TVB-2640 were reversible skin and ocular effects. The MTD/RP2D was 100 mg/m2. The most common TEAEs (n,%) with TVB-2640 monotherapy were alopecia (46; 61%), PPE syndrome (35; 46%), fatigue (28; 37%), decreased appetite (20; 26%), and dry skin (17; 22%), and with TVB-2640+paclitaxel were fatigue (29 ; 53%), alopecia (25; 46%), PPE syndrome (25; 46%), nausea (22; 40%), and peripheral neuropathy (20; 36%). One fatal case of drug-related pneumonitis occurred with TVB-2640+paclitaxel; no other treatment-related deaths occurred. Target engagement (FASN inhibition) and inhibition of lipogenesis were demonstrated with TVB-2640. The disease control rate (DCR) with TVB-2640 monotherapy was 42%; no patient treated with monotherapy had a complete or partial response (CR or PR). In combination with paclitaxel, the PR rate was 11% and the DCR was 70%. Responses were seen across multiple tumor types, including in patients with KRASMUT NSCLC, ovarian, and breast cancer. INTERPRETATION TVB-2640 demonstrated potent FASN inhibition and a predictable and manageable safety profile, primarily characterized by non-serious, reversible adverse events affecting skin and eyes. Further investigation of TVB-2640 in patients with solid tumors, particularly in KRASMUT lung, ovarian, and breast cancer, is warranted. FUNDING This trial was funded by 3-V Biosciences, Inc. (now known as Sagimet Biosciences Inc.).
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Affiliation(s)
- Gerald Falchook
- Sarah Cannon Research Institute at HealthONE, 1800 Williams St Ste 300, Denver, CO, 80218, United States
| | - Jeffrey Infante
- Tennessee Oncology, 250 25th Ave N #100, Nashville, TN 37203, United States
| | - Hendrik-Tobias Arkenau
- Sarah Cannon Research Institute UK, 93 Harley St., Marylebone, London W1G 6AD, United Kingdom
| | - Manish R. Patel
- Florida Cancer Specialists and Research Institute, 600 N Cattleman Rd, Ste 200, Sarasota, FL 34232, United States
- Sarah Cannon Research Institute, 1100 Martin L. King Jr. Boulevard, Nashville, TN 37203 United States
| | - Emma Dean
- Christie Hospital – Clinical Oncology, The Christie NHS Foundation Trust, Clinical Oncology Department, Wilmslow Road, Manchester, M20 4BX, United Kingdom
| | - Erkut Borazanci
- Scottsdale Healthcare Research Institute, 10510 North 92nd Street, Suite 200, Scottsdale, AZ 85258, United States
| | - Andrew Brenner
- CTRC at The University of Texas Health Center, 7979 Wurzbach Rd., San Antonio, TX 78229, United States
| | - Natalie Cook
- Christie Hospital – Clinical Oncology, The Christie NHS Foundation Trust, Clinical, Oncology Department, Wilmslow Road, Manchester, M20 4BX, United Kingdom
- Division of Cancer Sciences, University of Manchester, Oxford Rd, Manchester, M13 9PL, United Kingdom
| | - Juanita Lopez
- Royal Marsden Hospital, Downs Road, Sutton, SM25PT, United Kingdom
| | - Shubham Pant
- University of Oklahoma Health Sciences, 800 NE 10 Street, 5th Floor, Oklahoma City, OK 73104, United States
| | - Arthur Frankel
- UT Southwestern Medical Center, 5323 Harry Hines Blvd., Dallas, TX 75390, United States
| | - Peter Schmid
- St Bartholomew's Hospital, West Smithfield, London, EC1A7BE, United Kingdom
| | - Kathleen Moore
- University of Oklahoma Health Sciences, 800 NE 10 Street, 5th Floor, Oklahoma City, OK 73104, United States
| | - William McCulloch
- Sagimet Biosciences Inc., 155 Bovet Rd., San Mateo, CA 94402, United States
- Corresponding author at: Sagimet Biosciences Inc., 155 Bovet Rd., San Mateo, CA 94402, USA.
| | - Katharine Grimmer
- Sagimet Biosciences Inc., 155 Bovet Rd., San Mateo, CA 94402, United States
| | - Marie O'Farrell
- Sagimet Biosciences Inc., 155 Bovet Rd., San Mateo, CA 94402, United States
| | - George Kemble
- Sagimet Biosciences Inc., 155 Bovet Rd., San Mateo, CA 94402, United States
| | - Howard Burris
- Sarah Cannon Research Institute, 1100 Martin L. King Jr. Boulevard, Nashville, TN 37203 United States
- Tennessee Oncology, 250 25th Ave N #100, Nashville, TN 37203, United States
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Basson AR, Chen C, Sagl F, Trotter A, Bederman I, Gomez-Nguyen A, Sundrud MS, Ilic S, Cominelli F, Rodriguez-Palacios A. Regulation of Intestinal Inflammation by Dietary Fats. Front Immunol 2021; 11:604989. [PMID: 33603741 PMCID: PMC7884479 DOI: 10.3389/fimmu.2020.604989] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Accepted: 12/11/2020] [Indexed: 12/12/2022] Open
Abstract
With the epidemic of human obesity, dietary fats have increasingly become a focal point of biomedical research. Epidemiological studies indicate that high-fat diets (HFDs), especially those rich in long-chain saturated fatty acids (e.g., Western Diet, National Health Examination survey; NHANES 'What We Eat in America' report) have multi-organ pro-inflammatory effects. Experimental studies have confirmed some of these disease associations, and have begun to elaborate mechanisms of disease induction. However, many of the observed effects from epidemiological studies appear to be an over-simplification of the mechanistic complexity that depends on dynamic interactions between the host, the particular fatty acid, and the rather personalized genetics and variability of the gut microbiota. Of interest, experimental studies have shown that certain saturated fats (e.g., lauric and myristic fatty acid-rich coconut oil) could exert the opposite effect; that is, desirable anti-inflammatory and protective mechanisms promoting gut health by unanticipated pathways. Owing to the experimental advantages of laboratory animals for the study of mechanisms under well-controlled dietary settings, we focus this review on the current understanding of how dietary fatty acids impact intestinal biology. We center this discussion on studies from mice and rats, with validation in cell culture systems or human studies. We provide a scoping overview of the most studied diseases mechanisms associated with the induction or prevention of Inflammatory Bowel Disease in rodent models relevant to Crohn's Disease and Ulcerative Colitis after feeding either high-fat diet (HFD) or feed containing specific fatty acid or other target dietary molecule. Finally, we provide a general outlook on areas that have been largely or scarcely studied, and assess the effects of HFDs on acute and chronic forms of intestinal inflammation.
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Affiliation(s)
- Abigail R. Basson
- Division of Gastroenterology and Liver Diseases, School of Medicine, Case Western Reserve University School of Medicine, Cleveland, OH, United States
- Digestive Health Research Institute, School of Medicine, Case Western Reserve University, Cleveland, OH, United States
- Cleveland Digestive Diseases Research Core, School of Medicine, Case Western Reserve University, Cleveland, OH, United States
- Digestive Health Institute, University Hospitals Cleveland Medical Center, Cleveland, OH, United States
| | - Christy Chen
- Digestive Health Research Institute, School of Medicine, Case Western Reserve University, Cleveland, OH, United States
| | - Filip Sagl
- Digestive Health Research Institute, School of Medicine, Case Western Reserve University, Cleveland, OH, United States
| | - Ashley Trotter
- Division of Gastroenterology and Liver Diseases, School of Medicine, Case Western Reserve University School of Medicine, Cleveland, OH, United States
- Digestive Health Research Institute, School of Medicine, Case Western Reserve University, Cleveland, OH, United States
- Department of Hospital Medicine, Pritzker School of Medicine, NorthShore University Health System, Chicago, IL, United States
| | - Ilya Bederman
- Department of Genetics and Genome Sciences, Case Western Reserve University, Cleveland, OH, United States
| | - Adrian Gomez-Nguyen
- Division of Gastroenterology and Liver Diseases, School of Medicine, Case Western Reserve University School of Medicine, Cleveland, OH, United States
- Digestive Health Research Institute, School of Medicine, Case Western Reserve University, Cleveland, OH, United States
- Cleveland Digestive Diseases Research Core, School of Medicine, Case Western Reserve University, Cleveland, OH, United States
| | - Mark S. Sundrud
- Department of Immunology and Microbiology, The Scripps Research Institute, Jupiter, FL, United States
| | - Sanja Ilic
- Department of Human Sciences, Human Nutrition, College of Education and Human Ecology, The Ohio State University, Columbus, OH, United States
| | - Fabio Cominelli
- Division of Gastroenterology and Liver Diseases, School of Medicine, Case Western Reserve University School of Medicine, Cleveland, OH, United States
- Digestive Health Research Institute, School of Medicine, Case Western Reserve University, Cleveland, OH, United States
- Cleveland Digestive Diseases Research Core, School of Medicine, Case Western Reserve University, Cleveland, OH, United States
- Digestive Health Institute, University Hospitals Cleveland Medical Center, Cleveland, OH, United States
| | - Alex Rodriguez-Palacios
- Division of Gastroenterology and Liver Diseases, School of Medicine, Case Western Reserve University School of Medicine, Cleveland, OH, United States
- Digestive Health Research Institute, School of Medicine, Case Western Reserve University, Cleveland, OH, United States
- Cleveland Digestive Diseases Research Core, School of Medicine, Case Western Reserve University, Cleveland, OH, United States
- Digestive Health Institute, University Hospitals Cleveland Medical Center, Cleveland, OH, United States
- University Hospitals Research and Education Institute, University Hospitals Cleveland Medical Center, Cleveland, OH, United States
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48
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Abstract
Metabolic syndrome (MetS) describes a set of risk factors that can eventually lead to the occurrence of cardiovascular and cerebrovascular disease. A detailed understanding of the MetS mechanism will be helpful in developing effective prevention strategies and appropriate intervention tools. In this article, we discuss the relationship between the clinical symptoms of MetS and differences in the gut microbial community compared with healthy individuals, characterized by the proliferation of potentially harmful bacteria and the inhibition of beneficial ones. Interactions between gut microbiota and host metabolism have been shown to be mediated by a number of factors, including inflammation caused by gut barrier defects, short-chain fatty acids metabolism, and bile acid metabolism. However, although we can clearly establish a causal relationship between gut microbial profiles and MetS in animal experiments, the relationship between them is still controversial in humans. Therefore, we need more clinical studies to augment our understanding of how we can manipulate the gut microbiota and address the role of the gut microbiota in the prevention and treatment of MetS.
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49
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Zhao Y, Li P, Chen N, Liu Y, Liu D, Guo Y. Effects of housing systems and glucose oxidase on growth performance and intestinal health of Beijing You Chickens. Poult Sci 2020; 100:100943. [PMID: 33652241 PMCID: PMC7921002 DOI: 10.1016/j.psj.2020.12.040] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2020] [Revised: 12/10/2020] [Accepted: 12/16/2020] [Indexed: 01/14/2023] Open
Abstract
We investigated the effects of housing systems and dietary glucose oxidase (GOD) on the growth performance and intestinal health of Beijing You chickens (BYC). The experiment was designed as a factorial arrangement of 2 housing systems × 2 dietary treatments. Chickens were fed a basal diet or a diet with 200 U/kg GOD and were reared on the floor with deep litter or in the cages. Compared with the litter floor groups, the decreased average daily feed intake of 1 to 42 d, decreased feed conversion ratio (FCR), improved average daily gain of 42 to 77 d, and the whole period were identified in the cage rearing groups (P < 0.05). The FCR of 42 to 77 d and the whole period, the 42-d ileal pH, and 77-d jejunal and ileal pH decreased with the supplement of GOD (P < 0.05). Additionally, 16S rRNA gene of ileum contents was sequenced by high-throughput sequencing. Sequencing data indicated that the Firmicutes phylum of 42 d and the Bacteroidetes phylum were significantly higher in the litter group with GOD supplement (P < 0.05). The jejunal Occludin, Mucin-2 mRNA expression levels were higher in the litter floor groups than those in the cage rearing groups on 42 d (P < 0.05). The Mucin-2 and TNF-α mRNA expression levels increased with cage rearing on 77 d (P < 0.05). The Occludin and TLR-4 mRNA expression levels increased with the supplementation of GOD on 77 d (P < 0.05). Moreover, the upregulation effects of Occludin and ZO-1 mRNA expression levels were more obvious in the litter floor group fed with GOD diet on 77 d (P < 0.05). The serum endotoxin content of 42-day-old cage rearing groups were higher than that of the litter floor groups, and the serum endotoxin content significantly decreased with the supplement of GOD on 77 d. The results indicated that the litter floor systems were beneficial to the development of intestinal barrier junction in the early stage, but the cage systems were more conducive to the growth performance of BYC. The dietary GOD could inhibit the harmful bacteria and promote the beneficial bacteria, which might be related to the improvement of the growth performance and intestinal barrier function.
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Affiliation(s)
- Yizhu Zhao
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Peng Li
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Ningbo Chen
- Jinan Bestzyme Bio-Engineering Co., Ltd., Jinan, China
| | - Yanjie Liu
- Jinan Bestzyme Bio-Engineering Co., Ltd., Jinan, China
| | - Dan Liu
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, China.
| | - Yuming Guo
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, China
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50
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Wang J, Clark DL, Jacobi SK, Velleman SG. Supplementation of vitamin E and omega-3 fatty acids during the early posthatch period on intestinal morphology and gene expression differentiation in broilers. Poult Sci 2020; 100:100954. [PMID: 33518304 PMCID: PMC7936210 DOI: 10.1016/j.psj.2020.12.051] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2020] [Revised: 12/01/2020] [Accepted: 12/18/2020] [Indexed: 02/06/2023] Open
Abstract
Early posthatch nutrition is important for gut health. Vitamin E (VE) and omega-3 (n-3) fatty acids can improve gut health through antioxidative and anti-inflammatory effects. The objective of this study was to identify the effects of VE, n-3 fatty acids, and combination of both during the starter phase (0–10 d) or grower phase (11–24 d) on intestinal morphology and expression of genes associated with gut health. A total of 210 Ross 708 broilers were randomly assigned into 7 treatments with 10 replicates of 3 birds each. The control group was fed a corn–soybean meal–basal diet during the entire study (0–58 d). Supplementation of VE (200 IU/kg), n-3 fatty acids (n-6/n-3 ratio of 3.2:1), and combination of both were fed during the starter phase (0–10 d) or grower phase (11–24 d). All of the broilers were harvested at 58 d of age. Villus height, crypt depth, villus width, distance between villi, and number of intraepithelial lymphocytes were obtained. Expression of 21 genes was measured using NanoString analysis. Expression of solute carrier family 15 member 1 (P = 0.01) associated with peptide transport and mucin 2 (P = 0.03) related with intestinal mucus barrier was increased in the broilers supplemented with n-3 fatty acids in the grower diet compared with the control. Expression of solute carrier family 7 member 1 associated with amino acid transport was decreased in the group supplemented with n-3 fatty acids during the starter phase compared with the group supplemented with n-3 fatty acids (P = 0.01) or VE and n-3 fatty acids during the grower phase (P = 0.03). These data suggest that VE and n-3 fatty acids supplemented during the grower phase have a positive effect on improving nutrient transport with n-3 fatty acids supplementation in the grower diet showing the most beneficial effect. These findings can be used in the development of nutritional management strategies to improve broiler growth performance and meat quality.
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Affiliation(s)
- Ji Wang
- Department of Animal Sciences, The Ohio State University, Wooster OH 44691, USA
| | - Daniel L Clark
- Department of Animal Sciences, The Ohio State University, Wooster OH 44691, USA
| | - Sheila K Jacobi
- Department of Animal Sciences, The Ohio State University, Wooster OH 44691, USA
| | - Sandra G Velleman
- Department of Animal Sciences, The Ohio State University, Wooster OH 44691, USA.
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