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Brasil VP, Siqueira RM, Campos FG, Yoshitani MM, Pereira GP, Mendonça RLDS, Kanno DT, Pereira JA, Martinez CAR. Mucin levels in glands of the colonic mucosa of rats with diversion colitis subjected to enemas containing sucralfate and n-acetylcysteine alone or in combination. Acta Cir Bras 2023; 38:e384023. [PMID: 37851785 PMCID: PMC10578094 DOI: 10.1590/acb384023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Accepted: 07/17/2023] [Indexed: 10/20/2023] Open
Abstract
PURPOSE To evaluate the tissue content of neutral and acidic mucins, sulfomucins and sialomucins in colonic glands devoid of intestinal transit after enemas containing sucralfate and n-acetylcysteine alone or in combination. METHODS Sixty-four rats underwent intestinal transit bypass. A colonic segment was collected to compose the white group (without intervention). After derivation, the animals were divided into two groups according to whether enemas were performed daily for two or four weeks. Each group was subdivided into four subgroups according to the substance used: control group: saline 0.9%; sucralfate group (SCF): SCF 2 g/kg/day; n-acetylcysteine group (NAC): NAC 100 mg/kg/day; and SCF+NAC group: SCF 2 g/kg/day + NAC 100 mg/kg/day.Neutral and acidic mucins were stained by periodic acid-Schiff and alcian-blue techniques, respectively. The distinction between sulfomucins and sialomucin was made by the high alcian-blue iron diamine technique. The content of mucins in the colonic glands was measured by computerized morphometry. The inflammatory score was assessed using a validated scale. The results between the groups were compared by the Mann-Whitney's test, while the variation according to time by the Kruskal-Wallis' test (Dunn's post-test). A significance level of 5% was adopted. RESULTS There was reduction in the inflammatory score regardless of the application of isolated or associated substances. Intervention with SCF+NAC increased the content of all mucin subtypes regardless of intervention time. CONCLUSIONS The application of SCF+NAC reduced the inflammatory process of the colonic mucosa and increased the content of different types of mucins in the colonic glands of segments excluded from fecal transit.
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Affiliation(s)
- Verena Palmeiras Brasil
- Universidade Estadual de Campinas – Postgraduate Program in Surgical Sciences – Campinas (São Paulo) – Brazil
| | - Rayama Moreira Siqueira
- Universidade Estadual de Campinas – Postgraduate Program in Surgical Sciences – Campinas (São Paulo) – Brazil
| | - Fabio Guilherme Campos
- Universidade de São Paulo – Department of Gastroenterology – Faculty of Medicine – São Paulo (São Paulo) – Brazil
| | - Mateus Magami Yoshitani
- Universidade São Francisco – Faculty of Medicine – Medical School – Bragança Paulista (São Paulo) – Brazil
| | - Geovanna Pacciulli Pereira
- Universidade São Francisco – Faculty of Medicine – Medical School – Bragança Paulista (São Paulo) – Brazil
| | | | - Danilo Toshio Kanno
- Universidade São Francisco – Faculty of Medicine – Medical School – Bragança Paulista (São Paulo) – Brazil
| | - José Aires Pereira
- Universidade São Francisco – Faculty of Medicine – Medical School – Bragança Paulista (São Paulo) – Brazil
| | - Carlos Augusto Real Martinez
- Universidade Estadual de Campinas – Postgraduate Program in Surgical Sciences – Campinas (São Paulo) – Brazil
- Universidade São Francisco – Faculty of Medicine – Medical School – Bragança Paulista (São Paulo) – Brazil
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Interaction between Butyrate and Tumor Necrosis Factor α in Primary Rat Colonocytes. Biomolecules 2023; 13:biom13020258. [PMID: 36830627 PMCID: PMC9953264 DOI: 10.3390/biom13020258] [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: 12/07/2022] [Revised: 01/15/2023] [Accepted: 01/24/2023] [Indexed: 02/01/2023] Open
Abstract
Butyrate, a short-chain fatty acid, is utilized by the gut epithelium as energy and it improves the gut epithelial barrier. More recently, it has been associated with beneficial effects on immune and cardiovascular homeostasis. Conversely, tumor necrosis factor alpha (TNFα) is a pro-inflammatory and pro-hypertensive cytokine. While butyrate and TNFα are both linked with hypertension, studies have not yet addressed their interaction in the colon. Here, we investigated the capacity of butyrate to modulate a host of effects of TNFα in primary rodent colonic cells in vitro. We measured ATP levels, cell viability, mitochondrial membrane potential (MMP), reactive oxygen species (ROS), mitochondrial oxidative phosphorylation, and glycolytic activity in colonocytes following exposure to either butyrate or TNFα, or both. To address the potential mechanisms, transcripts related to oxidative stress, cell fate, and cell metabolism (Pdk1, Pdk2, Pdk4, Spr, Slc16a1, Slc16a3, Ppargc1a, Cs, Lgr5, Casp3, Tnfr2, Bax, Bcl2, Sod1, Sod2, and Cat) were measured, and untargeted liquid chromatography-tandem mass spectrometry (LC-MS/MS) was employed to profile the metabolic responses of colonocytes following exposure to butyrate and TNFα. We found that both butyrate and TNFα lowered cellular ATP levels towards a quiescent cell energy phenotype, characterized by decreased oxygen consumption and extracellular acidification. Co-treatment with butyrate ameliorated TNFα-induced cytotoxicity and the reduction in cell viability. Butyrate also opposed the TNFα-mediated decrease in MMP and mitochondrial-to-intracellular calcium ratios, suggesting that butyrate may protect colonocytes against TNFα-induced cytotoxicity by decreasing mitochondrial calcium flux. The relative expression levels of pyruvate dehydrogenase kinase 4 (Pdk4) were increased via co-treatment of butyrate and TNFα, suggesting the synergistic inhibition of glycolysis. TNFα alone reduced the expression of monocarboxylate transporters slc16a1 and slc16a3, suggesting effects of TNFα on butyrate uptake into colonocytes. Of the 185 metabolites that were detected with LC-MS, the TNFα-induced increase in biopterin produced the only significant change, suggesting an alteration in mitochondrial biogenesis in colonocytes. Considering the reports of elevated colonic TNFα and reduced butyrate metabolism in many conditions, including in hypertension, the present work sheds light on cellular interactions between TNFα and butyrate in colonocytes that may be important in understanding conditions of the colon.
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Sato DT, Campos FG, Kotze PG, Mendonça RLS, Kanno DT, Pereira JA, Martinez CAR. Sucralfate enemas reduce the oxidative tissue damage and preserves the contents of E-cadherin and ?-catenin in colonic mucosa without fecal stream. Acta Cir Bras 2021; 36:e361007. [PMID: 34852133 PMCID: PMC8650803 DOI: 10.1590/acb361007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Accepted: 09/15/2021] [Indexed: 11/21/2022] Open
Abstract
PURPOSE To evaluate the effects of sucralfate enemas in tissue contents of E-cadherin and ?-catenin in an experimental diversion colitis. METHODS Thirty-six male Wistar rats were submitted to a proximal colostomy and a distal mucous fistula. They were allocated into three groups: first group received daily saline enemas (2 mL/day) and the two other groups daily enemas with sucralfate at dosage of 1 or 2 g/kg/day, respectively. Six animals of each group were euthanized after two weeks and six animals after four weeks. The inflammation of the excluded mucosa was evaluated by histological analysis. The oxidative damage was quantified by measurement of malondialdehyde tissue levels. The expression of E-cadherin and ?-catenin was identified by immunohistochemistry, and its contents were quantified by computer-assisted image analysis. RESULTS Sucralfate enemas reduced inflammation in animals subjected to treatment with 2 g/kg/day by four weeks, and the levels of oxidative damage in mucosa without fecal stream irrespective of concentration and time of intervention. E-cadherin and ?-catenin content increased in segments without fecal stream in those animals subjected to treatment with sucralfate. CONCLUSIONS Sucralfate reduces the inflammation and oxidative stress and increases the tissue content of E-cadherin and ?-catenin in colonic mucosa devoid to the fecal stream.
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Alves Junior AJT, Pereira JA, Ávila MGD, Domingues FA, Sato DT, Martinez CAR. Tissue content of metalloproteinase-9 and collagen in the colon with and without fecal stream after intervention with infliximab in rats subjected to Hartmann's surgery. Acta Cir Bras 2021; 36:e360401. [PMID: 34008743 PMCID: PMC8128352 DOI: 10.1590/acb360401] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Accepted: 03/15/2021] [Indexed: 12/29/2022] Open
Abstract
PURPOSE Quantify the tissue content of metalloproteinase-9 (MMP-9) and collagen in colic mucosa with and without intestinal transit after infliximab administration in rats subjected to Hartmann's surgery. METHODS Twenty-two rats underwent colon diversion by Hartmann's surgery. Animals were maintained with intestinal bypass for 12 weeks to induce development of diversion colitis (DC). Afterwards, animals were divided into three groups: first group received subcutaneous application of saline solution (SS) 0.9%, while the remaining two groups received infliximab subcutaneously at doses of 5 or 10 mg·kg-1·week-1 for five consecutive weeks. After the intervention, animals were sacrificed, removing the segments with and without intestinal transit. Diversion colitis was diagnosed by histological study, and its intensity was determined by a validated inflammatory scale. Tissue expression of MMP-9 was assessed byimmunohistochemistry, while total collagen was assessed by histochemistry. Tissue content of both was measuredby computerized morphometry. RESULTS Colon segments without intestinal transit had a higher degree of inflammation, which improved in animals treated with infliximab. Collagen content was always lower in those without intestinal transit. There was an increase in the collagen content in the colon without transit in animals treated with infliximab, primarily at a dose of 10 mg·kg-1·week-1. There was an increase in the content of MMP-9 in the colon without fecal transit, and a reduction was observed in animals treated with infliximab, regardless of the dose used. CONCLUSIONS Application of infliximab reduces inflammation, increases the total collagen content and decreases the content of MMP-9 in the colon without intestinal transit.
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Buanaim RP, Pereira JA, Campos FG, Kotze PG, Goto EFK, Mendonça RLS, Kanno DT, Martinez CAR. Effects of anti-TNF-α in experimental diversion colitis. Acta Cir Bras 2019; 34:e201901004. [PMID: 31851212 PMCID: PMC6912843 DOI: 10.1590/s0102-865020190100000004] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2019] [Accepted: 09/23/2019] [Indexed: 01/16/2023] Open
Abstract
Purpose: To evaluate the effects of infliximab on the inflammation of the colonic
mucosa devoid from fecal stream. Methods: Twenty-four rats were submitted to a Hartmann's procedure. They remained for
12 weeks with the fecal derivation to development of diversion colitis on
excluded colorectal stump. After this period, they were divided into 3
groups: one group received intervention with saline (2.0 mL / week), other
group infliximab at doses of 5 mg/kg/week and the other 10 mg/kg/week for
five consecutively weeks. Concluded the intervention period, the animals
were euthanized to remove colon segments with and without fecal stream.
Colitis was diagnosed by histological analysis and the degree of
inflammation by validated score. The neutrophilic infiltrate was evaluated
by tissue expression of myeloperoxidase identified by immunohistochemical.
The tissue content of myeloperoxidase was measured by computer-assisted
image analysis. Results: The inflammatory score was high in colonic segments without fecal stream. The
intervention with infliximab reduced the inflammatory score in excluded
colonic segments. The content of myeloperoxidase was reduced in colonic
segments of animals treated with infliximab mainly in high
concentrations. Conclusion: Intervention with infliximab reduced the inflammation and the neutrophil
infiltrate in colonic segments devoid of the fecal stream.
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Affiliation(s)
- Ronaldo Parisi Buanaim
- Fellow Master degree, Postgraduate Program in Health Science, Universidade São Francisco (USF). Assistant Professor, Faculty of Medicine, USF, Bragança Paulista-SP, Brazil. Technical procedures, acquisition and interpretation of data, manuscript preparation
| | - José Aires Pereira
- PhD, Assistant Professor, Division of Pathology, Faculty of Medicine, USF, Bragança Paulista-SP, Brazil. Histopathological examinations, acquisition and interpretation of data
| | - Fabio Guilherme Campos
- PhD, Associate Professor, Department of Gastroenterology, Faculty of Medicine, Universidade de São Paulo (USP), Brazil. Analysis and interpretation of data, critical revision
| | - Paulo Gustavo Kotze
- PhD, Assistant Professor, Colorectal Surgery Unit, Cajuru University Hospital, Universidade Católica do Paraná (PUCPR), Curitiba-PR, Brazil. Analysis and interpretation of data, English language revision, critical revision
| | - Eduardo Felipe Kim Goto
- Graduate student, Faculty of Medicine, USF, Bragança Paulista-SP, Brazil. Technical procedures, acquisition of data
| | - Roberta Laís Silva Mendonça
- Fellow Master degree, Postgraduate Program in Health of Sciences, USF, Bragança Paulista-SP, Brazil. Technical procedures, Histopathological examinations
| | - Danilo Toshio Kanno
- Fellow PhD degree, Postgraduate Program in Health Science, USF. Assistant Professor, Division of Surgery, Faculty of Medicine, USF, Bragança Paulista-SP, Brazil. Technical procedures, acquisition of data, manuscript preparation
| | - Carlos Augusto Real Martinez
- PhD, Associate Professor, Postgraduate Program in Health Sciences, USF, Bragança Paulista-SP, and Department of Surgery, Universidade Estadual de Campinas (UNICAMP), Campinas-SP, Brazil. Conception and design of the study, statistics analysis, manuscript preparation and writing, critical revision
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Holota Y, Dovbynchuk T, Kaji I, Vareniuk I, Dzyubenko N, Chervinska T, Zakordonets L, Stetska V, Ostapchenko L, Serhiychuk T, Tolstanova G. The long-term consequences of antibiotic therapy: Role of colonic short-chain fatty acids (SCFA) system and intestinal barrier integrity. PLoS One 2019; 14:e0220642. [PMID: 31437166 PMCID: PMC6705842 DOI: 10.1371/journal.pone.0220642] [Citation(s) in RCA: 63] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2019] [Accepted: 07/19/2019] [Indexed: 12/19/2022] Open
Abstract
Epidemiological studies revealed that antibiotics exposure increases a risk of inflammatory bowel diseases (IBD) development. It remained largely unknown how antibiotic-induced dysbiosis confers the risk for enhanced inflammatory response. The aim of the present study was to test the hypothesis that SCFAs, their receptors and transporters mediate the antibiotic long-term effects on the functional state of colonic mucosa and susceptibility to the experimental colitis. Male Wistar rats were treated daily for 14 days with antibiotic ceftriaxone (300 mg/kg, i.m.) or vehicle; euthanized by CO2 inhalation followed by cervical dislocation in 1, 14 or 56 days after antibiotic withdrawal. We found increased cecum weight and sustained changes in microbiota composition after ceftriaxone treatment with increased number of conditionally pathogenic enterobacteria, E. coli, Clostridium, Staphylococcus spp. and hemolytic bacteria even at 56 days after antibiotic withdrawal. The concentration of SCFAs was decreased after ceftriaxone withdrawal. We found decreased immunoreactivity of the FFA2, FFA3 receptors, SMCT1 and increased MCT1 & MCT4 transporters of SCFAs in colon mucosa. These changes evoked a significant shift in colonic mucosal homeostasis: the disturbance of oxidant-antioxidant balance; activation of redox-sensitive transcription factor HIF1α and ERK1/2 MAP kinase; increased colonic epithelial permeability and bacterial translocation to blood; morphological remodeling of the colonic tissue. Ceftriaxone pretreatment significantly reinforced inflammation during experimental colitis 56 days after ceftriaxone withdrawal, which was confirmed by increased histopathology of colitis, Goblet cell dysfunction, colonic dilatation and wall thickening, and increased serum levels of inflammatory cytokines (TNF-α and IL-10). Since the recognition of the importance of microbiota metabolic activity rather than their composition in the development of inflammatory disorders, e.g. IBD, the present study is the first report on the role of the SCFA system in the long lasting side effects of antibiotic treatment and its implication in IBD development.
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Affiliation(s)
- Yuliia Holota
- Taras Shevchenko National University of Kyiv, Kyiv, Ukraine
| | | | - Izumi Kaji
- UCLA/CURE West LA VA Medical Center, Los Angeles, California, United States of America
| | - Igor Vareniuk
- Taras Shevchenko National University of Kyiv, Kyiv, Ukraine
| | | | | | | | | | | | | | - Ganna Tolstanova
- Taras Shevchenko National University of Kyiv, Kyiv, Ukraine
- * E-mail: ,
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Greenhalgh K, Ramiro-Garcia J, Heinken A, Ullmann P, Bintener T, Pacheco MP, Baginska J, Shah P, Frachet A, Halder R, Fritz JV, Sauter T, Thiele I, Haan S, Letellier E, Wilmes P. Integrated In Vitro and In Silico Modeling Delineates the Molecular Effects of a Synbiotic Regimen on Colorectal-Cancer-Derived Cells. Cell Rep 2019; 27:1621-1632.e9. [DOI: 10.1016/j.celrep.2019.04.001] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2018] [Revised: 02/11/2019] [Accepted: 03/28/2019] [Indexed: 02/08/2023] Open
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Vermorken AJM, Andrès E, Cui Y. Bowel movement frequency, oxidative stress and disease prevention. Mol Clin Oncol 2016; 5:339-342. [PMID: 27703675 DOI: 10.3892/mco.2016.987] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2016] [Accepted: 06/27/2016] [Indexed: 12/13/2022] Open
Abstract
The significance of diet for disease prevention has long been recognised. Dietary recommendations have therefore been integrated in health promotion messages. Gastrointestinal functioning is essential for the digestion of nutrients. Oxidative stress has been observed in patients with constipation, as well as in those with colorectal cancer, cardiovascular disease and other chronic illnesses associated with constipation. The coexistence of colorectal neoplasia and coronary artery disease has been incriminated for exposure to common risk factors associated with increased oxidative stress. It was recently demonstrated that bowel movement frequency is inversely associated with cardiovascular mortality. The aim of the present study was to review the relevant literature in light of these findings. It was concluded that suboptimal functioning of the large bowel may contribute to oxidative stress and, therefore, to increased mortality. Bowel movement frequency may represent a simple quantifiable indicator of adequate colonic function and it is dependent on diet, exercise and other lifestyle factors, but also on individual characteristics, including colonic microbiota. Future health promotion actions may improve the prevention of a number of diseases by advocating lifestyle personalisation for assuring optimal intestinal functioning.
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Affiliation(s)
- Alphons J M Vermorken
- College of Life Sciences, Northwest University, Xi'an, Shaanxi 710069, P.R. China; National Engineering Research Center for Miniaturized Detection Systems, Xi'an, Shaanxi 710069, P.R. China
| | - Emmanuel Andrès
- Department of Internal Medicine, Diabetes and Metabolic Disorders, University Hospital of Strasbourg, 67091 Strasbourg, France
| | - Yali Cui
- College of Life Sciences, Northwest University, Xi'an, Shaanxi 710069, P.R. China; National Engineering Research Center for Miniaturized Detection Systems, Xi'an, Shaanxi 710069, P.R. China
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