scholarly journals 5-Aminolevulinic Acid as a Novel Therapeutic for Inflammatory Bowel Disease

Biomedicines ◽  
2021 ◽  
Vol 9 (5) ◽  
pp. 578
Author(s):  
Vipul Yadav ◽  
Yang Mai ◽  
Laura E. McCoubrey ◽  
Yasufumi Wada ◽  
Motoyasu Tomioka ◽  
...  
Keyword(s):  
Inflammatory Bowel Disease ◽  
Heme Oxygenase ◽  
Bowel Disease ◽  
Aminolevulinic Acid ◽  
Heme Oxygenase 1 ◽  
Aminosalicylic Acid ◽  
Colonic Tissue ◽  
Inflammatory Bowel ◽  
Anti Inflammatory

5-Aminolevulinic acid (5-ALA) is a naturally occurring nonprotein amino acid licensed as an optical imaging agent for the treatment of gliomas. In recent years, 5-ALA has been shown to possess anti-inflammatory and immunoregulatory properties through upregulation of heme oxygenase-1 via enhancement of porphyrin, indicating that it may be beneficial for the treatment of inflammatory conditions. This study systematically examines 5-ALA for use in inflammatory bowel disease (IBD). Firstly, the ex vivo colonic stability and permeability of 5-ALA was assessed using human and mouse fluid and tissue. Secondly, the in vivo efficacy of 5-ALA, in the presence of sodium ferrous citrate, was investigated via the oral and intracolonic route in an acute DSS colitis mouse model of IBD. Results showed that 5-ALA was stable in mouse and human colon fluid, as well as in colon tissue. 5-ALA showed more tissue restricted pharmacokinetics when exposed to human colonic tissue. In vivo dosing demonstrated significantly improved colonic inflammation, increased local heme oxygenase-1 levels, and decreased concentrations of proinflammatory cytokines TNF-α, IL-6, and IL-1β in both plasma and colonic tissue. These effects were superior to that measured concurrently with established anti-inflammatory treatments, ciclosporin and 5-aminosalicylic acid (mesalazine). As such, 5-ALA represents a promising addition to the IBD armamentarium, with potential for targeted colonic delivery.

Preparation, characterization, and in vivo evaluation of anti-inflammatory activities of selenium nanoparticles synthesized by Kluyveromyces lactis GG799

2021 ◽  
Author(s):  
Xiao fan Song ◽  
Lei Qiao ◽  
Shuqi Yan ◽  
Yue Chen ◽  
Xina Dou ◽  
...  
Keyword(s):  
Inflammatory Bowel Disease ◽  
Bowel Disease ◽  
Kluyveromyces Lactis ◽  
Selenium Nanoparticles ◽  
Human Diseases ◽  
In Vivo Evaluation ◽  
Inflammatory Bowel ◽  
Anti Inflammatory

Selenium (Se) as an essential micronutrient that has implications in human diseases, including inflammatory bowel disease (IBD), especially with respect to Se deficiencies. Recently, selenium nanoparticles (SeNPs) have attracted significant...

scholarly journals Dihydroartemisinin Regulates the Th/Treg Balance by Inducing Activated CD4+ T cell Apoptosis via Heme Oxygenase-1 Induction in Mouse Models of Inflammatory Bowel Disease

Molecules ◽  
2019 ◽  
Vol 24 (13) ◽  
pp. 2475 ◽  
Author(s):  
Si Chao Yan ◽  
Ya Jie Wang ◽  
Yu Jie Li ◽  
Wei Yan Cai ◽  
Xiao Gang Weng ◽  
...  
Keyword(s):  
Inflammatory Bowel Disease ◽  
T Cell ◽  
Mouse Models ◽  
Heme Oxygenase ◽  
Bowel Disease ◽  
Cell Apoptosis ◽  
Cd4 T Cell ◽  
Heme Oxygenase 1 ◽  
T Cell Apoptosis ◽  
Inflammatory Bowel

Dihydroartemisinin (DHA) is a derivative of the herb Artemisia annua L. that has prominent immunomodulatory activity; however, its underlying mechanism remains elusive. Inflammatory bowel disease (IBD) is an idiopathic inflammatory condition characterized as an autoimmune disorder that includes dysfunctions in the T helper (Th)/T regulatory cell (Treg) balance, which normally plays pivotal roles in immune homeostasis. The aim of this study was to explore the potential of DHA to ameliorate IBD by restoring the Th/Treg cell balance. To this end, we established mouse models of colitis induced by oxazolone (OXA) and 2,4,6-trinitro-benzene sulfonic acid (TNBS). We then treated mice with DHA at 4, 8, or 16 mg/kg/day. DHA treatment ameliorated colitis signs and reduced lymphocyte infiltration and tissue fibrosis. Moreover, DHA decreased the numbers of Th1 and Th17 cells and Th9 and Th22 cells in TNBS- or OXA-induced colitis, respectively, and increased Tregs in both models. DHA (0.8 mg/mL) also inhibited activated CD4+ T lymphocytes, which was accompanied by apoptosis induction. Moreover, it promoted heme oxygenase-1 (HO-1) production in vitro and in vivo, concomitant with CD4+ T cell apoptosis and restoration of the Th/Treg balance, and these effects were blocked by treatment with the HO-1 inhibitor Sn-protoporphyrin IX. Overall, these results suggest that DHA is a novel and valuable candidate for IBD therapy or Th/Treg immunoregulation.

New probiotic strains for inflammatory bowel disease management identified by combining in vitro and in vivo approaches

2018 ◽  
Vol 9 (2) ◽  
pp. 317-331 ◽  
Author(s):  
J. Alard ◽  
V. Peucelle ◽  
D. Boutillier ◽  
J. Breton ◽  
S. Kuylle ◽  
...  
Keyword(s):  
Inflammatory Bowel Disease ◽  
Bowel Disease ◽  
Inflammatory Diseases ◽  
Chronic Colitis ◽  
Acute Colitis ◽  
Probiotic Strains ◽  
Inflammatory Bowel ◽  
Anti Inflammatory

Alterations in the gut microbiota composition play a key role in the development of chronic diseases such as inflammatory bowel disease (IBD). The potential use of probiotics therefore gained attention, although outcomes were sometimes conflicting and results largely strain-dependent. The present study aimed to identify new probiotic strains that have a high potential for the management of this type of pathologies. Strains were selected from a large collection by combining different in vitro and in vivo approaches, addressing both anti-inflammatory potential and ability to improve the gut barrier function. We identified six strains with an interesting anti-inflammatory profile on peripheral blood mononuclear cells and with the ability to restore the gut barrier using a gut permeability model based on Caco-2 cells sensitized with hydrogen peroxide. The in vivo evaluation in two 2,4,6-trinitrobenzene sulfonic acid-induced murine models of colitis highlighted that some of the strains exhibited beneficial activities against acute colitis while others improved chronic colitis. Bifidobacterium bifidum PI22, the strain that exhibited the most protective capacities against acute colitis was only slightly efficacious against chronic colitis, while Bifidobacterium lactis LA804 which was less efficacious in the acute model was the most protective against chronic colitis. Lactobacillus helveticus PI5 was not anti-inflammatory in vitro but the best in strengthening the epithelial barrier and as such able to significantly dampen murine acute colitis. Interestingly, Lactobacillus salivarius LA307 protected mice significantly against both types of colitis. This work provides crucial clues for selecting the best strains for more efficacious therapeutic approaches in the management of chronic inflammatory diseases. The strategy employed allowed us to identify four strains with different characteristics and a high potential for the management of inflammatory diseases, such as IBD.

scholarly journals Anti-Inflammatory Effects of Urocanic Acid Derivatives in Models Ex Vivo and In Vivo of Inflammatory Bowel Disease

2012 ◽  
Vol 2012 ◽  
pp. 1-8 ◽  
Author(s):  
Arthur Kammeyer ◽  
Charlotte P. Peters ◽  
Sybren L. Meijer ◽  
Anje A. te Velde
Keyword(s):  
Inflammatory Bowel Disease ◽  
Bowel Disease ◽  
Ex Vivo ◽  
Urocanic Acid ◽  
Ethyl Esters ◽  
Fine Tuning ◽  
Additional Indication ◽  
Inflammatory Bowel ◽  
Anti Inflammatory

Urocanic acid (UCA) derivatives were tested for their anti-inflammatory activity in inflammatory bowel disease (IBD) in two models: ex vivo and an experimental mouse model. Ex vivo: inflamed colonic tissue was incubated in culture medium with or without the UCA derivatives. Biopsies, incubated with UCA derivatives, produced lower levels of proinflammatory cytokines IL-6 and IL-8 as compared to control biopsies. The same compounds also showed increased levels of IL-10, providing an additional indication for anti-inflammatory properties. In vivo: a combination of two imidazoles and a combination of two of their ethyl esters were administered to mice while colitis was induced by oral administration of dextran sodium sulfate (DSS). Some parameters did not show conclusive effects, but the imidazoles and their ethyl esters reduced the area of inflammation and the number of infiltrating neutrophils. Fibrosis and the sum of all histological aspects were reduced by the imidazoles, whereas the ethyl esters reduced the colon weight to length ratio. These results suggest that the UCA derivatives have anti-inflammatory effect on IBD. In addition, fine tuning of the ex vivo model may provide an elegant way to predict anti-inflammatory effects of potential drugs in humans, which may decrease the need for animal experiments.

scholarly journals Intestinal Anti-Inflammatory Effect of a Peptide Derived from Gastrointestinal Digestion of Buffalo (Bubalus bubalis) Mozzarella Cheese

Nutrients ◽  
2019 ◽  
Vol 11 (3) ◽  
pp. 610 ◽  
Author(s):  
Gian Tenore ◽  
Ester Pagano ◽  
Stefania Lama ◽  
Daniela Vanacore ◽  
Salvatore Di Maro ◽  
...  
Keyword(s):  
Inflammatory Bowel Disease ◽  
Bowel Disease ◽  
Therapeutic Potential ◽  
Intestinal Barrier ◽  
Bubalus Bubalis ◽  
Epithelial Junctions ◽  
Inflammatory Bowel ◽  
Anti Inflammatory

Under physiological conditions, the small intestine represents a barrier against harmful antigens and pathogens. Maintaining of the intestinal barrier depends largely on cell–cell interactions (adherent-junctions) and cell–matrix interactions (tight-junctions). Inflammatory bowel disease is characterized by chronic inflammation, which induces a destructuring of the architecture junctional epithelial proteins with consequent rupture of the intestinal barrier. Recently, a peptide identified by Bubalus bubalis milk-derived products (MBCP) has been able to reduce oxidative stress in intestinal epithelial cells and erythrocytes. Our aim was to evaluate the therapeutic potential of MBCP in inflammatory bowel disease (IBD). We studied the effect of MBCP on (i) inflamed human intestinal Caco2 cells and (ii) dinitrobenzene sulfonic acid (DNBS) mice model of colitis. We have shown that MBCP, at non-cytotoxic concentrations, both in vitro and in vivo induced the adherent epithelial junctions organization, modulated the nuclear factor (NF)-κB pathway and reduced the intestinal permeability. Furthermore, the MBCP reverted the atropine and tubocurarine injury effects on adherent-junctions. The data obtained showed that MBCP possesses anti-inflammatory effects both in vitro and in vivo. These results could have an important impact on the therapeutic potential of MBCP in helping to restore the intestinal epithelium integrity damaged by inflammation.

scholarly journals Resveratrol and inflammatory bowel disease: the evidence so far

2017 ◽  
Vol 31 (1) ◽  
pp. 85-97 ◽  
Author(s):  
Sandra Nunes ◽  
Francesca Danesi ◽  
Daniele Del Rio ◽  
Paula Silva
Keyword(s):  
Inflammatory Bowel Disease ◽  
Intestinal Mucosa ◽  
Bowel Disease ◽  
Intestinal Inflammation ◽  
Human Subjects ◽  
Intestinal Immunity ◽  
Inflammatory Bowel ◽  
Anti Inflammatory

AbstractDespite the fact that inflammatory bowel disease (IBD) has still no recognised therapy, treatments which have proven at least mildly successful in improving IBD symptoms include anti-inflammatory drugs and monoclonal antibodies targeting pro-inflammatory cytokines. Resveratrol, a natural (poly)phenol found in grapes, red wine, grape juice and several species of berries, has been shown to prevent and ameliorate intestinal inflammation. Here, we discuss the role of resveratrol in the improvement of inflammatory disorders involving the intestinal mucosa. The present review covers three specific aspects of resveratrol in the framework of inflammation: (i) its content in food; (ii) its intestinal absorption and metabolism; and (iii) its anti-inflammatory effects in the intestinal mucosa in vitro and in the very few in vivo studies present to date. Actually, if several studies have shown that resveratrol may down-regulate mediators of intestinal immunity in rodent models, only two groups have performed intervention studies in human subjects using resveratrol as an agent to improve IBD conditions. The effects of resveratrol should be further investigated by conducting well-designed clinical trials, also taking into account different formulations for the delivery of the bioactive compound.

Sign in / Sign up

Export Citation Format

Share Document