scholarly journals Histamine Induces Bovine Rumen Epithelial Cell Inflammatory Response via NF-κB Pathway

2017 ◽  
Vol 42 (3) ◽  
pp. 1109-1119 ◽  
Author(s):  
Xudong Sun ◽  
Xue Yuan ◽  
Liang Chen ◽  
Tingting Wang ◽  
Zhe Wang ◽  
...  
Keyword(s):  
Epithelial Cells ◽  
Inflammatory Response ◽  
Inflammatory Cytokines ◽  
Transcriptional Activity ◽  
Interleukin 1 ◽  
Common Disease ◽  
Pyrrolidine Dithiocarbamate ◽  
Bovine Rumen ◽  
Rumen Epithelial Cells ◽  
Cells Cultured

Background/Aims: Subacute ruminal acidosis (SARA) is a common disease in high-producing lactating cows. Rumenitis is the initial insult of SARA and is associated with the high concentrations of histamine produced in the rumen of dairy cows during SARA. However, the exact mechanism remains unclear. The objective of the current study is to investigate whether histamine induces inflammation of rumen epithelial cells and the underlying mechanism of this process. Methods: Bovine rumen epithelial cells were cultured and treated with different concentrations of histamine and pyrrolidine dithiocarbamate (PDTC, an NF-κB inhibitor) cultured in different pH medium (pH 7.2 or 5.5). qRT-PCR, Western-blotting, ELISA and immunocytofluorescence were used to evaluate whether histamine activated the NF-κB pathway and inflammatory cytokines. Results: The results showed that histamine significantly increased the activity of IKK β and the phosphorylation levels of IκB α, as well as upregulated the mRNA and protein expression levels of NF-κB p65 in the rumen epithelial cells cultured in neutral (pH=7.2) and acidic (pH=5.5) medium. Furthermore, histamine treatment also significantly increased the transcriptional activity of NF-κB p65. High expression and transcriptional activity of NF-κB p65 significantly increased the mRNA expressions and concentrations of inflammatory cytokines, tumor necrosis factor alpha (TNF-α), interleukin 6 (IL-6) and interleukin 1 beta (IL-1β), thereby inducing the inflammatory response in bovine rumen epithelial cells. However, inhibition of NF-κB p65 by PDTC significantly decreased the expressions and concentrations of the inflammatory cytokines induced by histamine in the rumen epithelial cells cultured in the neutral and acidic medium. Conclusion: The present data indicate that histamine induces the inflammatory response of bovine rumen epithelial cells through the NF-κB pathway.

scholarly journals Effect of Lipopolysaccharides (LPS) and Lipoteichoic acid (LTA) on the Inflammatory Response in Rumen Epithelial Cells (REC) and the Impact of LPS on Claw Explants

Animals ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 2058
Author(s):  
Nicole Reisinger ◽  
Dominik Wendner ◽  
Nora Schauerhuber ◽  
Elisabeth Mayer
Keyword(s):  
Epithelial Cells ◽  
Inflammatory Response ◽  
Structural Integrity ◽  
Animal Health ◽  
Lipoteichoic Acid ◽  
Local Inflammatory Response ◽  
Tissue Integrity ◽  
Separation Force ◽  
The Impact ◽  
Rumen Epithelial Cells

Endotoxins play a crucial role in ruminant health due to their deleterious effects on animal health. The study aimed to evaluate whether LPS and LTA can induce an inflammatory response in rumen epithelial cells. For this purpose, epithelial cells isolated from rumen tissue (RECs) were stimulated with LPS and LTA for 1, 2, 4, and 24 h. Thereafter, the expression of selected genes of the LPS and LTA pathway and inflammatory response were evaluated. Furthermore, it was assessed whether LPS affects inflammatory response and structural integrity of claw explants. Therefore, claw explants were incubated with LPS for 4 h to assess the expression of selected genes and for 24 h to evaluate tissue integrity via separation force. LPS strongly affected the expression of genes related to inflammation (NFkB, TNF-α, IL1B, IL6, CXCL8, MMP9) in RECs. LTA induced a delayed and weaker inflammatory response than LPS. In claw explants, LPS affected tissue integrity, as there was a concentration-dependent decrease of separation force. Incubation time had a strong effect on inflammatory genes in claw explants. Our data suggest that endotoxins can induce a local inflammatory response in the rumen epithelium. Furthermore, translocation of LPS might negatively impact claw health.

Berberine inhibits lipopolysaccharide-induced expression of inflammatory cytokines by suppressing TLR4-mediated NF-ĸB and MAPK signaling pathways in rumen epithelial cells of Holstein calves

2019 ◽  
Vol 86 (2) ◽  
pp. 171-176 ◽  
Author(s):  
Chenxu Zhao ◽  
Yazhou Wang ◽  
Xue Yuan ◽  
Guoquan Sun ◽  
Bingyu Shen ◽  
...  
Keyword(s):  
Epithelial Cells ◽  
Signaling Pathways ◽  
Inflammatory Cytokines ◽  
Molecular Mechanisms ◽  
Mapk Signaling ◽  
Dependent Manner ◽  
Inflammatory Drug ◽  
Anti Inflammatory ◽  
Mapk Signaling Pathways ◽  
Rumen Epithelial Cells

AbstractSubacute ruminal acidosis (SARA) can increase the level of inflammation and induce rumenitis in dairy cows. Berberine (BBR) is the major active component of Rhizoma Coptidis, which is a type of Chinese anti-inflammatory drug for gastrointestinal diseases. The purpose of this study was to investigate the anti-inflammatory effects of BBR on lipopolysaccharide (LPS)-stimulated rumen epithelial cells (REC) and the underlying molecular mechanisms. REC were cultured and stimulated with LPS in the presence or absence of different concentrations of BBR. The results showed that cell viability was not affected by BBR. Moreover, BBR markedly decreased the concentrations and mRNA expression of pro-inflammatory cytokines, including tumor necrosis factor-α, interleukin-1β, and interleukin-6 in the LPS-treated REC in a dose-dependent manner. Importantly, Western blotting analysis showed that BBR significantly suppressed the protein expression of toll-like receptor 4 (TLR4) and myeloid differentiation primary response protein (MyD88) and the phosphorylation of nuclear factor-κB (NF-κB), inhibitory kappa B (IκBα), p38 mitogen-activated protein kinase (MAPK), and c-Jun N-terminal kinase (JNK) in LPS-treated REC. Furthermore, the results of immunocytofluorescence showed that BBR significantly inhibited the nuclear translocation of NF-κB p65 induced by LPS treatment. In conclusion, the protective effects of BBR on LPS-induced inflammatory responses in REC may be due to its ability to suppress the TLR4-mediated NF-κB and MAPK signaling pathways. These findings suggest that BBR can be used as an anti-inflammatory drug to treat inflammation induced by SARA.

scholarly journals The Toll Interleukin-1 Receptor (IL-1R) 8/Single Ig Domain IL-1R-Related Molecule Modulates the Renal Response to Bacterial Infection

2012 ◽  
Vol 80 (11) ◽  
pp. 3812-3820 ◽  
Author(s):  
Jaklien C. Leemans ◽  
Loes M. Butter ◽  
Gwendoline J. D. Teske ◽  
Ingrid Stroo ◽  
Wilco P. Pulskens ◽  
...  
Keyword(s):  
Epithelial Cells ◽  
Inflammatory Response ◽  
Host Response ◽  
Interleukin 1 ◽  
Negative Regulator ◽  
Tubular Epithelial Cells ◽  
Content Type ◽  
Related Molecule ◽  
E Coli ◽  
Ig Domain

ABSTRACTOur immune system has to constantly strike a balance between activation and inhibition of an inflammatory response to combat invading pathogens and avoid inflammation-induced collateral tissue damage. Toll interleukin-1 receptor 8 (IL-1R-8)/single Ig domain IL-1R-related molecule (TIR8/SIGIRR) is an inhibitor of Toll-like receptor (TLR)/IL-1R signaling, which is predominantly expressed in the kidney. The biological role of renal TIR8 during infection is, however, unknown. We therefore evaluated renal TIR8 expression duringEscherichia colipyelonephritis and explored its role in host defense using TIR8−/−versus TIR8+/+mice. We found that TIR8 protein is abundantly present in the majority of cortical tubular epithelial cells. Pyelonephritis resulted in a significant downregulation of TIR8 mRNA in kidneys of TIR8+/+mice. TIR8 inhibited an effective host response againstE. coli, as indicated by diminished renal bacterial outgrowth and dysfunction in TIR8−/−mice. This correlated with increased amounts of circulating and intrarenal neutrophils at the early phase of infection. TIR8−/−tubular epithelial cells had increased cytokine/chemokine production when stimulated with lipopolysaccharide (LPS) or heat-killedE. coli, suggesting that TIR8 played an anti-inflammatory role during pathogen stimulation by inhibiting LPS signaling. These data suggest that TIR8 is an important negative regulator of an LPS-mediated inflammatory response in tubular epithelial cells and dampens an effective antibacterial host response during pyelonephritis caused by uropathogenicE. coli.

scholarly journals SARS-CoV-2 spike protein induces inflammation via TLR2-dependent activation of the NF-κB pathway

2021 ◽  
Author(s):  
Shahanshah Khan ◽  
Mahnoush S. Shafiei ◽  
Christopher Longoria ◽  
John Schoggins ◽  
Rashmin C. Savani ◽  
...  
Keyword(s):  
Epithelial Cells ◽  
Inflammatory Response ◽  
Inflammatory Cytokines ◽  
Lung Epithelial Cells ◽  
Dependent Manner ◽  
S Protein ◽  
Cytokines And Chemokines ◽  
Lung Epithelial ◽  
Mouse Macrophages ◽  
Human And Mouse

Pathogenesis of COVID-19 is associated with a hyperinflammatory response; however, the precise mechanism of SARS-CoV-2-induced inflammation is poorly understood. Here we investigated direct inflammatory functions of major structural proteins of SARS-CoV-2. We observed that spike (S) protein potently induces inflammatory cytokines and chemokines including IL-6, IL-1b, TNFa, CXCL1, CXCL2, and CCL2, but not IFNs in human and mouse macrophages. No such inflammatory response was observed in response to membrane (M), envelope (E), and neucleocapsid (N) proteins. When stimulated with extracellular S protein, human lung epithelial cells A549 also produce inflammatory cytokines and chemokines. Interestingly, epithelial cells expressing S protein intracellularly are non-inflammatory, but elicit an inflammatory response in macrophages when co-cultured. Biochemical studies revealed that S protein triggers inflammation via activation of the NF-kB pathway in a MyD88-dependent manner. Further, such an activation of the NF-kB pathway is abrogated in Tlr2-deficient macrophages. Consistently, administration of S protein induces IL-6, TNF-a, and IL-1b in wild-type, but not Tlr2-deficient mice. Together these data reveal a mechanism for the cytokine storm during SARS-CoV-2 infection and suggest that TLR2 could be a potential therapeutic target for COVID-19.

scholarly journals The effect of early resuscitation and ulinastatin on the severe acute pancreatitis in obese patients

2020 ◽  
Vol 24 (3) ◽  
pp. 449-454
Author(s):  
O. Tkachuk ◽  
A. Kebkalo
Keyword(s):  
Acute Pancreatitis ◽  
Inflammatory Response ◽  
Inflammatory Cytokines ◽  
Severe Acute Pancreatitis ◽  
Interleukin 1 ◽  
Obese Patients ◽  
Ringer’S Lactate ◽  
Bed Days ◽  
Experimental Group ◽  
Pro Inflammatory Cytokines

Annotation. Obesity is a problem of the third millennium. It is known that obesity is a major factor in the development of various diseases, including acute pancreatitis. Obesity itself is a pro-inflammatory condition with elevated levels of the following pro-inflammatory cytokines: tumor necrosis factor (TNF-a), interleukin (IL) IL-10, IL-6, IL-1b. Acute pancreatitis is also a disease based on the pathogenesis of the cytokine reaction and autolysis. Thus, against the background of the already formed inflammatory response, the inflammatory response intensifies and increases, and the level of pro-inflammatory cytokines reaches critical values. The purpose is to study the effect of ulinastatin on the severe acute pancreatitis in obese patients. To refute or confirm the hypothesis among patients with severe acute pancreatitis and obesity (BMI was 37.48±2.19 kg / m2), two groups were randomized. In the first group (experimental) of 18 patients, a step-up approach was performed. In the second group (control), the total number of which was 18 patients, a standard treatment algorithm was performed. The experimental group suggested the use of early resuscitation with Ringer’s lactate and ulinastatin in the first 5 days of the disease. The drug was administered at a dose of 200,000 IU by intravenous infusion for 1 hour 3 times a day for 5 days. In the control group, resuscitation was performed with 0.9% sodium chloride solution without the use of ulinastatin. Hypothesis was tested by monitoring procalciton and C-reactive protein, interleukin-1 and interleukin-6 over a period of 24 hours, 48 hours, 10 days, 15 days, 30 days, 45 and 60 days. The choice of procalcitonin and CRP was made by calculating the relative risk, as the level of CRP> 200mg / l indicated the preservation of severe disease (RR=2.07; 95% CI=1.65-2.59; p=0.01), and an increase in procalcitonin> 1.8 ng / mg was a predictor of infection (RR=2.27; 95% CI=1.083-4.769; p=0.02). The use of ulinastatin during the first 5 days in the experimental group reduced the level of interleukin-1 from 23.64±4.13 to 8.71±2.49 pg / ml (p=0.001; α=0.05), interleukin- 6 – from 29.72±4.27 to 12.43±2.36 pg / ml (p=0.001; α=0.05). The use of resuscitation with Ringer's lactate solution in combination with ulinastatin for 5 days helped to reduce the level of procalciton in 1.8 times (2.89±0.88 compared with 1.8±0.23 ng / mg; p=0.001; α=0.05). The level of CRP during the period of ulinastatin decreased by 41.68 (267.28±114.11 compared with 225.6±84.9 mg / l; p=0.01; α=0.05). In-hospital mortality was significantly lower in the ulinastatin group (16% vs. 69.6%; p=0.0003; α=0.05). Significantly lower proportion of patients (24% compared to 73.9%; p=0.0005; α=0.05) with multiple organ failure among the study group. Organ dysfunction was acquired on day 5 among patients taking ulinastatin. The length of hospital stay was 49.7±4.2 bed-days, while in the comparison group – 56.67±5.84 bed-days (p=0.01; α=0.05). Thus, the use of Ringer-lactate early resuscitation in combination with ulinastatin has improved the treatment of severe acute pancreatitis in obese patients.

scholarly journals MicroRNA Bta-miR-24-3p Suppressed Galectin-9 Expression through TLR4/NF-ĸB Signaling Pathway in LPS-Stimulated Bovine Endometrial Epithelial Cells

Cells ◽  
2021 ◽  
Vol 10 (12) ◽  
pp. 3299
Author(s):  
Ayodele Olaolu Oladejo ◽  
Yajuan Li ◽  
Wenxiang Shen ◽  
Bereket Habte Imam ◽  
Xiaohu Wu ◽  
...  
Keyword(s):  
Polymerase Chain Reaction ◽  
Epithelial Cells ◽  
Inflammatory Response ◽  
Real Time ◽  
Inflammatory Cytokines ◽  
Luciferase Reporter ◽  
Enzyme Linked Immunosorbent Assay ◽  
Chain Reaction ◽  
Polymerase Chain ◽  
Endometrial Epithelial Cells

Endometritis is a major infectious disease affecting dairy development. MicroRNAs are recognized as critical regulators of the innate immune response. However, the role and mechanism of Bta-miR-24-3p in the development of endometritis are still unclear. This study aimed to investigate the effect of Bta-miR-24-3p on the inflammatory response triggered by lipopolysaccharide (LPS) and to clarify the possible mechanism. LPS-treated bovine endometrial epithelial cells (BEECs) were cultured to investigate the role of Bta-miR-24-3p. The expression levels of Bta-miR-24-3p were downregulated, and galectin-9 (LGALS9) were measured by quantitative real-time polymerase chain reaction. The LPS-induced inflammatory response was assessed by the elevated secretion of inflammatory cytokines measured by using enzyme-linked immunosorbent assay and quantitative real-time polymerase chain reaction. Activation of nuclear factor-κB (NF-κB) and TLR4 pathway was assessed by Western blot. The interaction between Bta-miR-24-3p and LGALS9 was validated by bioinformatics analysis and a luciferase reporter assay. LPS-induction in BEECs with Bta-miR-24-3p was overexpressed leads inhibition of pro-inflammatory cytokines, LGALS9 expression, and TLR4/NF-ĸB pathway deactivation. Knockdown of LGALS9 inhibited the LPS-induced inflammatory response in BEECs. LGALS9 was validated as a target of Bta-miR-24-3p. Cloned overexpression of LGALS9 failed to alter the effect of Bta-miR-24-3p on the inflammatory response in BEECs. Overall, Bta-miR-24-3p attenuated the LPS-induced inflammatory response via targeting LGALS9. The immunotherapeutic stabilisation of Bta-miR-24-3p could give a therapeutic option for endometritis and other disorders commonly associated with endometritis, suggesting a novel avenue for endometritis treatment.

scholarly journals Intestinal Bacteroides Modulates Systemic Inflammation and the Microbial Ecology in a Mouse Model of CF: Evidence for Propionate and other Short Chain Fatty Acids Reducing Systemic Inflammatory Cytokines

2022 ◽  
Author(s):  
Courtney Price ◽  
Rebecca Valls ◽  
Alexis Ramsey ◽  
Nicole Loeven ◽  
Jane Jones ◽  
...  
Keyword(s):  
Epithelial Cells ◽  
Inflammatory Response ◽  
Inflammatory Cytokines ◽  
Relative Abundance ◽  
Intestinal Epithelial Cells ◽  
Short Chain Fatty Acids ◽  
Short Chain ◽  
Intestinal Microbiome ◽  
Dependent Manner ◽  
Intestinal Epithelial

Persons with cystic fibrosis, starting in early life, have intestinal microbiome dysbiosis characterized in part by a decreased relative abundance of the genus Bacteroides. Bacteroides is a major producer of the intestinal short chain fatty acid (SCFA) propionate. We demonstrate here that CFTR-/- Caco-2 intestinal epithelial cells are responsive to the anti-inflammatory effects of propionate. Furthermore, Bacteroides isolates inhibit the IL-1β-induced inflammatory response of CFTR-/- Caco-2 intestinal epithelial cells and do so in a propionate-dependent manner. Bacteroides isolates also produce low levels of butyrate; this SCFA is positively correlated with inhibition of the inflammatory response. Finally, the introduction of Bacteroides-supplemented stool from infants with CF into the gut of CftrF508del mice results in an increase in propionate in the stool as well as the reduction in several systemic pro-inflammatory cytokines. Bacteroides supplementation also reduced the fecal relative abundance of E. coli, indicating a potential interaction between these two microbes, consistent with previous clinical studies. Together, our data indicate the important role of Bacteroides and Bacteroides-derived propionate in the context of the developing microbiome in infants and children with CF, which could help explain the observed gut-lung axis in CF.

scholarly journals Secretory Aspartyl Proteinases Cause Vaginitis and Can Mediate Vaginitis Caused by Candida albicans in Mice

mBio ◽  
2015 ◽  
Vol 6 (3) ◽  
Author(s):  
Eva Pericolini ◽  
Elena Gabrielli ◽  
Mario Amacker ◽  
Lydia Kasper ◽  
Elena Roselletti ◽  
...  
Keyword(s):  
Candida Albicans ◽  
Epithelial Cells ◽  
Inflammatory Response ◽  
Common Disease ◽  
Content Type ◽  
Neutrophil Influx ◽  
Caspase 1 ◽  
Vaginal Epithelial Cells ◽  
Pepstatin A ◽  
Aspartyl Proteinases

ABSTRACTVaginal inflammation (vaginitis) is the most common disease caused by the human-pathogenic fungusCandida albicans. Secretory aspartyl proteinases (Sap) are major virulence traits ofC. albicansthat have been suggested to play a role in vaginitis. To dissect the mechanisms by which Sap play this role, Sap2, a dominantly expressed member of the Sap family and a putative constituent of an anti-Candidavaccine, was used. Injection of full-length Sap2 into the mouse vagina caused local neutrophil influx and accumulation of the inflammasome-dependent interleukin-1β (IL-1β) but not of inflammasome-independent tumor necrosis factor alpha. Sap2 could be replaced by other Sap, while no inflammation was induced by the vaccine antigen, the N-terminal-truncated, enzymatically inactive tSap2. Anti-Sap2 antibodies, in particular Fab from a human combinatorial antibody library, inhibited or abolished the inflammatory response, provided the antibodies were able, like the Sap inhibitor Pepstatin A, to inhibit Sap enzyme activity. The same antibodies and Pepstatin A also inhibited neutrophil influx and cytokine production stimulated byC. albicansintravaginal injection, and a mutant strain lackingSAP1,SAP2, andSAP3was unable to cause vaginal inflammation. Sap2 induced expression of activated caspase-1 in murine and human vaginal epithelial cells. Caspase-1 inhibition downregulated IL-1β and IL-18 production by vaginal epithelial cells, and blockade of the IL-1β receptor strongly reduced neutrophil influx. Overall, the data suggest that some Sap, particularly Sap2, are proinflammatory proteinsin vivoand can mediate the inflammasome-dependent, acute inflammatory response of vaginal epithelial cells toC. albicans. These findings support the notion that vaccine-induced or passively administered anti-Sap antibodies could contribute to control vaginitis.IMPORTANCECandidal vaginitis is an acute inflammatory disease that affects many women of fertile age, with no definitive cure and, in its recurrent forms, causing true devastation of quality of life. Unraveling the fungal factors causing inflammation is important to be able to devise novel tools to fight the disease. In an experimental murine model, we have discovered that aspartyl proteinases, particularly Sap2, may cause the same inflammatory signs of vaginitis caused by the fungus and that anti-Sap antibodies and the protease inhibitor Pepstatin A almost equally inhibit Sap- andC. albicans-induced inflammation. Sap-induced vaginitis is an early event during vaginal infection, is uncoupled from fungal growth, and requires Sap and caspase-1 enzymatic activities to occur, suggesting that Sap or products of Sap activity activate an inflammasome sensor of epithelial cells. Our data support the notion that anti-Sap antibodies could help control the essence of candidal vaginitis, i.e., the inflammatory response.

scholarly journals The Dynamic Changes of Gut Microbiota in Muc2 Deficient Mice

2018 ◽  
Vol 19 (9) ◽  
pp. 2809 ◽  
Author(s):  
Minna Wu ◽  
Yaqi Wu ◽  
Jianmin Li ◽  
Yonghua Bao ◽  
Yongchen Guo ◽  
...  
Keyword(s):  
Epithelial Cells ◽  
Gut Microbiota ◽  
Inflammatory Cytokines ◽  
High Throughput Sequencing ◽  
Interleukin 1 ◽  
Colorectal Carcinogenesis ◽  
Dynamic Changes ◽  
Intestinal Pathology ◽  
Factor Α ◽  
I Kappa B Kinase

Gut dysbiosis is associated with colitis-associated colorectal carcinogenesis, and the genetic deficiency of the Muc2 gene causes spontaneous development of colitis and colorectal cancer. Whether there are changes of gut microbiota and a linkage between the changes of microbiota and intestinal pathology in Muc2−/− mice are unclear. Muc2−/− and Muc2+/+ mice were generated by backcrossing from Muc2+/− mice, and the fecal samples were collected at different dates (48th, 98th, 118th, 138th, and 178th day). Gut microbiota were analyzed by high-throughput sequencing with the universal 16S rRNA primers (V3–V5 region). All mice were sacrificed at day 178 to collect colonic tissue and epithelial cells for the analysis of histopathology and inflammatory cytokines. On the 178th day, Muc2−/− mice developed colorectal chronic colitis, hyperplasia, adenomas and adenocarcinomas, and inflammatory cytokines (e.g., cyclooxygenase 2 (COX-2), interleukin 6 (IL-6), tumor necrosis factor-α (TNF-α), interleukin 1 β (IL-1β), i-kappa-B-kinase β (IKKβ)) were significantly increased in colonic epithelial cells of Muc2−/− mice. In general, structural segregation of gut microbiota was observed throughout the experimental time points between the Muc2−/− and Muc2+/+ mice. Impressively, in Muc2−/− mice, Alpha diversities reflected by Shannon and Chao indexes were higher, the phylum of Firmicutes was enriched and Bacteroidetes was decreased, and Desulfovibrio, Escherichia, Akkermansia, Turicibacter, and Erysipelotrichaceae were significantly increased, but Lactobacilli and Lachnospiraceae were significantly decreased. Moreover, the abundance of Ruminococcaceae and butyrate-producing bacteria was significantly higher in the Muc2−/− mice. There were significant differences of gut microbiota between Muc2−/− and Muc2+/+ mice. The dynamic changes of microbiota might contribute to the development of colitis and colitis-associated colorectal carcinogenesis. Therefore, this study revealed specific functional bacteria in the development of colitis and colitis-associated colorectal carcinogenesis, which will benefit the development of preventive and therapeutic strategies for chronic inflammation and its malignant transformation.

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