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CYP24A1 Involvement in Inflammatory Factor Regulation Occurs via the Wnt Signaling Pathway
ConclusionTaken together, this study suggests that inflammatory factors may increase CYP24A1 expressionvia NF- κB pathway activation, which in turn stimulates Wnt signaling.
Source: Journal of Huazhong University of Science and Technology -- Medical Sciences -- - October 17, 2022 Category: Research Source Type: research

Oligonucleotides —A Novel Promising Therapeutic Option for IBD
Conclusions In this review, we focused on recent and past approaches to test the therapeutic efficacy of oligonucleotide based therapies in IBD. The combining mechanistic mode of oligonucleotide based therapeutics is a targeted action on specific pro-inflammatory molecules, which are over activated in IBD patients and contribute significantly to disease pathogenesis. The proposed high selectivity of the agents is derived from its mode of action, that aims to specifically block certain inflammatory molecular patterns, without a general systemic effect on other molecular targets. It would be important for each oligonucleot...
Source: Frontiers in Pharmacology - April 23, 2019 Category: Drugs & Pharmacology Source Type: research

Plant-Derived Alkaloids: The Promising Disease-Modifying Agents for Inflammatory Bowel Disease
Conclusion This paper summarizes the current findings regarding the anti-colitis activity of plant-derived alkaloids and shows how these alkaloids exhibit significant and beneficial effects in alleviating colonic inflammation. These natural alkaloids are not only promising agents for IBD treatment but are also components for developing new wonder drugs. However, the underlying molecular mechanisms or toxicological evaluation of most plant-derived alkaloids still require much scientific research, and their actual efficacies for IBD patients have not been verified well in field research. Thus, further clinical trials to elu...
Source: Frontiers in Pharmacology - April 11, 2019 Category: Drugs & Pharmacology Source Type: research

Epithelial-specific ETS-1 (ESE1/ELF3) regulates apoptosis of intestinal epithelial cells in ulcerative colitis via accelerating NF-κB activation
In this study, we reported for the first time that ESE1/ELF3 was over-expressed in intestinal epithelial cells (IECs) of patients with UC. In DSS-induced colitis mouse models, we observed the up-regulation of ESE1/ELF3 accompanied with the elevated levels of IEC apoptotic markers (active caspase-3 and cleaved PARP) and NF-κB activation indicators [phosphorylated NF-κB p65 subunit (p-p65) and p-IκB] in colitis IECs. Increased co-localization of ESE1/ELF3 with active caspase-3 (and p-p65) in IECs of the DSS-induced colitis group further indicated the possible involvement of ESE1/ELF3 in NF-κB-mediated IEC apoptosis in UC...
Source: Immunologic Research - April 30, 2015 Category: Allergy & Immunology Source Type: research

Abstract 5358: IL-4/IL-13 induce Duox2/DuoxA2 expression and reactive oxygen production in human pancreatic and colon cancer cells
NADPH oxidase (NOX)-derived reactive oxygen species (ROS) contribute significantly to inflammation-associated carcinogenesis. Expression of dual oxidase 2 (Duox2), one of seven members of the NOX gene family, is up-regulated in inflammatory bowel disease, chronic pancreatitis, and in many human malignancies including carcinomas of the prostate, lung, and breast. Previously, we demonstrated that Stat1 and/or NF-κB play a critical role in modulating the enhanced expression of Duox2, and its cognate maturation factor DuoxA2, by IFN-γ and lipopolysaccharide in human pancreatic cancer cells. This cytokine-mediated increase in...
Source: Cancer Research - September 30, 2014 Category: Cancer & Oncology Authors: Wu, Y., Doroshow, J. H. Tags: Carcinogenesis Source Type: research

The cysteinyl leukotriene 2 receptor contributes to all-trans retinoic acid-induced differentiation of colon cancer cells
Conclusions: This study identifies a novel mechanism of action for ATRA in colorectal cancer cell differentiation and demonstrates that retinoids can have anti-tumorigenic effects through their action on the cysteinyl leukotriene pathway.
Source: BMC Cancer - July 8, 2013 Category: Cancer & Oncology Authors: Astrid BengtssonGunilla JönssonCecilia MagnussonTavga SalimCecilia AxelssonAnita Sjölander Source Type: research

Death-Associated Protein Kinase Controls STAT3 Activity in Intestinal Epithelial Cells.
ider-Stock R Abstract The TNF-IL-6-STAT3 pathway plays a crucial role in promoting ulcerative colitis-associated carcinoma (UCC). To date, the negative regulation of STAT3 is poorly understood. Interestingly, intestinal epithelial cells of UCC in comparison to ulcerative colitis show high expression levels of anti-inflammatory death-associated protein kinase (DAPK) and low levels of pSTAT3. Accordingly, epithelial DAPK expression was enhanced in STAT3(IEC-KO) mice. To unravel a possible regulatory mechanism, we used an in vitro TNF-treated intestinal epithelial cell model. We identified a new function of DAPK in ...
Source: The American Journal of Pathology - March 1, 2013 Category: Pathology Authors: Chakilam S, Gandesiri M, Rau TT, Agaimy A, Vijayalakshmi M, Ivanovska J, Wirtz RM, Schulze-Luehrmann J, Benderska N, Wittkopf N, Chellappan A, Ruemmele P, Vieth M, Rave-Fränk M, Christiansen H, Hartmann A, Neufert C, Atreya R, Becker C, Steinberg P, Schn Tags: Am J Pathol Source Type: research