scholarly journals IL-35 recombinant protein reverses inflammatory bowel disease and psoriasis through regulation of inflammatory cytokines and immune cells

Author(s):  
Yuan Wang ◽  
Ying Mao ◽  
Junfeng Zhang ◽  
Gang Shi ◽  
Lin Cheng ◽  
...  
2020 ◽  
Vol 14 (Supplement_1) ◽  
pp. S176-S176
Author(s):  
Y Chen ◽  
C Ma ◽  
Y Dang ◽  
K Chen ◽  
S Shen ◽  
...  

Abstract Background The dietary is one of the environmental triggers for inflammatory bowel disease (IBD). We investigated which types of food can induce the relapse and worsen the symptoms in IBD patients through the epidemiologic study, and then explored the underlying mechanisms in an animal study. Methods A questionnaire assessing demographics, dietary habits and relapse-associated risk factors in patients has been administered to consecutive IBD patients who suffered one or more relapses at West China Hospital from September 2016 to November 2018. The mice with dextran sulphate sodium (DSS)-induced chronic colitis were orally administrated with top one type of risk food. The severity of mice colitis after administration was evaluated by disease activity index (DAI), histology, activity of myeloperoxidase (MPO) and the level of inflammatory cytokines. The infiltration of immune cells in lamia propria (LP) of mice was analysed by flow cytometry (FCM). Results A total of 306 patients participated in the survey, including 188 ulcerative colitis (UC) patients and 118 Crohn’s disease (CD) patients. Spicy food ranked first for the relapse in patients with IBD. In particular, 54.3% (n = 102) UC patients and 53.4% (n = 63) CD patients reported that the intake of spicy food could cause a relapse. Fifty per cent UC (n = 94) patients and 40.7% (n = 48) CD patients reported that the intake of spicy food could worsen their symptoms. In the animal study, the oral administration of capsaicin aggravated the chronic colitis in mice, along with the increased activity of MPO and the upregulated level of inflammatory cytokines. The pro-inflammatory effect of capsaicin was dose independent but time dependent. The antagonist for transient receptor potential vanilloid 1 (TRPV1), the receptor of capsaicin, could significantly suppress the capsaicin-induced deterioration of colitis. FCM revealed that capsaicin-administration led to the recruitment of multiple types of immune cells in mice LP and the recruitment of neutrophils was the most prominent. Conclusion The intake of spicy food can contribute to the relapse and deterioration of symptoms in IBD patients with UC and CD. In mice, the oral administration of capsaicin exacerbated DSS-induced colitis which was characterised by the recruitment of neutrophils, indicating the association between neutrophils and the relapse-triggering effect of capsaicin in colitis.


2020 ◽  
Vol 21 (22) ◽  
pp. 8434
Author(s):  
Maki Miyakawa ◽  
Takumi Konno ◽  
Takayuki Kohno ◽  
Shin Kikuchi ◽  
Hiroki Tanaka ◽  
...  

High mobility group box 1 protein (HMGB1) is involved in the pathogenesis of inflammatory bowel disease (IBD). Patients with IBD develop zinc deficiency. However, the detailed roles of HMGB1 and zinc deficiency in the intestinal epithelial barrier and cellular metabolism of IBD remain unknown. In the present study, Caco-2 cells in 2D culture and 2.5D Matrigel culture were pretreated with transforming growth factor-β (TGF-β) type 1 receptor kinase inhibitor EW-7197, epidermal growth factor receptor (EGFR) kinase inhibitor AG-1478 and a TNFα antibody before treatment with HMGB1 and inflammatory cytokines (TNFα and IFNγ). EW-7197, AG-1478 and the TNFα antibody prevented hyperpermeability induced by HMGB1 and inflammatory cytokines in 2.5D culture. HMGB1 affected cilia formation in 2.5D culture. EW-7197, AG-1478 and the TNFα antibody prevented the increase in cell metabolism induced by HMGB1 and inflammatory cytokines in 2D culture. Furthermore, ZnSO4 prevented the hyperpermeability induced by zinc chelator TPEN in 2.5D culture. ZnSO4 and TPEN induced cellular metabolism in 2D culture. The disruption of the epithelial barrier induced by HMGB1 and inflammatory cytokines contributed to TGF-β/EGF signaling in Caco-2 cells. The TNFα antibody and ZnSO4 as well as EW-7197 and AG-1478 may have potential for use in therapy for IBD.


2017 ◽  
Vol 2017 ◽  
pp. 1-8 ◽  
Author(s):  
Qingdong Guan ◽  
Jiguo Zhang

Cytokines play an important role in the immunopathogenesis of inflammatory bowel disease (IBD), including Crohn’s disease and ulcerative colitis, where they drive and regulate multiple aspects of intestinal inflammation. The imbalance between proinflammatory and anti-inflammatory cytokines that occurs in IBD results in disease progression and tissue damage and limits the resolution of inflammation. Targeting cytokines have been novel strategies in the treatment of IBD. Recent studies show the beneficial effects of anticytokine treatments to IBD patients, and multiple novel cytokines are found to be involved in the pathogenesis of IBD. In this review, we will discuss the recent advances of novel biologics in clinics and clinical trials, and novel proinflammatory and anti-inflammatory cytokines found in IBD with focusing on IL-12 family and IL-1 family members as well as their relevance to the potential therapy of IBD.


Author(s):  
Hao Wu ◽  
Tingzi Hu ◽  
Hong Hao ◽  
Michael A Hill ◽  
Canxia Xu ◽  
...  

Abstract Cardiovascular diseases (CVDs) remain the leading cause of morbidity and mortality despite aggressive treatment of traditional risk factors. Chronic inflammation plays an important role in the initiation and progression of CVDs. Inflammatory bowel disease (IBD) is a systemic state of inflammation exhibiting increased levels of pro-inflammatory cytokines including tumor necrosis factor-α, interleukin (IL)-1β, and IL-6. Importantly, IBD is associated with increased risk for CVDs especially in women and young adults, including coronary artery disease, stroke, thromboembolic diseases, and arrhythmias. Potential mechanisms underlying the increased risk for CVDs in IBD patients include increased levels of inflammatory cytokines and oxidative stress, altered platelet function, hypercoagulability, decreased numbers of circulating endothelial progenitor cells, endothelial dysfunction, and possible interruption of gut microbiota. Although IBD does not appear to exacerbate the traditional risk factors for CVDs, including hypertension, hyperlipidemia, diabetes mellitus, and obesity, aggressive risk stratifications are important for primary and secondary prevention of CVDs for IBD patients. Compared to 5-ASA and corticosteroids, anti-TNF-α therapy in IBD patients was consistently associated with decreasing cardiovascular events. In the absence of contraindications, low-dose aspirin and statins appear to be beneficial for IBD patients. Low-molecular-weight heparin is also recommended for patients who are hospitalized with acute IBD flares without major bleeding risk. A multidisciplinary team approach should be considered for the management of IBD patients.


2021 ◽  
Author(s):  
Marilena Letizia ◽  
Ulrike Kaufmann ◽  
Yin-Hu Wang ◽  
Lorenz Gerbeth ◽  
Annegret Sand ◽  
...  

AbstractObjectiveInflammatory bowel disease (IBD) is characterized by dysregulated intestinal immune responses and constitutes a major clinical challenge in need of new treatment modalities to improve patient care. Store-operated Ca2+ entry (SOCE) is the predominant Ca2+ influx pathway in T cells and other immune cells, regulating many of their functional properties. It is currently unknown whether the pharmacologic blockade of SOCE represents a suitable drug-target for IBD treatment.DesignUsing mass and flow cytometry the effects of SOCE inhibition on lamina propria (LP) immune cells of patients with ulcerative colitis (UC) and Crohn’s disease (CD) were investigated. Primary organoid cultures served to study the impact of SOCE inhibition on the function, differentiation and survival of intestinal epithelial cells (IEC). T cell transfer models of colitis were applied to examine how the genetic or pharmacologic ablation of SOCE affects the clinical course of IBD in mice.ResultsWe observed that the LP of IBD patients is characterized by an enrichment of innate lymphoid cells (ILC), CD4+ and CD8+ effector- as well as T regulatory cells producing IL-17 and TNFα. The pharmacologic inhibition of SOCE attenuated the production of pathogenic cytokines including IL-2, IL-4, IL-6, IL-17, TNFα and IFNγ by human colonic T cells and ILC, reduced the production of IL-6 by B cells and the production of IFNγ by myeloid cells, without affecting the viability, differentiation and function of primary IEC. T cell-specific genetic deletion of the SOCE signaling components Orai1, Stim1 or Stim2 revealed that the magnitude of SOCE correlates with the function of T cells and intestinal inflammation in mice. Moreover, the pharmacologic inhibition of SOCE alleviated the clinical course of colitic mice.ConclusionOur data suggest that SOCE inhibition may serve as a new pharmacologic strategy for treating IBD.


2001 ◽  
Vol 120 (5) ◽  
pp. A184-A184
Author(s):  
K INA ◽  
Y KUNO ◽  
T MATSUURA ◽  
K KYOKANE ◽  
A IMADA ◽  
...  

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