scholarly journals Tissue-Resident T Cells in Chronic Relapsing–Remitting Intestinal Disorders

Cells ◽  
2021 ◽  
Vol 10 (8) ◽  
pp. 1882
Author(s):  
Juliana Barreto de Albuquerque ◽  
Christoph Mueller ◽  
Bilgi Gungor
Keyword(s):  
Rheumatoid Arthritis ◽  
Multiple Sclerosis ◽  
Cell Biology ◽  
Critical Factor ◽  
Therapeutic Strategies ◽  
Inflammatory Disorders ◽  
Relapsing Remitting ◽  
Bowel Diseases ◽  
Inflammatory Bowel ◽  
Barrier Tissues

Tissue-resident memory T (TRM) cells critically contribute to the rapid immunoprotection and efficient immunosurveillance against pathogens, particularly in barrier tissues, but also during anti-tumor responses. However, the involvement of TRM cells also in the induction and exacerbation of immunopathologies, notably in chronically relapsing auto-inflammatory disorders, is becoming increasingly recognized as a critical factor. Thus, TRM cells may also represent an attractive target in the management of chronic (auto-) inflammatory disorders, including multiple sclerosis, rheumatoid arthritis, celiac disease and inflammatory bowel diseases. In this review, we focus on current concepts of TRM cell biology, particularly in the intestine, and discuss recent findings on their involvement in chronic relapsing–remitting inflammatory disorders. Potential therapeutic strategies to interfere with these TRM cell-mediated immunopathologies are discussed.

scholarly journals Preventing disability in inflammatory bowel disease

2017 ◽  
Vol 10 (11) ◽  
pp. 865-876 ◽  
Author(s):  
Patrick B. Allen ◽  
Corinne Gower-Rousseau ◽  
Silvio Danese ◽  
Laurent Peyrin-Biroulet
Keyword(s):  
Rheumatoid Arthritis ◽  
Multiple Sclerosis ◽  
Treatment Strategies ◽  
Organ Damage ◽  
World Health ◽  
Bowel Diseases ◽  
Treatment Paradigm ◽  
Inflammatory Bowel ◽  
New Treatment ◽  
Health Organization

Disability is a common worldwide health challenge and it has been increasing over the past 3 decades. The treatment paradigm has changed dramatically in inflammatory bowel diseases (IBDs) from control of symptoms towards full control of disease (clinical and endoscopic remission) with the goal of preventing organ damage and disability. These aims are broadly similar to rheumatoid arthritis and multiple sclerosis. Since the 1990s, our attention has focused on quality of life in IBD, which is a subjective measure. However, as an objective end-point in clinical trials and population studies, measures of disability in IBD have been proposed. Disability is defined as ‘…any restriction or lack (resulting from an impairment) of ability to perform an activity in the manner or within the range considered normal for a human being.’ Recently, after 10 years of an international collaborative effort with the World Health Organization (WHO), a disability index was developed and validated. This index ideally would assist with the assessment of disease progression in IBD. In this review, we will provide the evidence to support the use of disability in IBD patients, including experience from rheumatoid arthritis and multiple sclerosis. New treatment strategies, and validation studies that have underpinned the interest and quantification of disability in IBD, will be discussed.

scholarly journals Solar Radiation and Vitamin D: Mitigating Environmental Factors in Autoimmune Disease

2012 ◽  
Vol 2012 ◽  
pp. 1-9 ◽  
Author(s):  
Gerry K. Schwalfenberg
Keyword(s):  
Rheumatoid Arthritis ◽  
Multiple Sclerosis ◽  
Inflammatory Bowel Disease ◽  
Vitamin D ◽  
Type 1 Diabetes ◽  
Autoimmune Disease ◽  
Solar Radiation ◽  
Inflammatory Bowel

This paper looks at the environmental role of vitamin D and solar radiation as risk reduction factors in autoimmune disease. Five diseases are considered: multiple sclerosis, type 1 diabetes, rheumatoid arthritis, autoimmune disease of the thyroid, and inflammatory bowel disease. Clinical relevant studies and factors that may indicate evidence that autoimmune disease is a vitamin D-sensitive disease are presented. Studies that have resulted in prevention or amelioration of some autoimmune disease are discussed. An example of the utility of supplementing vitamin D in an unusual autoimmune disease, idiopathic thrombocytic purpura, is presented.

Can We Extrapolate Data from One Immune-Mediated Inflammatory Disease to Another One?

2019 ◽  
Vol 26 (2) ◽  
pp. 248-258 ◽  
Author(s):  
Fernando Magro ◽  
Rosa Coelho ◽  
Armando Peixoto
Keyword(s):  
Rheumatoid Arthritis ◽  
Inflammatory Diseases ◽  
Analytical Techniques ◽  
Approval Process ◽  
Homogeneous Population ◽  
Post Translational Modifications ◽  
Innovator Product ◽  
Immune Mediated ◽  
Bowel Diseases ◽  
Inflammatory Bowel

Immune-mediated inflammatory diseases share several pathogenic pathways and this pushes sometimes to extrapolate from one disease or indication to others. A biosimilar can be defined as a biotherapeutic product which is similar in terms of quality, safety, and efficacy to an already licensed reference biotherapeutic product. We review the substrate for extrapolation, the current approval process for biosimilars and the pioneering studies on biosimilars performed in rheumatoid arthritis patients. A biosimilar has the same amino acid sequence as its innovator product. However, post-translational modifications can occur and the current analytical techniques do not allow the final structure. To test the efficacy in one indication, a homogeneous population should be chosen and immunogenicity features are essential in switching and interchangeability. CT-P13 (Remsima™; Inflectra™) is a biosimilar of reference infliximab (Remicade®). It meets most of the requirements for extrapolation. Nevertheless, in inflammatory bowel diseases (IBD) we need more studies to confirm the postulates of extrapolation from rheumatoid arthritis and ankylosing spondylitis to IBD. Furthermore, an effective pharmacovigilance schedule is mandatory to look for immunogenicity and side effects.

scholarly journals Caspase-11 attenuates gastrointestinal inflammation and experimental colitis pathogenesis

2015 ◽  
Vol 308 (2) ◽  
pp. G139-G150 ◽  
Author(s):  
Tere M. Williams ◽  
Rachel A. Leeth ◽  
Daniel E. Rothschild ◽  
Dylan K. McDaniel ◽  
Sheryl L. Coutermarsh-Ott ◽  
...  
Keyword(s):  
Critical Factor ◽  
Experimental Colitis ◽  
Wild Type ◽  
Colonic Injury ◽  
Caspase 1 ◽  
Colon Inflammation ◽  
Cytokine Analysis ◽  
Relapsing Remitting ◽  
Inflammatory Bowel ◽  
And Function

Nucleotide-binding domain and leucine-rich repeat containing protein inflammasome formation plays an essential role in modulating immune system homeostasis in the gut. Recently, a caspase-11 noncanonical inflammasome has been characterized and appears to modulate many biological functions that were previously considered to be solely dependent on caspase-1 and the canonical inflammasome. To better elucidate the function of this noncanonical inflammasome during inflammatory bowel disease, experimental colitis was induced in wild-type and Casp11 −/− mice utilizing dextran sulfate sodium (DSS). Here, we report that caspase-11 attenuates acute experimental colitis pathogenesis. Casp11 −/− mice showed significantly increased morbidity and colon inflammation following DSS exposure. Subsequent cytokine analysis revealed that IL-1β and IL-18 levels in the colon were significantly reduced in the Casp11 −/− mice compared with the wild-type animals. Additional mechanistic studies utilizing IL-1β and IL-18 reconstitution revealed that Casp11 −/− hypersensitivity was associated with the loss of both of these cytokines. Bone marrow reconstitution experiments further revealed that caspase-11 gene expression and function in both hematopoietic- and nonhematopoietic-derived cells contribute to disease attenuation. Interestingly, unlike caspase-1, caspase-11 does not appear to influence relapsing remitting disease progression or the development of colitis-associated tumorigenesis. Together, these data identify caspase-11 as a critical factor protecting the host during acute DSS-induced colonic injury and inflammation but not during chronic inflammation and tumorigenesis.

Anti-inflammatory Activity of Extra Virgin Olive Oil Polyphenols: Which Role in the Prevention and Treatment of Immune-Mediated Inflammatory Diseases?

2017 ◽  
Vol 18 (1) ◽  
pp. 36-50 ◽  
Author(s):  
Carmela Santangelo ◽  
Rosaria Varì ◽  
Beatrice Scazzocchio ◽  
Patrizia De Sancti ◽  
Claudio Giovannini ◽  
...  
Keyword(s):  
Rheumatoid Arthritis ◽  
Multiple Sclerosis ◽  
Systemic Lupus Erythematosus ◽  
Phenolic Compounds ◽  
Lupus Erythematosus ◽  
Inflammatory Diseases ◽  
Virgin Olive Oil ◽  
Extra Virgin Olive Oil ◽  
Systemic Lupus ◽  
Inflammatory Bowel

Background and Objective: Altered inflammatory response characterizes chronic immunemediated inflammatory diseases (IMID) such as rheumatoid arthritis, inflammatory bowel disease, multiple sclerosis, systemic lupus erythematosus, and psoriasis. Accumulating evidence indicates that regular consumption of extra virgin olive oil (EVOO), the main source of fat in the Mediterranean diet, is associated with a reduced risk of developing chronic degenerative disorders such as cardiovascular diseases, type 2 diabetes and cancer. The beneficial effects on health of EVOO have been attributed, besides to the monounsaturated fats content, to the presence of phenolic compounds that have antioxidant, anti-inflammatory and immunomodulatory properties. The purpose of this review is to provide an overview of the effects of EVOO polyphenols on IMID highlighting the potential mechanisms of action. Methods: Scientific papers were found by searching in PubMed up to May 2017 using the following key words: rheumatoid arthritis, inflammatory bowel disease, multiple sclerosis, systemic lupus erythematosus, and psoriasis also in combination with EVOO, phenolic compounds, oleuropein, oleocantal, hydroxytyrosol,tyrosol and oleochantal. Results: In vitro and in vivo studies indicate that EVOO and its polyphenols can improve diseases symptoms in IMID, by acting both at local and systemic levels and by modulating several molecular pathways. Nevertheless, there are not sufficient data to achieve specific nutritional guidelines. Conclusion: Further research is needed to evaluate the real contribution of EVOO and its phenolic compounds in modulating the IMID-associated inflammatory perturbations, in order to develop appropriate nutritional recommendations.

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