Research Topic

Inflammation and Fibrosis in the Gastrointestinal Tract and Liver: Mechanisms and Targets

About this Research Topic

Causes of inflammation are multiple and include genetic diseases, immune mediated conditions, environmentally induced reactions (e.g. to pollution and drugs), toxic exposure, tissue injury and infectious diseases. The consequence of inflammation is wound healing following fibrous tissue repair and ...

Causes of inflammation are multiple and include genetic diseases, immune mediated conditions, environmentally induced reactions (e.g. to pollution and drugs), toxic exposure, tissue injury and infectious diseases. The consequence of inflammation is wound healing following fibrous tissue repair and regeneration. These principles apply to man and animals and represent a law of nature. It occurs in all organs, however, each organ shows a specific pattern of reactivity. In this Research Topic we focus on the gastrointestinal tract and the liver. We welcome submissions covering, but not limited to the following areas.

First, the general mechanism of inflammation. Inflammation is followed by induction of repair. Is fibrosis just an initial protective mechanism followed by renewal or does it represent permanent replacement of tissue and irreversible structural changes? When does regeneration lead to full restoration and when just to hyperproliferation? What pathways become activated to stop regeneration? Does overactivation lead to cancer?

Second, causes of inflammation in the liver and gut. Why excessive alcohol consumption hits one individual but not another? Why some individuals develop NAFLD and some progressive NASH? Why genetic mutations in only a small fraction of patients might lead to clinical manifestations (e.g. in genetic hemochromatosis)? Such amplifying disease co-factors are important for the liver but also for the gut. For example, what is the role of the intestinal mucus? What is the role of the local immune system vs systemic immunity? What can drugs really achieve? What is the impact of the economic factor in the widespread use of medications? Can therapies really change the course of diseases? How can fibrosis cause functional impairment in the liver, biliary system, pancreas, the upper and lower gastrointestinal tract? Is it inevitable for cancer to develop in chronic, uncontrolled inflammation and how long does it take to develop?

Third, the natural course of inflammation in the liver and gut. The non-invasive, quantitative, clinically useful measurement of inflammatory activity and collagen deposition within the organ are the focus of this section.

Fourth, treatment options. Does inhibition of inflammation require blockage of the disease-causing condition? Are steroids given as symptomatic medications helpful in the long run? Why biologic agents are not used for liver inflammation? Are there anti-fibrotic strategies for the liver and gut at the horizon? Do biologic agents in IBD prevent fibrosis?

Fifth, the role of surgery in inflammation. When to intervene? Is the incidence of surgery truly declining due to new pharmacologic therapies? What are the advantages and what are the pitfalls?

With this Research Topic we want to explore the real, current unmet needs in inflammation and fibrosis of the liver and gut – both in research and clinical practice and focus on fields where progress will be required in the future.


Keywords: NASH, NAFLD, IBD, Liver disease, Therapy


Important Note: All contributions to this Research Topic must be within the scope of the section and journal to which they are submitted, as defined in their mission statements. Frontiers reserves the right to guide an out-of-scope manuscript to a more suitable section or journal at any stage of peer review.

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Submission Deadlines

24 December 2020 Manuscript

Participating Journals

Manuscripts can be submitted to this Research Topic via the following journals:

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Topic Editors

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Submission Deadlines

24 December 2020 Manuscript

Participating Journals

Manuscripts can be submitted to this Research Topic via the following journals:

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