The pathogenesis of inflammatory bowel disease: translational implications for clinicians.

Maria T. Abreu

Research output: Contribution to journalReview articlepeer-review

48 Scopus citations


Research in the pathogenesis of inflammatory bowel disease (IBD) has dramatically broadened our understanding of these complex disorders. These clinical manifestations result from a dysregulated immune response in the presence of luminal bacteria. Recent identification of mutations in the NOD2 gene, a protein involved in the sensing of bacteria, offers genetic support for the model of perturbed host-microbial interactions in Crohn's disease. Several immunologic pathways have been identified that play a role in maintaining gut immune homeostasis. Abnormal expression of proinflammatory, deleterious cytokines such as tumor necrosis factor-a and interferon-g results in direct and indirect tissue damage. The search for specific causative microbial agents in IBD continues to be intense. This paper describes the advances in our understanding of IBD pathogenesis, with an emphasis on how this information is translated into patient care. The next stage of research will take advantage of such molecular biologic techniques to identify new pathogenetic mechanisms and targets for therapy tailored to individual patients.

Original languageEnglish
Pages (from-to)481-489
Number of pages9
JournalCurrent Gastroenterology Reports
Issue number6
StatePublished - Dec 2002
Externally publishedYes


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