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Dysbiosis in Inflammatory Bowel Disease: Pathogenic Role and Potential Therapeutic Targets

Journal

Publisher

MDPI
DOI: 10.3390/ijms23073464

Keywords

inflammatory bowel disease; gut dysbiosis; inflammation; immunomodulation; epigenetics

Funding

  1. Coordenacao de Aperfeicoamento de Pessoal de Nivel Superior-Brazil (CAPES) [001]
  2. National Council for Scientific and Technological Development (CNPq) [306634/2019-8]
  3. Fundacao Carlos Chagas Filho de Amparo a Pesquisa do Estado do Rio de Janeiro (FAPERJ) [E26/202.781/2017, E26/211.740/2015]

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Microbe-host communication is crucial for maintaining vital functions of a healthy host. Disruption of this communication is associated with various diseases, including Crohn's disease and ulcerative colitis. Identifying microorganisms that affect disease susceptibility and phenotypes in humans is still challenging. Recent insights into the role of diet and environmental factors on the gut microbiome have direct implications for the immune response and the development of IBD. The complexity of IBD pathogenesis suggests the need for an integrative approach to identify specific therapeutic targets.
Microbe-host communication is essential to maintain vital functions of a healthy host, and its disruption has been associated with several diseases, including Crohn's disease and ulcerative colitis, the two major forms of inflammatory bowel disease (IBD). Although individual members of the intestinal microbiota have been associated with experimental IBD, identifying microorganisms that affect disease susceptibility and phenotypes in humans remains a considerable challenge. Currently, the lack of a definition between what is healthy and what is a dysbiotic gut microbiome limits research. Nevertheless, although clear proof-of-concept of causality is still lacking, there is an increasingly evident need to understand the microbial basis of IBD at the microbial strain, genomic, epigenomic, and functional levels and in specific clinical contexts. Recent information on the role of diet and novel environmental risk factors affecting the gut microbiome has direct implications for the immune response that impacts the development of IBD. The complexity of IBD pathogenesis, involving multiple distinct elements, suggests the need for an integrative approach, likely utilizing computational modeling of molecular datasets to identify more specific therapeutic targets.

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