Inflammatory bowel disease following solid organ transplantation

Area of Science:

• Gastroenterology
• Immunology
• Transplantation Medicine

Background:

• Inflammatory bowel disease (IBD) is a T cell-mediated gut inflammation.
• De novo IBD post-solid organ transplantation (SOT) occurs despite immunosuppression.
• IBD is more common after liver transplant, potentially linked to co-existing autoimmune conditions.

Observation:

• Case report highlights diagnostic challenges and potential role of DAMPs/PAMPs in post-SOT IBD.
• Annual incidence of de novo IBD post-SOT is ten times higher than in the general population.
• Recurrent IBD post-transplant is more common and aggressive than de novo IBD.

Findings:

• Cumulative risk of recurrent IBD 10 years post-liver transplant is 70%, versus 30% for de novo IBD.
• Risk factors for post-transplant IBD include CMV infection and tacrolimus use.
• Post-transplant IBD often requires colectomy due to medical refractoriness.

Implications:

• Understanding DAMPs/PAMPs' role may reveal new therapeutic targets for post-SOT IBD.
• Early diagnosis and management are crucial for aggressive post-transplant IBD.
• Further research is needed to elucidate the mechanisms driving de novo and recurrent IBD post-SOT.