Introduction: Acute humoral rejection (AHR), a rare complication in orthotopic liver transplantation (OLT), responds poorly to conventional therapies. Bortezomib, a proteasome inhibitor, has been shown to be effective in treating plasma cell-derived tumors and acute rejection episodes after renal transplantation. Herein, we have reported our clinical experience with bortezomib as a novel approach to treat AHR after OLT.
Methods: We retrospectively analyzed the 247 adult OLTs performed from January 2007 to April 2011. Patients with AHR who were treated with steroid pulses, rituximab (375 mg/m2), and plasmapheresis (PP) were assigned to group A. Group B subjects were prescribed steroid pulses, rituximab, PP, and bortezomib (1.3 mg/m2), after March 2009.
Results: Among the 9 patients (3.6%) diagnosed with AHR, all subjects in group A (n=3) died within several days after AHR, whereas 4/6 (66.7%) group B patients were rescued and 3 (50%) survived at a mean follow-up 22.3 months (range, 18-26).
Conclusion: Proteasome inhibitor-based therapies provide a more effective strategy to treat AHR after OLT.
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