Journal
IMMUNOLOGICAL REVIEWS
Volume 303, Issue 1, Pages 168-186Publisher
WILEY
DOI: 10.1111/imr.13011
Keywords
antibody-mediated rejection; desensitization; plasma cell; transplantation
Categories
Funding
- Novartis
- Sanofi
- National Institute of Allergy and Infectious Diseases [R21AI142264, RO1AI154932]
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Solid organ transplantation is a life-saving procedure that has made significant progress in the past 70 years, particularly in T-cell-targeted immunosuppression and organ allocation systems. However, humoral alloimmune responses remain a major challenge, especially for patients with preexisting anti-HLA antibodies. Therapies to target plasma cells, the source of antibody production, have had limited effectiveness in reducing antibody levels.
Solid organ transplantation is a life-saving procedure for patients with end-stage organ disease. Over the past 70 years, tremendous progress has been made in solid organ transplantation, particularly in T-cell-targeted immunosuppression and organ allocation systems. However, humoral alloimmune responses remain a major challenge to progress. Patients with preexisting antibodies to human leukocyte antigen (HLA) are at significant disadvantages in regard to receiving a well-matched organ, moreover, those who develop anti-HLA antibodies after transplantation face a significant foreshortening of renal allograft survival. Historical therapies to desensitize patients prior to transplantation or to treat posttransplant AMR have had limited effectiveness, likely because they do not significantly reduce antibody levels, as plasma cells, the source of antibody production, remain largely unaffected. Herein, we will discuss the significance of plasma cells in transplantation, aspects of their biology as potential therapeutic targets, clinical challenges in developing strategies to target plasma cells in transplantation, and lastly, novel approaches that have potential to advance the field.
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