Journal List > J Korean Soc Transplant > v.32(3) > 1101757

Kim, Jun, Hwang, Chung, Yang, Moon, Kim, and Kim: The Effect of Bortezomib on the Management of Immediate Postoperative Refractory Antibody-Mediated Rejection after Kidney Transplantation

Abstract

Background:

Bortezomib has been used to treat antibody-mediated rejection (AMR) that usually develops after kidney transplantation (KT). Although it has been used in various clinical situations, it is difficult to precisely define how the drug affects the clinical course. We used bortezomib to treat eight cases of AMR that developed immediately following KT in patients who were resistant to conventional treatment.

Methods:

Eight cases of refractory AMR that developed immediately after KT were treated with bortezomib on days 1, 4, 8, and 11.

Results:

The resolution rate was 75%, and the 2-year rejection-free survival rate was 83%. Six cases underwent immunologically high-risk KT. Six recovering patients exhibited clinical improvement within 2 weeks of the first dose of bortezomib and recovered completely within 2 months. The effects of bortezomib seemed to be prolonged; only one additional rejection episode was observed. The two failed patients never exhibited any clinical improvement and progressed aggressively to graft failure soon after transplantation. Their donor specific anti-human leukocyte antigen antibody were sustained at high levels.

Conclusions:

Bortezomib is an effective rescue therapy in patients with AMR that developed immediately after KT.

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Fig. 1.
Serum creatinine changes after bortezomib treatment of the six patients who recovered. Serum creatinine levels began to decrease within 2 weeks of bortezomib treatment, and recovery was achieved within 2 months.
jkstn-32-49f1.tif
Table 1.
Preoperative patient characteristics
Case no. Sex (age in yr) Donor (age in yr) Previous transplant history ABO-I HLA MN PRA (Class I/II) DSA XM RTX Induct PP
Initial Pre-KTa
1 F (43) Spouse (48) 0 No 6 0/0 Neg NA Neg No BSX 0
2 M (38) Deceased (45) 2 No 5 0/25 NA B54 9827 Neg No ATG 0
3 F (46) Son (19) 0 No 3 16/0 Neg Neg T, B CDC 1 BSX 9
4 F (32) Spouse (37) 0 No 5 0/54 DR9 8121 DR9 3472 B 1 BSX 5
                  FC      
5 F (39) Spouse (40) 0 1 (1:32) 5 16/60 A2 8578 A2 2671 T, B 1 BSX 10
                  FC      
6 F (47) Daughter (29) 0 No 2 83/20 B51 3997 NA Neg 1 ATG 0
7 F (57) Spouse (54) 1 No 6 91/100 DR11 16371 DR11 3346 T, B 1 BSX 13
              DR14 14486 DR14 3781 FC      
8 F (27) Mother (52) 0 No 1 0/0 Neg Neg Neg No BSX 0

Abbreviations: ABO-I, ABO incompatibility; HLA MN, human leukocyte antigen mismatch number; PRA, panel-reactive antibody; DSA, donor-specific antibody; KT, kidney transplantation; XM, crossmatching; RTX, rituximab; PP, plasmapheresis; Neg, negative; NA, not assessed; BSX, basiliximab; ATG, anti-thymocyte globulin; T, T-cell; B, B-cell; CDC, complement-dependent cytotoxicity; FC, flowcytometry.

a Last DSA before kidney transplantation.

Table 2.
Changes in donor-specific antibody levels during the peri-transplantation period
Case no. Initial Pre-KTa Pre-rejectionb Rejection (pre-bortezomibc) Post-bortezomibd Follow-up
1 Neg NA NA DR8 15741 DR8 3066 Neg (3, 6 mo)
2 NA B54 9827 NA B54 13333 B54 11089 NA
3 Neg Neg Neg Neg Neg NA
4 DR9 8121 DR9 3472 Neg DR9 15336 DR9 16440 DR9 13371 (7 mo)
5 A2 8578 A2 2671 A2 1996 A2 4876 Neg Neg (2, 8, 11 mo)
6 B51 3997 NA Neg B51 1901 Neg NA
7 DR11 16371 DR11 3346 Neg Neg Neg NA
  DR14 14486 DR14 3781        
8 Neg Neg Neg Neg Neg NA

Abbreviations: KT, kidney transplantation; Neg, negative; NA, not assessed.

a Last donor-specific antibody (DSA) before kidney transplantation;

b Last DSA before rejection;

c Last DSA before initiating bortezomib treatment;

d Follow-up DSA after bortezomib treatment.

Table 3.
Treatments for transplant recipients exhibiting antibody-mediated rejection
Case no. Rejection (POD) Initial therapy Bortezomib (POD) Post-transplant plasmapheresis HD start (POD) HD end (POD) Bx. (POD)
POD Pre-bortezomiba Post-bortezomibb
1 4 Steroid pulse 19 9 5 7 6 28 8
    ATG              
    Plasmapheresis              
2 8 Steroid pulse 21 9 6 7 10 Maintain 8
    Plasmapheresis              
3 6 Steroid pulse 12 8 2 8 - - 10
    Plasmapheresis              
4 4 Steroid pulse 10 4 2 1 7 Maintain 8
    Plasmapheresis              
5 3 ATG 11 3 3 10 5 7 4
    Plasmapheresis              
6 4 Steroid pulse 22 4 7 4 - - 6
    Plasmapheresis              
7 2 Steroid pulse 6 2 2 4 4 17 5
    Plasmapheresis              
8 3 Steroid pulse 13 7 2 6 7 17 4
    ATG              
    Plasmapheresis              

Abbreviations: POD, postoperative day; HD, hemodialysis; Bx., graft biopsy; ATG, anti-thymocyte globulin.

a Number of post-transplant plasmapheresis before initiating bortezomib treatment;

b Number of plasmapheresis after first dose of bortezomib.

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