scholarly journals The Impact of HLA-Mismatch Direction on the Outcome of Unrelated Bone Marrow Transplantation: A Retrospective Analysis from the JSHCT HLA Working Group

2014 ◽  
Vol 20 (2) ◽  
pp. S57
Author(s):  
Junya Kanda ◽  
Yoshinobu Maeda ◽  
Kazuteru Ohashi ◽  
Takahiro Fukuda ◽  
Koichi Miyamura ◽  
...  
Blood ◽  
2008 ◽  
Vol 112 (11) ◽  
pp. 3005-3005
Author(s):  
Hiroshi Yagasaki ◽  
Seiji Kojima ◽  
Shunichi Kato ◽  
Koji Kato ◽  
Hiromasa Yabe ◽  
...  

Abstract DNA typing for HLA-A, -B, -C, -DQB1 and -DRB1 determines outcome in patients with severe aplastic anemia (SAA) who receive unrelated bone marrow transplantation (U-BMT). Based on our previous study of 300 subjects, complete matched (10/10) donors are preferable, but 1-allele-mismatched (9/10) donors are also acceptable. Several studies have addressed the additive effects of HLA-DPB1 for patients with hematological malignancies. In recent reports, HLA-DPB1 mismatching decreased the incidence of relapse, but increased the incidence of acute GVHD. However, the impact of matching for HLA-DPB1 remains unknown in SAA patients. To explore the impact of HLA-DPB1 on the outcome, we analyzed outcomes in 169 recipients with SAA who received U-BMT from an HLA complete matched or 1-allele mismatched donor through the Japan Marrow Donor Program. Median patient age was 17 years (range: 1 to 64 years), and 102 males and 67 females were included. Among 169 pairs, 101 were matched for 10/10 alleles and 68 matched for 9/10 alleles. Although the overall survival was comparable between the groups (10/10 matched group; 75.2%, 9/10 matched group; 64.5%, p=0.633), the incidence of acute GVHD (II–IV) was significantly higher in the 9/10 matched group (15.3%) than in 10/10 matched group (32.2%) (p=0.012). Therefore the impact of HLA-DPB1 matching was analyzed independently in each group. In the 10/10 matched group, 30 of 101 pairs (30%) were matched for HLA-DPB1, whereas 71 pairs (70%) were mismatched for HLA-DPB1. In the 9/10 matched group, 21 of 68 pairs (30%) were matched for HLA-DPB1, whereas 47 pairs (70%) were mismatched for HLA-DPB1. In the 10/10 matched transplants, the survival rate was comparable between the HLA-DPB1 matched group (74.4%) and the HLA-DPB1 mismatched group (75.7%) (p=0.894). The incidence of acute GVHD (II-IV) was lower in the HLA-DPB1 matched group (8.0%) than in the HLA-DPB1 mismatched group (18.1%), but this difference was not significant (p=0.193). In 9/10 matched transplants, the survival rate was comparable between the HLA-DPB1 matched group (71.4%) and the HLA-DPB1 mismatched group (61.7%) (p=0.826). The incidence of acute GVHD (II-IV) was also lower in the HLADPB1 matched group (21.0%) than in the HLA-DPB1 mismatched group (37.2%), but this difference was not significant (p=0.169). The incidence of chronic GVHD and rejection rate were not associated with HLA-DPB1 matching. In conclusion, HLA-DPB1 matching is not essential for U-BMT recipients with SAA when 10/10 or 9/10 allele-matched donors are available.


2014 ◽  
Vol 56 (6) ◽  
pp. e96-e98 ◽  
Author(s):  
Emiko Miyashita ◽  
Hisao Yoshida ◽  
Daisuke Mori ◽  
Natsuki Nakagawa ◽  
Takako Miyamura ◽  
...  

2020 ◽  
Vol 99 (5) ◽  
pp. 1099-1110
Author(s):  
Koji Kawamura ◽  
Junya Kanda ◽  
Kazuteru Ohashi ◽  
Takahiro Fukuda ◽  
Koji Iwato ◽  
...  

1997 ◽  
Vol 15 (2) ◽  
pp. 566-573 ◽  
Author(s):  
F Locatelli ◽  
C Niemeyer ◽  
E Angelucci ◽  
C Bender-Götze ◽  
S Burdach ◽  
...  

PURPOSE To evaluate the role of allogeneic bone marrow transplantation (BMT) in children with chronic myelomonocytic leukemia (CMML). PATIENTS AND METHODS Forty-three children with CMML given BMT and reported to the European Working Group on Myelodysplastic Syndrome in Childhood (EWOG-MDS) data base were evaluated. In 25 cases, the donor was a human leukocyte antigen (HLA)-identical or a one-antigen-disparate relative, in four cases a mismatched family donor, and in 14 a matched unrelated donor (MUD). Conditioning regimens consisted of total-body irradiation (TBI) and chemotherapy in 22 patients, whereas busulfan (Bu) with other cytotoxic drugs was used in the remaining patients. RESULTS Six of 43 patients (14%), five of whom received transplants from alternative donors, failed to engraft. There was a significant difference in the incidences of chronic graft-versus-host disease (GVHD) between children transplanted from compatible/one-antigen-mismatched relatives and from alternative donors (23% and 87%, respectively; P < .005). Probabilities of transplant-related mortality for children given BMT from HLA-identical/one-antigen-disparate relatives or from MUD/ mismatched relatives were 9% and 46%, respectively. The probability of relapse for the entire group was 58%, whereas the 5-year event-free survival (EFS) rate was 31%. The EFS rate for children given BMT from an HLA-identical sibling or one-antigen-disparate relative was 38%. In this latter group, patients who received Bu had a better EFS compared with those given TBI (62% v 11%, P < .01). CONCLUSION Children with CMML and an HLA-compatible relative should be transplanted as early as possible. Improvement of donor selection, GVHD prophylaxis, and supportive care are needed to ameliorate results of BMT from alternative donors.


1996 ◽  
Vol 47 (1-2) ◽  
pp. 80
Author(s):  
Z. Tatari ◽  
H. Espérou ◽  
C. Chastang ◽  
C. Fortier ◽  
J.C. Bensa ◽  
...  

1996 ◽  
Vol 47 (1-2) ◽  
pp. 82
Author(s):  
Jeannet Michel ◽  
Speiser Daniel ◽  
Rufer Nathalie ◽  
Grundschober Christophe ◽  
Gratwohl Alois ◽  
...  

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