Background: Incomplete donor cell chimerism often occurs in thalassemia transplant due to host cells remain or reappear overtime, which is termed as mixed chimerism (MC). Objective: To compare the immunosuppression withdrawal (ISW) and donor lymphocyte infusion (DLI) in the correction of mixed chimerism (MC) after thalassemia transplantation. Methods: Eighty-seven patients with post-transplant MC admitted in our center from January 2010 to December 2019 were analyzed. Among them donor cells of 90%-95% and 75%-89% were classified as MC1 and MC2 respectively. MC3 donor cells <75%. The incidence and correction rate of MC, the occurrence rate of graft versus host disease (GVHD), timing of DLI were studied. Results: DLI was associated with higher correction rates and higher GVHD than ISW. In MC1 group, higher GVHD occurred in early and intermediate stage (P = 0.024/0.023) than ISW. In MC2 group, DLI in late stages had higher correction rates than ISW (P = 0.001). Conclusion: ISW was the primary strategy for MC1 patients. DLI should be given to the late-stage MC2 patients quickly. The earlier the treatment is provided, regardless of ISW or DLI, the more likely that patients develop GVHD.
Published in | American Journal of Pediatrics (Volume 10, Issue 1) |
DOI | 10.11648/j.ajp.20241001.14 |
Page(s) | 18-25 |
Creative Commons |
This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited. |
Copyright |
Copyright © The Author(s), 2024. Published by Science Publishing Group |
Mixed Chimerism, GVHD, Donor Lymphocyte Infusion, Thalassemia, HSCT
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APA Style
Liao, J., Liang, S., Chen, J., Liu, X., Xia, Y., et al. (2024). Treatment of Mixed Chimerism After Hematopoietic Stem Cell Transplantation in Patients with Thalassemia Major. American Journal of Pediatrics, 10(1), 18-25. https://doi.org/10.11648/j.ajp.20241001.14
ACS Style
Liao, J.; Liang, S.; Chen, J.; Liu, X.; Xia, Y., et al. Treatment of Mixed Chimerism After Hematopoietic Stem Cell Transplantation in Patients with Thalassemia Major. Am. J. Pediatr. 2024, 10(1), 18-25. doi: 10.11648/j.ajp.20241001.14
AMA Style
Liao J, Liang S, Chen J, Liu X, Xia Y, et al. Treatment of Mixed Chimerism After Hematopoietic Stem Cell Transplantation in Patients with Thalassemia Major. Am J Pediatr. 2024;10(1):18-25. doi: 10.11648/j.ajp.20241001.14
@article{10.11648/j.ajp.20241001.14, author = {Jianyun Liao and Shimin Liang and Jingtao Chen and Xiaoting Liu and Yuqian Xia and Jujian He and Weiwei Zhang and Chaoke Pu and Lan He and Yuelin He and Xiaoqin Feng and Xuedong Wu and Chunfu Li}, title = {Treatment of Mixed Chimerism After Hematopoietic Stem Cell Transplantation in Patients with Thalassemia Major}, journal = {American Journal of Pediatrics}, volume = {10}, number = {1}, pages = {18-25}, doi = {10.11648/j.ajp.20241001.14}, url = {https://doi.org/10.11648/j.ajp.20241001.14}, eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajp.20241001.14}, abstract = {Background: Incomplete donor cell chimerism often occurs in thalassemia transplant due to host cells remain or reappear overtime, which is termed as mixed chimerism (MC). Objective: To compare the immunosuppression withdrawal (ISW) and donor lymphocyte infusion (DLI) in the correction of mixed chimerism (MC) after thalassemia transplantation. Methods: Eighty-seven patients with post-transplant MC admitted in our center from January 2010 to December 2019 were analyzed. Among them donor cells of 90%-95% and 75%-89% were classified as MC1 and MC2 respectively. MC3 donor cells P = 0.024/0.023) than ISW. In MC2 group, DLI in late stages had higher correction rates than ISW (P = 0.001). Conclusion: ISW was the primary strategy for MC1 patients. DLI should be given to the late-stage MC2 patients quickly. The earlier the treatment is provided, regardless of ISW or DLI, the more likely that patients develop GVHD. }, year = {2024} }
TY - JOUR T1 - Treatment of Mixed Chimerism After Hematopoietic Stem Cell Transplantation in Patients with Thalassemia Major AU - Jianyun Liao AU - Shimin Liang AU - Jingtao Chen AU - Xiaoting Liu AU - Yuqian Xia AU - Jujian He AU - Weiwei Zhang AU - Chaoke Pu AU - Lan He AU - Yuelin He AU - Xiaoqin Feng AU - Xuedong Wu AU - Chunfu Li Y1 - 2024/02/20 PY - 2024 N1 - https://doi.org/10.11648/j.ajp.20241001.14 DO - 10.11648/j.ajp.20241001.14 T2 - American Journal of Pediatrics JF - American Journal of Pediatrics JO - American Journal of Pediatrics SP - 18 EP - 25 PB - Science Publishing Group SN - 2472-0909 UR - https://doi.org/10.11648/j.ajp.20241001.14 AB - Background: Incomplete donor cell chimerism often occurs in thalassemia transplant due to host cells remain or reappear overtime, which is termed as mixed chimerism (MC). Objective: To compare the immunosuppression withdrawal (ISW) and donor lymphocyte infusion (DLI) in the correction of mixed chimerism (MC) after thalassemia transplantation. Methods: Eighty-seven patients with post-transplant MC admitted in our center from January 2010 to December 2019 were analyzed. Among them donor cells of 90%-95% and 75%-89% were classified as MC1 and MC2 respectively. MC3 donor cells P = 0.024/0.023) than ISW. In MC2 group, DLI in late stages had higher correction rates than ISW (P = 0.001). Conclusion: ISW was the primary strategy for MC1 patients. DLI should be given to the late-stage MC2 patients quickly. The earlier the treatment is provided, regardless of ISW or DLI, the more likely that patients develop GVHD. VL - 10 IS - 1 ER -