Identification of high-risk amino-acid substitutions in hematopoietic cell transplantation: a challenging task.
Identification of high-risk amino-acid substitutions in hematopoietic cell transplantation: a challenging task.
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DOI:
10.1038/bmt.2016.142
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发表时间:
2016-10
影响因子:
4.8
通讯作者:
Artz, A.
中科院分区:
文献类型:
--
作者:
Marino, S. R.;Lee, S. M.;Binkowski, T. A.;Wang, T.;Haagenson, M.;Wang, H-L;Maiers, M.;Spellman, S.;van Besien, K.;Lee, S. J.;Karrison, T.;Artz, A.
Allogeneic hematopoietic cell transplantation (HCT) offers the potential to cure hematologic malignancies. Absent an HLA matched donor, HLA mismatched unrelated donors may be used although risks of graft-versus-host disease (GvHD) and treatment related mortality (TRM) are higher. Identification and avoidance of amino acid substitutions and position types (AASPT) conferring higher risks of TRM and GvHD would potentially improve the success of transplantation from single HLA mismatched unrelated donors. Using random forest and logistic regression analyses, we identified 19 AASPT associated with greater risks for at least one adverse transplant outcome: grade III-IV acute GvHD, TRM, lower disease free survival or worse overall survival relative to HLA matched unrelated donors and to other AASPT. When tested in an independent validation cohort of 3,530 patients, none of the AASPT from the training set were validated as high-risk, however. Review of the literature shows that failure to validate original observations is the rule and not the exception in immunobiology and emphasizes the importance of independent validation prior to clinical application. Our current data do not support avoiding any specific class I AASPT for unrelated donors. Additional studies should be performed to fully understand the role of AASPT in HCT outcomes.
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影响因子:
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作者:
Duquesnoy, Rene;Spellman, Stephen;Haagenson, Michael;Wang, Tao;Horowitz, Mary M.;Oudsboorn, Machteld
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影响因子:
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通讯作者:
HENAUT, A