Abstract:
:Thrombomodulin, encoded by the THBD gene, is a critical regulator of coagulation and innate immunity. Its gene variant (rs3176123, 2729A>C) in the 3' untranslated region has been reported to be associated with vasculopathies. The present study analyzed the impact of THBD variation on transplant outcomes in a cohort of 317 patients who underwent unrelated HLA-matched bone marrow transplantation (BMT) for hematologic malignancies through the Japan Marrow Donor Program. The donor A/C or C/C genotype vs. the donor A/A genotype resulted in a lower incidence of grades II-IV acute graft-versus-host disease [GVHD; hazard ratio (HR) 0.66; 95 % confidence interval (CI) 0.44-0.99; P = 0.05] according to a multivariate analysis. In patients with grades II-IV acute GVHD, the donor A/C or C/C genotype vs. the donor A/A genotype was associated with significantly better overall survival rates (HR 0.45; 95 % CI 0.21-0.99, P = 0.05), while this effect was absent in other patients. A functional analysis using lymphocytes obtained from healthy individuals revealed that the 2729C allele has a higher level of THBD mRNA than the 2729A allele. These findings suggest the functional relevance of the rs3176123 variation and indicate that higher thrombomodulin expression by individuals with the 2729C allele likely accounts for their decreased risk for acute GVHD development and subsequent mortality.
journal_name
Int J Hematoljournal_title
International journal of hematologyauthors
Nomoto H,Takami A,Espinoza JL,Matsuo K,Mizuno S,Onizuka M,Kashiwase K,Morishima Y,Fukuda T,Kodera Y,Doki N,Miyamura K,Mori T,Nakao S,Ohtake S,Morishita Edoi
10.1007/s12185-015-1852-7subject
Has Abstractpub_date
2015-10-01 00:00:00pages
460-70issue
4eissn
0925-5710issn
1865-3774pii
10.1007/s12185-015-1852-7journal_volume
102pub_type
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