CTLA-4 polymorphism and clinical outcome post allogeneic hematopoietic stem cell transplantation.

Autor: Mossallam GI; Bone Marrow Transplantation Laboratory Unit, National Cancer Institute, Cairo University, Cairo, Egypt. Electronic address: ghadamossallam@hotmail.com., Samra MA
Jazyk: angličtina
Zdroj: Human immunology [Hum Immunol] 2013 Dec; Vol. 74 (12), pp. 1643-8. Date of Electronic Publication: 2013 Aug 22.
DOI: 10.1016/j.humimm.2013.08.002
Abstrakt: CTLA-4 inhibitory molecule plays an important role in regulating T cell activation. It is considered a crucial element in keeping the immune balance and has been implicated in cancer, autoimmunity and transplantation immunology. Inconsistent observations are reported regarding its association with hematopoietic stem cell transplantation (HSCT). Genotyping of CTLA-4 was performed in recipients and their HLA-matched donors for +49A/G and CT60 polymorphisms (80 and 94 pairs, respectively) using PCR-RFLP. No association was encountered between both polymorphisms in patients and donors and acute or chronic graft versus host disease. Significant association was observed between recipient +49A/G G allele and lower disease-free survival and overall survival compared to AA genotype (HR: 2.17, p = 0.03, 95% CI: 1.05-4.48 and HR: 2.54, p = 0.01, 95% CI: 1.16-5.54), respectively. Our results suggest that CTLA-4 genotyping may predict outcome in patients post HSCT. To validate our results, further studies on a larger cohort are needed.
(Copyright © 2013 American Society for Histocompatibility and Immunogenetics. Published by Elsevier Inc. All rights reserved.)
Databáze: MEDLINE
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