Peripheral blood lymphocyte responses to cytomegalovirus seropositivity after allogeneic-hematopoietic stem cell transplantation
Authors Zhang J, Chen X, Rong G, Xu T, Zhao H, Chen D, Wu L, Huang P, Wang F
Received 18 December 2017
Accepted for publication 3 May 2018
Published 24 August 2018 Volume 2018:11 Pages 5143—5150
Checked for plagiarism Yes
Review by Single-blind
Peer reviewers approved by Dr Justinn Cochran
Peer reviewer comments 2
Editor who approved publication: Professor Jianmin Xu
Jiexin Zhang,1,2,* Xian Chen,1,2,* Guodong Rong,1,2 Ting Xu,1,2 Hong Zhao,1,2 Dan Chen,1,2 Lei Wu,1,2 Peijun Huang,1,2 Fang Wang1,2
1Department of Laboratory Medicine, The First Affiliated Hospital of Nanjing Medical University, 210029, Nanjing, China; 2National Key Clinical Department of Laboratory Medicine, 210029, Nanjing, China
*These authors contributed equally to this work
Background: The main purpose of this study was to investigate the relationship among cytomegalovirus (CMV) viremia, peripheral immune cells alternations, and leukemia prognosis.
Patients and methods: We studied 90 leukemia patients who underwent allogeneic hematopoietic stem cell transplantation (allo-HSCT) from 2008 to 2015. Their complete clinical laboratory data were collected until 1 year after transplantation.
Results: All patients were serum CMV negative before allo-HSCT. After transplantation, the CMV reactivation group showed increased peripheral CD8+ T cells and decreased CD4+ T cells and B cells. However, CD8/CD4 ratio and B cells restored by control of CMV infection due to 2 months maximum course of ganciclovir treatment. CMV seropositivity was positively related to leukemia-free survival (LFS) of all recruited leukemia types.
Conclusion: In summary, CMV drives immune cell post-transplantation fluctuation, which also favors LFS of leukemia partly resulted from CD8+ T cells.
Keywords: cytomegalovirus, leukemia, allo-HSCT, CD8+ T cells, leukemia-free survival
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