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- Title
Features of cytomegalovirus infection and evaluation of cytomegalovirus-specific T cells therapy in children's patients following allogeneic hematopoietic stem cell transplantation: A retrospective single-center study.
- Authors
Yongsheng Ruan; Tingting Luo; Qiujun Liu; Xuan Liu; Libai Chen; Jianyun Wen; Yuhua Xiao; Danfeng Xie; Yuelin He; Xuedong Wu; Xiaoqin Feng
- Abstract
Cytomegalovirus (CMV) infection remains a critical cause of mortality after allogeneic hematopoietic stem cell transplantation (allo-HSCT), despite improvement by pre-emptive antivirus treatment. CMV-specific cytotoxic T lymphocytes (CMV-CTL) are universally used and proven well-tolerance after allo-HSCT in adult clinical trials. However, it is not comprehensively evaluated in children's patients. Herein, we conducted a retrospective study to determine the risk factors of CMV infection and evaluation of CMV-CTL in children patients who underwent allo-HSCT. As result, a significantly poor 5-year overall survival was found in the CMV infection group (87.3 vs. 94.6%, p=0.01). Haploidentical HSCT (haplo-HSCT) was identified as an independent risk factor for CMV infection through both univariate and multivariate analyses (p<0.001, p=0.027, respectively). Furthermore, the cumulative incidence of CMV infection was statistically higher in the haplo-HSCT group compared to the HLA-matched donor group (44.2% vs. 21.6%, p<0.001). Finally, the overall response rate of CMV-CTL was 89.7% (26/29 patients) in CMV infection after allo-HSCT. We concluded that CMV infection following allo-HSCT correlated with increased mortality in children's patients, and haplo-HSCT was an independent risk factor for CMV infection. Adoptive CMV-CTL cell therapy was safe and effective in pediatric patients with CMV infection.
- Subjects
HEMATOPOIETIC stem cell transplantation; CHILD patients; CYTOMEGALOVIRUS diseases; CELLULAR therapy; CYTOTOXIC T cells; T cells; IMMUNOSENESCENCE; NEUROPEPTIDE Y
- Publication
Frontiers in Cellular & Infection Microbiology, 2022, Vol 12, p1
- ISSN
2235-2988
- Publication type
Article
- DOI
10.3389/fcimb.2022.1027341