ArticleThe Journal of international medical research2023
High levels of NK Cells in graft are associated with reduced febrile neutropenia after haploidentical peripheral blood stem cell transplantation.
Article in The Journal of international medical research, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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6 authors at 2 institutions in 1 country.
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Abstract
objectiveTo investigate the impact of natural killer (NK) cells in the graft on the outcome following haploidentical peripheral blood stem cell transplantation (haplo-PBSCT).
methodsWe retrospectively collected data from patients who had undergone haplo-PBSCT at our centre from January 2019 to November 2021. The percentage of NK cells in stem cell grafts was detected by flow cytometry. Based on the median (range) count of NK cells (1.8 [0.4-6.0] × 10
resultsData from 96 patients were analysed. Patients were evenly distributed (48 in each group) into high and low NK cell count groups. There was no significant difference in neutrophil and platelet recovery between the two groups. However, the rates of febrile neutropenia, bacterial infection, and invasive fungal disease (IFD) were significantly reduced in the high compared with the low NK cell count group. There was no significant difference in rates of cytomegalovirus (CMV) and Epstein-Barr virus (EBV) infections between groups. There was no significant difference between groups in grades II and above acute graft versus host disease (GVHD), progression-free survival (PFS), or overall survival (OS).
conclusionA high number of NK cells in the graft may reduce febrile neutropenia, IFD and bacterial infection following haplo-PBSCT but it has no significant effect on aGVHD, PFS, or OS.
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