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Mismatched donor cell infusion-related syndrome following microtransplant in patients with acute myeloid leukemia

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Author:
No author available
Journal Title:
Chinese Medical Journal
Issue:
7
DOI:
10.1097/CM9.0000000000002611
Key Word:
Microtransplant;Immunotherapy;Adoptive immune cell infusion;Adverse events;Acute myeloid leukemia;Microtransplant;Immunotherapy;Adoptive immune cell infusion;Adverse events;Acute myeloid leukemia

Abstract: Background::Immunotherapies such as adoptive immune cell infusion and immune-modulating agents are widely used for cancer treatment, and the concomitant symptoms, including cytokine release syndrome (CRS) or immune-related adverse events (irAEs), are frequently reported. However, clinical manifestations induced by mismatched donor granulocyte colony-stimulating factor mobilized peripheral blood mononuclear cell (GPBMC) infusion in patients receiving microtransplant (MST) have not yet been well depicted.Methods::We analyzed 88 cycles of mismatched GPBMC infusion in patients with acute myeloid leukemia receiving MST and 54 cycles of chemotherapy without GPBMC infusion as a comparison. Clinical symptoms and their correlation with clinical features, laboratory findings, and clinical response were explored.Results::Fever (58.0% [51/88]) and chills (43.2% [38/88]) were the significant early-onset symptoms after GPBMC infusion. Patients possessing less human leukocyte antigen-matching loci with the donor or those with unrelated donors experienced more chills (3 [2–5] loci vs. 5 [3–5] loci, P = 0.043 and 66.7% [12/18] vs. 37.1% [26/70], P = 0.024). On the other hand, those with decreased CD4 +/CD8 + T-cell ratio developed more fever (0.8 [0.7–1.2] vs. 1.4 [1.1–2.2], P = 0.007). Multivariable analysis demonstrated that younger patients experienced more fever (odds ratio [OR] = 0.963, 95% confidence interval [CI]: 0.932–0.995, P = 0.022), while patients with younger donors experienced more chills (OR = 0.915, 95% CI: 0.859–0.975, P = 0.006). Elevated ultra-sensitive C-reactive protein levels in the absence of cytokine storm were observed following GPBMC infusion, which indicated mild and transient inflammatory response. Although no predictive value of infusion-related syndrome to leukemia burden change was found, the proportion of host pre-treatment activated T cells was positively correlated with leukemia control. Conclusions::Mismatched GPBMC infusion in MST induced unique infusion-related symptoms and laboratory changes, which were associated with donor- or recipient-derived risk factors, with less safety and tolerance concerns than reported CRS or irAEs.

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