Journal
MEDICINE
Volume 97, Issue 38, Pages -Publisher
LIPPINCOTT WILLIAMS & WILKINS
DOI: 10.1097/MD.0000000000012429
Keywords
basiliximab; etanercept; interferon gamma; natural killer T cells; steroid-refractory acute GVHD
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Funding
- National Natural Science Foundation of China [81401321]
- Science Research Project of Medicine and Hygiene of Zhejiang province [2018PY052]
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Rationale: Basiliximab and etanercept have achieved promising responses in steroid-refractory graft versus host disease (SR-GVHD). However, the in vivo immune changes following the treatment have not been elucidated. Patient concerns: A 14-year-old boy presented with skin rash and diarrhea 20 days after haploidentical hemotopoietic stem cell transplantation. Diagnoses: We made the diagnose of grade 3 acute GVHD with skin and gastrointestinal involvement. Interventions: After the failure of the first-line treatment with methylprednisolone, combined anti-cytokine therapies with basiliximab and etanercept were prescibed. Outcomes: He achieved complete remission by basiliximab and etanercept. Furthermore, we detected that donor CD3(+)CD56(+) Natural killer T(NKT)-like cells expanded gradually after the period of lymphocytopenia caused by GVHD and anti-cytokine therapy. The expansion of NKT-like cells was in association with high serum IFN-gamma. NKT-like cells showed preferred proliferation in response to IFN-gamma and potent cytotoxicity against leukemia cells. The expansion persisted > 2 years and the patient had a leukemia-free survival of 66 months. Lessons: Our case indicated that combined anti-cytokine treatment may reset the immune system and cause NKT-like cells to exhibit a predilection for expansion.
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