IVIG Therapy Ameliorates Kawasaki Disease by Regulating NK and CD8-related cytotoxic activity and Tregs expression
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摘要
Purpose: Kawasaki disease(KD) is a pediatric self-limited vasculitis characterized by immune-mediated destruction of the arterial wall and myocardium. Treatment with IVIG plus Aspirin is the effective cure for this illness. However its etiology and the mechanism of IVIG treatment are poorly understood. Here, thirty-eight KD patients were enrolled to further understanding the immune response in KD patients with IVIG treatment.Methods: PBMC from KD patients with or without IVIG treatment were collected at indicated times during the acute phase:(i) before treated with IVIG,(ii) days 2-3 after treated with IVIG and(iii) days 5-7 after treated with IVIG. And then we examined the cytotoxic activity of PBMC against K562, the frequency of immune cells, and their underlying mechanisms by flow cytometry(gallios). Results: We found that IVIG treatment could activate and expanded NK cells and CD8~+ T cells, that efficiently killed K562 cells. Perforin-granzyme B pathway were involved in their cytotoxicity.Treg expansion,T GF-beta release were present at the acute phase of KD.Conclusions: In conclusion, Our findings may potentially provide an immulogic menchanism to understand for IVIG treatment of KD patients, that may influence the strategies to treat and monitor patients with Kawasaki disease.
Purpose: Kawasaki disease(KD) is a pediatric self-limited vasculitis characterized by immune-mediated destruction of the arterial wall and myocardium. Treatment with IVIG plus Aspirin is the effective cure for this illness. However its etiology and the mechanism of IVIG treatment are poorly understood. Here, thirty-eight KD patients were enrolled to further understanding the immune response in KD patients with IVIG treatment.Methods: PBMC from KD patients with or without IVIG treatment were collected at indicated times during the acute phase :(i) before treated with IVIG,(ii) days 2-3 after treated with IVIG and(iii) days 5-7 after treated with IVIG. And then we examined the cytotoxic activity of PBMC against K562, the frequency of immune cells, and their underlying mechanisms by flow cytometry(gallios). Results: We found that IVIG treatment could activate and expanded NK cells and CD8+ T cells, that efficiently killed K562 cells. Perforin-granzyme B pathway were involved in their cytotoxicity.Treg expansion,T GF-beta release were present at the acute phase of KD.Conclusions: In conclusion, Our findings may potentially provide an immulogic menchanism to understand for IVIG treatment of KD patients, that may influence the strategies to treat and monitor patients with Kawasaki disease.
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