Correction of Th1-dominant Cytokine Profiles by High-dose Dexamethasone in Patients with Chronic Idiopathic Thrombocytopenic Purpura |
| |
Authors: | Chengshan Guo Xiaoxia Chu Yan Shi Weidong He Lizhen Li Lin Wang Yingxue Wang Jun Peng Ming Hou |
| |
Institution: | (1) Department of Hematology, Second Hospital of Shandong University, Jinan, 250033, China;(2) Department of Hematology, Yantai Yuhuangding Hospital, Yantai, 264000, China;(3) Department of Hematology, Qilu Hospital, Shandong University, Jinan, 250012, China;(4) Shandong Blood Center, Jinan, 250014, China |
| |
Abstract: | To investigate the possible correcting of T helper (Th) cytokine profiles by high-dose dexamethasone (HD-DXM) therapy in chronic
idiopathic thrombocytopenic purpura (ITP) with active disease, we determined the plasma levels of IFN-γ, IL-2, IL-4, IL-10,
and TGF-β1 in 52 patients before and after oral administration of 40 mg/day DXM for four consecutive days. The cytokine levels
were measured by enzyme-linked immunosorbent assay. The results showed that initial responses were reached in all patients
and sustained response (SR) rate is 46.15%. The pretreatment plasma levels of both IFN-γ and IL-2 were significantly increased
and those of IL-4, IL-10, and TGF-β1 significantly decreased, compared with those of the normal controls (P < 0.01), indicating a Th1-dominant cytokine profile typically found in ITP. After HD-DXM treatment, IFN-γ and IL-2 were decreased
(P < 0.01), whereas IL-4 and IL-10 were increased (P < 0.05). There was no significant difference between the HD-DXM-treated patients and the normal controls (P > 0.05). TGF-β1 was also increased (P < 0.01) after HD-DXM treatment, but still lower than that of the normal controls (P < 0.05). During following-up, the cytokine profiles in the SRs remained stable compared to the posttreatment level (P > 0.05), but IFN-γ and IL-2 levels raised up, and IL-4, IL-10, and TGF-β1 levels reduced again in the relapsed patients (P < 0.01). Our data demonstrate that HD-DXM is an effective initial therapy for ITP, and the Th1 cytokine dominance could be
corrected by HD-DXM. |
| |
Keywords: | Idiopathic thrombocytophenic purpura cytokines T helper lymphocyte dexamethasone |
本文献已被 PubMed SpringerLink 等数据库收录! |
|