The presence of GM-CSF and IL-4 interferes with effect of TGF-beta1 on antigen presenting cells in patients with multiple sclerosis and in rats with experimental autoimmune encephalomyelitis |
| |
Authors: | Xiao Bao-Guo Zhu Wen-Hua Lu Chuan-Zhen |
| |
Affiliation: | a Institute of Neurology, Huashan Hospital, Institutes of Brain Science and State Key Laboratory of Medical Neurobiology, Fudan University, 12 Wulumuqi Zhong Road, Shanghai 200040, China b Institute of Neurology, Huashan Hospital, Fudan University, Shanghai, China |
| |
Abstract: | The possibility to generate and expand tolerogenic dendritic cells (DC) with TGF-β1 in vitro opens new therapeutic perspectives for the treatment of autoimmune diseases. In the present study, GM-CSF+IL-4 induced the differentiation of DC from adherent peripheral blood mononuclear cells, which had a higher expression of HLA-DR, CD86 and CD1a and the capacity to stimulate T cells. TGF-β1 alone slightly promoted the generation of antigen presenting cells (APC) with higher expression of CD14, but did not differentiate them into E-cadherin + Langerhans cell (LC)-like DC. TGF-β1-driven APC exhibited the morphology, phenotypes and functions of tolerogenic immature DC, and had lower capacity to stimulate T cells. In vivo experiment demonstrates that TGF-β1-treated APC exhibited the therapeutic potential in Lewis rats with experimental autoimmune encephalomyelitis (EAE), followed by increase of IL-10 production in lymph nodes and decrease of inflammatory cells in spinal cords. Most importantly, GM-CSF/IL-4 used in DC preparation abolished the effect of TGF-β1 to induce tolerogenic APC in vitro and in vivo. The results reveal that the usage of GM-CSF for the generation of tolerogenic DC should not be copied from DC preparation for anti-tumor therapy. |
| |
Keywords: | TGF-β1 GM-CSF Dendritic cells Antigen presenting cells Experimental autoimmune encephalomyelitis |
本文献已被 ScienceDirect PubMed 等数据库收录! |
|