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Ligation of Na, K ATPase β3 subunit on monocytes by a specific monoclonal antibody mediates T cell hypofunction
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Ligation of Na, K ATPase β3 subunit on monocytes by a specific monoclonal antibody mediates T cell hypofunction
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Journal Article
Ligation of Na, K ATPase β3 subunit on monocytes by a specific monoclonal antibody mediates T cell hypofunction
2018
Overview
T cells play a crucial role in orchestrating body immune responses. T cell hyperfunction, however, leads to inflammation and induction of autoimmune diseases. Understanding of T cell regulation mechanisms and successful modulation of T cell responses is beneficial in treatment of disease associated to T cell hyperresponsiveness. Our previous study indicated that monoclonal antibody (mAb) P-3E10, a mAb to Na, K ATPase β3 subunit, inhibited anti-CD3-induced PBMC proliferation. In the current study, we further investigated the mechanism of mAb P-3E10 in the induction of T cell hypofunction. We demonstrated that mAb P-3E10 decreased T cell proliferation and Th1, Th2 and Th17 cytokine production. Monocytes were the cells playing a key role in mediation of mAb P-3E10 induced T cell hypofunction. The inhibition of T cell activation by mAb P-3E10 required cell contact between monocytes and T cells. The mAb P-3E10 induced the down-expression level of MHC class II and CD86 and increased IL-6, IL-10 and TNF-α production of monocytes. We concluded that ligation of the Na, K ATPase β3 subunit on monocytes by mAb P-3E10 arbitrated T cell hypofunction. This mAb might be a promising novel immunotherapeutic antibody for the treatment of hyperresponsive T cell associated diseases.
Publisher
Public Library of Science,Public Library of Science (PLoS)
Subject
Antibodies, Monoclonal, Murine-Derived - immunology
/ Antibodies, Monoclonal, Murine-Derived - pharmacology
/ Antigens
/ Cloning
/ Histocompatibility Antigens Class II - immunology
/ Humans
/ Major histocompatibility complex
/ Medicine and Health Sciences
/ Peripheral blood mononuclear cells
/ Research and Analysis Methods
/ Sodium-Potassium-Exchanging ATPase - antagonists & inhibitors
/ Sodium-Potassium-Exchanging ATPase - immunology
/ T-Lymphocytes, Helper-Inducer - cytology
