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Updated: Jul 19, 2026
04:48
A High-throughput Calcium-flux Assay to Study NMDA-receptors with Sensitivity to Glycine/D-serine and Glutamate
Published on: July 10, 2018
Interleukin-2 inhibits NMDA receptor-mediated currents directly and may differentially affect subtypes
Yi Shen1, Li-Jun Zhu, Shuang-Shuang Liu
1Department of Neurobiology, Institute for Neuroscience, Zhejiang University School of Medicine, Hangzhou 310058, China.
Biochemical and Biophysical Research Communications
|October 31, 2006
Summary
Interleukin-2 (IL-2) rapidly inhibits N-methyl-D-aspartate (NMDA) receptor currents in neurons and HEK cells. This suggests IL-2 directly interacts with NMDA receptors, affecting NR2A and NR2B subtypes differently.
Area of Science:
- Neuroscience
- Immunology
- Molecular Biology
Background:
- N-methyl-D-aspartate (NMDA) receptors are crucial for synaptic plasticity and neuronal function.
- Interleukin-2 (IL-2) is a cytokine primarily known for its role in immune responses.
- The direct impact of IL-2 on neuronal receptor function remains largely unexplored.
Purpose of the Study:
- To investigate the effects of IL-2 on NMDA receptor-mediated currents.
- To determine if IL-2 directly interacts with NMDA receptors.
- To examine subtype-specific effects of IL-2 on NMDA receptors.
Main Methods:
- Whole-cell patch-clamp recordings were employed.
- Experiments were conducted on rat cultured hippocampal neurons.
- HEK 293 cells expressing recombinant NMDA receptors (NR1/NR2A and NR1/NR2B) were utilized.
Main Results:
- IL-2 significantly and immediately decreased peak NMDA receptor-mediated currents (I(NMDA)) in both cell types.
- IL-2 inhibited NR1/NR2A and NR1/NR2B currents by 54±5% and 30±4%, respectively.
- The inhibition of I(NMDA) by IL-2 was dose-dependent (0.01-1ng/ml).
Conclusions:
- IL-2 rapidly inhibits NMDA receptor currents.
- The findings suggest a direct interaction between IL-2 and NMDA receptors.
- IL-2 exhibits differential effects on NR1/NR2A and NR1/NR2B NMDA receptor subtypes.
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