Nuclear calcium signaling in spinal neurons drives a genomic program required for persistent inflammatory pain.
Nuclear calcium signaling in spinal neurons drives a genomic program required for persistent inflammatory pain.
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DOI:
10.1016/j.neuron.2012.10.037
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发表时间:
2013-01-09
期刊:
影响因子:
16.2
通讯作者:
Kuner R
中科院分区:
文献类型:
--
作者:
Simonetti M;Hagenston AM;Vardeh D;Freitag HE;Mauceri D;Lu J;Satagopam VP;Schneider R;Costigan M;Bading H;Kuner R
Persistent pain induced by noxious stimuli is characterized by the transition from normosensitivity to hypersensitivity. Underlying mechanisms are not well understood, although gene expression is considered important. Here we show that persistent nociceptive-like activity triggers calcium transients in neuronal nuclei within the superficial spinal dorsal horn, and that nuclear calcium is necessary for the development of long-term inflammatory hypersensitivity. Using a nucleus-specific calcium signal perturbation strategy in vivo complemented by gene profiling, bioinformatics and functional analyses, we discovered a pain-associated, nuclear calcium-regulated gene program in spinal excitatory neurons. This includes C1q, a novel modulator of synaptic spine morphogenesis, which we found to contribute to activity-dependent spine remodelling on spinal neurons in a manner functionally associated with inflammatory hypersensitivity. Thus, nuclear calcium integrates synapse-to-nucleus communication following noxious stimulation and controls a spinal genomic response that mediates the transition between acute and long-term nociceptive sensitization by modulating functional and structural plasticity.
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