Inhibition of Inflammatory Pain by Activating B-Type Natriuretic Peptide Signal Pathway in Nociceptive Sensory Neurons

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	Inhibition of Inflammatory Pain by Activating B-Type Natriuretic Peptide Signal Pathway in Nociceptive Sensory Neurons
	Zhang, Xu
刊名	JOURNAL OF NEUROSCIENCE
	2010
卷号	30 期号:32 页码:10927-10938
关键词	DORSAL-ROOT GANGLION DEPENDENT PROTEIN-KINASE RAT SPINAL-CORD GENE-RELATED PEPTIDE PERIPHERAL AXOTOMY GLUTAMATE RELEASE NEUROPEPTIDE-Y SUBSTANCE-P PRESYNAPTIC INHIBITION SOMATOSTATIN RECEPTORS
ISSN号	0270-6474
通讯作者	Zhang, X (reprint author), Chinese Acad Sci, Inst Neurosci, Shanghai Inst Biol Sci, 320 Yue Yang Rd, Shanghai 200031, Peoples R China,xu.zhang@ion.ac.cn
英文摘要	B-type natriuretic peptide (BNP) has been known to be secreted from cardiac myocytes and activate its receptor, natriuretic peptide receptor-A (NPR-A), to reduce ventricular fibrosis. However, the function of BNP/NPR-Apathway in the somatic sensory system has been unknown. In the present study, we report a novel function of BNP in pain modulation. Using microarray and immunoblot analyses, we found that BNP and NPR-A were expressed in the dorsal root ganglion (DRG) of rats and upregulated after intraplantar injection of complete Freund's adjuvant (CFA). Immunohistochemistry showed that BNP was expressed in calcitonin gene-related peptide (CGRP)containing small neurons and IB4 (isolectin B4)-positive neurons, whereas NPR-A was present in CGRP-containing neurons. Application of BNP reduced the firing frequency of small DRG neurons in the presence of glutamate through opening large-conductance Ca(2+)-activated K(+) channels (BK(Ca) channels). Furthermore, intrathecal injection of BNP yielded inhibitory effects on formalin-induced flinching behavior and CFA-induced thermal hyperalgesia in rats. Blockade of BNP signaling by BNP antibodies or cGMP-dependent protein kinase (PKG) inhibitor KT5823 [(9S, 10R, 12R)-2,3,9,10,11,12-hexahydro-10-methoxy-2,9-dimethyl-1-oxo-9,12-epoxy-1H-diindolo[1,2,3-fg:3',2',1'-kl]pyrrolo[3,4-i][1,6]benzodiazocine-10-carboxylic acid methyl ester] impaired the recovery from CFA-induced thermal hyperalgesia. Thus, BNP negatively regulates nociceptive transmission through presynaptic receptor NPR-A, and activation of the BNP/NPR-A/PKG/BK(Ca) channel pathway in nociceptive afferent neurons could be a potential strategy for inflammatory pain therapy.
学科主题	Neurosciences & Neurology
收录类别	SCI
资助信息	National Natural Science Foundation of China[30630029, 30621062]; Ministry of Science and Technology of the People's Republic of China[2006CB806604, 2009CB522005]; Chinese Academy of Sciences[KSCX1-YW-R-31]
语种	英语
公开日期	2012-07-13
内容类型	期刊论文
源URL	[http://ir.sibs.ac.cn/handle/331001/1582]
专题	上海神经科学研究所_神经所(总) 上海神经科学研究所_感觉系统研究组
推荐引用方式 GB/T 7714	Zhang, Xu. Inhibition of Inflammatory Pain by Activating B-Type Natriuretic Peptide Signal Pathway in Nociceptive Sensory Neurons[J]. JOURNAL OF NEUROSCIENCE,2010,30(32):10927-10938.
APA	Zhang, Xu.(2010).Inhibition of Inflammatory Pain by Activating B-Type Natriuretic Peptide Signal Pathway in Nociceptive Sensory Neurons.JOURNAL OF NEUROSCIENCE,30(32),10927-10938.
MLA	Zhang, Xu."Inhibition of Inflammatory Pain by Activating B-Type Natriuretic Peptide Signal Pathway in Nociceptive Sensory Neurons".JOURNAL OF NEUROSCIENCE 30.32(2010):10927-10938.