c-Maf Is Required for the Development of Dorsal Horn Laminae III/IV Neurons and Mechanoreceptive DRG Axon Projections

	c-Maf Is Required for the Development of Dorsal Horn Laminae III/IV Neurons and Mechanoreceptive DRG Axon Projections
	Hu, J; Huang, TW; Li, TT; Guo, Z; Cheng, LP
刊名	JOURNAL OF NEUROSCIENCE
	2012
卷号	32 期号:16 页码:5362-5373
通讯作者	Cheng, LP (reprint author), Chinese Acad Sci, Inst Neurosci, 320 Yue Yang Rd, Shanghai 200031, Peoples R China.,lpcheng@ion.ac.cn
英文摘要	Establishment of proper connectivity between peripheral sensory neurons and their central targets is required for an animal to sense and respond to various external stimuli. Dorsal root ganglion(DRG) neurons convey sensory signals of different modalities via their axon projections to distinct laminae in the dorsal horn of the spinal cord. In this study, we found that c-Maf was expressed predominantly in the interneurons of laminae III/IV, which primarily receive inputs from mechanoreceptive DRG neurons. In the DRG, c-Maf(+) neurons also coexpressed neurofilament-200, a marker for the medium-and large-diameter myelinated afferents that transmit non-noxious information. Furthermore, mouse embryos deficient in c-Maf displayed abnormal development of dorsal horn laminae III/IV neurons, as revealed by the marked reduction in the expression of several marker genes for these neurons, including those for transcription factors MafA and Rora, GABA(A) receptor subunit alpha 5, and neuropeptide cholecystokinin. In addition, among the four major subpopulations of DRG neurons marked by expression of TrkA, TrkB, TrkC, and MafA/GFR alpha 2/Ret, c-Maf was required selectively for the proper differentiation of MafA (+)/Ret (+)/GFR alpha 2 (+) low-threshold mechano-receptors (LTMs). Last, we found that the central and peripheral projections of mechanoreceptive DRG neurons were compromised in c-Maf deletion mice. Together, our results indicate that c-Maf is required for the proper development of MafA (+)/Ret (+)/GFR alpha 2 (+) LTMs in the DRG, their afferent projections in the dorsal horn and Pacinian corpuscles, as well as neurons in laminae III/IV of the spinal cord.
学科主题	Neurosciences & Neurology
类目[WOS]	Neurosciences
关键词[WOS]	VESICULAR GLUTAMATE TRANSPORTERS ; SPINAL-CORD ; SENSORY NEURONS ; TRANSMITTER PHENOTYPES ; TRANSCRIPTION FACTORS ; PROPER DEVELOPMENT ; ROOT GANGLIA ; CELL FATE ; EXPRESSION ; GENES
收录类别	SCI
语种	英语
WOS记录号	WOS:000303047600003
内容类型	期刊论文
版本	出版稿
源URL	[http://202.127.25.143/handle/331003/675]
专题	上海生化细胞研究所_上海生科院生化细胞研究所
推荐引用方式 GB/T 7714	Hu, J,Huang, TW,Li, TT,et al. c-Maf Is Required for the Development of Dorsal Horn Laminae III/IV Neurons and Mechanoreceptive DRG Axon Projections[J]. JOURNAL OF NEUROSCIENCE,2012,32(16):5362-5373.
APA	Hu, J,Huang, TW,Li, TT,Guo, Z,&Cheng, LP.(2012).c-Maf Is Required for the Development of Dorsal Horn Laminae III/IV Neurons and Mechanoreceptive DRG Axon Projections.JOURNAL OF NEUROSCIENCE,32(16),5362-5373.
MLA	Hu, J,et al."c-Maf Is Required for the Development of Dorsal Horn Laminae III/IV Neurons and Mechanoreceptive DRG Axon Projections".JOURNAL OF NEUROSCIENCE 32.16(2012):5362-5373.