Novel function of PIWIL1 in neuronal polarization and migration via regulation of microtubule-associated proteins

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	Novel function of PIWIL1 in neuronal polarization and migration via regulation of microtubule-associated proteins
	Zhao, PP; Yao, MJ; Chang, SY; Gou, LT; Liu, MF; Qiu, ZL; Yuan, XB
刊名	MOLECULAR BRAIN
	2015
卷号	8 期号:1 页码:39-39
关键词	CENTRAL-NERVOUS-SYSTEM RADIAL MIGRATION CEREBRAL-CORTEX PIRNAS GENES MIWI SPERMATOGENESIS MULTIPOLAR LETHALITY ELEMENTS
通讯作者	Yuan, XB (reprint author), Chinese Acad Sci, Shanghai Inst Biol Sci, Inst Neurosci, Shanghai 200031, Peoples R China.,xyuan@hussmanautism.org
英文摘要	Background: Young neurons in the developing brain establish a polarized morphology for proper migration. The PIWI family of piRNA processing proteins are considered to be restrictively expressed in germline tissues and several types of cancer cells. They play important roles in spermatogenesis, stem cell maintenance, piRNA biogenesis, and transposon silencing. Interestingly a recent study showed that de novo mutations of PIWI family members are strongly associated with autism. Results: Here, we report that PIWI-like 1 (PIWIL1), a PIWI family member known to be essential for the transition of round spermatid into elongated spermatid, plays a role in the polarization and radial migration of newborn neurons in the developing cerebral cortex. Knocking down PIWIL1 in newborn cortical neurons by in utero electroporation of specific siRNAs resulted in retardation of the transition of neurons from the multipolar stage to the bipolar stage followed by a defect in their radial migration to the proper destination. Domain analysis showed that both the RNA binding PAZ domain and the RNA processing PIWI domain in PIWIL1 were indispensable for its function in neuronal migration. Furthermore, we found that PIWIL1 unexpectedly regulates the expression of microtubule-associated proteins in cortical neurons. Conclusions: PIWIL1 regulates neuronal polarization and radial migration partly via modulating the expression of microtubule-associated proteins (MAPs). Our finding of PIWIL1's function in neuronal development implies conserved functions of molecules participating in morphogenesis of brain and germline tissue and provides a mechanism as to how mutations of PIWI may be associated with autism.
学科主题	Neurosciences
WOS标题词	Neurosciences & Neurology
收录类别	SCI
语种	英语
WOS记录号	WOS:000356762300002
公开日期	2016-02-26
内容类型	期刊论文
源URL	[http://ir.sibs.ac.cn/handle/331001/3943]
专题	上海神经科学研究所_神经所(总)
推荐引用方式 GB/T 7714	Zhao, PP,Yao, MJ,Chang, SY,et al. Novel function of PIWIL1 in neuronal polarization and migration via regulation of microtubule-associated proteins[J]. MOLECULAR BRAIN,2015,8(1):39-39.
APA	Zhao, PP.,Yao, MJ.,Chang, SY.,Gou, LT.,Liu, MF.,...&Yuan, XB.(2015).Novel function of PIWIL1 in neuronal polarization and migration via regulation of microtubule-associated proteins.MOLECULAR BRAIN,8(1),39-39.
MLA	Zhao, PP,et al."Novel function of PIWIL1 in neuronal polarization and migration via regulation of microtubule-associated proteins".MOLECULAR BRAIN 8.1(2015):39-39.