CHICKEN NEURONAL ACETYLCHOLINE-RECEPTOR ALPHA-2-SUBUNIT GENE EXHIBITS NEURON-SPECIFIC EXPRESSION IN THE BRAIN AND SPINAL-CORD OF TRANSGENIC MICE

被引:19
作者
DAUBAS, P
SALMON, AM
ZOLI, M
GEOFFROY, B
DEVILLERSTHIERY, A
BESSIS, A
MEDEVIELLE, F
CHANGEUX, JP
机构
[1] Unité Associée D1284, Ctr. Natl. Rech. Sci., N., Institut Pasteur, 75724 Paris Cédex 15, 25
关键词
D O I
10.1073/pnas.90.6.2237
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
Transgenic mice carrying the complete structural gene of the alpha2 subunit of the chicken neuronal nicotinic acetylcholine receptor (nAChR) and 7 kilobase pairs (kbp) of 5' upstream and 3 kbp of 3' downstream sequences have been generated. The transgene was stably integrated in transgenic lines and transmitted to their progeny. Avian transgene expression was predominant in the central nervous system as detected by specific alpha2-subunit cDNA amplification. Moreover, in at least two independent mouse lines, its expression appeared to be neuron-specific and reproducibly restricted to subregions in the brain and spinal cord, as revealed by in situ hybridization histochemistry. Most cranial motor nuclei were positive, and several of the alpha2-subunit transgene-expressing structures corresponded to cholinergic areas in rodents. This study reveals that regulatory mechanisms giving rise to neuronal-specific gene expression have been conserved at least in part between birds and mammals.
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页码:2237 / 2241
页数:5
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