Expression Patterns and Implications of LaminB1 in Rat Cochleae

Expression Patterns and Implications of LaminB1 in Rat Cochleae
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LaminB1 在大鼠耳蜗中的表达模式和意义

DOI:
10.1007/s11596-019-2035-1
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发表时间:
2019-04
影响因子:
2.4
通讯作者:
Chu Han-qi
Chu Han-qi
中科院分区:
医学3区
文献类型:
--
作者:
Du Zhi-hui;Chen Jin;Chen Qing-guo;Zhou Liang-qiang;Bing Dan;Liu Yun;Sun Yan-bo;Li Peng-jun;Qi Fan;Zhu Hong-mei;Chu Han-qi

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LaminB1是核纤层的主要成分,是细胞增殖和衰老的有效调节剂,也是神经元迁移和大脑发育所必需的。然而,LaminB1在大鼠耳蜗中的表达模式仍未完全揭示。利用免疫荧光、Western blotting和实时荧光定量PCR技术,对LaminB1在大鼠耳蜗中的分布和表达进行了研究。免疫荧光染色显示LaminB 1主要定位于听毛细胞(HC)、螺旋神经节细胞(SGC)、血管纹(STV,包括螺旋韧带)、赖斯纳膜(RM)和利姆布斯螺旋板(LLS)。Western blotting分析表明LaminB1在大鼠耳蜗中的分布具有组织特异性。LaminB1蛋白在SGC和基底膜(BM)中的表达高于STV。LaminB1 mRNA在耳蜗组织中的表达存在差异。这些结果初步揭示了LaminB1的表达模式,为进一步研究LaminB1在听觉功能中的作用提供了理论基础。
LaminB1, a major component of the nuclear lamina, is a potent regulator of cellular proliferation and senescence and also known to be essential for neuronal migration and brain development. However, the expression patterns of LaminB1 in the rat cochleae are still not fully revealed. Utilizing immunofluorescence, Western blotting, and quantitative real-time PCR, we identified the distribution and expression of LaminB1 in the rat cochleae. Immunofluorescence staining indicated that LaminB1 was mainly localized in the auditory hair cells (HCs), spiral ganglion cells (SGC), stria vascularis (STV, including spiral ligament), Reissner’s membrane (RM), and limbus laminae spiralis (LLS). Western blotting analysis illustrated that the distribution of LaminB1 in rat cochleae was characterized by tissue specificity. The LaminB1 protein was expressed more in SGC and basilar membrane (BM) than in STV. Meanwhile, the mRNA expression of LaminB1 displayed difference in cochlear tissues. These observations preliminarily revealed the expression patterns of LaminB1, providing a theoretical basis for further study on the role of LaminB1 in auditory function.
鸡发育过程中核层粘连蛋白的差异表达。
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