细胞 src 基因表达与转基因文化中的慢性发育相关. : (pp6060 在线观看
Khalid A Tobal1, David K Ellis1, David I Depomerai1
1Department of Zollogy, University of Nottingham, Nottingham NG7 2RD. U.K.
Development, growth & differentiation
|June 7, 2023
概括
升高的pp60c-src激酶活性与神经网膜细胞转化为透镜细胞有关. 然而,c-src瘤基因表达并不直接触发这种细胞转化.
科学领域:
- 细胞生物学 细胞生物学
- 发展生物学 发展生物学
- 分子生物学分子生物学
背景情况:
- 在胚胎神经网膜 (NR) 细胞在体外转化为透镜细胞时观察到 pp60c-src 激酶活性升高.
- pp60c-src蛋白主要局限于宽容培养中的慢性体中.
- pp60c-src表达在非容许性培养中较低,在这些培养中,高葡萄糖或中等水平的葡萄糖抑制了慢性菌的形成199.
研究的目的:
- 为了研究pp60c-src在NR细胞转差异化中的作用.
- 为了确定c-src基因表达是否直接信号转基因差异化.
- 为了研究高葡萄糖和中等水平的199对慢性体的形成和相关蛋白质表达的影响.
主要方法:
- 在不同的介质 (FH,FHG,介质 199) 中培养质丰富和面膜细胞.
- 对pp60c-src蛋白和转录的免疫检测和量化.
- 分析三角晶体表达作为镜片细胞分化的标记.
- 使用Rous肉瘤病毒 (RSV) 变种来研究v-src和c-src表达的效果.
主要成果:
- 质体丰富的培养物形成稀疏的状体,具有增加的三角晶体和pp60c-src表达,但在高葡萄糖条件下,这是有限的.
- 与重新分化或脱分化的细胞相比,在转分化过程中,卷状细胞培养显示了较高的pp60c-src水平.
- v-src表达抑制了三角晶体积累,而c-src替代的RSV变体对NR转差的影响最小.
结论:
- 高葡萄糖部分阻断通过神经元的影响转差异化,但不能完全抑制早期阶段.
- pp60c-src表达与转差相关,但似乎不是直接信号分子启动该过程.
- c-src 瘤基因表达不是神经网膜细胞转化为透镜细胞的直接信号.
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