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用于大鼠脑内糖皮质激素受体mRNA定位的cRNA探针原位杂交方法的优化:详细方案

Optimization of cRNA probe in situ hybridization methodology for localization of glucocorticoid receptor mRNA in rat brain: a detailed protocol.

作者信息

Whitfield H J, Brady L S, Smith M A, Mamalaki E, Fox R J, Herkenham M

机构信息

Clinical Neuroendocrinology Branch, NIMH, Bethesda, Maryland 20892.

出版信息

Cell Mol Neurobiol. 1990 Mar;10(1):145-57. doi: 10.1007/BF00733641.

Abstract
  1. We have described a general ribonucleotide probe in situ hybridization methodology for localization of mRNA in frozen, unfixed tissue sections of brain. 2. The most important steps in obtaining consistent and reproducible autoradiographs with ribonucleotide probes were tissue acetylation and application of the radiolabeled probe to tissue sections under unsealed, glass coverslips. 3. Variability of the hybridization signal in tissue sections has been minimized to achieve a high degree of reproducibility within a given experiment as determined by densitometric analysis of rat glucocorticoid and mineralocorticoid receptor mRNA hybridization autoradiographs. 4. Tissue quality has been optimized for high-resolution anatomical localization of mRNA species by nuclear track emulsion. 5. The protocol is amenable to rapid, batchwise processing of tissue samples.
摘要
  1. 我们描述了一种通用的核糖核苷酸探针原位杂交方法,用于在大脑的冷冻、未固定组织切片中定位mRNA。2. 使用核糖核苷酸探针获得一致且可重复的放射自显影照片的最重要步骤是组织乙酰化以及在未密封的盖玻片下将放射性标记探针应用于组织切片。3. 通过对大鼠糖皮质激素和盐皮质激素受体mRNA杂交放射自显影照片进行光密度分析确定,组织切片中杂交信号的变异性已降至最低,以在给定实验中实现高度的可重复性。4. 已优化组织质量,以便通过核径迹乳剂对mRNA种类进行高分辨率的解剖定位。5. 该方案适用于组织样本的快速批量处理。

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