Single-Cell Microarray Analysis in Hippocampus CA1: Demonstration and Validation of Cellular Heterogeneity

Autor: Anton Bittner, Jessica Zhu, Mark G. Erlander, Lin Luo, Da-Thao Tran, Hongqing Guo, Fredrik Kamme, Ranelle C. Salunga, Jackson S. Wan, Nancy E. Miller, Jingxue Yu
Rok vydání: 2003
Předmět:
Zdroj: The Journal of Neuroscience. 23:3607-3615
ISSN: 1529-2401
0270-6474
Popis: Laser capture microdissection in combination with microarrays allows for the expression analysis of thousands of genes in selected cells. Here we describe single-cell gene expression profiling of CA1 neurons in the rat hippocampus using a combination of laser capture, T7 RNA amplification, and cDNA microarray analysis. Subsequent cluster analysis of the microarray data identified two different cell types: pyramidal neurons and an interneuron. Cluster analysis also revealed differences among the pyramidal neurons, indicating that even a single cell type in vivo is not a homogeneous population of cells at the gene expression level. Microarray data were confirmed by quantitative RT-PCR and in situ hybridization. We also report on the reproducibility and sensitivity of this combination of methods. Single-cell gene expression profiling offers a powerful tool to tackle the complexity of the mammalian brain.
Databáze: OpenAIRE