Cloning and characterization of developmentally differentially expressed novel genes from developing rat cerebral cortex.
- Author:
Hyun KIM
1
;
Kum HWANG
;
Jongrye JEON
;
Young Suk SUH
;
Changmee KIM
;
Im Joo RHYU
;
Sun Hwa PARK
Author Information
1. Dept. of Anatomy, College of Medicine, Korea University, Korea.
- Publication Type:Original Article
- Keywords:
neurogenesis;
neuronal migration;
synaptogenesis;
ordered differential display;
in situ hybridization histochemistry
- MeSH:
Adult;
Animals;
Brain;
Cell Movement;
Cerebral Cortex*;
Clone Cells*;
Cloning, Organism*;
DNA, Complementary;
Humans;
In Situ Hybridization;
Microscopy;
Neurogenesis;
Neurons;
Polymerase Chain Reaction;
Population Characteristics;
Rats*;
Sequence Analysis
- From:Korean Journal of Anatomy
1999;32(5):647-659
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
The structural complexity and heterogeneity of cerebral cortex have been obvious since the earliest days of light microscopy. In fact, if there is one word that captures many of the key attributes of cortical structures, it is diversity. Neurodevelopmental approach is the one of the effective ways to understand complicated structures of cerebral cortex. In this experiment, as a first step to clone the genes related with development of cerebral cortex, the developmentally differentially expressed genes were cloned from developing rat brain with ordered differential display PCR(ODD-PCR). Novel genes were screened from these cloned genes by sequencing and sequence analysis with blast search program. The developmental expression patterns of novel genes in the cerebral cortex were investigated with in situ hybridization histochemistry on the developing and adult rat brain sections. Among the forty one developmentally differentially expressed cDNA bands, amplified with InEGA primer and TEAC primer by ODD PCR, twenty novel genes were screened by sequencing and sequence analysis with blast search program. Through the investigation of developmental expression pattern with in situ hybridization histochemistry, specific expression of five novel genes in the developing rat cerebral cortex was identified. 20-E14-2 was highly expressed in the cerebral cortex during the period of neurogenesis. The expression of 20-E20-1, 20-E20-6b, and 20-P0-5 was relatively well matched with neuronal cell migration in the cerebral cortex. And the strong expression of 20-P0-8b was observed in the neuronal cells of cerebral cortex during the period of syanptogenesis. From these results, it may be suspected that the five novel genes play roles in the development of cerebral cortex.
