Data/hora: 04/06/2024 02:17:27

Provedor de dados: 	17	
País: 	United Kingdom	
Título: 	_Drosophila_ and human transcriptomic data mining provides evidence for therapeutic mechanism of pentylenetetrazole in Down syndrome	
Autores: 	Abhay Sharma.	
Data: 	2010-04-05	
Ano: 	2010	
Palavras-chave: 	Genetics &amp; Genomics; Neuroscience; Pharmacology; Bioinformatics.	
Resumo: 	Pentylenetetrazole (PTZ) has recently been found to ameliorate cognitive impairment in rodent models of Down syndrome (DS). The mechanism underlying PTZ&amp;#x2019;s therapeutic effect is however not clear. Microarray profiling has previously reported differential expression of genes in DS. No mammalian transcriptomic data on PTZ treatment however exists. Nevertheless, a _Drosophila_ model inspired by rodent models of PTZ induced kindling plasticity has recently been described. Microarray profiling has shown PTZ&amp;#x2019;s downregulatory effect on gene expression in fly heads. In a comparative transcriptomics approach, I have analyzed the available microarray data in order to identify potential mechanism of PTZ action in DS. I find that transcriptomic correlates of chronic PTZ in _Drosophila_ and DS counteract each other. A significant enrichment is observed between PTZ downregulated and DS upregulated genes, and a significant depletion between PTZ downregulated and DS dowwnregulated genes. Further, the common genes in PTZ downregulated and DS upregulated sets show enrichment for MAP kinase pathway. My analysis suggests that downregulation of MAP kinase pathway may mediate therapeutic effect of PTZ in DS. Existing evidence implicating MAP kinase pathway in DS supports this observation.	
Tipo: 	Manuscript	
Identificador: 	http://precedings.nature.com/documents/4330/version/1

oai:nature.com:10101/npre.2010.4330.1

http://hdl.handle.net/10101/npre.2010.4330.1	
Fonte: 	Nature Precedings	
Fonte: 	Creative Commons Attribution 3.0 License